A 29 Mainland Chinese cohort of patients with Phelan-McDermid syndrome: genotype-phenotype correlations and the role of SHANK3 haploinsufficiency in the important phenotypes.

ABSTRACT:

Background

Phelan-McDermid syndrome (PMS) or 22q13 deletion syndrome is a rare developmental disorder characterized by hypotonia, developmental delay (DD), intellectual disability (ID), autism spectrum disorder (ASD) and dysmorphic features. Most cases are caused by 22q13 deletions encompassing many genes including SHANK3. Phenotype comparisons between patients with SHANK3 mutations (or deletions only disrupt SHANK3) and 22q13 deletions encompassing more than SHANK3 gene are lacking.

Methods

A total of 29 Mainland China patients were clinically and genetically evaluated. Data were obtained from medical record review and a standardized medical history questionnaire, and dysmorphology evaluation was conducted via photographic evaluation. We analyzed 22q13 deletions and SHANK3

SUBMITTER: Xu N 

PROVIDER: S-EPMC7708101 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature