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Novel compound heterozygous variants in the LHCGR gene identified in a subject with Leydig cell hypoplasia type 1

  • Yufei Xu , Yulin Chen , Niu Li , Xuyun Hu , Guoqiang Li , Yu Ding , Juan Li , Yiping Shen , Xiumin Wang EMAIL logo and Jian Wang EMAIL logo
Published/Copyright: January 6, 2018

Abstract

Background:

Leydig cell hypoplasia (LCH) is a rare disease and one of the causes of male disorder of sexual differentiation (DSD). Inactivating mutations in the luteinizing hormone/chorionic gonadotropin receptor (LHCGR) gene account for the underlying LCH pathogenicity. This study aimed to analyze the clinical presentation and diagnosis as well as highlight the molecular characteristics of a subject with LCH type 1.

Case presentation:

Clinical data were collected from the subject and analyzed. Next generation sequencing of the immediate family pedigree using peripheral blood genomic DNA was performed, and the relevant mutations were verified with Sanger sequencing. We describe the case of a 5-year-old patient with DSD, presenting with a lateral inguinal hernia accompanied by abnormal hormone tests. The genetic analysis revealed novel compound heterozygous variants in the LHCGR gene, including a splice site mutation (c.681-1 G>A) and a frameshift variant (c.1582_1585del ATAT, p.Ile528*).

Conclusions:

We identified novel compound heterozygous variants in the LHCGR gene, and expanded the genotype-phenotype correlation spectrum of LHCGR variants.


Corresponding authors: Dr. Xiumin Wang, Department of Endocrinology and Metabolism, Shanghai Children’s Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dongfang Road, Shanghai 200127, P.R. China, Fax: 86-21-58756923 and Department of Medical Genetics and Molecular Diagnostic Laboratory, Shanghai Children’s Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dongfang Road, Shanghai 200127, P.R. China

Acknowledgments

We would like to express our gratitude to the patient’s parents for their understanding and cooperation in this study. We are grateful to Dr. Jin Ma of Department of Pathology for histological specimen analysis.

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Employment or leadership: None declared.

  4. Honorarium: None declared.

  5. Competing interests: The funding organization(s) played no role in the study design; in the collection, analysis, and interpretation of data; in the writing of the report; or in the decision to submit the report for publication.

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Received: 2016-11-29
Accepted: 2017-11-17
Published Online: 2018-1-6
Published in Print: 2018-1-26

©2018 Walter de Gruyter GmbH, Berlin/Boston

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