hrp0094p1-17 | Bone A | ESPE2021

Clinical Spectrum of Hypomagnesemia type 1 (HOMG1) due to Novel TRPM6 mutations

Aftab Sommayya , Anjum Muhammad Nadeem , Saeed Anjum , Shaheen Tahir , Cheema Huma Arshad ,

Background: Hypomagnesemia type 1 (HOMG1) is a rare autosomal recessive condition due to TRPM6 mutation, leading to decrease intestinal magnesium absorption.Objective: To determine the clinical spectrum of HOMG1 due to TRPM6 mutation at a tertiary centre.Case Series: Seven patients (all male) from six different families of hypomagnesemia type 1 due to homozygous TRPM6 mut...

hrp0094p2-45 | Adrenals and HPA Axis | ESPE2021

A Rare Coexistence of two autosomal recessive conditions: Congenital Adrenal Hyperplasia due to 21-Hydroxylase Deficiency (CYP21A2 mutation) with Beta Thalassemia Major

Aslam Aniqa , Aftab Sommayya , Shaheen Tahir , Anjum Muhammad Nadeem , Saeed Anjum , Cheema Huma Arshad ,

Background & Aim: Congenital adrenal hyperplasia (CAH) due to 21-hydroxylase deficiency is an autosomal recessive condition characterized by inadequate production of cortisol and aldosterone and accumulation of androgens. Beta thalassemia is an autosomal recessive condition caused by defective beta-globin resulting in accumulation of unbound alpha globin chains leading to ineffective erythropoiesis. We are reporting an unusual case of CAH due to 21-hydroxy...

hrp0094p2-63 | Bone, growth plate and mineral metabolism | ESPE2021

Diagnostic Challenges of Vitamin D-Dependent Rickets Type 1A (VDDR1A) caused by CYP27B1 mutation in Resource Limited Countries: A Case Series from Three families

Aftab Sommayya , Shaheen Tahir , Nadeem Anjum Muhammad , Imran Ahmed , Saeed Anjum , Ali Qureshi Abid , Cheema Huma Arshad ,

Background & Aim: Vitamin D-dependent rickets type 1 A (VDDR1A) is an autosomal recessive condition caused by mutation in CYP27B1, which encodes 1 α-hydroxylase enzyme that catalyzes the conversion of 25-hydroxyvitamin D (25OHD) to 1,25-dihydroxyvitamin D (1,25 (OH)2D). We are reporting 4 cases of VDDR1A due to CYP27B1 mutation initially misdiagnosed as vitamin D deficient and hypophosphatemic rickets.<p class="abstext...