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肿瘤是一种严重威胁人类健康的疾病,其发生发展历经漫长而复杂的过程。深入探究肿瘤分子发病机制将有助于肿瘤早期诊断和开发新的抗肿瘤药物。小核糖核酸(miRNA)是一种小片段的RNA,它通过抑制靶基因表达影响肿瘤的发展进程。本文以miRNA为中心,系统阐述miRNA参与肿瘤进程的分子机制,miRNA在肿瘤治疗以及循环miRNA在肿瘤早期诊断和预后评估方面的应用前景;数据库在肿瘤相关分子机制研究及筛选肿瘤发展进程中miRNA调控关键基因的应用。希望通过本文与广大研究工作者共同努力推动肿瘤的机制研究。 相似文献
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目的 基于网络药理学和生物信息学探讨"骨碎补-淫羊藿"治疗骨质疏松的分子机制,为骨质疏松治疗提供新的靶点.方法 通过TCMSP数据库筛选"骨碎补-淫羊藿"的活性成分,联合UniProt数据库预测其调控靶点,并根据GEO数据库预测治疗骨质疏松的靶点.借助R语言获取治疗骨质疏松的有效靶点,并构建"药物-成分-靶点-通路"网... 相似文献
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目的寻找准确、便捷的细菌耐药性统计系统。方法通过东方旗云软件与实验室细菌鉴定仪的连接,将细菌药敏结果直接导如whonet系统。结果可以准确、简便、快捷的统计细菌耐药性,以便监测细菌耐药趋势,合理指导临床用药。结论东方旗云软件可LIS系统联合在实验室信息系统管理与细菌耐药性统计方面有重要实用价值。 相似文献
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New and emerging fish and shellfish diseases represent an important constraint to the growth and sustainability of many aquaculture sectors and have also caused substantial economic and environmental impacts in wild stocks. This paper details the results of 8 years of a monitoring programme for emerging aquatic animal diseases reported around the world. The objectives were to track global occurrences and, more specifically, to identify and provide advanced warning of disease threats that may affect wild and farmed fish stocks in the UK. A range of electronic information sources, including Internet newsletters, alerting services and news agency releases, was systematically searched for reports of new diseases, new presentations of known pathogens and known diseases occurring in new geographic locations or new host species. A database was established to log the details of key findings, and 250 emerging disease events in 52 countries were recorded during the period of study. These included 14 new diseases and a further 16 known diseases in new species. Viruses and parasites accounted for the majority of reports (55% and 24%, respectively), and known diseases occurring in new locations were the most important emerging disease category (in which viruses were dominant). Emerging diseases were reported disproportionally in salmonid species (33%), in farmed populations (62%) and in Europe and North America (80%). The lack of reports from some regions with significant aquaculture or fishery production may indicate that emerging diseases are not being recognized in these areas owing to insufficient surveillance or testing or that these events are being under‐reported. The results are discussed in relation to processes underpinning disease emergence in the aquatic environment. 相似文献
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Summary. Although haemophilia is an expensive disorder, no studies have estimated health care costs for Americans with haemophilia enrolled in Medicaid as distinct from those with employer‐sponsored insurance (ESI). The objective of this study is to provide information on health care utilization and expenditures for publicly insured people with haemophilia in the United States in comparison with people with haemophilia who have ESI. Data from the MarketScan® Medicaid Multi‐State, Commercial and Medicare Supplemental databases were used for the period 2004?2008 to identify cases of haemophilia and to estimate medical expenditures during 2008. A total of 511 Medicaid‐enrolled males with haemophilia were identified, 435 of whom were enrolled in Medicaid for at least 11 months during 2008. Most people with haemophilia qualified for Medicaid based on ‘disability’. Average Medicaid expenditures in 2008 were $142,987 [median, $46,737], similar to findings for people with ESI. Average costs for males with haemophilia A and an inhibitor were 3.6 times higher than those for individuals without an inhibitor. Average costs for 56 adult Medicaid enrollees with HCV or HIV infection were not statistically different from those for adults without the infection, but median costs were 1.6 times higher for those treated for blood‐borne infections. Haemophilia treatment can lead to high costs for payers. Further research is needed to understand the effects of public health insurance on haemophilia care and expenditures, to evaluate treatment strategies and to implement strategies that may improve outcomes and reduce costs of care. 相似文献
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