نتایج جستجو برای: regulates leptin in ovariectomized rat

تعداد نتایج: 17040355  

Journal: :Hypertension 2014
Dan Wang Cheng Wang Xie Wu Wei Zheng Kathryn Sandberg Hong Ji William J Welch Christopher S Wilcox

Ovarian hormone loss increases reactive oxidative species, endothelial dysfunction, and cardiovascular disease. Because perivascular adipose tissue (PVAT) regulates endothelial function, we hypothesized that reactive oxidative species in PVAT mediate adverse microvascular effects of ovarian hormone deficiency. Rats were ovariectomized or sham operated and given vehicle or tempol for 6 weeks. Me...

Journal: :Neuroendocrinology 1999
E Carro R M Señarís L M Seoane L A Frohman A Arimura F F Casanueva C Diéguez

Leptin is a hormone secreted by the adipocytes that regulates food intake and energy expenditure. It is known that growth hormone (GH) secretion is markedly influenced by body weight, being suppressed in obesity and cachexia, and recent data have demonstrated that GH release is regulated by leptin levels. Although one of the sites of action of leptin is likely to be the hypothalamus, since lept...

Journal: :American journal of physiology. Endocrinology and metabolism 2005
Matthew R Ricci Mi-Jeong Lee Colleen D Russell Yanxin Wang Sean Sullivan Stephen H Schneider Robert E Brolin Susan K Fried

In vivo and in vitro studies indicate that beta-adrenergic receptor agonists decrease leptin release from fat cells in as little as 30 min. Our objective was to determine whether alterations in leptin biosynthesis or secretion were involved in the short-term adrenergic regulation of leptin in human and rat adipose tissue. Isoproterenol (Iso) decreased leptin release from incubated adipose tissu...

Journal: :The Journal of pharmacology and experimental therapeutics 2000
C S Yuan A S Attele L Dey J T Xie

Cholecystokinin (CCK) is a major gastrointestinal neuropeptide that is secreted in response to food ingestion. It is involved in the feedback regulation of gastric emptying and also modulates food intake. Leptin, a hormone that regulates food intake and energy balance, is secreted from adipose tissue, gastric mucosa, fundic glands, and other tissues. In a previous report we showed that gastric ...

2012
Dayne Beccano-Kelly Jenni Harvey

It is well established that the hormone leptin circulates in the plasma in amounts proportional to body fat content and it regulates food intake and body weight via its actions in the hypothalamus. However, numerous studies have shown that leptin receptors are widely expressed throughout the CNS and evidence is growing that leptin plays a role in modulating a variety of neuronal processes. In p...

Journal: :The Biochemical journal 2011
Jeffrey A Handy Ping P Fu Pradeep Kumar Jamie E Mells Shvetank Sharma Neeraj K Saxena Frank A Anania

Adiponectin is protective against hepatic fibrosis, whereas leptin promotes fibrosis. In HSCs (hepatic stellate cells), leptin signals via a JAK2 (Janus kinase 2)/STAT3 (signal transducer and activator of transcription 3) pathway, producing effects that enhance ECM (extracellular matrix) deposition. SOCS-3 (suppressor of cytokine signalling-3) and PTP1B (protein tyrosine phosphatase 1B) are bot...

Journal: :Endocrinology 2002
Karine Rousseau Zeenat Atcha Felino Ramon A Cagampang Philippe Le Rouzic J Anne Stirland Tina R Ivanov Francis J P Ebling Martin Klingenspor Andrew S I Loudon

Seasonal Siberian hamsters lose fat reserves, decrease body weight and leptin concentrations, and suppress reproduction on short-day photoperiod (SD). Chronic leptin infusion at physiological doses caused body weight and fat loss in SD animals but was ineffective in long-day (LD) hamsters. Using ovariectomized estrogen-treated females, we tested the hypothesis that responsiveness to leptin is r...

2015
Fatemeh Sabet Sarvestani Amin Tamadon Aida Hematzadeh Maliheh Jahanara Mohammad Reza Jafarzadeh Shirazi Ali Moghadam Ali Niazi Reza Moghiminasr

OBJECTIVE Melanocortin-4 receptor (MC4R) and agouti-related peptide (AgRP) are involved in energy homeostasis in the rat. The aim of the present study was to evaluate the expression of MC4R and AgRP mRNAs in arcuate nucleus (ARC) during long term malnutrition of female ovariectomized rats. MATERIALS AND METHODS Ten female ovariectomized rats were divided into two equal groups (n=6) of normal ...

Journal: :Food Science and Human Wellness 2023

Lipid metabolism disorders commonly occur during menopause. Estrogen deficiency has been shown to lead excessive energy intake and abnormal lipid in ovariectomized rats, resulting obesity. Probiotics exhibit anti-obesity properties, their underlying mechanism widely reported. In this study, we demonstrated the metabolic benefits of Lactobacillus plantarum CCFM1180 suppressing appetite, c...

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