一组癌基因扩增与胃癌生物学行为的相关分析

目的 :探讨癌基因HER2、mdm 2和C myc扩增与胃癌恶性程度、转移及预后的关系。 方法 :用差异竞争性多聚酶链反应检测胃癌原发灶、癌旁、转移淋巴结及远处脏器转移癌中HER2、mdm 2和C myc的基因变异。结果 :HER2扩增频率在近端胃癌组中明显高于远端胃癌组 (分别是 11/ 13和 5 / 19,P <0 .0 0 5 ) ,侵及浆膜组明显高于未侵及浆膜组 (12 / 18和 4/ 14,P <0 .0 5 )。mdm 2的扩增频率在转移淋巴结中高于胃原发癌 (12 / 2 1和 12 / 32 ,P>0 .0 5 ) ,在 3例淋巴结微转移灶中发现mdm 2扩增。C myc在胃癌原发灶及转移淋巴结中的扩增频率分别是6 / 32和 5 / 2 1,2例远处脏器转移癌中有扩增。结论 :HER2、mdm 2和C myc基因扩增与胃癌的快速生长有关 ,三者联合检测可能为判断胃癌恶性程度、转移及预后提供有价值的信息。     

薄层扫描法测定洁阴洗液中苦参碱的含量

目的：采用双波长薄层扫法测定洁阴洗液中苦参碱的含量。方法：用反射式锯齿扫描法测定,测定波长λｓ＝５２０ｎｍ,参比波长λＲ＝ｎｍ;展开剂为：氯仿－甲醇－氨水（３０：１：０．５）,显色剂为稀碘化铋钾试液。结果：点样量在０．６１３￣３．０６４μｇ范围内呈良好的线性关系,平均回收率为９９．５４％,ＲＳＤ为１．３５％（ｎ＝６）。结论：该法分离效果好,简便,快速,结果准确,适用于该制剂的质量控制。     

百特药液治疗外耳道瘙痒症的临床研究

目的：筛选治疗外耳道瘫痒症的理想药物,以期从根本上治疗该病。方法：采用分组用药,并按双盲法观察疗效。试用药物为百特药液、１．０％酚甘油、氯霉素眼药水,４％硼酸酒精和生理盐水（对照）。结果：四种药物中百特药液对外耳道瘙痒症的治疗效果显著,近期治愈率达８４％。结论：百特药液是临床上治疗外耳道瘙痒症大有希望的药物,值得在临床上推广试用。     

交叉排列结扎术治疗环状混合痔

探讨环状混合痔的手术治疗方法。方法：采用交叉排列结扎术并尽量保留肛管移行区（ＡＴＺ）治疗环状混合痔,选择１６例进行式探讨及疗效观察。肛门麻醉后用胃幽门螺杆菌美蓝「（ＨＰ）ＭＢ」染色液对肛缘至齿线上５．０ｃｍ处染色,ＡＴＺ呈淡蓝色,直肠粘膜深蓝色,肛管皮肤不染色。对内外痔各分为３－５个部位交叉排列式贯穿结扎,结扎点在不同平面上,术中尽量保留淡蓝色的ＡＴＺ,使痔结扎点是保保留的粘膜桥与皮桥呈网状。结果     

Heterosexual anal intercourse, health risks and drug use: a review with special attention to drug users

Research studying HIV risk-taking behaviour has tended to focus on specific populations who are characterized by particular behaviours. Such practices include the extent of unprotected anal intercourse among homosexual men, the sharing of injecting equipment among drug users and unprotected vaginal intercourse among female sex workers. There is often a failure among both researchers and practitioners to address specific risk behaviours outside of the defined risk group. Reviewed here are studies of heterosexual anal intercourse, with special attention to drug users and female sex workers.

Among the general population, the reporting of heterosexual anal intercourse varies greatly across time and cultural groups. However, a body of recent research suggests that, despite some geographical differences, rates in most countries are relatively high. Many studies have also found that associated condom usage is low. Although unprotected anal intercourse is known to be an efficient method for the transmission of HIV and other viral infections, it has rarely been addressed outside cohorts of men who have sex with men. Of particular concern is the interaction of risk behaviours among drug users and women engaging in prostitution, many studies having found high levels of unprotected anal intercourse among these groups. Harm reduction interventions must address all the health risk behaviours their target groups are engaging in, if the challenge of reducing the transmission of HIV and other viral infections is to be met.     

自然排卵与注射人绒毛膜促性腺激素促排卵时阴道脱落细胞雌、孕激素受体的研究

目的：研究排卵期阴道脱落细胞的雌、孕激素受体。方法：自然排卵妇女、注射人绒毛膜促性腺激素（ｈｕｍａｎ ｃｈｏｒｉｏｎｉｃ ｇｏｎａｄｏｔｒｏｐｉｎ,ｈＣＧ）促排卵妇女排卵期阴道脱落细胞,应用免疫组织化学ＡＢＣ 法和图像分析技术进行雌激素受体（ｅｓｔｒｏｇｅｎｒｅｃｅｐｔｏｒ,ＥＲ） 和孕激素受体（ｐｒｏｇｅｓｔｅｒｏｎｅｒｅｃｅｐｔｏｒ,ＰＲ）的定位和定量研究。结果：两组组内排卵前、后阴道脱落细胞ＥＲ比较均无差异;注射ｈＣＧ 后阴道脱落细胞的ＥＲ在排卵前和排卵后均较自然排卵组有明显增高;自然排卵组ＰＲ在排卵后较之排卵前明显升高。结论：排卵前后阴道上皮细胞ＥＲ 无明显变化;ｈＣＧ可提高阴道上皮细胞ＥＲ 水平;排卵后阴道上皮细胞ＰＲ增加。     

激光心肌血管重建术围手术期及术后早期心血管活性肽的变化

Objective: To investigate the changes of cardiovascular active peptides duringperioperation and early stage after transmyocardial laser-revascularization (TMLR). Methods: Tooperate on the chest, make 13 -- 27 channels with COZ laser (home-made machine ) on the anterior,lateral and latter parts of left ventricular wall of the heart in six patients with coronary heart diseasewho could not be treated by PTCA and CABG. The contents of atrial natriuretic peptide (ANP) .brainnatriuretic peptide(BNP)' adrenomedullin (Adm) and endothelin (ET) in pericardial fluid and bloodplasma were determined by immunoradioassay. Results: COmpared with healthy controls, the plasmalevels of ANP. BNP. Adm and ET in patients before TMLR were 11. 0 \ 22. 9. 3. 1 and 1. 3 timeshigher(p < 0. 01 ), respectively. After TMLR the contents of these four peptides in patient plasmareduced gradually. Four weeks after operation, they were 61. 0 % .58. 6 % .63. 4 % and 55. 3 % lower, respectively, than those before TMLR (P < 0. 01 ). Conclusion: TMLR apparently improved thecardiovascular endocrine function of patients with severe heart failure.     

胃癌增殖细胞核抗原表达的研究

目的 探讨增殖细胞核抗原（ＰＣＮＡ）与胃癌生物学行为的关系。方法 应用流式细胞术,对６８例胃癌及癌旁组织细胞中ＰＣＮＡ的表达进行了检测,结果 ＰＣＮＡ在胃癌中的表达明显高于正常胃粘膜及癌旁组织;ＰＣＮＡ指数与胃癌分化化程度及肿瘤浸润深度有关（Ｐ〈０．０５）,结论 检测ＰＣＮＡ的表达有助于发现早期癌变及有判断胃癌的生物学选择性。     

Side effects during continuous epidural infusion of morphine and fentanyl

Respiratory effects, nausea, somnolence, and pruritus were compared during a 48-hr period of continuous epidural morphine (n = 34) and fentanyl (n = 32) infusion in 66 patients following elective total replacement of the hip or knee joint. Respiratory effects were assessed by PaCO2. Side effects were assessed by visual analogue scale and considered to be present when the score was above 30. Assessment was made at preoperative visits then 3, 6, 12, 24, 36, and 48 hr after the epidural injection. The bolus dose and subsequent infusion rate were 3,900 +/- 1,300 micrograms and 427 +/- 213 micrograms.hr-1 for morphine, and 85 +/- 46 micrograms and 56 +/- 27 micrograms.hr-1 for fentanyl. Pain relief was similar in both groups. In the morphine group, PaCO2 elevation and nausea occurred over a period of more than 12 hr (P less than 0.05). In the fentanyl group, there was no PaCO2 change, and nausea was confined to the first few hours. Nausea was more severe (P less than 0.01 at six hours and more frequent (24 hr cumulative incidence, 53 vs 28%, P less than 0.05) in the morphine group. Somnolence was prominent within several hours in two-thirds of patients in both groups. Somnolence continued to decline thereafter in the morphine group, but it was demonstrable in approximately half of the patients throughout the second day in the fentanyl group. The incidence was higher in the fentanyl group at the 48th hr (P less than 0.05).(ABSTRACT TRUNCATED AT 250 WORDS)     

HPLC测定复方松泰洗剂中醋酸氯己定含量

建立HPLC法测定复方松泰洗剂中醋酸氯己定的含量。用YWGC18柱 ,以乙腈 -水 -三乙胺 (2 9∶71∶0 5 ,用磷酸调pH至 3 0 )为流动相 ,流速 1ml·min- 1,检测波长 2 5 4nm。醋酸氯己定在 0 716～ 3 5 8μg范围内线性关系良好 ,r =0 9998,平均回收率 99 2 %。本法适用于复方松泰洗剂的质量控制。