Intraprostatic chemotherapy: distribution and transport mechanisms.

PURPOSE: The present study evaluated the tissue distribution and targeting advantage of intraprostatic chemotherapy. EXPERIMENTAL DESIGN: We studied the delivery and spatial distribution of a fluorescent drug, doxorubicin, in the prostate of beagle dogs, after intraprostatic or i.v. administration. Drug concentrations were measured using high-performance liquid chromatography and confocal fluorescence microscopy. RESULTS: I.v. and intraprostatic injections yielded qualitatively and quantitatively different doxorubicin distribution in the prostate. A relatively homogeneous distribution was found after i.v. administration, whereas intraprostatic injection yielded a highly heterogeneous distribution with >10-fold higher concentrations localized in a cone-shaped glandular lobule bound by fibromuscular stroma, compared with other parts of the prostate. Compared with i.v. injection, intraprostatic injection yielded, on average, approximately 100-fold higher tissue-to-plasma concentration ratio, ranging from 963-fold near the injection site to 19-fold in the contralateral half of the prostate. The drug distribution within the prostate further suggests an important role for acinar flow in intraprostatic drug transport. CONCLUSIONS: Intraprostatic administration represents a viable option to deliver high drug concentrations within the prostate. The results further suggest the fibromuscular stroma separating the prostatic lobules as a major barrier to drug transport and convective flow as an important drug transport mechanism in the prostate.     

支气管结核纤维支气管镜下局部清理、注药与联合微波治疗的疗效比较

支气管结核患者由于支气管局部的肉芽组织增生、溃疡、干酪性坏死、管腔狭窄阻塞等改变，虽然使用强有力的全身抗痨方案治疗，亦很难将其治愈，常常迁延不愈，局部结构组织破坏明显，引起永久性狭窄、闭塞，导致肺不张、毁损肺等严重的并发症。全身抗痨结合纤维支气管镜清理支气管局部的增生肉芽、坏死组织后注入异烟肼、链霉素的方法可使疗效明显提高。近年来微波技术已逐渐应用于通过纤维支气管镜治疗多种气道疾病。现将我院近5年来确诊的支气管结核用纤支镜局部病灶清理、注抗痨药治疗与同时联合微波热灼治疗的疗效进行分析、报告如下。     

间脑综合征1例报道

典型病例患者,女,76岁,无业。于1个月前无明显诱因出现发热,体温最高达39℃,伴头痛、身痛,无恶心、呕吐及颈僵,无畏寒、盗汗及消瘦,无尿频、尿急、尿痛,无腹痛、腹泻,无咽痛、胸痛、咳嗽。在当地医院行抗感染治疗20余天(主要用头孢类和喹诺酮类抗生素),体温有所下降,波动于37.8℃~38.4℃之间。既往有类似发作史两次,伴多汗、睡眠倒错,均治疗1个月余,体温未能恢复正常。有糖尿病及腰椎间盘突出病史。入院体检:T36.6℃,R18次/min,P81次/min,BP130/80mmHg,肥胖体型,表情淡漠,咽部无充血,双下肺呼吸音稍低,未闻及干、湿性口罗音,心律齐,未闻…     

计算机医嘱输入系统对用药错误的助长作用

背景：医院的计算机医嘱输入（computerized physician order entry，CPOE）系统被广泛认为能从技术上解决用药错误，后者是最常见的可以预防的医院诊疗错误的来源。已发表的研究表明，CPOE可减少高达81％的用药错误。然而，很少研究关注CPOE助长用药错误作用的范围或类型。     

Cytotoxic lipid esters from Peucedanum ledebourielloides

Two cancer cell growth inhibitory esters, 1,2-dipalmitoyl-3-glucosyl glycerol (1) and 1,6-dihydroxy-hexane-bis-palmitoyl ester (2), together with arachidic acid-2-hydroxy-glycerol ester, daucosterol, and oleanolic acid, were isolated from the roots of Peucedanum ledebourielloides (Apiaceae family). The structures were determined by spectroscopic analyses. The esters 1 and 2 displayed significant activity against the SGC-7901, HT-29, and HL-60 cancer cell lines.     

2型糖尿病患者卒中一级预防的现况调查

目的 了解2型糖尿病患者住院前及住院期间卒中各危险因素的干预状况，发现临床实践与证据之间的差距，提高临床医生对卒中一级预防的认识，指导今后的临床治疗。方法 本调查为横断面调查研究，回顾性调查167例2型糖尿病患者住院前及住院期间对卒中主要危险因素的干预情况。结果 被调查的患者中，入院前有46.7%的患者有高血压；36.0％的患者有吸烟史；19.8％的患者存在冠状动脉粥样硬化性心脏病，0.6％的患者有心房颤动；23.4％的患者有脂代谢异常。出院前有56.9％的患者被诊断高血压；81.4％的患者存在脂代谢异常。入院前与出院前对血压的药物干预率差异无统计学意义（分别为75.6%及80.0%，P >0.05）；入院前后的降脂治疗（分别为25.6%及69.1%，P <0.01）及降糖治疗（分别为82.0%及97.6%，P <0.01）的差异均有统计学意义。结论 2型糖尿病患者院前对危险因素干预的达标率较低，应加强2型糖尿病患者及临床医生对卒中一级预防的认识，提高卒中卒中相关危险因素的干预率。     

对诊断PADAM的游离睾酮指数的评估

目的 评价诊断中老年男子部分雄激素缺乏综合征（PADAM）的游离睾酮指数（FTI）.方法 对129例45岁以上健康男性的FTI进行年龄相关分析.以推算的游离睾酮（CFT）值为依据,对FTI进行有效性检验.结果 男子在中老年期FTI与增龄呈明显的负相关.FTI敏感性97.78%,特异性58.33%.结论 计算简单的FTI可用于PADAM病人的筛选和随访,尤其对70岁以上男子是血清FT较为有效的参数.     

柴胡疏肝散、四君子汤对肝郁、脾虚大鼠Th细胞蛋白激酶C表达的影响

目的研究柴胡疏肝散、四君子汤对肝郁、脾虚大鼠Th细胞蛋白激酶C(PKC)表达的影响及其意义。方法应用RT—PCR法研究柴胡疏肝散、四君子汤对Th细胞PKCmRNA表达的影响。结果脾虚时PKCmRNA表达水平明显低于正常对照组 (P <0 .0 5 ) ,四君子汤治疗后恢复正常 (P <0 .0 5 ) ,柴胡疏肝散治疗后仍明显低于正常对照组 ;肝郁时PKCmRNA表达水平明显高于正常对照组 (P <0 .0 5 ) ,柴胡疏肝散治疗后恢复正常 (P <0 .0 5 ) ,但四君子汤治疗效应不明显。结论肝脾两脏在T细胞尤其是Th0的活化中具有相关性 ;PKC参与了肝脾这种相关的发生。