充血性心力衰竭心气、阳虚证与肿瘤坏死因子-α、白细胞介素-1β和白细胞介素-10的关系

目的:探讨充血性心力衰竭(CHF)患者心气、阳虚证与肿瘤坏死因子-α(TNF-α)、白细胞介素-1β(IL-1β)及白细胞介素-10(IL-10)的关系。方法:选取CHF心气、阳虚证住院患者67名,分别进行NYHA心功能分级,并行心脏多普勒、血清TNF-α、IL-1β及IL-10等检查。结果:心气虚证组患者心功能分级以舒张功能不全和心功能Ⅰ级、Ⅱ级为多,心阳虚证组患者以心功能Ⅲ级、Ⅳ级为多(Ridit分析,P<0.01);心气虚证组患者E/A值、EF值高于心阳虚证组(P<0.01);心阳虚证组患者血清TNF-α、IL-1β水平高于心气虚证组(P<0.01或P<0.05);心阳虚证组患者血清IL-10水平低于心气虚证组(P<0.01)。结论:TNF-α、IL-1β与IL-10可能在CHF心气虚证向心阳虚证发展过程中起重要的作用,可以作为心气虚证、心阳虚证微观辨证的指标。     

经尿道前列腺汽化与开放性手术对老年前列腺增生患者术后性功能的影响

目的评价经尿道前列腺汽化(TUVP)和开放性手术对老年前列腺增生(BPH)患者术后性功能的影响.方法分别统计分析经尿道前列腺汽化组(TUVP组)、耻骨上经膀胱前列腺切除组(SPP组)和耻骨后保留尿道前列腺切除组(Madigan组)术后6个月、1 2个月勃起障碍(ED)与逆行射精(RE)的发生率.结果术后6个月ED的发生率在TUVP组(n=52)、SPP组(n=46)、Madigan组(n=32)分别为1 3.4%(7/52)、1 5.2%(7/46)、1 2.5%(4/32),术后12个月ED的发生率分别为11.5%(6/52)、1 5.2%(7/46)、1 2.5%(4/32),术后6个月、1 2个月RE的发生率在TUVP组、SPP组、Madigan组分别为46.2%(24/5 2)、39.1%(1 8/46)、9.3%(3/32).结论TUVP与传统开放性手术SPP及Madigan手术相比较对勃起障碍的影响无统计学差异(p＞0.05),但逆行射精的发生率较Madigan手术组高,提示对术后射精功能有较大影响.     

雌孕激素合用对去卵巢大鼠骨质疏松的预防作用

目的　观察炔诺酮和炔雌醇联合应用对去卵巢大鼠骨质疏松的预防作用。方法　 4个半月龄大鼠双侧卵巢去除术后预防用药 90d。用骨组织形态计量学方法 ,测定大鼠胫骨近端松质骨静态参数和动态参数 ,观察骨和尿中有机质和无机质的含量 ,血清生化指标和器官指数。结果　炔诺酮6 0 μg·kg-1·d-1和炔雌醇 3 5 μg·kg-1·d-1联合应用可抑制去卵巢大鼠的破骨细胞活性 ,完全对抗其骨转化率增高和骨量丢失的骨质疏松症状 ,同时可使去卵巢大鼠的骨有机质含量增加和尿羟脯氨酸排出量减少。结论　炔诺酮和炔雌醇联合应用可预防去卵巢大鼠骨质疏松     

人前列腺癌细胞PC-3M亚系u-PAR基因表达的分析

目的 为研究与人前列腺癌细胞(PC-3M)侵袭能力相关的靶分子。方法 采用有限稀释法分离单克隆细胞株，并应用单层细胞侵袭等实验鉴定各亚系的体外侵袭能力；借助RT-PCR和免疫组化的方法，分别在转录和翻译水平检测5株侵袭能力不同的PC-3M亚系尿激酶型纤溶酶原激活物受体(u-PAR)的表达。结果 高侵袭亚系u-PAR基因mRNA的表达和蛋白质水平均明显高于低侵袭亚系。结论 PC-3M亚系u-PAR的高表达与其较强的侵袭能力密切相关，而u-PAR可能是抑制高侵袭亚系侵袭效应的一个重要靶分子。     

Expression of nm23 protein in human osteosarcoma in relationship with early metastasis

Nm23 protein expression was analyzed by immunohistochemical staining using formalin-fixed, paraffin-embedded sections from 39 cases with osteosarcomas and compared with the histologic findings and early metastasis for the purpose of detecting nm23 expression in osteosarcoma and elucidating the clinical significance of its expression. Immunoreactivity of nm23 protein was detected in 48.7% of the total cases. There was no statistical difference between nm23 expression and early metastasis, but there was a trend for cases with nm23 expression to progress to early metastasis within 1 year after operation. The role of nm23 as a tumor metastasis suppressor in osteosarcomas appeared less prominent.     

中国发生艾滋病毒感染流行的危险因素

１９８５年，我国报告的首例艾滋病（ＡＩＤＳ）病人是外国旅游者，到１９８９年，在云南西南边境地区吸毒者中首次发现艾滋病病毒（ＨＩＶ）感染的流行。１９９４年起，在我国其他地区报告的ＨＩＶ感染者明显增加，截至１９９７年１０月，我国共报告ＨＩＶ感染者８３０３...     

颅底恶性肿瘤切除术后组织缺损一期修复的探讨──附18例报告

目的：为解决颅底恶性肿瘤的广泛切除或根治性切除术后所致的颅底骨与软组织缺损，预防此缺损所致的颅内感染，脑脊液漏等并发症。方法：在术中应用了斜方肌下部岛状肌皮瓣，胸大肌下部岛状肌皮瓣，颞肌复合组织瓣等各种修复方法分别对18例患者进行了一期修复。结果：修复成功率73．2％（13例），术后并发症27．8％（5例）.结论：根据组织缺损的不同大小、范围、程度、部位和不同的手术入路来选择不同的修复方法，关系到手术成败。     

生命1号健脑强身及促骨生长的实验研究

采用水迷宫法、穿梭箱法、避暗法、跳台法观察了生命1号对小鼠学习、记忆、巩固的影响。灌胃给生命1号可改善东莨菪碱、樟柳碱致小鼠记忆获得障碍。生命1号能明显提高单核细胞吞噬功能，显著增加小鼠血清溶血素的含量，促进T淋巴细胞的转化。除此之外，还能明显地增加阳虚大鼠股骨的重量、长度、直径及皮质厚度；提高血清钙、磷水平；降低血清碱性磷酸酶的含量，具有促进骨骼生长的作用。     

中药对人工晶状体植入术后虹膜睫状体炎的治疗效果

目的：探讨中药对人工晶体状体植入术后虹膜睫状体炎的治疗效果。方法：对２４例（２９只眼）人工晶状体植入术后虹膜睫状体炎患者，在后马托品或托品酰胺滴眼散瞳的情况下，用口服血栓通胶囊和凉血清热泻肝汤加减进行了治疗和为期３个月￣１２个月的随访观察。结果：治疗时间最短为５天，最长者２１天，平均１１天。治愈２２例２７只眼（９３．１０％），未见复发，视力达０．６以上。好转２例２只眼（６．９％）。结论：在应用散瞳     

Inhibition of growth and induction of apoptosis in human cancer cell lines by tea polyphenols

In order to study the biological activities of tea preparations and purified tea polyphenols, their growth inhibitory effects were investigated using four human cancer cell lines. Growth inhibition was measured by [3H]thymidine incorporation after 48 h of treatment. The green tea catechins (-)-epigallocatechin-3-gallate (EGCG) and (-)- epigallocatechin (EGC) displayed strong growth inhibitory effects against lung tumor cell lines H661 and H1299, with estimated IC50 values of 22 microM, but were less effective against lung cancer cell line H441 and colon cancer cell line HT-29 with IC50 values 2- to 3- fold higher. (-)-Epicatechin-3-gallate, had lower activities, and (-)- epicatechin was even less effective. Preparations of green tea polyphenols and theaflavins had higher activities than extracts of green tea and decaffeinated green tea. The results suggest that the growth inhibitory activity of tea extracts is caused by the activities of different tea polyphenols. Exposure of H661 cells to 30 microM EGCG, EGC or theaflavins for 24 h led to the induction of apoptosis as determined by an annexin V apoptosis assay, showing apoptosis indices of 23, 26 and 8%, respectively; with 100 microM of these compounds, the apoptosis indices were 82, 76 and 78%, respectively. Incubation of H661 cells with EGCG also induced a dose-dependent formation of H2O2. Addition of H2O2 to H661 cells caused apoptosis in a manner similar to that caused by EGCG. The EGCG-induced apoptosis in H661 cells was completely inhibited by exogenously added catalase (50 units/ml). These results suggest that tea polyphenol-induced production of H2O2 may mediate apoptosis and that this may contribute to the growth inhibitory activities of tea polyphenols in vitro.