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梅毒螺旋体TP15抗原在梅毒诊断中的应用价值
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作者 许志晟 朱伯平 黄思聪 《中国实用医药》 2021年第29期204-207,共4页
目的评估梅毒螺旋体TP15抗原在梅毒血清学诊断中的应用价值。方法聚合酶链式反应(PCR)扩增获得梅毒螺旋体TP15基因片段,构建TP15基因的原核表达载体,SDS-PAGE检测TP15蛋白表达水平,Ni-NTA亲和层析法纯化TP15蛋白,Western blot鉴定其免... 目的评估梅毒螺旋体TP15抗原在梅毒血清学诊断中的应用价值。方法聚合酶链式反应(PCR)扩增获得梅毒螺旋体TP15基因片段,构建TP15基因的原核表达载体,SDS-PAGE检测TP15蛋白表达水平,Ni-NTA亲和层析法纯化TP15蛋白,Western blot鉴定其免疫反应性;使用TP15重组蛋白建立间接酶联免疫吸附试验(ELISA),检测44份梅毒螺旋体颗粒凝集试验(TPPA)阳性血清和44份TPPA阴性血清,评价TP15-ELISA与TPPA的符合率。结果PCR扩增获得约0.5 kb的基因片段。成功构建了原核表达载体pET28b-TP15。TP15在大肠杆菌中以包涵体形式表达,分子量约20 kDa。Western blot结果表明TP15蛋白能够与梅毒TPPA阳性血清发生特异性反应,与TPPA阴性血清不发生反应。TPPA与TP15-ELISA检测梅毒特异性抗体的符合率比较,差异无统计学意义(P>0.05)。结论TP15抗原在梅毒血清学诊断中具有潜在的临床应用价值。 展开更多
关键词 梅毒螺旋体 TP15 梅毒诊断
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Clinical characteristics and imaging manifestations of AIDS complicated with disseminated Penicillium marneffei infection 被引量:2
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作者 LU Pu-xuan zhu Wen-ke +5 位作者 ZHAN Neng-yong LIU Yan CHEN Xin-chun YE Ru-xin CAI Li-sheng zhu bo-ping 《中国介入影像与治疗学》 CSCD 2006年第1期63-68,共6页
Objective To investigate the clinical characteristics and imaging manifestations of AIDS complicated with disseminated Penicillium marneffei (PM) infection. Methods A total of 12 patients with AIDS complicated with di... Objective To investigate the clinical characteristics and imaging manifestations of AIDS complicated with disseminated Penicillium marneffei (PM) infection. Methods A total of 12 patients with AIDS complicated with disseminated PM infection were collected and the symptoms, signs, laboratory examination results and image manifestations of these patients were analyzed retrospectively. Results (1) The diagnosis of PM infection in all the 12 cases were confirmed by peripheral blood culture. All the 12 cases (100%) had irregular fever (38-41 ) and enlarged lymph nodes, 8 cases (66%) had skin rashes; 8 cases (66%) had hepatomegaly; 9 cases (75%) had splenomegaly while 8 cases (66%) had anemia. (2) Imaging manifestation: Five cases manifested bilateral pulmonary disseminated miliary nodular shadows or lattice signs; 1 case showed enlarged hilar lymph node and 2 cases showed patchy shadow with pleuritis. One case presented sub-pleural curve line shadow at the posterior part of the right lower lung, and adhesion between the intestinal wall and intestinal mesentery in mass form in the abdomen by CT examination. Conclusion Patients suffering from AIDS (CD4 T lymphocytes <50/ u L) with impaired immunity might be susceptible to complication of disseminated PM infection, which presents mainly damage of multiple organs and symptoms such as fever; enlargement of liver, spleen and lymph nodes, as well as specific skin maculopapular rashes. Imaging manifestations in the lungs were revealed as miliary nodular shadows and lattice-like shadows. Intensified abdominal CT might reveal presence of several enlarged postperitoneal lymph nodes and intestinal adhesion in shape of "cakes". 展开更多
关键词 艾滋病 免疫缺陷综合征 青霉素 治疗
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