Endocrine Abstracts

Introduction: Thyroid hormones and irisin increase energy expenditure and induce browning of adipose tissue. However, little is known about irisin physiology and regulation. Here we aim to elucidate whether thyroid hormones alter circulating irisin concentrations in humans.Design and subjects: One cross-sectional (case-control) evaluation and two interventions were performed independently from each other, including previously thyroidectomized patients. C...

Objective: Vitamin D is a multifunctional hormone with possible antitumor effects. Its exact role in breast carcinogenesis remains largely unknown. We evaluated serum vitamin D levels in female patients with recently identified benign or malignant lesions of the breast and its associations with tumor histology.Subjects-methods: One hundred sixty women with suspicious breast masses that required surgical excision were included in this study. Body composit...