hrp0094p2-490 | Thyroid | ESPE2021

Thyroid dyshormonogenesis: a case report of two siblings with a heterozygous variant in the TPO gene.

Vadina Tatiana , Konushova Marina , Eremyan Aikaz , Shreder Ekaterina , Nagaeva Elena , Zaharova Svetlana , Degtyarev Michael , Bezlepkina Olga

Background: Congenital hypothyroidism (CH) is an inborn disease with an incidence rate of 1 case per 3,600 newborns of which 15-20% cases are associated with thyroid dyshormonogenesis. The TPO gene encodes thyroid peroxidase. Disease associated with this gene is usually transmitted in an autosomal recessive mode. Hypothyroidism-associated TPO variants are usually biallelic, limited evidence for cases in patients with heterozygous variants exists.Method...

hrp0095p1-197 | Thyroid | ESPE2022

A familial case of PAX8 gene variant with incomplete penetrance

Shreder Ekaterina , Vadina Tatiana , Solodovnikova Ekaterina , Shiryaeva Tatyana , Konuhova Marina , Dmitrieva Maria , Bogdanov Viktor , Nagaeva Elena , Bezlepkina Olga

Background: The PAX8 gene (Paired box gene 8) is located on the long arm of chromosome 2 (2q12–q14), contains 12 exons and encodes a similarly named PAX8 protein. This protein is a transcription factor which in the thyroid gland is essential for the follicular cells formation and takes part in the expression of the thyroid-specific genes (TG, TPO, and SLC5A5). Variants in the gene have been previously associated with autosomal dominant thyroid dysgenesis...