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Chen D, Tan Y, Wan X. Impact of Angiotensin Receptor Blockers Use on In-Hospital Mortality in Community-Acquired Pneumonia Patients with Hypertension. KIDNEY DISEASES (BASEL, SWITZERLAND) 2023; 9:424-432. [PMID: 37901713 PMCID: PMC10601901 DOI: 10.1159/000531479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 06/05/2023] [Indexed: 10/31/2023]
Abstract
Introduction This study aimed to explore the association of angiotensin receptor blockers (ARBs) use with in-hospital mortality among Chinese patients with hypertension hospitalized with community-acquired pneumonia (CAP). Methods This study was conducted from January 2014 to January 2017, and data from patients with hypertension hospitalized with CAP were analyzed retrospectively. Multivariable logistic regression and propensity score matching (PSM) were used to investigate any association. Results 1,510 patients were included in this study. The crude in-hospital mortality was significantly lower in patients with ARBs use (4.2% vs. 12.5%, p < 0.001). In the extended multivariable logistic models, the odds ratios (ORs) of ARBs use were consistently significant in all six models (OR range 0.27-0.48, p < 0.05 for all). After subgroup analysis, ARBs use remained a potentially protective factor against in-hospital mortality, and no interaction was detected. After PSM, the in-hospital mortality remained significantly lower in the ARBs use group (4.2% vs. 10.9%, p = 0.002). In the univariate analysis, using ARBs was associated with in-hospital mortality (PSM OR, 0.36; 95% CI, 0.19-0.68; p = 0.002). Additionally, compared with the control group, ARBs use did not significantly increase the risk of acute kidney injury (12.4% vs. 10.9%, p = 0.628), renal replacement therapy (0.6% vs. 0.3%, p = 1.000), and hyperkalemia (1.8% vs. 2.1%, p = 1.000). Conclusion Although residual confounding cannot be excluded, the use of ARBs was associated with lower in-hospital mortality in Chinese patients with hypertension hospitalized with CAP.
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Affiliation(s)
- Dawei Chen
- Department of Nephrology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Yan Tan
- Department of Respiratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Xin Wan
- Department of Nephrology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
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Battini V, Rocca S, Guarnieri G, Bombelli A, Gringeri M, Mosini G, Pozzi M, Nobile M, Radice S, Clementi E, Schindler A, Carnovale C, Pizzorni N. On the potential of drug repurposing in dysphagia treatment: New insights from a real-world pharmacovigilance study and a systematic review. Front Pharmacol 2023; 14:1057301. [PMID: 36937893 PMCID: PMC10022593 DOI: 10.3389/fphar.2023.1057301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 01/30/2023] [Indexed: 03/06/2023] Open
Abstract
Background: Polypharmacy is common in patients with dysphagia. Routinely used drugs may influence swallowing function either improving or worsening it. We aimed to explore the potential effects of three commonly used drug classes on dysphagia and aspiration pneumonia through a systematic review and a real-world data analysis to probe the possibility of drug repurposing for dysphagia treatment. Material and Methods: Five electronic databases were searched. Studies on adults at risk for dysphagia, treated with Dipeptidyl-Peptidase IV Inhibitors (DPP-4i), Adrenergic Beta-Antagonists (beta-blockers), or Angiotensin-Converting Enzyme Inhibitors (ACEi), and reporting outcomes on dysphagia or aspiration pneumonia were included. A nested case/non-case study was performed on adverse events recorded in the FDA Adverse Event Reporting System (FAERS) on patients >64 years. Cases (dysphagia or aspiration pneumonia) were compared between patients only treated with Levodopa and patients who were concomitantly treated with the drugs of interest. Results: Twenty studies were included in the review (17 on ACEi, 2 on beta-blockers, and 1 on DPP-4i). Contrasting findings on the effects of ACEi were found, with a protective effect mainly reported in Asian studies on neurological patients. Beta-blockers were associated with a reduced dysphagia rate. The study on DPP-4i suggested no effect on dysphagia and an increased risk of aspiration pneumonia. The FAERS analysis showed a reduction of the risk for dysphagia/aspiration pneumonia with ACEi, beta-blockers, and DPP-4i. Conclusion: Our study explores the potential drug repurposing of ACEi, beta-blockers and DPP-4i in neurological patients with dysphagia to improve swallowing function and reduce aspiration pneumonia risk. Future randomized controlled studies should confirm these results and clarify the underlying mechanisms of action.
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Affiliation(s)
- Vera Battini
- Department of Biomedical and Clinical Sciences, Pharmacovigilance & Clinical Research, International Centre for Pesticides and Health Risk Prevention, “Luigi Sacco” University Hospital, Università degli Studi di Milano, Milan, Italy
| | - Sara Rocca
- Phoniatric Unit, Department of Biomedical and Clinical Sciences, “Luigi Sacco” University Hospital, Università degli Studi di Milano, Milan, Italy
| | - Greta Guarnieri
- Department of Biomedical and Clinical Sciences, Pharmacovigilance & Clinical Research, International Centre for Pesticides and Health Risk Prevention, “Luigi Sacco” University Hospital, Università degli Studi di Milano, Milan, Italy
| | - Anna Bombelli
- Department of Biomedical and Clinical Sciences, Pharmacovigilance & Clinical Research, International Centre for Pesticides and Health Risk Prevention, “Luigi Sacco” University Hospital, Università degli Studi di Milano, Milan, Italy
| | - Michele Gringeri
- Department of Biomedical and Clinical Sciences, Pharmacovigilance & Clinical Research, International Centre for Pesticides and Health Risk Prevention, “Luigi Sacco” University Hospital, Università degli Studi di Milano, Milan, Italy
| | - Giulia Mosini
- Department of Biomedical and Clinical Sciences, Pharmacovigilance & Clinical Research, International Centre for Pesticides and Health Risk Prevention, “Luigi Sacco” University Hospital, Università degli Studi di Milano, Milan, Italy
| | - Marco Pozzi
- Scientific Institute IRCCS Eugenio Medea, Bosisio Parini(LC), Italy
| | - Maria Nobile
- Scientific Institute IRCCS Eugenio Medea, Bosisio Parini(LC), Italy
| | - Sonia Radice
- Department of Biomedical and Clinical Sciences, Pharmacovigilance & Clinical Research, International Centre for Pesticides and Health Risk Prevention, “Luigi Sacco” University Hospital, Università degli Studi di Milano, Milan, Italy
| | - Emilio Clementi
- Department of Biomedical and Clinical Sciences, Pharmacovigilance & Clinical Research, International Centre for Pesticides and Health Risk Prevention, “Luigi Sacco” University Hospital, Università degli Studi di Milano, Milan, Italy
- Scientific Institute IRCCS Eugenio Medea, Bosisio Parini(LC), Italy
| | - Antonio Schindler
- Phoniatric Unit, Department of Biomedical and Clinical Sciences, “Luigi Sacco” University Hospital, Università degli Studi di Milano, Milan, Italy
| | - Carla Carnovale
- Department of Biomedical and Clinical Sciences, Pharmacovigilance & Clinical Research, International Centre for Pesticides and Health Risk Prevention, “Luigi Sacco” University Hospital, Università degli Studi di Milano, Milan, Italy
- *Correspondence: Carla Carnovale,
| | - Nicole Pizzorni
- Phoniatric Unit, Department of Biomedical and Clinical Sciences, “Luigi Sacco” University Hospital, Università degli Studi di Milano, Milan, Italy
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Coles MJ, Masood M, Crowley MM, Hudgi A, Okereke C, Klein J. It Ain't Over 'Til It's Over: SARS CoV-2 and Post-infectious Gastrointestinal Dysmotility. Dig Dis Sci 2022; 67:5407-5415. [PMID: 35357608 PMCID: PMC8968095 DOI: 10.1007/s10620-022-07480-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 12/20/2021] [Indexed: 01/05/2023]
Abstract
The ongoing pandemic resulting from severe acute respiratory syndrome-caused by coronavirus 2 (SARS-CoV-2)-has posed a multitude of healthcare challenges of unprecedented proportions. Intestinal enterocytes have the highest expression of angiotensin-converting enzyme-2 (ACE2), which functions as the key receptor for SARS-CoV-2 entry into cells. As such, particular interest has been accorded to SARS-CoV-2 and how it manifests within the gastrointestinal system. The acute and chronic alimentary clinical implications of infection are yet to be fully elucidated, however, the gastrointestinal consequences from non-SARS-CoV-2 viral GI tract infections, coupled with the generalized nature of late sequelae following COVID-19 disease, would predict that motility disorders are likely to be seen in these patients. Determination of the chronic effects of COVID-19 disease, herein defined as GI disease which is persistent or recurrent more than 3 months following recovery from the acute respiratory illness, will require comprehensive investigations comprising combined endoscopic- and motility-based evaluation. It will be fascinating to ascertain whether the specific post-COVID-19 phenotype is hypotonic or hypertonic in nature and to identify the most vulnerable target portions of the gut. A specific biological hypothesis is that motility disorders may result from SARS-CoV-2-induced angiotensin-converting enzyme 2 (ACE2) depletion. Since SARS-CoV-2 is known to exhibit direct neuronal tropism, the potential also exists for the development of neurogenic motility disorders. This review aims to explore some of the potential pathophysiologic mechanisms underlying motility dysfunction as it relates to ACE2 and thereby aims to provide the foundation for mechanism-based potential therapeutic options.
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Affiliation(s)
- Michael J Coles
- Department of Gastroenterology, Temple University Hospital, Philadelphia, USA.
| | - Muaaz Masood
- Department of Internal Medicine, Medical College of Georgia, Augusta, USA
| | - Madeline M Crowley
- Department of Biomedical Engineering, University of British Colombia, Vancouver, Canada
| | - Amit Hudgi
- Department of Internal Medicine, Medical College of Georgia, Augusta, USA
| | - Chijioke Okereke
- Department of Internal Medicine, Medical College of Georgia, Augusta, USA
| | - Jeremy Klein
- Lewis Katz School of Medicine, Temple University, Philadelphia, USA
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Ruan Z, Li D, Hu Y, Qiu Z, Chen X. The Association of Renin-Angiotensin System Blockades and Mortality in Patients with Acute Exacerbation of Chronic Obstructive Pulmonary Disease and Acute Respiratory Failure: A Retrospective Cohort Study. Int J Chron Obstruct Pulmon Dis 2022; 17:2001-2011. [PMID: 36072611 PMCID: PMC9444000 DOI: 10.2147/copd.s370817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 08/28/2022] [Indexed: 11/23/2022] Open
Abstract
Background Acute respiratory failure (ARF) is a common cause of admission to the intensive care unit (ICU) for patients with acute exacerbation of chronic obstructive pulmonary disease (AECOPD). There is still a lack of effective interventions and treatments. ACE inhibitors (ACEI)/ angiotensin II receptor blockers (ARB) were effective in COPD patients. We aimed to study the effect of ACEI/ARB use on AECOPD combined with ARF and evaluate the effect of in-hospital continuation of medication. Methods We included patients with AECOPD and ARF from the Medical Information Bank for Intensive Care (MIMIC-III) database. MIMIC III is a large cohort database from Boston, USA. Patients were divided into two groups according to the use of ACEI/ARB before admission. Propensity score matching (PSM) was used to reduce potential bias between the two groups. Cox regression and Kaplan-Meier curves compared 30-day mortality in ACEI/ARB users and non-users. We also defined and analyzed the use of in-hospital ACEI/ARB. Multiple models were used to ensure the robustness of the findings. Subgroup analysis was used to analyze the variability between groups. Results A total of 544 patients were included in the original study. After PSM, 256 patients were included in the matched cohort. Multivariate Cox regression showed 30-day mortality was significantly lower in ACEI/ARB users compared with controls (HR = 0.50, 95% CI: 0.29–0.86, p= 0.013). In PSM and inverse probability-weighted models, the results are stable Continued in-hospital use of ACEI/ARB remains effective (HR 0.40, 95% CI 0.22–0.74, p = 0.003). Kaplan-Meier showed a significant difference in survival between the two groups. Conclusion This study found that pre-hospital ACEI/ARB use was associated with reduced mortality in patients with AECOPD and ARF.
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Affiliation(s)
- Zhishen Ruan
- The First Clinical College, Shandong Chinese Medical University, Ji Nan, People’s Republic of China
| | - Dan Li
- The First Clinical College, Shandong Chinese Medical University, Ji Nan, People’s Republic of China
| | - Yuanlong Hu
- The First Clinical College, Shandong Chinese Medical University, Ji Nan, People’s Republic of China
| | - Zhanjun Qiu
- The First Clinical College, Shandong Chinese Medical University, Ji Nan, People’s Republic of China
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Ji Nan, People’s Republic of China
- Correspondence: Zhanjun Qiu; Xianhai Chen, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Ji Nan, People’s Republic of China, Tel/Fax +86 0531 18660199889, Email ;
| | - Xianhai Chen
- The First Clinical College, Shandong Chinese Medical University, Ji Nan, People’s Republic of China
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Ji Nan, People’s Republic of China
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5
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Fang Y, Zhang X. A propensity score-matching analysis of angiotensin-converting enzyme inhibitor and angiotensin receptor blocker exposure on in-hospital mortality in patients with acute respiratory failure. Pharmacotherapy 2022; 42:387-396. [PMID: 35344607 PMCID: PMC9322533 DOI: 10.1002/phar.2677] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 03/06/2022] [Accepted: 03/07/2022] [Indexed: 02/05/2023]
Abstract
STUDY OBJECTIVE To explore the impact of pre-hospital ACEI and ARB exposure on the prognosis of ARF patients. DESIGN A single-center retrospective cohort study. SETTING Medical Information Mart for Intensive Care-III (MIMIC-III) database. PATIENTS The patients meeting ICD-9 code of acute respiratory failure were enrolled. INTERVENTION The primary exposure was the pre-hospital exposure of ACEI and ARB. MEASUREMENT AND MAIN RESULTS The primary outcome was in-hospital mortality. Multiple logistic regression analysis was conducted to determine the independent effect of ACEI/ARB exposure on mortality. Propensity score matching (PSM) method was adopted to reduce bias of the confounders. Subgroup analysis and sensitivity analysis were used to test the stability of the conclusion. 5335 adult ARF patients were enrolled. Mortality was significantly decreased in patients with ACEI/ARB exposure before and after PSM, and the adjusted odds ratio (OR) of ACEI/ARB exposure was 0.56 (95% CI 0.43-0.72). In the subgroup analysis, ACEI/ARB lost its protective effect in young subgroup, but no significant interaction was found between ACEI/ARB exposure and age (p = 0.082). The point estimation and lower 95% limit of E-value was 2.97 and 2.12. In sensitivity analysis, ACEI/ARB exposure showed similar effect in ARDS cohort, but no significantly difference was found in the MIMIC-IV database, which may be explained by small sample size of the ACEI/ARB group. CONCLUSIONS Among patients with acute respiratory failure, pre-hospital ACEI/ARB exposure was associated with better outcomes and acted as an independent factor. The relationship between ACEI/ARB and prognosis of ARF is worth investigating further.
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Affiliation(s)
- Yi‐Peng Fang
- Laboratory of Molecular CardiologyThe First Affiliated Hospital of Shantou University Medical CollegeShantouChina
- Laboratory of Medical Molecular ImagingThe First Affiliated Hospital of Shantou University Medical CollegeShantouChina
- Shantou University Medical CollegeShantouChina
| | - Xin Zhang
- Laboratory of Molecular CardiologyThe First Affiliated Hospital of Shantou University Medical CollegeShantouChina
- Laboratory of Medical Molecular ImagingThe First Affiliated Hospital of Shantou University Medical CollegeShantouChina
- Shantou University Medical CollegeShantouChina
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6
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Krenn K, Tretter V, Kraft F, Ullrich R. The Renin-Angiotensin System as a Component of Biotrauma in Acute Respiratory Distress Syndrome. Front Physiol 2022; 12:806062. [PMID: 35498160 PMCID: PMC9043684 DOI: 10.3389/fphys.2021.806062] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 12/29/2021] [Indexed: 12/13/2022] Open
Abstract
Acute respiratory distress syndrome (ARDS) is a major concern in critical care medicine with a high mortality of over 30%. Injury to the lungs is caused not only by underlying pathological conditions such as pneumonia, sepsis, or trauma, but also by ventilator-induced lung injury (VILI) resulting from high positive pressure levels and a high inspiratory oxygen fraction. Apart from mechanical factors that stress the lungs with a specific physical power and cause volutrauma and barotrauma, it is increasingly recognized that lung injury is further aggravated by biological mediators. The COVID-19 pandemic has led to increased interest in the role of the renin-angiotensin system (RAS) in the context of ARDS, as the RAS enzyme angiotensin-converting enzyme 2 serves as the primary cell entry receptor for severe acute respiratory syndrome (SARS) coronavirus (CoV)-2. Even before this pandemic, studies have documented the involvement of the RAS in VILI and its dysregulation in clinical ARDS. In recent years, analytical tools for RAS investigation have made major advances based on the optimized precision and detail of mass spectrometry. Given that many clinical trials with pharmacological interventions in ARDS were negative, RAS-modifying drugs may represent an interesting starting point for novel therapeutic approaches. Results from animal models have highlighted the potential of RAS-modifying drugs to prevent VILI or treat ARDS. While these drugs have beneficial pulmonary effects, the best targets and application forms for intervention still have to be determined to avoid negative effects on the circulation in clinical settings.
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Chamata Y, Jackson KG, Watson KA, Jauregi P. Whey-Derived Peptides at the Heart of the COVID-19 Pandemic. Int J Mol Sci 2021; 22:11662. [PMID: 34769093 PMCID: PMC8584039 DOI: 10.3390/ijms222111662] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/21/2021] [Accepted: 10/26/2021] [Indexed: 12/14/2022] Open
Abstract
The renin-angiotensin system (RAS) is a key regulator of blood pressure and hypertension. Angiotensin-converting enzyme 2 (ACE2) and angiotensin-converting enzyme I (ACE) are two main components of the RAS that play a major role in blood pressure homeostasis. The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) uses ACE2 as a receptor to enter cells. Despite some controversies, numerous studies have reported a significant association between the use of ACE inhibitors and reduced risk of COVID-19. In our previous studies, we produced and identified peptide sequences present in whey hydrolysates exhibiting high ACE inhibitory activity. Therefore, the aim of this work is to obtain an improved understanding of the function of these natural peptides as RAS inhibitors and investigate their potential therapeutic role in the COVID-19 pandemic. The molecular interactions between peptides IPP, LIVTQ, IIAE, LVYPFP, and human ACE2 were assessed by employing a molecular docking approach. The results show that natural whey-derived peptides have a dual inhibitory action against both ACE and ACE2. This dual activity distinguishes these ACE inhibitory peptides from synthetic drugs, such as Captopril and Lisinopril which were not shown to inhibit ACE2 activity, and may represent a potential strategy in the treatment of COVID-19.
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Affiliation(s)
- Yara Chamata
- Harry Nursten Building, Department of Food and Nutritional Sciences, University of Reading, Reading RG6 6DZ, UK; (K.G.J.); (P.J.)
| | - Kim G. Jackson
- Harry Nursten Building, Department of Food and Nutritional Sciences, University of Reading, Reading RG6 6DZ, UK; (K.G.J.); (P.J.)
| | - Kimberly A. Watson
- Health and Life Sciences Building, School of Biological Sciences, University of Reading, Reading RG6 6EX, UK;
| | - Paula Jauregi
- Harry Nursten Building, Department of Food and Nutritional Sciences, University of Reading, Reading RG6 6DZ, UK; (K.G.J.); (P.J.)
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Lin SY, Chang SS, Lin CL, Lin CC, Hsu WH, Chou CH, Chi CY, Lin CD, Tu CY, Hsu CY, Kao CH. Association between angiotensin-converting enzyme inhibitors or angiotensin receptor blockers and community-acquired pneumonia: A nationwide population propensity-score matching study. Int J Clin Pract 2021; 75:e14476. [PMID: 34107133 DOI: 10.1111/ijcp.14476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 06/04/2021] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Few large-scale cohort studies have investigated the association between community-acquired pneumonia and the use of angiotensin-converting enzyme inhibitors (ACEIs) or angiotensin II receptor blockers (ARBs). We aimed to study whether using ACEIs or ARBs had protective effects for community-acquired pneumonia. METHODS This database cohort study was conducted retrospectively in Taiwan. The hypertensive patients were the target population of this study. Patients with ARB use were defined as our first study cohort. The second study cohort comprised patients who used ACEI. Propensity-score matching at 1:1 was used between ARB users and non-ARB users. We recruited 67 944 participants for the ARB study and 58 062 participants for the ACEI study. The same matching was also performed between ACEI users and non-ACEI users. Cox proportional hazard regression was used to analyse the risk of the outcome of viral pneumonia. RESULTS The hazard ratio of community-acquired pneumonia for ARB users relative to non-ARB users was 0.33. The hazard ratio of community-acquired pneumonia was 0.71 times in ACEI users compared with ACEI nonusers. In stratification analysis, both ARB and ACEI both exhibited a protective effect for community-acquired pneumonia in each age and sex group. In the analysis of the effects of therapy duration, patients using ARB for fewer than 100 days exhibited a greater reduction in the risk of community-acquired pneumonia (adjusted HR = 0.58) compared with the non-ARB cohort. For the ACEI study, patients who used ACEI for 121-450 days were more likely to exhibit reduced risks of community-acquired pneumonia (adjusted HR = 0.5). CONCLUSION Both ACEI and ARB uses were associated with decreased risk of community-acquired pneumonia infection.
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Affiliation(s)
- Shih-Yi Lin
- Graduate Institute of Biomedical Sciences and School of Medicine, China Medical University, Taichung, Taiwan
- Division of Nephrology and Kidney Institute, China Medical University Hospital, Taichung, Taiwan
| | - Shih-Sheng Chang
- Graduate Institute of Biomedical Sciences and School of Medicine, China Medical University, Taichung, Taiwan
- Division of Cardiovascular Medicine, Center of Health Evaluation and Promotion, China Medical University Hospital, Taichung, Taiwan
| | - Cheng-Li Lin
- Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan
- College of Medicine, China Medical University, Taichung, Taiwan
| | - Cheng-Chieh Lin
- Graduate Institute of Biomedical Sciences and School of Medicine, China Medical University, Taichung, Taiwan
- Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Wu-Huei Hsu
- Graduate Institute of Biomedical Sciences and School of Medicine, China Medical University, Taichung, Taiwan
- Department of Chest Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Chia-Hui Chou
- Graduate Institute of Biomedical Sciences and School of Medicine, China Medical University, Taichung, Taiwan
- Department of Infection, China Medical University Hospital, Taichung, Taiwan
| | - Chih-Yu Chi
- Graduate Institute of Biomedical Sciences and School of Medicine, China Medical University, Taichung, Taiwan
- Department of Infection, China Medical University Hospital, Taichung, Taiwan
| | - Chia-Der Lin
- Graduate Institute of Biomedical Sciences and School of Medicine, China Medical University, Taichung, Taiwan
- Department of Otolaryngology, China Medical University Hospital, Taichung, Taiwan
| | - Chih-Yen Tu
- Graduate Institute of Biomedical Sciences and School of Medicine, China Medical University, Taichung, Taiwan
- Department of Chest Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Chung-Y Hsu
- Graduate Institute of Biomedical Sciences and School of Medicine, China Medical University, Taichung, Taiwan
| | - Chia-Hung Kao
- Graduate Institute of Biomedical Sciences and School of Medicine, China Medical University, Taichung, Taiwan
- Department of Nuclear Medicine and PET Center, China Medical University Hospital, Taichung, Taiwan
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
- Center of Augmented Intelligence in Healthcare, China Medical University Hospital, Taichung, Taiwan
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9
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Vura NVRK, Sandooja R, Firoz A. To do or not to do: Angiotensin converting enzyme inhibitors/angiotensin receptor blocker in COVID-19 elderly patients. EXCLI JOURNAL 2021; 20:1145-1151. [PMID: 34345233 PMCID: PMC8326497 DOI: 10.17179/excli2021-3821] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 07/02/2021] [Indexed: 12/15/2022]
Affiliation(s)
| | - Rashi Sandooja
- Department of Internal Medicine, Cleveland Clinic Akron General, Akron, Ohio
| | - Amena Firoz
- Pondicherry Institute of Medical Sciences, India
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10
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Tetlow S, Segiet-Swiecicka A, O'Sullivan R, O'Halloran S, Kalb K, Brathwaite-Shirley C, Alger L, Ankuli A, Baig MS, Catmur F, Chan T, Dudley D, Fisher J, Iqbal MU, Puczynska J, Wilkins R, Bygate R, Roberts P. ACE inhibitors, angiotensin receptor blockers and endothelial injury in COVID-19. J Intern Med 2021; 289:688-699. [PMID: 33210357 PMCID: PMC7753609 DOI: 10.1111/joim.13202] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 10/15/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND COVID-19 is caused by the coronavirus SARS-CoV-2, which uses angiotensin-converting enzyme 2 (ACE-2) as a receptor for cellular entry. It is theorized that ACE inhibitors (ACE-Is) or angiotensin receptor blockers (ARBs) may increase vulnerability to SARS-CoV-2 by upregulating ACE-2 expression, but ACE-I/ARB discontinuation is associated with clinical deterioration. OBJECTIVE To determine whether ACE-I and ARB use is associated with acute kidney injury (AKI), macrovascular thrombosis and in-hospital mortality. METHODS A retrospective, single-centre study of 558 hospital inpatients with confirmed COVID-19 admitted from 1 March to 30 April 2020, followed up until 24 May 2020. AKI and macrovascular thrombosis were primary end-points, and in-hospital mortality was a secondary end-point. RESULTS AKI occurred in 126 (23.1%) patients, 34 (6.1%) developed macrovascular thrombi, and 200 (35.9%) died. Overlap propensity score-weighted analysis showed no significant effect of ACE-I/ARB use on the risk of occurrence of the specified end-points. On exploratory analysis, severe chronic kidney disease (CKD) increases odds of macrovascular thrombi (OR: 8.237, 95% CI: 1.689-40.181, P = 0.009). The risk of AKI increased with advancing age (OR: 1.028, 95% CI: 1.011-1.044, P = 0.001) and diabetes (OR: 1.675, 95% CI: 1.065-2.633, P = 0.025). Immunosuppression was associated with lower risk of AKI (OR: 0.160, 95% CI: 0.029-0.886, P = 0.036). Advancing age, dependence on care, male gender and eGFR < 60 mL min-1 /1.73 m2 increased odds of in-hospital mortality. CONCLUSION We did not identify an association between ACE-I/ARB use and AKI, macrovascular thrombi or mortality. This supports the recommendations of the European and American Societies of Cardiology that ACE-Is and ARBs should not be discontinued during the COVID-19 pandemic.
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Affiliation(s)
- S Tetlow
- From the, Department of Acute Medicine, University College Hospital, Bloomsbury, London, UK
| | - A Segiet-Swiecicka
- Chair and Department of Experimental and Clinical Physiology, Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Warszawa, Poland.,Department of Coronary Artery Disease and Cardiac Rehabilitation, Cardinal Stefan Wyszynski Institute of Cardiology, Warszawa, Poland
| | - R O'Sullivan
- Department of Critical Care, Lewisham and Greenwich NHS Trust, London, UK
| | - S O'Halloran
- Department of Critical Care, Lewisham and Greenwich NHS Trust, London, UK
| | - K Kalb
- Department of Critical Care, Lewisham and Greenwich NHS Trust, London, UK
| | | | - L Alger
- Department of Critical Care, Lewisham and Greenwich NHS Trust, London, UK
| | - A Ankuli
- Department of Critical Care, Lewisham and Greenwich NHS Trust, London, UK
| | - M S Baig
- Department of Critical Care, Lewisham and Greenwich NHS Trust, London, UK
| | - F Catmur
- Department of Critical Care, Lewisham and Greenwich NHS Trust, London, UK
| | - T Chan
- Department of Critical Care, Lewisham and Greenwich NHS Trust, London, UK
| | - D Dudley
- Department of Critical Care, Lewisham and Greenwich NHS Trust, London, UK
| | - J Fisher
- Department of Critical Care, Lewisham and Greenwich NHS Trust, London, UK
| | - M U Iqbal
- Department of Critical Care, Lewisham and Greenwich NHS Trust, London, UK
| | - J Puczynska
- Department of Critical Care, Lewisham and Greenwich NHS Trust, London, UK
| | - R Wilkins
- Department of Critical Care, Lewisham and Greenwich NHS Trust, London, UK
| | - R Bygate
- Department of Acute Medicine, Newham University Hospital NHS Trust, Newham University Hospital, London, UK
| | - P Roberts
- Department of Critical Care, Lewisham and Greenwich NHS Trust, London, UK
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11
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Clinical Characteristics and Outcomes of Patients with COVID-19 Infection: The Results of the SARS-RAS Study of the Italian Society of Hypertension. High Blood Press Cardiovasc Prev 2021; 28:5-11. [PMID: 33471297 PMCID: PMC7816058 DOI: 10.1007/s40292-020-00429-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 12/22/2020] [Indexed: 02/07/2023] Open
Abstract
The COVID-19 infection has rapidly spread around the world and a second wave is sweeping in many countries. Different clinical and epidemiological aspects characterize the disease and their understanding is necessary to better face the management of the pandemic in progress. The Italian society of arterial hypertension with the SARS-RAS study has contributed significantly to the knowledge of the interaction between inhibition of the renin-angiotensin system and COVID-19 infection. Furthermore, the study results help to understand some of the main aspects related to mortality and morbidity deriving from the infection through a multicentre analysis throughout the national territory.
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12
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Hülsmann S, Khabbazzadeh S, Meissner K, Quintel M. A Potential Role of the Renin-Angiotensin-System for Disturbances of Respiratory Chemosensitivity in Acute Respiratory Distress Syndrome and Severe Acute Respiratory Syndrome. Front Physiol 2021; 11:588248. [PMID: 33551831 PMCID: PMC7857271 DOI: 10.3389/fphys.2020.588248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 12/07/2020] [Indexed: 12/27/2022] Open
Abstract
Acute respiratory distress syndrome (ARDS) represents an acute diffuse inflammation of the lungs triggered by different causes, uniformly leading to a noncardiogenic pulmonary edema with inhomogeneous densities in lung X-ray and lung CT scan and acute hypoxemia. Edema formation results in "heavy" lungs, inducing loss of compliance and the need to spend more energy to "move" the lungs. Consequently, an ARDS patient, as long as the patient is breathing spontaneously, has an increased respiratory drive to ensure adequate oxygenation and CO2 removal. One would expect that, once the blood gases get back to "physiological" values, the respiratory drive would normalize and the breathing effort return to its initial status. However, in many ARDS patients, this is not the case; their respiratory drive appears to be upregulated and fully or at least partially detached from the blood gas status. Strikingly, similar alteration of the respiratory drive can be seen in patients suffering from SARS, especially SARS-Covid-19. We hypothesize that alterations of the renin-angiotensin-system (RAS) related to the pathophysiology of ARDS and SARS are involved in this dysregulation of chemosensitive control of breathing.
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Affiliation(s)
- Swen Hülsmann
- Universitätsmedizin Göttingen, Klinik für Anästhesiologie, Georg-August-Universität, Göttingen, Germany
| | - Sepideh Khabbazzadeh
- Universitätsmedizin Göttingen, Klinik für Anästhesiologie, Georg-August-Universität, Göttingen, Germany
| | - Konrad Meissner
- Universitätsmedizin Göttingen, Klinik für Anästhesiologie, Georg-August-Universität, Göttingen, Germany
| | - Michael Quintel
- Universitätsmedizin Göttingen, Klinik für Anästhesiologie, Georg-August-Universität, Göttingen, Germany
- DONAUISAR Klinikum Deggendorf, Deggendorf, Germany
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13
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Talebi A, Emami F, Biranvand R, Moosavi Z, Ramtin K, Sadeghi S, Baghaei K, Lak Z, Nematbakhsh M. Protective Role of Angiotensin II Type 1 Receptor Blocker on Short Time Effect of Oleic Acid Induced Lung and Kidney Injury. Int J Prev Med 2021; 12:4. [PMID: 34084301 PMCID: PMC8106270 DOI: 10.4103/ijpvm.ijpvm_323_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Accepted: 04/02/2019] [Indexed: 01/13/2023] Open
Abstract
Backgrounds: Acute respiratory distress syndrome (ARDS) causes high mortality rate in clinic, and the pathogenesis of this syndrome may interact with renin angiotensin system (RAS) components. The main objective of this study was to determine the protective role of AT1R antagonist (losartan) on oleic acid (OA) induced ARDS and kidney injury. Methods: The animal model of ARDS was performed by intravenous administration of 250 μl/kg oleic acid (OA). Male and female rats were subjected to received intravenously vehicle (saline, groups 1 and 4), OA (groups 2 and 5), or losartan (10 mg/kg) plus OA (groups 3 and 6), and six hour later, the measurements were performed. Results: Co-treatment of OA and losartan increased the serum levels of blood urea nitrogen significantly (P < 0.05) and creatinine insignificantly in both gender. However, the OA induced kidney damage was decreased by losartan significantly in male (P < 0.05) and insignificantly in female rats. In addition, co-treatment of OA and losartan decreased lung water content significantly in male rats (P < 0.05). Based on tissue staining, no significant difference in lung tissue damages were observed between the groups, however some exudate were observed in lung male rats treated with OA alone which were abolished by losartan. Conclusions: Losartan may protect the kidney and lung against OA induced tissue injury in male rats. This protective action is not certain in female rats.
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Affiliation(s)
- Ardeshir Talebi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Clinical Pathology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fatemeh Emami
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Reza Biranvand
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Student Research Committee, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Zahra Moosavi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Student Research Committee, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Kimia Ramtin
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Student Research Committee, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Soheil Sadeghi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Student Research Committee, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Kimia Baghaei
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Student Research Committee, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Zahra Lak
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mehdi Nematbakhsh
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Physiology, Isfahan University of Medical Sciences, Isfahan, Iran.,IsfahanMN Institute of Basic and Applied Sciences Research, Isfahan, Iran
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14
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Martínez-Del Río J, Piqueras-Flores J, Nieto-Sandoval Martín de la Sierra P, Negreira-Caamaño M, Águila-Gordo D, Mateo-Gómez C, Salas-Bravo D, Rodríguez-Martínez M. Comparative analysis between the use of renin-angiotensin system antagonists and clinical outcomes of hospitalized patients with COVID-19 respiratory infection. MEDICINA CLINICA (ENGLISH ED.) 2020; 155:473-481. [PMID: 33209988 PMCID: PMC7659923 DOI: 10.1016/j.medcle.2020.07.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Accepted: 07/15/2020] [Indexed: 01/18/2023]
Abstract
INTRODUCTION Hypertension has been associated with worse outcomes in patients with COVID-19 infection, so concerns have been raised about the possibility that inhibitors of the renin-angiotensin system (RAS) could influence the prognosis of these patients. METHODS This is an observational study of 921 consecutive patients admitted with COVID-19 respiratory infection to Hospital General Universitario Ciudad Real from March 1 to April 30, 2020. Following data were collected including patient demographic information, medical history, clinical characteristics, laboratory data, therapeutic interventions during the hospitalization and clinical outcomes. RESULTS The mean age was 78 years, and 59.2% of patients had a history of hypertension. Patients with previous treatment with RAS inhibitor (42.4%) showed lower risk of the primary composite endpoint (mortality or need for invasive mechanical ventilation). Treatment with RAS inhibitor (both outpatient treatment and during hospitalization) had neither effect on mortality nor need for invasive ventilation. There were no differences in time-to-event analysis between groups. CONCLUSIONS RAS inhibitor treatment prior to admission in patients with COVID-19 respiratory infection was associated with lower risk of the primary composite endpoint and did not show neither impact on mortality nor need for invasive mechanical ventilation, even if these drugs were prescribed during hospitalization.
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Affiliation(s)
- Jorge Martínez-Del Río
- Servicio de Cardiología, Hospital General Universitario de Ciudad Real, Ciudad Real, Spain
| | - Jesús Piqueras-Flores
- Servicio de Cardiología, Hospital General Universitario de Ciudad Real, Ciudad Real, Spain
| | | | | | - Daniel Águila-Gordo
- Servicio de Cardiología, Hospital General Universitario de Ciudad Real, Ciudad Real, Spain
| | - Cristina Mateo-Gómez
- Servicio de Cardiología, Hospital General Universitario de Ciudad Real, Ciudad Real, Spain
| | - Daniel Salas-Bravo
- Servicio de Cardiología, Hospital General Universitario de Ciudad Real, Ciudad Real, Spain
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15
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Martínez-Del Río J, Piqueras-Flores J, Nieto-Sandoval Martín de la Sierra P, Negreira-Caamaño M, Águila-Gordo D, Mateo-Gómez C, Salas-Bravo D, Rodríguez-Martínez M. [Comparative analysis between the use of renin-angiotensin system antagonists and clinical outcomes of hospitalized patients with COVID-19 respiratory infection]. Med Clin (Barc) 2020; 155:473-481. [PMID: 32782110 PMCID: PMC7381916 DOI: 10.1016/j.medcli.2020.07.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 07/12/2020] [Accepted: 07/15/2020] [Indexed: 12/31/2022]
Abstract
INTRODUCTION Hypertension has been associated with worse outcomes in patients with COVID-19 infection, so concerns have been raised about the possibility that inhibitors of the renin-angiotensin system (RAS) could influence the prognosis of these patients. METHODS This is an observational study of 921 consecutive patients admitted with COVID-19 respiratory infection to Hospital General Universitario Ciudad Real from March 1 to April 30, 2020. Following data were collected including patient demographic information, medical history, clinical characteristics, laboratory data, therapeutic interventions during the hospitalization and clinical outcomes. RESULTS The mean age was 78years, and 59.2% of patients had a history of hypertension. Patients with previous treatment with RAS inhibitor (42.4%) showed lower risk of the primary composite endpoint (mortality or need for invasive mechanical ventilation). Treatment with RAS inhibitor (both outpatient treatment and during hospitalization) had neither effect on mortality nor need for invasive ventilation. There were no differences in time-to-event analysis between groups. CONCLUSIONS RAS inhibitor treatment prior to admission in patients with COVID-19 respiratory infection was associated with lower risk of the primary composite endpoint and did not show neither impact on mortality nor need for invasive mechanical ventilation, even if these drugs were prescribed during hospitalization.
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Affiliation(s)
- Jorge Martínez-Del Río
- Servicio de Cardiología, Hospital General Universitario de Ciudad Real, Ciudad Real, España.
| | - Jesús Piqueras-Flores
- Servicio de Cardiología, Hospital General Universitario de Ciudad Real, Ciudad Real, España
| | | | | | - Daniel Águila-Gordo
- Servicio de Cardiología, Hospital General Universitario de Ciudad Real, Ciudad Real, España
| | - Cristina Mateo-Gómez
- Servicio de Cardiología, Hospital General Universitario de Ciudad Real, Ciudad Real, España
| | - Daniel Salas-Bravo
- Servicio de Cardiología, Hospital General Universitario de Ciudad Real, Ciudad Real, España
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16
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Sriram K, Insel PA. A hypothesis for pathobiology and treatment of COVID-19: The centrality of ACE1/ACE2 imbalance. Br J Pharmacol 2020; 177:4825-4844. [PMID: 32333398 PMCID: PMC7572451 DOI: 10.1111/bph.15082] [Citation(s) in RCA: 120] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 04/17/2020] [Accepted: 04/20/2020] [Indexed: 11/29/2022] Open
Abstract
Angiotensin Converting Enzyme2 is the cell surface binding site for the coronavirus SARS-CoV-2, which causes COVID-19. We propose that an imbalance in the action of ACE1- and ACE2-derived peptides, thereby enhancing angiotensin II (Ang II) signalling is primary driver of COVID-19 pathobiology. ACE1/ACE2 imbalance occurs due to the binding of SARS-CoV-2 to ACE2, reducing ACE2-mediated conversion of Ang II to Ang peptides that counteract pathophysiological effects of ACE1-generated ANG II. This hypothesis suggests several approaches to treat COVID-19 by restoring ACE1/ACE2 balance: (a) AT receptor antagonists; (b) ACE1 inhibitors (ACEIs); (iii) agonists of receptors activated by ACE2-derived peptides (e.g. Ang (1-7), which activates MAS1); (d) recombinant human ACE2 or ACE2 peptides as decoys for the virus. Reducing ACE1/ACE2 imbalance is predicted to blunt COVID-19-associated morbidity and mortality, especially in vulnerable patients. Importantly, approved AT antagonists and ACEIs can be rapidly repurposed to test their efficacy in treating COVID-19. LINKED ARTICLES: This article is part of a themed issue on The Pharmacology of COVID-19. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v177.21/issuetoc.
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Affiliation(s)
- Krishna Sriram
- Department of PharmacologyUniversity of California San DiegoLa JollaCAUSA
| | - Paul A. Insel
- Department of PharmacologyUniversity of California San DiegoLa JollaCAUSA
- Department of MedicineUniversity of California San DiegoLa JollaCAUSA
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17
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Sriram K, Insel PA. A hypothesis for pathobiology and treatment of COVID-19: The centrality of ACE1/ACE2 imbalance. Br J Pharmacol 2020. [PMID: 32333398 DOI: 10.1111/bph.15082.10.1111/bph.15082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/21/2023] Open
Abstract
Angiotensin Converting Enzyme2 is the cell surface binding site for the coronavirus SARS-CoV-2, which causes COVID-19. We propose that an imbalance in the action of ACE1- and ACE2-derived peptides, thereby enhancing angiotensin II (Ang II) signalling is primary driver of COVID-19 pathobiology. ACE1/ACE2 imbalance occurs due to the binding of SARS-CoV-2 to ACE2, reducing ACE2-mediated conversion of Ang II to Ang peptides that counteract pathophysiological effects of ACE1-generated ANG II. This hypothesis suggests several approaches to treat COVID-19 by restoring ACE1/ACE2 balance: (a) AT receptor antagonists; (b) ACE1 inhibitors (ACEIs); (iii) agonists of receptors activated by ACE2-derived peptides (e.g. Ang (1-7), which activates MAS1); (d) recombinant human ACE2 or ACE2 peptides as decoys for the virus. Reducing ACE1/ACE2 imbalance is predicted to blunt COVID-19-associated morbidity and mortality, especially in vulnerable patients. Importantly, approved AT antagonists and ACEIs can be rapidly repurposed to test their efficacy in treating COVID-19. LINKED ARTICLES: This article is part of a themed issue on The Pharmacology of COVID-19. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v177.21/issuetoc.
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Affiliation(s)
- Krishna Sriram
- Department of Pharmacology, University of California San Diego, La Jolla, CA, USA
| | - Paul A Insel
- Department of Pharmacology, University of California San Diego, La Jolla, CA, USA
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
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18
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Karmouty-Quintana H, Thandavarayan RA, Keller SP, Sahay S, Pandit LM, Akkanti B. Emerging Mechanisms of Pulmonary Vasoconstriction in SARS-CoV-2-Induced Acute Respiratory Distress Syndrome (ARDS) and Potential Therapeutic Targets. Int J Mol Sci 2020; 21:E8081. [PMID: 33138181 PMCID: PMC7662604 DOI: 10.3390/ijms21218081] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 10/25/2020] [Accepted: 10/27/2020] [Indexed: 02/07/2023] Open
Abstract
The 1918 influenza killed approximately 50 million people in a few short years, and now, the world is facing another pandemic. In December 2019, a novel coronavirus named severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused an international outbreak of a respiratory illness termed coronavirus disease 2019 (COVID-19) and rapidly spread to cause the worst pandemic since 1918. Recent clinical reports highlight an atypical presentation of acute respiratory distress syndrome (ARDS) in COVID-19 patients characterized by severe hypoxemia, an imbalance of the renin-angiotensin system, an increase in thrombogenic processes, and a cytokine release storm. These processes not only exacerbate lung injury but can also promote pulmonary vascular remodeling and vasoconstriction, which are hallmarks of pulmonary hypertension (PH). PH is a complication of ARDS that has received little attention; thus, we hypothesize that PH in COVID-19-induced ARDS represents an important target for disease amelioration. The mechanisms that can promote PH following SARS-CoV-2 infection are described. In this review article, we outline emerging mechanisms of pulmonary vascular dysfunction and outline potential treatment options that have been clinically tested.
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Affiliation(s)
- Harry Karmouty-Quintana
- Department of Biochemistry and Molecular Biology, McGovern Medical School at The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
- Divisions of Pulmonary, Critical Care and Sleep Medicine, McGovern Medical School at The University of Texas Health Science Center at Houston, Houston, TX 77030, USA;
| | | | - Steven P. Keller
- Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA;
| | - Sandeep Sahay
- Co-Director, Pulmonary Vascular Diseases Center, The Methodist Hospital, Houston, TX 77030, USA;
| | - Lavannya M. Pandit
- Michael E. DeBakey Veterans Affairs Medical Center, Baylor College of Medicine, Houston, TX 77030, USA;
| | - Bindu Akkanti
- Divisions of Pulmonary, Critical Care and Sleep Medicine, McGovern Medical School at The University of Texas Health Science Center at Houston, Houston, TX 77030, USA;
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19
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Genetic Hypothesis and Pharmacogenetics Side of Renin-Angiotensin-System in COVID-19. Genes (Basel) 2020; 11:genes11091044. [PMID: 32899439 PMCID: PMC7563402 DOI: 10.3390/genes11091044] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/30/2020] [Accepted: 09/02/2020] [Indexed: 12/16/2022] Open
Abstract
The importance of host genetics and demography in coronavirus disease 2019 (COVID-19) is a crucial aspect of infection, prognosis and associated case fatality rate. Individual genetic landscapes can contribute to understand Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) burden and can give information on how to fight virus spreading and the associated severe acute respiratory distress syndrome (ARDS). The spread and pathogenicity of the virus have become pandemic on specific geographic areas and ethnicities. Interestingly, SARS-CoV-2 firstly emerged in East Asia and next in Europe, where it has caused higher morbidity and mortality. This is a peculiar feature of SARS-CoV-2, different from past global viral infections (i.e., SARS-1 or MERS); it shares with the previous pandemics strong age- and sex-dependent gaps in the disease outcome. The observation that the severest COVID-19 patients are more likely to have a history of hypertension, diabetes and/or cardiovascular disease and receive Renin-Angiotensin-System (RAS) inhibitor treatment raised the hypothesis that RAS-unbalancing may have a crucial role. Accordingly, we recently published a genetic hypothesis on the role of RAS-pathway genes (ACE1, rs4646994, rs1799752, rs4340, rs13447447; and ACE2, rs2285666, rs1978124, rs714205) and ABO-locus (rs495828, rs8176746) in COVID-19 prognosis, suspecting inherited genetic predispositions to be predictive of COVID-19 severity. In addition, recently, Genome-Wide Association Studies (GWAS) found COVID-19-association signals at locus 3p21.31 (rs11385942) comprising the solute carrier SLC6A20 (Na+ and Cl- coupled transporter family) and at locus 9q34.2 (rs657152) coincident with ABO-blood group (rs8176747, rs41302905, rs8176719), and interestingly, both loci are associated to RAS-pathway. Finally, ACE1 and ACE2 haplotypes seem to provide plausible explanations for why SARS-CoV-2 have affected more heavily some ethnic groups, namely people with European ancestry, than Asians.
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20
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Viana SD, Nunes S, Reis F. ACE2 imbalance as a key player for the poor outcomes in COVID-19 patients with age-related comorbidities - Role of gut microbiota dysbiosis. Ageing Res Rev 2020; 62:101123. [PMID: 32683039 PMCID: PMC7365123 DOI: 10.1016/j.arr.2020.101123] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/05/2020] [Accepted: 07/13/2020] [Indexed: 02/06/2023]
Abstract
COVID-19 patients with pre-existing age-related comorbidities have poor outcomes. Gut microbiota dysbiosis is associated with ageing and age-related diseases. Viral-mediated ACE2 shedding favors poor outcomes by RAS-dependent mechanisms. Viral-mediated ACE2 shedding favors poor outcomes by RAS-independent gut dysbiosis. Potential of ACE2 and gut microbiota-based therapeutic opportunities for COVID-19.
Coronavirus disease 19 (COVID-19) is a pandemic condition caused by the new coronavirus SARS-CoV-2. The typical symptoms are fever, cough, shortness of breath, evolving to a clinical picture of pneumonia and, ultimately, death. Nausea and diarrhea are equally frequent, suggesting viral infection or transmission via the gastrointestinal-enteric system. SARS-CoV-2 infects human cells by using angiotensin converting enzyme 2 (ACE2) as a receptor, which is cleaved by transmembrane proteases during host cells infection, thus reducing its activities. ACE2 is a relevant player in the renin-angiotensin system (RAS), counterbalancing the deleterious effects of angiotensin II. Furthermore, intestinal ACE2 functions as a chaperone for the aminoacid transporter B0AT1. It has been suggested that B0AT1/ACE2 complex in the intestinal epithelium regulates gut microbiota (GM) composition and function, with important repercussions on local and systemic immune responses against pathogenic agents, namely virus. Notably, productive infection of SARS-CoV-2 in ACE2+ mature human enterocytes and patients’ GM dysbiosis was recently demonstrated. This review outlines the evidence linking abnormal ACE2 functions with the poor outcomes (higher disease severity and mortality rate) in COVID-19 patients with pre-existing age-related comorbidities and addresses a possible role for GM dysbiosis. The article culminates with the therapeutics opportunities based on these pathways.
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21
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Reynolds HR, Adhikari S, Pulgarin C, Troxel AB, Iturrate E, Johnson SB, Hausvater A, Newman JD, Berger JS, Bangalore S, Katz SD, Fishman GI, Kunichoff D, Chen Y, Ogedegbe G, Hochman JS. Renin-Angiotensin-Aldosterone System Inhibitors and Risk of Covid-19. N Engl J Med 2020; 382:2441-2448. [PMID: 32356628 PMCID: PMC7206932 DOI: 10.1056/nejmoa2008975] [Citation(s) in RCA: 841] [Impact Index Per Article: 210.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND There is concern about the potential of an increased risk related to medications that act on the renin-angiotensin-aldosterone system in patients exposed to coronavirus disease 2019 (Covid-19), because the viral receptor is angiotensin-converting enzyme 2 (ACE2). METHODS We assessed the relation between previous treatment with ACE inhibitors, angiotensin-receptor blockers, beta-blockers, calcium-channel blockers, or thiazide diuretics and the likelihood of a positive or negative result on Covid-19 testing as well as the likelihood of severe illness (defined as intensive care, mechanical ventilation, or death) among patients who tested positive. Using Bayesian methods, we compared outcomes in patients who had been treated with these medications and in untreated patients, overall and in those with hypertension, after propensity-score matching for receipt of each medication class. A difference of at least 10 percentage points was prespecified as a substantial difference. RESULTS Among 12,594 patients who were tested for Covid-19, a total of 5894 (46.8%) were positive; 1002 of these patients (17.0%) had severe illness. A history of hypertension was present in 4357 patients (34.6%), among whom 2573 (59.1%) had a positive test; 634 of these patients (24.6%) had severe illness. There was no association between any single medication class and an increased likelihood of a positive test. None of the medications examined was associated with a substantial increase in the risk of severe illness among patients who tested positive. CONCLUSIONS We found no substantial increase in the likelihood of a positive test for Covid-19 or in the risk of severe Covid-19 among patients who tested positive in association with five common classes of antihypertensive medications.
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Affiliation(s)
- Harmony R Reynolds
- From the New York University (NYU) Grossman School of Medicine, New York
| | | | - Claudia Pulgarin
- From the New York University (NYU) Grossman School of Medicine, New York
| | - Andrea B Troxel
- From the New York University (NYU) Grossman School of Medicine, New York
| | - Eduardo Iturrate
- From the New York University (NYU) Grossman School of Medicine, New York
| | - Stephen B Johnson
- From the New York University (NYU) Grossman School of Medicine, New York
| | - Anaïs Hausvater
- From the New York University (NYU) Grossman School of Medicine, New York
| | - Jonathan D Newman
- From the New York University (NYU) Grossman School of Medicine, New York
| | - Jeffrey S Berger
- From the New York University (NYU) Grossman School of Medicine, New York
| | - Sripal Bangalore
- From the New York University (NYU) Grossman School of Medicine, New York
| | - Stuart D Katz
- From the New York University (NYU) Grossman School of Medicine, New York
| | - Glenn I Fishman
- From the New York University (NYU) Grossman School of Medicine, New York
| | - Dennis Kunichoff
- From the New York University (NYU) Grossman School of Medicine, New York
| | - Yu Chen
- From the New York University (NYU) Grossman School of Medicine, New York
| | - Gbenga Ogedegbe
- From the New York University (NYU) Grossman School of Medicine, New York
| | - Judith S Hochman
- From the New York University (NYU) Grossman School of Medicine, New York
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22
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Guo X, Zhu Y, Hong Y. Decreased Mortality of COVID-19 With Renin-Angiotensin-Aldosterone System Inhibitors Therapy in Patients With Hypertension: A Meta-Analysis. Hypertension 2020; 76:e13-e14. [PMID: 32458694 DOI: 10.1161/hypertensionaha.120.15572] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Xiaoming Guo
- From the Departments of Neurosurgery (X.G., Y.H.), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yueli Zhu
- Neurology (Y.Z.), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yuan Hong
- From the Departments of Neurosurgery (X.G., Y.H.), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Essig M, Matt M, Massy Z. The COVID-19 outbreak and the angiotensin-converting enzyme 2: too little or too much? Nephrol Dial Transplant 2020; 35:1073-1075. [PMID: 32358609 PMCID: PMC7197558 DOI: 10.1093/ndt/gfaa113] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 04/21/2020] [Indexed: 12/24/2022] Open
Affiliation(s)
- Marie Essig
- APHP University Paris Saclay, Ambroise Paré Hospital, Division of Nephrology, Boulogne Billancourt, France
- INSERM U-1018, Team 5, Centre de recherche en épidémiologie et santé des populations, Versailles Saint-Quentin-en-Yvelines University (Paris-Ile-de-France-Ouest University), Paris-Sud University, and Paris Saclay University, Villejuif, France
- Correspondence to: Marie Essig; E-mail:
| | - Morgan Matt
- APHP University Paris Saclay, Raymond Poincaré Hospital, Division of Infectious disease, Garches, France
| | - Ziad Massy
- APHP University Paris Saclay, Ambroise Paré Hospital, Division of Nephrology, Boulogne Billancourt, France
- INSERM U-1018, Team 5, Centre de recherche en épidémiologie et santé des populations, Versailles Saint-Quentin-en-Yvelines University (Paris-Ile-de-France-Ouest University), Paris-Sud University, and Paris Saclay University, Villejuif, France
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BAYIR YASIN, UN HARUN, CADIRCI ELIF, AKPINAR EROL, DIYARBAKIR BUSRA, CALIK ILKNUR, HALICI ZEKAI. Effects of Aliskiren, an RAAS inhibitor, on a carrageenan-induced pleurisy model of rats. ACTA ACUST UNITED AC 2019; 91:e20180106. [DOI: 10.1590/0001-3765201820180106] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 05/15/2018] [Indexed: 02/07/2023]
Affiliation(s)
| | - HARUN UN
- Agri Ibrahim Cecen University Campus, Turkey
| | | | | | | | - ILKNUR CALIK
- Erzurum Region Education and Research Hospital, Turkey
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Chen M, Chen C, Yuan X, Chen X, Zheng F, Shao L, Zhang Z. Angiotensin II aggravates lipopolysaccharide induced human pulmonary microvascular endothelial cells permeability in high glucose status. Endocr J 2018; 65:717-725. [PMID: 29709898 DOI: 10.1507/endocrj.ej17-0477] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Lung infection is one of the most common infections in diabetes mellitus and is characterized by increased pulmonary microvascular endothelial permeability. Local Angiotensin II (AngII) plays an important role in the pathogenesis of lung diseases. However, whether AngII can aggravate diabetic infectious lung injury is not clear. Therefore, we investigated the effects of AngII on the permeability of human pulmonary microvascular endothelial cells (HPMVECs) challenged by lipopolysaccharide (LPS) in high glucose states in vitro. HPMVECs were divided into five groups: a control group (CON), a high glucose group (HG), an LPS + high glucose group (LH), an LPS + high glucose + AngII group (LHA), and an LPS + high glucose + Losartan group (LHL). The HPMVECs permeability as well as the F-actin levels, cytoskeleton, apoptosis and TNF-α concentrations were evaluated. Compared to the CON group, the HG, LH and LHA groups had significantly higher cellular permeability, cellular apoptosis and TNF-α levels, with more extensive cytoskeletal damage and lower F-actin levels. Additionally, cells in the LHA group exhibited significantly elevated permeability, apoptosis and TNF-α concentrations, lower F-actin levels and more extensive cytoskeletal damage than either the LH or HG group. However, compared to the HG or LH group, the LHL group showed significantly lower cellular permeability, cell apoptosis, cytoskeletal damage and TNF-α concentrations and higher F-actin levels. This study suggests that in a diabetic infectious lung injury cellular model, AngII could aggravate the permeability of HPMVEC via F-actin dynamics and cell apoptosis. Furthermore, blocking the Angiotension II Type 1 Receptor could significantly alleviate the hyperpermeability of HPMVECs.
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Affiliation(s)
- Min Chen
- Department of Endocrinology, Zhongnan Hospital of Wuhan University, Hubei 430071, China
| | - Chang Chen
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Hubei 430071, China
| | - Xiaohui Yuan
- Department of Anesthesiology, Tongren Hospital of Wuhan University & Wuhan Third Hospital, Hubei 430022, China
| | - Xiaoqi Chen
- Department of Endocrinology, Zhongnan Hospital of Wuhan University, Hubei 430071, China
| | - Feng Zheng
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Hubei 430071, China
| | - Liang Shao
- Department of Hematology, Zhongnan Hospital of Wuhan University, Hubei 430071, China
| | - Zongze Zhang
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Hubei 430071, China
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Abouzeid H, Alkholy UM, Abdou MA, Morsy SM, Abdelrahman HM, Sherif AM, Abdalmonem N, Hamed ME, Allah MAN, Al Morshedy S, Elashkar SSA, Noah MA, Hegab MS, Akeel NE, Hashem MIA, Gawish HH, Fattah LA. Angiotensin-converting enzyme insertion/deletion gene polymorphism in Egyptian children with CAP: A case-control study. Pediatr Pulmonol 2017; 52:1592-1598. [PMID: 29028160 DOI: 10.1002/ppul.23886] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 09/01/2017] [Indexed: 01/11/2023]
Abstract
BACKGROUND Community-acquired pneumonia (CAP) is a major cause of childhood morbidity and mortality worldwide. The angiotensin-converting enzyme (ACE) gene is a potential candidate gene for CAP risk. OBJECTIVES In this study, we aimed to investigate whether the ACE insertion/deletion (I/D) polymorphism (rs4340) could be a genetic marker for CAP susceptibility in Egyptian children, and we also measured the serum ACE level to assess its relation to such polymorphism. METHODS This was a prospective case-control study included 300 patients with CAP, and 300 age, gender, and ethnicity matched healthy controls. The ACE I/D polymorphism (rs4340) at intron 16 was genotyped by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP), while the serum ACE levels were measured by ELISA. RESULTS Compared to the controls subjects, the frequencies of the ACE DD genotype and D allele were overrepresented in patients with CAP (OR = 3.05; [95%CI: 2.14-4.35] for the DD genotype; P < 0.001) and (OR: 1.8; [95%CI: 1.42-2.29]; for the D allele; P < 0.01, respectively). Patients with the DD genotype had significantly higher mean serum ACE levels (45.6 ± 11.4 U/L) compared to those with ID genotype (36.5 ± 8.3 U/L) and II genotype (21.6 ± 5.7 U/L); P < 0.01, respectively. CONCLUSION The ACE I/D polymorphism (rs4340) may contribute to the genetic susceptibility of CAP in Egyptian children. The ACE D allele and DD genotype were associated with higher serum ACE levels among studied CAP patients.
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Affiliation(s)
- Heba Abouzeid
- Faculty of Medicine, Department of Pediatrics, Zagazig University, Zagazig, Egypt
| | - Usama M Alkholy
- Faculty of Medicine, Department of Pediatrics, Zagazig University, Zagazig, Egypt
| | - Mohammed A Abdou
- Faculty of Medicine, Department of Pediatrics, Zagazig University, Zagazig, Egypt
| | - Saeed M Morsy
- Faculty of Medicine, Department of Pediatrics, Zagazig University, Zagazig, Egypt
| | - Hind M Abdelrahman
- Faculty of Medicine, Department of Pediatrics, Zagazig University, Zagazig, Egypt
| | - Ashraf M Sherif
- Faculty of Medicine, Department of Pediatrics, Cairo University, Cairo, Egypt
| | - Nermin Abdalmonem
- Faculty of Medicine, Department of Pediatrics, Zagazig University, Zagazig, Egypt
| | - Mohammed E Hamed
- Faculty of Medicine, Department of Pediatrics, Zagazig University, Zagazig, Egypt
| | - Mayy A N Allah
- Faculty of Medicine, Department of Pediatrics, Zagazig University, Zagazig, Egypt
| | - Salah Al Morshedy
- Faculty of Medicine, Department of Pediatrics, Zagazig University, Zagazig, Egypt
| | - Shaimaa S A Elashkar
- Faculty of Medicine, Department of Pediatrics, Zagazig University, Zagazig, Egypt
| | - Maha A Noah
- Faculty of Medicine, Department of Pediatrics, Zagazig University, Zagazig, Egypt
| | - Mohamed S Hegab
- Faculty of Medicine, Department of Pediatrics, Zagazig University, Zagazig, Egypt
| | - Nagwa E Akeel
- Faculty of Medicine, Department of Pediatrics, Zagazig University, Zagazig, Egypt
| | - Mustafa I A Hashem
- Faculty of Medicine, Department of Pediatrics, Zagazig University, Zagazig, Egypt
| | - Heba H Gawish
- Faculty of Medicine, Department of Clinical Pathology, Zagazig University, Zagazig, Egypt
| | - Lobna Abdel Fattah
- Faculty of Medicine, Department of Microbiology and Immunology, Zagazig University, Zagazig, Egypt
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Kim J, Choi SM, Lee J, Park YS, Lee CH, Yim JJ, Yoo CG, Kim YW, Han SK, Lee SM. Effect of Renin-Angiotensin System Blockage in Patients with Acute Respiratory Distress Syndrome: A Retrospective Case Control Study. Korean J Crit Care Med 2017; 32:154-163. [PMID: 31723629 PMCID: PMC6786717 DOI: 10.4266/kjccm.2016.00976] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Revised: 05/15/2017] [Accepted: 05/15/2017] [Indexed: 01/11/2023] Open
Abstract
Background Acute respiratory distress syndrome (ARDS) remains a life-threatening disease. Many patients with ARDS do not recover fully, and progress to terminal lung fibrosis. Angiotensin-converting enzyme (ACE) inhibitor is known to modulate the neurohormonal system to reduce inflammation and to prevent tissue fibrosis. However, the role of ACE inhibitor in the lungs is not well understood. We therefore conducted this study to elucidate the effect of renin-angiotensin system (RAS) blockage on the prognosis of patients with ARDS. Methods We analyzed medical records of patients who were admitted to the medical intensive care unit (ICU) at a tertiary care hospital from January 2005 to December 2010. ARDS was determined using the Berlin definition. The primary outcome was the mortality rate of ICU. Survival analysis was performed after adjustment using propensity score matching. Results A total of 182 patients were included in the study. Thirty-seven patients (20.3%) took ACE inhibitor or angiotensin receptor blocker (ARB) during ICU admission, and 145 (79.7%) did not; both groups showed similar severity scores. In the ICU, mortality was 45.9% in the RAS inhibitor group and 58.6% in the non-RAS inhibitor group (P = 0.166). The RAS inhibitor group required a longer duration of mechanical ventilation (29.5 vs. 19.5, P = 0.013) and longer ICU stay (32.1 vs. 20.2 days, P < 0.001). In survival analysis, the RAS inhibitor group showed better survival rates than the non-RAS group (P < 0.001). Conclusions ACE inhibitor or ARB may have beneficial effect on ARDS patients.
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Affiliation(s)
- Joohae Kim
- Center for Lung Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Korea
| | - Sun Mi Choi
- Seoul National University Hospital and Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Jinwoo Lee
- Seoul National University Hospital and Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Young Sik Park
- Seoul National University Hospital and Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Chang Hoon Lee
- Seoul National University Hospital and Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Jae-Joon Yim
- Seoul National University Hospital and Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Chul-Gyu Yoo
- Seoul National University Hospital and Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Young Whan Kim
- Seoul National University Hospital and Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Sung Koo Han
- Seoul National University Hospital and Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Sang-Min Lee
- Seoul National University Hospital and Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
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Pretreatment with the ALDH2 agonist Alda-1 reduces intestinal injury induced by ischaemia and reperfusion in mice. Clin Sci (Lond) 2017; 131:1123-1136. [PMID: 28325855 PMCID: PMC5434792 DOI: 10.1042/cs20170074] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Revised: 03/05/2017] [Accepted: 03/20/2017] [Indexed: 12/20/2022]
Abstract
Many studies demonstrate that activation of aldehyde dehydrogenase 2 (ALDH2) protects against oxidative stress via detoxification of cytotoxic aldehydes, and could attenuate cardiac, cerebral, lung and renal ischaemia-reperfusion (I/R) injuries. However, the effect of ALDH2 in intestinal I/R is unknown. The present study was set up to determine whether an ALDH2 agonist, Alda-1, could alleviate intestinal injury after gut I/R. In a mouse model of intestinal I/R injury, histological grading, proinflammatory cytokines, oxidative stress, cellular apoptosis, chemokine contents, ALDH2 activity, 4-hydroxy-trans-2-nonenal (4-HNE) and malondialdehyde (MDA) were evaluated. The results indicated that I/R treatment conferred elevation in pathological scores, proinflammatory cytokines, oxidative stress, cellular apoptosis and chemokine levels, accompanied by accumulated 4-HNE and MDA. No significant changes in ALDH2 activity were observed after I/R. However, Alda-1 pretreatment significantly decreased these injurious indicators, concomitant with up-regulated ALDH2 activity, and lessened 4-HNE and MDA accumulation. Taken together, our results implicate activation of ALDH2 by Alda-1 in the significant abatement intestinal I/R injury.
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Karcioglu SS, Palabiyik SS, Bayir Y, Karakus E, Mercantepe T, Halici Z, Albayrak A. The Role of RAAS Inhibition by Aliskiren on Paracetamol-Induced Hepatotoxicity Model in Rats. J Cell Biochem 2015; 117:638-46. [DOI: 10.1002/jcb.25313] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 08/13/2015] [Indexed: 12/19/2022]
Affiliation(s)
| | - Saziye Sezin Palabiyik
- Department of Pharmaceutical Toxicology; Faculty of Pharmacy; Ataturk University; Erzurum Turkey
| | - Yasin Bayir
- Department of Biochemistry; Faculty of Pharmacy; Ataturk University; Erzurum Turkey
| | - Emre Karakus
- Department of Pharmacology and Toxicology; Faculty of Veterinary Medicine; Ataturk University; Erzurum Turkey
| | - Tolga Mercantepe
- Department of Histology and Embryology, Faculty of Medicine; Recep Tayyip Erdogan University; Rize Turkey
| | - Zekai Halici
- Department of Pharmacology; Faculty of Medicine; Ataturk University; Erzurum Turkey
| | - Abdulmecit Albayrak
- Department of Pharmacology; Faculty of Medicine; Ataturk University; Erzurum Turkey
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Abstract
The unique characteristics of pulmonary circulation and alveolar-epithelial capillary-endothelial barrier allow for maintenance of the air-filled, fluid-free status of the alveoli essential for facilitating gas exchange, maintaining alveolar stability, and defending the lung against inhaled pathogens. The hallmark of pathophysiology in acute respiratory distress syndrome is the loss of the alveolar capillary permeability barrier and the presence of protein-rich edema fluid in the alveoli. This alteration in permeability and accumulation of fluid in the alveoli accompanies damage to the lung epithelium and vascular endothelium along with dysregulated inflammation and inappropriate activity of leukocytes and platelets. In addition, there is uncontrolled activation of coagulation along with suppression of fibrinolysis and loss of surfactant. These pathophysiological changes result in the clinical manifestations of acute respiratory distress syndrome, which include hypoxemia, radiographic opacities, decreased functional residual capacity, increased physiologic deadspace, and decreased lung compliance. Resolution of acute respiratory distress syndrome involves the migration of cells to the site of injury and re-establishment of the epithelium and endothelium with or without the development of fibrosis. Most of the data related to acute respiratory distress syndrome, however, originate from studies in adults or in mature animals with very few studies performed in children or juvenile animals. The lack of studies in children is particularly problematic because the lungs and immune system are still developing during childhood and consequently the pathophysiology of pediatric acute respiratory distress syndrome may differ in significant ways from that seen in acute respiratory distress syndrome in adults. This article describes what is known of the pathophysiologic processes of pediatric acute respiratory distress syndrome as we know it today while also presenting the much greater body of evidence on these processes as elucidated by adult and animal studies. It is also our expressed intent to generate enthusiasm for larger and more in-depth investigations of the mechanisms of disease and repair specific to children in the years to come.
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Angiotensins as therapeutic targets beyond heart disease. Trends Pharmacol Sci 2015; 36:310-20. [DOI: 10.1016/j.tips.2015.03.001] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 02/26/2015] [Accepted: 03/03/2015] [Indexed: 02/06/2023]
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Deng X, Zhang S, Jin K, Li L, Gu W, Liu M, Zhou L. Angiotensin-converting enzyme I/D polymorphism and acute respiratory distress syndrome. J Renin Angiotensin Aldosterone Syst 2015; 16:780-6. [PMID: 25869723 DOI: 10.1177/1470320315576255] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 12/03/2014] [Indexed: 11/17/2022] Open
Affiliation(s)
- Xingqi Deng
- Department of Emergency Medicine, The Central Hospital of Minhang District, Shanghai, China
| | - Shaokun Zhang
- Department of Respiratory Medicine, Second People’s Hospital of Weifang, Weifang, Shandong, China
| | - Kun Jin
- Department of Emergency Medicine, The Central Hospital of Minhang District, Shanghai, China
| | - Lanyan Li
- Department of Emergency Medicine, The Central Hospital of Minhang District, Shanghai, China
| | - Wei Gu
- Department of Emergency Medicine, The Central Hospital of Minhang District, Shanghai, China
| | - Mei Liu
- Department of Emergency Medicine, The Central Hospital of Minhang District, Shanghai, China
| | - Ling Zhou
- Department of Emergency Medicine, The Central Hospital of Minhang District, Shanghai, China
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Ziypak T, Halici Z, Alkan E, Akpinar E, Polat B, Adanur S, Cadirci E, Ferah I, Bayir Y, Karakus E, Mercantepe T. Renoprotective effect of aliskiren on renal ischemia/reperfusion injury in rats: electron microscopy and molecular study. Ren Fail 2014; 37:343-54. [DOI: 10.3109/0886022x.2014.991327] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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Zhang X, Chen Y, Wei H, Qin Y, Hao Y, Zhu Y, Deng F, Guo X. Ultrafine carbon black attenuates the antihypertensive effect of captopril in spontaneously hypertensive rats. Inhal Toxicol 2014; 26:853-60. [DOI: 10.3109/08958378.2014.965558] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Liu X, Yang N, Tang J, Liu S, Luo D, Duan Q, Wang X. Downregulation of angiotensin-converting enzyme 2 by the neuraminidase protein of influenza A (H1N1) virus. Virus Res 2014; 185:64-71. [PMID: 24662240 PMCID: PMC7114376 DOI: 10.1016/j.virusres.2014.03.010] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Revised: 02/26/2014] [Accepted: 03/11/2014] [Indexed: 11/26/2022]
Abstract
We investigated the ACE2 levels after infection with influenza A (H1N1) virus. Influenza infection results in downregulation of ACE2 protein levels that was dispensable for viral replication. ACE2 downregulation was most likely related to ACE2 protein degradation by proteasome pathway rather than ACE2 shedding. The neuraminidase of influenza virion results in ACE2 cleavage.
Influenza A (H1N1) virus, a high-risk infectious pathogen, can cause severe acute lung injury leading to significant morbidity and mortality. Angiotensin-converting enzyme 2 (ACE2), a negative regulator of the renin-angiotensin system (RAS), plays a protective role in pathogenesis of acute lung injury. Here, we showed that ACE2 protein levels were significantly downregulated after infection with H1N1 viruses but was dispensable for viral replication. ACE2 protein downregulation was most likely related to ACE2 protein degradation by proteasome pathway rather than ACE2 shedding. Finally, we found that ACE2 cleavage could be regulated by influenza neuraminidase (NA), which was fundamentally different from the classically sheddase-induced proteolytic cleavage of ACE2.
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Affiliation(s)
- Xin Liu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China.
| | - Ning Yang
- Laboratory of Viral Diseases, NIAID, Bethesda, MD 20892, USA
| | - Jun Tang
- Institute of Basic Medical Sciences, Peking Union Medical College, Beijing 100005, China
| | - Song Liu
- Institute of Basic Medical Sciences, Peking Union Medical College, Beijing 100005, China
| | - Deyan Luo
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Qing Duan
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Xiliang Wang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
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Grek CL, Rhett JM, Ghatnekar GS. Cardiac to cancer: connecting connexins to clinical opportunity. FEBS Lett 2014; 588:1349-64. [PMID: 24607540 DOI: 10.1016/j.febslet.2014.02.047] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Revised: 02/25/2014] [Accepted: 02/26/2014] [Indexed: 12/26/2022]
Abstract
Gap junctions and their connexin components are indispensable in mediating the cellular coordination required for tissue and organ homeostasis. The critical nature of their existence mandates a connection to disease while at the same time offering therapeutic potential. Therapeutic intervention may be offered through the pharmacological and molecular disruption of the pathways involved in connexin biosynthesis, gap junction assembly, stabilization, or degradation. Chemical inhibitors aimed at closing connexin channels, peptide mimetics corresponding to short connexin sequences, and gene therapy approaches have been incredibly useful molecular tools in deciphering the complexities associated with connexin biology. Recently, therapeutic potential in targeting connexins has evolved from basic research in cell-based models to clinical opportunity in the form of human trials. Clinical promise is particularly evident with regards to targeting connexin43 in the context of wound healing. The following review is aimed at highlighting novel advances where the pharmacological manipulation of connexin biology has proven beneficial in animals or humans.
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Affiliation(s)
- Christina L Grek
- FirstString Research, Inc., 300 W. Coleman Blvd., Suite 203, Mount Pleasant, SC, United States
| | - J Matthew Rhett
- Department of Surgery, Division of General Surgery, Medical University of South Carolina, Charleston, SC, United States
| | - Gautam S Ghatnekar
- FirstString Research, Inc., 300 W. Coleman Blvd., Suite 203, Mount Pleasant, SC, United States.
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Abstract
OBJECTIVES Diabetes has been associated with decreased development of acute respiratory distress syndrome in some, but not all, previous studies. Therefore, we examined the relationship between diabetes and development of acute respiratory distress syndrome and whether this association was modified by type of diabetes, etiology of acute respiratory distress syndrome, diabetes medications, or other potential confounders. DESIGN Observational prospective multicenter study. SETTING Four adult ICUs at two tertiary academic medical centers. PATIENTS Three thousand eight hundred sixty critically ill patients at risk for acute respiratory distress syndrome from sepsis, pneumonia, trauma, aspiration, or massive transfusion. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Diabetes history was present in 25.8% of patients. Diabetes was associated with lower rates of developing acute respiratory distress syndrome on univariate (odds ratio, 0.79; 95% CI, 0.66-0.94) and multivariate analysis (adjusted odds ratio, 0.76; 95% CI, 0.61-0.95). After including diabetes medications into the model, diabetes remained protective (adjusted odds ratio, 0.75; 95% CI, 0.59-0.94). Diabetes was associated with decreased development of acute respiratory distress syndrome both in the subgroup of patients with sepsis (adjusted odds ratio, 0.77; 95% CI, 0.61-0.97) and patients with noninfectious etiologies (adjusted odds ratio, 0.30; 95% CI, 0.10-0.90). The protective effect of diabetes on acute respiratory distress syndrome development is not clearly restricted to either type 1 (adjusted odds ratio, 0.50; 95% CI, 0.26-0.99; p = 0.046) or type 2 (adjusted odds ratio, 0.77; 95% CI, 0.60-1.00; p = 0.050) diabetes. Among patients in whom acute respiratory distress syndrome developed, diabetes was not associated with 60-day mortality on univariate (odds ratio, 1.11; 95% CI, 0.80-1.52) or multivariate analysis (adjusted odds ratio, 0.81; 95% CI, 0.56-1.18). CONCLUSIONS Diabetes is associated with a lower rate of acute respiratory distress syndrome development, and this relationship remained after adjusting for clinical differences between diabetics and nondiabetics, such as obesity, acute hyperglycemia, and diabetes-associated medications. In addition, this association was present for type 1 and 2 diabetics and in all subgroups of at-risk patients.
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Salman AE, Yetişir F, Kılıç M, Onal O, Dostbil A, Zeybek D, Aksoy M, Kaymak F, Celik T, Unver S. The impact of pretreatment with bolus dose of enteral glutamine on acute lung injury induced by oleic acid in rats. J Anesth 2013; 28:354-62. [PMID: 24271996 DOI: 10.1007/s00540-013-1745-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Accepted: 10/30/2013] [Indexed: 01/29/2023]
Abstract
PURPOSE Both parenteral and enteral glutamine have shown beneficial effects in sepsis and ischemia/reperfusion-induced acute lung injury (ALI). Oleic acid (OA) has been used to induce ALI in experimental studies. In this study, we investigated the effects of pretreatment of a bolus dose of enteral glutamine on ALI induced by OA in rats. METHODS Twenty-eight adult female Sprague-Dawley rats weighing 240-300 g were divided into four groups, 7 in each. Group I and group II received normal saline for 30 days, group III and group IV received glutamine at a dose of 1 g/kg for 10 days by gavage, and in group II and group IV 100 mg/kg OA was administered i.v. Histopathological examination of the lung was performed with light and electron microscopy. Levels of protein carbonyl, malondialdehyde, superoxide dismutase, catalase, and glutathione peroxidase levels were measured in tissue samples. Levels of tumor necrosis factor (TNF)-α, interleukin (IL)-6, IL-10, and total tissue oxidant status and total tissue antioxidant status were measured in serum samples. RESULTS Light microscopy showed that the total lung injury score of group IV was significantly lower than group II. Change in thickness of the fused basal lamina was not significantly different in groups II and IV under electron microscopy. TNF-α, IL-6, and IL-10 serum levels were higher in group II when compared to group I and significantly attenuated in group IV. CONCLUSION Pretreatment with a bolus dose of enteral glutamine minimized the extent of ALI induced by OA in rats.
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Affiliation(s)
- A Ebru Salman
- Anesthesiology and Reanimation Department, Atatürk Research and Training Hospital, Ankara, Turkey
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Dysregulated Renin-AngioteNsin System Contributes to acute Lung Injury Caused by Hind-limb Ischemia-Reperfusion in Mice. Shock 2013; 40:420-9. [DOI: 10.1097/shk.0b013e3182a6953e] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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40
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Hermanns MI, Müller AM, Tsokos M, Kirkpatrick CJ. LPS-induced effects on angiotensin I-converting enzyme expression and shedding in human pulmonary microvascular endothelial cells. In Vitro Cell Dev Biol Anim 2013; 50:287-95. [PMID: 24165975 DOI: 10.1007/s11626-013-9707-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2013] [Accepted: 10/10/2013] [Indexed: 12/15/2022]
Abstract
Angiotensin I-converting enzyme (kininase II, ACE, and CD143) availability is a determinant of local angiotensin and kinin concentrations and their physiological actions. Until now, it is unclear whether the decrease of pulmonary ACE activity in sepsis-described in clinical studies-is due to an enzyme compensatory downregulation (reduced ACE-mRNA expression) to shedding of ACE or endothelial damage. To address these questions, ACE distribution under septic conditions was studied in vitro by treating pulmonary microvascular endothelial cells (HPMEC) and human umbilical vein endothelial cells (HUVEC) with lipopolysaccharide from Escherichia coli (LPS). Primary isolated HUVEC and HPMEC were compared by detecting ACE activity, membrane-bound ACE, as well as shedding and mRNA production of ACE with and without LPS (1 ng/ml-1 μg/ml). ACE mRNA expression was detected by real-time PCR, and shedded ACE was measured in cell culture supernatant by ELISA. Additionally, membrane-bound protein expression was investigated by immunohistochemistry in situ. In septic ARDS, the distribution of ACE protein was significantly reduced in all lung endothelial cells (p<0.001). After stimulation with LPS, cultivated HPMEC showed more markedly than HUVEC, a concentration-dependent reduction of ACE protein expression compared to the respective untreated controls. Real-time PCR demonstrated a reduced ACE mRNA expression after LPS stimulation, predominantly in HPMEC. Specifically, in HPMEC, a concentration-dependent increase of shedded ACE was shown 24 h after LPS treatment. HPMEC cultures are an apt model for the investigation of pulmonary ACE expression in sepsis. This study suggests that reduced pulmonary microvascular endothelial ACE expression in septic ARDS is caused by two processes: (initial) increased shedding of ACE accompanied by a compensatory downregulation of ACE-mRNA and membrane-bound protein expression.
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Affiliation(s)
- M I Hermanns
- IKFE GmbH, Cell Biology, Parcusstr. 6, 55116, Mainz, Germany,
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Abstract
OBJECTIVE The objective of this study was to analyze the association between candidate gene polymorphisms and susceptibility to acute respiratory distress syndrome (ARDS) in patients with severe sepsis. METHODS Patients older than 18 years admitted to the intensive care unit (ICU) with the diagnosis of severe sepsis were prospectively included. A blood sample was drawn on the first day of ICU admission, and DNA was extracted. We genotyped the insertion/deletion polymorphism of the angiotensin-converting enzyme (ACE) gene (polymerase chain reaction) and the following single-nucleotide polymorphisms (TaqMan SNP genotyping assay): tumor necrosis factor α -376 G/A, -308 G/A, and -238 G/A; interleukin 8 -251 T/A; pre-B cell colony-enhancing factor -1001 G/T; and vascular endothelial growth factor +405 C/G and +936 C/T. Polymorphisms were selected based on reports on their association with ARDS. Variables associated in univariate analysis (P < 0.1) with the diagnosis of ARDS were included in a multiple logistic regression analysis. RESULTS We studied 149 patients, of whom 35 presented ARDS. Variables included in the maximal multivariate model were male sex, chronic alcoholism, use of ACE inhibitors or angiotensin-receptor blockers, Simplified Acute Physiology Score II score, serum glucose concentration at ICU admission, and the presence of the allele D of the ACE gene. After adjustment for those variables, the presence of the allele D of the ACE gene (odds ratio, 4.75; 95% confidence interval, 1.02-22.20; P = 0.048) was significantly associated with the diagnosis of ARDS. CONCLUSION The presence of the allele D of the ACE gene is associated with ARDS in patients with severe sepsis.
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Angiotensin-converting enzyme inhibitor/angiotensin II receptor blockers and pneumonia risk among stroke patients. J Hypertens 2012; 30:2223-9. [DOI: 10.1097/hjh.0b013e328357a87a] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Fouad AA, Al-Mulhim AS, Jresat I, Morsy MA. Protective effects of captopril in diabetic rats exposed to ischemia/reperfusion renal injury. J Pharm Pharmacol 2012; 65:243-52. [DOI: 10.1111/j.2042-7158.2012.01585.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Accepted: 08/05/2012] [Indexed: 01/31/2023]
Abstract
Abstract
Objectives
To investigate the potential protective effects of captopril, the angiotensin-converting enzyme inhibitor, in diabetic rats exposed to ischaemia/reperfusion (I/R) renal injury.
Methods
Following successful induction of diabetes, captopril treatment (50 mg/kg/day, p.o.) was applied for 4 weeks, after which bilateral renal ischaemia was induced for 30 min followed by reperfusion for 24 h.
Results
Captopril significantly attenuated hyperglycaemia and hypoinsulinaemia in diabetic rats, and significantly reduced the elevations of serum creatinine and aldosterone levels, and renal malondialdehyde, tumour necrosis factor-α and nitric oxide (NO), and prevented the depletion of reduced glutathione caused by I/R in diabetic rats. Histopathological renal tissue damage induced by I/R in diabetic rats was ameliorated by captopril treatment. Immunohistochemical analysis revealed that captopril significantly attenuated the reduction of insulin content in pancreatic islet β-cells, and decreased the I/R-induced expression of inducible NO synthase, nuclear factor-κB, Fas ligand and caspase-3, and increased the expression of survivin and heme oxygenase-1 in the kidney tissue of diabetic rats.
Conclusions
Captopril represents a potential candidate to reduce the risk of renal injury induced by ischaemia/reperfusion in type 2 diabetes.
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Affiliation(s)
- Amr A Fouad
- Department of Biomedical Sciences, Pharmacology Division, College of Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
| | | | - Iyad Jresat
- Department of Biomedical Sciences, Pathology Division, College of Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Mohamed A Morsy
- Department of Pharmaceutical Sciences, Pharmacology Division, College of Clinical Pharmacy, King Faisal University, Al-Ahsa, Saudi Arabia
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Matsuda A, Kishi T, Jacob A, Aziz M, Wang P. Association between insertion/deletion polymorphism in angiotensin-converting enzyme gene and acute lung injury/acute respiratory distress syndrome: a meta-analysis. BMC MEDICAL GENETICS 2012; 13:76. [PMID: 22938636 PMCID: PMC3459791 DOI: 10.1186/1471-2350-13-76] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2011] [Accepted: 08/09/2012] [Indexed: 01/11/2023]
Abstract
BACKGROUND A previous meta-analysis reported a positive association between an insertion/deletion (I/D) polymorphism in the angiotensin-converting enzyme gene (ACE) and the risk of acute lung injury (ALI)/acute respiratory distress syndrome (ARDS). Here, we updated this meta-analysis and additionally assessed the association of this polymorphism with ALI/ARDS mortality. METHODS We searched electronic databases through October 2011 for the terms "angiotensin-converting enzyme gene", "acute lung injury", and "acute respiratory distress syndrome," and reviewed all studies that reported the relationship of the I/D polymorphism in ACE with ALI/ARDS in humans. Seven studies met the inclusion criteria, comprising 532 ALI/ARDS patients, 3032 healthy controls, and 1432 patients without ALI/ARDS. We used three genetic models: the allele, dominant, and recessive models. RESULTS The ACE I/D polymorphism was not associated with susceptibility to ALI/ARDS for any genetic model. However, the ACE I/D polymorphism was associated with the mortality risk of ALI/ARDS in Asian subjects ( P(allele) < 0.0001, P(dominant) = 0.001, P(recessive) = 0.002). This finding remained significant after correction for multiple comparisons. CONCLUSIONS There is a possible association between the ACE I/D polymorphism genotype and the mortality risk of ALI/ARDS in Asians.
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Affiliation(s)
- Akihisa Matsuda
- Department of Surgery, Hofstra North Shore-LIJ School of Medicine, 350 Community Drive, Manhasset, NY 11030, USA
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Koh GCKW, Vlaar APJ, Hofstra JJ, de Jong HK, van Nierop S, Peacock SJ, Wiersinga WJ, Schultz MJ, Juffermans NP. In the critically ill patient, diabetes predicts mortality independent of statin therapy but is not associated with acute lung injury: a cohort study. Crit Care Med 2012; 40:1835-43. [PMID: 22488007 PMCID: PMC3379571 DOI: 10.1097/ccm.0b013e31824e1696] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVES Patients with diabetes mellitus form 23%-30% of published cohorts of critically ill patients. Conflicting published evidence links diabetes mellitus to both higher and lower mortality. Other cohort studies suggest that diabetes mellitus protects against acute lung injury. We hypothesized that diabetes mellitus is an independent risk factor for mortality. We further hypothesized that diabetes mellitus is a risk factor for cardiac overload and not for acute lung injury. DESIGN Retrospective cohort study. SETTING The intensive care unit of a tertiary referral hospital. PATIENTS From November 1, 2004, to October 1, 2007, a cohort of patients admitted ≥48 hrs to the intensive care unit. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Of 2,013 patients, 317 had diabetes mellitus. Ninety-day mortality was higher in the diabetes mellitus patients compared to patients without diabetes mellitus (hazard ratio 1.53, 95% confidence interval 1.29-1.80). This association strengthened after adjusting for confounders and for medication (hazard ratio 1.53, 95% confidence interval 1.07-2.17).We found no association between diabetes mellitus and acute lung injury (relative risk ratio 1.01, 95% confidence interval 0.78-1.32; adjusted relative risk ratio 0.99, 95% confidence interval 0.75-1.31), but diabetes mellitus was a risk factor for cardiac overload (relative risk ratio 1.91, 95% confidence interval 1.30-2.81; adjusted relative risk ratio 1.45, 95% confidence interval 0.97-2.18). Statins were associated with both a reduced risk of mortality (hazard ratio 0.74, 95% confidence interval 0.63-0.87; adjusted hazard ratio 0.53, 95% confidence interval 0.44-0.64) and a decreased risk of developing acute lung injury (relative risk ratio 0.71, 95% confidence interval 0.56-0.89; adjusted relative risk ratio 0.61, 95% confidence interval 0.47-0.79). CONCLUSIONS Diabetes mellitus is an independent risk factor for mortality in critically ill patients and failure to adjust for statins underestimates the size of this association. Diabetes mellitus is not associated with acute lung injury but is associated with cardiac overload. A diagnosis of cardiac overload excludes a diagnosis of acute lung injury. Investigators who do not account for cardiac overload as a competing alternative outcome may therefore falsely conclude that diabetes mellitus protects from acute lung injury.
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Abstract
The renin-angiotensin system (RAS) is a powerful biological system that plays an important role in regulation of systemic blood pressure through the maintenance of fluid and salt homeostasis. It is a multifactorial system since it includes different components (Fig. 1): The first, renin, was discovered in 1898 [1], whereas the discovery of the last component, angiotensin-converting enzyme 2 (ACE 2), is relatively recent, from 2000 [2, 3]. Three kinds of RAS are known: A) circulating, B) local, and C) intracellular.
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Fouad AA, Jresat I. Captopril and telmisartan treatments attenuate cadmium-induced testicular toxicity in rats. Fundam Clin Pharmacol 2011; 27:152-60. [DOI: 10.1111/j.1472-8206.2011.00974.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Mitigating Effects of Captopril and Losartan on Lung Histopathology in a Rat Model of Fat Embolism. ACTA ACUST UNITED AC 2011; 70:1186-91. [DOI: 10.1097/ta.0b013e3181e50df6] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Bosma KJ, Taneja R, Lewis JF. Pharmacotherapy for prevention and treatment of acute respiratory distress syndrome: current and experimental approaches. Drugs 2010; 70:1255-82. [PMID: 20568833 PMCID: PMC7100688 DOI: 10.2165/10898570-000000000-00000] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The acute respiratory distress syndrome (ARDS) arises from direct and indirect injury to the lungs and results in a life-threatening form of respiratory failure in a heterogeneous, critically ill patient population. Critical care technologies used to support patients with ARDS, including strategies for mechanical ventilation, have resulted in improved outcomes in the last decade. However, there is still a need for effective pharmacotherapies to treat ARDS, as mortality rates remain high. To date, no single pharmacotherapy has proven effective in decreasing mortality in adult patients with ARDS, although exogenous surfactant replacement has been shown to reduce mortality in the paediatric population with ARDS from direct causes. Several promising therapies are currently being investigated in preclinical and clinical trials for treatment of ARDS in its acute and subacute, exudative phases. These include exogenous surfactant therapy, β2-adrenergic receptor agonists, antioxidants, immunomodulating agents and HMG-CoA reductase inhibitors (statins). Recent research has also focused on prevention of acute lung injury and acute respiratory distress in patients at risk. Drugs such as captopril, rosiglitazone and incyclinide (COL-3), a tetracycline derivative, have shown promising results in animal models, but have not yet been tested clinically. Further research is needed to discover therapies to treat ARDS in its late, fibroproliferative phase. Given the vast number of negative clinical trials to date, it is unlikely that a single pharmacotherapy will effectively treat all patients with ARDS from differing causes. Future randomized controlled trials should target specific, more homogeneous subgroups of patients for single or combination therapy.
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Affiliation(s)
- Karen J Bosma
- Department of Medicine, Division of Respirology, The University of Western Ontario, London, Ontario, Canada.
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Losartan prevents sepsis-induced acute lung injury and decreases activation of nuclear factor kappaB and mitogen-activated protein kinases. Shock 2009; 31:500-6. [PMID: 18827741 DOI: 10.1097/shk.0b013e318189017a] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Lack of specific and efficient therapy leads to the high mortality rate of acute lung injury (ALI) and acute respiratory distress syndrome (ARDS). Losartan is a potent pharmaceutical drug for ALI/ARDS. However, the protective effects and mechanisms of losartan remain incompletely known. This study evaluates the effects of losartan on ALI/ARDS and further investigates the possible mechanisms of these protective effects. Mice received i.p. injections of the AT1 inhibitor losartan (15 mg/kg), or control vehicle, half hour after cecal ligation and puncture (CLP). Plasma TNF-alpha, IL-1beta, and IL-6 cytokines were assayed 6 h after CLP. Blood gas, wet/dry lung weight ratio, lung tissue histology for occurrence of ALI/ARDS, and survival were examined. Lastly, nuclear factor kappaB (NF-kappaB) activations, IkappaB-alpha degradations, phosphorylations of p38 MAPK, extracellular signal-regulated kinase 1/2, and c-Jun N-terminal kinase expressions were evaluated in lung tissue. Losartan treatment significantly attenuated TNF-alpha, IL-6, and IL-1beta 6 h after CLP. Furthermore, losartan prevented blood gas and histopathologic appearance of ALI/ARDS after sepsis and significantly improved survival. Finally, losartan given after sepsis led to inhibition of lung tissue NF-kappaB activation (P < 0.01 vs. CLP group), attenuated degradation of IkappaB-alpha, and inhibited phosphorylation of p38MAPK, extracellular signal-regulated kinase 1/2, and c-Jun N-terminal kinase, pathways critical for cytokine release. These data reveal that losartan exerts a protective effect on ALI/ARDS, and this protective effect may be dependent, at least in part, on NF-kappaB and MAPK mechanisms.
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