Glial cells are active partners of neurons that regulate the arrangement of neuronal circuits in specific brain regions.
Corticospinal motor neurons are the brain neurons that control the most precise aspects of voluntary movement.
To determine whether VLPOGAL neurons influence brain regions that regulate sleep-wake behavior and Tb, we unilaterally microinjected the VLPO of GAL-IRES-cre mice (n = 8) with a Cre-dependent adeno-associated viral vector (AAV) coding for channelrhodospsin-2 (ChR2) and mCherry (AAV8-EF1α-DIO-ChR2-mCherry, hereafter 'AAV-ChR2' 26,27,28.
Diano and her research team designed the study to help understand how neurons in the brain that regulate appetite affect systemic glucose levels.
These results indicate that VLPOGAL neurons have projections that may allow them to influence many brain regions that regulate both sleep-wake behavior and Tb.
Finally, we use optogenetic stimulation and multicircuit recording techniques concurrently in Thy1-Chr2 mice to demonstrate that activation of cortical projection neurons entrains neural oscillatory activity and drives synchrony across limbic brain areas that regulate affect.
But because histamine neurons communicate with neurons in other areas of the brain that regulate wakefulness, the researchers say their findings are consistent with an important role in maintaining mental alertness, they report in the 27 May issue of Neuron.
This decrease, which occurs primarily in a region of the brain called the substantia nigra, has been attributed to the loss of so-called dopaminergic neurons that normally synthesize and use dopamine to communicate with other neurons in parts of the brain that regulate motor function.
A marked decrease in the level of dopamine, a major neurotransmitter, has been noted in the brains of patients with Parkinson's disease, and this change has been attributed to the loss of so-called dopaminergic neurons that normally synthesize and use dopamine to communicate with other neurons in parts of the brain that regulate motor function.
