Pre- and postsynaptic GABA(B) receptors modulate rapid neurotransmission from suprachiasmatic nucleus to parvocellular hypothalamic paraventricular nucleus neurons.


The suprachiasmatic nucleus (SCN), the dominant circadian pacemaker in mammalian brain, sends axonal projections to the hypothalamic paraventricular nucleus (PVN), a composite of magno- and parvocellular neurons. This neural network likely offers SCN output neurons a means to entrain diurnal rhythmicity in various autonomic and neuroendocrine functions… (More)


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