-
Beta-2 Adrenergic Agonists Medications (OVERVIEW) | Bronchodilators
What are the Beta-2 Adrenergic Agonists Medications? Watch the video for an overview of the medical definition.
💥Beta-2 Adrenergic Agonists [Full Guide] ➜ ➜ ➜ https://bit.ly/35DHTti
➡️ What is a Beta-2 Adrenergic Agonist?
They are a class of drugs that act on the beta-2 adrenergic receptors. This causes the smooth muscles of the airways to relax, which is why they are effective in treating conditions that cause acute bronchospasm. Beta-2 Adrenergic Agonists cause smooth muscle relaxation, bronchodilation, vasodilation, and the release of insulin.
➡️ Types of Beta-2 Adrenergic Agonists:
1. Short-Acting Beta-2 Agonists
2. Long-Acting Beta-2 Agonists
3. Ultra-Long-Acting Beta-2 Agonists
Short-Acting Beta-2 Agonists are known as rescue drugs because they are used to treat acute bronchospas...
published: 26 Oct 2020
-
Mechanism of action of Beta 2 agonist
This video describes how Albuterol (Beta 2 agonists) cause bronchodilation by G protein coupled receptor mediated signaling.
published: 01 Apr 2016
-
Pharmacology - ADRENERGIC RECEPTORS & AGONISTS (MADE EASY)
👉📖 READY TO ACE YOUR EXAM? 📚 GET STUDY NOTES ON PATREON!
https://www.patreon.com/speedpharmacology
Adrenergic agonists are a group of drugs that stimulate alpha and beta adrenergic receptors by mimicking the action of naturally occurring catecholamines such as norepinephrine, epinephrine and dopamine. This pharmacology lecture covers topics such as mechanism of action of adrenergic agonists; catecholamines, noncatecholamines, direct acting, indirect acting, mixed action; location and function of alpha and beta receptors. Adrenergic agonists mentioned include: Epinephrine, Norepinephrine, Dopamine, Oxymetazoline, Phenylephrine, Clonidine, Dobutamine, Albuterol, Terbutaline, Salmeterol, Formoterol, Mirabegron, Cocaine, Amphetamine, Ephedrine, Pseudoephedrine.
Thanks for watching and don't ...
published: 21 Sep 2016
-
Neurology | Adrenergic Receptors
Official Ninja Nerd Website: https://ninjanerd.org
Ninja Nerds!
During this lecture Professor Zach Murphy will lecture on adrenergic receptors and the organs they will target when stimulated by norepinephrine, and epinephrine. Adrenergic receptors fall under two different categories which include alpha adrenergic receptors, and beta adrenergic receptors. This lecture will continue to build upon concepts learned during the sympathetic nervous system lecture. Please watch the sympathetic lecture in order to understand the concepts presented during this video. Please refer to the relevant lectures below. We hope you enjoy this lecture and be sure to support us below!
Sympathetic Nervous System:
https://www.youtube.com/watch?v=ITlKlDnyKfU
Parasympathetic Nervous System:
https://www.youtube....
published: 28 Feb 2018
-
Adrenergic Drugs - Pharmacology, Animation
(USMLE topics) Adrenergic receptors and drugs, agonists and antagonists, mechanisms of action.
Purchase a license to download a non-watermarked version of this video on AlilaMedicalMedia(dot)com
Check out our new Alila Academy - AlilaAcademy(dot)com - complete video courses with quizzes, PDFs, and downloadable images.
Voice by: Ashley Fleming
©Alila Medical Media. All rights reserved.
All images/videos by Alila Medical Media are for information purposes ONLY and are NOT intended to replace professional medical advice, diagnosis or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition.
Adrenergic drugs are medications that stimulate (sympathomimetic) or inhibit (sympatholytic) adrenergic receptors. Adrenergic...
published: 22 Jun 2020
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Adrenergic (adrenaline/epinephrine) Receptors
In this video, Dr Mike explains the receptors that adrenaline (epinephrine) and noradrenaline (norepinephrine) bind to. These receptors are classified into alpha and beta receptors and located in very distinct regions of the body.
published: 19 Apr 2020
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Beta-2 Receptors- Nursing Students, NP Students and Medical Students
Learn the essentials of Beta- 2 Receptors for Pharmacology in less than 5 minutes!
We commonly target Beta- 2 Receptors to treat COPD and Asthma .
published: 07 Dec 2019
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Beta Adrenergic Receptor Types and Function [Beta 1, 2, and 3 Receptor Mechanism of Action]
The different types of beta adrenergic receptors are made easy in this video. Learn where the different beta adrenergic receptors are located and what function they provide.
There are 3 main types of beta adrenergic receptors: Beta 1, Beta 2, and Beta 3.
Activation of Beta 1 receptors located in the heart leads to increased heart rate, cardiac contraction, and cardiac output which ultimately contributes to an increase in blood pressure. Stimulation of beta 1 receptors in the kidneys leads to renin release and activation of the renin angiotensin aldosterone system to improve blood pressure.
Activation of beta 2 receptors leads to smooth muscle relaxation of lungs, blood vessels, GI tract, bladder, and uterus as well as gluconeogensis and glycogenolysis in the liver.
Activation of beta...
published: 24 Jun 2020
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Alpha vs. Beta Adrenergic Receptors - Autonomic Nervous System - Physiology and Pharmacology
Nicotinic vs Muscarinic Receptors.
Acetylcholine vs Nor-Epinephrine.
Cholinergic vs Adrenergic Fibers | Neurology..
💊 Pharmacology Lectures: https://www.medicosisperfectionalis.com/
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published: 06 Nov 2020
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Pharmacology [ANS] 12- Adrenergic Receptors ( Alpha receptors & Beta receptors MADE EASY)
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- This is lesson no# 12 in Pharmacology and no# 12 in Autonomic Nervous System [ ANS ].
- In 4 minutes animation you'll learn about the Adrenergic receptors [ Adrenoceptors ] & their classification:
- Alpha receptors
- Beta receptors
- This lecture will prepare you to understand the adrenergic agonists and antagonists that we'll cover in the upcoming lecture...
published: 06 Mar 2018
4:23
Beta-2 Adrenergic Agonists Medications (OVERVIEW) | Bronchodilators
What are the Beta-2 Adrenergic Agonists Medications? Watch the video for an overview of the medical definition.
💥Beta-2 Adrenergic Agonists [Full Guide] ➜ ➜ ➜ ...
What are the Beta-2 Adrenergic Agonists Medications? Watch the video for an overview of the medical definition.
💥Beta-2 Adrenergic Agonists [Full Guide] ➜ ➜ ➜ https://bit.ly/35DHTti
➡️ What is a Beta-2 Adrenergic Agonist?
They are a class of drugs that act on the beta-2 adrenergic receptors. This causes the smooth muscles of the airways to relax, which is why they are effective in treating conditions that cause acute bronchospasm. Beta-2 Adrenergic Agonists cause smooth muscle relaxation, bronchodilation, vasodilation, and the release of insulin.
➡️ Types of Beta-2 Adrenergic Agonists:
1. Short-Acting Beta-2 Agonists
2. Long-Acting Beta-2 Agonists
3. Ultra-Long-Acting Beta-2 Agonists
Short-Acting Beta-2 Agonists are known as rescue drugs because they are used to treat acute bronchospasm. For example, if a patient is having an acute asthma attack, then a short-acting bronchodilator would be indicated. Long-Acting Beta-2 Agonists, on the other hand, are known as maintenance medications. That is because they are used to control and maintain conditions that cause chronic bronchospasm.
For example, they would be useful for the maintenance of patients with stable asthma and COPD who are not having an acute exacerbation. If the patient is having an acute attack, a short, fast-acting bronchodilator would be indicated. But if they're in stable condition, this is where long-acting bronchodilators are useful to help prevent those acute exacerbations.
➡️ Short-Acting Beta-2 Agonists:
▪ Albuterol (Ventolin, Proventil)
▪ Levalbuterol (Xopenex)
▪ Metaproterenol (Alupent)
➡️ Long-Acting Beta-2 Agonists:
▪ Arformoterol (Brovana)
▪ Salmeterol (Serevent)
▪ Formoterol (Foradil, Perforomist)
Keep in mind, these were just a few examples of the common types of this medication. We actually have a full guide on our website if you want to dive deeper into this topic. I will drop a link to it right below this video down in the description.
➡️ Side Effects of Beta-2 Adrenergic Agonists:
▪ Tachycardia
▪ Shakiness, tremors, and quivering
▪ Palpitations
▪ Excessive sweating
▪ Anxiety
▪ Insomnia
The severity of each side effect varies from patient to patient, but these are just some of the ones to look out for.
💥Beta-2 Adrenergic Agonists [Full Guide] ➜ ➜ ➜ https://bit.ly/35DHTti
—————
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🚑MEDICAL DISCLAIMER
Medicine and Respiratory Therapy are continuously changing practices. The information in this video is for educational and entertainment purposes only. For medical advice, please consult with a physician or qualified medical professional.
💡AFFILIATE DISCLAIMER
This description contains affiliate links. If you decide to purchase a product through one of them, we receive a small commission at no cost to you.
—————
⏰TIMESTAMPS
0:00 - Intro
0:27 - What is a Beta-2 Adrenergic Agonist?
0:47 - Types of Beta-2 Adrenergic Agonists
1:11 - Short-Acting Beta-2 Agonists
1:28 - Long-Acting Beta-2 Agonists
2:12 - Short-Acting Beta-2 Agonists
2:20 - Long-Acting Beta-2 Agonists
2:43 - Side Effects of Beta-2 Adrenergic Agonists
—————
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#RespiratoryTherapy #RespiratoryTherapist #RespiratoryTherapySchool
https://wn.com/Beta_2_Adrenergic_Agonists_Medications_(Overview)_|_Bronchodilators
What are the Beta-2 Adrenergic Agonists Medications? Watch the video for an overview of the medical definition.
💥Beta-2 Adrenergic Agonists [Full Guide] ➜ ➜ ➜ https://bit.ly/35DHTti
➡️ What is a Beta-2 Adrenergic Agonist?
They are a class of drugs that act on the beta-2 adrenergic receptors. This causes the smooth muscles of the airways to relax, which is why they are effective in treating conditions that cause acute bronchospasm. Beta-2 Adrenergic Agonists cause smooth muscle relaxation, bronchodilation, vasodilation, and the release of insulin.
➡️ Types of Beta-2 Adrenergic Agonists:
1. Short-Acting Beta-2 Agonists
2. Long-Acting Beta-2 Agonists
3. Ultra-Long-Acting Beta-2 Agonists
Short-Acting Beta-2 Agonists are known as rescue drugs because they are used to treat acute bronchospasm. For example, if a patient is having an acute asthma attack, then a short-acting bronchodilator would be indicated. Long-Acting Beta-2 Agonists, on the other hand, are known as maintenance medications. That is because they are used to control and maintain conditions that cause chronic bronchospasm.
For example, they would be useful for the maintenance of patients with stable asthma and COPD who are not having an acute exacerbation. If the patient is having an acute attack, a short, fast-acting bronchodilator would be indicated. But if they're in stable condition, this is where long-acting bronchodilators are useful to help prevent those acute exacerbations.
➡️ Short-Acting Beta-2 Agonists:
▪ Albuterol (Ventolin, Proventil)
▪ Levalbuterol (Xopenex)
▪ Metaproterenol (Alupent)
➡️ Long-Acting Beta-2 Agonists:
▪ Arformoterol (Brovana)
▪ Salmeterol (Serevent)
▪ Formoterol (Foradil, Perforomist)
Keep in mind, these were just a few examples of the common types of this medication. We actually have a full guide on our website if you want to dive deeper into this topic. I will drop a link to it right below this video down in the description.
➡️ Side Effects of Beta-2 Adrenergic Agonists:
▪ Tachycardia
▪ Shakiness, tremors, and quivering
▪ Palpitations
▪ Excessive sweating
▪ Anxiety
▪ Insomnia
The severity of each side effect varies from patient to patient, but these are just some of the ones to look out for.
💥Beta-2 Adrenergic Agonists [Full Guide] ➜ ➜ ➜ https://bit.ly/35DHTti
—————
📗 BEST STUDY GUIDES FOR YOU
▪ TMC Test Bank 👉 http://bit.ly/2IGeqSu
▪ Hacking the TMC Exam 👉 http://bit.ly/2XBc8do
▪ TMC Exam Bundle (Save $) 👉 https://bit.ly/34pqEsV
▪ Daily TMC Practice Questions 👉 http://bit.ly/2NnXh3C
💙MORE FROM RTZ
▪ Free TMC Practice Exam 👉 http://bit.ly/2XlwASL
▪ Free RRT Cheat Sheet 👉 http://bit.ly/2IbmOKB
▪ Resources for RT's 👉 http://bit.ly/2WVV5qo
▪ Testimonials 👉 http://bit.ly/2x7b5Gl
🌐FOLLOW US
▪ Instagram 👉 http://bit.ly/2FhF0jV
▪ Twitter 👉 http://bit.ly/2ZsS6T1
▪ Facebook 👉 http://bit.ly/2MSEejt
▪ Pinterest 👉 http://bit.ly/2ZwVLPw
🚑MEDICAL DISCLAIMER
Medicine and Respiratory Therapy are continuously changing practices. The information in this video is for educational and entertainment purposes only. For medical advice, please consult with a physician or qualified medical professional.
💡AFFILIATE DISCLAIMER
This description contains affiliate links. If you decide to purchase a product through one of them, we receive a small commission at no cost to you.
—————
⏰TIMESTAMPS
0:00 - Intro
0:27 - What is a Beta-2 Adrenergic Agonist?
0:47 - Types of Beta-2 Adrenergic Agonists
1:11 - Short-Acting Beta-2 Agonists
1:28 - Long-Acting Beta-2 Agonists
2:12 - Short-Acting Beta-2 Agonists
2:20 - Long-Acting Beta-2 Agonists
2:43 - Side Effects of Beta-2 Adrenergic Agonists
—————
🖼CREDIT FOR MUSIC AND GRAPHICS:
▪ Graphics: www.canva.com
▪ Graphics: www.freevector.com
▪ Graphics: www.vecteezy.com
▪ Graphics: www.pngtree.com
#RespiratoryTherapy #RespiratoryTherapist #RespiratoryTherapySchool
- published: 26 Oct 2020
- views: 25534
4:02
Mechanism of action of Beta 2 agonist
This video describes how Albuterol (Beta 2 agonists) cause bronchodilation by G protein coupled receptor mediated signaling.
This video describes how Albuterol (Beta 2 agonists) cause bronchodilation by G protein coupled receptor mediated signaling.
https://wn.com/Mechanism_Of_Action_Of_Beta_2_Agonist
This video describes how Albuterol (Beta 2 agonists) cause bronchodilation by G protein coupled receptor mediated signaling.
- published: 01 Apr 2016
- views: 119574
17:51
Pharmacology - ADRENERGIC RECEPTORS & AGONISTS (MADE EASY)
👉📖 READY TO ACE YOUR EXAM? 📚 GET STUDY NOTES ON PATREON!
https://www.patreon.com/speedpharmacology
Adrenergic agonists are a group of drugs that stimulate alph...
👉📖 READY TO ACE YOUR EXAM? 📚 GET STUDY NOTES ON PATREON!
https://www.patreon.com/speedpharmacology
Adrenergic agonists are a group of drugs that stimulate alpha and beta adrenergic receptors by mimicking the action of naturally occurring catecholamines such as norepinephrine, epinephrine and dopamine. This pharmacology lecture covers topics such as mechanism of action of adrenergic agonists; catecholamines, noncatecholamines, direct acting, indirect acting, mixed action; location and function of alpha and beta receptors. Adrenergic agonists mentioned include: Epinephrine, Norepinephrine, Dopamine, Oxymetazoline, Phenylephrine, Clonidine, Dobutamine, Albuterol, Terbutaline, Salmeterol, Formoterol, Mirabegron, Cocaine, Amphetamine, Ephedrine, Pseudoephedrine.
Thanks for watching and don't forget to SUBSCRIBE, hit the LIKE button👍 and click the BELL button🔔 for future notifications!!!
0:00 Intro
0:44 Adrenergic neuron
3:01 Adrenergic receptors
3:45 Alpha receptors
6:21 Beta receptors
8:22 Adrenergic agonists
10:20 Direct-acting agonists
15:53 Indirect-acting agonists
16:37 Mixed-action agonists
https://wn.com/Pharmacology_Adrenergic_Receptors_Agonists_(Made_Easy)
👉📖 READY TO ACE YOUR EXAM? 📚 GET STUDY NOTES ON PATREON!
https://www.patreon.com/speedpharmacology
Adrenergic agonists are a group of drugs that stimulate alpha and beta adrenergic receptors by mimicking the action of naturally occurring catecholamines such as norepinephrine, epinephrine and dopamine. This pharmacology lecture covers topics such as mechanism of action of adrenergic agonists; catecholamines, noncatecholamines, direct acting, indirect acting, mixed action; location and function of alpha and beta receptors. Adrenergic agonists mentioned include: Epinephrine, Norepinephrine, Dopamine, Oxymetazoline, Phenylephrine, Clonidine, Dobutamine, Albuterol, Terbutaline, Salmeterol, Formoterol, Mirabegron, Cocaine, Amphetamine, Ephedrine, Pseudoephedrine.
Thanks for watching and don't forget to SUBSCRIBE, hit the LIKE button👍 and click the BELL button🔔 for future notifications!!!
0:00 Intro
0:44 Adrenergic neuron
3:01 Adrenergic receptors
3:45 Alpha receptors
6:21 Beta receptors
8:22 Adrenergic agonists
10:20 Direct-acting agonists
15:53 Indirect-acting agonists
16:37 Mixed-action agonists
- published: 21 Sep 2016
- views: 2160755
1:05:50
Neurology | Adrenergic Receptors
Official Ninja Nerd Website: https://ninjanerd.org
Ninja Nerds!
During this lecture Professor Zach Murphy will lecture on adrenergic receptors and the organs t...
Official Ninja Nerd Website: https://ninjanerd.org
Ninja Nerds!
During this lecture Professor Zach Murphy will lecture on adrenergic receptors and the organs they will target when stimulated by norepinephrine, and epinephrine. Adrenergic receptors fall under two different categories which include alpha adrenergic receptors, and beta adrenergic receptors. This lecture will continue to build upon concepts learned during the sympathetic nervous system lecture. Please watch the sympathetic lecture in order to understand the concepts presented during this video. Please refer to the relevant lectures below. We hope you enjoy this lecture and be sure to support us below!
Sympathetic Nervous System:
https://www.youtube.com/watch?v=ITlKlDnyKfU
Parasympathetic Nervous System:
https://www.youtube.com/watch?v=F3U9pB5w0XM&t=25s
Autonomic Nervous System:
https://www.youtube.com/watch?v=7dZHmKMLdC0&t=25s
Join this channel to get access to perks:
https://www.youtube.com/channel/UC6QYFutt9cluQ3uSM963_KQ/join
APPAREL |
We are switching merchandise suppliers.
DONATE
PATREON | https://www.patreon.com/NinjaNerdScience
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#ninjanerd #AdrenergicReceptors #SympatheticNervousSystem
https://wn.com/Neurology_|_Adrenergic_Receptors
Official Ninja Nerd Website: https://ninjanerd.org
Ninja Nerds!
During this lecture Professor Zach Murphy will lecture on adrenergic receptors and the organs they will target when stimulated by norepinephrine, and epinephrine. Adrenergic receptors fall under two different categories which include alpha adrenergic receptors, and beta adrenergic receptors. This lecture will continue to build upon concepts learned during the sympathetic nervous system lecture. Please watch the sympathetic lecture in order to understand the concepts presented during this video. Please refer to the relevant lectures below. We hope you enjoy this lecture and be sure to support us below!
Sympathetic Nervous System:
https://www.youtube.com/watch?v=ITlKlDnyKfU
Parasympathetic Nervous System:
https://www.youtube.com/watch?v=F3U9pB5w0XM&t=25s
Autonomic Nervous System:
https://www.youtube.com/watch?v=7dZHmKMLdC0&t=25s
Join this channel to get access to perks:
https://www.youtube.com/channel/UC6QYFutt9cluQ3uSM963_KQ/join
APPAREL |
We are switching merchandise suppliers.
DONATE
PATREON | https://www.patreon.com/NinjaNerdScience
PAYPAL | https://www.paypal.com/paypalme/ninjanerdscience
SOCIAL MEDIA
FACEBOOK | https://www.facebook.com/NinjaNerdlectures
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@NinjaNerdSci
DISCORD | https://discord.gg/3srTG4dngW
#ninjanerd #AdrenergicReceptors #SympatheticNervousSystem
- published: 28 Feb 2018
- views: 481260
4:48
Adrenergic Drugs - Pharmacology, Animation
(USMLE topics) Adrenergic receptors and drugs, agonists and antagonists, mechanisms of action.
Purchase a license to download a non-watermarked version of thi...
(USMLE topics) Adrenergic receptors and drugs, agonists and antagonists, mechanisms of action.
Purchase a license to download a non-watermarked version of this video on AlilaMedicalMedia(dot)com
Check out our new Alila Academy - AlilaAcademy(dot)com - complete video courses with quizzes, PDFs, and downloadable images.
Voice by: Ashley Fleming
©Alila Medical Media. All rights reserved.
All images/videos by Alila Medical Media are for information purposes ONLY and are NOT intended to replace professional medical advice, diagnosis or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition.
Adrenergic drugs are medications that stimulate (sympathomimetic) or inhibit (sympatholytic) adrenergic receptors. Adrenergic receptors mediate the action of noradrenaline, also known as norepinephrine; and adrenaline, also known as epinephrine. Adrenergic neurotransmission is responsible for the body’s sympathetic response - the “fight or flight” state - which dilates pupils, increases heart rate and respiratory rate, diverts blood flow to the muscles, inhibits activities that are not essential in emergency, and releases stored energy. Adrenergic receptors are also active in the central nervous system, in processes such as memory and alertness.
There are several types of adrenergic receptors, all of which are G-protein coupled, but they differ in several aspects:
- They couple with different G-proteins, leading to different downstream signalings, and hence different cellular responses.
- They differ in sensitivity to different drugs.
- While several receptors may coexist in the same tissue, there is usually one that predominates and is mainly responsible for the tissue’s adrenergic response. For example: alpha-1 receptor predominates in peripheral vascular smooth muscle – its activation induces vasoconstriction; beta-1 is prominent in the heart - it increases heart rate and cardiac contractility when activated; beta-2 activation results in bronchodilation in the lungs; and alpha-2 reduces sympathetic outflow in the brainstem. Alpha-2 can also act at the pre-synaptic neuron, where it inhibits neurotransmitter release, as a feedback mechanism.
Most adrenergic drugs act directly at the receptors, only a few act indirectly by promoting neurotransmitter release, or by preventing its degradation.
Non-specific drugs are those that can bind to several receptors. Non-specific agonists include epinephrine, norepinephrine and dopamine. Their relative activity via different receptors depends on the dose administered. For example, epinephrine has a greater affinity for beta receptors in small doses, but can bind to alpha receptors equally well at higher doses. At low levels, epinephrine preferentially binds to vascular beta-2-receptor and causes vasodilation. As the concentration of epinephrine increases, lower affinity alpha-receptors begin to bind epinephrine, producing vasoconstriction. Because there are more alpha-receptors than beta-receptors in peripheral blood vessels, alpha-mediated vasoconstriction eventually overrides beta-mediated vasodilation. Thus, at higher pharmacologic doses, epinephrine induces vasoconstriction via alpha receptors; increases heart rate, cardiac contractility via beta-1 receptor; and dilates bronchi via beta-2 receptor. Epinephrine is the treatment of choice for cardiac arrest, anaphylaxis, and severe croup.
Specific drugs target only a certain type of receptor:
- Alpha-1 specific agonists induce smooth muscle contraction and are used as vasopressors for treatment of shock, hypotension; as nasal decongestants; or to dilate pupils.
Alpha-1 antagonists, on the other hand, are used to treat hypertension, and to relax smooth muscle within the prostate for treatment of benign prostatic hyperplasia.
- Alpha-2 agonists act on alpha-2 receptors in the brainstem to reduce sympathetic tone, and are used to treat hypertension. Stimulation of peripheral alpha-2 receptors may initially cause vasoconstriction, but it is quickly overridden by the central effect.
- Beta-1 agonists increase heart rate and contractility, and are indicated for treatment of cardiogenic shock and heart failure.
- Beta-2 agonists relax smooth muscles. They are used to dilate bronchi, for treatment of asthma, obstructive pulmonary disease, and anaphylaxis. Some are used to relax uterine smooth muscle to delay preterm birth.
Beta antagonists, or beta blockers, are used for the treatment of hypertension, ischemic heart disease, obstructive cardiomyopathy, and arrhythmias.
https://wn.com/Adrenergic_Drugs_Pharmacology,_Animation
(USMLE topics) Adrenergic receptors and drugs, agonists and antagonists, mechanisms of action.
Purchase a license to download a non-watermarked version of this video on AlilaMedicalMedia(dot)com
Check out our new Alila Academy - AlilaAcademy(dot)com - complete video courses with quizzes, PDFs, and downloadable images.
Voice by: Ashley Fleming
©Alila Medical Media. All rights reserved.
All images/videos by Alila Medical Media are for information purposes ONLY and are NOT intended to replace professional medical advice, diagnosis or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition.
Adrenergic drugs are medications that stimulate (sympathomimetic) or inhibit (sympatholytic) adrenergic receptors. Adrenergic receptors mediate the action of noradrenaline, also known as norepinephrine; and adrenaline, also known as epinephrine. Adrenergic neurotransmission is responsible for the body’s sympathetic response - the “fight or flight” state - which dilates pupils, increases heart rate and respiratory rate, diverts blood flow to the muscles, inhibits activities that are not essential in emergency, and releases stored energy. Adrenergic receptors are also active in the central nervous system, in processes such as memory and alertness.
There are several types of adrenergic receptors, all of which are G-protein coupled, but they differ in several aspects:
- They couple with different G-proteins, leading to different downstream signalings, and hence different cellular responses.
- They differ in sensitivity to different drugs.
- While several receptors may coexist in the same tissue, there is usually one that predominates and is mainly responsible for the tissue’s adrenergic response. For example: alpha-1 receptor predominates in peripheral vascular smooth muscle – its activation induces vasoconstriction; beta-1 is prominent in the heart - it increases heart rate and cardiac contractility when activated; beta-2 activation results in bronchodilation in the lungs; and alpha-2 reduces sympathetic outflow in the brainstem. Alpha-2 can also act at the pre-synaptic neuron, where it inhibits neurotransmitter release, as a feedback mechanism.
Most adrenergic drugs act directly at the receptors, only a few act indirectly by promoting neurotransmitter release, or by preventing its degradation.
Non-specific drugs are those that can bind to several receptors. Non-specific agonists include epinephrine, norepinephrine and dopamine. Their relative activity via different receptors depends on the dose administered. For example, epinephrine has a greater affinity for beta receptors in small doses, but can bind to alpha receptors equally well at higher doses. At low levels, epinephrine preferentially binds to vascular beta-2-receptor and causes vasodilation. As the concentration of epinephrine increases, lower affinity alpha-receptors begin to bind epinephrine, producing vasoconstriction. Because there are more alpha-receptors than beta-receptors in peripheral blood vessels, alpha-mediated vasoconstriction eventually overrides beta-mediated vasodilation. Thus, at higher pharmacologic doses, epinephrine induces vasoconstriction via alpha receptors; increases heart rate, cardiac contractility via beta-1 receptor; and dilates bronchi via beta-2 receptor. Epinephrine is the treatment of choice for cardiac arrest, anaphylaxis, and severe croup.
Specific drugs target only a certain type of receptor:
- Alpha-1 specific agonists induce smooth muscle contraction and are used as vasopressors for treatment of shock, hypotension; as nasal decongestants; or to dilate pupils.
Alpha-1 antagonists, on the other hand, are used to treat hypertension, and to relax smooth muscle within the prostate for treatment of benign prostatic hyperplasia.
- Alpha-2 agonists act on alpha-2 receptors in the brainstem to reduce sympathetic tone, and are used to treat hypertension. Stimulation of peripheral alpha-2 receptors may initially cause vasoconstriction, but it is quickly overridden by the central effect.
- Beta-1 agonists increase heart rate and contractility, and are indicated for treatment of cardiogenic shock and heart failure.
- Beta-2 agonists relax smooth muscles. They are used to dilate bronchi, for treatment of asthma, obstructive pulmonary disease, and anaphylaxis. Some are used to relax uterine smooth muscle to delay preterm birth.
Beta antagonists, or beta blockers, are used for the treatment of hypertension, ischemic heart disease, obstructive cardiomyopathy, and arrhythmias.
- published: 22 Jun 2020
- views: 311354
5:41
Adrenergic (adrenaline/epinephrine) Receptors
In this video, Dr Mike explains the receptors that adrenaline (epinephrine) and noradrenaline (norepinephrine) bind to. These receptors are classified into alph...
In this video, Dr Mike explains the receptors that adrenaline (epinephrine) and noradrenaline (norepinephrine) bind to. These receptors are classified into alpha and beta receptors and located in very distinct regions of the body.
https://wn.com/Adrenergic_(Adrenaline_Epinephrine)_Receptors
In this video, Dr Mike explains the receptors that adrenaline (epinephrine) and noradrenaline (norepinephrine) bind to. These receptors are classified into alpha and beta receptors and located in very distinct regions of the body.
- published: 19 Apr 2020
- views: 121212
2:32
Beta-2 Receptors- Nursing Students, NP Students and Medical Students
Learn the essentials of Beta- 2 Receptors for Pharmacology in less than 5 minutes!
We commonly target Beta- 2 Receptors to treat COPD and Asthma .
Learn the essentials of Beta- 2 Receptors for Pharmacology in less than 5 minutes!
We commonly target Beta- 2 Receptors to treat COPD and Asthma .
https://wn.com/Beta_2_Receptors_Nursing_Students,_Np_Students_And_Medical_Students
Learn the essentials of Beta- 2 Receptors for Pharmacology in less than 5 minutes!
We commonly target Beta- 2 Receptors to treat COPD and Asthma .
- published: 07 Dec 2019
- views: 4058
10:41
Beta Adrenergic Receptor Types and Function [Beta 1, 2, and 3 Receptor Mechanism of Action]
The different types of beta adrenergic receptors are made easy in this video. Learn where the different beta adrenergic receptors are located and what function ...
The different types of beta adrenergic receptors are made easy in this video. Learn where the different beta adrenergic receptors are located and what function they provide.
There are 3 main types of beta adrenergic receptors: Beta 1, Beta 2, and Beta 3.
Activation of Beta 1 receptors located in the heart leads to increased heart rate, cardiac contraction, and cardiac output which ultimately contributes to an increase in blood pressure. Stimulation of beta 1 receptors in the kidneys leads to renin release and activation of the renin angiotensin aldosterone system to improve blood pressure.
Activation of beta 2 receptors leads to smooth muscle relaxation of lungs, blood vessels, GI tract, bladder, and uterus as well as gluconeogensis and glycogenolysis in the liver.
Activation of beta 3 receptors leads to fat breakdown in adipose tissue and bladder relaxation.
Beta adrenergic receptors are activated by catecholamines, such as norepinephrine and epinephrine, of the sympathetic nervous system.
*Edit: At 6:50 it says Beta-1 receptors are primarily located in the heart and lungs. This is meant to say heart and kidneys (lungs are primarily Beta-2).
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The different types of beta adrenergic receptors are made easy in this video. Learn where the different beta adrenergic receptors are located and what function they provide.
There are 3 main types of beta adrenergic receptors: Beta 1, Beta 2, and Beta 3.
Activation of Beta 1 receptors located in the heart leads to increased heart rate, cardiac contraction, and cardiac output which ultimately contributes to an increase in blood pressure. Stimulation of beta 1 receptors in the kidneys leads to renin release and activation of the renin angiotensin aldosterone system to improve blood pressure.
Activation of beta 2 receptors leads to smooth muscle relaxation of lungs, blood vessels, GI tract, bladder, and uterus as well as gluconeogensis and glycogenolysis in the liver.
Activation of beta 3 receptors leads to fat breakdown in adipose tissue and bladder relaxation.
Beta adrenergic receptors are activated by catecholamines, such as norepinephrine and epinephrine, of the sympathetic nervous system.
*Edit: At 6:50 it says Beta-1 receptors are primarily located in the heart and lungs. This is meant to say heart and kidneys (lungs are primarily Beta-2).
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- published: 24 Jun 2020
- views: 25781
20:19
Alpha vs. Beta Adrenergic Receptors - Autonomic Nervous System - Physiology and Pharmacology
Nicotinic vs Muscarinic Receptors.
Acetylcholine vs Nor-Epinephrine.
Cholinergic vs Adrenergic Fibers | Neurology..
💊 Pharmacology Lectures: https://www.medico...
Nicotinic vs Muscarinic Receptors.
Acetylcholine vs Nor-Epinephrine.
Cholinergic vs Adrenergic Fibers | Neurology..
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Cholinergic vs Adrenergic Fibers | Neurology..
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- published: 06 Nov 2020
- views: 193899
4:37
Pharmacology [ANS] 12- Adrenergic Receptors ( Alpha receptors & Beta receptors MADE EASY)
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- This is lesson no# 12 in Pharmacology and no# 12 in Autonomic Nervous System [ ANS ].
- In 4 minutes animation you'll learn about the Adrenergic receptors [ Adrenoceptors ] & their classification:
- Alpha receptors
- Beta receptors
- This lecture will prepare you to understand the adrenergic agonists and antagonists that we'll cover in the upcoming lectures.
***Downloads***
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- This is lesson no# 12 in Pharmacology and no# 12 in Autonomic Nervous System [ ANS ].
- In 4 minutes animation you'll learn about the Adrenergic receptors [ Adrenoceptors ] & their classification:
- Alpha receptors
- Beta receptors
- This lecture will prepare you to understand the adrenergic agonists and antagonists that we'll cover in the upcoming lectures.
***Downloads***
- The lecture's PDF:
https://www.mediafire.com/file/qk4r0rzc15znknh/Pharmacology-ANS-12-_Adrenergic_receptors_%255B_Adrenoceptors_%255D__MedicalVideosChannel.pdf/file
------------
- Autonomic Nervous System Pharmacology series ( Pharmacology MADE EASY )
https://www.youtube.com/playlist?list=PLL3y4VLBMQfhIoxaZXqRlqykC8JCBZFop
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- I hope this video was useful for you. I appreciate every like, comment & share. Subscribe and wait for more useful videos.
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- published: 06 Mar 2018
- views: 36675
-
Alpha-1 Adrenergic Receptors
Alpha-1 adrenergic receptors are G-protein coupled receptors that make up the sympathetic response in the autonomic nervous system. When a ligand binds to the Alpha-1 receptor, it’s corresponding Gq protein will trigger a cascade of downstream messengers, including phospholipase C, IP3, and DAG. Since alpha-1 receptors are found on smooth muscle, activation of these receptors will lead to muscle contraction, such as vasoconstriction, pupil dilation, and bladder sphincter constriction.
Interactive Image: https://pixorize.com/view/5101
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published: 21 Oct 2019
-
Alpha Adrenergic Receptors: Alpha-1 & Alpha-2
In this 2021 NEI Congress Highlight, Dr. Jeffrey Strawn reviews the classification and distribution of alpha adrenergic receptors.
There are 2 main types of alpha adrenergic receptors: alpha-1 and alpha-2. Both alpha-1 and alpha-2 adrenoceptors have numerous subtypes that are distributed differently across a number of regions throughout the body. Alpha adrenergic receptor agents, including alpha-2 agonists (such as clonidine or guanfacine), or alpha-1 antagonists (such as prazosin), may exhibit different therapeutic effects and tolerability profiles based on their selectivity for alpha-1 and alpha-2 adrenoceptors, and their respective subtypes. Agents acting on these receptors result in a variety of actions depending on the type as well as the location in various organs and tissues.
Lear...
published: 30 Apr 2022
-
Adrenergic Receptors - CHEAT SHEET!
In this video, Dr Mike shows you a cheat sheet to remember the different kinds of receptors that detect adrenaline (epinephrine) and noradrenaline (norepinephrine). These receptors are called alpha and beta.
published: 27 Mar 2022
-
Adrenergic Receptors: Types, Distribution, Mechanism, Agonist, Antagonist
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Adrenergic Receptors:
Adrenergic receptors are G protein-coupled receptors. Broadly they are divided into α, and β adrenergic receptors. α1 receptors are involved in vasoconstriction, contraction of smooth muscles in the genitourinary tract, glandular secretion, and gut relaxation. α2 receptors are involved in the inhibition of neurotransmitter release from nerve endings, decrease in sympathetic outflow, inhibition of insulin release, platelet aggregation, and vasoconstriction. β1 receptors are involved i...
published: 16 Aug 2022
-
Pharmacology - ADRENERGIC RECEPTORS & AGONISTS (MADE EASY)
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Adrenergic agonists are a group of drugs that stimulate alpha and beta adrenergic receptors by mimicking the action of naturally occurring catecholamines such as norepinephrine, epinephrine and dopamine. This pharmacology lecture covers topics such as mechanism of action of adrenergic agonists; catecholamines, noncatecholamines, direct acting, indirect acting, mixed action; location and function of alpha and beta receptors. Adrenergic agonists mentioned include: Epinephrine, Norepinephrine, Dopamine, Oxymetazoline, Phenylephrine, Clonidine, Dobutamine, Albuterol, Terbutaline, Salmeterol, Formoterol, Mirabegron, Cocaine, Amphetamine, Ephedrine, Pseudoephedrine.
Thanks for watching and don't ...
published: 21 Sep 2016
-
Neurology | Adrenergic Receptors
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During this lecture Professor Zach Murphy will lecture on adrenergic receptors and the organs they will target when stimulated by norepinephrine, and epinephrine. Adrenergic receptors fall under two different categories which include alpha adrenergic receptors, and beta adrenergic receptors. This lecture will continue to build upon concepts learned during the sympathetic nervous system lecture. Please watch the sympathetic lecture in order to understand the concepts presented during this video. Please refer to the relevant lectures below. We hope you enjoy this lecture and be sure to support us below!
Sympathetic Nervous System:
https://www.youtube.com/watch?v=ITlKlDnyKfU
Parasympathetic Nervous System:
https://www.youtube....
published: 28 Feb 2018
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Adrenergic Receptors Tips & Tricks to remember (Adrenergic recep mad Easy)#shorts
Adrenergic Receptors Tips & Tricks to remember (Adrenergic recep mad Easy)
#AlphaReceptors
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published: 08 Feb 2022
-
Alpha vs. Beta Adrenergic Receptors - Autonomic Nervous System - Physiology and Pharmacology
Nicotinic vs Muscarinic Receptors.
Acetylcholine vs Nor-Epinephrine.
Cholinergic vs Adrenergic Fibers | Neurology..
💊 Pharmacology Lectures: https://www.medicosisperfectionalis.com/
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published: 06 Nov 2020
-
Alpha Adrenergic Receptor Types, Location, and Function [Alpha 1 and Alpha 2 Mechanism of Action]
Learn about the different types of alpha adrenergic receptors, their location, and their function in this video that makes adrenergic receptors easy.
Alpha and beta adrenergic receptors are involved in generating a sympathetic fight or flight response when activated by catecholamines such as epinephrine and norepinephrine.
The different types of alpha adrenergic receptors are discussed in this video including: Alpha 1 receptors and Alpha 2 receptors. Learn where in the body they are located including blood vessels, prostate, bladder, stomach and GI tract, and in the eye.
Lastly, learn what the alpha adrenergic receptor function is to generate the fight or flight response.
_______________________________
Alpha Receptors:
🔸Lecture - https://www.ezmedlearning.com/blog/alpha-receptors
...
published: 28 Jun 2020
-
Adrenergic Drugs - Pharmacology, Animation
(USMLE topics) Adrenergic receptors and drugs, agonists and antagonists, mechanisms of action.
Purchase a license to download a non-watermarked version of this video on AlilaMedicalMedia(dot)com
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Voice by: Ashley Fleming
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All images/videos by Alila Medical Media are for information purposes ONLY and are NOT intended to replace professional medical advice, diagnosis or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition.
Adrenergic drugs are medications that stimulate (sympathomimetic) or inhibit (sympatholytic) adrenergic receptors. Adrenergic...
published: 22 Jun 2020
6:50
Alpha-1 Adrenergic Receptors
Alpha-1 adrenergic receptors are G-protein coupled receptors that make up the sympathetic response in the autonomic nervous system. When a ligand binds to the A...
Alpha-1 adrenergic receptors are G-protein coupled receptors that make up the sympathetic response in the autonomic nervous system. When a ligand binds to the Alpha-1 receptor, it’s corresponding Gq protein will trigger a cascade of downstream messengers, including phospholipase C, IP3, and DAG. Since alpha-1 receptors are found on smooth muscle, activation of these receptors will lead to muscle contraction, such as vasoconstriction, pupil dilation, and bladder sphincter constriction.
Interactive Image: https://pixorize.com/view/5101
Subscribe: https://bit.ly/2yybxhm
https://wn.com/Alpha_1_Adrenergic_Receptors
Alpha-1 adrenergic receptors are G-protein coupled receptors that make up the sympathetic response in the autonomic nervous system. When a ligand binds to the Alpha-1 receptor, it’s corresponding Gq protein will trigger a cascade of downstream messengers, including phospholipase C, IP3, and DAG. Since alpha-1 receptors are found on smooth muscle, activation of these receptors will lead to muscle contraction, such as vasoconstriction, pupil dilation, and bladder sphincter constriction.
Interactive Image: https://pixorize.com/view/5101
Subscribe: https://bit.ly/2yybxhm
- published: 21 Oct 2019
- views: 64461
3:00
Alpha Adrenergic Receptors: Alpha-1 & Alpha-2
In this 2021 NEI Congress Highlight, Dr. Jeffrey Strawn reviews the classification and distribution of alpha adrenergic receptors.
There are 2 main types of al...
In this 2021 NEI Congress Highlight, Dr. Jeffrey Strawn reviews the classification and distribution of alpha adrenergic receptors.
There are 2 main types of alpha adrenergic receptors: alpha-1 and alpha-2. Both alpha-1 and alpha-2 adrenoceptors have numerous subtypes that are distributed differently across a number of regions throughout the body. Alpha adrenergic receptor agents, including alpha-2 agonists (such as clonidine or guanfacine), or alpha-1 antagonists (such as prazosin), may exhibit different therapeutic effects and tolerability profiles based on their selectivity for alpha-1 and alpha-2 adrenoceptors, and their respective subtypes. Agents acting on these receptors result in a variety of actions depending on the type as well as the location in various organs and tissues.
Learn about upcoming NEI Meetings: https://nei.global/meetings
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Copyright © Neuroscience Education Institute. All rights reserved.
https://wn.com/Alpha_Adrenergic_Receptors_Alpha_1_Alpha_2
In this 2021 NEI Congress Highlight, Dr. Jeffrey Strawn reviews the classification and distribution of alpha adrenergic receptors.
There are 2 main types of alpha adrenergic receptors: alpha-1 and alpha-2. Both alpha-1 and alpha-2 adrenoceptors have numerous subtypes that are distributed differently across a number of regions throughout the body. Alpha adrenergic receptor agents, including alpha-2 agonists (such as clonidine or guanfacine), or alpha-1 antagonists (such as prazosin), may exhibit different therapeutic effects and tolerability profiles based on their selectivity for alpha-1 and alpha-2 adrenoceptors, and their respective subtypes. Agents acting on these receptors result in a variety of actions depending on the type as well as the location in various organs and tissues.
Learn about upcoming NEI Meetings: https://nei.global/meetings
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- published: 30 Apr 2022
- views: 33829
10:20
Adrenergic Receptors - CHEAT SHEET!
In this video, Dr Mike shows you a cheat sheet to remember the different kinds of receptors that detect adrenaline (epinephrine) and noradrenaline (norepinephri...
In this video, Dr Mike shows you a cheat sheet to remember the different kinds of receptors that detect adrenaline (epinephrine) and noradrenaline (norepinephrine). These receptors are called alpha and beta.
https://wn.com/Adrenergic_Receptors_Cheat_Sheet
In this video, Dr Mike shows you a cheat sheet to remember the different kinds of receptors that detect adrenaline (epinephrine) and noradrenaline (norepinephrine). These receptors are called alpha and beta.
- published: 27 Mar 2022
- views: 316566
7:29
Adrenergic Receptors: Types, Distribution, Mechanism, Agonist, Antagonist
📝 Find notes here: https://www.nonstopneuron.com/post/alpha-and-beta-adrenergic-receptors
🌐 Explore our entire animation video library: https://www.nonstopneuro...
📝 Find notes here: https://www.nonstopneuron.com/post/alpha-and-beta-adrenergic-receptors
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Adrenergic Receptors:
Adrenergic receptors are G protein-coupled receptors. Broadly they are divided into α, and β adrenergic receptors. α1 receptors are involved in vasoconstriction, contraction of smooth muscles in the genitourinary tract, glandular secretion, and gut relaxation. α2 receptors are involved in the inhibition of neurotransmitter release from nerve endings, decrease in sympathetic outflow, inhibition of insulin release, platelet aggregation, and vasoconstriction. β1 receptors are involved in the stimulation of heart activity, and the release of renin from JG cells in the kidney. β2 receptors cause bronchodilatation, vasodilatation, uterine relaxation, relaxation of the digestive tract, detrusor relaxation, and increased aqueous secretion.
Dr Vipul Navadiya
Chapters:
00:00 Title
00:04 Introduction and Types
00:43 Alpha-1 Adrenergic Receptors
01:51 Alpha-2 Adrenergic Receptors
03:18 Beta Adrenergic Receptors Introduction
03:37 Beta-1 Adrenergic Receptors
04:25 Beta-2 Adrenergic Receptors
05:19 Beta-3 Adrenergic Receptors
05:49 Summary
DISCLAIMER: This video is for education purposes only. Although every effort is made to ensure the accuracy of the material, viewers should refer to the appropriate regulatory body/authorized websites, guidelines, and other suitable sources of information as deemed relevant and applicable. In view of the possibility of human error or changes in medical science, any person or organization involved in the preparation of this work accepts no responsibility for any errors or omissions, or results obtained from the use of information in this video.
https://wn.com/Adrenergic_Receptors_Types,_Distribution,_Mechanism,_Agonist,_Antagonist
📝 Find notes here: https://www.nonstopneuron.com/post/alpha-and-beta-adrenergic-receptors
🌐 Explore our entire animation video library: https://www.nonstopneuron.com/
● Follow me at:
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• Facebook: https://www.facebook.com/NonstopNeuron
Adrenergic Receptors:
Adrenergic receptors are G protein-coupled receptors. Broadly they are divided into α, and β adrenergic receptors. α1 receptors are involved in vasoconstriction, contraction of smooth muscles in the genitourinary tract, glandular secretion, and gut relaxation. α2 receptors are involved in the inhibition of neurotransmitter release from nerve endings, decrease in sympathetic outflow, inhibition of insulin release, platelet aggregation, and vasoconstriction. β1 receptors are involved in the stimulation of heart activity, and the release of renin from JG cells in the kidney. β2 receptors cause bronchodilatation, vasodilatation, uterine relaxation, relaxation of the digestive tract, detrusor relaxation, and increased aqueous secretion.
Dr Vipul Navadiya
Chapters:
00:00 Title
00:04 Introduction and Types
00:43 Alpha-1 Adrenergic Receptors
01:51 Alpha-2 Adrenergic Receptors
03:18 Beta Adrenergic Receptors Introduction
03:37 Beta-1 Adrenergic Receptors
04:25 Beta-2 Adrenergic Receptors
05:19 Beta-3 Adrenergic Receptors
05:49 Summary
DISCLAIMER: This video is for education purposes only. Although every effort is made to ensure the accuracy of the material, viewers should refer to the appropriate regulatory body/authorized websites, guidelines, and other suitable sources of information as deemed relevant and applicable. In view of the possibility of human error or changes in medical science, any person or organization involved in the preparation of this work accepts no responsibility for any errors or omissions, or results obtained from the use of information in this video.
- published: 16 Aug 2022
- views: 87169
17:51
Pharmacology - ADRENERGIC RECEPTORS & AGONISTS (MADE EASY)
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https://www.patreon.com/speedpharmacology
Adrenergic agonists are a group of drugs that stimulate alph...
👉📖 READY TO ACE YOUR EXAM? 📚 GET STUDY NOTES ON PATREON!
https://www.patreon.com/speedpharmacology
Adrenergic agonists are a group of drugs that stimulate alpha and beta adrenergic receptors by mimicking the action of naturally occurring catecholamines such as norepinephrine, epinephrine and dopamine. This pharmacology lecture covers topics such as mechanism of action of adrenergic agonists; catecholamines, noncatecholamines, direct acting, indirect acting, mixed action; location and function of alpha and beta receptors. Adrenergic agonists mentioned include: Epinephrine, Norepinephrine, Dopamine, Oxymetazoline, Phenylephrine, Clonidine, Dobutamine, Albuterol, Terbutaline, Salmeterol, Formoterol, Mirabegron, Cocaine, Amphetamine, Ephedrine, Pseudoephedrine.
Thanks for watching and don't forget to SUBSCRIBE, hit the LIKE button👍 and click the BELL button🔔 for future notifications!!!
0:00 Intro
0:44 Adrenergic neuron
3:01 Adrenergic receptors
3:45 Alpha receptors
6:21 Beta receptors
8:22 Adrenergic agonists
10:20 Direct-acting agonists
15:53 Indirect-acting agonists
16:37 Mixed-action agonists
https://wn.com/Pharmacology_Adrenergic_Receptors_Agonists_(Made_Easy)
👉📖 READY TO ACE YOUR EXAM? 📚 GET STUDY NOTES ON PATREON!
https://www.patreon.com/speedpharmacology
Adrenergic agonists are a group of drugs that stimulate alpha and beta adrenergic receptors by mimicking the action of naturally occurring catecholamines such as norepinephrine, epinephrine and dopamine. This pharmacology lecture covers topics such as mechanism of action of adrenergic agonists; catecholamines, noncatecholamines, direct acting, indirect acting, mixed action; location and function of alpha and beta receptors. Adrenergic agonists mentioned include: Epinephrine, Norepinephrine, Dopamine, Oxymetazoline, Phenylephrine, Clonidine, Dobutamine, Albuterol, Terbutaline, Salmeterol, Formoterol, Mirabegron, Cocaine, Amphetamine, Ephedrine, Pseudoephedrine.
Thanks for watching and don't forget to SUBSCRIBE, hit the LIKE button👍 and click the BELL button🔔 for future notifications!!!
0:00 Intro
0:44 Adrenergic neuron
3:01 Adrenergic receptors
3:45 Alpha receptors
6:21 Beta receptors
8:22 Adrenergic agonists
10:20 Direct-acting agonists
15:53 Indirect-acting agonists
16:37 Mixed-action agonists
- published: 21 Sep 2016
- views: 2160755
1:05:50
Neurology | Adrenergic Receptors
Official Ninja Nerd Website: https://ninjanerd.org
Ninja Nerds!
During this lecture Professor Zach Murphy will lecture on adrenergic receptors and the organs t...
Official Ninja Nerd Website: https://ninjanerd.org
Ninja Nerds!
During this lecture Professor Zach Murphy will lecture on adrenergic receptors and the organs they will target when stimulated by norepinephrine, and epinephrine. Adrenergic receptors fall under two different categories which include alpha adrenergic receptors, and beta adrenergic receptors. This lecture will continue to build upon concepts learned during the sympathetic nervous system lecture. Please watch the sympathetic lecture in order to understand the concepts presented during this video. Please refer to the relevant lectures below. We hope you enjoy this lecture and be sure to support us below!
Sympathetic Nervous System:
https://www.youtube.com/watch?v=ITlKlDnyKfU
Parasympathetic Nervous System:
https://www.youtube.com/watch?v=F3U9pB5w0XM&t=25s
Autonomic Nervous System:
https://www.youtube.com/watch?v=7dZHmKMLdC0&t=25s
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#ninjanerd #AdrenergicReceptors #SympatheticNervousSystem
https://wn.com/Neurology_|_Adrenergic_Receptors
Official Ninja Nerd Website: https://ninjanerd.org
Ninja Nerds!
During this lecture Professor Zach Murphy will lecture on adrenergic receptors and the organs they will target when stimulated by norepinephrine, and epinephrine. Adrenergic receptors fall under two different categories which include alpha adrenergic receptors, and beta adrenergic receptors. This lecture will continue to build upon concepts learned during the sympathetic nervous system lecture. Please watch the sympathetic lecture in order to understand the concepts presented during this video. Please refer to the relevant lectures below. We hope you enjoy this lecture and be sure to support us below!
Sympathetic Nervous System:
https://www.youtube.com/watch?v=ITlKlDnyKfU
Parasympathetic Nervous System:
https://www.youtube.com/watch?v=F3U9pB5w0XM&t=25s
Autonomic Nervous System:
https://www.youtube.com/watch?v=7dZHmKMLdC0&t=25s
Join this channel to get access to perks:
https://www.youtube.com/channel/UC6QYFutt9cluQ3uSM963_KQ/join
APPAREL |
We are switching merchandise suppliers.
DONATE
PATREON | https://www.patreon.com/NinjaNerdScience
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SOCIAL MEDIA
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@NinjaNerdSci
DISCORD | https://discord.gg/3srTG4dngW
#ninjanerd #AdrenergicReceptors #SympatheticNervousSystem
- published: 28 Feb 2018
- views: 481260
0:56
Adrenergic Receptors Tips & Tricks to remember (Adrenergic recep mad Easy)#shorts
Adrenergic Receptors Tips & Tricks to remember (Adrenergic recep mad Easy)
#AlphaReceptors
#BetaReceptors
#mnemonics
#shorts
#youtubeshorts
Adrenergic Receptors Tips & Tricks to remember (Adrenergic recep mad Easy)
#AlphaReceptors
#BetaReceptors
#mnemonics
#shorts
#youtubeshorts
https://wn.com/Adrenergic_Receptors_Tips_Tricks_To_Remember_(Adrenergic_Recep_Mad_Easy)_Shorts
Adrenergic Receptors Tips & Tricks to remember (Adrenergic recep mad Easy)
#AlphaReceptors
#BetaReceptors
#mnemonics
#shorts
#youtubeshorts
- published: 08 Feb 2022
- views: 53812
20:19
Alpha vs. Beta Adrenergic Receptors - Autonomic Nervous System - Physiology and Pharmacology
Nicotinic vs Muscarinic Receptors.
Acetylcholine vs Nor-Epinephrine.
Cholinergic vs Adrenergic Fibers | Neurology..
💊 Pharmacology Lectures: https://www.medico...
Nicotinic vs Muscarinic Receptors.
Acetylcholine vs Nor-Epinephrine.
Cholinergic vs Adrenergic Fibers | Neurology..
💊 Pharmacology Lectures: https://www.medicosisperfectionalis.com/
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► 🩸 hematology videos: https://www.youtube.com/playlist?list=PLYcLrRDaR8_eoNz6dxXolh1XMEietcniU
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► 💪 Rheumatology https://www.youtube.com/playlist?list=PLYcLrRDaR8_ckdsow-7buX1rIzIEKfxZQ
--If you have joined my channel on youtube (the join button that's next to the subscribe button), then go to the "community tab" and you will find some member-only posts.
Thank you so much for supporting my channel! Love ❤️
Happy studying!!
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https://wn.com/Alpha_Vs._Beta_Adrenergic_Receptors_Autonomic_Nervous_System_Physiology_And_Pharmacology
Nicotinic vs Muscarinic Receptors.
Acetylcholine vs Nor-Epinephrine.
Cholinergic vs Adrenergic Fibers | Neurology..
💊 Pharmacology Lectures: https://www.medicosisperfectionalis.com/
😍🖼Animated Mnemonics (Picmonic): https://www.picmonic.com/viphookup/medicosis/
► 🧠 Physiology Playlist: https://www.youtube.com/watch?v=6qk_LTVXZ2w&list=PLYcLrRDaR8_eAjmngd289ghWijs2wfqnj&index=2&t=0s
► 🩸 hematology videos: https://www.youtube.com/playlist?list=PLYcLrRDaR8_eoNz6dxXolh1XMEietcniU
► 😍 Support me on Patreon: https://www.patreon.com/medicosis/
► 🥰 Support me on PayPal: https://www.paypal.me/perfectionalis/
► 😚 Join my Channel on YouTube: https://www.youtube.com/channel/UCl-J-ovSJhA3or73Q2uVpow/join
► 👨🏫 All of my premium courses are ON SALE: https://www.medicosisperfectionalis.com/
► ❤️ Cardiac Pharmacology: https://www.youtube.com/playlist?list=PLYcLrRDaR8_e3pM6ifeZDfNPlE3K4KF3J
► ❓If you have any questions, please email me at:
[email protected]
► 💪 Rheumatology https://www.youtube.com/playlist?list=PLYcLrRDaR8_ckdsow-7buX1rIzIEKfxZQ
--If you have joined my channel on youtube (the join button that's next to the subscribe button), then go to the "community tab" and you will find some member-only posts.
Thank you so much for supporting my channel! Love ❤️
Happy studying!!
😍🖼Animated Mnemonics (Picmonic): https://www.picmonic.com/viphookup/medicosis/ My Favorite Productivity App: https://airtable.com/invite/r/2zH40fus/
📊 My favorite Productivity Apps: https://airtable.com/invite/r/2zH40fus/ 📱Save on your mobile phone bill: http://fbuy.me/q6bMj 🏦 Qbank (TrueLearn): https://truelearn.referralrock.com/l/MEDICOSIS/
- published: 06 Nov 2020
- views: 193899
12:29
Alpha Adrenergic Receptor Types, Location, and Function [Alpha 1 and Alpha 2 Mechanism of Action]
Learn about the different types of alpha adrenergic receptors, their location, and their function in this video that makes adrenergic receptors easy.
Alpha an...
Learn about the different types of alpha adrenergic receptors, their location, and their function in this video that makes adrenergic receptors easy.
Alpha and beta adrenergic receptors are involved in generating a sympathetic fight or flight response when activated by catecholamines such as epinephrine and norepinephrine.
The different types of alpha adrenergic receptors are discussed in this video including: Alpha 1 receptors and Alpha 2 receptors. Learn where in the body they are located including blood vessels, prostate, bladder, stomach and GI tract, and in the eye.
Lastly, learn what the alpha adrenergic receptor function is to generate the fight or flight response.
_______________________________
Alpha Receptors:
🔸Lecture - https://www.ezmedlearning.com/blog/alpha-receptors
_______________________________
EZmed Content:
🔸Study Guides & Flashcards - https://www.ezmedlearning.com/store
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_______________________________
https://wn.com/Alpha_Adrenergic_Receptor_Types,_Location,_And_Function_Alpha_1_And_Alpha_2_Mechanism_Of_Action
Learn about the different types of alpha adrenergic receptors, their location, and their function in this video that makes adrenergic receptors easy.
Alpha and beta adrenergic receptors are involved in generating a sympathetic fight or flight response when activated by catecholamines such as epinephrine and norepinephrine.
The different types of alpha adrenergic receptors are discussed in this video including: Alpha 1 receptors and Alpha 2 receptors. Learn where in the body they are located including blood vessels, prostate, bladder, stomach and GI tract, and in the eye.
Lastly, learn what the alpha adrenergic receptor function is to generate the fight or flight response.
_______________________________
Alpha Receptors:
🔸Lecture - https://www.ezmedlearning.com/blog/alpha-receptors
_______________________________
EZmed Content:
🔸Study Guides & Flashcards - https://www.ezmedlearning.com/store
🔸Membership - https://www.ezmedlearning.com/member-area-study-guides
🔸Tutoring - https://www.ezmedlearning.com/medical-tutoring-services-online
🔸Freebies - https://www.ezmedlearning.com/join
_______________________________
Subscribe to socials for videos, notes and study guides!
🔸YouTube: https://www.youtube.com/channel/UCUigJdXAQTejK5yx8l03gLg/videos
🔸Instagram: https://www.instagram.com/ezmedlearning/
_______________________________
Thanks for watching!
🔸EZmed Website - https://www.ezmedlearning.com/
_______________________________
#nursing
#nclex
#usmle
#nursingstudent
#nursingschool
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_______________________________
- published: 28 Jun 2020
- views: 20887
4:48
Adrenergic Drugs - Pharmacology, Animation
(USMLE topics) Adrenergic receptors and drugs, agonists and antagonists, mechanisms of action.
Purchase a license to download a non-watermarked version of thi...
(USMLE topics) Adrenergic receptors and drugs, agonists and antagonists, mechanisms of action.
Purchase a license to download a non-watermarked version of this video on AlilaMedicalMedia(dot)com
Check out our new Alila Academy - AlilaAcademy(dot)com - complete video courses with quizzes, PDFs, and downloadable images.
Voice by: Ashley Fleming
©Alila Medical Media. All rights reserved.
All images/videos by Alila Medical Media are for information purposes ONLY and are NOT intended to replace professional medical advice, diagnosis or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition.
Adrenergic drugs are medications that stimulate (sympathomimetic) or inhibit (sympatholytic) adrenergic receptors. Adrenergic receptors mediate the action of noradrenaline, also known as norepinephrine; and adrenaline, also known as epinephrine. Adrenergic neurotransmission is responsible for the body’s sympathetic response - the “fight or flight” state - which dilates pupils, increases heart rate and respiratory rate, diverts blood flow to the muscles, inhibits activities that are not essential in emergency, and releases stored energy. Adrenergic receptors are also active in the central nervous system, in processes such as memory and alertness.
There are several types of adrenergic receptors, all of which are G-protein coupled, but they differ in several aspects:
- They couple with different G-proteins, leading to different downstream signalings, and hence different cellular responses.
- They differ in sensitivity to different drugs.
- While several receptors may coexist in the same tissue, there is usually one that predominates and is mainly responsible for the tissue’s adrenergic response. For example: alpha-1 receptor predominates in peripheral vascular smooth muscle – its activation induces vasoconstriction; beta-1 is prominent in the heart - it increases heart rate and cardiac contractility when activated; beta-2 activation results in bronchodilation in the lungs; and alpha-2 reduces sympathetic outflow in the brainstem. Alpha-2 can also act at the pre-synaptic neuron, where it inhibits neurotransmitter release, as a feedback mechanism.
Most adrenergic drugs act directly at the receptors, only a few act indirectly by promoting neurotransmitter release, or by preventing its degradation.
Non-specific drugs are those that can bind to several receptors. Non-specific agonists include epinephrine, norepinephrine and dopamine. Their relative activity via different receptors depends on the dose administered. For example, epinephrine has a greater affinity for beta receptors in small doses, but can bind to alpha receptors equally well at higher doses. At low levels, epinephrine preferentially binds to vascular beta-2-receptor and causes vasodilation. As the concentration of epinephrine increases, lower affinity alpha-receptors begin to bind epinephrine, producing vasoconstriction. Because there are more alpha-receptors than beta-receptors in peripheral blood vessels, alpha-mediated vasoconstriction eventually overrides beta-mediated vasodilation. Thus, at higher pharmacologic doses, epinephrine induces vasoconstriction via alpha receptors; increases heart rate, cardiac contractility via beta-1 receptor; and dilates bronchi via beta-2 receptor. Epinephrine is the treatment of choice for cardiac arrest, anaphylaxis, and severe croup.
Specific drugs target only a certain type of receptor:
- Alpha-1 specific agonists induce smooth muscle contraction and are used as vasopressors for treatment of shock, hypotension; as nasal decongestants; or to dilate pupils.
Alpha-1 antagonists, on the other hand, are used to treat hypertension, and to relax smooth muscle within the prostate for treatment of benign prostatic hyperplasia.
- Alpha-2 agonists act on alpha-2 receptors in the brainstem to reduce sympathetic tone, and are used to treat hypertension. Stimulation of peripheral alpha-2 receptors may initially cause vasoconstriction, but it is quickly overridden by the central effect.
- Beta-1 agonists increase heart rate and contractility, and are indicated for treatment of cardiogenic shock and heart failure.
- Beta-2 agonists relax smooth muscles. They are used to dilate bronchi, for treatment of asthma, obstructive pulmonary disease, and anaphylaxis. Some are used to relax uterine smooth muscle to delay preterm birth.
Beta antagonists, or beta blockers, are used for the treatment of hypertension, ischemic heart disease, obstructive cardiomyopathy, and arrhythmias.
https://wn.com/Adrenergic_Drugs_Pharmacology,_Animation
(USMLE topics) Adrenergic receptors and drugs, agonists and antagonists, mechanisms of action.
Purchase a license to download a non-watermarked version of this video on AlilaMedicalMedia(dot)com
Check out our new Alila Academy - AlilaAcademy(dot)com - complete video courses with quizzes, PDFs, and downloadable images.
Voice by: Ashley Fleming
©Alila Medical Media. All rights reserved.
All images/videos by Alila Medical Media are for information purposes ONLY and are NOT intended to replace professional medical advice, diagnosis or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition.
Adrenergic drugs are medications that stimulate (sympathomimetic) or inhibit (sympatholytic) adrenergic receptors. Adrenergic receptors mediate the action of noradrenaline, also known as norepinephrine; and adrenaline, also known as epinephrine. Adrenergic neurotransmission is responsible for the body’s sympathetic response - the “fight or flight” state - which dilates pupils, increases heart rate and respiratory rate, diverts blood flow to the muscles, inhibits activities that are not essential in emergency, and releases stored energy. Adrenergic receptors are also active in the central nervous system, in processes such as memory and alertness.
There are several types of adrenergic receptors, all of which are G-protein coupled, but they differ in several aspects:
- They couple with different G-proteins, leading to different downstream signalings, and hence different cellular responses.
- They differ in sensitivity to different drugs.
- While several receptors may coexist in the same tissue, there is usually one that predominates and is mainly responsible for the tissue’s adrenergic response. For example: alpha-1 receptor predominates in peripheral vascular smooth muscle – its activation induces vasoconstriction; beta-1 is prominent in the heart - it increases heart rate and cardiac contractility when activated; beta-2 activation results in bronchodilation in the lungs; and alpha-2 reduces sympathetic outflow in the brainstem. Alpha-2 can also act at the pre-synaptic neuron, where it inhibits neurotransmitter release, as a feedback mechanism.
Most adrenergic drugs act directly at the receptors, only a few act indirectly by promoting neurotransmitter release, or by preventing its degradation.
Non-specific drugs are those that can bind to several receptors. Non-specific agonists include epinephrine, norepinephrine and dopamine. Their relative activity via different receptors depends on the dose administered. For example, epinephrine has a greater affinity for beta receptors in small doses, but can bind to alpha receptors equally well at higher doses. At low levels, epinephrine preferentially binds to vascular beta-2-receptor and causes vasodilation. As the concentration of epinephrine increases, lower affinity alpha-receptors begin to bind epinephrine, producing vasoconstriction. Because there are more alpha-receptors than beta-receptors in peripheral blood vessels, alpha-mediated vasoconstriction eventually overrides beta-mediated vasodilation. Thus, at higher pharmacologic doses, epinephrine induces vasoconstriction via alpha receptors; increases heart rate, cardiac contractility via beta-1 receptor; and dilates bronchi via beta-2 receptor. Epinephrine is the treatment of choice for cardiac arrest, anaphylaxis, and severe croup.
Specific drugs target only a certain type of receptor:
- Alpha-1 specific agonists induce smooth muscle contraction and are used as vasopressors for treatment of shock, hypotension; as nasal decongestants; or to dilate pupils.
Alpha-1 antagonists, on the other hand, are used to treat hypertension, and to relax smooth muscle within the prostate for treatment of benign prostatic hyperplasia.
- Alpha-2 agonists act on alpha-2 receptors in the brainstem to reduce sympathetic tone, and are used to treat hypertension. Stimulation of peripheral alpha-2 receptors may initially cause vasoconstriction, but it is quickly overridden by the central effect.
- Beta-1 agonists increase heart rate and contractility, and are indicated for treatment of cardiogenic shock and heart failure.
- Beta-2 agonists relax smooth muscles. They are used to dilate bronchi, for treatment of asthma, obstructive pulmonary disease, and anaphylaxis. Some are used to relax uterine smooth muscle to delay preterm birth.
Beta antagonists, or beta blockers, are used for the treatment of hypertension, ischemic heart disease, obstructive cardiomyopathy, and arrhythmias.
- published: 22 Jun 2020
- views: 311354