Endocrine Abstracts

Background: Gender-affirming hormone treatment (GAHT) is the cornerstone in the therapeutic management of transgender and gender diverse (TGD) people, which are currently classified as transgender assigned-female-at birth (t-AFAB) and assigned-male-at birth (t-AMAB) subjects. Due to its hormonal nature, GAHT is commonly handled by the endocrinologist and available guidelines on this topic mimic the recommendations for cis-gender hypogonadal populations. However, the GAHT long ...

Currently, no treatment options exist to improve semen quality for the majority of infertile men. Proper interaction between germ and Sertoli cells in the testis is critical for sperm production, and a recent study suggested that Denosumab, an inhibitor of RANKL signaling, may stimulate sperm production in some infertile men. Here, we show in animal and human studies how expression of the RANKL signaling system is critical for both Sertoli cell function and the testicular resp...

Introduction: Polycystic ovary syndrome (PCOS) is associated with an increased risk of abdominal obesity, what is regulated by numerous genetic, epigenetic, and environmental factors. MicroRNAs (miRNAs) are known regulators of gene expression, involved in the development of metabolic disturbances. Dual-energy X-ray absorptiometry (DXA) is an accurate method of body composition analysis. The aim of the present study was to investigate the association between circulating miRNAs,...

Estradiol (E2), produced by granulosa cells (GCs) of ovarian follicles, plays an essential role in folliculogenesis by controlling follicular development and selection. E2 actions are principally mediated by the two nuclear receptors, ERα and ERβ. These two receptors are differently expressed in GCs, with ERβ being predominant. After ligand binding and receptor dimerization, ERα and ERβ mainly regulate gene transcription through direct interaction with...

In the ovary, the G protein-coupled estrogen receptor (GPER) forms heteromeric complexes with the follicle-stimulating hormone receptor (FSHR), reprogramming FSH-induced signals and determining the follicular fate. Based on the structural similarity, we evaluated whether GPER interacts with the luteinizing hormone (LH)/choriogonadotropin (hCG) receptor (LHCGR) modulating gonadotropin-dependent signals. LHCGR-GPER heteromers were evaluated in transiently transfected HEK293 cell...

Introduction: A growing body of evidence supports the possible association between the severity of climacteric symptoms and long-term cardiometabolic risk. We aimed to assess the possible link between the severity of hot flashes and the risk for cardiometabolic manifestations after the menopausal transition.Methods: This cohort study was conducted in the Menopause Clinic, National and Kapodistrian University of Athens, Aretaieio Hospital, Athens, Greece....