101
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Zhan GF, Wang Y, Yang N, Luo AL, Li SY. Digestive system involvement of infections with SARS-CoV-2 and other coronaviruses: Clinical manifestations and potential mechanisms. World J Gastroenterol 2021; 27:561-575. [PMID: 33642829 PMCID: PMC7901047 DOI: 10.3748/wjg.v27.i7.561] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 12/28/2020] [Accepted: 01/13/2021] [Indexed: 02/06/2023] Open
Abstract
Although coronavirus (CoV) infection is often characterized by respiratory symptoms, the virus can also result in extrapulmonary symptoms, especially the symptoms related to the digestive system. The outbreak of coronavirus disease 2019 (COVID-19) is currently the world’s most pressing public health threat and has a significant impact on civil societies and the global economy. The occurrence of digestive symptoms in patients with COVID-19 is closely related to the development and prognosis of the disease. Moreover, thus far, there are no specific antiviral drug or vaccine approved for the treatment or prevention of COVID-19. Therefore, we elaborate on the effects of CoVs on the digestive system and the potential underlying mechanisms.
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Affiliation(s)
- Gao-Feng Zhan
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Yue Wang
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Ning Yang
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Ai-Lin Luo
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Shi-Yong Li
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
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102
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Kratky V, Vanourkova Z, Sykora M, Bacova BS, Hruskova Z, Kikerlova S, Huskova Z, Kopkan L. AT 1 receptor blocker, but not an ACE inhibitor, prevents kidneys from hypoperfusion during congestive heart failure in normotensive and hypertensive rats. Sci Rep 2021; 11:4271. [PMID: 33608612 PMCID: PMC7896062 DOI: 10.1038/s41598-021-83906-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 02/08/2021] [Indexed: 12/22/2022] Open
Abstract
To provide novel insights into the pathogenesis of heart failure-induced renal dysfunction, we compared the effects of ACE inhibitor (ACEi) and AT1 receptor blocker (ARB) on systemic and kidney hemodynamics during heart failure in normotensive HanSD and hypertensive transgenic (TGR) rats. High-output heart failure was induced by creating an aorto-caval fistula (ACF). After five weeks, rats were either left untreated or treatment with ACEi or ARB was started for 15 weeks. Subsequently, echocardiographic, renal hemodynamic and biochemical measurements were assessed. Untreated ACF rats with ACF displayed significantly reduced renal blood flow (RBF) (HanSD: 8.9 ± 1.0 vs. 4.7 ± 1.6; TGR: 10.2 ± 1.9 vs. 5.9 ± 1.2 ml/min, both P < .001), ACEi had no major RBF effect, whereas ARB completely restored RBF (HanSD: 5.6 ± 1.1 vs. 9.0 ± 1.5; TGR: 7.0 ± 1.2 vs. 10.9 ± 1.9 ml/min, both P < .001). RBF reduction in untreated and ACEi-treated rats was accompanied by renal hypoxia as measured by renal lactate dehydrogenase activity, which was ameliorated with ARB treatment (HanSD: 40 ± 4 vs. 42 ± 3 vs. 29 ± 5; TGR: 88 ± 4 vs. 76 ± 4 vs. 58 ± 4 milliunits/mL, all P < .01). Unlike improvement seen in ARB-treated rats, ACE inhibition didn’t affect urinary nitrates compared to untreated ACF TGR rats (50 ± 14 vs. 22 ± 13 vs. 30 ± 13 μmol/mmol Cr, both P < .05). ARB was more effective than ACEi in reducing elevated renal oxidative stress following ACF placement. A marker of ACEi efficacy, the angiotensin I/angiotensin II ratio, was more than ten times lower in renal tissue than in plasma. Our study shows that ARB treatment, in contrast to ACEi administration, prevents renal hypoperfusion and hypoxia in ACF rats with concomitant improvement in NO bioavailability and oxidative stress reduction. The inability of ACE inhibition to improve renal hypoperfusion in ACF rats may result from incomplete intrarenal RAS suppression in the face of depleted compensatory mechanisms.
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Affiliation(s)
- Vojtech Kratky
- Center for Experimental Medicine, Institute for Clinical and Experimental Medicine, 1958/9 Videnska, 14000, Prague 4, Czech Republic. .,Department of Pathophysiology, 2nd Faculty of Medicine, Charles University, Prague, Czech Republic. .,Department of Nephrology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic.
| | - Zdenka Vanourkova
- Center for Experimental Medicine, Institute for Clinical and Experimental Medicine, 1958/9 Videnska, 14000, Prague 4, Czech Republic
| | - Matus Sykora
- Institute for Heart Research, Centre of Experimental Medicine, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Barbara Szeiffova Bacova
- Institute for Heart Research, Centre of Experimental Medicine, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - Zdenka Hruskova
- Department of Nephrology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Sona Kikerlova
- Center for Experimental Medicine, Institute for Clinical and Experimental Medicine, 1958/9 Videnska, 14000, Prague 4, Czech Republic
| | - Zuzana Huskova
- Center for Experimental Medicine, Institute for Clinical and Experimental Medicine, 1958/9 Videnska, 14000, Prague 4, Czech Republic
| | - Libor Kopkan
- Center for Experimental Medicine, Institute for Clinical and Experimental Medicine, 1958/9 Videnska, 14000, Prague 4, Czech Republic
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103
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Gómez-Mendoza DP, Lara-Ribeiro AC, Verano-Braga T. Pathological cardiac remodeling seen by the eyes of proteomics. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2021; 1869:140622. [PMID: 33607275 DOI: 10.1016/j.bbapap.2021.140622] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 01/29/2021] [Accepted: 02/02/2021] [Indexed: 12/26/2022]
Abstract
Cardiac remodeling involves cellular and structural changes that occur as consequence of multifactorial events to maintain the homeostasis. The progression of pathological cardiac remodeling involves a transition from adaptive to maladaptive changes that eventually leads to impairment of ventricular function and heart failure. In this scenario, proteins are key elements that orchestrate molecular events as increased expression of fetal genes, neurohormonal and second messengers' activation, contractile dysfunction, rearrangement of the extracellular matrix and alterations in heart geometry. Mass spectrometry based-proteomics has emerged as a sound method to study protein dysregulation and identification of cardiac diseases biomarkers in plasma. In this review, we summarize the main findings related to large-scale proteome modulation of cardiac cells and extracellular matrix occurred during pathological cardiac remodeling. We describe the recent proteomic progresses in the selection of protein targets and introduce the renin-angiotensin system as an interesting target for the treatment of pathological cardiac remodeling.
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Affiliation(s)
- Diana Paola Gómez-Mendoza
- Departamento de Fisiologia e Biofísica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte 31270-901, Brazil
| | - Ana Carolina Lara-Ribeiro
- Departamento de Fisiologia e Biofísica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte 31270-901, Brazil
| | - Thiago Verano-Braga
- Departamento de Fisiologia e Biofísica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte 31270-901, Brazil.
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104
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Parsamanesh N, Pezeshgi A, Hemmati M, Jameshorani M, Saboory E. Neurological manifestations of coronavirus infections: role of angiotensin-converting enzyme 2 in COVID-19. Int J Neurosci 2021; 132:917-924. [PMID: 33175635 DOI: 10.1080/00207454.2020.1849193] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
AIM OF THE STUDY In December 2019, a highly pathogenic coronavirus called SARS-CoV-2 (formerly identified as 2019-nCoV) appeared in Wuhan, China, and has since been spreading rapidly around the world. we reviewed the neurological manifestations of this infection and the potential of ACE2 in the nervous system. MATERIALS AND METHODS Six databases (Medline, Scopus, Embase, Web of Science, WHO, and google scholar) were searched and screened by the authors for having appropriate information about covid-19. Finally, 72 studies were identified, summarized and reviewed. RESULT The most specific manifestation of SARS-CoV-2 patients is pulmonary distress, and several patients admitted to intensive care units were not able to breathe spontaneously. In addition, the SARS-CoV-2 outbreak has a significant effect on nervous systems and may even lead to serious neurological damage. The neuroinvasive pathobiology is still not fully elucidated and thus the effect of CoV infections on the nervous system needs to be explored. The spike protein of the virus and the angiotensin-converting enzyme 2 (ACE2) lead to the presence of both SARS-CoV and SARS-CoV-2 in the cells and, subsequently, decreased ACE2 expression. CONCLUSION The therapeutic possibilities of ACE2 antibody, ACE2-derived peptides, and small molecule blockers of ACE2 include a receptor-binding domain blocking approach. Hence, future studies of ACE2 may be very helpful in discovering a therapy for SARS-CoV-2.
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Affiliation(s)
- Negin Parsamanesh
- Zanjan Metabolic Diseases Research Center, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Aiyoub Pezeshgi
- Zanjan Metabolic Diseases Research Center, Zanjan University of Medical Sciences, Zanjan, Iran.,Internal Medicine Department, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Mina Hemmati
- Faculty of Medicine, Biochemistry Department, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Maryam Jameshorani
- Zanjan Metabolic Diseases Research Center, Zanjan University of Medical Sciences, Zanjan, Iran.,Internal Medicine Department, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Ehsan Saboory
- Zanjan Metabolic Diseases Research Center, Zanjan University of Medical Sciences, Zanjan, Iran
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105
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Wang L, Ren Z, Ma L, Han Y, Wei W, Jiang E, Ji XY. Progress in Research on SARS-CoV-2 Infection Causing Neurological Diseases and Its Infection Mechanism. Front Neurol 2021; 11:592888. [PMID: 33519677 PMCID: PMC7838637 DOI: 10.3389/fneur.2020.592888] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 12/11/2020] [Indexed: 12/19/2022] Open
Abstract
COVID-19 has spread rapidly worldwide since its outbreak and has now become a major public health problem. More and more evidence indicates that SARS-CoV-2 may not only affect the respiratory system but also cause great harm to the central nervous system. Therefore, it is extremely important to explore in-depth the impact of SARS-CoV-2 infection on the nervous system. In this paper, the possible mechanisms of SARS-CoV-2 invading the central nervous system during COVID-19, and the neurological complications caused by SARS-CoV-2 infection were reviewed.
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Affiliation(s)
- Lintao Wang
- School of Clinical Medicine, Henan University, Kaifeng, China.,Henan International Joint Laboratory for Nuclear Protein Regulation and Kaifeng Key Laboratory of Infectious Diseases and Bio-safety, Henan University, Kaifeng, China
| | - Zhiguang Ren
- Henan International Joint Laboratory for Nuclear Protein Regulation and Kaifeng Key Laboratory of Infectious Diseases and Bio-safety, Henan University, Kaifeng, China.,School of Basic Medical Sciences, Henan University, Kaifeng, China
| | - Li Ma
- Henan International Joint Laboratory for Nuclear Protein Regulation and Kaifeng Key Laboratory of Infectious Diseases and Bio-safety, Henan University, Kaifeng, China.,Department of Infectious Diseases, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, China
| | - Yanjie Han
- Henan International Joint Laboratory for Nuclear Protein Regulation and Kaifeng Key Laboratory of Infectious Diseases and Bio-safety, Henan University, Kaifeng, China.,Clinical Laboratory, Functional Laboratory, Respiratory Department, Kaifeng Central Hospital, Kaifeng, China
| | - Wenqiang Wei
- Henan International Joint Laboratory for Nuclear Protein Regulation and Kaifeng Key Laboratory of Infectious Diseases and Bio-safety, Henan University, Kaifeng, China.,School of Basic Medical Sciences, Henan University, Kaifeng, China
| | - Enshe Jiang
- Henan International Joint Laboratory for Nuclear Protein Regulation and Kaifeng Key Laboratory of Infectious Diseases and Bio-safety, Henan University, Kaifeng, China.,Institute of Nursing and Health, School of Nursing and Health, Henan University, Kaifeng, China
| | - Xin-Ying Ji
- Henan International Joint Laboratory for Nuclear Protein Regulation and Kaifeng Key Laboratory of Infectious Diseases and Bio-safety, Henan University, Kaifeng, China
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106
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Dos Santos JHB, Passos RS, Freire IV, Ribeiro ÍJS, Oliveira AA, Casotti CA, Alkahtani SA, Barbosa AAL, Pereira R. The D allele of angiotensin-converting enzyme gene is associated with a worse autonomic heart control in community-based older adults. Exp Gerontol 2021; 146:111227. [PMID: 33429035 DOI: 10.1016/j.exger.2021.111227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 12/22/2020] [Accepted: 12/29/2020] [Indexed: 11/19/2022]
Abstract
The relationship between the Renin-Angiotensin-Aldosterone System (RAAS) and modulation of the Autonomic Nervous System (ANS) is reported as complex and bidirectional. Thus, the present study aimed to compare autonomous heart control, through symbolic analysis parameters, in the older adults carrying different ACE I/D gene polymorphisms (rs4646994). Two hundred four older adults comprised the study population and were grouped according to the ACE I/D gene polymorphism: II + ID genotype and DD genotype. Successive RR intervals were recorded along 5 min and analyzed with Symbolic Analysis (SA) method. 0 V%, 1 V% and 2 V% patterns were quantified and compared between groups. A linear mixed model analysis was used to determine between-group differences in symbolic analysis parameters (0 V%, 1 V% and 2 V%), taken groups as fixed factor and sex, use of ACE inhibitors and Angiotensin II receptor type I blockers as random factors. The Bayesian analysis was carried out to check the magnitude of the evidence. The results of this study indicate that older adults carrying the DD genotype have statistically greater sympathetic modulation (0 V%) and poor sympathovagal balance (1 V%), but the Bayesian analysis indicate only an anecdotal effect. Sympathetic predominance is recognized a worrying condition, since may predisposes to cardiovascular risk.
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Affiliation(s)
- Juleno Honorato Brito Dos Santos
- Integrative Physiology Research Center, Department of Biological Sciences, Universidade Estadual do Sudoeste da Bahia, Jequie 45210-506, Bahia, Brazil
| | - R S Passos
- Integrative Physiology Research Center, Department of Biological Sciences, Universidade Estadual do Sudoeste da Bahia, Jequie 45210-506, Bahia, Brazil
| | - Ivna Vidal Freire
- Integrative Physiology Research Center, Department of Biological Sciences, Universidade Estadual do Sudoeste da Bahia, Jequie 45210-506, Bahia, Brazil; Postgraduate Program in Nursing & Health, Universidade Estadual do Sudoeste da Bahia, Jequie 45210-506, Bahia, Brazil; Human Genetics Laboratory, Universidade Estadual do Sudoeste da Bahia, Jequie 45210-506, Bahia, Brazil
| | - Ícaro J S Ribeiro
- Integrative Physiology Research Center, Department of Biological Sciences, Universidade Estadual do Sudoeste da Bahia, Jequie 45210-506, Bahia, Brazil; Postgraduate Program in Nursing & Health, Universidade Estadual do Sudoeste da Bahia, Jequie 45210-506, Bahia, Brazil
| | - Alinne Alves Oliveira
- Integrative Physiology Research Center, Department of Biological Sciences, Universidade Estadual do Sudoeste da Bahia, Jequie 45210-506, Bahia, Brazil; Postgraduate Program in Nursing & Health, Universidade Estadual do Sudoeste da Bahia, Jequie 45210-506, Bahia, Brazil
| | - Cezar Augusto Casotti
- Postgraduate Program in Nursing & Health, Universidade Estadual do Sudoeste da Bahia, Jequie 45210-506, Bahia, Brazil
| | - Shaea A Alkahtani
- College of Sport Sciences and Physical Activity, King Saud University, Riyadh, Saudi Arabia
| | - Ana Angélica Leal Barbosa
- Human Genetics Laboratory, Universidade Estadual do Sudoeste da Bahia, Jequie 45210-506, Bahia, Brazil
| | - Rafael Pereira
- Integrative Physiology Research Center, Department of Biological Sciences, Universidade Estadual do Sudoeste da Bahia, Jequie 45210-506, Bahia, Brazil; Postgraduate Program in Nursing & Health, Universidade Estadual do Sudoeste da Bahia, Jequie 45210-506, Bahia, Brazil; Human Genetics Laboratory, Universidade Estadual do Sudoeste da Bahia, Jequie 45210-506, Bahia, Brazil.
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107
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Anu K. Ramachandran, Das S, Joseph A. Crosstalk Between Covid-19 and Associated Neurological Disorders: A Review. Curr Neuropharmacol 2021; 19:1688-1700. [PMID: 33441073 PMCID: PMC8977634 DOI: 10.2174/1570159x19666210113154342] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 12/19/2020] [Accepted: 12/26/2020] [Indexed: 11/22/2022] Open
Abstract
COVID-19 is a global pandemic, primarily affecting the pulmonary system but its effects on other systems are not certain. Coronavirus, the causative organism, binds with angiotensinconverting enzyme 2 (ACE2) receptors in the lungs and produces pneumonia-like symptoms. Other than lungs, ACE2 receptors are also seen in the endothelium of blood vessels. Therefore, viruses can bind to the ACE2 that is present in the endothelium of brain blood vessels and thus can invade BBB, leading to neuronal damage. It is also believed that olfactory cells rich in ACE2 receptors may act as the main route of viral spread into various parts of the brain. The reported neurological effects of SARS-CoV-2 include cerebrovascular diseases, ageusia and anosmia, Guillain Barre Syndrome, and viral encephalitis. The extent of neurological involvement in SARS-CoV-2 infection warrants the necessity of further research to systematically classify neurological complications associated with SARS-CoV-2 infection, its diagnosis, and treatment. As ACE2 receptors are present in various other organs, it is obligatory to study the effect of coronavirus on other organs also. Since the long-lasting effects of the COVID-19 are unclear, more studies should be conducted to confirm the effect of the virus on the central nervous system. This review highlights the reported neurological manifestations of SARS-CoV-2 and its mechanism.
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Affiliation(s)
- Anu K. Ramachandran
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka-576104, India
| | - Subham Das
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka-576104, India
| | - Alex Joseph
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka-576104, India
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108
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Chang YH, Huang CH, Hsieh PS. Interplay of COVID-19 and physiological dysfunctions. CHINESE J PHYSIOL 2021; 63:245-249. [PMID: 33380608 DOI: 10.4103/cjp.cjp_91_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
The outbreak of the global coronavirus disease 2019 (COVID-19) pandemic continues to impact the socioeconomic fabric and the general well-being of numerous populations and communities around the world. As cases continue to rise exponentially, gaining a better understanding of the pathophysiology and the associated clinical implications of SARS-CoV-2, the causative agent of COVID-19, becomes increasingly necessary. In this article, we delineate the role of COVID-19 in physiological and immunological dysfunction. Specifically, we highlight the various possible mechanisms and effects of SARS-CoV-2 infections on major organ systems as well as their contribution toward multiorgan system failure. By analyzing studies and statistics regarding various comorbidities in COVID-19 patients, we make inferences on the linkage between COVID-19, immune injury, multiorgan system damage, and disease progression.
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Affiliation(s)
- Yu-Hsiu Chang
- Institute of Preventive Medicine, National Defense Medical Center, New Taipei City, Taiwan
| | - Chih-Heng Huang
- Institute of Preventive Medicine, National Defense Medical Center, New Taipei City, Taiwan
| | - Po-Shiuan Hsieh
- Department of Physiology and Biophysics, National Defense Medical Center; Department of Medical Research, Tri-Service General Hospital, Taipei, Taiwan
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109
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Banerjee D, Viswanath B. Neuropsychiatric manifestations of COVID-19 and possible pathogenic mechanisms: Insights from other coronaviruses. Asian J Psychiatr 2020; 54:102350. [PMID: 33271682 PMCID: PMC7422836 DOI: 10.1016/j.ajp.2020.102350] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/11/2020] [Accepted: 08/03/2020] [Indexed: 12/15/2022]
Abstract
Coronavirus disease 2019 (COVID-19) pandemic caused by SARS-CoV-2 has emerged as a global public health threat. Though the fear, anxiety, and stress related to COVID-19 have been studied in depth, the direct effects of SARS-CoV-2 on the central nervous system (CNS) remain elusive. Research related to the earlier coronavirus (CoV) outbreaks (like Severe Acute Respiratory Syndrome, SARS and Middle East Respiratory Syndrome, MERS) shows the neurotropic nature of CoV and the plethora of neuropsychiatric effects that it can cause. Though the current health priorities in managing COVID-19 remain restricted to containment and targeting pulmonary symptoms, the potential acute and long-term neuropsychiatric sequelae of the infection can increase morbidity and worsen the quality of life. Emerging evidence shows neural spread of the novel coronavirus. Delirium, encephalopathy, olfactory disturbances, acute behavioral changes, headache and cerebrovascular accidents are its common neuropsychiatric complications. These are directly related to increase in peripheral immunological markers, severity of infection and case fatality rate. This narrative review synthesizes available evidence related to the neuropsychiatric manifestations of COVID-19. Also, as SARS-CoV-2 shares structural and functional similarities with its earlier congeners, this article proposes possible long-term neuropsychological sequelae and pathogenic mechanisms for the same, based on research in the other coronavirus outbreaks.
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Affiliation(s)
- Debanjan Banerjee
- Department of Psychiatry, National Institute of Mental Health and Neurosciences (NIMHANS), Bengaluru, India.
| | - Biju Viswanath
- Department of Psychiatry, National Institute of Mental Health and Neurosciences (NIMHANS), Bengaluru, India
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110
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Calderón-Garcidueñas L, Torres-Jardón R, Franco-Lira M, Kulesza R, González-Maciel A, Reynoso-Robles R, Brito-Aguilar R, García-Arreola B, Revueltas-Ficachi P, Barrera-Velázquez JA, García-Alonso G, García-Rojas E, Mukherjee PS, Delgado-Chávez R. Environmental Nanoparticles, SARS-CoV-2 Brain Involvement, and Potential Acceleration of Alzheimer's and Parkinson's Diseases in Young Urbanites Exposed to Air Pollution. J Alzheimers Dis 2020; 78:479-503. [PMID: 32955466 DOI: 10.3233/jad-200891] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Alzheimer's and Parkinson's diseases (AD, PD) have a pediatric and young adult onset in Metropolitan Mexico City (MMC). The SARS-CoV-2 neurotropic RNA virus is triggering neurological complications and deep concern regarding acceleration of neuroinflammatory and neurodegenerative processes already in progress. This review, based on our MMC experience, will discuss two major issues: 1) why residents chronically exposed to air pollution are likely to be more susceptible to SARS-CoV-2 systemic and brain effects and 2) why young people with AD and PD already in progress will accelerate neurodegenerative processes. Secondary mental consequences of social distancing and isolation, fear, financial insecurity, violence, poor health support, and lack of understanding of the complex crisis are expected in MMC residents infected or free of SARS-CoV-2. MMC residents with pre-SARS-CoV-2 accumulation of misfolded proteins diagnostic of AD and PD and metal-rich, magnetic nanoparticles damaging key neural organelles are an ideal host for neurotropic SARS-CoV-2 RNA virus invading the body through the same portals damaged by nanoparticles: nasal olfactory epithelium, the gastrointestinal tract, and the alveolar-capillary portal. We urgently need MMC multicenter retrospective-prospective neurological and psychiatric population follow-up and intervention strategies in place in case of acceleration of neurodegenerative processes, increased risk of suicide, and mental disease worsening. Identification of vulnerable populations and continuous effort to lower air pollution ought to be critical steps.
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Affiliation(s)
| | - Ricardo Torres-Jardón
- Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Maricela Franco-Lira
- Colegio de Bachilleres Militarizado, "General Mariano Escobedo", Monterrey, N.L., México
| | - Randy Kulesza
- Auditory Research Center, Lake Erie College of Osteopathic Medicine, Erie, PA, USA
| | | | | | | | | | | | | | | | | | - Partha S Mukherjee
- Interdisciplinary Statistical Research Unit, Indian Statistical Institute, Kolkata, India
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111
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Briguglio M, Porta M, Zuffada F, Bona AR, Crespi T, Pino F, Perazzo P, Mazzocchi M, Giorgino R, De Angelis G, Ielasi A, De Blasio G, Turiel M. SARS-CoV-2 Aiming for the Heart: A Multicenter Italian Perspective About Cardiovascular Issues in COVID-19. Front Physiol 2020; 11:571367. [PMID: 33240098 PMCID: PMC7677571 DOI: 10.3389/fphys.2020.571367] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 09/30/2020] [Indexed: 12/19/2022] Open
Abstract
The rapid spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and the high fatality rate of coronavirus disease 2019 (COVID-19) have been putting a strain on the world since December 2019. Infected individuals exhibit unpredictable symptoms that tend to worsen if age is advanced, a state of malnutrition persists, or if cardiovascular comorbidities are present. Once transmitted, the virus affects the lungs and in predisposed individuals can elicit a sequela of fatal cardiovascular consequences. We aim to present the pathophysiology of COVID-19, emphasizing the major cellular and clinical manifestations from a cardiological perspective. As a roaming viral particle or more likely via the Trojan horse route, SARS-CoV-2 can access different parts of the body. Cardiovascular features of COVID-19 can count myocardial injuries, vasculitis-like syndromes, and atherothrombotic manifestations. Deviations in the normal electrocardiogram pattern could hide pericardial effusion or cardiac inflammation, and dispersed microthrombi can cause ischemic damages, stroke, or even medullary reflex dysfunctions. Tailored treatment for reduced ejection fraction, arrhythmias, coronary syndromes, macrothrombosis and microthrombosis, and autonomic dysfunctions is mandatory. Confidently, evidence-based therapies for this multifaceted nevertheless purely cardiological COVID-19 will emerge after the global assessment of different approaches.
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Affiliation(s)
- Matteo Briguglio
- IRCCS Orthopedic Institute Galeazzi, Scientific Direction, Milan, Italy
| | - Mauro Porta
- IRCCS Orthopedic Institute Galeazzi, Neurology Unit, Milan, Italy
| | | | - Alberto R Bona
- ICCS Istituto Clinico Città Studi, Neurosurgery Unit, Milan, Italy
| | - Tiziano Crespi
- IRCCS Orthopedic Institute Galeazzi, Intensive Care Unit, Milan, Italy
| | - Fabio Pino
- IRCCS Orthopedic Institute Galeazzi, Intensive Care Unit, Milan, Italy
| | - Paolo Perazzo
- IRCCS Orthopedic Institute Galeazzi, Intensive Care Unit, Milan, Italy
| | - Marco Mazzocchi
- IRCCS Orthopedic Institute Galeazzi, Intensive Care Unit, Milan, Italy
| | - Riccardo Giorgino
- University of Milan, Residency Program in Orthopedics and Traumatology, Milan, Italy
| | | | - Alfonso Ielasi
- Istituto Clinico Sant'Ambrogio, Cardiology Unit, Milan, Italy
| | | | - Maurizio Turiel
- IRCCS Orthopedic Institute Galeazzi, Cardiology Unit, Milan, Italy
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112
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Pugliese NR, Masi S, Taddei S. The renin-angiotensin-aldosterone system: a crossroad from arterial hypertension to heart failure. Heart Fail Rev 2020; 25:31-42. [PMID: 31512149 DOI: 10.1007/s10741-019-09855-5] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The renin-angiotensin-aldosterone system (RAAS) plays a pivotal role in the regulation of blood pressure and volume homeostasis, promoting critical structural changes in every component of the cardiovascular system, including the heart and blood vessels. Consequently, the RAAS is a crucial therapeutic target for several chronic diseases of the cardiovascular system, spanning from arterial hypertension (AH) to heart failure (HF). AH represents a leading risk factor for the development of symptomatic HF, particularly with left ventricle (LV) preserved ejection fraction (HFpEF). LV diastolic dysfunction and cardiac remodelling are the first discernible manifestations of heart disease in patients with AH. Typically, AH develops many years before the diagnosis of overt HF, providing a therapeutic target for preventive strategies. Treatment of AH is based on different classes of antihypertensive drugs, which show differences in their capacity to prevent the evolution towards HF. The blockers of the RAAS are effective drugs to treat AH and prevent HF with reduced ejection fraction (HFrEF), but the evidence of the potential benefits in patients with HFpEF remains limited. In this review, the authors summarise data from several clinical trials of HFpEF and HFrEF, focusing on the mechanisms leading the transition from AH to HF and late complications.
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Affiliation(s)
- Nicola Riccardo Pugliese
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma, 67, 56126, Pisa, Italy.
| | - Stefano Masi
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma, 67, 56126, Pisa, Italy
| | - Stefano Taddei
- Department of Clinical and Experimental Medicine, University of Pisa, Via Roma, 67, 56126, Pisa, Italy
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113
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Sarkesh A, Daei Sorkhabi A, Sheykhsaran E, Alinezhad F, Mohammadzadeh N, Hemmat N, Bannazadeh Baghi H. Extrapulmonary Clinical Manifestations in COVID-19 Patients. Am J Trop Med Hyg 2020; 103:1783-1796. [PMID: 32940201 PMCID: PMC7646754 DOI: 10.4269/ajtmh.20-0986] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 09/07/2020] [Indexed: 01/08/2023] Open
Abstract
COVID-19 manifestations in symptomatic patients can be in the form of pneumonia, acute respiratory syndrome, and multiple organ dysfunction as well. Renal complications, gastrointestinal dysfunctions, endocrine system disorders, myocardial dysfunction and arrhythmia, neurological dysfunctions, dermatological symptoms, hematological manifestations, and thromboinflammation are among the reported extrapulmonary complications. Moreover, the presence of coagulopathy, excessive and dysregulated immune responses, and autoimmunity by COVID-19 patients is considerable. The pathogenesis of infection entails the entry of the virus via receptors on cells, principally angiotensin-converting enzyme 2 receptors. Direct virus damage coupled with indirect effects of viral infection including thromboinflammation, dysfunction of the immune system, and dysregulation of the renin-angiotensin system leads to multiple organ failure. This review outlines the extrapulmonary organ-specific complications and their pathophysiology and epidemiology.
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Affiliation(s)
- Aila Sarkesh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amin Daei Sorkhabi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Elham Sheykhsaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Students’ Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Bacteriology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Farbod Alinezhad
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Virology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nader Mohammadzadeh
- Department of Virology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
- Central Medical Laboratory of East Azerbaijan Province, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nima Hemmat
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Virology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hossein Bannazadeh Baghi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Virology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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114
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Li M, Chen S, Xiang X, Wang Q, Liu X. Effects of SARS-CoV-2 and its functional receptor ACE2 on the cardiovascular system. Herz 2020; 45:659-662. [PMID: 33025029 PMCID: PMC7537586 DOI: 10.1007/s00059-020-04989-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 08/28/2020] [Accepted: 09/08/2020] [Indexed: 12/22/2022]
Abstract
The clinical manifestations of COVID-19 are mainly respiratory symptoms, but some patients present with cardiovascular system disease such as palpitations and shortness of breath as the first or secondary symptoms. In this paper, we describe the characteristics of SARS-CoV‑2 and its functional receptor angiotensin-converting enzyme 2 (ACE2). Furthermore, we explore the impact of virus-induced myocardial damage, decreased ACE2 activity, immune imbalance, hypoxemia, and heart damage caused by antiviral drugs.
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Affiliation(s)
- Mingzhe Li
- Institute of Infection, Immunology and Tumor Microenvironment, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Medical College, Wuhan University of Science and Technology, 430065 Wuhan, China
| | - Siyang Chen
- Institute of Infection, Immunology and Tumor Microenvironment, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Medical College, Wuhan University of Science and Technology, 430065 Wuhan, China
| | - Xiaochen Xiang
- Institute of Infection, Immunology and Tumor Microenvironment, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Medical College, Wuhan University of Science and Technology, 430065 Wuhan, China
| | - Qiang Wang
- Institute of Infection, Immunology and Tumor Microenvironment, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Medical College, Wuhan University of Science and Technology, 430065 Wuhan, China
| | - Xiaoliu Liu
- Institute of Infection, Immunology and Tumor Microenvironment, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Medical College, Wuhan University of Science and Technology, 430065 Wuhan, China
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115
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Sparks MA, South AM, Badley AD, Baker-Smith CM, Batlle D, Bozkurt B, Cattaneo R, Crowley SD, Dell’Italia LJ, Ford AL, Griendling K, Gurley SB, Kasner SE, Murray JA, Nath KA, Pfeffer MA, Rangaswami J, Taylor WR, Garovic VD. Severe Acute Respiratory Syndrome Coronavirus 2, COVID-19, and the Renin-Angiotensin System: Pressing Needs and Best Research Practices. Hypertension 2020; 76:1350-1367. [PMID: 32981369 PMCID: PMC7685174 DOI: 10.1161/hypertensionaha.120.15948] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The coronavirus disease 2019 (COVID-19) pandemic is associated with significant morbidity and mortality throughout the world, predominantly due to lung and cardiovascular injury. The virus responsible for COVID-19-severe acute respiratory syndrome coronavirus 2-gains entry into host cells via ACE2 (angiotensin-converting enzyme 2). ACE2 is a primary enzyme within the key counter-regulatory pathway of the renin-angiotensin system (RAS), which acts to oppose the actions of Ang (angiotensin) II by generating Ang-(1-7) to reduce inflammation and fibrosis and mitigate end organ damage. As COVID-19 spans multiple organ systems linked to the cardiovascular system, it is imperative to understand clearly how severe acute respiratory syndrome coronavirus 2 may affect the multifaceted RAS. In addition, recognition of the role of ACE2 and the RAS in COVID-19 has renewed interest in its role in the pathophysiology of cardiovascular disease in general. We provide researchers with a framework of best practices in basic and clinical research to interrogate the RAS using appropriate methodology, especially those who are relatively new to the field. This is crucial, as there are many limitations inherent in investigating the RAS in experimental models and in humans. We discuss sound methodological approaches to quantifying enzyme content and activity (ACE, ACE2), peptides (Ang II, Ang-[1-7]), and receptors (types 1 and 2 Ang II receptors, Mas receptor). Our goal is to ensure appropriate research methodology for investigations of the RAS in patients with severe acute respiratory syndrome coronavirus 2 and COVID-19 to ensure optimal rigor and reproducibility and appropriate interpretation of results from these investigations.
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Affiliation(s)
- Matthew A. Sparks
- Division of Nephrology, Department of Medicine, Duke University School of Medicine, Durham, NC
- Renal Section, Durham VA Health Care System, Durham, NC
- American Heart Association, Council on Kidney in Cardiovascular Disease
| | - Andrew M. South
- American Heart Association, Council on Kidney in Cardiovascular Disease
- American Heart Association, Council on Hypertension
- Section of Nephrology, Department of Pediatrics, Brenner Children’s Hospital, Wake Forest School of Medicine, Winston Salem, NC
- Department of Epidemiology and Prevention, Division of Public Health Sciences, Wake Forest School of Medicine, Winston Salem, NC
- Department of Surgery-Hypertension and Vascular Research, Wake Forest School of Medicine, Winston Salem, NC
- Cardiovascular Sciences Center, Wake Forest School of Medicine, Winston Salem, NC
| | - Andrew D. Badley
- Division of Infectious Diseases, Mayo Clinic College of Medicine, Rochester, MN
| | - Carissa M. Baker-Smith
- Director of Preventive Cardiology, Division of Pediatric Cardiology, Department of Pediatrics, Nemours/Alfred I. duPont Hospital for Children, Wilmington, DE
- American Heart Association, Council on Lifelong Congenital Heart Disease and Heart Health in the Young
| | - Daniel Batlle
- Division of Nephrology and Hypertension, Northwestern University Feinberg Medical School, Chicago, IL
- American Heart Association, Council on Hypertension
| | - Biykem Bozkurt
- Section of Cardiology, Department of Internal Medicine, Baylor College of Medicine, Houston, TX
- Michael E. DeBakey VA Medical Center, Houston, TX
- American Heart Association, Council on Clinical Cardiology
| | - Roberto Cattaneo
- Department of Molecular Medicine, Mayo Clinic College of Medicine, Rochester, MN
| | - Steven D. Crowley
- Division of Nephrology, Department of Medicine, Duke University School of Medicine, Durham, NC
- Renal Section, Durham VA Health Care System, Durham, NC
- American Heart Association, Council on Kidney in Cardiovascular Disease
| | - Louis J. Dell’Italia
- Department of Medicine, Division of Cardiovascular Disease, University of Alabama at Birmingham, Birmingham, AL
- Department of Veterans Affairs Medical Center, Birmingham, AL
- American Heart Association, Council on Basic Cardiovascular Sciences
| | - Andria L. Ford
- Department of Neurology, Washington University in St. Louis School of Medicine, St. Louis, MO
- American Heart Association, Stroke Council
| | - Kathy Griendling
- American Heart Association, Council on Basic Cardiovascular Sciences
- Division of Cardiology, Department of Medicine, Emory University, Atlanta, GA
| | - Susan B. Gurley
- American Heart Association, Council on Kidney in Cardiovascular Disease
- Department of Medicine, Division of Nephrology and Hypertension, Oregon Health & Science University, Portland, OR
| | - Scott E. Kasner
- Department of Neurology, University of Pennsylvania, Philadelphia, Pennsylvania
- American Heart Association, Stroke Council
| | - Joseph A. Murray
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, Rochester, MN
| | - Karl A. Nath
- Division of Nephrology and Hypertension, Mayo Clinic College of Medicine, Rochester, MN
| | - Marc A. Pfeffer
- American Heart Association, Council on Clinical Cardiology
- Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - Janani Rangaswami
- American Heart Association, Council on Kidney in Cardiovascular Disease
- Department of Medicine, Einstein Medical Center Philadelphia, Philadelphia, PA
- Sidney Kimmel College of Thomas Jefferson University, Philadelphia, PA
| | - W. Robert Taylor
- Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, GA
- Wallace H. Coulter Department of Biomedical Engineering, Emory University and Georgia Institute of Technology, Atlanta, GA
- Division of Cardiology, Atlanta VA Medical Center, Decatur, GA
- American Heart Association, Council on Arteriosclerosis, Thrombosis and Vascular Biology
| | - Vesna D. Garovic
- American Heart Association, Council on Hypertension
- Division of Nephrology and Hypertension, Mayo Clinic College of Medicine, Rochester, MN
- Department of Obstetrics and Gynecology, Mayo Clinic College of Medicine, Rochester, MN
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116
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Cao-Ngoc P, Leclercq L, Rossi JC, Hertzog J, Tixier AS, Chemat F, Nasreddine R, Al Hamoui Dit Banni G, Nehmé R, Schmitt-Kopplin P, Cottet H. Water-Based Extraction of Bioactive Principles from Blackcurrant Leaves and Chrysanthellum americanum: A Comparative Study. Foods 2020; 9:E1478. [PMID: 33081198 PMCID: PMC7602794 DOI: 10.3390/foods9101478] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 10/01/2020] [Accepted: 10/12/2020] [Indexed: 12/24/2022] Open
Abstract
The water-based extraction of bioactive components from flavonoid-rich medicinal plants is a key step that should be better investigated. This is especially true when dealing with easy-to-use home-made conditions of extractions, which are known to be a bottleneck in the course for a better control and optimization of the daily uptake of active components from medicinal plants. In this work, the water-based extraction of Blackcurrant (Ribes nigrum) leaves (BC) and Chrysanthellum americanum (CA), known to have complementary pharmacological properties, was studied and compared with a previous work performed on the extraction of Hawthorn (Crataegus, HAW). Various extraction modes in water (infusion, percolation, maceration, ultrasounds, microwaves) were compared for the extraction of bioactive principles contained in BC and CA in terms of extraction yield, of amount of flavonoids, phenolic compounds, and proanthocyanidin oligomers, and of UHPLC profiles of the extracted compounds. The qualitative and quantitative aspects of the extraction, in addition to the kinetic of extraction, were studied. The optimized easy-to-use-at-home extraction protocol developed for HAW was found very efficient to easily extract bioactive components from BC and CA plants. UHPLC-ESI-MS and high-resolution Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) were also implemented to get more qualitative information on the specific and common chemical compositions of the three plants (including HAW). Their antihyaluronidase, antioxidant, and antihypertensive activities were also determined and compared, demonstrating similar activities as the reference compound for some of these plants.
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Affiliation(s)
- Phu Cao-Ngoc
- IBMM, University of Montpellier, CNRS, ENSCM, 34093 Montpellier, France; (P.C.-N.); (J.-C.R.)
| | - Laurent Leclercq
- IBMM, University of Montpellier, CNRS, ENSCM, 34093 Montpellier, France; (P.C.-N.); (J.-C.R.)
| | - Jean-Christophe Rossi
- IBMM, University of Montpellier, CNRS, ENSCM, 34093 Montpellier, France; (P.C.-N.); (J.-C.R.)
| | - Jasmine Hertzog
- Analytical BioGeoChemistry, Helmholtz Zentrum Muenchen, 85764 Neuherberg, Germany; (J.H.); (P.S.-K.)
- Analytical Food Chemistry, Technische Universität Muenchen, 85354 Freising, Germany
| | - Anne-Sylvie Tixier
- GREEN Extraction Team, INRA, University of Avignon, 84916 Avignon, France; (A.-S.T.); (F.C.)
| | - Farid Chemat
- GREEN Extraction Team, INRA, University of Avignon, 84916 Avignon, France; (A.-S.T.); (F.C.)
| | - Rouba Nasreddine
- Institute of Organic and Analytical Chemistry (ICOA), CNRS, University of Orléans, 45067 Orléans, France; (R.N.); (G.A.H.D.B.); (R.N.)
| | - Ghassan Al Hamoui Dit Banni
- Institute of Organic and Analytical Chemistry (ICOA), CNRS, University of Orléans, 45067 Orléans, France; (R.N.); (G.A.H.D.B.); (R.N.)
| | - Reine Nehmé
- Institute of Organic and Analytical Chemistry (ICOA), CNRS, University of Orléans, 45067 Orléans, France; (R.N.); (G.A.H.D.B.); (R.N.)
| | - Philippe Schmitt-Kopplin
- Analytical BioGeoChemistry, Helmholtz Zentrum Muenchen, 85764 Neuherberg, Germany; (J.H.); (P.S.-K.)
- Analytical Food Chemistry, Technische Universität Muenchen, 85354 Freising, Germany
| | - Hervé Cottet
- IBMM, University of Montpellier, CNRS, ENSCM, 34093 Montpellier, France; (P.C.-N.); (J.-C.R.)
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117
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Wu J, Tang Y. Revisiting the Immune Balance Theory: A Neurological Insight Into the Epidemic of COVID-19 and Its Alike. Front Neurol 2020; 11:566680. [PMID: 33178109 PMCID: PMC7593407 DOI: 10.3389/fneur.2020.566680] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 09/09/2020] [Indexed: 12/15/2022] Open
Abstract
As the pandemic of COVID-19 is raging around the world, the mysteriousness of severe acute respiratory syndrome-coronavirus 2 (SARS-CoV-2) coronavirus is being revealed by the concerted endeavors of scientists. Although fever and pneumonia are typical symptoms, COVID-19 patients exhibit multiple neurological complications. In this interim review, we will summarize the neurological manifestations and their potential causes in COVID-19. Similar to the other two fatal respiratory coronaviruses, SARS-CoV and Middle East respiratory syndrome coronavirus (MERS-CoV), SARS-CoV-2 also shows to be neuroinvasive that may spread from the periphery to brain, probably by the retrograde axonal transport. The invaded viruses may directly disrupt the complex neural circuits, and raise a chronic activation of immune responses. In another hand, multiple organ failure in severe COVID-19 is caused by the systemic acute immune responses, and unsurprisingly caused the brain inflammation and led to encephalitis. However, in the central nervous system (CNS), the activation of resident immune cells including microglia and astrocytes may lead to chronic immune imbalance, which underlies the potential long-term effects in synaptic changes and neuropsychiatric impairments. The neuroinvasive biology also provides a possible link with the Braak staging of neurodegenerative diseases such as Parkinson's disease (PD). Although with considerable advances, the neurotropic potential and chronic neurological effects caused by SARS-CoV-2 infections merit further investigations.
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Affiliation(s)
- Junjiao Wu
- National Clinical Research Center for Geriatric Disorders, Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, China
- Department of Rheumatology and Immunology, Xiangya Hospital, Central South University, Changsha, China
- Provincial Clinical Research Center for Rheumatic and Immunologic Diseases, Xiangya Hospital, Central South University, Changsha, China
| | - Yu Tang
- National Clinical Research Center for Geriatric Disorders, Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, China
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118
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Akoumianakis I, Filippatos T. The renin-angiotensin-aldosterone system as a link between obesity and coronavirus disease 2019 severity. Obes Rev 2020; 21:e13077. [PMID: 32567171 PMCID: PMC7362041 DOI: 10.1111/obr.13077] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 05/18/2020] [Accepted: 05/19/2020] [Indexed: 12/14/2022]
Abstract
Coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory distress coronavirus 2 (SARS-CoV2), is a rapidly evolving pandemic challenging the world and posing unprecedented public health issues. Current data show that COVID-19 is associated with increased disease severity in individuals with obesity. Obesity is usually associated with dysregulated renin-angiotensin-aldosterone (RAAS) axis. RAAS has also been implicated in acute lung injury as well as myocardial injury and has thus attracted interest as a potential regulator of COVID-19 severity. Whilst research all over the world is still struggling to provide a detailed characterization of the biology of SARS-CoV2 and its associated disease profile, it has become evident that SARS-CoV2 uses the membrane-bound form of angiotensin-converting enzyme 2 (ACE2) as a receptor for cell internalization. ACE2 is a protective component of the RAAS axis and is downregulated after SARS-CoV2 infection. The RAAS axis could thus be a link between obesity and COVID-19 severity; therefore, more accurate understanding of the underlying mechanisms would be needed with the hope of proposing efficient therapeutic interventions.
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Affiliation(s)
- Ioannis Akoumianakis
- Metabolic Diseases Research Unit, Internal Medicine Laboratory, School of MedicineUniversity of CreteHeraklionGreece
- Cardiovascular Medicine Division, Radcliffe Department of MedicineUniversity of OxfordOxfordUK
| | - Theodosios Filippatos
- Metabolic Diseases Research Unit, Internal Medicine Laboratory, School of MedicineUniversity of CreteHeraklionGreece
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119
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Cartas-Rosado R, Becerra-Luna B, Martínez-Memije R, Infante-Vázquez Ó, Lerma C, Pérez-Grovas H, Rodríguez-Chagolla JM. Continuous wavelet transform based processing for estimating the power spectrum content of heart rate variability during hemodiafiltration. Biomed Signal Process Control 2020. [DOI: 10.1016/j.bspc.2020.102031] [Citation(s) in RCA: 7] [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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120
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Sex differences in cardiovascular actions of the renin-angiotensin system. Clin Auton Res 2020; 30:393-408. [PMID: 32860555 DOI: 10.1007/s10286-020-00720-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 08/17/2020] [Indexed: 02/06/2023]
Abstract
Cardiovascular disease (CVD) remains a worldwide public health concern despite decades of research and the availability of numerous targeted therapies. While the intrinsic physiological mechanisms regulating cardiovascular function are similar between males and females, marked sex differences have been established in terms of CVD onset, pathophysiology, manifestation, susceptibility, prevalence, treatment responses and outcomes in animal models and clinical populations. Premenopausal females are generally protected from CVD in comparison to men of similar age, with females tending to develop cardiovascular complications later in life following menopause. Emerging evidence suggests this cardioprotection in females is, in part, attributed to sex differences in hormonal regulators, such as the renin-angiotensin system (RAS). To date, research has largely focused on canonical RAS pathways and shown that premenopausal females are protected from cardiovascular derangements produced by activation of angiotensin II pathways. More recently, a vasodilatory arm of the RAS has emerged that is characterized by angiotensin-(1-7) [(Ang-(1-7)], angiotensin-converting enzyme 2 and Mas receptors. Emerging studies provide evidence for a shift towards these cardioprotective Ang-(1-7) pathways in females, with effects modulated by interactions with estrogen. Despite well-established sex differences, female comparison studies on cardiovascular outcomes are lacking at both the preclinical and clinical levels. Furthermore, there are no specific guidelines in place for the treatment of cardiovascular disease in men versus women, including therapies targeting the RAS. This review summarizes current knowledge on sex differences in the cardiovascular actions of the RAS, focusing on interactions with gonadal hormones, emerging data for protective Ang-(1-7) pathways and potential clinical implications for established and novel therapies.
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121
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Shiravi AA, Saadatkish M, Abdollahi Z, Miar P, Khanahmad H, Zeinalian M. Vitamin D can be effective on the prevention of COVID-19 complications: A narrative review on molecular aspects. INT J VITAM NUTR RES 2020; 92:134-146. [PMID: 32811354 DOI: 10.1024/0300-9831/a000676] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The widespread COVID-19 pandemic has been, currently, converted to a catastrophic human health challenge. Vitamin D (VD) and its metabolites have been used as a palliative treatment for chronic inflammatory and infectious diseases from ancient times. In the current study, some molecular aspects of the potential effects of VD against COVID-19 side-effects have been discussed. An arguable role in autophagy or apoptosis control has been suggested for VD through calcium signaling at the mitochondrial and ER levels. 1,25(OH)2D3 is also an immunomodulator that affects the development of B-cells, T-cells, and NK cells in both innate and acquired immunity. The production of some anti-microbial molecules such as defensins and cathelicidins is also stimulated by VD. The overexpression of glutathione, glutathione peroxidase, and superoxide dismutase, and down-regulation of NADPH oxidase are induced by VD to reduce the oxidative stress. Moreover, the multi-organ failure due to a cytokine storm induced by SARS-CoV2 in COVID-19 may be prevented by the immunomodulatory effects of VD. It can also downregulate the renin-angiotensin system which has a protective role against cardiovascular complications induced by COVID-19. Given the many experimental and molecular evidences due to the potential protective effects of VD on the prevention of the COVID-19-induced morbidities, a VD supplementation is suggested to prevent the lethal side-effects of the infection. It is particularly recommended in VD-deficient patients or those at greater risk of serious or critical effects of COVID-19, including the elderly, and patients with pre-existing chronic diseases, especially those in nursing homes, care facilities, and hospitals.
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Affiliation(s)
- Amir-Abbas Shiravi
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Milad Saadatkish
- School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Zeinab Abdollahi
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Paniz Miar
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hossein Khanahmad
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mehrdad Zeinalian
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.,Ala Cancer Control and Prevention Center, Isfahan, Iran
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122
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Kenarkoohi A, Maleki M, Safari T, Kafashian M, Saljoughi F, Sohrabipour S. Angiotensin-converting Enzyme 2 roles in the Pathogenesis of COVID-19. Curr Hypertens Rev 2020; 17:207-216. [PMID: 32778033 DOI: 10.2174/1573402116666200810134702] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 07/13/2020] [Accepted: 07/17/2020] [Indexed: 11/22/2022]
Abstract
The new pandemic Coronavirus Disease 2019 (COVID-19) causes a wide range of clinical consequences, from asymptomatic infection to acute respiratory failure and it is very heterogeneous. The renin-angiotensin system (RAS) is well recognized as a key regulating system in circulatory homeostasis that play prominent roles in pathophysiological processes in abnormal activation for instance renal and cardiovascular diseases, obesity, and stroke. Angiotensin converting enzyme 2(ACE2) as a component of the RAS system. However, unlike the ACE, its activity is not inhibited by the ACE inhibitors. The major product of ACE2 is Ang1-7, known as a vasodilator peptide and part of the depressant arm of the RAS. There are two form of ACE2. Coronavirus cover with some proteins in order to help viral attachment to the cell membrane ACE2 as a receptor and then fuse and enter the cells. ACE2 was expressed in oral Cavity, salivary glands of the mouth, esophagus, myocardial cells, kidney, and enterocytes, along all the respiratory tract, intestine, and blood vessels. In this article, we explain the renin-angiotensin system and its components. Also, we shortly explain the organs involved in COVID-19 disease and we will talk about the possible causes of damage to these organs. We also reviewed the probable mechanism of using ACE2 in viral attachment and the probable treatment processes will also be discussed based on the surface proteins of the virus and ACE2. In addition, we briefly discuss the anti-angiotensin drugs and why patients with chronic disease are more susceptible to COVID-19 infection and show worse progression.
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Affiliation(s)
- Azra Kenarkoohi
- Department of Microbiology, Faculty of Medicine, Ilam University of Medical Sciences, Ilam. Iran
| | - Maryam Maleki
- Department of Physiology, Faculty of Medicine, Ilam University of Medical Sciences, Ilam. Iran
| | - Tahereh Safari
- Department of Physiology, Faculty of Medicine, Zahedan University of Medical Sciences, Zahedan. Iran
| | - Mohamadreza Kafashian
- Department of Physiology, Faculty of Medicine, Ilam University of Medical Sciences, Ilam. Iran
| | - Fateme Saljoughi
- Student Research Committee, Faculty of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas. Iran
| | - Shahla Sohrabipour
- Endocrinology and Metabolism Research Center, Hormozgan University of Medical Sciences, Bandar Abbas. Iran
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Sainz-Cort A, Heeroma JH. The interaction between the endocannabinoid system and the renin angiotensin system and its potential implication for COVID-19 infection. J Cannabis Res 2020; 2:23. [PMID: 32835160 PMCID: PMC7393810 DOI: 10.1186/s42238-020-00030-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 07/24/2020] [Indexed: 12/19/2022] Open
Abstract
Background Coronavirus disease 2019 (COVID-19) is spreading fast all around the world with more than fourteen millions of detected infected cases and more than 600.000 deaths by 20th July 2020. While scientist are working to find a vaccine, current epidemiological data shows that the most common comorbidities for patients with the worst prognosis, hypertension and diabetes, are often treated with angiotensin converting enzyme (ACE) inhibitors and angiotensin receptor blockers (ARBs). Body Both ACE inhibitors and ARBs induce overexpression of the angiotensin converting enzyme 2 (ACE-2) receptor, which has been identified as the main receptor used by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) to enter into the alveolar cells of the lungs. While cannabinoids are known to reduce hypertension, the studies testing the hypotensive effects of cannabinoids never addressed their effects on ACE-2 receptors. However, some studies have linked the endocannabinoid system (ECS) with the renin angiotensin system (RAS), including a cross-modulation between the cannabinoid receptor 1 (CB1) and angiotensin II levels. Conclusion Since there are around 192 million people using cannabis worldwide, we believe that the mechanism underlying the hypotensive properties of cannabinoids should be urgently studied to understand if they can also lead to ACE-2 overexpression as other antihypertensive drugs do.
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Birlutiu V, Birlutiu RM, Feiereisz AI. SARS-CoV-2 infection associated with micturition syncope: Our experience with 4 case reports. Medicine (Baltimore) 2020; 99:e21512. [PMID: 32756188 PMCID: PMC7402916 DOI: 10.1097/md.0000000000021512] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/25/2020] [Accepted: 07/01/2020] [Indexed: 01/10/2023] Open
Abstract
RATIONALE Syncope is described as the loss of consciousness and postural muscle tone with a short duration and fast onset. Micturition syncope can be caused by abnormal vasovagal response or by the dysfunction of the blood pressure regulating mechanism, which occurs before, during, or immediately after urination. PATIENT CONCERNS We present 4 cases of COVID-19 hospitalized in the Department of Infectious Diseases of the Academic Emergency Hospital Sibiu, Romania, cases that presented micturition syncope. DIAGNOSES During hospitalization, patients confirmed with SARS-Cov-2 infection using real time reverse transcriptase-polymerase chain reaction (RT-PCR) assay, presented micturition syncope in different stages of the infection (at the beginning and in the second week of evolution). INTERVENTIONS Other causes of syncope such as adrenal insufficiency secondary to corticosteroids treatment, cardiac rhythm disorders, neurological impairment, dehydration, vasoactive medication, malignancies, pulmonary hypertension and coughing were excluded. The treatment of SARS-CoV-2 infection was performed following the local and national guidelines. OUTCOMES The clinical course of all 4 patients diagnosed with COVID-19 and micturition syncope was favorable. To our knowledge, micturition syncope in COVID-19 patients has yet not been reported by other authors. LESSONS To our knowledge, micturition syncope associated with the evolution of COVID-19, has yet not been reported by other authors.
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Affiliation(s)
- Victoria Birlutiu
- Lucian Blaga University of Sibiu, Faculty of Medicine Sibiu, Academic Emergency Hospital Sibiu - Infectious Diseases Clinic, Sibiu
| | - Rares Mircea Birlutiu
- Faculty of Medicine Sibiu, FOISOR Clinical Hospital of Orthopedics, Traumatology, and Osteoarticular TB Bucharest
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125
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Machado AS, Oliveira JR, Lelis DDF, de Paula AMB, Guimarães ALS, Andrade JMO, Brandi IV, Santos SHS. Oral Probiotic Bifidobacterium Longum Supplementation Improves Metabolic Parameters and Alters the Expression of the Renin-Angiotensin System in Obese Mice Liver. Biol Res Nurs 2020; 23:100-108. [PMID: 32700545 DOI: 10.1177/1099800420942942] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Obesity and non-alcoholic fatty liver disease (NAFLD) have been increasing at an alarming rate worldwide. Bifidobacterium longum (BL), a common member of the human gut microbiota, has important health benefits through several mechanisms. OBJECTIVES We evaluated the BL supplementation effects on body metabolism and renin-angiotensin components hepatic expression in mice fed a high-fat diet. METHODS Thirty-two male mice were divided into four groups: standard diet + placebo (ST), standard diet + Bifidobacterium longum (ST + BL), high-fat diet + placebo (HFD) and high-fat diet + Bifidobacterium longum (HFD + BL). Following the obesity induction period, the ST + BL and HFD + BL groups were supplemented with Bifidobacterium longum for 4 weeks. Then, body, biochemical, histological and molecular parameters were evaluated. RESULTS HFD + BL mice had a significant decrease in adipose tissue mass and blood glucose levels, as well as a significant reduction in blood glucose during an intraperitoneal glucose tolerance test. The treatment also resulted in reduced levels of total cholesterol and hepatic fat accumulation. Moreover, we observed an increase in angiotensin converting enzyme 2 (ACE2) and Mas receptor (MASR) expression levels in BL-treated obese mice. CONCLUSIONS These data demonstrate that BL may have the potential to prevent obesity and NAFLD by modulating the mRNA expression of renin-angiotensin system components.
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Affiliation(s)
- Amanda S Machado
- Laboratory of Health Science, Postgraduation Program in Health Sciences, 153595Universidade Estadual de Montes Claros (UNIMONTES), Montes Claros, Minas Gerais, Brazil
| | - Janaína R Oliveira
- Laboratory of Health Science, Postgraduation Program in Health Sciences, 153595Universidade Estadual de Montes Claros (UNIMONTES), Montes Claros, Minas Gerais, Brazil
| | - Deborah de F Lelis
- Laboratory of Health Science, Postgraduation Program in Health Sciences, 153595Universidade Estadual de Montes Claros (UNIMONTES), Montes Claros, Minas Gerais, Brazil
| | - Alfredo M B de Paula
- Laboratory of Health Science, Postgraduation Program in Health Sciences, 153595Universidade Estadual de Montes Claros (UNIMONTES), Montes Claros, Minas Gerais, Brazil
| | - André L S Guimarães
- Laboratory of Health Science, Postgraduation Program in Health Sciences, 153595Universidade Estadual de Montes Claros (UNIMONTES), Montes Claros, Minas Gerais, Brazil
| | - João M O Andrade
- Laboratory of Health Science, Postgraduation Program in Health Sciences, 153595Universidade Estadual de Montes Claros (UNIMONTES), Montes Claros, Minas Gerais, Brazil
| | - Igor V Brandi
- Institute of Agricultural Sciences, Food Engineering, 28114Universidade Federal de Minas Gerais (UFMG), Montes Claros, Minas Gerais, Brazil
| | - Sérgio H S Santos
- Laboratory of Health Science, Postgraduation Program in Health Sciences, 153595Universidade Estadual de Montes Claros (UNIMONTES), Montes Claros, Minas Gerais, Brazil.,Institute of Agricultural Sciences, Food Engineering, 28114Universidade Federal de Minas Gerais (UFMG), Montes Claros, Minas Gerais, Brazil
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126
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Angiotensin-(1-7) Improves Integrated Cardiometabolic Function in Aged Mice. Int J Mol Sci 2020; 21:ijms21145131. [PMID: 32698498 PMCID: PMC7403973 DOI: 10.3390/ijms21145131] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/14/2020] [Accepted: 07/18/2020] [Indexed: 01/07/2023] Open
Abstract
Angiotensin (Ang)-(1-7) is a beneficial renin–angiotensin system (RAS) hormone that elicits protective cardiometabolic effects in young animal models of hypertension, obesity, and metabolic syndrome. The impact of Ang-(1-7) on cardiovascular and metabolic outcomes during aging, however, remains unexplored. This study tested the hypothesis that Ang-(1-7) attenuates age-related elevations in blood pressure and insulin resistance in mice. Young adult (two-month-old) and aged (16-month-old) male C57BL/6J mice received Ang-(1-7) (400 ng/kg/min) or saline for six-weeks via a subcutaneous osmotic mini-pump. Arterial blood pressure and metabolic function indices (body composition, insulin sensitivity, and glucose tolerance) were measured at the end of treatment. Adipose and cardiac tissue masses and cardiac RAS, sympathetic and inflammatory marker gene expression were also measured. We found that chronic Ang-(1-7) treatment decreased systolic and mean blood pressure, with a similar trend for diastolic blood pressure. Ang-(1-7) also improved insulin sensitivity in aged mice to levels in young mice, without effects on glucose tolerance or body composition. The blood pressure–lowering effects of Ang-(1-7) in aged mice were associated with reduced sympathetic outflow to the heart. These findings suggest Ang-(1-7) may provide a novel pharmacological target to improve age-related cardiometabolic risk.
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127
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Xue B, Zhang Y, Johnson AK. Interactions of the Brain Renin-Angiotensin-System (RAS) and Inflammation in the Sensitization of Hypertension. Front Neurosci 2020; 14:650. [PMID: 32760236 PMCID: PMC7373760 DOI: 10.3389/fnins.2020.00650] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 05/26/2020] [Indexed: 01/07/2023] Open
Abstract
Mounting evidence indicates that the renin-angiotensin (RAS) and immune systems interact with one another in the central nervous system (CNS) and that they are importantly involved in the pathogenesis of hypertension. Components comprising the classic RAS were first identified in the periphery, and subsequently, similar factors were found to be generated de novo in many different organs including the brain. There is humoral-neural coupling between the systemic and brain RASs, which is important for controlling sympathetic tone and the release of endocrine factors that collectively determine blood pressure (BP). Similar to the interactions between the systemic and brain RASs is the communication between the peripheral and brain immune systems. Systemic inflammation activates the brain’s immune response. Importantly, the RAS and inflammatory factors act synergistically in brain regions involved in the regulation of BP. This review presents evidence of how such interactions between the brain RAS and central immune mechanisms contribute to the pathogenesis of hypertension. Emphasis focuses on the role of these interactions to induce neuroplastic changes in a central neural network resulting in hypertensive response sensitization (HTRS). Neuroplasticity and HTRS can be induced by challenges (stressors) presented earlier in life such as a low-dose of angiotensin II or high fat diet (HFD) feeding in adults. Similarly, the offspring of mothers with gestational hypertension or of mothers ingesting a HFD during pregnancy are reprogrammed and manifest HTRS when exposed to new stressors as adults. Consideration of the actions and interactions of the brain RAS and inflammatory mediators in the context of the induction and expression of HTRS will provide insights into the etiology of high BP that may lead to new strategies for the prevention and treatment of hypertension.
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Affiliation(s)
- Baojian Xue
- Department of Psychological and Brain Sciences, The University of Iowa, Iowa City, IA, United States
| | - Yuping Zhang
- Department of Pathophysiology, Hebei North University, Zhangjiakou, China
| | - Alan Kim Johnson
- Department of Psychological and Brain Sciences, The University of Iowa, Iowa City, IA, United States.,Neuroscience and Pharmacology, The University of Iowa, Iowa City, IA, United States.,Health and Human Physiology, The University of Iowa, Iowa City, IA, United States.,The François M. Abboud Cardiovascular Research Center, The University of Iowa, Iowa City, IA, United States
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128
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Ahmadirad N, Ghasemi Z. COVID-19 and Central Nervous System: Entry Routes And. Basic Clin Neurosci 2020; 11:217-224. [PMID: 32855781 PMCID: PMC7368099 DOI: 10.32598/bcn.11.covid19.2360.1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/24/2020] [Accepted: 06/24/2020] [Indexed: 12/13/2022] Open
Abstract
Awareness of the current outbreak of Coronavirus Disease - 2019 (COVID-19) affecting the nervous system and identifying its possible ways to enter the Central Nervous System (CNS) are critical for the prevention and treatment of the disease. Hence, the CNS implications of the COVID-19 since the spread of the virus were reviewed in this study.
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Affiliation(s)
- Nooshin Ahmadirad
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Zahra Ghasemi
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Canada
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129
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Wu Y, Xu X, Chen Z, Duan J, Hashimoto K, Yang L, Liu C, Yang C. Nervous system involvement after infection with COVID-19 and other coronaviruses. Brain Behav Immun 2020; 87:18-22. [PMID: 32240762 PMCID: PMC7146689 DOI: 10.1016/j.bbi.2020.03.031] [Citation(s) in RCA: 1205] [Impact Index Per Article: 301.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 03/28/2020] [Accepted: 03/28/2020] [Indexed: 02/06/2023] Open
Abstract
Viral infections have detrimental impacts on neurological functions, and even to cause severe neurological damage. Very recently, coronaviruses (CoV), especially severe acute respiratory syndrome CoV 2 (SARS-CoV-2), exhibit neurotropic properties and may also cause neurological diseases. It is reported that CoV can be found in the brain or cerebrospinal fluid. The pathobiology of these neuroinvasive viruses is still incompletely known, and it is therefore important to explore the impact of CoV infections on the nervous system. Here, we review the research into neurological complications in CoV infections and the possible mechanisms of damage to the nervous system.
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Affiliation(s)
- Yeshun Wu
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China; Department of Cardiology, The Third Affiliated Hospital of Soochow University, Changzhou 213003, China
| | - Xiaolin Xu
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430030, China
| | - Zijun Chen
- Department of Cardiology, The Third Affiliated Hospital of Soochow University, Changzhou 213003, China
| | - Jiahao Duan
- Department of Cardiology, The Third Affiliated Hospital of Soochow University, Changzhou 213003, China
| | - Kenji Hashimoto
- Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba 260-8670, Japan
| | - Ling Yang
- Department of Cardiology, The Third Affiliated Hospital of Soochow University, Changzhou 213003, China
| | - Cunming Liu
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
| | - Chun Yang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
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130
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Lima RME, Reis LDA, Lara FSTD, Dias LC, Matsumoto M, Mizubuti GB, Hamaji A, Cabral LW, Mathias LADST, Lima LHNE. [Recommendations for local-regional anesthesia during the COVID-19 pandemic]. Rev Bras Anestesiol 2020; 70:159-164. [PMID: 32600800 PMCID: PMC7286242 DOI: 10.1016/j.bjan.2020.05.002] [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: 04/28/2020] [Revised: 05/25/2020] [Accepted: 05/28/2020] [Indexed: 12/14/2022] Open
Abstract
Desde o início da pandemia de COVID‐19, muitas questões surgiram referentes à segurança do manejo anestésico de pacientes acometidos pela doença. A anestesia regional, seja esta periférica ou neuroaxial, é alternativa segura no manejo do paciente COVID‐19, desde que o emprego de modalidades que minimizam o comprometimento da função pulmonar seja escolhido. A adoção dessa técnica anestésica minimiza os efeitos adversos no pós‐operatório e oferece segurança para o paciente e equipe, desde que sejam respeitados os cuidados com proteção individual e de contágio interpessoal. Respeito às contraindicações e emprego criterioso das técnicas e normas de segurança são fundamentais. Este manuscrito tem por objetivo revisar as evidências disponíveis sobre anestesia regional em pacientes com COVID‐19 e oferecer recomendações práticas para sua realização segura e eficiente.
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Affiliation(s)
- Rodrigo Moreira E Lima
- Queens University, Department of Anesthesia and Perioperative Medicine, Kingston, Ontario, Canada
| | | | | | - Lino Correa Dias
- Hospital Beneficência Portuguesa de Ribeirão Preto, Serviço de Anestesiologia, Ribeirão Preto, SP, Brasil
| | - Márcio Matsumoto
- Hospital Oswaldo Cruz, São Paulo, SP, Brasil; Hospital Samaritano, São Paulo, SP, Brasil; Hospital Sírio Libanês, Serviços Médicos de Anestesia (SMA), São Paulo, SP, Brasil
| | | | - Adilson Hamaji
- Universidade de São Paulo (USP), Hospital das Clínicas da Faculdade de Medicina, Serviço de Anestesia do Instituto de Ortopedia e Traumatologia, São Paulo, SP, Brasil
| | - Lucas Wynne Cabral
- Universidade Federal de Sergipe, Hospital Universitário, Serviço de Anestesia, Aracaju, SE, Brasil
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131
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Lima RME, Reis LDA, Thyrso de Lara FS, Dias LC, Matsumoto M, Mizubuti GB, Hamaji A, Cabral LW, Mathias LADST, Lima LHNE. Recommendations for local-regional anesthesia during the COVID-19 pandemic. Braz J Anesthesiol 2020; 70:159-164. [PMID: 32834193 PMCID: PMC7286225 DOI: 10.1016/j.bjane.2020.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 05/28/2020] [Indexed: 11/25/2022] Open
Abstract
Since the beginning of the COVID-19 pandemic, many questions have come up regarding safe anesthesia management of patients with the disease. Regional anesthesia, whether peripheral nerve or neuraxial, is a safe alternative for managing patients with COVID-19, by choosing modalities that mitigate pulmonary function involvement. Adopting regional anesthesia mitigates adverse effects in the post-operative period and provides safety to patients and teams, as long as there is compliance with individual protection and interpersonal transmission care measures. Respecting contra-indications and judicial use of safety techniques and norms are essential. The present manuscript aims to review the evidence available on regional anesthesia for patients with COVID-19 and offer practical recommendations for safe and efficient performance.
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Affiliation(s)
- Rodrigo Moreira E Lima
- Queens University, Department of Anesthesia and Perioperative Medicine, Kingston, Ontario, Canada
| | | | | | - Lino Correa Dias
- Hospital Beneficência Portuguesa de Ribeirão Preto, Serviço de Anestesiologia, Ribeirão Preto, SP, Brazil
| | - Márcio Matsumoto
- Hospital Oswaldo Cruz, São Paulo, SP, Brazil.,Hospital Samaritano, São Paulo, SP, Brazil.,Hospital Sírio Libanês, Serviços Médicos de Anestesia (SMA), São Paulo, SP, Brazil
| | | | - Adilson Hamaji
- Universidade de São Paulo (USP), Hospital das Clínicas da Faculdade de Medicina, Serviço de Anestesia do Instituto de Ortopedia e Traumatologia, São Paulo, SP, Brazil
| | - Lucas Wynne Cabral
- Universidade Federal de Sergipe, Hospital Universitário, Serviço de Anestesia, Aracajú, SE, Brazil
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132
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Archie SR, Cucullo L. Cerebrovascular and Neurological Dysfunction under the Threat of COVID-19: Is There a Comorbid Role for Smoking and Vaping? Int J Mol Sci 2020; 21:E3916. [PMID: 32486196 PMCID: PMC7312781 DOI: 10.3390/ijms21113916] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 05/28/2020] [Accepted: 05/29/2020] [Indexed: 01/08/2023] Open
Abstract
The recently discovered novel coronavirus, SARS-CoV-2 (COVID-19 virus), has brought the whole world to standstill with critical challenges, affecting both health and economic sectors worldwide. Although initially, this pandemic was associated with causing severe pulmonary and respiratory disorders, recent case studies reported the association of cerebrovascular-neurological dysfunction in COVID-19 patients, which is also life-threatening. Several SARS-CoV-2 positive case studies have been reported where there are mild or no symptoms of this virus. However, a selection of patients are suffering from large artery ischemic strokes. Although the pathophysiology of the SARS-CoV-2 virus affecting the cerebrovascular system has not been elucidated yet, researchers have identified several pathogenic mechanisms, including a role for the ACE2 receptor. Therefore, it is extremely crucial to identify the risk factors related to the progression and adverse outcome of cerebrovascular-neurological dysfunction in COVID-19 patients. Since many articles have reported the effect of smoking (tobacco and cannabis) and vaping in cerebrovascular and neurological systems, and considering that smokers are more prone to viral and bacterial infection compared to non-smokers, it is high time to explore the probable correlation of smoking in COVID-19 patients. Herein, we have reviewed the possible role of smoking and vaping on cerebrovascular and neurological dysfunction in COVID-19 patients, along with potential pathogenic mechanisms associated with it.
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Affiliation(s)
- Sabrina Rahman Archie
- Department of Pharmaceutical Sciences, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA;
| | - Luca Cucullo
- Department of Pharmaceutical Sciences, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA;
- Center for Blood-Brain Barrier Research, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA
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133
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Duan J, Wu Y, Liu C, Yang C, Yang L. Deleterious effects of viral pneumonia on cardiovascular system. Eur Heart J 2020; 41:1833-1838. [PMID: 32383765 DOI: 10.1093/eurheartj/ehaa325] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 03/19/2020] [Accepted: 04/10/2020] [Indexed: 12/22/2022] Open
Abstract
Abstract
Viral pneumonia has a significant effect on the cardiovascular system through various mechanisms; even though it is traditionally regarded as a pulmonary disease characterized by dyspnoea and hypoxaemia. Recent research works have shown that cardiovascular events outweigh all other causes of death in various influenza pandemics. Therefore, the exploration of the effects of viral pneumonia on cardiovascular system becomes increasingly essential. The objective of this review is three-fold: first, to summarize the knowledge about the epidemiological characteristics and clinical manifestations of viral infections that are the recent causes of global pandemics; second, to explore the cardiovascular response to these infections; and third, to attempt in identifying the possible coping strategies of the Wuhan epidemic and the future viral infection pandemics.
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Affiliation(s)
- Jiahao Duan
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
- Department of Cardiology, The Third Affiliated Hospital of Soochow University, Changzhou 213003, China
| | - Yeshun Wu
- Department of Cardiology, The Third Affiliated Hospital of Soochow University, Changzhou 213003, China
| | - Cunming Liu
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Chun Yang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Ling Yang
- Department of Cardiology, The Third Affiliated Hospital of Soochow University, Changzhou 213003, China
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134
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Alzahrani YM, Alim A. Sattar MA, Kamel FO, Ramadan WS, Alzahrani YA. Possible combined effect of perindopril and Azilsartan in an experimental model of dementia in rats. Saudi Pharm J 2020; 28:574-581. [PMID: 32435138 PMCID: PMC7229327 DOI: 10.1016/j.jsps.2020.03.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Accepted: 03/15/2020] [Indexed: 01/28/2023] Open
Abstract
Renin-angiotensin system exerted deleterious effects on learning and cognitive functions through different mechanisms. The present study has been designed to evaluate the protective effect of perindopril and azilsartan as monotherapy or in combination on aluminum chloride (AlCl3) induced neurobehavioral and pathological changes in Alzheimeric rats. Male Wistar rats were divided into nine groups (n = 6); negative control, AlCl3 treated, vehicle, AlCl3 and Azilsartan (3.5 mg/kg, 7 mg/kg) co-treated, AlCl3 and perindopril (0.5 mg/kg, 1 mg/kg) co-treated, AlCl3 and (Azilsartan 3.5 mg/kg + perindopril 0.5 mg/kg), and AlCl3 and (Azilsartan 7 mg/kg + perindopril 1 mg/kg), all groups were treated for consecutive 60 days. Then, memory function was evaluated by the Y- maze test. Amyloid Peptide - 42 (Aβ-42), Acetylcholinesterase (AChE), Malondialdehyde (MDA), Tumor necrosis factor (TNF-α) and Nitric Oxide (NO) levels in the hippocampus were assessed with (ELISA) kits. The histopathological studies of the hippocampal dentate gyrus (DG) and Cornu Ammonis-3 (CA3) were also performed. Oral administration of either azilsartan and perindopril alone or in combined for 60 days have shown; improvement of cognitive function, significant reduction in the hippocampal levels of Aβ-42, Acetylcholinesterase, Malondialdehyde (MDA), Tumor necrosis factor (TNF-α) and reserved most of histopathological changes in dentate gyrus (DG) and Cornu Ammonis-3 (CA3) that mediated by Alcl3. Our behavioral, biochemical, and histopathological studies indicate that perindopril and azilsartan have neuroprotective effects on the AD model of rats induced by AlCl3, suggesting that perindopril and azilsartan may be a candidate drugs for the treatment of AD.
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Affiliation(s)
- Yahya M. Alzahrani
- Department of Pharmacology, College of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mai A. Alim A. Sattar
- Department of Pharmacology, College of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Fatemah O. Kamel
- Department of Pharmacology, College of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Wafaa S. Ramadan
- Department of Anatomy, College of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Yahya A. Alzahrani
- Department of Pharmacy, East Jeddah Hospital, Ministry of Health, Jeddah, Saudi Arabia
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135
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Kück JL, Bönhof GJ, Strom A, Zaharia OP, Müssig K, Szendroedi J, Roden M, Ziegler D. Impairment in Baroreflex Sensitivity in Recent-Onset Type 2 Diabetes Without Progression Over 5 Years. Diabetes 2020; 69:1011-1019. [PMID: 32086289 DOI: 10.2337/db19-0990] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 02/10/2020] [Indexed: 11/13/2022]
Abstract
Impaired baroreflex sensitivity (BRS) predicts cardiovascular mortality and is prevalent in long-term diabetes. We determined spontaneous BRS in patients with recent-onset diabetes and its temporal sequence over 5 years by recording beat-to-beat blood pressure and R-R intervals over 10 min. Four time domain and four frequency domain BRS indices were computed in participants from the German Diabetes Study baseline cohort with recent-onset type 1/type 2 diabetes (n = 206/381) and age-matched glucose-tolerant control subjects (control 1/control 2: n = 65/83) and subsets of consecutive participants with type 1/type 2 diabetes who reached the 5-year follow-up (n = 84/137). Insulin sensitivity (M-value) was determined using a hyperinsulinemic-euglycemic clamp. After appropriate adjustment, three frequency domain BRS indices were reduced in type 2 diabetes compared with control 2 and were positively associated with the M-value and inversely associated with fasting glucose and HbA1c (P < 0.05), whereas BRS was preserved in type 1 diabetes. After 5 years, a decrease in one and four BRS indices was observed in patients with type 1 and type 2 diabetes, respectively (P < 0.05), which was explained by the physiologic age-dependent decline. Unlike patients with well-controlled recent-onset type 1 diabetes, those with type 2 diabetes show early baroreflex dysfunction, likely due to insulin resistance and hyperglycemia, albeit without progression over 5 years.
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Affiliation(s)
- Jana-Luise Kück
- Institute for Clinical Diabetology, German Diabetes Center (DDZ), Leibniz Center for Diabetes Research at Heinrich Heine University, Düsseldorf, Germany
| | - Gidon J Bönhof
- Institute for Clinical Diabetology, German Diabetes Center (DDZ), Leibniz Center for Diabetes Research at Heinrich Heine University, Düsseldorf, Germany
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
- Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Alexander Strom
- Institute for Clinical Diabetology, German Diabetes Center (DDZ), Leibniz Center for Diabetes Research at Heinrich Heine University, Düsseldorf, Germany
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
| | - Oana-Patricia Zaharia
- Institute for Clinical Diabetology, German Diabetes Center (DDZ), Leibniz Center for Diabetes Research at Heinrich Heine University, Düsseldorf, Germany
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
| | - Karsten Müssig
- Institute for Clinical Diabetology, German Diabetes Center (DDZ), Leibniz Center for Diabetes Research at Heinrich Heine University, Düsseldorf, Germany
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
- Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Julia Szendroedi
- Institute for Clinical Diabetology, German Diabetes Center (DDZ), Leibniz Center for Diabetes Research at Heinrich Heine University, Düsseldorf, Germany
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
- Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Michael Roden
- Institute for Clinical Diabetology, German Diabetes Center (DDZ), Leibniz Center for Diabetes Research at Heinrich Heine University, Düsseldorf, Germany
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
- Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
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In reply: Spinal anesthesia for Cesarean delivery in women with COVID-19 infection: questions regarding the cause of hypotension. Can J Anaesth 2020; 67:1099-1100. [PMID: 32342349 PMCID: PMC7184817 DOI: 10.1007/s12630-020-01664-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 04/10/2020] [Accepted: 04/10/2020] [Indexed: 01/16/2023] Open
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137
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Sayk F, Twesten C, Adametz I, Franzen K, Vonthein R, Dodt C, Meusel M. Angiotensin II-mediated nondipping during sleep in healthy humans: effects on baroreflex function at subsequent daytime. Am J Physiol Regul Integr Comp Physiol 2020; 318:R813-R821. [DOI: 10.1152/ajpregu.00355.2019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Blood pressure dipping at night is mediated by sleep-inherent, active downregulation of sympathetic vascular tone. Concomitantly, activity of the renin-angiotensin system is reduced, which might contribute to the beneficial effect of baroreflex downward resetting on daytime blood pressure homeostasis. To evaluate whether experimental nondipping mediated by angiotensin II during sleep would alter blood pressure and baroreflex function the next day in healthy humans, angiotensin-II or placebo (saline) was infused for a 7-h period at night, preventing blood pressure dipping in 11 sleeping normotensive individuals (5 males, balanced, crossover design). Baroreflex function was assessed about 1 h upon awakening and stop of infusion via microneurographic recordings of muscle sympathetic nerve activity (MSNA), showing that resting MSNA was significantly increased following angiotensin II nondipping compared with placebo ( P = 0.029), whereas blood pressure and heart rate remained unchanged. Baroreflex sensitivity in response to vasoactive drug challenge was preserved, and neuroendocrine markers of fluid balance and electrolytes did not differ between conditions. Ambulatory blood pressure during subsequent daytime was not altered. Data were compared with analog experiments previously performed within the same subjects during awake daytime (ANCOVA). We conclude that angiotensin-II mediated nocturnal nondipping did not induce blood pressure elevation at subsequent daytime in healthy humans but was linked to increased vasoconstrictive sympathetic activity. This is in contrast to a prolonged increase in blood pressure in corresponding daytime experiments of the same individuals. Evidently, sleep strongly preserves normotensive blood pressure homeostasis in healthy humans.
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Affiliation(s)
- Friedhelm Sayk
- Department of Internal Medicine, University Hospital of Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Christoph Twesten
- Department of Internal Medicine, University Hospital of Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Isabel Adametz
- Institute of Radiology, University Hospital of Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Klaas Franzen
- Department of Internal Medicine, University Hospital of Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Reinhard Vonthein
- Institute of Medical Biometry and Statistics, University of Lübeck, Lübeck, Germany
| | - Christoph Dodt
- Department of Emergency Medicine, München-Bogenhausen Hospital, München, Germany
| | - Moritz Meusel
- Department of Cardiology and Angiology, University Heart Center Lübeck, University Hospital of Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
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138
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Kulshreshtha D, Ganguly J, Jog M. Managing autonomic dysfunction in Parkinson's disease: a review of emerging drugs. Expert Opin Emerg Drugs 2020; 25:37-47. [PMID: 32067502 DOI: 10.1080/14728214.2020.1729120] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Introduction: Autonomic dysfunction is an integral part of Parkinson disease (PD) complex and can be seen both in early and advanced stages. There is a paucity of medicines available to manage autonomic dysfunction in PD and this adds to the considerable morbidity associated with the illness.Areas covered: The pathophysiology and the available therapeutic options of autonomic dysfunction seen in PD are discussed in detail. The potential targets for novel regimens are reviewed and the available literature on the drugs emerging in management of autonomic dysfunction in PD is highlighted.Expert opinion: In the current scenario, there are several drugs that can be tried for constipation viz stool laxatives, prucalopride, prokinetic agents and a high fiber diet. Bladder dysfunction has been treated with β-agonists and with mirabegron, a selective β-3 agonist, the anticholinergic side effects are minimized, and the drug has been found to be effective. Orthostatic hypotension is managed with midodrine while droxidopa is a new drug with promising efficacy. Botulinum toxin works best for management of sialorrhea, but repeated injections are needed.
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Affiliation(s)
- Dinkar Kulshreshtha
- Movement Disorder Centre, London Health Sciences Centre, The University of Western Ontario, Ontario, London, Canada
| | - Jacky Ganguly
- Movement Disorder Centre, London Health Sciences Centre, The University of Western Ontario, Ontario, London, Canada
| | - Mandar Jog
- Movement Disorder Centre, London Health Sciences Centre, The University of Western Ontario, Ontario, London, Canada
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139
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Affiliation(s)
- Horacio Kaufmann
- From the Department of Neurology, Dysautonomia Center, New York University School of Medicine, New York
| | - Lucy Norcliffe-Kaufmann
- From the Department of Neurology, Dysautonomia Center, New York University School of Medicine, New York
| | - Jose-Alberto Palma
- From the Department of Neurology, Dysautonomia Center, New York University School of Medicine, New York
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140
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Sumners C, Alleyne A, Rodríguez V, Pioquinto DJ, Ludin JA, Kar S, Winder Z, Ortiz Y, Liu M, Krause EG, de Kloet AD. Brain angiotensin type-1 and type-2 receptors: cellular locations under normal and hypertensive conditions. Hypertens Res 2019; 43:281-295. [PMID: 31853042 DOI: 10.1038/s41440-019-0374-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 10/25/2019] [Accepted: 11/02/2019] [Indexed: 12/15/2022]
Abstract
Brain angiotensin-II (Ang-II) type-1 receptors (AT1Rs), which exert profound effects on normal cardiovascular, fluid, and metabolic homeostasis, are overactivated in and contribute to chronic sympathoexcitation and hypertension. Accumulating evidence indicates that the activation of Ang-II type-2 receptors (AT2Rs) in the brain exerts effects that are opposite to those of AT1Rs, lowering blood pressure, and reducing hypertension. Thus, it would be interesting to understand the relative cellular localization of AT1R and AT2R in the brain under normal conditions and whether this localization changes during hypertension. Here, we developed a novel AT1aR-tdTomato reporter mouse strain in which the location of brain AT1aR was largely consistent with that determined in the previous studies. This AT1aR-tdTomato reporter mouse strain was crossed with our previously described AT2R-eGFP reporter mouse strain to yield a novel dual AT1aR/AT2R reporter mouse strain, which allowed us to determine that AT1aR and AT2R are primarily localized to different populations of neurons in brain regions controlling cardiovascular, fluid, and metabolic homeostasis. Using the individual AT1aR-tdTomato reporter mice, we also demonstrated that during hypertension induced by the administration of deoxycorticosterone acetate-salt, there was no shift in the expression of AT1aR from neurons to microglia or astrocytes in the paraventricular nucleus, a brain area important for sympathetic regulation. Using AT2R-eGFP reporter mice under similar hypertensive conditions, we demonstrated that the same was true of AT2R expression in the nucleus of the solitary tract (NTS), an area critical for baroreflex control. Collectively, these findings provided a novel means to assess the colocalization of AT1R and AT2R in the brain and a novel view of their cellular localization in hypertension.
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Affiliation(s)
- Colin Sumners
- Department of Physiology and Functional Genomics, College of Medicine, University of Florida, Gainesville, FL, 32611, USA
| | - Amy Alleyne
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, 32611, USA
| | - Vermalí Rodríguez
- Department of Physiology and Functional Genomics, College of Medicine, University of Florida, Gainesville, FL, 32611, USA
| | - David J Pioquinto
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, 32611, USA
| | - Jacob A Ludin
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, 32611, USA
| | - Shormista Kar
- Department of Physiology and Functional Genomics, College of Medicine, University of Florida, Gainesville, FL, 32611, USA
| | - Zachary Winder
- Department of Physiology and Functional Genomics, College of Medicine, University of Florida, Gainesville, FL, 32611, USA.,Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, 32611, USA
| | - Yuma Ortiz
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, 32611, USA
| | - Meng Liu
- Department of Physiology and Functional Genomics, College of Medicine, University of Florida, Gainesville, FL, 32611, USA
| | - Eric G Krause
- Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, 32611, USA
| | - Annette D de Kloet
- Department of Physiology and Functional Genomics, College of Medicine, University of Florida, Gainesville, FL, 32611, USA.
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141
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ACE-Triggered Hypertension Incites Stroke: Genetic, Molecular, and Therapeutic Aspects. Neuromolecular Med 2019; 22:194-209. [PMID: 31802381 DOI: 10.1007/s12017-019-08583-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 11/29/2019] [Indexed: 01/13/2023]
Abstract
Stroke is the second largest cause of death worldwide. Angiotensin converting enzyme (ACE) gene has emerged as an important player in the pathogenesis of hypertension and consequently stroke. It encodes ACE enzyme that converts the inactive decapeptide angiotensin I to active octapeptide, angiotensin II (Ang II). Dysregulation in the expression of ACE gene, on account of genetic variants or regulation by miRNAs, alters the levels of ACE in the circulation. Variable expression of ACE affects the levels of Ang II. Ang II acts through different signal transduction pathways via various tyrosine kinases (receptor/non-receptor) and protein serine/threonine kinases, initiating a downstream cascade of molecular events. In turn these activated molecular pathways might lead to hypertension and inflammation thereby resulting in cardiovascular and cerebrovascular diseases including stroke. In order to regulate the overexpression of ACE, many ACE inhibitors and blockers have been developed, some of which are still under clinical trials.
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142
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Medina D, Arnold AC. Angiotensin-(1-7): Translational Avenues in Cardiovascular Control. Am J Hypertens 2019; 32:1133-1142. [PMID: 31602467 DOI: 10.1093/ajh/hpz146] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 09/06/2019] [Accepted: 09/04/2019] [Indexed: 12/12/2022] Open
Abstract
Despite decades of research and numerous treatment approaches, hypertension and cardiovascular disease remain leading global public health problems. A major contributor to regulation of blood pressure, and the development of hypertension, is the renin-angiotensin system. Of particular concern, uncontrolled activation of angiotensin II contributes to hypertension and associated cardiovascular risk, with antihypertensive therapies currently available to block the formation and deleterious actions of this hormone. More recently, angiotensin-(1-7) has emerged as a biologically active intermediate of the vasodilatory arm of the renin-angiotensin system. This hormone antagonizes angiotensin II actions as well as offers antihypertensive, antihypertrophic, antiatherogenic, antiarrhythmogenic, antifibrotic and antithrombotic properties. Angiotensin-(1-7) elicits beneficial cardiovascular actions through mas G protein-coupled receptors, which are found in numerous tissues pivotal to control of blood pressure including the brain, heart, kidneys, and vasculature. Despite accumulating evidence for favorable effects of angiotensin-(1-7) in animal models, there is a paucity of clinical studies and pharmacokinetic limitations, thus limiting the development of therapeutic agents to better understand cardiovascular actions of this vasodilatory peptide hormone in humans. This review highlights current knowledge on the role of angiotensin-(1-7) in cardiovascular control, with an emphasis on significant animal, human, and therapeutic research efforts.
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Affiliation(s)
- Daniela Medina
- Department of Neural and Behavioral Sciences, Penn State College of Medicine, Hershey, Pennsylvania, USA
| | - Amy C Arnold
- Department of Neural and Behavioral Sciences, Penn State College of Medicine, Hershey, Pennsylvania, USA
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143
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Sousa LE, Favero IFD, Bezerra FS, de Souza ABF, Alzamora AC. Environmental Enrichment Promotes Antioxidant Effect in the Ventrolateral Medulla and Kidney of Renovascular Hypertensive Rats. Arq Bras Cardiol 2019; 113:905-912. [PMID: 31482985 PMCID: PMC7020968 DOI: 10.5935/abc.20190166] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 12/14/2018] [Accepted: 02/13/2019] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Arterial hypertension is a precursor to the development of heart and renal failure, furthermore is associated with elevated oxidative markers. Environmental enrichment of rodents increases performance in memory tasks, also appears to exert an antioxidant effect in the hippocampus of normotensive rats. OBJECTIVES Evaluate the effect of environmental enrichment on oxidative stress in the ventrolateral medulla, heart, and kidneys of renovascular hypertensive rats. METHODS Forty male Fischer rats (6 weeks old) were divided into four groups: normotensive standard condition (Sham-St), normotensive enriched environment (Sham-EE), hypertensive standard condition (2K1C-St), and hypertensive enriched environment (2K1C-EE). Animals were kept in enriched or standard cages for four weeks after all animals were euthanized. The level of significance was at p < 0.05. RESULTS 2K1C-St group presented higher mean arterial pressure (mmHg) 147.0 (122.0; 187.0) compared to Sham-St 101.0 (94.0; 109.0) and Sham-EE 106.0 (90.8; 117.8). Ventrolateral medulla from 2K1C-EE had higher superoxide dismutase (SOD) (49.1 ± 7.9 U/mg ptn) and catalase activity (0.8 ± 0.4 U/mg ptn) compared to SOD (24.1 ± 9.8 U/mg ptn) and catalase activity (0.3 ± 0.1 U/mg ptn) in 2K1C-St. 2K1C-EE presented lower lipid oxidation (0.39 ± 0.06 nmol/mg ptn) than 2K1C-St (0.53 ± 0.22 nmol/mg ptn) in ventrolateral medulla. Furthermore, the kidneys of 2K1C-EE (11.9 ± 2.3 U/mg ptn) animals presented higher superoxide-dismutase activity than those of 2K1C-St animals (9.1 ± 2.3 U/mg ptn). CONCLUSION Environmental enrichment induced an antioxidant effect in the ventrolateral medulla and kidneys that contributes to reducing oxidative damage among hypertensive rats.
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144
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Arellano-Orden E, Bacopoulou F, Baicus C, Bonfrate L, Broadbent J, Buechler C, Carbone F, Charmandari E, Davis GR, Dullaart RPF, Efthymiou V, Goeser F, Goswami N, Jong GP, Lichtenauer M, Liou YS, Lutz P, Maeng M, Mert GÖ, Mert KU, Montecucco F, Ndrepepa G, Olesen KKW, Oliveira P, Perton FG, Portincasa P, Rodriguez-Panadero F, Schernthaner C, Schutte R. Research update for articles published in EJCI in 2017. Eur J Clin Invest 2019; 49:e13163. [PMID: 31524285 DOI: 10.1111/eci.13163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 08/06/2019] [Indexed: 11/27/2022]
Affiliation(s)
- Elena Arellano-Orden
- Medical-Surgical Unit of Respiratory Diseases, University Hospital Virgen del Rocio, Seville, Spain.,Institute of Biomedicine of Seville (IBiS), Seville, Spain.,Center for Biomedical Research in Respiratory Diseases Network, Carlos III Health Institute, Madrid, Spain
| | - Flora Bacopoulou
- First Department of Pediatrics, Center for Adolescent Medicine and UNESCO Chair on Adolescent Health Care, School of Medicine, National and Kapodistrian University of Athens, Aghia Sophia Children's Hospital, Athens, Greece
| | - Cristian Baicus
- Department of Internal Medicine, Carol Davila University of Medicine and Pharmacy, Colentina Clinical Hospital, Bucharest, Romania
| | - Leonilde Bonfrate
- Department of Biomedical Sciences & Human Oncology, Clinica Medica "A. Murri", University of Bari Medical School, Bari, Italy
| | - James Broadbent
- Norwich Medical School, Faculty of Medicine and Health Sciences, University of East Anglia, Norwich, UK
| | - Christa Buechler
- Department of Internal Medicine I, Regensburg University Hospital, Regensburg, Germany
| | - Federico Carbone
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, Genoa, Italy.,IRCCS Ospedale Policlinico San Martino Genoa - Italian Cardiovascular Network, Genoa, Italy
| | - Evangelia Charmandari
- Division of Endocrinology, Metabolism and Diabetes, First Department of Pediatrics, School of Medicine, National and Kapodistrian University of Athens, Aghia Sophia Children's Hospital, Athens, Greece.,Division of Endocrinology and Metabolism, Clinical, Experimental Surgery and Translational Research Center, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - Greggory R Davis
- Red Lerille's/LEQSF Regents Endowed Professor in Health and Physical Education, University of Louisiana at Lafayette, Lafayette, LA, USA
| | - Robin P F Dullaart
- Department of Endocrinology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Vasiliki Efthymiou
- First Department of Pediatrics, Center for Adolescent Medicine and UNESCO Chair on Adolescent Health Care, School of Medicine, National and Kapodistrian University of Athens, Aghia Sophia Children's Hospital, Athens, Greece
| | - Felix Goeser
- Department of Internal Medicine I, University of Bonn, Bonn, German.,German Center for Infection Research, Bonn, Germany
| | - Nandu Goswami
- Physiology Division, Otto Loewi Research Center of Vascular Biology, Immunity and Inflammation, Medical University of Graz, Graz, Austria
| | - Gwo-Ping Jong
- Division of Internal Cardiology, Chung Shan Medical University Hospital and Chung Shan Medical University, Taichung, Taiwan ROC
| | | | - Yi-Sheng Liou
- Department of Family Medicine, Taichung Veteran General Hospital, Taichung, ROC.,School of Public Health, National Defense Medical Center, Taipei, Taiwan ROC
| | - Philipp Lutz
- Department of Internal Medicine I, University of Bonn, Bonn, German.,German Center for Infection Research, Bonn, Germany
| | - Michael Maeng
- Department of Cardiology, Aarhus University Hospital, Aarhus N, Denmark
| | - Gurbet Özge Mert
- Department of Cardiology, Eskişehir Yunus Emre State Hospital, Eskişehir, Turkey
| | - Kadir Uğur Mert
- Department of Cardiology, Eskisehir Osmangazi University, Eskişehir, Turkey
| | - Fabrizio Montecucco
- IRCCS Ospedale Policlinico San Martino Genoa - Italian Cardiovascular Network, Genoa, Italy.,First Clinic of Internal Medicine, Department of Internal Medicine and Centre of Excellence for Biomedical Research (CEBR), University of Genoa, Genoa, Italy
| | | | | | - Paulo Oliveira
- CNC - Center for Neuroscience and Cell Biology, UC-Biotech, University of Coimbra, Cantanhede, Portugal
| | - Frank G Perton
- Laboratory Center, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Piero Portincasa
- Department of Biomedical Sciences & Human Oncology, Clinica Medica "A. Murri", University of Bari Medical School, Bari, Italy
| | - Francisco Rodriguez-Panadero
- Medical-Surgical Unit of Respiratory Diseases, University Hospital Virgen del Rocio, Seville, Spain.,Institute of Biomedicine of Seville (IBiS), Seville, Spain
| | | | - Rudolph Schutte
- School of Allied Health, Faculty of Health, Education, Medicine and Social Care, Anglia Ruskin University, Chelmsford, UK
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Lai S, Mangiulli M, Perrotta AM, Di Lazzaro Giraldi G, Testorio M, Rosato E, Cianci R, Gigante A. Reduction in Heart Rate Variability in Autosomal Dominant Polycystic Kidney Disease. Kidney Blood Press Res 2019; 44:1142-1148. [PMID: 31550720 DOI: 10.1159/000502419] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 07/30/2019] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Cardiovascular disease is one of the main causes of morbidity and mortality in patients with autosomal dominant polycystic kidney disease (ADPKD). Autonomic dysfunction is associated with an increased risk for all cardiovascular events in the general population and can be evaluated with heart rate variability (HRV). OBJECTIVE To evaluate HRV in ADPKD patients with mild hypertension versus hypertensive patients with organ damage and healthy controls (HC). MATERIALS AND METHODS We have enrolled 65 patients: 21 ADPKD patients (10 males), 20 patients with hypertension (14 males), and 24 HC (10 males). Biochemical analysis, clinical evaluation, anthropometric data, intima-media thickness, 24-h ECG Holter recording, and echocardiography were investigated at the time of enrollment. RESULTS No significant differences in HRV parameters were found between ADPKD with mild hypertension and hypertensive patients with organ damage. The median of HRV variables in time domain as SDNN (global autonomic activity) was significantly lower in ADPKD and hypertensive patients than HC (p < 0.05). In the frequency domain analysis, low frequency (LF), which mainly reflects the sympathetic component, showed higher values in ADPKD and hypertensive patients than HC during the night (p < 0.01). During the night, the sympathovagal balance, LF/high frequency (HF), showed higher values in ADPKD and hypertensive patients than HC (p < 0.0001). Conversely, LF day was lower in ADPKD and hypertensive patients than HC (p < 0.01). HF, which mainly reflects the parasympathetic component, was lower in ADPKD and hypertensive patients during the night than HC (p < 0.0001). CONCLUSIONS HRV reduction is present in ADPKD patients with mild hypertension in the absence of organ damage. The evaluation of sympathovagal balance can provide novel information on the cardiovascular risk in ADPKD patients in addition to classical risk factors.
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Affiliation(s)
- Silvia Lai
- Nephrology Unit, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy,
| | - Marco Mangiulli
- Nephrology Unit, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Adolfo M Perrotta
- Nephrology Unit, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | | | - Massimo Testorio
- Nephrology Unit, Department of Gynecologic-Obstetrical Sciences and Urological Sciences, Sapienza University of Rome, Rome, Italy
| | - Edoardo Rosato
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Rosario Cianci
- Nephrology Unit, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Antonietta Gigante
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
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146
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Abstract
Despite accumulating evidence demonstrating the essential roles played by neuropeptides, it has proven challenging to use this information to develop therapeutic strategies. Peptidergic signaling can involve juxtacrine, paracrine, endocrine, and neuronal signaling, making it difficult to define physiologically important pathways. One of the final steps in the biosynthesis of many neuropeptides requires a single enzyme, peptidylglycine α-amidating monooxygenase (PAM), and lack of amidation renders most of these peptides biologically inert. PAM, an ancient integral membrane enzyme that traverses the biosynthetic and endocytic pathways, also affects cytoskeletal organization and gene expression. While mice, zebrafish, and flies lacking Pam (PamKO/KO ) are not viable, we reasoned that cell type-specific elimination of Pam expression would generate mice that could be screened for physiologically important and tissue-specific deficits. Conditional PamcKO/cKO mice, with loxP sites flanking the 2 exons deleted in the global PamKO/KO mouse, were indistinguishable from wild-type mice. Eliminating Pam expression in excitatory forebrain neurons reduced anxiety-like behavior, increased locomotor responsiveness to cocaine, and improved thermoregulation in the cold. A number of amidated peptides play essential roles in each of these behaviors. Although atrial natriuretic peptide (ANP) is not amidated, Pam expression in the atrium exceeds levels in any other tissue. Eliminating Pam expression in cardiomyocytes increased anxiety-like behavior and improved thermoregulation. Atrial and serum levels of ANP fell sharply in PAM myosin heavy chain 6 conditional knockout mice, and RNA sequencing analysis identified changes in gene expression in pathways related to cardiac function. Use of this screening platform should facilitate the development of therapeutic approaches targeted to peptidergic pathways.
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Costa-Ferreira W, Gomes-de-Souza L, Crestani CC. AT2 and MAS (but not AT1) angiotensinergic receptors in the medial amygdaloid nucleus modulate the baroreflex activity in rats. Pflugers Arch 2019; 471:1173-1182. [DOI: 10.1007/s00424-019-02301-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 07/26/2019] [Accepted: 08/01/2019] [Indexed: 01/27/2023]
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Yang K, Wang Y, Ding Y, Cui H, Zhou D, Chen L, Ma Z, Wang W, Zhang W, Luan J. Valsartan chronotherapy reverts the non-dipper pattern and improves blood pressure control through mediation of circadian rhythms of the renin-angiotensin system in spontaneous hypertension rats. Chronobiol Int 2019; 36:1058-1071. [PMID: 31096810 DOI: 10.1080/07420528.2019.1610419] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Kui Yang
- School of Pharmacy, Wannan Medical College, Wuhu, Anhui, P.R. China
- Department of Pharmacy, Yijishan Hospital of Wannan Medical College, Wuhu, Anhui, P.R. China
| | - Yaqin Wang
- School of Pharmacy, Wannan Medical College, Wuhu, Anhui, P.R. China
- Department of Pharmacy, Yijishan Hospital of Wannan Medical College, Wuhu, Anhui, P.R. China
| | - Yanyun Ding
- School of Pharmacy, Wannan Medical College, Wuhu, Anhui, P.R. China
- Department of Pharmacy, Yijishan Hospital of Wannan Medical College, Wuhu, Anhui, P.R. China
| | - Haiju Cui
- Department of Pharmacy, XuanCheng Vocational & Technical college, XuanCheng, Anhui, P.R. China
| | - Deixi Zhou
- Department of Pharmacy, Yijishan Hospital of Wannan Medical College, Wuhu, Anhui, P.R. China
| | - Lu Chen
- School of Pharmacy, Wannan Medical College, Wuhu, Anhui, P.R. China
| | - Zhangqing Ma
- School of Pharmacy, Wannan Medical College, Wuhu, Anhui, P.R. China
| | - Wusan Wang
- School of Pharmacy, Wannan Medical College, Wuhu, Anhui, P.R. China
| | - Wen Zhang
- School of Pharmacy, Wannan Medical College, Wuhu, Anhui, P.R. China
- Department of Pharmacy, Yijishan Hospital of Wannan Medical College, Wuhu, Anhui, P.R. China
| | - Jiajie Luan
- School of Pharmacy, Wannan Medical College, Wuhu, Anhui, P.R. China
- Department of Pharmacy, Yijishan Hospital of Wannan Medical College, Wuhu, Anhui, P.R. China
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Miglis MG, Muppidi S. Do astronauts get postural tachycardia syndrome? And other updates on recent autonomic research. Clin Auton Res 2019; 29:263-265. [PMID: 31089931 DOI: 10.1007/s10286-019-00613-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Accepted: 05/07/2019] [Indexed: 12/01/2022]
Affiliation(s)
- Mitchell G Miglis
- Stanford Neurosciences Health Center, 213 Quarry Road, 2nd Floor, Palo Alto, CA, 94304, USA
| | - Srikanth Muppidi
- Stanford Neurosciences Health Center, 213 Quarry Road, 2nd Floor, Palo Alto, CA, 94304, USA.
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Ethyl Acetate Fraction of Lannea microcarpa Engl. and K. Krause (Anacardiaceae) Trunk Barks Corrects Angiotensin II-Induced Hypertension and Endothelial Dysfunction in Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:9464608. [PMID: 31183001 PMCID: PMC6512010 DOI: 10.1155/2019/9464608] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 01/04/2019] [Accepted: 03/13/2019] [Indexed: 01/09/2023]
Abstract
Traditional remedies prepared from Lannea microcarpa leaves, barks, roots, and fruits are used to treat many diseases including hypertension. This study investigated whether oral administration of the ethyl acetate fraction of Lannea microcarpa trunk barks (LMAE) corrects angiotensin (Ang) II-induced hypertension in mice. Its effects on vascular function were specifically investigated. Experiments explored hemodynamic and echocardiographic parameters in vivo and vascular reactivity to acetylcholine (ACh) and CaCl2 ex vivo on isolated aortas. Mice received LMAE for 3 weeks (50 mg/kg/day) by oral gavage. In the last two weeks of treatment, mice were implanted with osmotic minipumps delivering NaCl (0.9%) or Ang II (0.5 mg/kg/day). LMAE completely prevented the increase in systolic and diastolic blood pressure induced by Ang II. Echocardiographic and kidney parameters were not affected by the different conditions. LMAE abrogated Ang II-induced impairment of ACh-induced relaxation without affecting that of sodium nitroprusside. LMAE also completely prevented CaCl2-induced contraction in KCl-exposed aorta ex vivo. The extract alone did not modify superoxide (O2 -) and nitric oxide (NO·) production in femoral arteries from control mice but significantly limited Ang II-induced O2 - production. These effects were associated with reduced expression of inducible isoform of cyclooxygenase- (COX-) 2 and nicotinamide adenine dinucleotide phosphate (NADPH) oxidase isoform NOX-2 in aortas. Finally, phytochemical analysis showed that LMAE contains sterols, triterpenes, coumarins, and anthraquinone. These results showed that LMAE prevents Ang II-induced hypertension and vascular dysfunction through a reduction of oxidative stress linked to COX-2 and NOX-2 pathway and inhibition of calcium entry. This study provides pharmacological basis of the empirical use of Lannea microcarpa trunk bark extract against hypertension.
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