子宫内膜异位症癌抗原(CA125)检测及其临床意义

目的：探讨子宫内膜异位症与ＣＡ１２５有无相关性、提高临床子宫内膜异位症诊断雍诊断最佳途径。方法：用放射免疫测定法（ＲＩＡ）检测７９例子宫内膜异位症、７０例子宫肌瘤、６４例子宫颈癌、８０名正常育龄女性为对照。结果：子宫内膜异位症、子宫肌瘤、子宫颈癌、正常对照组阳性率分别是７９．７５％、８．５７％、１７．１９％、０．００％。前者显著高于后三者（Ｐ〈０．０１）。结论：ＣＡ１２５检测为临床诊断子宫内膜异位     

子宫内膜癌组织学类型与CEA、c-erbB-2表达

目的：观察子宫内膜癌的组织学类型与ＣＥＡ、ｃ－ｅｒｂＢ－２表达,探讨其组织学发生。方法：光镜观察组织学形态并进行分型,应用免疫组化Ｓ－Ｐ法,对９４例子宫内膜癌进行单克隆抗体ＣＥＡ和ｃ－ｅｒｂＢ－２检测。结果：子宫内膜样癌６１例（６４．８％）,腺棘癌６例（６．３％）,腺鳞癌８例（８．４％）,浆液性乳头状腺癌７例（７．４％）,粘液性癌５例（５．３％）,小细胞癌４例（４．２％）,透明细胞癌和鳞癌各１例（     

人流术中应用异丙酚与复合应用氯胺酮的比较

本实验旨在探讨微量氯胺酮与异丙酚联合应用的效果,以期获得更安全、更适合门诊手术的麻醉方式。　　作者简介:郭晓丽(1963-),女,河南省新乡市人,硕士研究生,主治医师,讲师,主要从事麻醉镇痛方面的研究,发表论文5篇。电话:(023)68757347　　收稿日期:20000508;修回日期:200010201　资料与方法　　研究对象:60例停经8～12周的早期妊娠妇女,年龄17～43岁,体重40～77ｋｇ,ＡＳＡⅠ～Ⅱ级,术前禁食6ｈ,禁饮4ｈ。麻醉前20ｍｉｎ肌注阿托品0.5ｍｇ。随机分为两组,异丙酚+氯胺酮组(ＰＫ组,ｎ=30例);异丙酚组(Ｐ组,ｎ=30例麻醉方法:ＰＫ组:异丙酚1～…     

一种用电容式传感器检测呼吸度的方法

目的介绍一种操作简单而成本低廉的呼吸率检测方法。方法 采用高灵敏度电容传感器,以及相应的检测系统,可以对呼吸活动进行检测。结果在一般左胸上部大部分位置均能得到较为满意的信号。结论应用前景广泛,可用于构成多参数监护仪中的呼吸模块,亦可用来检测呼吸波。     

Differential alcohol modulation of GABA(A) and NMDA receptors

NMDA and GABA(A) receptors are believed to be important CNS targets of alcohol action. In mouse hippocampal neurons, n-alcohols from ethanol to dodecanol enhanced GABA-activated ion current, whereas higher alcohols had no effect. Alcohols below pentanol affected NMDA receptors more potently than GABA(A) receptors. Increasing alcohol carbon chain length produced a greater average change in apparent binding energy and potency for modulation of GABA(A) than of NMDA receptor-channels, with the result that alcohols above pentanol affected GABA(A) receptors more potently than NMDA receptors. The anesthetic potency of n-alcohols in rats more closely reflected NMDA receptor modulatory potency for lower alcohols and GABA(A) receptor modulatory potency for higher alcohols. The results suggest that there may be fundamental differences in the sites through which alcohols affect NMDA and GABA(A) receptor function.     

Single-channel and whole-cell analysis of ethanol inhibition of NMDA-activated currents in cultured mouse cortical and hippocampal neurons

The effects of 0.1 to 500 mM ethanol on NMDA-activated currents were studied in primary cultures of mouse cortical and hippocampal neurons. In whole-cell recordings the IC₅₀S for inhibition of NMDA-activated currents by ethanol were 129 mM ± 20 mM in hippocampal neurons and 126 ± 18 mM in cortical neurons. In single-channel recordings from excised outside-out patches of cortical neurons, ethanol inhibited total charge per minute with an IC₅₀ of 174 ± 23 mM, which was not significantly different from the IC₅₀S for inhibition of whole-cell current. The reduction in mean open channel lifetime by ethanol was fit by the logistic equation with an apparent IC₅₀ of 340 ± 28 mM. Analysis of single-channel data indicated that ethanol inhibition of NMDA currents did not involve substantial changes in fast closed state kinetics, changes in open channel conductance, or block of the open channel. At the whole-cell IC₅₀, of ethanol, mean open channel lifetime would decrease by 28% and frequency of opening would decline by 31% to account for the reduction in current. Single-channel data were consistent with ethanol being an allosteric modulator of gating which reduces agonist efficacy.     

重肌灵对EAMG大鼠血清IL-4、IFN-γ水平的影响

观察中药复方重肌灵对EAMG大鼠血清IL－4、IFN－γ调节作用。方法：采用N2AchR加等量福氏完全佐剂，多次免疫Lewis大鼠，复制EAMG模型，并对模型进行评价。动物随机分为正常组、佐剂组、模型组、地塞米松组和重肌灵组。采用ELISA法观察各组动物血清AchRab、IL－4、INF－γ水平。结果：重肌灵、地塞米松组大鼠血清AchRab滴度、IL－4、IFN－γ水平明显降低，与模型组比较，有非常显著性差异（P＜0.01）。但两治疗组之间无显著性差异（P＞0.05）。结论：重肌灵具有良好的防治EAMG效果，可能是通过下调血清IL－4、IFN－γ，抑制AchRab产生，而起到治疗作用。     

自制中药粉剂中盐酸小檗碱的定量检测方法

目的测定自制中药粉剂中盐酸小檗碱的含量。方法采用薄层扫描法测定了盐酸小檗碱的含量。结果盐酸小檗碱在1～6μg间呈良好的线性关系,r=0.9975,平均回收率为97.95%,RSD为2.36%(n=5)。结论所建立的方法可靠准确地进行定量检测,可用于该制剂的质量控制。     

小儿重复输尿管的诊断和治疗

目的 总结小儿重复输尿管的诊治经验。方法回顾性分析13例重复输尿管的临床资料，其中完全性单侧重复输尿管(UCUD)9例，不完全性单侧重复输尿管(UIUD)2例，完全性双侧重复输尿管(BCUD)2例。合并输尿管异位开口7例，输尿管囊肿5例。9例UCUD行重复肾及重复输尿管切除术；2例BCUD，1例行单侧、1例行双侧重复肾及重复输尿管切除术。1例UIUD行输尿管侧侧吻合术。结果12例术后随访6月-5年，11例原有发热及尿路感染等症状消失，1例BCUD遗留输尿管残端反复感染。结论临床症状结合影像检查是诊断重复输尿管的有效方法，治疗取决于上半肾的功能。     

咽食管括约肌切开术在喉全切除术后发音重建中的作用

目的　探讨咽食管括约肌切开术对减少咽食管括约肌失弛缓对喉全切除术后安装Blom Singer发音管发音重建的影响。方法　喉全切除术后 ,咽食管括约肌收缩或是痉挛都会不同程度地影响食管的气流并阻碍发音。咽食管括约肌的解剖位置是环咽肌以及其上的下咽缩肌的一部分和颈段食管上段的一部分。手术操作是在喉全切除术中、术后于气管造瘘口外上方切除长 5cm ,宽 1cm的咽食管括约肌。结果　 3 3例喉全切除术的患者进行咽食管括约肌切开术后有 3 2例发音成功 ,发音重建的成功率是 97%。其中包括 12例喉全切除术中I期进行环咽肌切开术 ,2 1例是Ⅱ期进行咽食管括约肌切开术的 ,后者又有 9例是安装Blom Singer发音管后发音不能再行咽食管括约肌切开术的。患者 3年存活 2 5例 ,5年存活 18例。同期行喉全切除术和咽食管括约肌切开术的 12例患者 ,Kaplan Meier法统计 3年生存率 81 82 % ,5年生存率 42 86%。结论　咽食管括约肌切开术能提高Blom Singer发音管发音重建的成功率。