Resumo

MORON DE SALIM, Alba Rosa  e  GARCES PASAMONTES, Antonio. Effect of the suplementación of vitamins B₁₂, B₆ and folic acid on homocysteine and plasmatic lipids in patients with hyperlipoproteinemic secondary type IV . . ALAN [online]. 2005, vol.55, n.1, pp.28-33. ISSN 0004-0622.

The 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.

Palavras-chave : hiperlipoproteinemia; homocysteine; vitamin B₁₂; vitamin B₆; folic acid; triglycerides; coronary risk.