The hyperphagia, low sympathetic nervous system tone, and decreased circulating concentrations of bioactive thyroid hormones that are common to states of congenital leptin deficiency and hypoleptinemia following and during weight loss suggest that the major physiological function of leptin is to signal states of negative energy balance and decreased energy stores. In weight-reduced humans, thes...

  Objective(s): Leptin is a hormone secreted by adipose tissue and is involved not only in the regulation of feeding and energy expenditure, but also its role in memory enhancement has been demonstrated as well. The partial transfer of leptin across the blood-brain barrier in obese individuals causes leptin resistance and prevents leptin reaching brain. On the other hand, studies have show...

Trombley, S. 2014. Regulation of Leptin by Sexual Maturation and Energy Status in Male Atlantic Salmon (Salmo salar L.) Parr. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 1151. 54 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-554-8956-4. Leptin is a peripheral adiposity signal and a key hormone in energy balance regulation in mam...

Absence of leptin is known to disrupt the development of energy balance regulatory mechanisms. We investigated whether administration of leptin to normally nourished rats affects energy balance in their offspring. Leptin (2 mg.kg(-1).day(-1)) was administered from day 14 of pregnancy and throughout lactation. Male and female offspring were fed either on chow or on high-fat diets that elicited s...

The purpose of the present study was to investigate the effect of endurance (ET), resistance (RT) and concurrent training (CT) on plasma levels of visfatin, insulin, glucose and insulin resistance of non-athlete men with Obesity. It was a semi-experimental study. Thirty six men [age: 21.48 (0.25), and BF%: 27.39 (0.52)], voluntarily participated in this study after public announcement in univer...

the aim of this study was to examine the concurrent consumption of creatine and resistance training on flexion strength of biceps brachii in female physical education students in their last semester. for this purpose, 30 students were randomly selected and divided into three groups: the experimental group 1 (age: 19.8 ± 1.4 yr, weight: 53.9 ± 4.4 kg, height: 162 ± 4.4 cm), experimental group 2 ...

The present study analysed the effect of protein restriction on serum insulin and leptin levels and their relationship with energy balance during lactation. Four groups of rats received isocaloric diets containing 170 g protein/kg or 60 g protein/kg from pregnancy until the 14th day of lactation: control non-lactating, control lactating (both fed a control diet), low-protein non-lactating and l...