RESUMEN
<p><b>OBJECTIVE</b>To investigate the clinical significance of plasmic homocysteine (Hcy), folate (FA) and Vitamin B(12) (VitB(12)) in patients with ulcerative colitis (UC).</p><p><b>METHODS</b>Plasmic Hcy in 112 cases of UC patients and 110 controls were detected by HPLC-FD method. Plasmic FA, VitB(12) in 76 cases of UC patients and 12 controls were detected by enzyme-linked immunosorbent assay (ELISA) method.</p><p><b>RESULTS</b>The level of plasmic Hcy in UC patients was(11.27±7.26) μmol/L, significantly higher than that in controls[(8.19±4.81) μmol/L, P<0.05], and was not significantly correlated with disease index, extent and duration of UC(P>0.05). The level of FA and VitB(12) in UC patients were (7.64±1.95) nmol/L and (108.64±32.22) pmol/L respectively, lower than those in controls[(9.14±1.23) nmol/L and (112.64±33.33) pmol/L, P<0.05]. The level of plasmic Hcy was negatively correlated with the level of FA and VitB(12) in UC patients(P<0.05). The level of plasmic FA decreased to some extent with UC disease duration.</p><p><b>CONCLUSION</b>Plasmic Hcy is elevated in UC patients, which may be related to the decrease of FA and VitB(12).</p>