کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6285523 | 1296835 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Correlation between cystathionine beta synthase gene polymorphisms, plasma homocysteine and idiopathic mental retardation in Indian individuals from Kolkata
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب (عمومی)
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چکیده انگلیسی
Deficiency in cystathionine beta synthase (CBS) enzyme sometimes leads to hyperhomocysteinemia/homocystinuria, conditions often associated with mental retardation (MR). In this investigation, association of idiopathic MR (IMR) with six CBS gene polymorphisms and fasting total plasma homocysteine (plHcy) was explored. Nuclear families with IMR probands (NÂ =Â 180) and control subjects (NÂ =Â 106) were recruited. Genomic DNA was subjected to PCR amplification and RFLP analysis. plHcy was measured by enzyme immunoassay. Data obtained was subjected to statistical analyses. Linkage disequilibrium between polymorphic sites was computed. T833C/844ins68 polymorphism revealed significant maternal transmission in IMR cases. The 31Â bpVNTR 21 repeat allele was significantly higher in male IMR cases as compared to sex-matched controls (PÂ =Â 0.004). A significant difference was also noticed in genotype frequencies of male IMR cases (PÂ =Â 0.005). Four other sites, G919A, C1105T, G1316A and G1330A, were not polymorphic in the studied population. While no significant contribution of any particular genotype was observed, plHcy level was significantly higher in male IMR cases as compared to sex-matched controls (PÂ =Â 0.0001). The data presented here is probably indicative of a higher risk of IMR in male subjects in association with two CBS polymorphisms and mild elevation in plHcy concentration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience Letters - Volume 453, Issue 3, 10 April 2009, Pages 214-218
Journal: Neuroscience Letters - Volume 453, Issue 3, 10 April 2009, Pages 214-218
نویسندگان
Samikshan Dutta, Arpita Chatterjee, Swagata Sinha, Anindita Chattopadhyay, Kanchan Mukhopadhyay,