orexigenic


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Related to orexigenic: anorexigenic
Translations

o·rex·i·gen·ic

a. orexígeno-a, que estimula el apetito.
References in periodicals archive ?
Additionally, ghrelin is an orexigenic factor that increases food intake and plays an important role in energy and glucose homeostasis (Peter & Chang, 1999; Nakazato et al.
A direct orexigenic projection from LH to raphe pallidus activates its efferents to premotor sympathetic neurons in the spinal intermediolateral nucleus.
The drive for hunger is stimulated by the orexigenic hormone ghrelin whereas satiety is stimulated by anorexigenic hormones including peptide YY (PYY), glucagon-like peptide 1 (GLP-1) and pancreatic polypeptide (PP).
Within the ARC, there are two types of neuropeptides: orexigenic neuropeptides: neuropeptide Y (NPY) and agouti-related protein (AgRP); and anorectic neuropeptides: pro-opiomelanocortin (POMC) and cocaine- and amphetamine-regulated tran-script (CART); the balance between NPY/AgRP and POMC/CART expressions can inhibit food intake and stimulate energy expenditure (Friedman and Halaas, 1998).
As in mammals, a population of neurons that influence appetite exist in the hypothalamus of avian species: Orexigenic neurons (e.
Some neurons are orexigenic and stimulate or increase appetite, while others are anorexigenic and suppress appetite by promoting satiety.
Furthermore, increased levels of the orexigenic hormone ghrelin has also been associated with sleep deprivation (Spiegel et al.
Ghrelin is the only known orexigenic, or appetite-stimulating, hormone.
In addition, ghrelin can directly stimulate [beta]-cell proliferation in vivo without exerting its orexigenic or GH-stimulating properties in a streptozotocin- (STZ-) induced diabetic rat model [16].
1999) Orexins, orexigenic hypothalamic peptides, interact with autonomic, neuroendocrine and neuroregulatory systems.
When fat stores are reduced and energy levels are low, hunger signals mediated via an increase in the gut hormone, ghrelin, and reductions in insulin, glucose, leptin and cholecystokinin (CCK) cause increases in the activity of both neuropeptide Y (NPY) and agouti-related protein (AgRP) neurons, which in turn leads to decreased activity of the melanocortin system, leading to disinhibition of melanin concentrating hormone (MCH) and orexin (ORX) signalling producing a marked orexigenic effect.
In studies on nesfatin and exercise, it has been reported that heavy, continuous physical exercise compresses/reinforces orexigenic (AgRP, NPY, and ghrelin) and anorexigenic peptide/protein (obestatin, leptin, POMS, CART, and visfatin) secretion and concentration in central and peripheral tissues (3-6).