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免疫是人体庞大的自我防御系统,一旦功能低下,各种病原体便会乘虚而入导致局部或全身的各种疾病或并发症。免疫功能低下除遗传或先天因素外,大多与各种基础疾病,医疗水平及环境污染等后天因素有关,后者大致可分为以下五种因素。1.免疫抑制剂的使用 主要是糖皮质激素和细胞毒类药物。1·1 大量的长时间的使用糖皮质激素可使循环中的淋巴细胞减少,特别是T淋巴多被封闭在骨髓中,故循环中的T细胞减少更明显。从而使细胞免疫功能降
Immune is the body’s huge self-defense system, once dysfunctional, various pathogens will take advantage of leading to various local or systemic diseases or complications. In addition to genetic or innate immune deficiency factors, mostly with a variety of underlying diseases, medical standards and environmental factors such as acquired factors, the latter can be divided into the following five factors. 1. The use of immunosuppressive agents is mainly glucocorticoid and cytotoxic drugs. 1.1 A large number of prolonged use of glucocorticoids can reduce circulating lymphocytes, especially the T-lymphocytes are mostly closed in the bone marrow, so the cycle of T-cell reduction more pronounced. So that cellular immune function down