雷公藤多甙对成人隐匿性自身免疫性糖尿病患者谷氨酸脱羧酶抗体和B细胞功能的影响

目的探讨雷公藤多甙（GTT）对成人隐匿性自身免疫性糖尿病（LADA）患者谷氨酸脱羧酶抗体（GAD-Ab）和B细胞功能的影响。方法60例LADA患者随机分为GTT组和对照组，应用GTT观察3个月前后空腹C肽、GAD-Ab和胰岛素抗体（IAA）的变化。结果①GTT组患者应用GTT治疗3个月后GAD-Ab阳性率下降，转阴率为43％，与对照组比较差异有显著性（P〈0．01）。②IAA治疗前后，2组组内和组间比较差异均无显著性。③GTT组患者治疗后C肽水平略有上升，组内治疗前后比较差异无显著性，而与对照组比较差异有显著性（P〈0．05）。结论研究提示GTT对GAD-Ab具有免疫抑制作用，并有一定的改善B细胞功能的趋势。     

气管插管后持续性声嘶的原因及其治疗

目的：探讨气管插管后持续性声嘶的原因及评估杓状软骨复位的治疗效果。方法：对78例病人通过检查及疗效观察,确定声嘶原因,采用杓状软骨复位术及肉芽摘除术治疗。结果：78例中,71例为杓状软骨脱位（91．03％）,5例声带麻痹（6．41％）,2例喉内肉芽形成（2．56％）,杓状软骨脱位的病人全部治愈;声带麻痹治疗无效,喉肉芽形成的病人,1例治愈,另1例发音改善,结论：杓状软骨脱位,声带麻痹及喉内肉芽形成是气管插管后持续性声嘶的主要原因;杓状软骨复位术对杓状软骨脱位所致的声嘶疗效明显。     

诺雷德联合瑞宁得治疗绝经前和围绝经期晚期乳腺癌临床疗效观察

目的:观察诺雷德联合瑞宁得治疗绝经前和围绝经期晚期ER(+)和(或)PR(+)乳腺癌的内分泌治疗疗效和不良反应.方法:36例绝经前和围绝经期晚期乳腺癌患者,皮下注射诺雷德3.6mg,每28日1次,激素水平达绝经期后同时服用瑞宁得,每日1次,每次1mg.结果:完全缓解(CR)1例,部分缓解(PR)10例,稳定(SD)15例,进展(PD)10例,总有效率30.6%,临床获益率为58.3%.ER和PR同时阳性表达的及组织学分级Ⅰ级的有效率高,P<0.05;与HER-2表达无关,P>0.05;胸壁局部复发和骨转移治疗疗效优于内脏等其他转移,P<0.05.激素达绝经水平的诺雷德应用中位次数为3次.不良反应包括潮热、多汗、关节痛、乏力等,可耐受.结论:诺雷德联合瑞宁得治疗疗效肯定,不良反应轻微,是绝经前和围绝经期晚期乳腺癌内分泌治疗较好的选择.     

Anti-atherogenic effects of the aqueous extract of rhubarb in rats fed an atherogenic diet

The present study was designed to investigate whether the aqueous extract of rhubarb (AR) could prevent the development of atherosclerosis through regulating vascular inflammatory processes in rats fed with an atherogenic diet. AR significantly reduced plasma low-density lipoprotein-cholesterol, and increased plasma high-density lipoprotein-cholesterol in rats fed with an atherogenic diet. AR inhibited vascular expressions of endothelin-1 (ET-1) and endothelin-converting enzyme (ECE) induced in rats with an atherogenic diet. On the other hand, AR augmented the vascular expression of endothelial nitric oxide synthase (ecNOS) and restored vascular nitric oxide (NO) production. Furthermore, AR suppressed the elevated expression of vascular nuclear factor-kappaB (NF-kappaB) p65 as well as adhesion molecules, including intracellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1), and E-selectin in rats fed with an atherogenic diet. Also, AR decreased endothelial expression of ICAM-1 and ET-1 in aorta. These results suggest that AR suppresses the development of atherosclerosis in the atherogenic-diet rat model through inhibiting vascular expressions of proinflammatory and adhesion molecules via the regulation of nitric oxide and endothelin system.     

The bark of Betula platyphylla var. japonica inhibits the development of atopic dermatitis-like skin lesions in NC/Nga mice

The bark of Betula platyphylla Sukat. var. japonica Hara (Asian White Birch, AWB) is one of the herbs used in Eastern countries for the treatment of various inflammatory diseases including atopic dermatitis (AD). The present study was performed to examine if and how the bark of AWB inhibits the development of AD-like skin lesions in NC/Nga mice induced by repeated application of picryl chloride (PC). With this aim, we examined the skin symptom severity, itching behavior, serum immunoglobulin (Ig) E level and mRNA expression of cytokines at iliac and cervical lymph nodes in the mice. Oral administration of AWB extracts (25, 100 and 250 mg/kg) to the PC-treated mice inhibited the development of AD-like skin lesions as exemplified by a significant decrease in the total skin severity scores, itching behavior and a decrease in hypertrophy and infiltration of inflammatory cells into dermis. The serum IgE level was also significantly reduced by AWB extract. In the RT-PCR results, the expression of interleukin-4 mRNA was reduced by AWB extract, whereas the expression of interferon-gamma mRNA was not changed. These results suggest that AWB inhibits the development of AD-like skin lesions in NC/Nga mice through the suppression of the T-helper 2 cell response.     

颅内血肿体积个人计算机测量方法

目的:研究个人计算机测量法对颅内血肿体积测量的价值.方法:40例不同类型的颅内血肿分别使用CT定量软件及个人计算机Photoshop CS3 Extented软件测量其体积,分析不同方法的测量结果是否具有统计学意义.结果:个人计算机测量法与CT定量法所测颅内血肿体积差异无统计学意义(P＞0.05).结论:个人计算机测量...     

圆弧青霉提取物诱发人羊膜细胞程序外DNA合成及合成抑制的研究

从食管癌高发区河南省林县的粮食中,分离出5株圆弧青霉(Penicillium cyclopiumWestling)用大米做培养基,25℃培养两周,经氯仿:甲醇等连续提取后,得到棕褐色膏状提取物。用其中的4株,诱发出了人羊膜FL细胞株的程序外DNA合成(Unscheduled DNA Synthesis,UDS)与DNA合成抑制(DNA Synthesis Inhibition,DSI),与溶剂对照比较,具有显著性差异(P<0.05),并在一定程度上存在剂量效应关系;加S_9后,其生物学活性明显降低,推测此提取物中含有能引起人羊膜细胞DNA损伤的直接诱变剂。     

The antigenic analysis of haemorrhagic fever with renal syndrome viruses in China by monoclonal antibodies.

Thirty-six strains of haemorrhagic fever with renal syndrome (HFRS) virus were isolated from patients and a number of host animals in various areas in China. They were analysed by an immunofluorescence test (IFAT) using 10 monoclonal antibodies (McAbs) specific for the HFRS virus; antigenic differences among the strains have been demonstrated. The HFRS virus strains revealed nine different reactions with the McAbs, showing that there are at least nine different antigenic determinants including group-, type- and strain-specific. Analysis of the results shows that antigenic differences among the HFRS virus strains are mainly related to differences in the host animals.