促黄体生成素基因免疫对前列腺增生模型鼠生殖内分泌的影响

目的 探讨LH基因免疫对前列腺增生模型鼠生殖内分泌的影响。方法 RT－PCR法从雌性大鼠垂体细胞中RNA扩增大鼠的促黄体素基因（LH）cDNA片段约（461bp）并克隆至T载体，获得重组质粒T－LH，限制酶酶切，酶连接，构建PCDNA3.1(-)/HbsAg/LH，经脂质体转染纯化的重组质粒至COS细胞中，通过肌肉注射构建的PCDNA3.1(-)/HbsAg/LH与前列腺增生大鼠，2个月内给药两次。结果 体外培养COS细胞，发现HBsAg与LH连接物表达较好，肌肉注射前列腺增生模型鼠重组质粒后，模型鼠LH与T的含量明显低于对照组。结论 PCDNA3.1(-)/HbsAg/LH可参与前列腺增生模型鼠生殖内分泌腺的调节。     

氧氟沙星片的药物动力学和生物利用度

在８例健康志愿者中进行国产与进口氧氟沙星片药物动力学和生物利用度研究。随机交叉试验设计单剂量口服４００ｍｇ，用ＨＰＬＣ测定血药浓度，按非室模型计算，求得２种制剂各项药物动力学参数，无显著性差异（Ｐ＞０．０５），以进口药片为标准（Ｆ＝１）求得国产药片的相对生物利用度为９２．２％。     

复方麝香注射液联合脑血肿引流术治疗中老年高血压脑出血疗效观察及费用对比

目的:探讨复方麝香注射液联合微创手术治疗中老年高血压脑出血的临床疗效.方法:将78例接受微创治疗的患者随机分组,两组均采用内科综合治疗.手术对照组在综合治疗基础上加用微创手术进行脑血肿引流;中西医结合组在微创手术治疗后加用复方麝香注射液(10～20 ml/d)静脉滴注1周.结果:中西医结合组显效率(66.67%)、有效率(82.05%)均明显高于手术对照组(46.15%和69.23%,P均<0.05),存活患者日常生活能力也明显优于手术对照组(P<0.05),意识恢复时间明显短于手术对照组(P<0.05),并发症的发生率(15.38%)明显低于手术对照组(38.46%,P<0.01),病死率(5.13%)明显低于手术对照组(10.26%,P<0.01),平均住院天数[(18.29±4.93)d]明显少于手术对照组[(26.23±5.82)d,P<0.05],平均住院费用[(5 916.23±826.39)元]明显少于手术对照组[(8 168.35±1 021.21)元,P<0.05].结论:脑血肿引流术后加用复方麝香注射液治疗中老年高血压脑出血,可降低病死率,减少并发症,降低病残程度,提高生存患者的生活质量,缩短住院时间,降低治疗费用.     

法莫替丁与H1受体拮抗剂联合治疗慢性荨麻疹124例疗效观察

124例单用H1受体拮抗剂治疗疗效差的慢性荨麻疹患，联合应用法莫替丁治疗4周，结果显示临床痊愈率和显效分别为85．4％和10．5％，表明法莫替丁与H1受体拮抗剂联合用于这类H1受体拮抗剂不能奏效的慢性荨麻疹患是一种有效的治疗方法。     

Differentiation of human epidermal stem cells into fibroblasts induced by TGF-β1 in vitro

Objective To investigate the correlation between human epidermal stem cell (hESCs) and hypertrophic scar or keloid. Methods Improved collagen Ⅳ-coated adhesion methods was used to isolate and culture the epidermal stem cells after neutral protease selectively digested the dermo-epidermal junctions. After the cells were cultured and expanded in vitro, and passage 3 hESCs were induced by different concentrations of TGF-β1 (0.1, 5.0, and 10.0 ng/ml). Morphological fea-tures and identification of these cells were meseasured by HE, Masson, immunohistochemical staining on the days 3 and 7, respectively. Results After induced by TGF-β1 for 3 and 7 days, the morpholo-gy of the epidermal stem cell (hESCs) was changed into fusiform shape, similar to fibroblasts. 70 % ofthe cell which was induced by TGF-β1 were blue stained in the cytoplasm by Masson stain, which is the distinctive method for collagen, suggesting collagen appeared or increased in the cells. The collagen concentrations in supernatants of hESCs were 0.4150±0.0014, 0.3380±0. 0020, and 0.3870±0.0020, much higher than that in control group (0.0780±0.0025) and normal skin fibro-blast group (0.15004±0.0051) (P<0.05). Immunohistochemical staining revealed that positive rates of these cells for anti-vimentin staining were more than (95.00±1.20)% in experiments and (5.70±0.20)% in control group. Conclusion The differentiantion of hESCs induced by TGF-β1 into fibro-blasts indicates that hESCs may play a role in the pathogenesis of hypetrophic scar and keloid.     

骨质疏松症动物模型

动物模型在骨质疏松症的研究中广为采用，目前常用的动物有大鼠、小鼠、狗、小型猪、绵羊、兔、灵长目等，各有优点和缺点。研究者应根据实验要求和目的，慎重选择。常用的造模方法有去势、药物诱导和制动致骨质疏松症，最后通过多种指标综合分析，实现对骨质疏松症动物模型的全面判断。     

以高钙性肾病为突出表现的原发性甲状旁腺功能亢进1例

以高钙性肾病为突出表现的原发性甲状旁腺功能亢进１例大连医科大学附属第二医院肾内科（１１６０２３）尹永红麻军患者男，４２岁。以多饮、多尿２年，恶心、呕吐３个月为主诉入院。２年前出现烦渴、多饮，每日饮水量７５００～１００００ｍｌ，多尿、夜尿增多。未介意。...     

鼻腔及鼻窦出血性坏死性息肉

鼻腔及鼻窦出血性坏死性息肉临床上并非罕见，但不易与恶性肿瘤鉴别。为探讨此病的临床特征及其治疗方式，报道如下。     

松节油合成的杀虫增效剂

杀虫增效剂是指对昆虫没有或者很少有杀虫效果的一类化学品,但当它与某些杀虫剂混合使用,能提高杀虫剂的药效,从而达到减少杀虫剂用量,降低成本,减少环境污染的目的。同时,随着长时间的用药,许多害虫对一些杀虫剂均有不同程度的抗性,加入增效剂也是减少抗性的手段之一。 松节油是松脂加工后得到的萜烯类物质,