... this hypothesis. Body fat mass had no correlations with cellular and humoral immunity, suggesting it was not the reason for seasonal changes in cellular and humoral immunity in males. Leptin titers were higher in spring and summer than in fall and winter. No correlation between leptin and cellular and humoral...

...Huixian Zhang; Geng Qin; Yanhong Zhang; Shuisheng Li; Qiang Lin ABSTRACT Leptin is an essential hormone for the regulation of energy metabolism and food intake in vertebrate animals. To better understand the physiological roles of leptin in nutrient regulation in paternal ovoviviparous fish (family...

...Xian-Jie Zheng; Zhong-Xin Yang; Yan-Jun Dong; Guo-Yu Zhang; Ming-Fei Sun; Xiao-Kang An; Li-Hong Pan; Shuang-Lin Zhang ABSTRACT Previous studies have documented that leptin is involved in the pathogenesis of many human cancer types by regulation of numerous signal transduction pathways. The aim...

...Alexander V. Sirotkin; Dušan Mertin; Karin Süvegová; Abdel Halim Harrath; Jan Kotwica ABSTRACT The aim of our study was to understand whether ovarian steroid hormones, and their response to the metabolic hormones leptin and IGF-I leptin, could be involved in the control of mink reproductive aging...