Journal of the Renin-Angiotensin-Aldosterone System最新文献

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Evaluation of the diagnostic value of the renal resistive index as a marker of the subclinical development of cardiorenal syndrome in MMVD dogs. 肾阻力指数作为MMVD犬心肾综合征亚临床发展标志物的诊断价值评价
IF 2.9 4区 医学
Journal of the Renin-Angiotensin-Aldosterone System Pub Date : 2021-01-01 DOI: 10.1177/1470320321995082
Barbara Szczepankiewicz, Urszula Pasławska, Natalia Siwińska, Krzysztof Plens, Robert Pasławski
{"title":"Evaluation of the diagnostic value of the renal resistive index as a marker of the subclinical development of cardiorenal syndrome in MMVD dogs.","authors":"Barbara Szczepankiewicz,&nbsp;Urszula Pasławska,&nbsp;Natalia Siwińska,&nbsp;Krzysztof Plens,&nbsp;Robert Pasławski","doi":"10.1177/1470320321995082","DOIUrl":"https://doi.org/10.1177/1470320321995082","url":null,"abstract":"<p><strong>Introduction: </strong>Myxomatous mitral valve disease (MMVD) in dogs inevitably causes renal dysfunction. These interactions are known as the cardiorenal syndrome (CRS). The main aims of the study were to evaluate whether renal resistive index (RRI) may be useful as a non-invasive marker in subclinical stage of kidney injury in dogs with MMVD and to compare RRI with SDMA and Cyst C.</p><p><strong>Methods: </strong>Forty-four dogs were divided into two groups: control-15 healthy dogs and the heart group-29 dogs with MMVD (ACVIM class Cc). Study protocol included: anamnesis, clinical examination, electrocardiography, echocardiography, chest radiography, abdominal ultrasonography with measurements of the renal resistive index (RRI), urine, and blood analysis.</p><p><strong>Results: </strong>The RRI in the heart group was significantly higher 0.725 ± 0.035 versus control group 0.665 ± 0.028 (<i>p</i> < 0.00085). The RRI cut-off point in dogs with stable chronic heart failure (CHF) under 8 years is 0.775, in older 0.64. RRI was similar in MMVD dogs treated with ACE-I + furosemide and dogs treated ACE-I + torasemide + pimobendan + spironolactone. There was no correlation between RRI and SDMA or Cyst C.</p><p><strong>Conclusion: </strong>RRI is more sensitive than creatinine, SDMA and Cyst C to reveal kidney injury in MMVD dogs class Cc younger than 8 years.</p>","PeriodicalId":17330,"journal":{"name":"Journal of the Renin-Angiotensin-Aldosterone System","volume":"22 1","pages":"1470320321995082"},"PeriodicalIF":2.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1470320321995082","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25497721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Cardiovascular events and all-cause mortality in surgically or medically treated primary aldosteronism: A Meta-analysis. 手术或药物治疗原发性醛固酮增多症的心血管事件和全因死亡率:一项荟萃分析
IF 2.9 4区 医学
Journal of the Renin-Angiotensin-Aldosterone System Pub Date : 2021-01-01 DOI: 10.1177/14703203211003781
Ying Jing, Kangla Liao, Ruolin Li, Shumin Yang, Ying Song, Wenwen He, Kanran Wang, Jun Yang, Qifu Li, Jinbo Hu
{"title":"Cardiovascular events and all-cause mortality in surgically or medically treated primary aldosteronism: A Meta-analysis.","authors":"Ying Jing,&nbsp;Kangla Liao,&nbsp;Ruolin Li,&nbsp;Shumin Yang,&nbsp;Ying Song,&nbsp;Wenwen He,&nbsp;Kanran Wang,&nbsp;Jun Yang,&nbsp;Qifu Li,&nbsp;Jinbo Hu","doi":"10.1177/14703203211003781","DOIUrl":"https://doi.org/10.1177/14703203211003781","url":null,"abstract":"<p><strong>Objectives: </strong>To compare the effect of surgical or medical treatment on the risk of cardiovascular diseases (CVD) and all-cause mortality in patients with established primary aldosteronism (PA).</p><p><strong>Methods: </strong>We searched PUBMED, MEDLINE and Cochrane Library for the meta-analysis. We included patients who were diagnosed with PA following guideline-supported protocols and received surgery or mineralocorticoid receptor antagonist (MRA)-based medical treatment, and age-sex matched patients with treated essential hypertension (EH). Primary endpoints were CVD incidence and all-cause mortality.</p><p><strong>Results: </strong>Compared with EH, patients with treated PA had a higher risk of CVD [odds ratio (OR) 1.79; 95% confidence interval (CI) 1.39-2.31]. This elevated risk was only observed in patients with medically treated PA [OR 2.11; 95%CI 1.88-2.38] but not in those with surgically treated PA. The risk of all-cause mortality was significantly lower in patients with treated PA [OR 0.86; 95% CI 0.77-0.95] compared to EH. The reduced risk was only observed in patients with surgically treated PA [OR 0.47; 95% CI 0.34-0.66], but not in those with medically treated PA.</p><p><strong>Conclusions: </strong>Patients with medically treated PA have a higher risk of CVD compared to patients with EH. Surgical treatment of PA reduces the risk of CVD and all-cause mortality in patients with PA.</p>","PeriodicalId":17330,"journal":{"name":"Journal of the Renin-Angiotensin-Aldosterone System","volume":"22 1","pages":"14703203211003781"},"PeriodicalIF":2.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/14703203211003781","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25505456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
The controversy of using angiotensin-converting enzyme inhibitors and angiotensin receptor blockers in COVID-19 patients. 在 COVID-19 患者中使用血管紧张素转换酶抑制剂和血管紧张素受体阻滞剂的争议。
IF 2.1 4区 医学
Journal of the Renin-Angiotensin-Aldosterone System Pub Date : 2021-01-01 DOI: 10.1177/1470320320987118
Amer Harky, Cheryl Yan Ting Chor, Henry Nixon, Milad Jeilani
{"title":"The controversy of using angiotensin-converting enzyme inhibitors and angiotensin receptor blockers in COVID-19 patients.","authors":"Amer Harky, Cheryl Yan Ting Chor, Henry Nixon, Milad Jeilani","doi":"10.1177/1470320320987118","DOIUrl":"10.1177/1470320320987118","url":null,"abstract":"","PeriodicalId":17330,"journal":{"name":"Journal of the Renin-Angiotensin-Aldosterone System","volume":"22 1","pages":"1470320320987118"},"PeriodicalIF":2.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/ec/ab/10.1177_1470320320987118.PMC7797594.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38792757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
PM2.5 inducing myocardial fibrosis mediated by Ang II/ERK1/2/TGF-β1 signaling pathway in mice model. 在小鼠模型中,PM2.5 通过 Ang II/ERK1/2/TGF-β1 信号通路诱导心肌纤维化。
IF 2.9 4区 医学
Journal of the Renin-Angiotensin-Aldosterone System Pub Date : 2021-01-01 DOI: 10.1177/14703203211003786
Xiwen Zang, Jun Zhao, Chengzhi Lu
{"title":"PM2.5 inducing myocardial fibrosis mediated by Ang II/ERK1/2/TGF-β<sub>1</sub> signaling pathway in mice model.","authors":"Xiwen Zang, Jun Zhao, Chengzhi Lu","doi":"10.1177/14703203211003786","DOIUrl":"10.1177/14703203211003786","url":null,"abstract":"<p><strong>Objects: </strong>To discuss the influence of PM2.5 on myocardial fibrosis and related mechanism.</p><p><strong>Methods: </strong>PM2.5 particles were prepared into different concentrations of solution to drip into the mice's trachea twice each week. The mice were divided into five groups, Blank control group (C group), NS control group (J group), high dose group (G group, 10 mg/kg), medium dose group (Z group, 5 mg/kg), and 1ow dose group (D group, 2.5 mg/kg). After 6 weeks, the myocardial fibrosis was observed by HE and Masson staining. The expression of Ang II, ERK1/2, and TGF-β<sub>1</sub> was examined by Western Blotting (WB) and Real time PCR (RT-PCR).</p><p><strong>Results: </strong>The higher dose PM2.5 was administrated, the worse the myocardial fibrosis was in PM2.5 groups. The expression of Ang II, ERK1/2, and TGF-β<sub>1</sub> was increased in higher dose groups in protein and mRNA level.</p><p><strong>Conclusion: </strong>1. PM2.5 induced the cardiac fibrosis. 2. PM2.5 dripped into trachea in mice model activated the expression of Ang II, ERK1/2, and TGF-β<sub>1</sub>. The activation of renin-angiotensin system (RAS) was suggested to participate in the cardiac fibrosis induced by PM2.5.</p>","PeriodicalId":17330,"journal":{"name":"Journal of the Renin-Angiotensin-Aldosterone System","volume":"22 1","pages":"14703203211003786"},"PeriodicalIF":2.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/0d/f3/10.1177_14703203211003786.PMC7983242.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25494203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Angiotensin II Induces Differentiation of Human Neuroblastoma Cells by Increasing MAP2 and ROS Levels. 血管紧张素II通过增加MAP2和ROS水平诱导人神经母细胞瘤细胞分化
IF 2.9 4区 医学
Journal of the Renin-Angiotensin-Aldosterone System Pub Date : 2021-01-01 DOI: 10.1155/2021/6191417
Bryan Jael Collazo, Dariana Morales-Vázquez, Jaylene Álvarez-Del Valle, Javier E Sierra-Pagan, Juan Carlos Medina, Jarold Méndez-Álvarez, Yamil Gerena
{"title":"Angiotensin II Induces Differentiation of Human Neuroblastoma Cells by Increasing MAP2 and ROS Levels.","authors":"Bryan Jael Collazo,&nbsp;Dariana Morales-Vázquez,&nbsp;Jaylene Álvarez-Del Valle,&nbsp;Javier E Sierra-Pagan,&nbsp;Juan Carlos Medina,&nbsp;Jarold Méndez-Álvarez,&nbsp;Yamil Gerena","doi":"10.1155/2021/6191417","DOIUrl":"https://doi.org/10.1155/2021/6191417","url":null,"abstract":"<p><strong>Introduction: </strong>The roles of angiotensin II (Ang II) in the brain are still under investigation. In this study, we investigated if Ang II influences differentiation of human neuroblastoma cells with simultaneous activation of NADPH oxidase and reactive oxygen species (ROS). Moreover, we investigated the Ang II receptor type involved during differentiation.</p><p><strong>Methods: </strong>Human neuroblastoma cells (SH-SY5Y; 5 × 10<sup>5</sup> cells) were exposed to Ang II (600 nM) for 24 h. Differentiation was monitored by measuring MAP2 and NF-H levels. Cell size and ROS were analyzed by flow cytometry, and NADPH oxidase activation was assayed using apocynin (500 <i>μ</i>M). Ang II receptors (ATR) activation was assayed using ATR blockers or Ang II metabolism inhibitors (10<sup>-7</sup> M).</p><p><strong>Results: </strong>(1) Cell size decreased significantly in Ang II-treated cells; (2) MAP2 and ROS increased significantly in Ang II-treated cells with no changes in viability; (3) MAP2 and ROS decreased significantly in cells incubated with Ang II plus apocynin. (4) A significant decrease in MAP2 was observed in cells exposed to Ang II plus PD123.319 (AT2R blocker).</p><p><strong>Conclusion: </strong>Our findings suggest that Ang II influences differentiation of SH-SY5Y by increasing MAP2 through the AT2R. The increase in MAP2 and ROS were also mediated through NADPH oxidase with no cell death.</p>","PeriodicalId":17330,"journal":{"name":"Journal of the Renin-Angiotensin-Aldosterone System","volume":"2021 ","pages":"6191417"},"PeriodicalIF":2.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8265025/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9161377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Association between angiotensin converting enzyme gene polymorphism and essential hypertension: A systematic review and meta-analysis. 血管紧张素转换酶基因多态性与原发性高血压的关系:一项系统综述和荟萃分析。
IF 2.9 4区 医学
Journal of the Renin-Angiotensin-Aldosterone System Pub Date : 2021-01-01 DOI: 10.1177/1470320321995074
Mingyu Liu, Jian Yi, Wenwen Tang
{"title":"Association between angiotensin converting enzyme gene polymorphism and essential hypertension: A systematic review and meta-analysis.","authors":"Mingyu Liu,&nbsp;Jian Yi,&nbsp;Wenwen Tang","doi":"10.1177/1470320321995074","DOIUrl":"https://doi.org/10.1177/1470320321995074","url":null,"abstract":"<p><strong>Background: </strong>The current meta-analytic study explored the relation between ACE gene insertion/deletion (I/D), and the risk of EH by reviewing relevant trials so as to determine the association between Angiotensin Converting Enzyme (ACE) gene polymorphism and essential hypertension (EH) susceptibility.</p><p><strong>Methods: </strong>Relevant studies published before May 2019 were collected from the PubMed, Cochrane, Embase, CNKI, VANFUN, and VIP databases.</p><p><strong>Results: </strong>Fifty-seven studies involving a total of 32,862 patients were included. These studies found that ACE gene D allele was associated with higher EH susceptibility in allelic model, homozygote model, dominant model, and regressive model, and that Asian population with ACE gene D allele showed a higher EH susceptibility in all these models. Moreover, ACE gene D allele was found closely related to a higher EH susceptibility in the subgroups of HWE, NO HWE, Caucasian population, and Mixed population, with the majority being males in allelic model, homozygote model, and regressive model and the majority being females in allelic model.</p><p><strong>Conclusion: </strong>ACE gene D allele is associated with an overall higher EH susceptibility, which is confirmed in the subgroup analysis of Asian population, HWE, NO HWE, Caucasian population, and Mixed population.</p>","PeriodicalId":17330,"journal":{"name":"Journal of the Renin-Angiotensin-Aldosterone System","volume":"22 1","pages":"1470320321995074"},"PeriodicalIF":2.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1470320321995074","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25485429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
The predictive value of brain natriuretic peptide or N-terminal pro-brain natriuretic peptide for weaning outcome in mechanical ventilation patients: Evidence from SROC. 脑钠肽或n端前脑钠肽对机械通气患者脱机结局的预测价值:来自SROC的证据。
IF 2.9 4区 医学
Journal of the Renin-Angiotensin-Aldosterone System Pub Date : 2021-01-01 DOI: 10.1177/1470320321999497
Jian Liu, Chuan-Jiang Wang, Jun-Huai Ran, Shi-Hui Lin, Dan Deng, Yu Ma, Fang Xu
{"title":"The predictive value of brain natriuretic peptide or N-terminal pro-brain natriuretic peptide for weaning outcome in mechanical ventilation patients: Evidence from SROC.","authors":"Jian Liu,&nbsp;Chuan-Jiang Wang,&nbsp;Jun-Huai Ran,&nbsp;Shi-Hui Lin,&nbsp;Dan Deng,&nbsp;Yu Ma,&nbsp;Fang Xu","doi":"10.1177/1470320321999497","DOIUrl":"https://doi.org/10.1177/1470320321999497","url":null,"abstract":"<p><strong>Objective: </strong>Mechanical ventilation is an important treatment for critically ill patients. Physicians generally perform a spontaneous breathing trial (SBT) to determine whether the patients can be weaned from mechanical ventilation, but almost 17% of the patients who pass the SBT still require respiratory support. Cardiac dysfunction is an important cause of weaning failure. The use of brain natriuretic peptide or N-terminal pro-BNP is a simple method to assess cardiac function. We performed a systematic review of investigations of brain natriuretic peptide or N-terminal pro-BNP as predictors of weaning from mechanical ventilation.</p><p><strong>Data sources: </strong>PubMed (1950 to December 2020), Cochrane, and Embase (1974 to December 2020), and some Chinese databases for additional articles (China Biology Medicine (CBM), China Science and Technology Journal Database (CSTJ), and Wanfang Data and China National Knowledge Infrastructure (CNKI)).</p><p><strong>Study selection: </strong>We systematically searched observation studies investigating the predictive value of brain natriuretic peptide or N-terminal pro-brain natriuretic peptide in weaning outcome of patients with mechanical ventilation.</p><p><strong>Data extraction: </strong>Two independent reviewers extracted data. The differences are resolved through consultation.</p><p><strong>Data synthesis: </strong>We included 18 articles with 1416 patients and extracted six index tests with pooled sensitivity and specificity for each index test. For the BNP change rate predicting weaning success, the pooled sensitivity was 89% (83%-94%) and the pooled specificity was 82% (72%-89%) with the highest pooled AUC of 0.9511.</p><p><strong>Conclusions: </strong>The brain natriuretic peptide change rate is a reliable predictor of weaning outcome from mechanical ventilation.</p>","PeriodicalId":17330,"journal":{"name":"Journal of the Renin-Angiotensin-Aldosterone System","volume":"22 1","pages":"1470320321999497"},"PeriodicalIF":2.9,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1470320321999497","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25442928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
The role of renin-angiotensin system in patients with left ventricular assist devices. 肾素-血管紧张素系统在左心室辅助装置患者中的作用。
IF 2.9 4区 医学
Journal of the Renin-Angiotensin-Aldosterone System Pub Date : 2020-10-01 DOI: 10.1177/1470320320966445
Alexandros Briasoulis, Ernesto Ruiz Duque, Dimitrios Mouselimis, Anastasios Tsarouchas, Constantinos Bakogiannis, Paulino Alvarez
{"title":"The role of renin-angiotensin system in patients with left ventricular assist devices.","authors":"Alexandros Briasoulis,&nbsp;Ernesto Ruiz Duque,&nbsp;Dimitrios Mouselimis,&nbsp;Anastasios Tsarouchas,&nbsp;Constantinos Bakogiannis,&nbsp;Paulino Alvarez","doi":"10.1177/1470320320966445","DOIUrl":"https://doi.org/10.1177/1470320320966445","url":null,"abstract":"<p><p>End-stage heart failure is a condition in which the up-regulation of the systemic and local renin-angiotensin-aldosterone system (RAAS) leads to end-organ damage and is largely irreversible despite optimal medication. Left ventricular assist devices (LVADs) can downregulate RAAS activation by unloading the left ventricle and increasing the cardiac output translating into a better end-organ perfusion improving survival. However, the absence of pulsatility brought about by continuous-flow devices may variably trigger RAAS activation depending on left ventricular (LV) intrinsic contractility, the design and speed of the pump device. Moreover, the concept of myocardial recovery is being tested in clinical trials and in this setting LVAD support combined with intense RAAS inhibition can promote recovery and ensure maintenance of LV function after explantation. Blood pressure control on LVAD recipients is key to avoiding complications as gastrointestinal bleeding, pump thrombosis and stroke. Furthermore, emerging data highlight the role of RAAS antagonists as prevention of arteriovenous malformations that lead to gastrointestinal bleeds. Future studies should focus on the role of angiotensin receptor inhibitors in preventing myocardial fibrosis in patients with LVADs and examine in greater details the target blood pressure for these patients.</p>","PeriodicalId":17330,"journal":{"name":"Journal of the Renin-Angiotensin-Aldosterone System","volume":"21 4","pages":"1470320320966445"},"PeriodicalIF":2.9,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1470320320966445","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38513568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Lifestyle and severe SARS-CoV-2 infections: Does the individual metabolic burden determines the outcome? 生活方式与严重的 SARS-CoV-2 感染:个人的代谢负担会决定结果吗?
IF 2.9 4区 医学
Journal of the Renin-Angiotensin-Aldosterone System Pub Date : 2020-10-01 DOI: 10.1177/1470320320963929
Birgit Markus, Julian Kreutz, Bernhard Schieffer
{"title":"Lifestyle and severe SARS-CoV-2 infections: Does the individual metabolic burden determines the outcome?","authors":"Birgit Markus, Julian Kreutz, Bernhard Schieffer","doi":"10.1177/1470320320963929","DOIUrl":"10.1177/1470320320963929","url":null,"abstract":"","PeriodicalId":17330,"journal":{"name":"Journal of the Renin-Angiotensin-Aldosterone System","volume":"21 4","pages":"1470320320963929"},"PeriodicalIF":2.9,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/b5/f7/10.1177_1470320320963929.PMC7550949.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38577054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Endothelial prostaglandin D2 opposes angiotensin II contractions in mouse isolated perfused intracerebral microarterioles. 内皮前列腺素D2在小鼠离体脑内微动脉灌注中对抗血管紧张素II收缩。
IF 2.9 4区 医学
Journal of the Renin-Angiotensin-Aldosterone System Pub Date : 2020-10-01 DOI: 10.1177/1470320320966177
L Li, E Y Lai, X Cao, W J Welch, C S Wilcox
{"title":"Endothelial prostaglandin D<sub>2</sub> opposes angiotensin II contractions in mouse isolated perfused intracerebral microarterioles.","authors":"L Li,&nbsp;E Y Lai,&nbsp;X Cao,&nbsp;W J Welch,&nbsp;C S Wilcox","doi":"10.1177/1470320320966177","DOIUrl":"https://doi.org/10.1177/1470320320966177","url":null,"abstract":"<p><strong>Hypothesis: </strong>A lack of contraction of cerebral microarterioles to Ang II (\"resilience\") depends on cyclooxygenase (COX) and lipocalin type prostaglandin D sythase L-PGDS producing PGD<sub>2</sub> that activates prostaglandin D type 1 receptors (DP1Rs) and nitric oxide synthase (NOS).</p><p><strong>Materials & methods: </strong>Contractions were assessed in isolated, perfused vessels and NO by fluorescence microscopy.</p><p><strong>Results: </strong>The mRNAs of penetrating intraparenchymal cerebral microarterioles versus renal afferent arterioles were >3000-fold greater for L-PGDS and DP1R and 5-fold for NOS III and COX 2. Larger cerebral arteries contracted with Ang II. However, cerebral microarterioles were entirely unresponsive but contracted with endothelin 1 and perfusion pressure. Ang II contractions were evoked in cerebral microarterioles from COX1 -/- mice or after blockade of COX2, L-PGDS or NOS and in deendothelialized vessels but effects of deendothelialization were lost during COX blockade. NO generation with Ang II depended on COX and also was increased by DP1R activation.</p><p><strong>Conclusion: </strong>The resilience of cerebral arterioles to Ang II contractions is specific for intraparenchymal microarterioles and depends on endothelial COX1 and two products that are metabolized by L-PGDS to generate PGD<sub>2</sub> that signals via DP1Rs and NO.</p>","PeriodicalId":17330,"journal":{"name":"Journal of the Renin-Angiotensin-Aldosterone System","volume":"21 4","pages":"1470320320966177"},"PeriodicalIF":2.9,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/1470320320966177","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38527141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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