The dentate gyrus is part of the hippocampus and/or hippocampal formation, as some texts include the latter structure in the former or vice versa. The dentate gyrus is thought to contribute to the formation of new episodic memories, the spontaneous exploration of novel environments, and other functions. It is notable as being one of a select few brain structures currently known to have high rates of neurogenesis in adult rats (other sites include the olfactory bulb and cerebellum).
Granule cells within the molecular layer of the dentate gyrus receive the hippocampal formation's major excitatory input from the cortex. This input is primarily made up of signals from layer II of the entorhinal cortex and is the first connection of the trisynaptic loop, the hippocampal circuit.
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pattern completion).” ... Additionally, magnetic resonance imaging (MRI) scans were conducted to measure the volumes of different hippocampal subfields, specifically the cornu ammonis (CA) regions CA1 and CA3, and the dentate gyrus ... ” ... ....
The hippocampus stores the emotional responses to the time and place (when and where) that the emotionally charged event took place in the dentate gyrus, an area inside the hippocampi, while the ...
Neuronal activation was assessed by measuring the expression of c-Fos, a protein often used as a marker of neuronal activity, in brain areas associated with stress and anxiety such as the basolateral amygdala and the dentate gyrus of the hippocampus.
Read more. Folia Parasitologica ... Full Text Latent toxoplasmosis impairs learning and memory yet strengthens short-term and long-term hippocampal synaptic plasticity at perforant pathway-dentate gyrus, and Schaffer collatterals-CA1 synapses ... .
... of lipid peroxidation, carbon-centered lipid radicals, and single-strand DNA damage, resulting in impaired neurogenesis in the hippocampal region and neuronal degeneration in the dentate gyrus region.
“Results indicate that short-term acute exposure to RF-EMR induced the generation of carbon-centered lipid radicals and nuclear DNA damage, both of which likely played a role in the impaired ...
... so his research will evaluate excitatory projections from what’s called the supramammillary nucleus, or SuM, of the hypothalamus that activate the dentate gyrus, or DG, subfield of the hippocampus.
Oxytocin ... Findings ... This enhancement was linked to increased activity in both the supramammillary nucleus (SuM) and the dentate gyrus (DG) of the hippocampus — areas of the brain known to be involved in memory formation and retrieval ... ....
Memories of things they do often, like eating or taking medication, become tangled in their minds.The ability to distinguish between similar memories depends on a tiny strip of brain tissue called the dentate gyrus.
\nThe ability to distinguish between similar memories depends on a tiny strip of brain tissue called the dentate gyrus. Studies in mice have shown that the dentate gyrus is one of the few bits of the brain to generate new neurons even in adulthood.
Such preservation of neural connections could imply a better maintenance of certain cognitive abilities as one ages ... The researchers utilized a retrovirus to mark neural stem cells in the dentate gyrus region of the brain ... ....
The researchers found interactions for the apnea-hypopnea index with entorhinal, whole hippocampal, subiculum, Cornu Ammonis (CA)1, and dentate gyrus volumes, with higher sleep apnea severity related ...
The Eagle-Tribune
01 Dec 2023
The Eagle-Tribune
01 Dec 2023