胃癌患者白细胞介素-1B基因多态性及序列测定的初步研究

目的：检查国人胃癌中IL-1B基因启动子区域-31C／T多态性，初步分析其基因型与胃癌的相关性。方法：应用聚合酶链反应一限制性片段长度多态性(PCR—RFLP)分析技术，对收集的50例胃癌癌旁正常组织和50例正常健康人外周血标本，提取DNA进行PCR扩增，然后用Alu Ⅰ限制性内切酶对PCR产物进行消化，经琼脂糖凝胶电泳对IL-1B基因多态性进行分析，并对C／C和T／T进行序列测定。结果：IL-1B基因-31C等位基因频率在正常人和胃癌患者中分剐为75％和53％，-31T等位基因频率则分别为25％和47％。正常人和胃癌患者中3种基因型频率分别为-31C／-31C：56％(28／50)和30％(15／50)；-31C／-31T：38％(19／50)和46％(2．3／50)；-31T／-31T：6％(3／50)和24％(12／50)。携带-31T等位基因增加罹患胃癌的危险性，-31C／-31T杂合子和-31T／-31T纯合子分别增加2．3和7．5倍。并经DNA序列测定证实在IL-1B基因启动子区域有-TATA框多态，即-31碱基发生C—T转换。结论：IL-1B基因启动子区域-31C／T多态性与国人胃癌易患性相关。     

趋化生长因子受体-7与结直肠癌淋巴管生成的关系第14期

目的 通过检测结直肠癌中趋化生长因子受体-7(CCR7)与血管内皮生长因子-D(VEGF-D)的表达,探讨二者的关系及临床意义.方法 应用免疫组化法检测124例结直肠患者和70例正常结肠黏膜中CCR7、VEGF-D和D2-40的表达.结果 CCR7和VEGF-D在结直肠癌中表达的阳性率明显高于正常结肠黏膜组织,D2-...     

低分子肝素钙治疗过敏性紫癜及预防肾损害的作用

目的 观察低分子肝素钙治疗过敏性紫癜(HSP)及预防过敏性紫癜肾损害的临床疗效.方法 采用前瞻性随机对照法,将103例HSP患儿分为肝素组(57例)和对照组(46例),肝素组在一般综合治疗基础上加用低分子肝素钙100～125 U/(kg·次)静脉滴注,1次/d,连用10～14 d.观察两组患儿症状、体征消失时间,皮疹反复发生率,治疗前、后D-二聚体及早期肾损害指标的变化.结果 肝素组皮肤紫癜、关节肿痛、腹痛的消退时间分别为(15.23±3.14)d、(6.80±1.96)d、(6.68±3.42)d,较对照组[(17.11±4.79)d、(8.30±2.67)d、(8.59±4.09)d]明显缩短,差异有显著性(P＜0.05);皮疹反复发生率为14.6%,较对照组(39.1%)低,差异有非常显著性(P＜0.01);随访3个月时D-二聚体阳性率为15.8%,较对照组(37.0%)降低,差异有显著性(P＜0.05);早期肾损害指标尿中微量蛋白、β2微球蛋白、N-乙酰-β-D-氨基葡萄糖苷酶水平分别为(12.22±3.92)mg/L、(5.35±0.51)mg/L、(8.12±1.65)U/L,较对照组[(14.15±5.17)mg/L、(6.54±2.67)mg/L、(10.04±2.60)U/L]明显降低,差异有显著性(P＜0.01,P＜0.05).结论 低分子肝素缩短HSP病程,并可有效预防过敏性紫癜肾损害的发生.     

低分子肝素钙治疗过敏性紫癜及预防肾损害的作用

Objective To investigate the curative effect of low molecular heparin calcium on Henoch-Schoenlein purpura(HSP) and the preventive effect on Henoch-schonlein purpura nephritis.Methods One hundred and three patients with HSP were enrolled in the study and divided randomly into two groups,heparin group(57 cases) and control group(46 cases).Heparin group received low molecular heparin calcisymptom remission time,the incidence of recurrent skin rash were recorded.The contents of D-dipolymer and the three indicators of early renal damage were detected before and after the treatment.Results The remission times of purpura,joint pain and abdominal pain in heparin group[(15.23±3.14) d,(6.80±1.96) d and(6.68±3.42) d]were significantly shorter than those of control group[(17.11±4.79) d,(8.30±2.67)d,(8.59±4.09) d](P ＜0.05).The incidence of recurrent skin rash in heparin group(14.6%) was significantly lower than that of control group(39.1%)(P＜0.01).Compared to control group,the positive rate of D-dipolymer in heparin group was higher(15.8% vs 37.0%),and the urine levels of mALB,β2-MG and NAG were significantly decreased[(12.22±3.92) mg/L,(5.35±0.51) mg/L,(8.12±.65) U/L vs (14.15±5.17) mg/L,(6.54±2.67) mg/L,(10.04±2.60) U/L]during 3 months after treatment(P＜0.01,P ＜0.05).Conclusion Low molecular heparin can shorten the course of HSP and prevent the development of Henoch-Schonlein purpura nephritis.     

低分子肝素钙治疗过敏性紫癜及预防肾损害的作用

Objective To investigate the curative effect of low molecular heparin calcium on Henoch-Schoenlein purpura(HSP) and the preventive effect on Henoch-schonlein purpura nephritis.Methods One hundred and three patients with HSP were enrolled in the study and divided randomly into two groups,heparin group(57 cases) and control group(46 cases).Heparin group received low molecular heparin calcisymptom remission time,the incidence of recurrent skin rash were recorded.The contents of D-dipolymer and the three indicators of early renal damage were detected before and after the treatment.Results The remission times of purpura,joint pain and abdominal pain in heparin group[(15.23±3.14) d,(6.80±1.96) d and(6.68±3.42) d]were significantly shorter than those of control group[(17.11±4.79) d,(8.30±2.67)d,(8.59±4.09) d](P ＜0.05).The incidence of recurrent skin rash in heparin group(14.6%) was significantly lower than that of control group(39.1%)(P＜0.01).Compared to control group,the positive rate of D-dipolymer in heparin group was higher(15.8% vs 37.0%),and the urine levels of mALB,β2-MG and NAG were significantly decreased[(12.22±3.92) mg/L,(5.35±0.51) mg/L,(8.12±.65) U/L vs (14.15±5.17) mg/L,(6.54±2.67) mg/L,(10.04±2.60) U/L]during 3 months after treatment(P＜0.01,P ＜0.05).Conclusion Low molecular heparin can shorten the course of HSP and prevent the development of Henoch-Schonlein purpura nephritis.     

喉癌p16区域的杂合性丢失和微卫星序列不稳定性分析

目的 缩小喉癌抑癌基因的寻找范围,探讨Ｐ１６基因在喉癌发生中的作用。方法 选择Ｐ１６基因附近５个微卫星多态标记对６０例喉癌进行杂合性丢失和微卫星序列不稳定性分析。结果 ５个标记在喉癌中杂合性丢失频率均不高,最高仅达２３．１％,但２个标记的微卫星序列不稳定性的频率较高,其中示记微卫星序列恶性循环频率高达４６．１％。结论 提示Ｐ１６基因在喉癌的发生中不以缺失为主,在Ｄ９Ｓ１７５２附近可能存在参与喉癌演