Hyperhomocysteinemia and methylenetetrahydrofolate reductase 677C→T and 1298A→C mutations in patients with inflammatory bowel disease
Background: hyperhomocysteinemia has been recently described in patients with inflammatory bowel disease (IBD), that could be related to the increased risk for thrombosis that exists in this disease. The aim of this study was the assessment of hyperhomocysteinemia in patients with IBD and its relation among vitamin B12 and folate levels, and methylenetetrahydrofolate reductase (MTHFR) 677C→ T and 1298A→C mutations. Patients and methods: fifty two consecutive patients with IBD were studied (29 women and 23 men); age: mean (standard deviation 41.7 [11.9] years) and 186 controls with no difference in age and gender. Hyperhomocysteinemia was considered as homocysteine levels higher than mean plus two standard deviations of the control group (≥ 13 μmol/l). Results: patients had an elevated prevalence of hyperhomocysteinemia (17.3 vs. 3.7%; p = 0.002) and lower folate (7.6 [4.1] vs. 8.9 [3.7] ng/ml; p = 0.01) and B12 vitamin levels (499 [287] vs. 603 [231] pg/ml; p = 0.003). Homocysteinemia was higher (14.3 [5.8] vs. 9.1 [3.9] μmol/l; p = 0.006) in 6 patients (11.5%) that had suffered thromboembolism. Frequency of MTHFR 677C→T (13.5 vs. 11.3%; p = 0.66) and 1298A→C (7.8 vs. 7.0%; p = 0.76) mutations was not increased in patients. Odds ratio (OR) for IBD in hyperhomocysteinemic patient was 5.51, 95% confidence interval (CI), 1.81-16.76; p = 0.002). Hyperhomocysteinemia was negatively associated with feminine gender (OR 0.08, 95% CI 0.01-0.49; p = 0.006) and folate levels (OR 0.04, 95%CI: 0.007-0.20; p < 0.001). Conclusions: hyperhomocysteinemia is associated with IBD and low folate levels, and could be involved in development of thromboembolism. MTHFR 677C→T and 1298A→C mutations are not related with the disease.
Main Authors: | Fernández-Miranda,C., Martínez Prieto,M., Casis Herce,B., Sánchez Gómez,F., Gómez González,P., Martínez López,J., Sáenz-López Pérez,S., Gómez de la Cámara,A. |
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Format: | Digital revista |
Language: | English |
Published: |
Sociedad Española de Patología Digestiva
2005
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Online Access: | http://scielo.isciii.es/scielo.php?script=sci_arttext&pid=S1130-01082005000700005 |
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