髓性过氧化物酶(Myeloperoxidase,MPO)是中性粒细胞内的一种重要杀菌物质,测定此酶活性,不仅是诊断髓性过氧化物酶缺乏症的直接依据,而且也是鉴别粒细胞性和淋巴细胞性白血病的一种方法。测定初生婴儿MPO的活性,还有助于了解围生期婴儿的免疫特点和白细胞的发育规律。为此,我们测定了61名初生婴儿外周血中性粒细胞髓性过氧化物酶的活性,并以同等数量的健康成人作为对照,以比较两者之间有无差别。 Myeloperoxidase (MPO), an important bactericidal substance in neutrophils, is not only the basis for the diagnosis of myeloperoxidase deficiency, but also for the identification of myelocytic And a method of lymphocytic leukemia. Determination of neonatal infant MPO activity, but also help to understand the perinatal infant immune characteristics and leukocyte development. To this end, we measured the activity of peripheral blood neutrophil myeloperoxidase in 61 newborn infants and compared them with the same number of healthy adults to compare them.