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目的幽门螺杆菌(Hp)感染者存在高滴度的抗Hp-IgE抗体,推论MC可能在Hp的发病中起着某种作用.方法共58例,男47例,女11例,诊断十二指肠溃疡(DU)23例,红斑渗出性胃炎35例,其中糜烂性胃炎8例.内镜作出诊断后取窦体部活检,分别作组织病理学(HE染色)及Hp检查.MC计数:采用ABC免疫组织化学染色.一抗采用抗MC类胰蛋白酶单克隆抗体AA1(英国Dr.AFWals惠赠),ABC试剂盒购自Vector公司(美国).采用10%Formalin固定之活检标本常规制片,按ABC法常规操作.采用显微计数尺,分别计算粘膜及粘膜下的完整MC和脱颗粒MC数,每片连续计数10个高倍视野的MC数目,结果以个数/mm2表示.各样本间的比较采用秩和检验.结果23例DU中Hp阳性率739%;35例胃炎中Hp阳性率522%.组织病理学诊断轻度炎症30例,其中活动性炎4例,非活动性炎26例;中度炎症22例,其中活动性炎15例,非活动性炎7例;重度炎症3例,均为活动性炎.MC在镜下呈棕色,清晰可辨,未脱颗粒者细胞完整,胞质均匀,胞膜清晰,脱颗粒者则胞膜破溃,颗粒呈喷射状泻出,细胞形状不规则.MC存在于粘膜的各层,但形态稍?
Objective Hp infection has high titers of anti-Hp-IgE antibodies, suggesting that MC may play a role in the pathogenesis of Hp. Methods A total of 58 cases, 47 males and 11 females, 23 cases of duodenal ulcer (DU), 35 cases of erythema exudative gastritis, 8 cases of erosive gastritis. Endoscopic diagnosis of sinus body taken after biopsy, respectively, for histopathology (HE staining) and Hp examination. MC count: immunohistochemical ABC staining. Primary anti-MC tryptase monoclonal antibody AA1 (the British Dr.AFWals gift), ABC kit was purchased from Vector Corporation (USA). Using 10% Formalin biopsy specimens routine production, according to the ABC method routine operation. The micrometer and the mucosa were used to calculate the complete MC and the number of degranulated MC, respectively. The number of MC in 10 high power fields was counted continuously for each piece. The result was expressed in number / mm2. The comparison between samples using rank sum test. Results The positive rate of Hp in 23 cases was 739%. The positive rate of Hp in 35 cases of gastritis was 522%. Histopathological diagnosis of mild inflammation in 30 cases, including active inflammation in 4 cases, 26 cases of inactive inflammation; moderate inflammation in 22 cases, including 15 cases of active inflammation, 7 cases of inactive inflammation; 3 cases of severe inflammation, both For active inflammation. MC was brown in the microscope, clearly identifiable, without degranulation of cells intact, cytoplasm, clear cell membrane, degranulation of the cell membrane rupture, the particles were jet-like effusion, irregular cell shape. MC exists in the mucosal layers, but slightly morphologically?