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分泌型 IgA(SIgA)是粘膜免疫系统的主要组成部分,具有防止细菌、病毒附着粘膜上皮细胞的功能。全肠外营养时由于胆道 SIgA 减少及肠道粘膜固有层 IgA 同型浆细胞的排空,从而使细菌向肠系膜淋巴
Secretory IgA (SIgA) is the main part of the mucosal immune system, with the function of preventing bacteria and viruses from attaching mucosal epithelial cells. Total parenteral nutrition due to reduced biliary SIgA and intestinal lamina propria IgA homogeneous plasma cells emptying, so that the bacteria to the mesenteric lymph