【摘要】 用人工配制的半纯化低钼词料喂饲大鼠５周，其红细胞ＮＡＤＨ－细胞色素ｂ＿５高铁血红蛋白还原酶（ＮＡＤＨ－ｂ５－ＭＨｂＫ）活力下降。补钼１．０和５．０ｍｇ／ｋｇ可使其活力明显上升。对低钼组、低钼补钼０．１ｍｇ／ｋｇ组和低钼补钼１．０ｍｇ／ｋｇ组大鼠红细胞ＮＡＤＨ－ｂ＿５－ＭＨｂＲ活力和钼含量的相关性分析结果表明，两者呈明显正相关。结合反复失血实验结果，提出此酶可能是一种新的含钼酶或是依赖于钼的酶。更多还原

【Abstract】 olybdenum deficiency of rats was produced by low molybdenum diet.The NADH-cytochrome b₅-methemoglohin reductase activity in erythrocyte was increased significantly in the rats supplemented with 1.0 and 5.0mg/kg Mo as NaMoO₄ to the diet.The concentrations of molybdenum in ery-throcytes of rats of supplemented groups were significantly higher than those of low molybdenum group.The concentration of molybdenum in erythrocytes was significantly correlated with NADH-cytochrome b₅-met-hemoglobin redutase activity in rats supplemented with 0.1 and 1.0 mg/kg molybdenuM. Molybdenum might be an essential component of NADH-cytochrome b₅-methemoglobin reductase or the activity of this enzyme might depend on molybdenum.更多还原