Reciprocal Hunger-Regulating Circuits Involving Alpha-and Beta-Adrenergic Receptors Located, Respectively, in the Ventromedial and Lateral Hypothalamus
نویسندگان
چکیده
منابع مشابه
Regulation of alpha and beta adrenergic receptors in man.
The sympathetic nervous system is an important regulator of the functional activities of organs such as the heart and peripheral vasculature, and also plays a vital role in modulating responses to stress. The ultimate effects of sympathetic stimulation are mediated by release of noradrenaline (norepinephrine) from nerve terminals which serves to activate the adrenergic receptors at post-synapti...
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OBJECTIVE Norepinephrine is locally released into the ventromedial hypothalamus (VMH), a key brain glucose-sensing region in the response to hypoglycemia. As a result, this neurotransmitter may play a role in modulating counterregulatory responses. This study examines whether norepinephrine acts to promote glucose counterregulation via specific VMH β-adrenergic receptors (BAR). RESEARCH DESIG...
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It has been shown that those factors which affect gastric acid secretion through the ventromedial and lateral nuclei of hypothalamus, can significantly alter centrally-mediated secretion. There is much evidence that glucose is among these factors that through a central mechanism can decrease induced acid secretion. It appears that this effect is mediated through glucose-sensitive neurons within...
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Methamphetamine (MA) consumption causes disruption of many biological rhythms including the sleep-wake cycle. This circadian effect is seen shortly following MA exposure and later in life following developmental MA exposure. MA phase shifts, entrains the circadian clock and can also alter the entraining effect of light by currently unknown mechanisms. We analyzed and compared immunoreactivity o...
متن کاملRole of beta-adrenergic receptors in the ventromedial prefrontal cortex during contextual fear extinction in rats.
It has been reported that stress-related activation of the noradrenergic system strengthens the formation of aversive memories and that beta-adrenergic receptors seem to be involved in this emotional memory processing. In this study, the effects of beta-adrenergic compounds on the extinction of contextual conditioned fear responses were evaluated. Rats were trained with footshock in a condition...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1970
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.67.2.1063