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Abstract:
AIMS:Increased activity of calpain-1 and matrix metalloproteinase (MMP)-2 was observed in different models of arterial hypertension and contribute to thicken the left ventricle (LV) walls and to hypertrophy cardiac myocytes. MMP-2 activity may be regulated by calpain-1 via bioactive molecules activation such as transforming growth factor (TGF)-β in cardiovascular diseases. This study analyzed whether calpain-1 causes cardiac hypertrophy and dysfunction by modulating the expression and activity of MMP-2 in renovascular hypertension. MAIN METHODS:Male Wistar rats were submitted to two kidneys, one clip (2K1C) model of hypertension or sham surgery and were treated with verapamil (VRP, 8 mg/kg/bid) by gavage from the second to tenth week post-surgery. Systolic blood pressure (SBP) was weekly assessed by tail-cuff plethysmography and morphological and functional parameters of LV were analyzed by echocardiography. MMP-2 activity was analyzed by in situ and gelatin zymography, while calpain-1 activity by caseinolytic assay. MMP-2, calpain-1, TGF-β and MMP-14/TIMP-2 levels were identified in the LV by western blots. Fluorescence assays were performed to evaluate oxidative stress, MMP-2 and calpain-1 levels. KEY FINDINGS:SBP increased in 2K1C rats and was unaltered by VRP. However, VRP notably ameliorated hypertension-induced increase in LV thickness. VRP decreased hypertension-induced enhances in calpain-1 and MMP-2 activities, oxidative stress and mature TGF-β levels. Treatment with VRP also decreased the accentuated MMP-14/TIMP-2 levels in 2K1C. SIGNIFICANCE:Treatment with VRP decreases calpain-1 and MMP-2 activities and also reduces TGF-β and MMP-14/TIMP-2 levels in the LV of hypertensive rats, thus contributing to ameliorate cardiac hypertrophy.
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最新影响因子:6.78 | 期刊ISSN:0024-3205 | CiteScore:3.17 |
出版周期:Weekly | 是否OA:YES | 出版年份:1973 |
期刊官方网址:http://www.elsevier.com/wps/find/journaldescription.cws_home/525477/description
期刊投稿地址:http://ees.elsevier.com/lfs/
自引率:2.00% | 研究方向:医学-药学 |
出版地区:ENGLAND |
SCI期刊coverage:Science Citation Index Expanded(科学引文索引扩展)
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Life Sciences is an international weekly journal publishing reports on research in biomedical areas. Articles are encouraged that emphasize the molecular, cellular and functional aspects of Cardiovascular & Autonomic Mechanisms; Drug Metabolism; Endocrinology; Growth Factors and Neoplasia; Immunology; Neuroscience and Toxicology. The Journal publishes original research rapidly. Although full-length manuscripts are favored, shorter submissions are also considered. These shorter articles must be of the same high quality as full-length articles, and should contain information from topical and fast-moving fields in order to merit more rapid communication. Mini-reviews on topics of wide interest to investigators in the life sciences are also published. All articles are rigorously reviewed. The Journal favors publication of papers where modern scientific technologies are used to explain molecular, cellular and physiological mechanisms. Articles that merely report observations are rarely accepted. Recommendations from the Declaration of Helsinki or NIH guidelines for care and use of laboratory animals must be adhered to. Articles should be written at a level accessible to readers who are non-specialists in the topic of the article themselves, but who are interested in the research.
《生命科学》是一份国际周刊,出版生物医学领域的研究报告。鼓励强调心血管和自主机制的分子、细胞和功能方面的文章;药物代谢;内分泌学;生长因子与肿瘤;免疫学;神经学和毒理学。该杂志迅速发表原创研究。虽然全篇幅的稿件更受欢迎,但也可以考虑提交较短的稿件。这些较短的文章必须与完整的文章具有相同的高质量,并且应该包含来自主题和快速移动领域的信息,以便进行更快速的交流。对生命科学研究人员广泛感兴趣的主题也发表了小型评论。所有文章都经过严格审查。该杂志倾向于发表现代科学技术用于解释分子、细胞和生理机制的论文。仅仅报告观察结果的文章很少被接受。必须遵守《赫尔辛基宣言》或国家卫生研究院关于护理和使用实验室动物的指导方针的建议。文章应该写在对文章主题本身不是专家,但对研究感兴趣的读者能够理解的水平上。
大类(学科) | 小类(学科) | 学科排名 |
医学 |
MEDICINE, RESEARCH & EXPERIMENTAL (医学:研究与实验) 3区 PHARMACOLOGY & PHARMACY (药学) 3区 |
53/133 78/261 |
年度总发文量 | 年度论文发表量 | 年度综述发表量 |
337 | 287 | 50 |
引文计数(2018)
文献(2015-2017)
4020次引用
1267篇文献
序号 | 类别 | 排名 | 百分位 |
1 |
大类(学科):Biochemistry, Genetics and Molecular Biology
小类(学科):General Biochemistry, Genetics and Molecular Biology
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#41/187
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2 |
大类(学科):Pharmacology, Toxicology and Pharmaceutics
小类(学科):General Pharmacology, Toxicology and Pharmaceutics
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#4/68
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研究方向:生命科学 生物物理、生物化学与分子生物学 生物化学
审稿时间: 1个月内
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研究方向:肝脏 缺血再灌注 氢气
审稿时间: 2个月内
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研究方向:生命科学 食品科学 食品科学基础
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研究方向:炎症 内皮功能 血管
审稿时间: 3个月内 接受率: 中等(50%命中)
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审稿时间: 3个月内 接受率: 中等(50%命中)
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接受率: 中等(50%命中)
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研究方向:神经 衰老 阿尔兹海默症
审稿时间: 3个月内 接受率: 一般容易(75%命中)
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研究方向:生命科学 微生物学 微生物生理与生物化学
审稿时间: 4个月内
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影响因子:2.995
ISSN:0028-3940
研究方向:医学-核医学
影响因子:2.324
ISSN:1051-2284
研究方向:医学-核医学
影响因子:3.156
ISSN:1869-1439
研究方向:CLINICAL NEUROLOGY-RADIOLOGY, NUCLEAR MEDICINE & M
影响因子:4.6
ISSN:0150-9861
研究方向:医学-核医学
影响因子:1.764
ISSN:1591-0199
研究方向:CLINICAL NEUROLOGY-RADIOLOGY, NUCLEAR MEDICINE & M
影响因子:4.966
ISSN:0195-6108
研究方向:医学-核医学
影响因子:3.005
ISSN:0301-0449
研究方向:医学-核医学
影响因子:2.396
ISSN:1793-5458
研究方向:OPTICS-RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGI
影响因子:3.632
ISSN:1084-9785
研究方向:医学-核医学
发表一篇学和医学成像类SCI论文
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