首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   151篇
  免费   8篇
  国内免费   32篇
基础医学   15篇
临床医学   2篇
内科学   10篇
特种医学   1篇
外科学   59篇
综合类   62篇
预防医学   9篇
药学   23篇
中国医学   10篇
  2024年   1篇
  2023年   3篇
  2021年   4篇
  2018年   4篇
  2017年   1篇
  2016年   1篇
  2015年   3篇
  2014年   2篇
  2013年   2篇
  2012年   7篇
  2011年   9篇
  2010年   4篇
  2009年   9篇
  2008年   13篇
  2007年   21篇
  2006年   21篇
  2005年   18篇
  2004年   21篇
  2003年   17篇
  2002年   8篇
  2001年   1篇
  2000年   2篇
  1999年   1篇
  1997年   4篇
  1996年   3篇
  1995年   2篇
  1994年   2篇
  1993年   2篇
  1992年   1篇
  1991年   1篇
  1989年   3篇
排序方式: 共有191条查询结果,搜索用时 31 毫秒
101.
To investigate the expression and the role of three isoforms of Serum and Glucocorticoidinducible Kinase (SGK) in experimental diabetic nephropathy (DN), 12 male C57BL/6 mice of 8-weeks-old were divided into two groups. Streptozotocin (STZ)-induced diabetic nephropathy and normal controls were analyzed at the end of the 4th week after the induction of diabetes. Renal hemodynamics and histological studies were performed. The expression of SGK1 mRNA, SGK2 mRNA and SGK3 mRNA of kidney cortex were measured by RT-PCR, and the cortical SGK1 protein was detected with Western blotting. Our results showed that the blood glucose, blood HbA1c, 24h urinary protein, creatinine clearance and the renal index were all increased in DN group. More extracellular matrix (ECM) accumulation was observed. The level of cortical SGK1 mRNA and protein were up-regulated in DN group in comparison with control group. SGK2 and SGK3 mRNA were elevated in DN mice. In DN, mRNA level of three SGK isoforms and SGK1 protein were increased significantly. It is concluded that SGKs may contribute to the early renal injury of DN.  相似文献   
102.
Prostaglandin E1is a potent vasodilator as wellas aninhibitor of platelet aggregation.It has a pro-tective effect on kidney.Recently,it was reportedthat prostaglandin E1also could reduce the expres-sion of collagens and di minishthe number of prolif-erating glomerular resident cells[1].Large doses ofprostaglandin E1have to be administered intrave-nously by continuous infusion because it is rapidlyinactive inthe lung.Andit also causesirritationinblood vessels near the site of injection.Now wi…  相似文献   
103.
104.
目的:通过对中药苦芺的植物形态、生境、分布、使用进行考证,为苦芺正本清源。方法:查阅汉至明清时期的辞书及历代中草药书籍,对苦芺进行植物形态、生境、分布、使用溯源考证。结果:我国中草药书籍中苦芺的基源植物较混乱,分别有为地胆草、绿蓟、蒙山莴苣、白花败酱草之说。结论:通过查阅《中国植物志》及《浙江植物志》中绿蓟地域分布和植物形态特征及其化学成分及药理作用,并结合上述古籍文献及历代中草药书籍中苦芺的本草学内容进行比对分析,苦芺的基源植物应该为绿蓟较妥。  相似文献   
105.
为研究肾脏足细胞的分化特点及CD2相关蛋白(CD2-associated protein,CD2AP)在足细胞分化过程中的作用。采用RP—MI1640培养液在33C许可条件下培养永生化小鼠足细胞系(未分化组).转染针对CD2AP的小分子干扰RNA(small interfering RNA.siRNA)后置于37C非许可条件下培养(转染组),并将非许可条件下未转染组作为对照组。用MTT、法检测足细胞的生K速度;用RT—H、R方法检测CD2AP、WTI、synaptopodin和ncphrin mRNA表达;用Western blot检测CD2AP、  相似文献   
106.
美国研究显示,质子泵抑制剂(PPIs)是美国处方量排名第三的常用药,其中 >80% 用于预防应激性溃疡,预防应用PPIs 的住院患者中 >50% 无指征,各科医生对PPIs、应激性溃疡预防指征的认知都存在误区[1].PPIs制剂的使用金额普遍位居各级医疗机构前列,并且普遍存在无适应证用药问题[2].2020年1月1日医...  相似文献   
107.
To investigate the protective effects of eplerenone on adriamycin-induced renal injury and the possible mechanisms involved,36 male Sprague-Dawley rats were randomly divided into control group,adriamycin nephropathy(AN) group and eplerenone-treated group(100 mg.kg-1.d-1 eplerenone).Blood pressure,24-h urinary protein,serum potassium,sodium and creatinine were measured 28 days after adriamycin injection(a single tail intravenous injection of 6.5 mg/kg adriamycin).The morphological changes of renal tissues were observed by light and electron microscopy.Immunohistochemistry and Western blotting were performed to examine the expression of TGF-β1 and desmin in renal cortex.The results showed that 28 days after adriamycin injection,there were no significant changes in the level of serum potassium,sodium,creatinine concentrations and blood pressure values in the rats of the three groups.Meanwhile,the 24-h proteinuria excretion in the AN group was significantly higher than that in the control group(P<0.01),but that in the eplerenone-treated group was substantially reduced when compared with that in the AN group(P<0.05).Mild mesangial cell proliferation and matrix expansion,diffuse deformation and confluence of foot processes in podocytes were found in the AN group.By contrast,rats in the eplerenone-treated group exhibited obvious attenuation of these morphological lesions.The protein expression of TGF-β1 and desmin in the AN group was markedly up-regulated in contrast to that in the control group(P<0.01),whereas that in the eplerenone-treated group was much lower than in the AN group(P<0.05).It was concluded that eplerenone may ameliorate the proteinuria and the development of pathological alteration in adriamycin-induced nephropathy presumably via the inhibition of cytokine release,and restore the morphology of podocytes independent of its blood pressure-lowing effects.  相似文献   
108.
目的:主要对独立学院制药工程专业学生天然药物化学实验教学进行探讨。从五个方面进行剖析,来提高天然药物化学的实验教学。同时对天然药物化学实验进行改造,提高学生在实验中的思考及创新能力,节约资源,降低实验成本。  相似文献   
109.
目的研究血管紧张素Ⅱ(AngⅡ)Ⅰ型受体(AT1)拮抗剂坎地沙坦(candesartan)对糖尿病肾病(D iabetic nephrop-athy,DN)小鼠血清和糖皮质激素诱导的蛋白激酶1(SGK1)表达的影响及意义。方法采用链脲佐菌素(STZ)单次腹腔注射诱导小鼠糖尿病肾病(DN)模型。将正常C57BL/6小鼠随机分成3组,每组12只:正常对照组(N组)、糖尿病肾病组(D组)、Candesartan治疗组(DC组)。治疗8 wk后取肾组织,观察肾脏病理改变;半定量RT-PCR法检测各组肾皮质SGK1及结缔组织生长因子(CTGF)mRNA的表达;W estern b lot检测各组肾皮质中SGK1及CTGF蛋白的表达。结果与N组相比,D组小鼠肾重/体重、24 h尿蛋白量,肾小球滤过率均明显增加;肾皮质中SGK1、CTGF mRNA及蛋白质的表达均明显升高。经Candesartan干预后(DC组),相应生化指标较D组有明显改善,SGK1、CTGF的表达水平较D组亦有明显下调。纤维化指标CTGF的表达与SGK1呈正相关。结论Candesartan可以延缓糖尿病肾病的肾脏纤维化过程,它对细胞内SGK1信号转导途径的抑制作用可能是其抗纤维化作用的主要环节,该作用与AngⅡ-AT1途径被阻断有关。  相似文献   
110.
某三甲医院在创建癌痛规范化治疗示范病房过程中,依据《麻醉药品管理条例》、《处方管理办法》等法律法规,细化管理要求,优化管理流程,促进门诊麻醉药品管理水平的提高。但由于制度不完善和客观条件制约的原因,存在一些问题,也有待改进。  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号