肝硬化大鼠原位肝移植血流动力学改变

目的 研究肝硬化大鼠异体原位肝移植术后血流动力学改变.方法 雄性健康SD大鼠50只,采用腹腔及皮下注射四氯化碳(CCl_4),同时饮用乙醇溶液诱导10周,制备肝硬化大鼠模型;按KAMADA二袖套法(门静脉和肝下下腔静脉)对肝硬化大鼠原位肝移植;观察肝移植前后门静脉血流动力学的变化.结果 制备肝硬化大鼠模型36只;进行肝移植手术26次,术后成活并进行门静脉血流动力学指标检测12只.经统计学方法检验,肝移植术后门静脉压较术前明显降低[(1.60±0.10)kPa vs. (1.70±0.25)kPa,P<0.05];门静脉血流量明显增加[(7.55±1.02)mL/min vs. (6.15±0.88)mL/min,P<0.05];门静脉阻力明显降低[(11.84×10~(-2)±2.51×10~(-2))kPa/(mL·min) vs. (16.29×10~(-2)±2.40×10~(-2))kPa/(mL·min),P<0.05].结论 异体肝移植术可改善肝硬化大鼠血流动力学指标.     

单纯多滤泡卵巢妇女的糖代谢水平的变化

目的研究单纯多滤泡卵巢(MOF)妇女的糖代谢水平,探讨其与胰岛素抵抗及体重的关系。方法46例MOF妇女及30例正常对照女性,口服75g葡萄糖,行糖耐量试验(OGTT)及同步胰岛素释放试验(IRT),用稳态模型胰岛素抵抗指数(HOMA IR)测评胰岛素抵抗。结果①MOF糖耐量低减的发生率为10.87%,明显高于对照组3.33%(P<0.05)。胰岛素抵抗的发生率为30.43%,对照组为10.00%,两组比较差异有统计学意义(P<0.05)。②两组的性激素水平,即FSH、LH、PRL、E2、T和P的差异无统计学意义(P>0.05)。③糖耐量低减妇女BMI与胰岛素抵抗呈正相关(r=0.567,P<0.05)。结论单纯多滤泡卵巢妇女存在一定程度的糖代谢异常;肥胖和胰岛素抵抗是导致糖耐量异常的主要原因。MOF肥胖妇女应行OGTT监测糖代谢状况。     

抵抗素、血脂及有关生化指标在2型糖尿病患者中的变化

目的探讨抵抗素、血脂及肝功能指标在2型糖尿病患者内环境紊乱中的变化情况。方法70例2型糖尿病患者(2DM组)和15例正常人(对照组)分别采取清晨空腹静脉血,应用酶联免疫吸附试验测定抵抗素,放射免疫分析法测定胰岛素,全自动生化分析仪检测血糖、血脂及肝功能指标。结果①2DM组的空腹血糖平均为(8.85±3.21)mmol/L,空腹胰岛素平均为(11.12±4.54)mU/L,抵抗素平均含量为(23.06±9.34)μg/L,均显著高于对照组(P<0.01)。②2DM组的胆固醇、三酰甘油及尿微量白蛋白分别为(5.51±1.37)mmol/L、(2.48±1.60)mmol/L和(28.49±41.18)mg/24h,均显著高于对照组(P<0.05)。而谷丙转氨酶、谷草转氨酶、高密度脂蛋白胆固醇和脂蛋白a在两组之间无明显差异(P>0.05)。结论糖尿病患者存在内环境的紊乱,其体内含有较高浓度的抵抗素,并存在血脂代谢异常和尿微量白蛋白的增高。     

A STUDY ON THE ALTERATION OF FREE RADICALS、PROSTAGLANDINS AND THEIR RELATIONSHIP IN CHILDREN EITH ACUTE GLOMERULONEPHRITIS

ＡＳＴＵＤＹＯＮＴＨＥＡＬＴＥＲＡＴＩＯＮＯＦＦＲＥＥＲＡＤＩＣＡＬＳ、ＰＲＯＳＴＡＧＬＡＮＤＩＮＳＡＮＤＴＨＥＩＲＲＥＬＡＴＩＯＮＳＨＩＰＩＮＣＨＩＬＤＲＥＮＥＩＴＨＡＣＵＴＥ　ＧＬＯＭＥＲＵＬＯＮＥＰＨＲＩＴＩＳＹａｎＸｉａｏｃａｉ；，ＷｅｉＪｕ...     

Effects of PYY on the interdigestive migrating myoelectric complex in the small intestine in vivo and the neural and endocrinal mechanisms of the effects

Objective To investigate the effects of peptide YY (PYY) on the interdigestive migrating myoelectrlc complex (MMC) in the small intestine in vivo and explore the neural and endecrinal mechanisms of the effects. Methods Spragne-Dawley rats were supplied with a venous catheter and bipolar electrodes in the duodenum and jejunum for electromyography of stomach and small intestine in wake state. PYY, phentolamine, nitro-L-arginine (L-NNA, the inhibitor of nitric oxide synthase) and atropine were served with PYY respectively. The plasma motilin levels before and after the infusion of PYY were observed. Results At all the three recording points, PYY lengthened the drde length of MMC [from (591.90±128.98)s to (999.25±216.59)s, P<0. 01] and lowered the frequency of phase Ⅲ [from (39.28±8.40) min-1 to (22.08±3.13) min-1 , P<0.01], amplitude of phase Ⅲ [from (0. 320±0.060)mV to (0. 179±0.030)mV, P<0.01], and the portion of phase Ⅲ over the whole circle length [from (28. 61 ± 5.84)% to (15.43 ±5.16)% , P<0.01]. Phentolumine had no influence on the role of PYY. Administered L-NNA combined with PYY, the percentage of phase Ⅲ increased [(42. 09±8.67)%] compared with that of control(P<0.01) and compared with that of PYY administered alone (P<0. 01) too. Atropine combined with PYY showed stronger depressing effects on MMC. No significant difference was found between the plasma motilin levels before and after the infusion of PYY. Conclusion PYY my inhibit the interdigestive intestine motility through the none-adrenergic none-choUnergic tract, while the m-receptor tract and circulating motilin are probably not involved In the depressing effect.     

Nephrin、TGF-β1和WT1在阿霉素肾病模型肾小球中的表达及意义

目的 探讨足细胞的数量及nephrin、转化生长因子-β1(TGF-β1)蛋白在阿霉素肾病模型肾小球中的表达及意义.方法 建立阿霉素诱导的大鼠肾病模型,于不同实验时间点检测血、尿生化指标;光镜、电镜观察肾脏的组织病理学改变;免疫组化技术检测足细胞数量、nephrin、TGF-β1蛋白的表达情况.结果 该模型的肾脏病理学改变明显;1周末足细胞nephrin表达减弱(P<0.05),8周末肾小球TGF-β1表达增强(P<0.05)、足细胞数量减少(P<0.05);nephrin与24h尿蛋白定量(r=-0.83,P<0.01)、尿素氮(r=-0.68,P<0.05)、血肌酐(r=-0.71,P<0.05)呈负相关;TGF-β1与24h尿蛋白定量(r=0.45,P<0.05)、尿素氮(r=0.62,P<0.05)、血肌酐(r=0.59,P<0.05)呈正相关;足细胞数量与24h尿蛋白定量(r=-0.63,P<0.05)、尿素氮(r=-0.72,P<0.05)、血肌酐(r=-0.76,P<0.05)呈负相关;足细胞数量与nephrin呈正相关(r=0.78,P<0.01),与TGF-β1呈负相关(r=-0.64,P<0.05). 结论经改良间隔2周两次尾静脉注射阿霉素(4mg/kg)可以成功复制阿霉素肾病急性和慢性模型;阿霉素肾病蛋白尿的发生和进展与nephrin表达异常密切相关;TGF-β1加重了足细胞数量减少启动的局灶节段性肾小球硬化.     

EFFECT OF ROSIGLITAZONE AND METFORMIN ON CLOMIPHENE CITRATE RESISTANCE IN WOMEN WITH POLYCYSTIC OVARY SYNDROME

Objective To evaluate the impacts of rosiglitazone and metformin on ovarian response, hirsutism and insulin action in women with polycystic ovary syndrome (PCOS). Methods Ninety women resistant to clomiphene citrate with PCOS were randomized, 40 cases to rosiglitazone group, 50 cases to meformin group. Rosiglitazone and metformon were administered for 6 months in combination with clomiphene citrate on cycle day 5th to 9th, respectively. The clinical evaluations were performed monthly. Reproductive hormone, serum glucose and insulin levels were observed before and after treatment. The data were analyzed using repeated analysis of variance (ANOVA). Results There were significant changes in reducing hirsutism score, serum testosterone level, LH/FSH ratio, and restoration of ovarian ovulation after metformin or rosiglitazone administration respectively (P<0.05). Insulin sensitivity was more significantly improved in the rosiglitazone group than in metformin group (P<0.05) After treatment. Homa IR and Homa β were decreased from 1.54±0.34 to 0.83±0.38 and from 5.83±0.55 to 4.95±0.54 (P<0.05) in the rosiglitazone group. The body mass index(BMI) was decreased from 25.30±3.64 to 23.83±2.32 in the metformon group (P<0.05). There were no significant changes in ovulation rate and pregnancy rate between groups (P>0.05). Conclusion Rosiglitazone can increase insulin sensitivity. Metformon may reduce BMI. They all restore regular menstrual cycles, increase pregnancy rate, and reduce testosterone and LH concentration in women with polycystic ovary syndrome.     

螯虾神经轴突上双微电极细胞内刺激与记录及其实验观察

本文以螯虾细小神经轴突为标本,成功地应用双玻璃微电极进行细胞内刺激与电活动的记录。观察了细小神经轴突膜电生理和物理特性参数。钾离子通道特异性阻滞剂4—氨基吡啶,使Weiss式中常数b值显著减少;a值无明显变化;膜静息电位去极化;阈电位水平上移;动作电位幅值、锋电位时程、膜电阻和膜时间常数均有显著意义的增加。结果提示:4—氨基吡啶可提高膜的应激性,对神经膜兴奋性无明显影响;生物膜应激性及膜电阻的变化与钾通道的活动状态有密切关系。     

CYCLIC CHANGES OF LACTATE DEHYDROGENASE IN CERVICAL MUCUS

ＷａｎｇＨｏｎｇ（王红）；ＣａｏＺｈａｎＳｕｎ（曹缵孙）；ＷｅｎｇＱｉｌｉａｎｇ（翁其亮）；ＭａｏＷｅｎｊｕｎ（毛文军）；ＹａｎｇＪｉａｎｙｅ（杨建业）ＣＹＣＬＩＣＣＨＡＮＧＥＳＯＦＬＡＣＴＡＴＥＤＥＨＹＤＲＯＧＥＮＡＳＥＩＮＣＥＲＶＩＣＡＬＭＵＣＵ...     

100例正常人H反射潜伏期与生理变量间的关系

用经典方法测量了我国100例正常人H反射的潜伏期,该值与据Braddom公式计算的理论值之间有高度显著性差异(P<0.01),表明该公式不适宜于我国人。本工作首次测算了100例国人H反射潜伏期与受试者腿长和年龄间关系的相关系数分别为0.533和0.375。此外,还研究了H反射潜伏期与性别间关系。     

克山病患者红细胞免疫功能与血硒水平的关系

对潜在型、慢型克山病患者和病区健康居民的红细胞免疫功能、血清红细胞免疫粘附调节因子、循环免疫复合物（CIC）、全血硒含量和全血谷胱甘肽过氧化物酶活性（GPX）进行了检测，结果是：潜在型、慢型克山病患者和病区健康居民红细胞C3b受体花环率、全血硒含量和全血GPX活性均明显低于非病区居民；血清红细胞免疫粘附抑制率均明显高于非病区居民；全血硒含量与红细胞C3b受体花环率呈显著正相关（r=0．887，n=61，P＜0．01）；与血清红细胞免疫粘附抑制率呈显著负相关（r=0．781，n=60，P＜0．01）；而免疫复合物（IC）花环率、血清红细胞免疫粘附促进率和CIC在各型克山病患者、病区健康居民及非病区居民之间无明显差异。提示：潜在型、慢型克山病患者和病区健康居民红细胞免疫功能低下，可能与低硒状态和血清红细胞免疫粘附抑制因子增加有关。     

克山病患者红细胞免疫功能与血硒水平的关系

对潜在型、慢型克山病患者和病区健康居民的红细胞免疫功能、血清红细胞免疫粘附调节因子、循环免疫复合物（CIC）、全血硒含量和全血谷胱甘肽过氧化物酶活性（GPX）进行了检测，结果是：潜在型、慢型克山病患者和病区健康居民红细胞C3b受体花环率、全血硒含量和全血GPX活性均明显低于非病区居民；血清红细胞免疫粘附抑制率均明显高于非病区居民；全血硒含量与红细胞C3b受体花环率呈显著正相关（r=0．887，n=61，P＜0．01）；与血清红细胞免疫粘附抑制率呈显著负相关（r=0．781，n=60，P＜0．01）；而免疫复合物（IC）花环率、血清红细胞免疫粘附促进率和CIC在各型克山病患者、病区健康居民及非病区居民之间无明显差异。提示：潜在型、慢型克山病患者和病区健康居民红细胞免疫功能低下，可能与低硒状态和血清红细胞免疫粘附抑制因子增加有关。     

抗HER-2嵌合抗体chA21对卵巢癌细胞MMP-2和TIMP-2表达的影响

目的观察抗HER-2嵌合抗体chA21对卵巢癌细胞MMP-2和TIMP-2表达的影响。方珐采用免疫细胞化学法检测不同质量浓度chA21（6mg／L和12mg／L组）作用36h后，培养的高表达HER-2人卵巢癌细胞株SKOV3中MMP-2和TIMP-2表达的变化；建立SKOV3裸小鼠移植瘤模型，制作组织芯片，观察chA21（30mg／kg）对肿瘤组织MMP-2和TIMP-2表达的作用。站杲细胞实验显示，随着chA21浓度的升高，MMP-2明显降低（P〈0．01，r=-0．945），而TIMP-2显著升高（P〈0．01，r=0．926），MMP-2／TIMP-2比值也明显降低（P〈O．01，r=-0．945），且均呈浓度依赖性改变；裸鼠荷瘤实验结果显示，chA21能明显下调MMP-2的表达（P〈0．01），上调TIMP-2的表达（P〈0．01），并使MMP-2／TIMP-2明显降低（P〈O．01）。结论chA21能调节高表达HER-2人卵巢癌细胞SKOV3的MMP-2和TIMP-2表达水平。     

肿瘤浸润淋巴细胞和重组人白细胞介素-2对进展期肿瘤患者细胞免疫功能的影响

对20例经手术切除的进展期肿瘤患者用活化的肿瘤浸润淋巴细胞（TIL）和重组人白细胞介素-2（rhIL－2）治疗，检测治疗前后细胞免疫功能变化。其中8例治疗后PBL对同种异体相同组织学类型靶细胞的细胞毒性从43．2升高到1249．0溶解单位（P＜0．05），而NK活性无明显变化；T4、T8淋巴细胞亚群荧光强度明显升高，从1．9到3．9（P＜0．05）及4．4到7．2（P＜0．05）。所有患者PPD及PHA反应性明显增强，从10．9mm到13．6mm（P＜0．01）及7．9mm到12．7mm（P＜0．01），15例有一过性寒战、发热，其中10例伴轻度恶心、呕吐。结果提示：TIL和rhIL－2治疗后可明显提高进展期肿瘤患者的细胞免疫功能，而无明显毒副作用，可能成为进展期肿瘤术后重要的辅助治疗方法。     

THE EFFECT OF FCγ RECEPTOR ON THE PATHOGENESIS OF GRAVES'' DISEASE

Objective To explore the roles of Fcγ receptor in the pathogenesis of Graves' disease. Methods Fcγ receptor gene knockout mice(Fcγ R KO mice) which were rooted in C57BL/6 mice and wild type C57BL/6 mice were immunized by hTSH receptor expressing cells (DAP3.WT).1-2×107 DAP3.WT cells were peritoneally injected into mice every two weeks for a total of six times.Two weeks after final immunization, mice were killed for measurement of total thyroxine,TRAb and pathological examination.Results The thyroxine level of the immunized Fcγ receptor gene knockout mice was significantly lower than that of the immunized wild type control mice (2.2±0.31 vs.3.32±0.59g·dL-1,P<0.05), but there was no significant difference between immunized Fcγ R KO mice and non-immunized wild type control group.The TRAb levels of the immunized Fγ R KO mice significantly increased compared to those of the immunized wild type mice (21.75±8.21 vs.14.11±6.21, P<0.05). The lymphocyte cells infiltration and destruction of thyroid follicles were found in the thyroid gland of the immunized Fcγ R KO mice. Conclusion　These results suggest that Fcγ receptor may be involved in the pathogenesis of Graves'disease.     

血清、尿β_2微球蛋白测定对糖尿病肾脏病变的诊断价值

本文用放射免疫法则定了49例糖尿病惠者血清、尿β_2m含量,并与正常人对照。结果表明,血清β_2m值在糖尿病伴蛋白尿组、其他并发症组显著升高,尿β_2m在糖尿病伴肾盂肾炎组、蛋白尿组和其他并发症组也明显增加。血清β_2m值与BUN呈高度正相关,与Ccr呈高度负相关,尿β_2m值与PSP的2小时排泄率呈高度负相关。而且在BUN和血Cr升高或尿蛋白阳性之前,即可出现β_2m的显著增加。提示血清、尿β_2m测定是检查糖尿病患者早期肾脏损害的一种灵敏方法。     

EXPRESSION OF ANDROGEN RECEPTOR IN THE DEVELOPING RAT EPIDIDYMIS AND ITS REGULATION BY ANDROGENS

Epididymis depends upon androgens for itsprenatal and postnatal differentiation,absorptionof testicular fluid,transport of sperm,and secre-tion of proteins thatbring aboutfunctional changesin sperm[1] .Because of the significance of andro-gens in epididymis- mediated sperm maturation,weassessed the localization,developmental patterns,and hormonal control of androgen receptors(AR)in the developing and ethane dimethane sulfonate(EDS) treated SD rat epididymis(caput,corpusand cauda) .The immuno…     

硒对离体人胚肝细胞膜的保护作用

在原代培养人胚肝细胞脂质过氧化损伤模型上，观察硒对肝细胞膜流动性及膜表面超微结构的影响。结果：预加硒可有效地维持肝细胞膜流动性，保护膜表面结构完整。硒保护组培养液中谷胱甘肽过氧化物酶（ＧＳＨ－Ｐｘ）活性明显增加，丙二醛（ＭＤＡ）水平下降，与损伤组比较有显著性差异（Ｐ＜０．０１）。且其ＧＳＨ－Ｐｘ／ＭＤＡ比值与膜流动性增加呈正相关。提示上述硒的保护作用与增强细胞抗氧化能力有关。     

The clinical role of increase of serum matrix metalloproteinase-8 concentration in patients with acute coronary syndrome

Objective To study the clinical role of the variation of serum matrix metalloproteinase-8 (MMP-8)concentration in patients with acute coronary syndrome (ACS). Methods ELISA method was adopted to detect serum MMP-8 concentration and to observe concentration's differences and features among 80 selected ACS cases (43 acute myocardial infarction and 37 unstable angina pectoris), 43 stable angina pectoris (SAP) cases and 37 control cases.And meanwhile the atherosclerosis risk factors of each case, such as age, sex, hypertension, body mass index, smoking,family history, diabetes, and hyperlipidemia were collected and analyzed as a whole. Results First, serum MMP-8 concentration reached the highest point in ACS, and there was significant difference between SAP and control groups (P<0.01). Second, sermn MMP-8 in AMI was much higher than that in UAP with significant difference (P<0.01). There was no difference between UAP and SAP groups (P>0.05). Third, Logistic regression analysis revealed that serum MMP-8 concentration might be the indicator of ACS (B=4.493, P=0.000), particularly, that of AMI (B=9.961,P=0.000). Fourth, linear correlation and linear regression analysis found that only neutrophil was likely to influence serum MMP-8 concentration (r=0.274, P=0.001). Fifth, in the diagnosis of ACS, the area under ROC curve of MMP-8 was 0.785, the sensitivity and specificity were 68.6% and 76.5%, respectively. Conclusion ① Serum MMP-8 concentration has close relationship with the occurrence of ACS, particularly with AMI;② Serum MMP-8 concentration may be one of the predicting indicators of ACS and particularly of AMI;③ Neutrophil may be correlated with serum MMP-8 concentration;④ MMP-8 is of somewhat valuable in diagnosing ACS.     

EHF血尿SIL-2R受体的动态检测

应用双抗体夹心ELISA法测定了30例流行性出血热患者血清及尿液可溶性白细胞介素2受体（SIL-2R）水平。结果表明:流行性出血热患者血清及尿液SIL-2R均明显高于正常人（P<0.01）;且与临床病程密切相关。尿液SIL-2R与尿蛋白变化呈正相关关系（P<0.01）,可间接反映肾功能损害程度。尿液SIL-2R与血清SIL-2R具良好的相关性（r=0.542,P<0.001）;且尿液具有取材方便,易于检测的优点。对流行性出血热患者的临床病情估计和治疗具有一定的意义。