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   92篇
  免费   34篇
  国内免费   7篇
耳鼻咽喉   1篇
儿科学   2篇
基础医学   3篇
临床医学   6篇
内科学   26篇
皮肤病学   2篇
神经病学   9篇
特种医学   2篇
外科学   2篇
综合类   14篇
预防医学   65篇
药学   1篇
  2024年   1篇
  2023年   10篇
  2022年   10篇
  2021年   20篇
  2020年   9篇
  2019年   7篇
  2018年   10篇
  2017年   4篇
  2016年   7篇
  2015年   2篇
  2014年   8篇
  2013年   5篇
  2012年   3篇
  2011年   3篇
  2010年   6篇
  2009年   11篇
  2008年   1篇
  2007年   2篇
  2006年   3篇
  2005年   3篇
  2003年   3篇
  1999年   2篇
  1998年   1篇
  1996年   2篇
排序方式: 共有133条查询结果,搜索用时 78 毫秒
131.
Background and study aimThere is currently a lack of sensitive biomarkers for the diagnosis of hepatocellular carcinoma (HCC). Low expression of cylindromatosis (CYLD), a tumor suppressor gene that encodes a deubiquitinase, is associated with the development of HCC. The present study, therefore, aimed to determine the clinical utility of measuring CYLD expression in the early diagnosis of HCC.Patients and methodsThe present study comprised 257 patients from the Affiliated Hospital of Qingdao University including 90 patients with HCC, 41 patients with liver cirrhosis (LC), 46 patients with hepatitis B (HB), and 80 healthy controls. qPCR was used to measure the amounts of CYLD mRNA in stored blood samples. The sensitivity and specificity of CYLD mRNA in diagnosing HCC was analyzed using receiver operator characteristic (ROC) curves. We also obtained HCC data from the Oncomine database to further verify our results.ResultsThe relative levels of CYLD mRNA in peripheral blood from patients with HCC (median, 0.060; interquartile range [IQR], 0.019–0.260) was significantly lower than in blood from patients with LC (median, 3.732; IQR, 0.648–14.573), HB (median, 0.419; IQR, 0.255–1.809) and healthy controls (median, 1.262; IQR, 0.279–3.537; P < 0.05). CYLD mRNA levels in peripheral blood were significantly higher in patients with LC compared to healthy controls and patients with HB. Oncomine data demonstrated that CYLD mRNA expression levels in HCC tissues were significantly lower than in normal liver tissues. ROC analysis demonstrated that the combined use of peripheral blood levels of CYLD and AFP had the greatest diagnostic accuracy for HCC (area under the curve (AUC), 0.897; 95 % confidence interval [CI], 0.853–0.942). CYLD had utility as a supplementary marker to AFP for diagnosing HCC.ConclusionCirculating levels of CYLD mRNA are significantly decreased in patients with HCC, indicating CYLD may have utility as a biomarker of HCC. Combined measurement of CYLD mRNA and AFP protein had the greatest diagnostic accuracy.  相似文献   
132.
Background and aimsThis study aims to investigate the association of Life's Essential 8 (LE8), the recently updated algorithm for quantifying cardiovascular health (CVH) by the American Heart Association (AHA), with long-term outcomes among US adults.Methods and resultsThis population-based prospective cohort study analyzed data of 23,110 participants aged 20 years or older from the National Health and Nutrition Examination Survey from 2005 to 2014 and their linked mortality data through December 2019. LE8 score (range 0–100) was measured according to AHA definitions and was categorized into low (0–49), moderate (50–79), and high (80–100) CVH. The weighted mean age of the study population was 47.0 years (95% confidence interval [CI], 46.4–47.5 years), and 11,840 were female (weighted percentage, 51.5%; 95% CI, 50.9–52.1%). During a median follow-up period of 113 months (up to 180 months), 2942 all-cause deaths occurred, including 738 CVD deaths. The LE8 score was significantly and inversely related to mortality from all causes (adjusted hazard ratio [HR] for per 10-score increase in LE8 score, 0.86; 95% CI, 0.82–0.90) and cardiovascular disease (adjusted HR for per 10-score increase in LE8 score, 0.81; 95% CI, 0.75–0.87). Compared with participants having low CVH, those having high CVH had a reduction of 40% (adjusted HR, 0.60; 95% CI, 0.48–0.75) in the risk for all-cause mortality and 54% (adjusted HR, 0.46; 95% CI, 0.31–0.68) in the risk for cardiovascular mortality.ConclusionsHigher LE8 score was independently associated with lower risks of all-cause and cardiovascular mortality among US adults.  相似文献   
133.
AimsData on the association between nut consumption and prostate cancer risk are conflicting. Therefore, this systematic review and dose-response meta-analysis aimed to summarize available findings from observational studies on the associations of nut intake with risk of total, advanced, non-advanced, and fatal prostate cancers.Data synthesisWe searched the online databases of PubMed, Scopus, and Web of Science as well as Google Scholar using appropriate keywords to identify eligible articles up to September 2022. In total, 11 articles with a total sample size of 287,786 participants and 32,213 cases of prostate cancer were included in the current systematic review and meta-analysis. By comparing the highest and lowest intake of total nuts, pooled relative risks (RRs) and 95% confidence intervals (95% CIs) for total, advanced, non-advanced, and fatal prostate cancers were 0.94 (95% CI: 0.85–1.04, P = 0.22), 1.10 (95% CI: 0.98–1.24, P = 0.12), 0.97 (95% CI: 0.85–1.11, P = 0.69), 0.97 (95% CI: 0.79–1.18, P = 0.73), respectively, which indicated non-significant inverse associations for total, non-advanced, and fatal prostate cancers and a non-significant positive association for advanced prostate cancer. In the dose-response analyses, we found no evidence of a linear or non-linear association between total nut intake and prostate cancer risk. Data on other types of nuts, including walnut, tree nuts, peanut, and peanut butter, were not sufficient for performing a meta-analysis.ConclusionWe found no significant association between nut intake and risk of total, advanced, non-advanced, and fatal prostate cancer. Further studies are required to confirm our findings.Prospero registration codeCRD42022347094.Ethical approvalNot required.  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