尿液蛋白定量、凝胶电泳、NAG酶联合检测对肾病的诊断价值

尿液的生化检验已广泛应用于临床,某些生化指标能很好地反映肾脏病变的性质.作者对51例健康成人、64例肾病患者、47例其他疾病患者的尿液标本进行了24 h尿蛋白定量、凝胶电泳及NAG酶的检测观察,以了解其对肾病患者的诊断价值.     

儿童过敏性紫癜119例分析

我院自1995年1月～2001年12月共收治119例,现分析如下.     

Rapid fractionation of polysomes by density gradient ultracentrifugation in vertical tube rotor

目的 测定多聚核糖体含量及多聚程度的分布.方法采用PRV-50T垂直转头40PA离心管,梯度为15%-55%连续蔗糖梯度.离心条件温度10℃,转速40 000 r/min,时间9min.DGF-U型梯度仪液面跟踪法收集,同时与TH641摆平转头进行对比.结果采用垂直转头具有分离效果好,重现性强,操作简单,特别是离心管体积大,离心过程中产生的重定向作用使梯度容量大大增加,分离路径大大缩短,时间相应减少.结论为快速和大量制备、分析多种多聚核糖体提供一种良好方法.     

Klinefelter综合征1例

1　病例简介患者 ,梁某 ,2 2岁。因无阴茎勃起和遗精来诊。既往无特殊病史。父母非近亲结婚 ,母亲怀孕时 2 3岁 ,父亲 2 4岁 ,有 1兄 1弟 ,均健康。体检 :身高 186ｃｍ ,指间距 196ｃｍ ,下半身明显长于上半身。皮肤细白 ,肌肉不发达 ,无胡须、腋毛。喉结小 ,发声细。乳房未发育呈男性型。外生殖器 :无阴毛 ,阴茎短小 ,阴囊色素浅 ,左右睾丸小如蚕豆 ,质硬 ,无压痛。心肺腹及四肢未见其他异常。智力正常。生化检查 :血ＰＲＬ2 9.7ｍｇ/Ｌ ,ＦＳＨ2 9.1ＩＵ /Ｌ ,ＬＨ 3 2 .9ＩＵ/Ｌ ,Ｅ2 10ｎｇ/Ｌ ,Ｐ0ｍｇ/Ｌ ,Ｔ0 .75ｍｇ/Ｌ。血生长激素…     

镇痛灵对雄性1型糖尿病大鼠性功能的影响

目的 :本实验以成年雄性大鼠为研究对象 ,观察和探讨中药镇痛灵对糖尿病大鼠性功能的影响。　方法 :3～ 5月龄雄性Wistar大鼠 32只 ,随机分为糖尿病组 2 2只 ,正常对照组 10只。 72h后 ,将造模成功的糖尿病大鼠随机分为 2组 :未治疗组 ;镇痛灵治疗组。第 5周测血糖 ,阿朴吗啡勃起实验后 ,乙醚麻醉下断头取血 ,分离血清 ,取一侧睾丸组织制成匀浆液 ,测定血清及组织匀浆中NO及NOS水平。　结果 :糖尿病大鼠与正常对照组比较 ,血清NO、NOS明显降低 ,差异有高度显著性 (P <0 .0 0 1) ;镇痛灵治疗组血清NO、NOS值与未治疗组比较明显升高 ,差异有显著性 (P <0 .0 1) ;阿朴吗啡勃起实验证实 ,镇痛灵治疗组大鼠阴茎勃起次数明显多于未治疗组 ,差异有显著性(P <0 .0 1) ,而与正常对照组比较 ,差异无显著性 (P >0 .0 5 )。　结论 :复方中药合剂镇痛灵有降血糖作用 ,对糖尿病并发的性功能障碍有一定治疗作用。     

罗格列酮对多囊肾囊肿衬里上皮细胞p38促分裂原活化蛋白激酶信号通路的影响

Objective To investigate the effect of rosiglitazone on p38 mitogen-activated protein kinase (p38MAPK) pathway in polycystic kidney cyst-lining epithelial cells. Methods The cyst-lining epithelial cells (PKD cells) from human polycystic kidney were treated with rosiglitazone (10 μmol/L), peroxisome proliferator-activated receptor-γ (PPARγ) inhibitor GW9662 (10 μmol/L), rosiglitazone (10 μmol/L) +GW9662 (10 μmol/L), p38MAPK specific inhibitor SB203580 (10 μmol/L), SB203580 (10 μmol/L)+ rosiglitazone(10 μmol/L) for 2 hours followed by epidermal growth factor (EGF) stimulation. Protein expressions of p38, phuspho-p38 (p-p38) and proliferating cell nuclear antigen (PCNA) were detected by Western blot. p38 mRNA was examined by RT-PCR. Expression of c-fos and c-jun was observed by immunocytochemistry. Results (1) EGF markedly up-regulated the expressions of p38, p-p38, PCNA, c-fos anti c-jun compared with control group (P<0.01). (2) Compared with EGF treated group, rosiglitazone significantly reduced p38 activation and mRNA expression (P<0.01, respectively). Rosiglitazone, rosiglitazone+SB203580 could significantly down-regulated p-p38, PCNA, c-fos and c-jun expression (P<0.01, respectively) with no significant difference between these two groups. (3) GW9662 partially reversed the reduction effect of rosiglitazone. Conclusions Rosiglitazone can inhibit proliferation of autosomal dominant polycystic kidney disease cyst-lining epithelial cells partially through down-regulating p38 activation and reducing c-fos, c-jun and PCNA expression. The above effect of rosiglitazone is in part PPARγ-independcnt.     

新生儿胃穿孔18例诊治报告

目的 :探讨新生儿胃穿孔的诊断、治疗效果及预后因素。方法 :对 1 8例新生儿胃穿孔病例诊断、治疗及预后因素进行分析。结果 :1 8例患儿均有拒奶、腹胀、呕吐、呼吸困难等症状。腹部立位 X线片示膈下有大量游离气体。其中单纯穿孔 6例 ,多发穿孔 4例 ,胃壁缺损 7例 ,全胃壁缺如 1例。单纯及多发胃穿孔行胃修补术 ,3例同时行胃造痿术。胃壁肌层缺损行病变组织切除、胃壁修补及胃造痿术。 1例全胃壁肌层缺如仅行腹腔引流术。本组存活 8例 ;死亡 1 0例 ,病死率 5 5 .5 6%。死亡原因为多脏器功能衰竭、DIC。结论 :新生儿胃穿孔预后差 ,且受发病时间、就诊时间、病变严重程度等综合因素影响     

两种术式治疗多囊卵巢综合征的远期疗效追踪比较

[目的]评价开腹卵巢楔形切除(OWR)和腹腔镜下双侧卵巢电灼开窗术(LOD)两种术式对多囊卵巢综合征(PCOS)的远期疗效.[方法]1981至2001年在我院诊断为PCOS并接受手术治疗的妇女共151例,其中行OWR 61例、LOD 90例,追踪分析两组妇女术后妊娠率、术后妊娠时间的分布及术前后月经模式变化.[结果]两组的临床特征具有可比性,OWR组累积妊娠率84%,LOD组累积妊娠率72%,两组间没有明显差异,绝大部分妊娠发生在术后18个月内;OWR组术后3个月、半年、1年、3年、5年及10年月经规律的妇女所占的比例分别是81.3%、81.3%、77.3%、77.6%、78.9%、85.2%,明显高于术前的31.1%(P值＜0.05);LOD组术后3个月、半年、1年、3年、5年及10年月经规律的妇女所占的比例分别是80.6%、63.5%、56.7%、58.0%、57.6%、42.9%,明显高于术前的35.6%(P值＜0.05);术后OWR组月经规律妇女占的比例明显高于LOD组(P均＜0.05).[结论]两种术式的术后妊娠率相似.OWR比LOD更好、更长远地改善PCOS妇女的月经异常.     

吗啡预处理-后处理对大鼠离体心脏缺血再灌注损伤的影响

Objective To evaluate the effects of morphine preconditioning-postconditioning on ischemia-reperfusion (I/R) injury in isolated rat hearts. Methods Male SD rats weighing 180-200 g were killed after intraperitoneal injection of heparin 500 U/kg. The hearts were immediately removed and perfused in a Langendorff apparatus with K-H solution gassed with 95%O2-5%CO2 .HR and left ventricular systolic pressure (LVSP) were measured from a fluid-filled latex balloon in the left ventricle. Global myocardial ischemia was induced by interrupting perfusion for 45 min followed by 60 min reperfusion. Forty isolated rat hearts were randomly divided into 5 groups (n = 8 each): group 1 (I/R); group II morphine preconditioning (M1 ); group Ⅲ morphine postconditioning (M2); group IV M1 + M2; group V 5-hydroxydecanoate (5-HD) + M2. Group M1 was perfused with K-H solution containing morphine 3.0 μmol/L for 20 min 30 min before ischemia followed by 10 min normal K-H solution perfusion. Group M2 was perfused with K-H solution containing morphine 3.0 μmol/L for 10 min at the beginning of reperfusion followed by 50 min normal K-H solution perfusion. Group 5-HD + M2 was perfused with K-H solution containing morphine 3.0 μmol/L+ 5-HD 10-4 mmol/L for 10 min at the beginning of reperfusion followed by 50 min normal K-H solution perfusion. Myocardial CK-MB activity was measured and myocardial infarct size (IS/AAR) detennined (by 2,3,5-triphenyl tetrazolium staining) at the end of 60 min reperfusion. Results The preconditioning, postconditioning and combination of preconditioning and postconditioning with morphine 3.0 μmol/L perfusion for 10 min all provided cardio-protective effects in terms of IS/AAR and myocardial activation of CK-MB. Conclusion Although the combination of morphine preconditioning and postconditioning can protect the heart against I/R injury, the effects are similar to those of either of them alone, and the reason may be that either of them alone protects the heart against I/R injury via activating mitoKATP .     

充血性心力衰竭患者血清GH/IGF-Ⅰ轴水平的变化

目的研究充血性心力衰竭(CHF)患者血清生长激素(GH)/胰岛素样生长因子-Ⅰ(IGF-Ⅰ)轴水平的变化,探讨血清GH/IGF-Ⅰ轴水平与病因、心功能、左室射血分数(LVEF)、X线心胸比率(CTR)等指标的相互关系.方法 CHF患者66例,按NYHA心功能分级标准Ⅱ级23例,Ⅲ级30例,Ⅳ级13例.检测血GH、IGF-Ⅰ,以lg(IGF-Ⅰ/GH)作为生长激素敏感性指标,超声心动图测LVEF,胸部X线计算CTR.结果 GH在心功能Ⅱ～Ⅳ级组分别为(0.38±0.52),(0.95±1.14),(1.75±1.25)μg/L,心功能Ⅱ级组分别与Ⅲ级组及Ⅳ级组比较,差异有显著性(P<0.05,t'检验,下同),而Ⅲ级组与Ⅳ级组比较,差异无显著性(P>0.05).IGF-Ⅰ在心功能Ⅱ～Ⅳ级组分别为(197.97±101.89),(104.19±31.81)和(52.16±23.69)μg/L,两两相比,差异有显著性(P<0.05).lg(IGF-Ⅰ/GH)在心功能Ⅱ～Ⅳ级组中分别为(3.13±0.68),(2.38±0.70),(1.55±0.53),两两相比,差异有显著性(P<0.05),lg(IGF-Ⅰ/GH)分别与LVEF及CTR呈线性相关(P<0.05).不同病因CHF患者血GH、IGF-Ⅰ、lg(IGF-Ⅰ/GH)水平比较,差异无显著性(P>0.05).结论 CHF患者随着心衰的加重,GH水平升高、IGF-Ⅰ水平降低,存在生长激素抵抗现象.