Genome sequencing reveals novel causative structural and single nucleotide variants in Pakistani families with congenital hypogonadotropic hypogonadism

期刊论文
出版模式：

开放获取
发表日期：

2024年8月14日

查看全文

Yassine Zouaghi,
Anbreen Mazhar Choudhary,
Saba Irshad,
Michela Adamo,
Khaleeq ur Rehman,
Ambrin Fatima,
Mariam Shahid,
Nida Najmi,
Fernanda De Azevedo Correa,
Imen Habibi,
Alexia Boizot,
Nicolas J. Niederländer,
Muhammad Ansar,
Federico Santoni,
James Acierno,
Nelly Pitteloud

摘要

Background/Objectives

This study aims to elucidate the genetic causes of congenital hypogonadotropic hypogonadism (CHH), a rare genetic disorder resulting in GnRH deficiency, in six families from Pakistan.

Methods

Eighteen DNA samples from six families underwent genome sequencing followed by standard evaluation for pathogenic single nucleotide variants (SNVs) and small indels. All families were subsequently analyzed for pathogenic copy number variants (CNVs) using CoverageMaster.

Results

Novel pathogenic homozygous SNVs in known CHH genes were identified in four families: two families with variants in GNRHR, and two others harboring KISS1R variants. Subsequent investigation of CNVs in the remaining two families identified novel unique large deletions in ANOS1.

Conclusion

A combined, systematic analysis of single nucleotide and CNVs helps to improve the diagnostic yield for variants in patients with CHH.