OBJECTIVE: Increased homocysteine (Hcy) concentration is considered a risk factor for coronary artery disease (CAD). Genetic alterations of the metylenetetrahydrofolate reductase (MTHFR) enzyme could reduce its thermolability and alter the Hcy metabolism, contributing to development of atherosclerotic lesions. Objective of this study was to investigate the relation between MTHFR C677T and A1298C polymorphisms and presence, extension, and severity of CAD. METHODS: One hundred seventy-five patients with CAD confirmed by angiography, and 108 individuals without CAD (control group) were evaluated. MTHFR C677T polymorphism was investigated by polymerase chain reaction (PCR) followed by enzyme digestion. The genotyping of the MTHFR A1298C polymorphism was performed by PCR allele-specific method. RESULTS: Frequency of the altered allele MTHFR 677C was 0.38 in the CAD group and 0.37 in the control group. Regarding the polymorphic allele MTHFR 1298C, frequency was 0.22 and 0.27, respectively. The genotype distribution MTHFR C677T and A1298C did not differ regarding number of affected vessels (P > 0.05). Also, relation between MTHFR C677T polymorphism and degree of arterial obstruction was not observed (P > 0.05), as well as the MTHFR A1298C polymorphism (P > 0.05). CONCLUSION: Results did not show association between MTHFR A1298C and MTHFR C677T polymorphisms and presence, extension or severity of CAD.
OBJECTIVE: Increased homocysteine (Hcy) concentration is considered a risk factor for coronary artery disease (CAD). Genetic alterations of the metylenetetrahydrofolate reductase (MTHFR) enzyme could reduce its thermolability and alter the Hcy metabolism, contributing to development of atherosclerotic lesions. Objective of this study was to investigate the relation between MTHFRC677T and A1298C polymorphisms and presence, extension, and severity of CAD. METHODS: One hundred seventy-five patients with CAD confirmed by angiography, and 108 individuals without CAD (control group) were evaluated. MTHFRC677T polymorphism was investigated by polymerase chain reaction (PCR) followed by enzyme digestion. The genotyping of the MTHFRA1298C polymorphism was performed by PCR allele-specific method. RESULTS: Frequency of the altered allele MTHFR 677C was 0.38 in the CAD group and 0.37 in the control group. Regarding the polymorphic allele MTHFR 1298C, frequency was 0.22 and 0.27, respectively. The genotype distribution MTHFRC677T and A1298C did not differ regarding number of affected vessels (P > 0.05). Also, relation between MTHFRC677T polymorphism and degree of arterial obstruction was not observed (P > 0.05), as well as the MTHFRA1298C polymorphism (P > 0.05). CONCLUSION: Results did not show association between MTHFRA1298C and MTHFRC677T polymorphisms and presence, extension or severity of CAD.
Authors: Ana Luisa Miranda-Vilela; Arthur K Akimoto; Graciana S Lordelo; Luiz C S Pereira; Cesar K Grisolia; Maria de Nazaré Klautau-Guimarães Journal: Eur J Appl Physiol Date: 2011-04-23 Impact factor: 3.078
Authors: Ana Luisa Miranda-Vilela; Graciana Souza Lordelo; Arthur Kenji Akimoto; Penha Cristina Zaidan Alves; Luiz Carlos da Silva Pereira; Maria de Nazaré Klautau-Guimarães; Cesar Koppe Grisolia Journal: Genes Nutr Date: 2011-04-11 Impact factor: 5.523
Authors: Ana Luisa Miranda-Vilela; Arthur K Akimoto; Graciana S Lordelo; Luiz C S Pereira; Cesar K Grisolia; Maria de Nazaré Klautau-Guimarães Journal: Eur J Appl Physiol Date: 2011-06-26 Impact factor: 3.078
Authors: Dayse Maria Vasconcelos de Deus; Elker Lene Santos de Lima; Rafaela Maria Seabra Silva; Edinalva Pereira Leite; Maria Tereza Cartaxo Muniz Journal: Leuk Res Treatment Date: 2012-10-17
Authors: Sarah W El Hajj Chehadeh; Herbert F Jelinek; Wael A Al Mahmeed; Guan K Tay; Unini O Odama; Gehad E B Elghazali; Habiba S Al Safar Journal: Meta Gene Date: 2016-04-17