Background: Pontocerebellar hypoplasia is an autosomal recessive and neurodegenerative disorder divided into sixteen subtypes. type 2B (PCH2B) shows microcephaly combined with epilepsy extrapyramidal dyskinesia chorea due to different homozygous or compound heterozygous pathogenic mutations in the TSEN2 gene. Objectives: This study was aimed find mutation responsible for pontocerebellar two fam...

PURPOSE To characterize mutations within the carbohydrate sulfotransferase 6 (CHST6) gene in Iranian subjects from 12 families with macular corneal dystrophy (MCD). METHODS Genomic DNA was extracted from peripheral blood of 20 affected patients and 60 healthy volunteers followed by polymerase chain reaction (PCR) and direct sequencing of the CHST6 coding region. The observed nucleotide sequen...

Background: Tay-Sachs disease (TSD), or GM2 gangliosidosis, is a lethal autosomal recessive neurodegenerative disorder, which is caused by a deficiency of beta-hexosaminidase A (HEXA), resulting in lysosomal accumulation of GM2 ganglioside. The aim of this study was to identify the TSD-causing mutations in‌ an Iranian population. Methods: In this study, we examined 31 patients for TSD-causing m...

introduction: autosomal dominant polycystic kidney disease (adpkd) is one of the most common genetic kidney disorders with the incidence of 1 in 1,000 births. adpkd is genetically heterogeneous with two genes identified: pkd1 (16p13.3, 46 exons) and pkd2 (4q21, 15 exons). eighty five percent of the patients with adpkd have at least one mutation in the pkd1 gene. genetic studies have demonstrate...

OBJECTIVES The aim of this study was to detect the genetic cause of deafness in a large Iranian family. Due to the importance of SLC26A4 in causing hearing loss, information about the gene mutations can be beneficial in molecular detection and management of deaf patients. METHODS We investigated the genetic etiology in a large consanguineous family with 9 deaf patients from Fars province of I...

The nature and pace of genome mutation is largely unknown. Standard methods to investigate DNA-mutation rely on arraying or sequencing DNA from a population of cells, hence the genetic composition of individual cells is lost and de novo mutation in cell(s) is concealed within the bulk signal. We developed methods based on (SNP-) arraying and next-generation sequencing of single-cell whole-genom...

Hepatocyte nuclear factor 4alpha (HNF4alpha) is a nuclear receptor involved in glucose homeostasis and is required for normal beta cell function. Mutations in the HNF4alpha gene are associated with maturity onset diabetes of the young type 1 (MODY1). The aim of the present study was to determine the prevalence and nature of mutations in HNF4alpha gene in Iranian patients with a clinical diagnos...

Glycogen storage disease II (GSDII or Pompe disease, OMIM # 232300) is an autosomal recessive hereditary lysosomal disorder. Mutations in the GAA gene usually lead to reduced acid α-glucosidase (acid maltase, GAA, OMIM *606800, EC 3.1.26.2) activity, which results in impaired degradation and subsequent accumulation of glycogen within lysosomes. We present an Iranian boy, who was diagnosed with ...

Severe combined immunodeficiency (SCID) represents a rare group of primary immunodeficiency disorders (PIDs), with known or unknown genetic alterations. Here, we report a new interleukin 2 receptor, gamma chain (IL-2RG) mutation in an Iranian SCID newborn. The patient was a 6-day old boy with a family history of PID. The child was screened using a molecular-based analysis for the assessment of ...