Mohammad Mehdi Heidari
Department of Biology, Yazd University, Yazd, Iran
[ 1 ] - The mitochondrial DNA mutations associated with cardiac arrhythmia investigated in an LQTS family
Objective(s): As mitochondrial oxidative stress is probably entailed in ATP production, a candidate modifier factor for the long QT syndrome (LQTS) could be mitochondrial DNA (mtDNA). It has been notified that ion channels' activities in cardiomyocytes are sensitive to the ATP level. Materials and Methods: The sample of the research was an Iranian family with LQTS for mutations by PCR-SSCP and...
[ 2 ] - Novel Missense Mitochondrial ND4L Gene Mutations in Friedreich's Ataxia
Objective(s) The mitochondrial defects in Friedreich's ataxia have been reported in many researches. Mitochondrial DNA is one of the candidates for defects in mitochondrion, and complex I is the first and one of the largest catalytic complexes of oxidative phosphorylation (OXPHOS) system. Materials and Methods We searched the mitochondrial ND4L gene for mutations by TTGE and sequencing on 30...
[ 3 ] - مقایسه پلی‌مورفیسم rs5186 (A1166C)ژن AGTR1 بیماران ایرانی مبتلا به عروق کرونری با افراد سالم: یک مطالعه مورد- شاهدی
Background and Aim: Coronary artery disease (CAD) is a multifactorial inherited disorder in which the arteries that blood to the heart muscle become hardened and narrowed. We aimed at investigating the role of rs5186 (A1166C) polymorphism the angiotensin II type 1 receptor (AGTR1) gene as risk factors in some Iranian CAD patients. Materials and Methods: In this case-control study 137 samples...
[ 4 ] - بررسی جهش در اگزون 8 ژن CLCN1 در بیماران ایرانی مبتلا به میوتونی غیر دیستروفیک
Background: Non-dystrophy myotonias (NDMs) have similar clinical signs of muscle weakness and congenital myotoniais typical example. This disease is caused by mutations in CLCN1 gene. CLCN1 gene has 23 exons and exon 8 is hotspot. Mutations in skeletal muscle chloride channel gene are associated with a group of clinically overlapping diseases by alterations in the excitability of the sarcolemma...
[ 5 ] - Molecular Analysis of rs2070744 and rs1799983 Polymorphisms of NOS3 Gene in Iranian Patients With Multiple Sclerosis
Introduction: Multiple Sclerosis (MS) is a disease of central nervous system that mainly causes lesions or plaques in the spinal cord and brain. The purpose of this study was to analyze the relation between c.-813C>T (rs2070744) and c.894G>T (rs1799983) polymorphisms of NOS3 gene and MS in Iranian patients. Methods: A total of 78 patients with MS and 80 healthy controls were screened for NOS3 ...
[ 6 ] - Designing and Validation of One-Step T-ARMS-PCR for Genotyping the eNOS rs1799983 SNP
Background: The transversion of G to T (G894T) in human endothelial nitric oxide synthase (eNOS) gene has profound effects such as male infertility, recurrent miscarriage, multiple sclerosis and cardiovascular diseases.Objectives: Development of a new Multiplex Tetra-Primer Amplifi cation Refractory Mutation System - Polymerase Chain Reaction (T-ARMS-PCR) for detection of...
[ 7 ] - بررسی تغییرات نوکلئوتیدی ژن‌های میتوکندریایی ATP6، ND3 و COX3 در بیماران مبتلا به پلاک‌های آترواسکلروتیک با روش PCR-SSCP
چکیده: زمینه و هدف: آترواسکلروز یک بیماری شریانی چندعاملی است که به دلیل برهمکنش فاکتورهای محیطی و ژنتیکی ایجاد می‌شود. جهش‌های ژنوم میتوکندری احتمالاً اثر مستقیم در افزایش فشار اکسیداتیو دارند و درنتیجه باعث پیشرفت این بیماری می‌شوند. هدف از مطالعه اخیر، شناسایی تغییرات نوکلئوتیدی احتمالی ژن‌های میتوکندریایی ATP6، ND3 و COX3 در بیماران ایرانی مبتلا به پلاک‌های آترواسکلروتیک است. روش بررسی: در ا...
[ 8 ] - Protective effect of Berberis vulgaris on Fenton reaction-induced DNA cleavage
Objective: Berberis vulgaris contains antioxidants that can inhibit DNA cleavage. The purpose of this study was to evaluate the antioxidant and protective activity of B. vulgaris on DNA cleavage. <span style="font-size: medium;"...
[ 9 ] - The Study of Nitric Oxide Synthase 3 (NOS3) T-786C and 4a4b Gene Polymorphism in Iranian Men with Varicocele
Background and Objectives: Varicocele is one of the most common causes of male infertility. Varicocele is an abnormal dilatation and tortuosity of veins of the pampiniform plexus, which drain the testis. Studies have shown that elevated level of oxidative stress markers, such as nitric oxide (NO) in the dilated veins of patients with varicocele impair testicular function. The aim of this study,...
[ 10 ] - Molecular Mechanisms of Recurrent Pregnancy Loss
Introduction: Pregnancy and health is the process in which the egg is fertilized and being able to survive. When pregnancy occurs under some conditions and the fetus is being at risk, it will lead to abortion that occurs involuntarily and spontaneously. Abortions that occur more than two or three times are called recurrent pregnancy loss (RPL). Various etiological factors involved in RPL, inclu...
[ 11 ] - Mitochondrial Genetic Variation in Iranian Infertile Men with Varicocele
Objective Several recent studies have shown that mitochondrial DNA mutations lead to major disabilities and premature death in carriers. More than 150 mutations in human mitochondrial DNA (mtDNA) genes have been associated with a wide spectrum of disorders. Varicocele, one of the causes of infertility in men wherein abnormal inflexion and distension of veins of the pampiniform plexus is observe...
[ 12 ] - Association of Pathogenic Missense and Nonsense Mutations in Mitochondrial COII Gene with Familial Adenomatous Polyposis (FAP)
Nuclear genetic mutations have been extensively investigated in solid tumors. However, the role of the mitochondrial genome remains uncertain. Since the metabolism of solid tumors is associated with aerobic glycolysis and high lactate production, tumors may have mitochondrial dysfunctions. Familial adenomatous polyposis (FAP) is a rare form of colorectal cancer and an autosomal dominant inheri...
[ 13 ] - Analysis of Missense Mutations of CX3CR1 Gene in Patients with Recurrent Pregnancy Loss Using Bioinformatics Tools
Introduction: Abortion is a common complication that refers to the early termination of pregnancy with the death of the fetus before the 20th week of pregnancy. Previous studies show that many genes are involved in this disease, including the CX3CR1 gene, which is one of the inflammatory response genes in the immune system. The pathogenicity of these variants was determined in this study using ...
[ 14 ] - Genetic Analysis of D-Loop Region of Mitochondrial DNA Sequence in Iranian Patients with Familial Adenomatous Polyposis (FAP): A Case-Control Study
Background and Objectives: Familial adenomatous polyposis (FAP) is an inherited disorder and a rare form of colorectal cancer. This disease appears equally in both sexes and its occurrence is more in the second or third decade of life. Mutations and alterations of the mitochondrial genome, especially the D-loop region, have been reported in various human tumors. But the exact role of these muta...
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