It has been demonstrated that TSH receptors are expressed not only in thyroid gland but also in extrathyroidal tissues. Brown adipose tissue of guinea pig has been reported to express TSH receptor messenger RNA (mRNA), but the physiological roles of TSH receptors in brown adipose tissue have not been understood. We studied the expression and function of TSH receptors in rat brown adipose tissue...

The effects of insulin added in vitro on the metabolic fates of uniformly labeled glucose-14C in slices of rat interscapular brown adipose tissue were studied. Insulin strongly stimulated glucose uptake, lactate production, oxygen consumption, total carbon dioxide production, and conversion of uniformly labeled glucose-14C into fatty acids, glyceride-glycerol, carbon dioxide, and total lipids. ...

Background & Aims: Transforming white adipose tissue to brown adipose tissue is considered a solution to overcome undesirable effects of obesity in human beings. Thus, the aim of this research was to investigate the effect of eight weeks of high intensity interval training (HIIT) on serum amounts of fibroblast growth factor 21 (FGF21) and Irisin in sedentary obese women. Materials & Methods: T...

Adipose tissue is commonly categorized into three types with distinct functions, phenotypes, and anatomical localizations. White adipose tissue (WAT) is the major energy store; the largest depots of WAT are found in subcutaneous or intravisceral sites. Brown adipose tissue (BAT) is responsible for energy dissipation during cold-exposure (i.e., non-shivering thermogenesis) and is primarily locat...

The contention that brown adipose tissue is absent in adult man has meant that processes attributed to active brown adipose tissue in experimental animals (mainly rodents), i.e., classical nonshivering thermogenesis, adaptive adrenergic thermogenesis, diet-induced thermogenesis, and antiobesity, should be either absent or attributed to alternative (unknown) mechanisms in man. However, serendipi...

Brown adipose tissue and collagenase-isolated brown adipocytes were investigated in rats by means of 1H and 13C nuclear magnetic resonance spectroscopy. After chloroform-methanol extraction of brown adipose tissue, proton and natural abundance 13C spectra of the chloroform fraction showed resonances attributable to triglycerides, and were qualitatively similar to those of the corresponding frac...