Archivos Latinoamericanos de Nutrición (Jan 2005)
Efecto de la suplementación con las vitaminas B12, B6 y ácido fólico en los niveles de homocisteina y lípidos plasmáticos en pacientes con hiperlipoproteinemia secundaria tipo IV Effect of the suplementación of vitamins B12, B6 and folic acid on homocysteine and plasmatic lipids in patients with hyperlipoproteinemic secondary type IV .
Abstract
Los casos de hiperlipoproteinemia secundaria tipo IV se manifiestan por una marcada elevación de triglicéridos, colesterol normal o elevado y homocisteina ligeramente elevada. Se investigó el efecto del suplemento de las vitaminas B12, B6 y ácido fólico, sobre los niveles de homocisteina y lípidos plasmáticos, en 24 pacientes masculinos, edad de 35-68 años inclusive, con hiperlipoproteinemia secundaria tipo IV e isquemia del miocardio, sin previo tratamiento con hipolipemiante. Los pacientes fueron suplementados con dosis terapéuticas en tabletas de vitamina B12, (500 m g/día), B6, (600 mg/día) y ácido fólico (20 mg/día), durante 120 días. Se determinó homocisteina, triglicéridos, colesterol total y fraccionado, a (basal), 30, 60, 90 y 120 días. Se aplicaron análisis estadísticos descriptivos, coeficiente de correlación de Pearson, prueba de "t", grado de confianza pThe cases of hyperlipoproteinemic secondary type IV are manifested by elevation of triglycerides, with normal or high cholesterol and lightly high homocysteine. The effect of vitamins B12, B6 and folic acid, on homocysteine and lipids, in 24 male patients, 35-68 years, with hiperlipoproteinemia secondary type IV with myocardial isquemic, and without previous treatment of hipolipemiant, was investigated. The patients were supplemented with therapeutic doses tablets of vitamin B12, 500 (µg/day); B6, (600 mg/day) and folic acid (20 mg/day), during 120 days. Homocysteine, triglycerides, total and fractional cholesterol, at (basal), 30, 60, 90 and 120 days, were determined. Descriptive statistical analyses were applied, coefficient of correlation of Pearson and proves of "t", with a p < 0.005; the data were processed by statistical program SPSS version 8.0. The results showed a decrease in the levels of homocysteine from basal 17,1±0,7 µmol/L to 13,18±0,83 µmol/L, at the end of experimental period. The triglycerides (TG), total cholesterol (TC), low density lipoprotein (LDL), very low density lipoprotein (VLDL) showed a reduction of (21,8 mg/dl; 8,5 mg/dl; 5,87 mg/dl; respectively) for every µmol/L of reduced homocysteine, with (p <0,001) for triglycerides. High density lipoprotein (HDL) increased 1,1 mg/dl and coronary risk descent in 24%. We concluded that therapeutic doses of vitamins B12, B6 and folic acid, may is effective in decreased plasmatic homocysteine levels and lipids, mainly triglycerides, with a reduction of coronary risk, to these type of patients, with not collateral effects of neuropathy.
