发表一篇学和医学成像类SCI论文
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Abstract:
:Human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) hold great potential for personalized cardiac safety prediction, particularly for that of drug-induced proarrhythmia. However, hiPSC-CMs fire spontaneously and the variable beat rates of cardiomyocytes can be a confounding factor that interferes with data interpretation. Controlling beat rates with pacing may reduce batch and assay variations, enable evaluation of rate-dependent drug effects and facilitate the comparison of results obtained from hiPSC-CMs with those from adult human cardiomyocytes. As electrical stimulation (E-pacing) of hiPSC-CMs has not been validated with high-throughput assays, herein, we compared the responses of hiPSC-CMs exposed to classic cardiac ion channel blockers under spontaneous beating and E-pacing conditions utilizing microelectrode array (MEA) technology. We found that compared to spontaneously beating hiPSC-CMs, E-pacing: 1) reduced overall assay variabilities; 2) showed limited changes of field potential duration (FPD) to pacemaker channel block; 3) revealed reverse rate dependence of multiple ion channel blockers on FPD; 4) eliminated the effects of sodium channel block on depolarization spike amplitude and spike slope due to a software error in acquiring depolarization spike at cardiac pacing mode. MEA optogenetic pacing and current clamp recordings at various stimulation frequencies demonstrated rate-dependent block of sodium channels in hiPSC-CMs as reported in adult cardiomyocytes. In conclusion, pacing enabled more accurate rate- and concentration-dependent drug effect evaluations. Analyzing responses of hiPSC-CMs under both spontaneously beating and rate-controlled conditions may help better assess the effects of test compounds on cardiac electrophysiology and evaluate the value of the hiPSC-CM model.
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最新影响因子:4.109 | 期刊ISSN:1096-6080 | CiteScore:4.16 |
出版周期:Monthly | 是否OA:YES | 出版年份:1998 |
自引率:6.30% | 研究方向:医学-毒理学 |
出版地区:UNITED STATES |
SCI期刊coverage:Science Citation Index Expanded(科学引文索引扩展)
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Toxicological Sciences publishes research articles that are broadly relevant to assessing the potential adverse health effects resulting from exposure of human or animals to chemicals drugs natural products or synthetic materials. Manuscripts are published in all areas of toxicology both descriptive and mechanistic as well as interpretive or theoretical investigations that elucidate the risk assessment implications of exposure to toxic agents alone or in combination. Studies may involve experimental animals or human subjects or they may focus on in vitro methods or alternatives to the use of experimental animals. Presenting Articles on Toxicologic studies which are structural biochemical or functional in nature Investigations of the effects of dose route of exposure metabolism or species on toxic responses Statistical or mechanism-based approaches to risk assessment. New methods in toxicology. Featured Sections Original research articles short communications Symposium summaries Workshop or Roundtable summaries Reviews Commentaries Research Areas Include Biochemical toxicology pharmacokinetics pharmacodynamics Reproductive and developmental toxicology carcinogenesis Immunotoxicology neurotoxicology pulmonary toxicology In vitro methods alternatives to experimental animals Safety evaluation risk assessment.
毒理学发表的研究文章与评估人类或动物接触化学药物、天然产品或合成材料可能对健康造成的不利影响有着广泛的相关性。在毒理学的所有领域,无论是描述性的还是机械性的,以及解释性的或理论性的调查中都发表了手稿,阐明了单独或结合接触有毒物质的风险评估影响。研究可能涉及实验动物或人类实验对象,也可能侧重于体外方法或实验动物使用的替代方法。发表毒理研究的文章,这些毒理研究属于结构性生化或功能性研究,研究暴露代谢或物种的剂量路线对毒性反应的影响,统计或基于机制的风险评估方法。毒物学的新方法。主要研究章节原始文章短通讯研讨会摘要研讨会或圆桌总结评论评论领域包括生化毒物学药物动力学药物动力学生殖和发育毒物学致癌免疫毒物学神经毒物学肺毒物学实验动物安全评价风险评估的替代方法。
大类(学科) | 小类(学科) | 学科排名 |
医学 |
TOXICOLOGY (毒理学) 2区 |
14/94 |
年度总发文量 | 年度论文发表量 | 年度综述发表量 |
239 | 230 | 9 |
引文计数(2018)
文献(2015-2017)
3319次引用
797篇文献
序号 | 类别 | 排名 | 百分位 |
1 |
大类(学科):Pharmacology, Toxicology and Pharmaceutics
小类(学科):Toxicology
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研究方向:医药科学 预防医学 卫生毒理
审稿时间: 2个月内
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审稿时间: 2个月内 接受率: 比较困难(25%命中)
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研究方向:毒理
审稿时间: 6个月内 接受率: 比较困难(25%命中)
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研究方向:医药科学 预防医学 卫生毒理
审稿时间: 1个月内
影响因子:3.532
ISSN:1541-6933
研究方向:医学-临床神经学
影响因子:19.334
ISSN:1466-609X
研究方向:医学-危重病医学
影响因子:2.799
ISSN:0210-5691
研究方向:CRITICAL CARE MEDICINE-
影响因子:3.879
ISSN:0749-0704
研究方向:医学-危重病医学
影响因子:9.296
ISSN:0090-3493
研究方向:医学-危重病医学
影响因子:41.787
ISSN:0342-4642
研究方向:医学-危重病医学
影响因子:4.298
ISSN:0883-9441
研究方向:医学-危重病医学
影响因子:10.318
ISSN:2110-5820
研究方向:CRITICAL CARE MEDICINE-
影响因子:5.692
ISSN:1441-2772
研究方向:CRITICAL CARE MEDICINE-
发表一篇学和医学成像类SCI论文
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