نتایج جستجو برای: trna mitochondrial mutation repeated pregnancy loss

تعداد نتایج: 1060873  

Journal: :international journal of reproductive biomedicine 0
seyed mohammad seyedhassani massoud houshmand seyed mehdi kalantar abbas aflatoonian glayol modabber fatemeh hadipour

background: mitochondrial transfer rnas (trna) genes are essential components of protein biosynthesis. these genes are hotspots for mutations. these mutations are associated with a wide spectrum of human disease. many genetic factors are known in assessment of repeated pregnancy loss (rpl). objective: the aim of this study was analysis of trna thr and trna pro in women with rpl. materials and m...

2010
Seyed Mohammad Seyedhassani Massoud Houshmand Seyed Mehdi Kalantar Abbas Aflatoonian Glayol Modabber Fatemeh Hadipour Hossein Fallahzadeh

Background: Mitochondrial transfer RNAs (tRNA) genes are essential components of protein biosynthesis. These genes are hotspots for mutations. These mutations are associated with a wide spectrum of human disease. Many genetic factors are known in assessment of repeated pregnancy loss (RPL). Objective: The aim of this study was analysis of tRNA Thr and tRNA Pro in women with RPL. Materials and M...

Journal: :iranian journal of public health 0
chun mei wang xiao jing zhang ying jun ma xia li

background: mitochondria are autonomous cellular organelles that oversee a variety of functions such as metabolism, energy production, calcium buffering, and cell fate determination. most recently, mitochondrial dysfunction caused by mitochondrial mutations played important roles in the pathogenesis of asthma. however, the frequency of mitochondrial trna mutations in asthma is largely unknown. ...

Journal: :international journal of pediatrics 0
massoud houshmand department of medical genetics, national institute for genetic engineering and biotechnology, tehran- iran kazem mousavizadeh cellular and molecular research center, tehran university of medical sciences, tehran- iran mohammad askari department of biotechnology, college of allied medicine, tehran university of medical sciences, tehran- iran amin reza nikpour department of immunology, mashhad university of medical sciences, mashhad, iran mohsen mazidi biochemistry and nutrition research center, mashhad university of medical sciences, mashhad, iran maryam tavafjadid cellular and molecular research center, tehran university of medical sciences, tehran- iran

the autism spectrum disorders (asd) are amongst the most heritable complex disorders. although there have been many efforts to locate the genes associated with asd risk, many has been remained to be disclosed about the genetics of asd. scrutiny's have only disclosed a small number of de novo and inherited variants significantly associated with susceptibility to asd. these only comprise a s...

Journal: :Journal of medical genetics 2011
Xukun Yan Xinjian Wang Zhengmin Wang Shan Sun Guoling Chen Yingzi He Jun Qin Mo Ronghua Li Pingping Jiang Qin Lin Mingzhi Sun Wen Li Yan Bai Jianning Zhang Yi Zhu Jianxin Lu Qingfeng Yan Huawei Li Min-Xin Guan

The authors report here the clinical, genetic, molecular and biochemical characterisation of a large five-generation Han Chinese pedigree with maternally transmitted non-syndromic hearing loss. 17 of 35 matrilineal relatives exhibited variable severity and age at onset of sensorineural hearing loss. The average age at onset of hearing loss in matrilineal relatives of this family is 29 years, wh...

Journal: :cell journal 0

introduction: a number of maternally inherited mitochondrial diseases with distinct clinical phenotypes have been associated with point mutations in mtdna, all of which result in neurologic or neuromuscular disorders. several studies showed that mutations in the trna genes of mtdna could cause mitochondrial disease due to the decreased synthesis of mitochondrial dna coded proteins. materials an...

Journal: :The Journal of biological chemistry 2009
Changkeun Lee Anne S Tibbetts Gisela Kramer Dean R Appling

Initiation of protein synthesis in mitochondria and chloroplasts normally uses a formylated initiator methionyl-tRNA (fMet-tRNA(f)(Met)). However, mitochondrial protein synthesis in Saccharomyces cerevisiae can initiate with nonformylated Met-tRNA(f)(Met), as demonstrated in yeast mutants in which the nuclear gene encoding mitochondrial methionyl-tRNA formyltransferase (FMT1) has been deleted. ...

The autism spectrum disorders (ASD) are amongst the most heritable complex disorders. Although there have been many efforts to locate the genes associated with ASD risk, many has been remained to be disclosed about the genetics of ASD. Scrutiny's have only disclosed a small number of de novo and inherited variants significantly associated with susceptibility to ASD. These only comprise a small ...

درویش‌زاده, فرزانه , سلطان‌دراج, قمر , لاریجانی, باقر , هوشمند, مسعود ,

Background: Mitochondria is one of the intracellular organelle with specific DNA. Some diseases caused by mtDNA mutations have been reported up to now. Mutation of A3243G and deletion of 5kb are two of them that related to Diabetes type II. The aim of this study was to evaluate the frequency of A3243G mutation and 5kb mt DNA deletion in type II diabetic patients.Methods: The DNA extracted from...

Journal: :genetics in the 3rd millennium 0
صدف کسرایی sadaf kasraie national institute of genetic engineering and biotechnology (nigeb), tehran, iran مسعود هوشمند masoud houshmand محمد مهدی بانویی mommad mehdi banoei سولماز اعتماد اهری soolmaz etemad ahari مهدی شفا شریعت پناهی mehdi shafa shariat panahi پوران شریعتی pouran shariati محمد علی بهار

huntington disease (hd) is a genetically dominant condition caused by expanded cag repeats which code for glutamine in the hd gene product, huntingtin. huntingtin is expressed in almost all tissues, so abnormalities outside the brain can also be expected. involvement of nuclei and mitochondria in hd pathophysiology has been suggested. in fact, mitochondrial dysfunction is reported in brains of ...

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