نتایج جستجو برای: plasma acylated ghrelin and pyy3
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Introduction: Ghrelin is a peptide which is secreted from human stomach. It has an important role in the secretion of growth hormone, energy balance, obesity, food intake behavior, and some cardiovascular functions. The purpose of this study was to assess the effects of an eight-week of aerobic exercise on plasma concentration of ghrelin and GH in non-athletic young women. Methods: Twenty youn...
BACKGROUND Prader-Willi syndrome (PWS) is a rare genetic neurodevelopmental disorder with different nutritional phases from suckling deficit with failure to thrive to early onset of obesity. Hyperghrelinemia has been described in PWS long before the development of obesity. Ghrelin is found in both acylated (AG) and unacylated (UAG) forms in the circulation. In contrast to AG, UAG has been shown...
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Emerging evidence implicates ghrelin, a gut-derived, orexigenic hormone, as a potential mediator of insulin-responsive peripheral tissue metabolism. However, in vitro and in vivo studies assessing ghrelin's direct influence on metabolism have been controversial, particularly due to confounding factors such as the secondary rise in growth hormone (GH) after ghrelin injection. Skeletal muscle is ...
OBJECTIVE Ghrelin is produced by the stomach, hypothalamus and pituitary. It circulates as acylated ghrelin (AG, which stimulates growth hormone (GH) secretion) and unacylated ghrelin (UAG). Acylation is mediated by the enzyme ghrelin O-acyltransferase (GOAT). In mice, pregnancy is associated with a marked increase in circulating pituitary GH. We investigated the role of AG and UAG in the surge...
High-intensity exercise has been shown to elicit a transient suppression of appetite and create a more anorexigenic profile of appetite-associated hormones. It is yet to be fully elucidated whether such a response is observed following very low-volume, intermittent exercise at supramaximal intensity in those who are overweight. Eight overweight individuals (BMI 27.7 ± 1.7 kg·m²) completed resti...
Ghrelin is a 28 amino acid, appetite-stimulating peptide hormone secreted by the food-deprived stomach. Serine-3 of ghrelin is acylated with an eight-carbon fatty acid, octanoate, which is required for its endocrine actions. Here, we identify GOAT (Ghrelin O-Acyltransferase), a polytopic membrane-bound enzyme that attaches octanoate to serine-3 of ghrelin. Analysis of the mouse genome revealed ...
Background and purpose: Ghrelin, a natural ligand of the growth hormone secretagogue receptor plays a major role in regulation of appetite, body fat mass, and energy balance in the body. The aim of this study was to evaluate the effects of maternal diabetes on circulatory ghrelin levels in rat newborns. Materials and methods: In this experimental study, female Wistar rats were allocated into d...
Background & Objectives: Ghrelin and peptide YY are orexigenic and anorexigenic peptides, respectively. They affect feeding behaviours and play a pivotal role in energy balance and glucose homeostasis. Resistance training is a key component of physical activity guidelines for weight control however, there is limited information on the effects of different intensities of circuit training on...
introduction: ghrelin is a potent orexigenic agent in rodents and humans. some studies have shown that ghrelin participates in the adaptive response to weight loss and plasma concentration of ghrelin rises with dieting. on the other hand, weight loss and fasting is accompanied by increased levels of epinephrine and cortisol. in this study, we investigated the effects of epinephrine and cortisol...
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