Pivotal study of iodine-131-labeled chimeric tumor necrosis treatment radioimmunotherapy in patients with advanced lung cancer.

PURPOSE: Tumor necrosis treatment (TNT) uses degenerating tumor cells and necrotic regions of tumors as targets for radioimmunotherapy. Previous studies in animal tumor models and clinical trials have demonstrated that when linked to the therapeutic radionuclide iodine-131, recombinant chimeric TNT antibody ((131)I-chTNT) can deliver therapeutic doses to tumors regardless of the location or type of malignancy. Therapeutic efficacy and toxicity of (131)I-chTNT in advanced lung cancer patients were studied in this pivotal registration trial. PATIENTS AND METHODS: Patients with advanced lung cancer were treated with systemic or intratumoral injection of (131)I-chTNT in eight oncology centers in China. The objective response rate (ORR) was assessed as the primary end point. RESULTS: All 107 patients who were entered onto the study and completed therapy had experienced treatment failure after prior radiotherapy or chemotherapy a mean of three times. The results showed an ORR of 34.6% (complete response, 3.7%; partial response, 30.8%; no change, 55.1%; and progressive disease, 10.3%) in all patients and 33% in 97 non-small-cell lung cancer patients. A biodistribution study demonstrated excellent localization of the radioactivity in tumors in both systemically and intratumorally injected patients. The most obvious adverse side effect was mild and reversible bone marrow suppression. CONCLUSION: Radioimmunotherapy with (131)I-chTNT was well tolerated and can be used systemically or locally to treat refractory tumors of the lung.     

乳腺癌干细胞相关亚群细胞周期分析

目的：流式细胞仪分选乳腺癌细胞系MCF-7的肿瘤干细胞相关SP亚群（side population，SP），并检测SP和非SP细胞周期。方法：MCF-7细胞悬液经Hoeehst33342染色，流式细胞仪分选SP和非SP后，乙醇固定，PI染色，流式细胞仪检测细胞周期。结果：SP细胞在MCF-7细胞中占4％，Vempamil阻断后比例减为0．5％。SP细胞中S／G2／M期细胞最低，仅占7．9％，而非SP细胞增殖期比例相对高，S／G2／M期细胞约占34．2％。未分选细胞中S／G2／M期细胞比例居中，为22．9％。结论：人乳腺癌细胞系MCF-7含SP亚群，比例约为4％，且SP细胞多处于静止期，具有一般干细胞的特性。     

中华眼镜蛇毒组分C与几种临床化疗药体外对人胶质瘤株作用的差异研究

背景与目的：脑胶质瘤是常见的颅内肿瘤，占脑恶性肿瘤的50％以上，化疗作为综合治疗的一项重要手段，仍存在效果不理想、易耐药等问题。本文就研究中华眼镜蛇毒组分C（Fraction C from Naja Naja Actra Venom，NNAV．FC）体外对人胶质瘤细胞株U-251的细胞毒性作用，并与几种临床脑肿瘤化疗用药进行比较，以求为脑胶质瘤的治疗提供新的化疗药物。方法：应用MTT法．观察NNAV．FC人胶质细胞瘤株U-251的细胞毒作用、量效关系等，并与依托泊苷（vp=16、鬼臼乙叉苷、Vepesid）、卫萌（替尼泊苷、鬼臼甲叉甙vm-26，Teniposide）、顺铂（Cisplatin、CDDP）、卡铂（Carboplatin）、五氟尿嘧啶（5-FU）等对上述细胞的细胞毒作用进行比较。结果：FC对人胶质瘤细胞有明显的抑制作用，其24及48h的IC50分别为5．76和7．19μg／ml，且呈良好的量效关系。结论：在本实验中，FC能有效抑制胶质瘤细胞株的生长，抑制作用与浓度呈正相关，与临床胶质瘤化疗药相比较。FC是有效地抑制胶质瘤细胞生长的药物。     

Treatment of 1 case of brachial plexus injury by acupuncture of detecting peripheral nerve plus Tuina

Medical History A male patient, 37 years old, was wounded on the lateral and superior aspect of the right chest by the knife on Nov. 16 of 2003. The physical examination showed there was a wound 2 cm in length on the lateral and superior aspect of the right chest with active bleeding, the patient could flex and extend the right elbow, wrist,palm and metacarpophalangeal articulation, but felt numbness of five digits of right hand.     

Observations on the therapeutic effect of acupuncture plus tuina on retention of urine

将118例尿潴留患者随机分为2组,即针灸推拿治疗组和药物注射治疗组分别进行治疗观察.结果2组疗效有显著差异.并对2组治疗效果、治疗次数、疗效影响等比较分析,提示针灸推拿组显效率明显优于药物注射组.反映针灸配合推拿治疗尿潴留是临床一种较好的治疗方法.     

米非司酮致子宫内膜简单型增生二例临床分析

近年来，随着米非司酮应用的日趋广泛，其并发症亦不断增加，尤其是一些少见的以及一些始料未及的并发症，更应引起注意。我院2004年门诊诊治的二例病例，1例为子宫肌瘤剜除术后，1例为子宫腺肌症，在连续口服米非司酮4～6个月后，出现不规则的阴道多量流血，后经诊断性刮宫，二例病理检查均提示为子宫内膜简单型增生。现报道如下：     

Associations between polymorphisms in the vitamin D receptor and breast cancer risk.

Biological and epidemiologic data suggest that vitamin D levels may influence breast cancer development. The vitamin D receptor (VDR) is a crucial mediator for the cellular effects of vitamin D and additionally interacts with other cell-signaling pathways that influence cancer development. Because functional data exist on FOK1 and previous studies have suggested a relation between BSM1 and breast cancer risk, we evaluated the associations of the FOK1 and BSM1 VDR polymorphisms and breast cancer risk. In a case-control study nested within the Nurses' Health Study, we genotyped 1,234 incident cases (diagnosed between return of a blood sample in 1989-1990 and June 1, 2000) and 1,676 controls for FOK1, and 1,180 cases and 1,547 controls for BSM1. We observed a significantly increased risk of breast cancer among carriers of the ff genotype of FOK1 (multivariate odds ratio, 1.34; 95% confidence intervals, 1.06-1.69) compared with those with FF. We did not observe an association between polymorphisms in BSM1 and breast cancer risk (multivariate odds ratio, 0.93; 95% confidence intervals, 0.72-1.20) for BB versus bb). The FOK1 association did not vary significantly by menopausal status, estrogen, and progesterone receptor status of the tumors, or plasma levels of 25 hydroxyvitamin D or 1,25 dihydroxyvitamin D. Our results suggest that the VDR may be a mediator of breast cancer risk and could represent a target for cancer prevention efforts.     

我国“审方药师”的现状分析与建议

目的:培养合格的审方药师,确保患者合理用药。方法:分析我国审方药师的现状,提出培养合格审方药师的具体建议。结果:目前,我国审方药师队伍普遍存在学历、职称偏低,专业知识、医学知识不足,成员匮乏等现象。结论:必须充分认识审方药师的重要性,提高审方药师的准入条件,制订审方药师的业务标准,明确审方药师的责任,加大审方药师的培养力度及增加审方药师的数量,方可确保患者合理用药。     

磷酸氟达拉滨的HPLC测定

目的:建立用HPLC测定磷酸氟达拉滨的方法.方法:采用YMG ODS-AQ色谱柱,梯度洗脱法,A泵用0.68%的KH2PO4的水溶液(用磷酸调pH至3.0),B泵为50%(V/V)乙腈水溶液,流速为1.0 ml·min-1,检测波长为263 nm.结果:磷酸氟达拉滨在10～80μg·ml-1范围内线性关系良好(r=0.999 8),平均回收率为99.6%,RSD=0.5%(n=5).结论:该方法准确、可靠,灵敏度高,重复性好.