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等离子体原子发射直读光谱法（ＤＣＰ－ＡＥＳ）检测８４例反复呼吸道感染（ＲＲＩ）患儿血清锌、锰、铝、镉、铁、铅、铜、镍、钛、钴、锂和铬的水平，并对其中密切合作的３７例血锌和／或铁水平降低者进行了补充富马酸亚铁和／或硫酸锌治疗后的纵向观察。结果表明治疗前ＲＲＩ组血清锌、铁、铅、镍、钛、钴、锂均值显著降低，锰、铝、镉、铜、铬均值无明显变化；治疗２个月后，ＲＲＩ患儿随临床症状明显改善，血清锌、铁、钛、钴、锂水平较前明显升高，铝、镉、铜水平下降，锰、镍、铅水平则无显著变化。提示铁、锌缺乏可能在ＲＲＩ发病中占有重要地位，补充铁锌对其它元素的血清水平及分布等可能有明显影响。
Plasma levels of zinc, manganese, aluminum, cadmium, iron, lead, copper, nickel, titanium, cobalt, lithium and chromium in 84 patients with recurrent respiratory tract infection (RRI) were measured by direct atomic absorption spectrometry (DCP- , And longitudinal observation of 37 patients with reduced levels of blood zinc and / or iron in close cooperation was performed following treatment with ferrous fumarate and / or zinc sulfate. The results showed that before treatment RRI group serum zinc, iron, lead, nickel, titanium, cobalt, lithium mean significantly decreased, manganese, aluminum, cadmium, copper and chromium mean no significant change; 2 months after treatment, RRI children with clinical symptoms The levels of serum zinc, iron, titanium, cobalt and lithium were significantly increased, while the levels of aluminum, cadmium and copper were decreased. There was no significant change in the levels of manganese, nickel and lead. Tip iron and zinc deficiency may play an important role in the pathogenesis of RRI, iron and zinc supplementation of other elements of the serum levels and distribution may have a significant impact.