血清IL-6和TNFα监测老年肺癌病情进展及预后的临床研究

为研究细胞因子白细胞介素－６（ＩＬ－６）和肿瘤坏死因子α（ＴＮＦα）与老年肺癌病情和预后的关系,采用ＥＬＩＳＡ法检测了４０例老年肺癌患者血清ＩＬ－６和ＴＮＦα的水平。结果表明：１．老年肺癌患者血清ＩＬ－６和ＴＮＦα水平随着临床分期的进展而升高;有远处转移的晚期患者的血清ＩＬ－６和ＴＮＦα水平明显高于无转移的早期患者;２．化疗有效、病情稳定和缓解的患者血清ＩＬ－６和ＴＮＦα水平明显下降;化疗无效、病情进展者血清ＩＬ－６和ＴＮＦα的水平则升高;３．患者死亡前３个月内血清ＴＮＦα水平有持续升高的趋势。提示ＩＬ－６和（或）ＴＮＦα水平的升高可作为老年肺癌病人预后不良和病情进展的指标。     

p16与c-myc基因表达产物在肝细胞癌及癌旁组织中的表达及临床意义

目的：探讨ｐ１６、ｃ－ｍｙｃ蛋白与肝细胞癌（ＨＣＣ）的发生、发展及恶性程度的关系。方法：应用免疫组织化学法检测了６９例ＨＣＣ和６３例癌旁组织ｐ１６及ｃ－ｍｙｃ蛋白的表达,并结合临床资料进行分析。结果：ｐ１６蛋白主要分布在胞浆,少数细胞核内也可见阳性显色。ｃ－ｍｙｃ蛋白主要分布在胞核。ｐ１６蛋白在肝癌组织及癌旁组织中的阳性率分别为２６．５％（１８／６９）和９２％（５８／６３）,两者比较差异显著（Ｐ〉     

肝移植术后出凝血功能的调控

目的：探讨肝移植术后出凝血功能的调控方法及意义。方法：通过１１ 例活体肝部分移植术病例,介绍术后出凝血功能的监测指标及调控方法。结果：肝移植术后出凝血功能调控的目标为维持血压、脉搏相对稳定,控制下列指标在一定范围内。 Ｈｂ ：９０ ～１１０ｇ／ Ｌ, Ｈｔ：２５ ％ 上下, Ｐ Ｌ Ｔ：３０ ～５０ ×１０９／ Ｌ, Ｐ Ｔ：１５ ～２０ｓ , Ａ Ｃ Ｔ：１５０ ～２００ｓ,调控手段是依据上述指标补充凝血因子或使用扩血管剂或抗凝剂。结论：本研究所介绍的方法能有效防止肝移植术后的出血和血栓形成。     

Increasing sampling density improves reproducibility of optical coherence tomography measurements.

PURPOSE: Published series of peripapillary retinal nerve fiber layer (RNFL) measurements using optical coherence tomography (OCT) have sampled 100 evenly distributed points on a 360 degrees peripapillary circular scan. The goal of this study was to determine whether a four-fold increase in sampling density improves the reproducibility of OCT measurements. METHODS: Complete ophthalmic examinations, achromatic automated perimetry, and OCT imaging were performed in all patients. The OCT scanning consisted of three superior and inferior quadrantic scans (100 sampling points/quadrant) and three circular scans (25 points/quadrant). The RNFL thickness measurements and coefficient of variation (CV) were calculated for the superior and inferior quadrants for each sampling density technique. RESULTS: The study included 22 eyes of 22 patients (3 control subjects; 2 patients with ocular hypertension; and 17 patients with glaucoma). Quadrants with associated glaucomatous visual field loss on automated achromatic perimetry had thinner RNFLs than quadrants without functional defects for both the 25- and 100-points/quadrant scans. For quadrants associated with normal visual hemifields (n = 22), there was no difference between the 25- and 100-points/quadrant scans in mean RNFL thickness and CV. Among quadrants with visual field defects (n = 22), RNFL thickness measurements were thinner in the 25-points/quadrant scans than in the 100-points/quadrant scans. The CV for the 25-points/quadrant scans (25.9%) was significantly higher than that for the 100-points/quadrant scans (11.9%). CONCLUSION: Increasing the sampling density of OCT scans provides less variable representation of RNFL thickness. The optimal sampling density to achieve maximal reliability of OCT scans remains to be determined.     

吴茱萸及其有效成分的药理研究进展

本文通过查阅国内外文献，对近十余年来吴茱萸及主要成分吴茱萸碱，吴茱萸次碱，去氢吴茱萸碱，柠檬苦素等药理研究进展作一综述。     

虎杖清热解毒药理作用的研究进展

本文从抗病毒、抗菌、抗氧化清除自由基、对免疫系统的影响、抗毒素抗炎五方面综述了虎杖清热解毒的药理作用。     

VEGF、KDR的表达对肝癌的血管生成、生长、转移的影响

目的　研究血管内皮生长因子 (VEGF)及其受体KDR(kinaseinsertdomaincontainingre ceptor)对肝细胞肝癌的血管生成、生长、转移等方面的影响。　方法　对 45例肝癌、2 1例肝硬化、8例正常肝标本进行了免疫组化、原位杂交染色 ,然后行图像分析 ,观察VEGF、KDR的表达与肝癌病理特点之间的关系 ,并进行统计学分析。　结果　肝细胞肝癌中VEGF高表达 ;并与肝癌的血管生成相关 ;VEGF的表达强度与表达率均与肝癌的转移、包膜形成相关 ;KDR不仅表达于血管内皮细胞 ,还表达于部分肝癌细胞。　结论　VEGF在肝癌的血管生成、癌细胞转移、包膜形成中可能起到重要作用 ,KDR在肝癌细胞的表达可能是一种自分泌行为。     

Study of total quantity control of air pollutants in planning industrial district

The total quantity control of pollutant emissions for an industrial district is determined by coefficient(A) method(Qian,1990).It is suggested that average daily concentrations of air pollutants should be estimated in relation with metrological parameters,such as wind directions,wind speed and atmospheric stability in the period of moniforing by Gaussian model(SEPB,1991),and that the sources of Pollution should be redistributed on the basis of the resulf of monitoring with a view improving local atmosphere environment.     

十二指肠血管压迹的影像学观察

目的探讨胃肠钡餐造影检查中十二指肠横部血管压迹的来源.材料和方法对比研究50例钡餐造影所见的十二指肠横部血管压迹与相应CT层面上十二指肠横部、腹主动脉、肠系膜上动、静脉及下腔静脉之间的关系;3例血管造影与钡餐造影联合检查,证实该压迹的来源.结果所有病例十二指肠横部血管压迹均与腹主动脉相吻合;肠系膜上动脉等血管与该压迹的位置及宽度不符;下腔静脉偶可导致另一压迹.结论十二指肠横部血管压迹,为腹主动脉压迫所致,称其为"十二指肠腹主动脉压迹”较为准确.