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Vitamin C inhibits Angiotensin-Converting Enzyme-2 in Isolated Rat Aortic Ring

Amssayef et al., Cardiovascular & Hematological Disorders-Drug Targets, doi:10.2174/1871529X21666211214153308
Dec 2021  
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Vitamin C for COVID-19
6th treatment shown to reduce risk in September 2020, now with p = 0.00000004 from 74 studies, recognized in 12 countries.
Lower risk for mortality, ICU, hospitalization, and recovery.
No treatment is 100% effective. Protocols combine treatments.
5,300+ studies for 116 treatments. c19early.org
Ex Vivo study showing vitamin C inhibiting vascular ACE2.
Amssayef et al., 14 Dec 2021, peer-reviewed, 3 authors.
Ex Vivo studies are an important part of preclinical research, however results may be very different in vivo.
This PaperVitamin CAll
DOI record: { "DOI": "10.2174/1871529x21666211214153308", "ISSN": [ "1871-529X" ], "URL": "http://dx.doi.org/10.2174/1871529x21666211214153308", "abstract": "<jats:sec>\n<jats:title>Aims:</jats:title>\n<jats:p> The study aimed to assess the inhibitory effect of Vitamin C on angiotensin-converting enzyme 2.\n</jats:p>\n</jats:sec>\n<jats:sec>\n<jats:title>Background:</jats:title>\n<jats:p>Coronavirus disease 2019 (COVID-19) is a disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which uses angiotensin-converting enzyme 2 (ACE-II)\nas the first route to infect human cells. Accordingly, agents with potential inhibition of ACE-II receptors might be effective in the prevention and management of COVID-19.</jats:p>\n</jats:sec>\n<jats:sec>\n<jats:title>Objective:</jats:title>\n<jats:p>The goal of this work was to assess the possible inhibitory effect of ACE-II on ascorbic\nacid using an ex vivo approach based on the inhibition of diminazene-induced vasorelaxation.</jats:p>\n</jats:sec>\n<jats:sec>\n<jats:title>Material and Methods:</jats:title>\n<jats:p>In the present study, diminazene was used as a known specific inhibitor of\nACE-II. Then, the vasorelaxant effect of ascorbic acid on diminazene-induced relaxation was examined using isolated aortic rings. All experiments of this study were evaluated on isolated aortic\nrings precontracted by epinephrine.</jats:p>\n</jats:sec>\n<jats:sec>\n<jats:title>Results:</jats:title>\n<jats:p>The results confirmed that diminazene-induced vasorelaxation in a dose-dependent manner. More interestingly, ascorbic acid inhibited diminazene-induced vasorelaxation in a dose-dependent manner.\n</jats:p>\n</jats:sec>\n<jats:sec>\n<jats:title>Conclusion:</jats:title>\n<jats:p> This investigation provides valuable experimental proof of the efficacy of ascorbic\nacid (Vitamin C) on inhibiting ex vivo vascular angiotensin-converting enzyme II, which is known\namong the pharmacological targets of anti-Covid-19 drugs.</jats:p>\n</jats:sec>", "alternative-id": [ "LiveAll1" ], "author": [ { "affiliation": [ { "name": "Department of Biology, Team of Ethnopharmacology and Pharmacognosy, Faculty of Sciences and Techniques, Errachidia, Moulay Ismail, University of Meknes, BP 509, Boutalamine, 52000 Errachidia, Morocco" } ], "family": "Amssayef", "given": "Ayoub", "sequence": "first" }, { "affiliation": [ { "name": "Department of Biology, Team of Ethnopharmacology and Pharmacognosy, Faculty of Sciences and Techniques, Errachidia, Moulay Ismail, University of Meknes, BP 509, Boutalamine, 52000 Errachidia, Morocco" } ], "family": "Bouadid", "given": "Ismail", "sequence": "additional" }, { "affiliation": [ { "name": "Department of Biology, Team of Ethnopharmacology and Pharmacognosy, Faculty of Sciences and Techniques, Errachidia, Moulay Ismail, University of Meknes, BP 509, Boutalamine, 52000 Errachidia, Morocco" } ], "family": "Eddouks", "given": "Mohamed", "sequence": "additional" } ], "container-title": [ "Cardiovascular & Hematological Disorders-Drug Targets" ], "content-domain": { "crossmark-restriction": false, "domain": [] }, "created": { "date-parts": [ [ 2021, 12, 15 ] ], "date-time": "2021-12-15T06:28:11Z", "timestamp": 1639549691000 }, "deposited": { "date-parts": [ [ 2021, 12, 15 ] ], "date-time": "2021-12-15T06:28:15Z", "timestamp": 1639549695000 }, "indexed": { "date-parts": [ [ 2021, 12, 19 ] ], "date-time": "2021-12-19T11:20:43Z", "timestamp": 1639912843185 }, "is-referenced-by-count": 0, "issn-type": [ { "type": "print", "value": "1871-529X" } ], "issued": { "date-parts": [ [ 2021, 12, 14 ] ] }, "language": "en", "link": [ { "URL": "http://eurekaselect.com/article/download/198905", "content-type": "application/pdf", "content-version": "vor", "intended-application": "text-mining" }, { "URL": "https://www.eurekaselect.com/198905/article", "content-type": "text/html", "content-version": "vor", "intended-application": "text-mining" }, { "URL": "http://eurekaselect.com/article/download/198905", "content-type": "unspecified", "content-version": "vor", "intended-application": "similarity-checking" } ], "member": "965", "original-title": [], "prefix": "10.2174", "published": { "date-parts": [ [ 2021, 12, 14 ] ] }, "published-print": { "date-parts": [ [ 2021, 12, 14 ] ] }, "publisher": "Bentham Science Publishers Ltd.", "reference-count": 0, "references-count": 0, "relation": {}, "score": 1, "short-container-title": [ "CHDDT" ], "short-title": [], "source": "Crossref", "subject": [ "Cardiology and Cardiovascular Medicine", "Pharmacology", "Hematology", "Molecular Medicine", "General Medicine" ], "subtitle": [], "title": [ "Vitamin C inhibits Angiotensin-Converting Enzyme-2 in Isolated Rat Aortic Ring" ], "type": "journal-article", "volume": "21" }
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