FDA是美联邦政府卫生部(DEPARTMENT OF HEALTH AND HUMAN SERVICE简称DHHS直译应为卫生及人类服务部,实即卫生部及有关福利事宜)下的直属机构。是对食品及药物等方面制定规范及进行管理的权威性机关。FDA除主要对食品、药物外还包括有...FDA是美联邦政府卫生部(DEPARTMENT OF HEALTH AND HUMAN SERVICE简称DHHS直译应为卫生及人类服务部,实即卫生部及有关福利事宜)下的直属机构。是对食品及药物等方面制定规范及进行管理的权威性机关。FDA除主要对食品、药物外还包括有生物制品,化妆品及医疗设施等的管理,与农业部(负责肉类、疏菜、水果的管理)、环境保护局(E.P.A)(负责空气、饮水、废弃物、农药、毒品等的管理)分工统管环境中的化学物。它们都是以立法为根据的代表政府的执法机关。 FDA的前身为化学部(DEPARTMENT OF CHEMLSTRY)建于1906年。现有工作人员约8。展开更多
Infections caused by intracellular bacterial pathogens are difficult to treat since most antibiotics have low cell permeability and undergo rapid degradation within cells.The rapid development and dissemination of ant...Infections caused by intracellular bacterial pathogens are difficult to treat since most antibiotics have low cell permeability and undergo rapid degradation within cells.The rapid development and dissemination of antimicrobial–resistant strains have exacerbated this dilemma.With the increasing knowledge of host–pathogen interactions,especially bacterial strategies for survival and proliferation within host cells,host-directed therapy(HDT)has attracted increased interest and has emerged as a promising antiinfection method for treating intracellular infection.Herein,we applied a cell-based screening approach to a US Food and Drug Administration(FDA)-approved drug library to identify compounds that can inhibit the intracellular replication of Salmonella Typhimurium(S.Typhimurium).This screening allowed us to identify the antidiarrheal agent loperamide(LPD)as a potent inhibitor of S.Typhimurium intracellular proliferation.LPD treatment of infected cells markedly promoted the host autophagic response and lysosomal activity.A mechanistic study revealed that the increase in host autophagy and elimination of intracellular bacteria were dependent on the high expression of glycoprotein nonmetastatic melanoma protein B(GPNMB)induced by LPD.In addition,LPD treatment effectively protected against S.Typhimurium infection in Galleria mellonella and mouse models.Thus,our study suggested that LPD may be useful for the treatment of diseases caused by intracellular bacterial pathogens.Moreover,LPD may serve as a promising lead compound for the development of anti-infection drugs based on the HDT strategy.展开更多
医疗器械唯一标识(unique device identifier,UDI)是医疗器械唯一性识别码,是准确采集医疗器械全生命周期数据的基础,已成为当前医疗器械监管的全球通用语言。2013年9月24日,美国食品药品管理局(Food and Drug Administratio,FDA)发布...医疗器械唯一标识(unique device identifier,UDI)是医疗器械唯一性识别码,是准确采集医疗器械全生命周期数据的基础,已成为当前医疗器械监管的全球通用语言。2013年9月24日,美国食品药品管理局(Food and Drug Administratio,FDA)发布医疗器械唯一标识系统(unique device identification system,UDI system)最终规定并正式实施UDI,为各国以全球协调方式实施UDI提供了经验。本文将系统研究美国UDI发展沿革、法规体系、核心内容与工作进展,对美国UDI实施方案、发码机构、全球UDI数据库(GUDID)及应用情况进行介绍,为我国开展并推进UDI工作提供借鉴和思路。展开更多
真实世界研究(Real World Study,RWS)是在真实临床实践中评估干预措施安全性和有效性的一种临床研究。2018年12月,美国食品药品监督管理局(FDA)发布了《真实世界证据计划框架》,以指导未来用于新药审批决策的真实世界研究的开展。《真...真实世界研究(Real World Study,RWS)是在真实临床实践中评估干预措施安全性和有效性的一种临床研究。2018年12月,美国食品药品监督管理局(FDA)发布了《真实世界证据计划框架》,以指导未来用于新药审批决策的真实世界研究的开展。《真实世界证据计划框架》因其用途属性,对开展中药新药的真实世界研究有重要参考价值。作者通过对框架核心内容的解读,同时结合真实世界临床研究与中医药干预措施的共通点进行分析,可为进一步推动RWS应用于中药新药的研发提供参考。展开更多
文摘FDA是美联邦政府卫生部(DEPARTMENT OF HEALTH AND HUMAN SERVICE简称DHHS直译应为卫生及人类服务部,实即卫生部及有关福利事宜)下的直属机构。是对食品及药物等方面制定规范及进行管理的权威性机关。FDA除主要对食品、药物外还包括有生物制品,化妆品及医疗设施等的管理,与农业部(负责肉类、疏菜、水果的管理)、环境保护局(E.P.A)(负责空气、饮水、废弃物、农药、毒品等的管理)分工统管环境中的化学物。它们都是以立法为根据的代表政府的执法机关。 FDA的前身为化学部(DEPARTMENT OF CHEMLSTRY)建于1906年。现有工作人员约8。
基金supported by the National Key Research and Development Program of China(2021YFD1801000)the Natural Science Foundation of China(32373066)+1 种基金the Natural Science Foundation of Jilin Province(20230101142JC)the Fundamental Research Funds for the Central Universities.
文摘Infections caused by intracellular bacterial pathogens are difficult to treat since most antibiotics have low cell permeability and undergo rapid degradation within cells.The rapid development and dissemination of antimicrobial–resistant strains have exacerbated this dilemma.With the increasing knowledge of host–pathogen interactions,especially bacterial strategies for survival and proliferation within host cells,host-directed therapy(HDT)has attracted increased interest and has emerged as a promising antiinfection method for treating intracellular infection.Herein,we applied a cell-based screening approach to a US Food and Drug Administration(FDA)-approved drug library to identify compounds that can inhibit the intracellular replication of Salmonella Typhimurium(S.Typhimurium).This screening allowed us to identify the antidiarrheal agent loperamide(LPD)as a potent inhibitor of S.Typhimurium intracellular proliferation.LPD treatment of infected cells markedly promoted the host autophagic response and lysosomal activity.A mechanistic study revealed that the increase in host autophagy and elimination of intracellular bacteria were dependent on the high expression of glycoprotein nonmetastatic melanoma protein B(GPNMB)induced by LPD.In addition,LPD treatment effectively protected against S.Typhimurium infection in Galleria mellonella and mouse models.Thus,our study suggested that LPD may be useful for the treatment of diseases caused by intracellular bacterial pathogens.Moreover,LPD may serve as a promising lead compound for the development of anti-infection drugs based on the HDT strategy.
文摘医疗器械唯一标识(unique device identifier,UDI)是医疗器械唯一性识别码,是准确采集医疗器械全生命周期数据的基础,已成为当前医疗器械监管的全球通用语言。2013年9月24日,美国食品药品管理局(Food and Drug Administratio,FDA)发布医疗器械唯一标识系统(unique device identification system,UDI system)最终规定并正式实施UDI,为各国以全球协调方式实施UDI提供了经验。本文将系统研究美国UDI发展沿革、法规体系、核心内容与工作进展,对美国UDI实施方案、发码机构、全球UDI数据库(GUDID)及应用情况进行介绍,为我国开展并推进UDI工作提供借鉴和思路。
文摘真实世界研究(Real World Study,RWS)是在真实临床实践中评估干预措施安全性和有效性的一种临床研究。2018年12月,美国食品药品监督管理局(FDA)发布了《真实世界证据计划框架》,以指导未来用于新药审批决策的真实世界研究的开展。《真实世界证据计划框架》因其用途属性,对开展中药新药的真实世界研究有重要参考价值。作者通过对框架核心内容的解读,同时结合真实世界临床研究与中医药干预措施的共通点进行分析,可为进一步推动RWS应用于中药新药的研发提供参考。
