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

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Exploring the Impact of ACE Inhibition in Immunity and Disease. 探索ACE抑制对免疫和疾病的影响。
IF 2.9 4区 医学
Journal of the Renin-Angiotensin-Aldosterone System Pub Date : 2022-08-04 eCollection Date: 2022-01-01 DOI: 10.1155/2022/9028969
Delia Oosthuizen, Edward D Sturrock
{"title":"Exploring the Impact of ACE Inhibition in Immunity and Disease.","authors":"Delia Oosthuizen,&nbsp;Edward D Sturrock","doi":"10.1155/2022/9028969","DOIUrl":"https://doi.org/10.1155/2022/9028969","url":null,"abstract":"<p><p>Angiotensin-converting enzyme (ACE) is a zinc-dependent dipeptidyl carboxypeptidase and is crucial in the renin-angiotensin-aldosterone system (RAAS) but also implicated in immune regulation. Intrinsic ACE has been detected in several immune cell populations, including macrophages and neutrophils, where its overexpression results in enhanced bactericidal and antitumour responses, independent of angiotensin II. With roles in antigen presentation and inflammation, the impact of ACE inhibitors must be explored to understand how ACE inhibition may impact our ability to clear infections or malignancy, particularly in the wake of the coronavirus (SARS-CoV2) pandemic and as antibiotic resistance grows. Patients using ACE inhibitors may be more at risk of postsurgical complications as ACE inhibition in human neutrophils results in decreased ROS and phagocytosis whilst angiotensin receptor blockers (ARBs) have no effect. In contrast, ACE is also elevated in certain autoimmune diseases such as rheumatoid arthritis and lupus, and its inhibition benefits patient outcome where inflammatory immune cells are overactive. Although the ACE autoimmune landscape is changing, some studies have conflicting results and require further input. This review seeks to highlight the need for further research covering ACE inhibitor therapeutics and their potential role in improving autoimmune conditions, cancer, or how they may contribute to immunocompromise during infection and neurodegenerative diseases. Understanding ACE inhibition in immune cells is a developing field that will alter how ACE inhibitors are designed in future and aid in developing therapeutic interventions.</p>","PeriodicalId":17330,"journal":{"name":"Journal of the Renin-Angiotensin-Aldosterone System","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2022-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9371878/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33437719","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: 5
Estradiol Supplement or Induced Hypertension May Attenuate the Angiotensin II Type 1 Receptor Antagonist-Promoted Renal Blood Flow Response to Graded Angiotensin II Administration in Ovariectomized Rats. 在去卵巢大鼠中,补充雌二醇或诱导高血压可能会减弱血管紧张素II型受体拮抗剂促进肾血流对血管紧张素II分级给药的反应。
IF 2.9 4区 医学
Journal of the Renin-Angiotensin-Aldosterone System Pub Date : 2022-07-01 eCollection Date: 2022-01-01 DOI: 10.1155/2022/3223008
Samira Choopani, Mehdi Nematbakhsh
{"title":"Estradiol Supplement or Induced Hypertension May Attenuate the Angiotensin II Type 1 Receptor Antagonist-Promoted Renal Blood Flow Response to Graded Angiotensin II Administration in Ovariectomized Rats.","authors":"Samira Choopani,&nbsp;Mehdi Nematbakhsh","doi":"10.1155/2022/3223008","DOIUrl":"https://doi.org/10.1155/2022/3223008","url":null,"abstract":"<p><strong>Backgrounds: </strong>Estrogen replacement therapy (ERT) and hypertension may influence females' renin-angiotensin system (RAS) and its components. The angiotensin II (Ang II) type 1 receptor (AT1R) antagonist (losartan) may promote renal blood flow (RBF), and it is widely used in the clinic to control hypertension. The main objective of this study was the effects of estradiol or induced hypertension on RBF response to Ang II in losartan-treated ovariectomized (OVX) rats.</p><p><strong>Methods: </strong>Two groups of OVX rats were treated with placebo (group 1) and estradiol (group 2) for period of four weeks, and another group of OVX rats was subjected to induce hypertension by two-kidney one clip (2K1C) model (group 3). All the groups were subjected to the surgical procedure under anesthesia, and AT1R was blocked by losartan. RBF and renal vascular resistance (RVR) responses to Ang II administration were determined and compared.</p><p><strong>Results: </strong>Mean arterial (MAP) and renal perfusion (RPP) pressures in group 3 and uterus weight (UT) in group 2 were significantly more than other groups (<i>P</i> < 0.05). Ang II infusion resulted in dose-related percentage change increase in RBF and decrease in RVR. However, these responses in the OVX-estradiol and OVX-hypertensive rats were significantly lower than in the OVX-control group (<i>P</i> < 0.05). For instance, at the dose of 1000 ng/kg/min of Ang II administration, the percentage change of RBF was 45.1 ± 10.4%, 17.9 ± 2.3%, and 16.7 ± 4.7% in the groups of 1 to 3, respectively.</p><p><strong>Conclusion: </strong>Losartan prescription in some conditions such as hypertension or ERT could worsen RBF and RVR responses to Ang II.</p>","PeriodicalId":17330,"journal":{"name":"Journal of the Renin-Angiotensin-Aldosterone System","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9270140/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40621528","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
The Effect of the Angiotensin-Converting Enzyme Inhibitor on Bone Health in Castrated Hypertensive Rats Is Mediated via the Kinin-Kallikrein System. 血管紧张素转换酶抑制剂对去势高血压大鼠骨健康的影响是通过激肽-钾likrein系统介导的。
IF 2.9 4区 医学
Journal of the Renin-Angiotensin-Aldosterone System Pub Date : 2022-06-14 eCollection Date: 2022-01-01 DOI: 10.1155/2022/9067167
Na Zhang, Yanan Huo, Chen Yao, Jie Sun, Yafeng Zhang
{"title":"The Effect of the Angiotensin-Converting Enzyme Inhibitor on Bone Health in Castrated Hypertensive Rats Is Mediated via the Kinin-Kallikrein System.","authors":"Na Zhang,&nbsp;Yanan Huo,&nbsp;Chen Yao,&nbsp;Jie Sun,&nbsp;Yafeng Zhang","doi":"10.1155/2022/9067167","DOIUrl":"https://doi.org/10.1155/2022/9067167","url":null,"abstract":"<p><strong>Background: </strong>In previous studies, angiotensin-converting enzyme inhibitor (ACEI) use was associated with increased bone loss, while an angiotensin II type I receptor blocker had no effect on bone loss in elder subjects, which suggested that the effect of ACEI on bone loss was not mediated through the classical renin-angiotensin system. In this study, we set to investigate whether the effect of ACEI on bone deterioration was mediated via the kinin-kallikrein system.</p><p><strong>Methods: </strong>Six-month-old male and female spontaneously hypertensive rats were used. The effect of captopril on blood pressure, serum Ang II, and bradykinin concentration was measured in intact rats. Ovariectomy and orchidectomy were performed to establish an osteoporosis model in female and male rats, respectively. Captopril and the bradykinin receptor blocker icatibant (HOE140) were administered after operation for 12 weeks. Serum Ang II and bradykinin concentration, bone turnover markers, bone mineral density (BMD), and bone microarchitecture were evaluated. Femur samples were subjected to a mechanical test.</p><p><strong>Results: </strong>Captopril decreased blood pressure and serum Ang II concentration and increased serum bradykinin concentration in intact rats (<i>P</i> < 0.05). After castration, captopril decreased serum Ang II concentration (<i>P</i> < 0.05); in female rats, icatibant increased serum Ang II concentration (<i>P</i> < 0.05). Captopril increased serum bradykinin concentration (<i>P</i> < 0.05); in male rats, icatibant decreased serum bradykinin concentration (<i>P</i> < 0.05). Captopril increased the rat urine deoxypyridinoline-creatinine ratio (DPD/Cr) and serum osteocalcin concentration (<i>P</i> < 0.05). Icatibant decreased urine DPD/Cr in male rats (<i>P</i> < 0.05) and increased osteocalcin concentration in female rats (<i>P</i> < 0.05). Captopril increased cancellous BMD in castrated hypertensive rats (<i>P</i> < 0.05), and icatibant further increased cancellous BMD (<i>P</i> < 0.05), which was due to the increased trabecular bone number. In mechanical testing, ACEI increased bone strength (<i>P</i> < 0.05), and icatibant further improved it (<i>P</i> < 0.05).</p><p><strong>Conclusion: </strong>ACEI decreased bone deterioration in both male and female hypertensive rats, and the bradykinin receptor blocker further decreased bone deterioration.</p>","PeriodicalId":17330,"journal":{"name":"Journal of the Renin-Angiotensin-Aldosterone System","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2022-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9213206/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40582293","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
The Race for ACE: Targeting Angiotensin-Converting Enzymes (ACE) in SARS-CoV-2 Infection ACE的竞争:在SARS-CoV-2感染中靶向血管紧张素转换酶(ACE
IF 2.9 4区 医学
Journal of the Renin-Angiotensin-Aldosterone System Pub Date : 2022-05-27 DOI: 10.1155/2022/2549063
E. Schieffer, B. Schieffer
{"title":"The Race for ACE: Targeting Angiotensin-Converting Enzymes (ACE) in SARS-CoV-2 Infection","authors":"E. Schieffer, B. Schieffer","doi":"10.1155/2022/2549063","DOIUrl":"https://doi.org/10.1155/2022/2549063","url":null,"abstract":"The SARS-CoV-2 virus is spreading around the world, and its clinical manifestation COVID-19 is challenging medical, economic, and social systems. With more and more scientific and social media reports on the COVID-19 pandemic appearing, differences in geographical presentations and clinical management occur. Since ACE2 (angiotensin-converting enzyme 2) is the gatekeeper receptor for the SARS-CoV-2 virus in the upper bronchial system, we here focus on the central role of the renin-angiotensin aldosterone system (RAAS) in the SARS-CoV-2 virus infection, the role of pharmacological RAAS inhibitors, and specific genetic aspects, i.e., single nucleotide polymorphisms (SNP) for the clinical outcome of COVID-19. We aimed to bring together clinical, epidemiological, molecular, and pathophysiological and pharmacological data/observations on cardiovascular aspects in the actual SARS-CoV-2 virus pandemic. In detail, we will report controversies about the Yin-Yan between ACE2 and ACE1 and potential implications for the treatment of hypertension, coronary artery disease, and heart failure. Here, we summarize the encouraging and dynamic global effort of multiple biomedical disciplines resulted in astonishing fight against COVID-19 targeting the renin-angiotensin-aldosterone system, yet the race for ACE just begun.","PeriodicalId":17330,"journal":{"name":"Journal of the Renin-Angiotensin-Aldosterone System","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2022-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76399249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
The Association of Serum AIM2 Level with the Prediction and Short-Term Prognosis of Coronary Artery Disease 血清AIM2水平与冠心病预测及短期预后的关系
IF 2.9 4区 医学
Journal of the Renin-Angiotensin-Aldosterone System Pub Date : 2022-05-14 DOI: 10.1155/2022/6774416
Wenkang Zhang, G. Yan, Chunyang Xu, Chengchun Tang
{"title":"The Association of Serum AIM2 Level with the Prediction and Short-Term Prognosis of Coronary Artery Disease","authors":"Wenkang Zhang, G. Yan, Chunyang Xu, Chengchun Tang","doi":"10.1155/2022/6774416","DOIUrl":"https://doi.org/10.1155/2022/6774416","url":null,"abstract":"Objective Coronary artery disease (CAD), one of the commonest cardiovascular diseases, has high morbidity and mortality. Absent in melanoma 2 (AIM2) is involved in atherosclerosis, and no clinical trials have explored the association between AIM2 and CAD. Therefore, this study was aimed at evaluating the predictive and short-term prognostic value of AIM2 for CAD. Methods 279 patients who underwent coronary angiography were enrolled in this study. The AIM2 level was detected from the serum of collected artery blood samples. The association of serum AIM2 level with the prediction and short-term prognosis of CAD was further assessed. Results The serum AIM2 level of the CAD group was significantly higher than the control group (5.5 ± 2.1 vs. 3.7 ± 1.7; p < 0.001). AIM2 was demonstrated to be the risk factor of CAD [odds ratio, 1.589; 95% confidence interval (CI), 1.346-1.876; p < 0.001]. The area under the receiver operating characteristic (ROC) curve of 0.738 showed the diagnostic value of AIM2 in CAD. Additionally, AIM2 was an independent predictor of major adverse cardiovascular events (hazard ratio, 1.453; 95% CI, 1.086-1.945; p = 0.012), and CAD patients with high AIM2 levels (>4.9 ng/mL) had a markedly lower survival rate (log-rank p = 0.040). Conclusions The serum AIM2 level > 4.9 ng/mL can predict CAD to a certain extent. AIM2 might be an independent predictor of its short-term poor prognosis.","PeriodicalId":17330,"journal":{"name":"Journal of the Renin-Angiotensin-Aldosterone System","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2022-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73602340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Cardiorenal Disease in COVID-19 Patients COVID-19患者的心肾疾病
IF 2.9 4区 医学
Journal of the Renin-Angiotensin-Aldosterone System Pub Date : 2022-03-18 DOI: 10.1155/2022/4640788
Muhtasham Sifaat, Pinak Patel, Razan Sheikh, Dawood Ghaffar, Hitesh Vaishnav, Ludmila Nahar, Sonia Rupani, Syed Quadri
{"title":"Cardiorenal Disease in COVID-19 Patients","authors":"Muhtasham Sifaat, Pinak Patel, Razan Sheikh, Dawood Ghaffar, Hitesh Vaishnav, Ludmila Nahar, Sonia Rupani, Syed Quadri","doi":"10.1155/2022/4640788","DOIUrl":"https://doi.org/10.1155/2022/4640788","url":null,"abstract":"Coronavirus disease 2019 (COVID-19) is an illness caused by a novel coronavirus called severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Mutations in the genetic coding and the variations in the spike proteins are critical for the virus's mechanism of facilitating fusion with the human host, making the disease more severe. Recent research indicates that comorbidities including diabetes, hypertension, renal disease, heart failure, and atherosclerosis play a significant role in the severity and high mortality rates of (COVID-19), suggesting that perhaps the metabolic syndrome and its components are associated with COVID-19 morbidity. Primarily, angiotensin-converting enzyme 2 (ACE2) receptor is identified as the entrance receptor of SARS-CoV-2. Increased ACE2 expression, endothelial dysfunction plays a vital role in the progression and severity of complications developed due to COVID-19. In this review, we will discuss the association and management of cardiorenal disease and COVID-19.","PeriodicalId":17330,"journal":{"name":"Journal of the Renin-Angiotensin-Aldosterone System","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2022-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75588332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Associations between AGT M235T Polymorphism and Cancer: An Updated Meta-Analysis. AGT M235T多态性与癌症之间的关系:一项最新的荟萃分析
IF 2.9 4区 医学
Journal of the Renin-Angiotensin-Aldosterone System Pub Date : 2022-03-04 eCollection Date: 2022-01-01 DOI: 10.1155/2022/7862709
Junyan Kou, Jing Huang
{"title":"Associations between AGT M235T Polymorphism and Cancer: An Updated Meta-Analysis.","authors":"Junyan Kou,&nbsp;Jing Huang","doi":"10.1155/2022/7862709","DOIUrl":"https://doi.org/10.1155/2022/7862709","url":null,"abstract":"<p><p>We assessed the relationship between AGT gene M235T polymorphism and the susceptibility to cancer by performing an updated meta-analysis. This study retrospectively searched related articles in the electronic databases. Afterwards, we determined combined odds ratios (ORs) and related 95% confidence intervals (CIs) by the fixed- or random-effects model. The present meta-analysis enrolled altogether 9 articles. On the whole, the relationship between AGT M235T polymorphism and the cancer risk was not significant among the entire population (TT vs. MM: OR = 1.28, 95%CI = 0.80 - 2.04; TM vs. MM: OR = 0.90, 95%CI = 0.53 - 1.52; recessive model: OR = 1.13, 95%CI = 0.83 - 1.52; dominant model: OR = 0.93, 95%CI = 0.55 - 1.57). Subgroup analysis by ethnicity, cancer type, and study quality for the relationship between the AGT M235T polymorphism and cancer risk showed no significant association. According to findings in the present meta-analysis, AGT M235T polymorphism may not be related to cancer susceptibility.</p>","PeriodicalId":17330,"journal":{"name":"Journal of the Renin-Angiotensin-Aldosterone System","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8916873/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40314391","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
Ocular Distribution of the Renin-Angiotensin-Aldosterone System in the Context of the SARS-CoV-2 Pandemic. SARS-CoV-2大流行背景下肾素-血管紧张素-醛固酮系统的眼部分布
IF 2.9 4区 医学
Journal of the Renin-Angiotensin-Aldosterone System Pub Date : 2022-02-03 eCollection Date: 2022-01-01 DOI: 10.1155/2022/9970922
Ali Abid, Muhammad Azaan Khan, Brendon Lee, Andrew White, Nicole Carnt, Sana Arshad, Chameen Samarawickrama
{"title":"Ocular Distribution of the Renin-Angiotensin-Aldosterone System in the Context of the SARS-CoV-2 Pandemic.","authors":"Ali Abid,&nbsp;Muhammad Azaan Khan,&nbsp;Brendon Lee,&nbsp;Andrew White,&nbsp;Nicole Carnt,&nbsp;Sana Arshad,&nbsp;Chameen Samarawickrama","doi":"10.1155/2022/9970922","DOIUrl":"https://doi.org/10.1155/2022/9970922","url":null,"abstract":"<p><p>The COVID-19 pandemic has resulted in an unprecedented impact on global health, economy, and way of life. SARS-CoV-2, the virus responsible for the disease, utilizes the ACE2 receptor found on host cells to mediate entry, replication, and infection. Numerous studies have elucidated the presence of many components of the renin-angiotensin-aldosterone system (RAAS) in the eye, including the ACE2 receptor. Considering this, and the anatomical vulnerability that the exposed ocular surface offers with its interconnectedness to the respiratory system, there is a theoretical risk of pathogen entry from the ocular route as well as the development of COVID-19-associated eye disease. Despite this, the actual epidemiological data demonstrates low ocular symptoms, possibly due to differing ACE2 receptor expression across age, ethnicity, and sex coupled with the protective properties of tears. We summarize the current literature on ocular RAAS with specific focus on the ACE2 receptor and its interplay with the SARS-CoV-2 virus.</p>","PeriodicalId":17330,"journal":{"name":"Journal of the Renin-Angiotensin-Aldosterone System","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2022-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8831072/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39929578","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
Tolvaptan Improves Contrast-Induced Acute Kidney Injury. 托伐普坦能改善造影剂诱发的急性肾损伤
IF 2.1 4区 医学
Journal of the Renin-Angiotensin-Aldosterone System Pub Date : 2022-01-30 eCollection Date: 2022-01-01 DOI: 10.1155/2022/7435292
Chunyang Xu, Xu Huang, Gaoliang Yan, Dong Wang, Meijuan Hu, Chengchun Tang
{"title":"Tolvaptan Improves Contrast-Induced Acute Kidney Injury.","authors":"Chunyang Xu, Xu Huang, Gaoliang Yan, Dong Wang, Meijuan Hu, Chengchun Tang","doi":"10.1155/2022/7435292","DOIUrl":"10.1155/2022/7435292","url":null,"abstract":"<p><strong>Objective: </strong>Contrast-induced acute kidney injury (CI-AKI) is a serious side effect of contrast media use. The purpose of this study was to investigate the role and mechanism of tolvaptan (TOL) in CI-AKI.</p><p><strong>Methods: </strong>24 Wistar male rats were randomly divided into 4 groups (<i>n</i> = 6). And a rat model of CI-AKI was established. Then, the blood and urine of rats in each group were collected to detect relevant parameters. HE staining was utilized for the observation of the pathological changes of rat kidney tissues, TUNEL assay for the detection of tubular cell apoptosis, biochemical detection for the confirmation of oxidative stress level in kidney tissues, and western blot for the test of the expression of apoptotic proteins and the Nrf2 signaling pathway-related proteins in kidney tissues.</p><p><strong>Results: </strong>TOL could significantly reduce the serum level of urea nitrogen, creatinine, and neutrophil gelatinase-associated lipocalin and decrease serum Cys-C and urine KIM-1 in CI-AKI rats. The result above meant that TOL could improve kidney injury and reduce tubular cell apoptosis in CI-AKI rats. In addition, TOL contributed to a reduction of oxidative stress level by downregulating myeloperoxidase level and increasing the activities of superoxide dismutase and glutathione peroxidase in the kidney tissue of CI-AKI rats. After the pretreatment of TOL, the expression of proapoptotic proteins cleaved-caspase 3 and BAX, as well as mitochondrial fusion proteins DRP1 and MFN2 was downregulated, while the expression of Bcl-2 and PINK1 was upregulated in the kidney tissue of CI-AKI rats. Further, TOL could activate the Nrf2 signaling pathway, and the Nrf2 inhibitor ML385 reversed the effect of TOL on CI-AKI.</p><p><strong>Conclusion: </strong>TOL can improve CI-AKI by activating the Nrf2/HO-1 signaling pathway, inhibiting oxidative stress response, and reducing tubular cell apoptosis.</p>","PeriodicalId":17330,"journal":{"name":"Journal of the Renin-Angiotensin-Aldosterone System","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2022-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8818441/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39929577","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
Role and Mechanism of the Renin-Angiotensin-Aldosterone System in the Onset and Development of Cardiorenal Syndrome. 肾素-血管紧张素-醛固酮系统在心肾综合征发生发展中的作用和机制。
IF 2.9 4区 医学
Journal of the Renin-Angiotensin-Aldosterone System Pub Date : 2022-01-24 eCollection Date: 2022-01-01 DOI: 10.1155/2022/3239057
Kexin Ma, Weifang Gao, Huazhou Xu, Wenjie Liang, Guoping Ma
{"title":"Role and Mechanism of the Renin-Angiotensin-Aldosterone System in the Onset and Development of Cardiorenal Syndrome.","authors":"Kexin Ma,&nbsp;Weifang Gao,&nbsp;Huazhou Xu,&nbsp;Wenjie Liang,&nbsp;Guoping Ma","doi":"10.1155/2022/3239057","DOIUrl":"https://doi.org/10.1155/2022/3239057","url":null,"abstract":"<p><p>Cardiorenal syndrome (CRS), a clinical syndrome involving multiple pathological mechanisms, exhibits high morbidity and mortality. According to the primary activity of the disease, CRS can be divided into cardiorenal syndrome (type I and type II), renal heart syndrome (type III and type IV), and secondary heart and kidney disease (type V). The renin-angiotensin-aldosterone system (RAAS) is an important humoral regulatory system of the body that exists widely in various tissues and organs. As a compensatory mechanism, the RAAS is typically activated to participate in the regulation of target organ function. RAAS activation plays a key role in the pathogenesis of CRS. The RAAS induces the onset and development of CRS by mediating oxidative stress, uremic toxin overload, and asymmetric dimethylarginine production. Research on the mechanism of RAAS-induced CRS can provide multiple intervention methods that are of great significance for reducing end-stage organ damage and further improving the quality of life of patients with CRS.</p>","PeriodicalId":17330,"journal":{"name":"Journal of the Renin-Angiotensin-Aldosterone System","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2022-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8803448/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39882554","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: 10
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