重组人催乳素(rhPRL)在huPBL/SCID嵌合模型中对人直肠癌的治疗效应及免疫机理初探

通过体内实验进一步证实rhPRL对机体免疫功能的调节作用,以及用于过继细胞免疫治疗的可能性。我们选用CB17 SCID纯系小鼠,腹腔注入人结肠腺癌细胞(HT29),2小时后腹腔注入尼龙毛纯化的人淋巴细胞(T/NK细胞),同时开始进行rhPRL治疗,并设HBSS对照和rhIL-2治疗对照组。结果表明,rhPRL在体内外均无直接抗癌效应,反而可促进肿瘤生长。当SCID荷瘤鼠同时移植入人的T/NK细胞时出rhPRL可明显提高T/NK细胞的抗癌效果,生存期明显延长(P<0.05)。平均生存期由70.4天延至112.1天,在对照组全部死亡时(d105),rhPRL治疗组有60％存活,且在实验终止时(>160天)仍有40％存活。分析其抗癌机理发现,rhPRL体外可直接促进人T/NK细胞增殖,其分泌上清可抑制肿瘤生长,同时发现人T/NK细胞与HT29共育4小时中rhPRL亦可直接促进杀伤活性。     

p53蛋白在肺癌的表达及临床意义

目的　研究 p5 3蛋白在肺癌的表达情况及临床意义。方法　应用 SABC免疫组化技术 ,研究 6 9例各型肺癌组织 p5 3蛋白表达。结果　p5 3蛋白表达的总阳性率为 5 9.4% ,其中鳞癌5 6 .7% ,腺癌 73.7% ,小细胞癌 6 1.5 % ,大细胞癌 40 %。支气管粘膜上皮异型增生和鳞癌有相同的p5 3蛋白表达 ,而正常组织细胞中未见 p5 3蛋白表达。结论　提示 p5 3蛋白表达可能是支气管粘膜上皮密变的早期改变 ,p5 3蛋白是肺癌细胞的重要标志物。     

LOSS OF HETEROZYGOSITY ON CHROMOSOME 13 IN SQUAMOUS CELL CARCINOMAS OF THE LARYNX

ＬＯＳＳＯＦＨＥＴＥＲＯＺＹＧＯＳＩＴＹＯＮＣＨＲＯＭＯＳＯＭＥ１３ＩＮＳＱＵＡＭＯＵＳＣＥＬＬＣＡＲＣＩＮＯＭＡＳＯＦＴＨＥＬＡＲＹＮＸＢａｉＳｕｊｕａｎ白素娟ＺｈａｎｇＸｕｅ张学ＷａｎｇＪｕｎ王筠ＳｕｎＫａｉｌａｉ孙开来ＦｅｉＳｈｅｎｇｚｈｏｎ...     

珍珠口泰药膜抑菌、抗口腔溃疡作用及毒理学研究

珍珠口泰药膜能明显缩短电灼烧豚鼠口腔粘膜溃疡愈合时间,改善溃疡症状;轻度抑制甲型溶血性链球菌。毒理学实验显示,该药对口腔粘膜及皮肤给药均无毒?无刺激?无过敏反应,小鼠最大耐受量为4g·kg^-1·d^-1,是人临床用量的7272.73倍,未见毒性反应。     

利心胶囊治疗冠心病34例临床研究

利心胶囊治疗组对冠心病（ＣＨＤ）各项主症改善总有效率达９１．２％，对心电图改善总有效率达８０．９％，对高血脂有明显降低作用。疗效优于双嘧哌胺醇。     

疏肝理脾片抗大鼠免疫性肝纤维化研究

用牛血清白蛋白（ＢＳＡ）造成大鼠免疫损伤性肝纤维化模型，观察疏肝理脾片对肝纤维组织增生程度、肝羟脯氨酸（Ｈｙｐ）含量和血清透明质酸（ＨＡ）及肝功能的影响。结果表明疏肝理脾片能明显降低肝Ｈｙｐ含量，减轻肝纤维组织增生程度，并较好地提高血清白蛋白水平     

乙状结肠造口术并发症73例分析

（目的）探讨乙状结肠造口术并发症的防治。（方法）1985年至1995年间进行了202例乙状结肠造口术。（结果）与造口有关的并发症73例，包括造口周围炎35例、造口狭窄21例、造口结肠旁疝6例、造口出血4例、造口肠管回缩3例、造口肠管脱垂2例、造口肠管坏死2例。73例并发症病人经治疗均痊愈出院。（结论）重视手术操作能降低并发症的发生率，术后加强观察和护理，早期发现和处理是提高治疗成功率的关键。     

Incidence of cervical squamous intraepithelial lesions in HIV-infected women

CONTEXT: Women infected with human immunodeficiency virus (HIV) are at increased risk for cervical squamous intraepithelial lesions (SILs), the precursors to invasive cervical cancer. However, little is known about the causes of this association. OBJECTIVES: To compare the incidence of SILs in HIV-infected vs uninfected women and to determine the role of risk factors in the pathogenesis of such lesions. DESIGN: Prospective cohort study conducted from October 1,1991, to June 30, 1996. SETTING: Urban clinics for sexually transmitted diseases, HIV infection, and methadone maintenance. PARTICIPANTS: A total of 328 HIV-infected and 325 uninfected women with no evidence of SILs by Papanicolaou test or colposcopy at study entry. MAIN OUTCOME MEASURE: Incident SILs confirmed by biopsy, compared by HIV status and risk factors. RESULTS: During about 30 months of follow-up, 67 (20%) HIV-infected and 16 (5%) uninfected women developed a SIL (incidence of 8.3 and 1.8 cases per 100 person-years in sociodemographically similar infected and uninfected women, respectively [P<.001]). Of incident SILs, 91% were low grade in HIV-infected women vs 75% in uninfected women. No invasive cervical cancers were identified. By multivariate analysis, significant risk factors for incident SILs were HIV infection (relative risk [RR], 3.2; 95% confidence interval [CI], 1.7-6.1), transient human papillomavirus (HPV) DNA detection (RR, 5.5; 95% CI, 1.4-21.9), persistent HPV DNA types other than 16 or 18 (RR, 7.6; 95% CI, 1.9-30.3), persistent HPV DNA types 16 and 18 (RR, 11.6; 95% CI, 2.7-50.7), and younger age (<37.5 years; RR, 2.1; 95% CI, 1.3-3.4). CONCLUSIONS: In our study, 1 in 5 HIV-infected women with no evidence of cervical disease developed biopsy-confirmed SILs within 3 years, highlighting the importance of cervical cancer screening programs in this population.     

银质针疗法治疗顽固性软组织损伤226例

软组织损伤是人体骨髂肌、筋膜、韧带、关节囊、骨膜以及脂肪组织等运动系统的软组织损伤性病变的简称。笔者师从北京301医院王福根教授学习银质针疗法，自2001年起共收治顽固性软组织损伤226例，疗效显著，报告于下。     

18F-FDG符合线路SPECT显像在胃肠道恶性肿瘤术后的应用

目的探讨^18F—FDG符合线路SPECT显像在探测胃肠道恶性肿瘤术后复发和远处转移中的应用价值。方法24例胃肠道恶性肿瘤术后患者，其中食管癌4例，胃癌7例，结肠癌6例，直肠癌7例，运用SIEMENS ECAM^deut SPECT仪进行^18F—FDG显像。结果^18F—FDG显像诊断胃肠道恶性肿瘤术后转移和复发的灵敏度为94．7％，特异性80．0％，准确性91．7％。在^18F—FDG显像真阳性18例中，2例为局部复发，5例为局部复发伴转移，11例为远处转移。在有复发的7例患者中，5例^18F—FDG显像结果与CT检查结果一致，2例CT检查局部未见异常，在有转移的16例患者中，共检出转移灶55处。结论符合线路SPECT仪^18F—FDG显像是检测胃肠道恶性肿瘤术后复发和转移的敏感而有效的方法。