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991.
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Yunlong Shan Qi Ni Qixiang Zhang Mengying Zhang Bin Wei Lingge Cheng Chongjin Zhong Xinyu Wang Qingqing Wang Jiali Liu Jingwei Zhang Jingjing Wu Guangji Wang Fang Zhou 《药学学报(英文版)》2022,12(4):1825-1839
Vascular abnormality is a hallmark of most solid tumors and facilitates immune evasion. Targeting the abnormal metabolism of tumor endothelial cells (TECs) may provide an opportunity to improve the outcome of immunotherapy. Here, in comparison to vascular endothelial cells from adjacent peritumoral tissues in patients with colorectal cancer (CRC), TECs presented enhanced glycolysis with higher glyceraldehyde-3-phosphate dehydrogenase (GAPDH) expression. Then an unbiased screening identified that osimertinib could modify the GAPDH and thus inhibit its activity in TECs. Low-dose osimertinib treatment caused tumor regression with vascular normalization and increased infiltration of immune effector cells in tumor, which was due to the reduced secretion of lactate from TECs by osimertinib through the inhibition of GAPDH. Moreover, osimertinib and anti-PD-1 blockade synergistically retarded tumor growth. This study provides a potential strategy to enhance immunotherapy by targeting the abnormal metabolism of TECs. 相似文献
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三七总苷联合葛根黄酮治疗不稳定型心绞痛的机制探讨 总被引:1,自引:0,他引:1
目的观察三七总苷联合葛根黄酮对不稳定型心绞痛的治疗效果,并进一步探讨其可能的治疗机制。方法随机将64例不稳定型心绞痛患者分为2组,分别给予常规抗不稳定型心绞痛治疗(A组)及在常规治疗基础上添加三七总苷注射液静脉滴注及口服葛酮通络胶囊(B组),治疗2周。观察2组临床疗效以及治疗前后血浆中纤溶酶原激活物(t-PA)及抑制物(PAI)、可溶性细胞间黏附分子-1(sICAM-1)、C反应蛋白(CRP)、基质金属蛋白酶-9、氧化型低密度脂蛋白(ox-LDL)的水平及超氧化物歧化酶(SOD)的活力变化并进行对比分析。结果 B组的临床疗效显著高于A组;B组的t-PA水平治疗后明显升高、PAI水平明显降低(P均〈0.05),而A组t-PA、PAI治疗前后均无明显变化(P均〉0.05);2组的SICAM-1、CRP及MMP-9水平治疗后均明显降低(P均〈0.05),B组降低的幅度较A组更显著(P均〈0.05);A组的ox-LDL治疗前后无明显变化,而B组治疗后水平明显降低(P〈0.05);2组的SOD活力在治疗后均升高(P均〈0.05),B组的升高幅度较A组更显著(P〈0.05)。结论三七总苷联合葛根黄酮治疗不稳定型心绞痛临床疗效肯定,其通过调节血脂、改善纤溶活性、减轻炎症反应及抗氧化等,从而降低冠状动脉事件的再发生率。 相似文献
995.
雷公藤减毒研究进展 总被引:1,自引:4,他引:1
雷公藤为治疗类风湿性关节炎常用中药,具有清热解毒,祛风除湿,消肿止痛,杀虫止痒的功用,现代药理研究表明其具有抗炎、镇痛、抗肿瘤及免疫调节等作用,临床主要用于治疗免疫性疾病、肾脏性疾病、皮肤性疾病等,对类风湿性关节炎的疗效尤为显著。但严重的毒副作用,尤其是肝肾毒性,限制了其临床应用,成为迫切需要解决的难题,故雷公藤的减毒研究成为近年来的研究热点。本课题组主要研究雷公藤的经皮给药对其减毒增效的作用,但目前雷公藤的应用困境仍然没有得到改善,故对2006年至2016年近10年来雷公藤减毒研究的相关文献进行检索,包括传统的炮制减毒、配伍减毒和现代的制剂减毒、结构修饰减毒、生物技术减毒以及其相互的联合应用等,分析雷公藤的减毒现状和困境,对比现存减毒方式间的差异,为雷公藤减毒增效研究提供思路,促进其合理开发和临床安全应用,也为其他有毒中药的合理应用提供参考。 相似文献
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Background:The effects of omega-3 fatty acid on cardiovascular health obtained inconsistent results. A systematic review and meta-analysis were therefore conducted to assess the effects of omega-3 fatty acid supplementation for primary and secondary prevention strategies of major cardiovascular outcomes.Methods:The databases of PubMed, Embase, and the Cochrane library were systematically searched from their inception until September 2020. Relative risks (RRs) with 95% confidence intervals were used to assess effect estimates by using the random-effects model.Results:Twenty-eight randomized controlled trials involving 136,965 individuals were selected for the final meta-analysis. Omega-3 fatty acid was noted to be associated with a lower risk of major cardiovascular events (RR, 0.94; 95% CI, 0.89–1.00; P = .049) and cardiac death (RR, 0.92; 95% CI, 0.85–0.99; P = .022). However, no significant differences was noted between omega-3 fatty acid and the control for the risks of all-cause mortality (RR, 0.97; 95% CI, 0.92–1.03; P = .301), myocardial infarction (RR, 0.90; 95% CI, 0.80–1.01; P = .077), and stroke (RR, 1.02; 95% CI, 0.94–1.11; P = .694).Conclusions:Major cardiovascular events and cardiac death risks could be avoided with the use of omega-3 fatty acid. However, it has no significant effects on the risk of all-cause mortality, myocardial infarction, and stroke. 相似文献
998.
Yuan Fang Emad I. M. Khater Jing-Bo Xue Enas H. S. Ghallab Yuan-Yuan Li Tian-Ge Jiang Shi-Zhu Li 《Viruses》2022,14(7)
There are at least five common mosquito-borne viruses (MBVs) recorded in Egypt, including dengue virus (DENV), Rift Valley fever virus (RVFV), West Nile virus (WNV), Chikungunya virus, and Sindbis virus. Unexpected outbreaks caused by MBVs reflect the deficiencies of the MBV surveillance system in Egypt. This systematic review characterized the epidemiology of MBV prevalence in Egypt. Human, animal, and vector prevalence studies on MBVs in Egypt were retrieved from Web of Science, PubMed, and Bing Scholar, and 33 eligible studies were included for further analyses. The monophyletic characterization of the RVFV and WNV strains found in Egypt, which spans about half a century, suggests that both RVFV and WNV are widely transmitted in this nation. Moreover, the seropositive rates of DENV and WNV in hosts were on the rise in recent years, and spillover events of DENV and WNV to other countries from Egypt have been recorded. The common drawback for surveillance of MBVs in Egypt is the lack of seroprevalence studies on MBVs, especially in this century. It is necessary to evaluate endemic transmission risk, establish an early warning system for MBVs, and develop a sound joint system for medical care and public health for managing MBVs in Egypt. 相似文献
999.
黄方 《公共卫生与预防医学》2008,19(5):81-81
消毒效果与医院感染密切相关。为了解政和县医疗机构消毒质量状况,进一步加强消毒卫生监测管理,依据《中华人民共和国传染病防治法》和《消毒管理办法》的规定,2006年8-10月对全县各级医疗机构进行消毒质量监测,现将结果报告如下。 相似文献
1000.