Key Clinical Message: The discovery of compound heterozygous mutations (c.245T>C; p.Val82Ala and c.
View Article and Find Full Text PDFThis study delves into Usher syndrome type 2 (USH2), an uncommon genetic disorder characterized by sensorineural hearing loss (HL) and retinitis pigmentosa (RP), often associated with the gene. Focusing on an Iranian family exhibiting USH2 symptoms, exome-sequencing was employed for a comprehensive genome analysis in a 30-yearold patient. The investigation unveiled a novel variation (NM_206933.
View Article and Find Full Text PDFBackground: Cytogenetics and association studies showed that folate gene polymorphisms can increase the risk of chromosomal nondisjunction and aneuploidies. The folate-metabolizing gene polymorphisms in Down syndrome mothers (DSM) have been assessed in a variety of populations. Reduced folate carrier 1 () and cystathionine beta-synthase () are key enzymes in folate metabolism.
View Article and Find Full Text PDFKey Clinical Message: The identification of a novel gene mutation highlights the importance of precise variant identification for retinitis pigmentosa prognosis and genetic consultations, emphasizing comprehensive genetic analysis for personalized care.
Abstract: Our study unveils a noteworthy association between retinitis pigmentosa-1 and a newly discovered homozygous mutation (c.5326delC; p.
Iran J Otorhinolaryngol
January 2024
Introduction: Hearing loss (HL) is the most frequent sensory neurodeficiency, affecting a broad spectrum of individuals globally. Within this context, the role of genetic factors takes center stage, particularly in cases of hereditary HL.
Case Report: Here, we present a nonsyndromic HL (NSHL) case report.
Duchenne muscular dystrophy (DMD) is caused by mutations in the dystrophin gene, which mostly affects boys. The subject was an 8-year-old child who had typical symptoms of muscle weakness. The NGS may be used as an efficient and cost-effective molecular diagnostic strategy for identifying patients with DMD.
View Article and Find Full Text PDFBackground: Timely and accurate diagnosis of genetic diseases can lead to proper action and prevention of irreparable events.
Objective: In this work we propose an integrated genetic-neural network (GNN) to improve the prediction risk of trisomy diseases including Down's syndrome (T21), Edwards' syndrome (T18) and Patau's Syndrome (T13).
Methods: A dataset including 561 pregnant were created.
In this study, we describe one Iranian patient who was diagnosed with Epidermolysis Bullosa (EB) because of mutations in three candidate genes, including 3 mutations. Two missense mutations in the (D3134H) and (Y339H) genes and also, a synonymous mutation in the (H422H) gene were identified that leads to the Junctional-EBHerlitz (JEB-Herlitz) clinical phenotype. The patient had a heterozygous mutation combined with a heterozygous mutation in .
View Article and Find Full Text PDFThis point of detected mutation could be considered as a novel mutational hotspot point that carried in patient ancestors. Moreover, the obtained results and family history suggest a precise genetic consulting and molecular prenatal evaluation for suspect individuals with a family history of mental and physical abnormalities.
View Article and Find Full Text PDFBackground: Premature ovarian failure is a heterogeneous disorder, leading to early menopause. Several genes have been identified as the cause of non-syndromic premature ovarian failure (POF). Our aim was to explore the genetic defects in Iranian patients with POF.
View Article and Find Full Text PDFBackground: Hearing loss, a congenital genetic disorder in human, is difficult to diagnose. Whole exome sequencing is a powerful approach for ethiological disgnosis of such disorders.
Methods: One Iranian family with two patients were attented in the study.
Introduction: Sensorineural hearing loss is the most frequent type of hearing impairment in the human population. Genetic factors account for over 60% of hearing loss in patients. This is a genetically heterogeneous sensorineural disorder.
View Article and Find Full Text PDFBackground: Hepatocellular carcinoma (HCC) is the most common type of liver cancer that occurs predominantly in patients with previous liver conditions. In the absence of an ideal screening modality, HCC is usually diagnosed at an advanced stage. Recent studies show that loss or gain of genomic materials can activate the oncogenes or inactivate the tumor suppressor genes to predispose cells toward carcinogenesis.
View Article and Find Full Text PDFContext: Thalassaemia is one of the most common inherited autosomal recessive disorders around the world. A considerable amount of literature has been published about the type of mutations and the prevalence of thalassaemia, but findings are often contradictory.
Objective: This systematic review aimed to provide a comprehensive view of the prevalence of thalassaemia-associated mutations in different countries, their effect on haemoglobin (Hb) levels, as well as reporting thalassaemia-associated rare mutations.
Int J Clin Pract
May 2021
Background: The pathogenesis of type 2 diabetes mellitus (T2DM) is associated with chronic oxidative stress and inflammation. It is well known that the expression of some miRNAs such as miRNA-146a is upregulated in diabetic and hyperglycaemic patients, whereas circulating miRNA-126 is reduced. Therefore, we aimed to determine the effects of astaxanthin (AST) supplementation on the circulating malondialdehyde (MDA) and interleukin 6 (IL-6) levels, and the expression of miR-146a and miR-126 in patients with T2DM.
View Article and Find Full Text PDFTaurine (Tau), an endogenous non-protein and sulfuric-amino acid, is involved in various biological pathways including anti-inflammatory, anti-oxidation, insulin resistance inhibition, and lipid profile improvement. According to some experimental and clinical studies, insulin resistance and excess body weight are associated with reduced serum level of Tau. Therefore, this study was aimed to evaluate Tau supplementation and a diet-induced weight-loss intervention on body composition and some biochemical indices of obese women.
View Article and Find Full Text PDFBackground: As a lifetime disorder, ulcerative colitis (UC) is an inflammatory bowel disease (IBD) that affects quality of life and also demands long-term interventions. In spite of considerable side effects and sometimes restricted uses, efficient medications are available for UC treatment. Some in vitro and in vivo examinations have correspondingly introduced ginger and its active components with antioxidant, anti-inflammatory, and anti-ulcerative properties.
View Article and Find Full Text PDFOxidative stress has become the focus of interest as a potential cause of male infertility. We evaluate effects of lipoic acid (LA) supplementation on glutathione S-transferase (GST) expression. This randomized, triple-blind, placebo-controlled clinical trial was conducted on 44 infertile males with idiopathic asthenozoospermia.
View Article and Find Full Text PDFObjectives: Charcot-Marie Tooth disease (CMT) is one of the main inherited causes of motor and sensory neuropathies with variable expressivity and age-of onset. Although more than 70 genes have been identified for CMT, more studies are needed to discover other genes involved in CMT. Introduction of whole exome sequencing (WES) to capture all the exons may help to find these genes.
View Article and Find Full Text PDFHearing loss (HL) is a common sensory deficit with high phenotypic and genotypic heterogeneity. A large Iranian family with HL was genetically assessed in this study. A proband from a consanguineous multiplex HL family from Iran was examined via Targeted Next-Generation Sequencing (TNGS).
View Article and Find Full Text PDFBackground: Short-stature (SS) is multifactorial pathologic condition that originates from either genetic or environmental factors. The diagnosis is based on family history, clinical findings, radiological examination and genetic analysis. A variety of genes have been reported for SS, among which FGFR-3 was the main gene in achondroplasia and hypochondroplasia.
View Article and Find Full Text PDFBackground: Taurine (Tau) is involved in many biochemical functions such as regulation of glucose and lipid metabolism, enhancement of energy expenditure, anti-inflammatory effects and appetite control. The most important effect of Tau in obesity is its direct effect on adipose tissue. Some evidence has shown an impaired FGF (fibroblast growth factor) 19 and 21 biosyntheses in obesity.
View Article and Find Full Text PDFAutosomal recessive cerebellar ataxia is heterogeneous inherited neurodegenerative disorders with more than 70 involved genes. The development of next generation sequencing opens a new window in rapid diagnosis of such heterogeneous condition in medical genetics laboratories. Here, we present ADCK3; del.
View Article and Find Full Text PDFBackground And Objectives: Hereditary hearing loss (HL) is known by a very high genetic heterogeneity, which makes a molecular diagnosis problematic. Next-generation sequencing (NGS) is a new strategy that can overcome this problem.
Method: A comprehensive family history was obtained, and clinical evaluations and pedigree analysis were performed in the family with 3 affected members.
Objective And Background: Histological and molecular information and biopsy help in the diagnosis of the type and grade of tumors and increase the value of estimation of the biological behavior of tumors. In this study, we focused on a consanguineous Iranian Family with high prevalence of brain tumors in their pedigree and reviewed the literature on MSH6 mutations in brain tumors and the treatment responses focused on Gliomas.
Method: We chose a family with a high prevalence of brain tumor in their pedigree.