INTRODUCTIONLeprosy caused by Mvcobacterium leprae （M. leprae）, is a chronic granulomatous disease affecting the skin and peripheral nervous system, which is transmitted through direct contact with nontreated or ina...INTRODUCTIONLeprosy caused by Mvcobacterium leprae （M. leprae）, is a chronic granulomatous disease affecting the skin and peripheral nervous system, which is transmitted through direct contact with nontreated or inadequate treatment patients. Diagnosis of leprosy depends on the clinical signs and symptoms and slit skin smear positivity. However, it＇s sometimes similar with other granulomatous disease caused by mycobacterial infection. Early stage leprosy is difficult to diagnose by clinical criterion alone because the sensitivity of acid-fast bacilli staining is quite low. The polymerase chain reaction-restriction fragment length polymorphism （PCR-RFLP） shows the great advantage in rapid identification and diagnosis for early cases and has a differentiation between leprosy and nonleprosy cases.展开更多
目的探讨热休克蛋白65(heat shock protein 65,HSP65)对视网膜毛细血管粥样硬化的影响。方法 30只成年Wistar大鼠随机分为实验组(n=15)和对照组(n=15),实验组给予高脂高糖饮食建立视网膜毛细血管粥样硬化模型,对照组正常喂养,8周后测定...目的探讨热休克蛋白65(heat shock protein 65,HSP65)对视网膜毛细血管粥样硬化的影响。方法 30只成年Wistar大鼠随机分为实验组(n=15)和对照组(n=15),实验组给予高脂高糖饮食建立视网膜毛细血管粥样硬化模型,对照组正常喂养,8周后测定两组大鼠血清与视网膜组织中HSP65表达情况,电子显微镜下观察视网膜毛细血管粥样硬化情况与斑块情况。结果实验组的总胆固醇、甘油三酯、低密度脂蛋白胆固醇均高于对照组,血糖值也高于对照组,差异均有统计学意义(均为P<0.05)。实验组与对照组的血清中HSP65含量分别为(45.66±8.24)μmol·L^(-1)和(20.67±9.44)μmol·L^(-1),实验组高于对照组(P<0.05);实验组视网膜中的HSP65蛋白相对表达量为0.56±0.11,高于对照组的0.10±0.02,差异有统计学意义(P<0.05)。对照组视网膜毛细血管内皮细胞层和弹力板均完整且贴附紧密;实验组视网膜毛细血管内膜有程度不等的增厚,管腔呈偏心性狭窄,内膜中细胞外基质增多。实验组视网膜毛细血管的血管面积、斑块面积与斑块比例均高于对照组,差异均有统计学意义(均为P<0.05)。结论 HSP65在视网膜毛细血管粥样硬化大鼠的血清与视网膜组织中均呈高表达,可导致视网膜毛细血管的血管面积、斑块面积与斑块比例增加。展开更多
基金The study was supported by a grant from the National Natural Science Foundation of China （No. 81271761）.
文摘INTRODUCTIONLeprosy caused by Mvcobacterium leprae （M. leprae）, is a chronic granulomatous disease affecting the skin and peripheral nervous system, which is transmitted through direct contact with nontreated or inadequate treatment patients. Diagnosis of leprosy depends on the clinical signs and symptoms and slit skin smear positivity. However, it＇s sometimes similar with other granulomatous disease caused by mycobacterial infection. Early stage leprosy is difficult to diagnose by clinical criterion alone because the sensitivity of acid-fast bacilli staining is quite low. The polymerase chain reaction-restriction fragment length polymorphism （PCR-RFLP） shows the great advantage in rapid identification and diagnosis for early cases and has a differentiation between leprosy and nonleprosy cases.
基金Supported by the National High Technology "863" Programs of China(№2002AA217031-2 ) National Natural Science Foundation of China(№30270298) +1 种基金 Natural Science Foundation of Jiangsu (№BK95092309 №BG2001011)
