hrp0098rfc8.2 | Adrenals and HPA Axis 2 | ESPE2024

A Novel Peroxisomal Cause of Primary Adrenal İnsufficiency: Pseudo-neonatal Adrenoleukodystrophy Due to ACOX1 Mutations.

Helvacioglu Didem , Tugba Canbaz Aylin , Tekmenuray-Unal Aysel , Yapici Özge , Genç Emine , Gurpinar Tosun Busra , Ozturk Hismi Burcu , Guran Tulay

Background: Human peroxisomal fatty acyl CoA oxidase 1, encoded by the ACOX1 gene, catalyzes the first and rate limiting step in the beta oxidation of straight chain fatty acids in the peroxisomes. Biallelic mutations in ACOX1 are associated with pseudo-neonatal adrenoleukodystrophy characterized by severe hypotonia, seizures, psychomotor retardation followed by neuroregression, and death in early childhood. To date, primary adrenal insuffici...

hrp0098p1-95 | Sex Endocrinology and Gonads 1 | ESPE2024

Phenotypes linked to duplication upstream of SOX9: New insights into presentation and diagnosis

Unal Edip , Tekmenuray Unal Aysel , Cayir Atilla , Deniz Papatya Cakir Esra , Beyazit Nurcan , Kolbasi Baris , Gurpinar Tosun Busra , Demirbilek Huseyin , Guran Tulay

Context: Duplications occurring upstream of the SOX9 gene have been identified in a limited subset of patients with 46,XX testicular/ovotesticular differences/disorders of sex development (DSD). However, comprehensive understanding regarding their clinical presentation and diagnosis is limited.Objective: To gain further insight into the diagnosis of a large cohort of 46,XX individuals with duplications upstream ...