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1.
目的:研究在胃癌组织中形成素样蛋白2(FMNL2)的表达及临床意义。方法:收集普外科30例胃癌组织标本及其对应的远癌组织,利用免疫组化法及实时定量PCR法检测胃癌中FMNL2蛋白及mRNA的表达情况,并分析其蛋白表达与临床病理因素之间的关系,运用数据库Kaplan-Meier分析胃癌的生存状况。结果:胃癌组织中FMNL2蛋白及mRNA的表达均明显高于对应的远癌组织(均P < 0.05);FMNL2蛋白表达与胃癌的淋巴结转移、TNM分期密切相关(均P < 0.05),而与患者的年龄、性别、浸润深度、分化程度以及远处转移之间没有显著相关性(均P>0.05);K-M生存曲线显示FMNL2表达水平与胃癌生存预后明显相关(均P < 0.05)。结论:FMNL2在胃癌组织中高表达,且与肿瘤的一些临床病理因素特别是淋巴结转移密切相关。FMNL2可能作为肿瘤转移、判断预后的标志基因。  相似文献   
2.
 目的 探讨粒细胞肉瘤(GS)的临床表现、病理诊断、治疗方法及预后。方法 回顾性分析10例GS患者的临床资料。结果 10例确诊为GS的患者中,5例为原发性GS,1例为急性早幼粒细胞白血病,3例为慢性髓细胞白血病,1例为骨髓增生异常综合征。所有患者采用手术、化疗或者伊马替尼治疗。1例失访;2例生存,其中1例使用含大剂量阿糖胞苷化疗方案的患者生存66个月;7例死亡,死亡患者的生存期为4~17个月。结论 GS临床罕见,细胞形态学检查及免疫组织化学检查对其准确诊断非常必要。GS临床预后差,急性髓细胞白血病样化疗方案为该病的主要治疗方法,高强度的化疗及造血干细胞移植治疗可以延长患者生存期。  相似文献   
3.
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【Objective】 To investigate the influence of endometrial polyps on clinical pregnancy of infertile patients. 【Methods】 Clinical data of 400 successfully followed-up infertile patients in our hospital with outpatient hysteroscopy from January 2011 to March 2012 were collect using retrospective case-control study. According to previous assisted reproduction situation, the patients were divided into the “assisted reproduction failed group” and “none assisted reproduction group”, and according to the outpatient hysteroscopy results,each group was further divided into “polypectomy subgroup” and “normal uterine cavity subgroup”. And the infertile patients were divided into two groups of “≤35 year” and “> 35 year” according to the age, incidence of endometrial polyps and pregnancy rate after endometrial polyps removed were investigated.【Results】 The clinical pregnancy rate of “polypectomy subgroup” was 40.91%, which was higher than 23.21% of “normal uterine cavity subgroup” in “assisted reproduction failed group”, the difference was statistically significant (P = 0.024) . The clinical pregnancy rate of “polypectomy subgroup” was 47.83%, which was higher than that of “normal uterine cavity subgroup” in “none assisted reproduction group”, the difference was not statistically significant (P = 0.103). There was no statistical difference between two age groups about the incidence of endometrial polyps in assisted reproduction failed patents(P = 0.123). And in none assisted reproduction group, the difference was statistically significant (P = 0.039), that in “≤35 year” was 25.8% and “> 35 year” was 12%. Regardless of assisted reproduction failed or none assisted reproduction group, clinical pregnancy rate after polyp been removed in different age groups showed no statistical difference (P = 0.127,P = 0.667). 【Conclusion】 Endometrial polyps is an independent factor affecting embryo implantation in assisted reproduction process, which may also be the factor related to infertility. Assisted reproductive failed patients of all age, especially those less than 35-years-old women without assisted reproduction. Early diagnosis and removal of endometrial polyps with hysteroscopy is useful to improve the clinical pregnancy.  相似文献   
4.
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【Objective】 To observe the changes of CD4+CD25+ regulatory T cells in the patients with allergic rhinitis after subcutaneous specific immunotherapy, and to investigate the long-term efficacy and mechanism of subcutaneous specific immunotherapy. 【Methods】 A total of 90 patients with allergic rhinitis were randomly allocated to receive either specific immunotherapy (SIT group, n = 45) or medical treatment (Control group, n = 45). Symptom scores, medication scores, and Rhinoconjunctivitis Quality of Life Questionnaire were assessed to evaluate the clinical efficacy. CD4+ CD25+ regulatory T cells were detected by flow cytometry (FCM). 【Results】 There was a significant difference in medication scores and no significant difference in symptom scores between the two groups after treatment. The patients in SIT group had lower intake of medication. The SIT group also had a significant improvement in the Rhinoconjunctivitis Quality of Life Questionnaire. CD4+ CD25+ regulatory T cells had a lower proportion in the patients with allergic rhinitis than in the healthy people. The proportion of CD4+CD25+ regulatory T cells had a significant improvement in the SIT group while it had no significant difference in the Control group at 3 years after treatment. 【Conclusion】 At 3 years after the specific immunotherapy, the patients with allergic rhinitis had lower intake of medication and a significant improvement in symptom and quality of life. It might be related to the influence of the function of the CD4+CD25+ regulatory T cells.  相似文献   
5.
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【Objective】 To identify the characteristics of the sequence Locus_168_Contig_1 from full cDNA sequence of Sporothrix schenckii by bioinformatics analysis and obtain its recombinant plasmid. 【Methods】The characterizations of gene structure and its deduced amino acid sequence encoding by the insert sequence of EST clone (Locus_168_Contig_1) from the S.schenckii full-length cDNA sequence was analyzed by using bioinformatics software packages such as BLASTx, SignalIP, InterProScan provided by websites of NCBI or Expasy. 【Results】 A complete open reading frame of 873bp was included in the full cDNA sequence encoding SPDS. The sequence had high homology with the amino acids sequence from other species in GenBank. It has an 88% homology with SPDS from Neurospora crassa. The SPDS homolog from Sporothrix schenckii was predicted to be an aliphatic, highly hydrophobic protein without plastid or mitochondrial localization sequence. It was predicted as a non-secreted protein. Phylogenetic tree showed that it has the highest homology with Neurospora crassa. The recombinant plasmid pET-30a(+)-SPDS was confirmed by PCR amplification and sequencing. 【Conclusion】 The characterizations of structure and function of SPDS from S. schenckii were obtained and the recombinant plasmid pET-30a (+)-SPDS was constructed successfully. Our study established a cornerstone for the research on the role of SPDS in the pathogenicity of S. schenckii.  相似文献   
6.
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【Objective】 To investigate the protective effect and mechanism of dexmedetomidine on the brain ischemic-reperfusion injury in rat. 【Methods】 Male Sprague-Dawley rats weighing 270-300 g were randomly divided into three groups (n = 14 each group):(1)dexmedetomidine group (Group Dex) received dexmedetomidine administration at a rate of 5 μg/kg/h for 2 h,(2)antagonist group (Group Dex+Yoh) was given yohimbine 1 mg/kg 10 min before the same dexmedetomidine administration as Group Dex and (3)control group (Group Con) received 0.9% sodium chloride at a corresponding rate as placebo. All rats were subjected to right middle cerebral arterial occlusion (MCAO) for 90 min. After allowing reperfusion for 24 h, the cerebral infarction volume, edema index and neurological scores were measured, the levels of interleukin (IL)-1β, tumor necrosis factor (TNF)-α and the expression of nuclear NF-κB p65 in brain tissue were evaluated. 【Results】 After brain reperfusion for 24 hours, the infarction volume of Group Dex (17 ± 2.8)% was significantly lower than that of Group Dex+Yoh (38 ± 4.9)% and Group Con (42 ± 5.7)% (P < 0.05), the edema index in Group Dex (1.021 ± 0.098) was decreased than that in Group Dex+Yoh (1.342 ± 0.137) and Group Con (1.417 ± 0.105,P < 0.05). Simultaneously, compared with Group Dex+Yoh or Group Con, the tissue levels of IL-1β, TNF-α, and the expression of nuclear NF-κB p65 were significantly reduced in Group Dex (all P < 0.05). 【Conclusions】 Dexmedetomidine can attenuate brain ischemic-reperfusion injury in rats partly through inhibiting the activation of NF-κB and suppressing the over-expression of pro-inflammatory factors.  相似文献   
7.
    
【Objective】 Mixed venous oxygen saturation (SvO2) is often used in cardiac surgeryto evaluate perioperative oxygen supply-and-demand balance and hemodynamic performance. The aim of the presentstudy was to define a cutoff point of SvO2 to evaluate perioperative risks in cardiacsurgery. 【Method】 One hundred and seventy patients underwent different cardiac surgeryincluding AVR, MVR, CABG, double valve procedure, combined procedures, aortic surgerywith circulation arrest,and acute CABG/valvular surgery. An epidural catheter wasput intra-operatively through the chest wall and the anteriorwall of the right ventricle into pulmonary artery as a trans-thoracicpulmonary artery catheter (TPAC) in all patients. SvO2 from TPAC on admission toICU were analyzed in relation to NYHA classification, EuroSCORE, aortic clampingtime, drain amount, colloid demand, postoperative stroke, length of ICU stay, andhospital mortality. A cutoff point of SvO2 was defined with ROC analysis. 【Result】Lower SvO2 associated with higher mortality. The best cutoff point was 53.5%. Thepatients were divided into two groups according to the cutoff point: 22 patientswith SvO2≤53.5% in group A and 148 patients with SvO2 >53.5% in group B. EuroSCOREin group A (4.6 ± 3.4) was significantly higher than group B (2.8 ± 2.3; P = 0.015),as was hospital mortality 18.18 % vs 1.35 % (P = 0.003), reoperation for bleeding/tamponade18.18 % vs 2.03% (P = 0.006), postoperative stroke 13.6% vs 1.5% (P = 0.016), andcolloid demand in the first postoperative day (1587 ± 732)mL vs (1091 ± 785)mL (P= 0.002). Four patients (2.4%) had in the first hours in ICU premature ventricularcontraction which disappeared soon after TPAC was removed. No TPAC related bleedingwas found after removal of the catheter. 【Conclusion】 SvO2 can be used quantitativelyto evaluate perioperative risks in a mixed cardiac surgery population and showedgood correspondence with EuroSCORE. TPAC is a safe and inexpensive method for samplingof SvO2.  相似文献   
8.
    
【Objective】 Double-stranded RNA-dependent protein kinase (PKR) is a hot pot in cancer research. However, it should be confirmed that whether PKR is an independent prognostic variable in the patients with non-small cell lung cancer (NSCLC). In the present study, we investigated the correlation between PKR and metabolism related biomarkers for NSCLC, identified the markers that could further improve the prognostic significance of PKR. On the other hand, we planned to study the relationship between PKR and some tumor metabolism related products, such as IGF-1R inhibitors and mTOR inhibitors, so as to improve the outcome of individualized target treatment. 【Methods】 Tissue samples obtained from 212 lung cancer patients were stained with an anti-PKR and anti-IGF-1R. Immunohistochemical expression was scored and used for Kaplan-Meier survival analysis. Western blotting was used to analysis PKR and p-PKR expression in 13 lung cancer cell lines, and Sulforhodamine B method (SRB) was used to detect drug inducing Cell inhibitory rate. 【Results】 The 5-year overall survival rate in PKRlow/IGF-1Rhigh patients (21.6%) was significantly lower than that of PKRhigh/IGF-1Rlow patients (74.6%) and others patients (58.2%) (P < 0.0001). Univariate and multivariate Cox analyses revealed that this PKR/IGF-1R combination was an independent predictor of overall survival. SRB suggested that IGF-1R inhibitor PPP can significantly inhibit cell growth in all of the six cell lines in 3 μmol/L dose in d1-3. In 0.3 μmol/L doses, PPP can inhibit the cell growth in H1792 and H292 cells,which weakly expressed PKR and/or p-PKR. There were no significant difference when treated in mTOR inhibitor Rapamyc in 3 dose levels(1,0.1 and 0.01 μmol/L) in 6 cell lines. 【Conclusion】PKR/IGF1-R is a significant predictor of prognosis for NSCLC. PKR/IGF1-R may be a promising approach to improving screening efficiency and predicting prognosis in NSCLC patients. H292, H1792, which are low expression of PKR, are sensitive to IGF-1R inhibitor PPP , but not to mTOR inhibitor Rapamycin. What’s more, it’s valuable to select the NSCLC patients who are sensitive to the IGF-1R inhibitor with the detection of PKR expression.  相似文献   
9.
    
【Objective】 Mitochondria thioredoxin (thioredoxin 2) and its modulated antioxidant enzymes compose the critical endogenous antioxidant system in human body to scavenge reactive oxygen species (ROS). We aimed to investigate the patterns of alteration to thioredoxin2 expression and antioxidants capacity in liver tissue during 24 h after liver transplantation in rats. 【Methods】 Forty Sprague Dawley (SD) rats were randomly divided into sham group, and 4, 8, 16, and 24 h after autologous orthotopic liver transplantation (AOLT) group. Rats in sham group only suffered from the process of laparotomy and vascular separation, while in other groups all subjected to AOLT. Liver tissues were collected for detection of pathological changes by light microscope, Trx2 expressions by Western blot, and changes of ROS levels and activities of antioxidants. 【Results】 AOLT resulted in severe liver injury in rats during 24 hours after reperfusion manifested as significant elevations in liver pathological scores as early as 4 hours after AOLT. There was also obvious oxidative damage that was evidenced with 1.6 to 2.0 fold increases of O2· or ·OH and MDA levels, accompanied with significant decreases (~30%) in the activity of SOD or catalase and a dramatic (~70%) decrease in level of TOC at 4 h and 8 h (P < 0.01 vs. Sham group). All the parameters restored gradually at 16 and 24 hours after AOLT. The expression of Trx2 in liver increased significantly as early as 4 hours and peaked at 24 hours after AOLT (~2.0 fold)(P < 0.05 vs. Sham group). 【Conclusion】 AOLT could result in severe liver injury, the extent of which coincidence with the oxidant/antioxidant system state manifested as exacerbating first and then alleviating gradually. Up-regulation of Trx2 expression was beneficial to synthesizing antioxidants and further enhancing the antioxidant capacity of liver tissue subjected to ischemia/ reperfusion injury during AOLT.  相似文献   
10.
目的:利用Meta分析方法比较国内外局部和全身应用糖皮质激素治疗突发性耳聋(Suddenhearingloss,SHL)的疗效,并探讨其安全性。方法:电子检索PubMed、OVID、CBM、CNKI、维普、万方数据库,系统地收集1971-2011年局部和全身给药治疗SHL的相关文献。根据预先制定的纳入和排除标准筛选文献,CochraneHandbook5.0严格评价纳入文献质量,提取数据,RevMan5.0软件进行Meta分析。结果:纳入文献7篇,均为随机对照试验。Meta分析结果显示:局部给药组与全身给药组总有效率的比值比(Oddsratio,OR)为2.01,95%可信区间(Confidentinterval,CI)为1.31-3.08。关于2种途径给药对血糖的影响,统计结果χ2=3.592,P>0.05。结论:虽然局部给予糖皮质激素治疗SHL与全身用药的不良反应无明显差异,但局部用药疗效优于全身用药,在临床中可优先考虑使用。  相似文献   
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