Endocrine Abstracts

Objective: To determine effectiveness of supplementing vitamin D alone vs vitamin D+ calcium on bone mass accrual in underprivileged Indian premenarcheal girls.Methods: A double blind, matched pair, cluster randomization study was carried out in 200 premenarcheal girls (8–12 years) from three public schools. The participants were randomized into two clusters and were allocated to receive either vitamin D (Group A): 30 000 IU oral cholecalciferol eve...

Introduction: Vitamin D (VD) is metabolized locally in the testis, and ablation of the VD receptor (Vdr−/−) in mice has proven a valid model for hereditary VD resistant rickets. However, only one of three published Vdr−/− strains presented with male infertility. Here, we investigated reproductive hormones, gene expression and the testicular histological phenotype of male Vdr−/−mice,...

Progressive osseous heteroplasia (POH) is a rare autosomal dominant disorder of mesenchymal differentiation characterized by progressive heterotopic ossification (HO) of dermis, skeletal muscle and deep connective tissues. Initially HO occurs during infancy as osteoma cutis, then extends progressively into deep connective tissues during childhood. Most cases of POH are caused by paternally inherited mutations of GNAS gene. Maternal mutations as well as epigentic defec...

Introduction: Low energy trauma fractures are prevalent in end-stage liver disease and after orthotopic liver transplantation (OLT). However, data on bone mineral density (BMD) are scarce in these patients. In this study, we evaluated the natural course of changes in BMD after successful OLT.Study design: All recipients of a successful OLT between 2000 and 2011 from the Leiden University Medical Centre, in whom BMD data were available, were included. Pat...

Primary hyperparathyroidism (PHPT) is usually a sporadic disorder, but in <10% of cases occurs as part of hereditary syndromes, including multiple endocrine neoplasia types 1 and 2A (MEN1 and MEN2A), hyperparathyroidism-jaw tumor syndrome (HPT-JT) and familial isolated hyperparathyroidism (FIHP).MEN 1 is an autosomal dominant disorder characterized by tumours in multiple endocrine glands, most commonly parathyroid, enteropancreatic and anterior pitui...

MIH for Molar Incisor Hypomineralization is a recently described pathology affecting around 18% of six year old children. Although a number of putative factors have been hypothesized, etiology of MIH remains unknown. The parallel increase of exposure to endocrine disruptors (EDs) and the prevalence of MIH led us to investigate a possible relationship between both events.Rats were orally exposed daily to low dose of bisphenol A (BPA), genistein, vinclozol...