词汇 | ghrelin |
释义 | ghrelin noun[ U ] biology specializeduk /ˈɡrel.ɪn/ us /ˈɡrel.ɪn/ a hormone(= a chemical made in the body) that makes you hungry: (让人产生饥饿感的)脑肠肽,饥饿激素 When ghrelin levels are up, people feel hungry.当饥饿激素水平上升时,人们会感到饥饿。 In experiments, sleep-deprived adults produced more ghrelin.在实验中,睡眠不足的成年人会产生更多的脑肠肽。 Compare leptin The more ghrelin in your stomach, the more you want to eat. Ghrelin is an appetite-stimulating hormone released mostly by the stomach. Ghrelin's potential hasn't escaped the attention of the pharmaceutical industry. Biochemistry adipose adrenalin albumin aldosterone amino acid endonuclease endorphin enzymatic enzymatically enzyme mRNA mycoprotein non-enzymatic nuclease nucleic acid spike protein T level testosterone trace element transfer RNA Examples of ghrelinghrelin In the present study, we investigated ghrelin and leptin responses to food ingestion in patients with bulimia nervosa. These data indicate that circulating ghrelin changed significantly across sampling times and that the bulimic and control groups displayed differences over the samplings. Circulating ghrelin levels are decreased in human obesity. Ghrelin is a growth-hormone-releasing acylated peptide from stomach. Ghrelin strongly stimulates growth hormone release in humans. Food fails to suppress ghrelin levels in obese humans. These data suggest that ghrelin acts as a peripheral orexigenic peptide that is involved in the regulation of energy balance and feeding behaviour. Increased fasting plasma ghrelin levels in patients with bulimia nervosa. All these findings suggest that ghrelin is a starvation-related hormone functioning as an indicator of shortterm changes in the energy balance. The novel hypothalamic peptide ghrelin stimulates food intake and growth hormone secretion. They report a new finding, blunting of the normal marked ghrelin decrease in bulimic women compared with healthy controls. A variation in the ghrelin gene increases weight and decreases insulin secretion in tall, obese children. Moreover, we observed that, in untreated symptomatic bulimic women, the suppression of circulating ghrelin by food intake was significantly blunted. Moreover, no significant correlation emerged between preprandial plasma ghrelin concentrations and its maximum percent decrease after the meal. In healthy women, circulating ghrelin exhibited a drastic decrease after the food intake whereas, in bulimic patients, this response was significantly blunted. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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