نتایج جستجو برای: methylenetetrahydrofolate reductase deficiency

تعداد نتایج: 180150  

Journal: :Neurology 2014
Gerarda Cappuccio Carla Cozzolino Giulia Frisso Roberta Romanelli Giancarlo Parenti Alessandra D'Amico Barbara Carotenuto Francesco Salvatore Ennio Del Giudice

Methylenetetrahydrofolate reductase (MTHFR) deficiency is a rare autosomal recessive disease included in the group of homocysteine remethylation disorders. The MTHFR catalyzes the irreversible conversion of 5,10-methylenetetrahydrofolate to 5-methyltetrahydrofolate. Besides the well-known association of thrombophilic defects with MTHFR variants and elevated homocysteine, few patients with MTHFR...

Journal: :AJNR. American journal of neuroradiology 1997
V Engelbrecht M Rassek J Huismann U Wendel

MR imaging showed severe atrophy and large areas without myelination in the brain of a girl with methylenetetrahydrofolate reductase deficiency. Proton MR spectroscopy revealed mild signal reduction of N-acetylaspartate. After treatment with betaine, a second MR imaging study revealed a decrease in the size of the hypomyelinated zones that was paralleled by improved clinical status and laborato...

Journal: :journal of dental research, dental clinics, dental prospects 0
asghar ebadifar shahid beheshti university of medical sciences nazila ameli postgraduate student of orthodontics, dental school, shahid beheshti university of medical sciences, tehran, iran hamid reza khorramkhorshid professor, genetic research centre, university of social welfare and rehabilitation sciences, tehran, iran mehdi salehi zeinabadi postgraduate student of pediatric dentistry, shahed dental school, tehran, iran 5reproductive biotechnology research center, avicenna research institute, acecr, tehran, iran kourosh kamali reproductive biotechnology research center, avicenna research institute, acecr, tehran, iran tayyebeh khoshbakht msc, genetic research centre, university of social welfare and rehabilitation sciences, tehran, iran

background and aims. the aim of the present study is to determine the incidence of mthfr c677 t and a1298c mutations in iranian patients with cleft lip and/or cleft palate. materials and methods. we screened 61 iranian patients with cleft lip and/or cleft palate for mutations in the two alleles of mthfr gene associated with cleft lip and/or palate: a1298c and c677t, using polymerase chain react...

Journal: :Clinics 2007
Suely Kazue Nagahashi Marie Samuel Katsuyuki Shinjo Sueli Mieko Oba-Shinjo Roseli da Silva Keila Cardoso Barbosa Fabio Yamamoto Milberto Scaff

PURPOSE Data are conflicting concerning the risk for ischemic stroke associated with a common polymorphism in the gene encoding 5,10-methylenetetrahydrofolate reductase C677T, which predisposes carriers to hyperhomocysteinemia. A meta-analysis study suggested that the 5,10-methylenetetrahydrofolate reductase 677TT genotype might have a small influence in determining susceptibility to ischemic s...

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