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Adekunle YA, Samuel BB, Nahar L, Fatokun AA, Sarker SD. Anogeissus leiocarpus (DC.) Guill. & Perr. (Combretaceae): A review of the traditional uses, phytochemistry and pharmacology of African birch. Fitoterapia 2024; 176:105979. [PMID: 38692415 DOI: 10.1016/j.fitote.2024.105979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 04/16/2024] [Accepted: 04/25/2024] [Indexed: 05/03/2024]
Abstract
Anogeissus leiocarpus (DC.) Guill. & Perr. belongs to the family Combretaceae and is used both by African traditional medical practitioners and livestock rearers to treat diseases such as African trypanosomiasis, animal diarrhoea, asthma, cancer, cough, diabetes, dysentery, erectile dysfunction, fever, giardiasis, helminthiases, meningitis, menstrual disorders, monkeypox, oral infections, poliomyelitis, sickle cell anaemia, snake bites, toothache, urinary schistosomiasis, and yellow fever. Some of these activities have been associated with the presence of polyphenols in the plant which include ellagic acid derivatives, flavonoids, stilbenes, tannins, and triterpenes. Several bioactive molecules have been identified from A. leiocarpus. These include the main active constituents, ellagitannins, ellagic acid derivates, flavonoids and triterpenes. Pharmacological studies have confirmed its antibacterial, antifungal, antihyperglycemic, antihypertensive, antimalarial, antioxidative, antiparasitic, antitumour and anti-ulcer effects. The stem bark has been investigated mainly for biological activities and phytochemistry, and it is the most mentioned plant part highlighted by the traditional users in ethnomedicinal surveys. In vitro and in vivo models, which revealed a wide range of pharmacological actions against parasites causing helminthiasis, leishmaniasis, malaria and trypanosomiasis, have been used to study compounds from A. leiocarpus. Because of its uses in African traditional medicine and veterinary practices, A. leiocarpus has received considerable attention from researchers. The current review provides a comprehensive overview and critical appraisal of scientific reports on A. leiocarpus, covering its traditional uses, pharmacological activities and phytochemistry.
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Affiliation(s)
- Yemi A Adekunle
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Ibadan, Oduduwa Road, Ibadan 200132, Oyo State, Nigeria; Centre for Natural Products Discovery, School of Pharmacy and Biomolecular Sciences, Faculty of Science, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, United Kingdom; Department of Pharmaceutical and Medicinal Chemistry, College of Pharmacy, Afe Babalola University, Km 8.5, Afe Babalola Way, P.M.B. 5454, Ado-Ekiti, Ekiti State, Nigeria.
| | - Babatunde B Samuel
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Ibadan, Oduduwa Road, Ibadan 200132, Oyo State, Nigeria.
| | - Lutfun Nahar
- Laboratory of Growth Regulators, Palacký University and Institute of Experimental Botany, The Czech Academy of Sciences, Šlechtitelů 27, Olomouc 78371, Czech Republic.
| | - Amos A Fatokun
- Centre for Natural Products Discovery, School of Pharmacy and Biomolecular Sciences, Faculty of Science, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, United Kingdom
| | - Satyajit D Sarker
- Centre for Natural Products Discovery, School of Pharmacy and Biomolecular Sciences, Faculty of Science, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, United Kingdom
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Ugwah-Oguejiofor CJ, Nefai MS, Emmanuel MH, Alkali IY, Biambo AA, Lawal M, Ahmed AH, Muhammed A. Safety assessment of crude aqueous methanol extract of Annona senegalensis stem bark: acute and sub-chronic toxicity studies. Drug Chem Toxicol 2024:1-10. [PMID: 38682320 DOI: 10.1080/01480545.2024.2344640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 04/14/2024] [Indexed: 05/01/2024]
Abstract
Annona senegalensis Pers., (wild custard apple), is a shrub used traditionally to treat respiratory and skin diseases. Previous studies have demonstrated its anti-malaria, anti-snake envenomation and anti-cancer activities. However, its toxicological profile remains limited, particularly in male and female animals. This study aims to evaluate the safety of crude aqueous methanol extract of Annona senegalensis stem bark (AMEAS) through acute and sub-chronic toxicity studies. The stem bark of A. senegalensis was collected, air-dried, pulverized, and extracted using 70% methanol. Phytochemical screening, elemental analysis, and acute toxicity evaluation were carried out on AMEAS. Sub-chronic toxicity study was conducted on Wistar rats of both sexes at different doses administered orally for 28 days. Elemental analysis revealed the presence of heavy metals and essential mineral elements with the highest contents being calcium (59.88%) and potassium (25.39%). Acute toxicity testing showed no mortality up to 5000 mg/kg, suggesting an LD50 greater than 5000 mg/kg. In the sub-chronic toxicity study, no mortality or significant harmful effects were observed. The blood glucose decreased from 13.68 mMol/L at 250 mg/kg to 10.71 mMol/L at 1000 mg/kg, much lower than the distilled water group (17.06 mMol/L). In conclusion, the extract appeared to be well-tolerated, with no obvious adverse effects. AMEAS is rich in Calcium (Ca) and potassium (K). It has been shown to have LD50 greater than 5000 mg/kg and is assumed to be safe. On repeated use, AMEAS may cause hypoglycemia and weight loss which may be useful in managing diabetes and obesity respectively.
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Affiliation(s)
- Chinenye Jane Ugwah-Oguejiofor
- Department of Pharmacology and Toxicology, Faculty of Pharmaceutical Sciences, Usmanu Danfodiyo University, Sokoto, Nigeria
| | - Mathias Sylvester Nefai
- Department of Pharmacognosy and Ethnomedicine, Faculty of Pharmaceutical Sciences, Usmanu Danfodiyo University, Sokoto, Nigeria
| | - Mshelia Halilu Emmanuel
- Department of Pharmacognosy and Ethnomedicine, Faculty of Pharmaceutical Sciences, Usmanu Danfodiyo University, Sokoto, Nigeria
| | - Ibrahim Yusuf Alkali
- Department of Pharmacology and Toxicology, Faculty of Pharmaceutical Sciences, Usmanu Danfodiyo University, Sokoto, Nigeria
| | - Aminu Ahmed Biambo
- Department of Clinical Pharmacy and Pharmacy Practice, Faculty of Pharmaceutical Sciences, Usmanu Danfodiyo University, Sokoto, Nigeria
| | - Mansur Lawal
- Department of Pharmacognosy and Ethnomedicine, Faculty of Pharmaceutical Sciences, Usmanu Danfodiyo University, Sokoto, Nigeria
| | - Aliyu Hamidu Ahmed
- Department of Pharmacognosy and Ethnomedicine, Faculty of Pharmaceutical Sciences, Usmanu Danfodiyo University, Sokoto, Nigeria
| | - Achor Muhammed
- Department of Pharmaceutics and Pharmaceutical Microbiology, Faculty of Pharmaceutical Sciences, Usmanu Danfodiyo University, Sokoto, Nigeria
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Ngamsou Abdel K, Mala WA, Chimi PM, Funwi FP, Engoulou C, Messi Effa JA, Kouoguem Kamdem ME, Nzoyeuem Djonko F, Landry Fokoua U, Brice Adounga S, Marguerite Mbolo M. Ethnobotanical study and vulnerability of medicinal plants used against the symptoms of COVID-19 in the Lomié subdivision, East Region of Cameroon. Heliyon 2024; 10:e28247. [PMID: 38590891 PMCID: PMC10999872 DOI: 10.1016/j.heliyon.2024.e28247] [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: 03/09/2023] [Revised: 03/13/2024] [Accepted: 03/14/2024] [Indexed: 04/10/2024] Open
Abstract
Science has advanced to the point that traditional medicine is now a useful instrument for treating a wide range of human ailments. Indigenous peoples and local communities (IPLCs) do not, however, have access to the contemporary healthcare system. As a result, they turn to biological resources, which are the only readily available and accessible means of treating diseases like COVID-19 and flu outbreaks. In response to worldwide illnesses, this study aligns with the perspectives of traditional knowledge of biological resources, particularly therapeutic plants. Therefore, this study was aimed to document the use of the potential of medicinal plants by IPLCs in the Lomié subdivision to manage COVID-19 symptoms. In four villages in the Lomié subdivision Ekom, Payo, Eschiambor, and Kongo, ethnobotanical surveys, including semi-structured interviews on traditional usage of plants against Covid-19 symptoms, were carried out with 80 participants in order to meet all of the study specific objectives. For every species, a vulnerability index was established in order to evaluate the species fragility. To analyze the data, both descriptive and inferential statistics were applied. The findings show that the respondents are well aware of the symptoms of the COVID-19 and that gave them the ability to provide timely and efficient responses. The survey identified 43 species from 39 genera grouped in 28 families were used to treat COVID-19 symptoms, with bark being the most commonly used plant part (43.8%). Decoction was the most frequently used method of preparation (50%), and oral administration was the main route of administration (56.3%). Most of the plant species were harvested from secondary forests (44.2%), of which trees formed 48.8%. A total of 30 species were recorded to be vulnerable, with Entandrophragma cylindricum (Sprague) Sprague, Milicia excelsa (Welw.) Benth, Myrianthus arboreus P. Beauv., and Trichoscypha aborea (A. Chev.) A. Chev being the most vulnerable, with vulnerability index of 2.4. The results showed a strong non-causal relationship between vulnerability and the continuous and discontinuous explanatory parameters. The susceptibility of medicinal plants used to treat COVID-19 symptoms and the explanatory parameters had a statistically significant causal association, according to the binomial logistic regression model. In light of novel diseases like COVID-19, this study finds that traditional knowledge of medicinal plants is still widely held, especially among the indigenous and local population. It can also be very beneficial in the development of new medications for a variety of illnesses.
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Affiliation(s)
- Karimou Ngamsou Abdel
- Department of Plant Biology, Research Unit in Forest Ecology, University of Yaoundé I, Yaoundé, PO BOX 812, Cameroon
| | - William Armand Mala
- Department of Plant Biology, Research Unit in Forest Ecology, University of Yaoundé I, Yaoundé, PO BOX 812, Cameroon
| | - Pierre Marie Chimi
- Department of Plant Biology, Research Unit in Forest Ecology, University of Yaoundé I, Yaoundé, PO BOX 812, Cameroon
- Department of Plant Biology, Laboratory of Plant Genetics and Improvement, University of Yaoundé I, Yaoundé, PO BOX 812, Cameroon
| | - Forbi Preasious Funwi
- Department of Plant Biology, Research Unit in Forest Ecology, University of Yaoundé I, Yaoundé, PO BOX 812, Cameroon
| | - Constantin Engoulou
- Department of Plant Biology, Research Unit in Forest Ecology, University of Yaoundé I, Yaoundé, PO BOX 812, Cameroon
| | - Joseph Achille Messi Effa
- Department of Plant Biology, Research Unit in Forest Ecology, University of Yaoundé I, Yaoundé, PO BOX 812, Cameroon
| | | | - Fabrice Nzoyeuem Djonko
- Department of Biology, Laboratory of Botanic Systematic and Ecology, University of Yaoundé I, Yaoundé, PO BOX 812, Cameroon
| | - Ulrich Landry Fokoua
- Department of Biology, Laboratory of Mycology, University of Yaoundé I, Yaoundé, PO BOX 812, Cameroon
| | - Samuel Brice Adounga
- Laboratory of Phytopathology of Biotechnology and Environment Plant, Research Unit in Phytopathology and Protection of Plant, University of Yaoundé I, Yaoundé, PO BOX 812, Cameroon
| | - Marie Marguerite Mbolo
- Department of Plant Biology, Research Unit in Forest Ecology, University of Yaoundé I, Yaoundé, PO BOX 812, Cameroon
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Zaim SNN, Idris DR, Abdul Rahman H. COVID-19 home remedy consumption and perceived effectiveness among adult population in Brunei Darussalam: a PLS-SEM approach. BMC Complement Med Ther 2024; 24:82. [PMID: 38347546 PMCID: PMC10860244 DOI: 10.1186/s12906-024-04374-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 01/23/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND The Coronavirus Disease 2019 (COVID-19) caused by SARS-CoV-2 affects the respiratory system and causes severe acute respiratory infections. Several cultures have influenced the use of home remedies to ease mild symptoms of COVID-19 sometimes alongside conventional medicine. The aim of this study was to investigate the usage of COVID-19 home remedies among the adult population in Brunei. METHODS The study design was a cross-sectional study using an online survey and distributed nationwide. The statistical analysis of the data included descriptive statistics describing the sociodemographic characteristics of the respondents, their experience with COVID-19 infection, consumption of general home remedies and COVID-19 home remedy, their practice of COVID-19 home remedy use, and their attitude towards the general use of home remedy. Sub-group analysis including Pearson's chi-square test and Fisher's exact test was computed for the variables in relation to the COVID-19 home remedy use and the perceived effectiveness of the types of home remedy. Multivariate analysis including Partial Least Squares Structural Equation Modelling (PLS-SEM) was applied to determine the correlations between the factors and outcomes measured. P-value less than 0.05 is considered statistically significant. RESULTS There was a total of 864 eligible responses included in the study. The primary findings showed COVID-19 home remedy was used by 72.2% of the study participants. Most frequently used types of COVID-19 home remedy were cloves (37%), lemon (37%), and honey (23%). There was an infrequent usage of coconut (4.6%), eucalyptus oil (3.7%), habbatussauda (3.5%), traditional/ herbal cough syrup (2.4%), and turmeric (2.2%). The PLS-SEM demonstrated that 'Experience' appears to be a central endogenous variable that affects the decision on the use of COVID-19 home remedy. This relationship is mediated by 'Safety', 'Source', and 'Opinion' which have significant contributions to the outcome, accounting for 98.2% of the variance explained (R-square = 0.982). CONCLUSIONS The outcome of this study establishes the baseline prevalence of COVID-19 home remedy consumption among Bruneian residents and compared the previous study on Brunei's general use of traditional medicine. The present findings could help nurses and other healthcare professionals in Brunei understand the practice of Bruneian adults on the consumption of home remedies for COVID-19.
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Affiliation(s)
- Siti Nurzaimah Nazhirah Zaim
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Tungku Link Road, Gadong, BE1410, Brunei Darussalam.
| | - Deeni Rudita Idris
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Tungku Link Road, Gadong, BE1410, Brunei Darussalam
| | - Hanif Abdul Rahman
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Tungku Link Road, Gadong, BE1410, Brunei Darussalam
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Sharma D, Joshi M, Apparsundaram S, Goyal RK, Patel B, Dhobi M. Solanum nigrum L. in COVID-19 and post-COVID complications: a propitious candidate. Mol Cell Biochem 2023; 478:2221-2240. [PMID: 36689040 PMCID: PMC9868520 DOI: 10.1007/s11010-022-04654-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 12/30/2022] [Indexed: 01/24/2023]
Abstract
COVID-19 is caused by severe acute respiratory syndrome coronavirus-2, SARS-CoV-2. COVID-19 has changed the world scenario and caused mortality around the globe. Patients who recovered from COVID-19 have shown neurological, psychological, renal, cardiovascular, pulmonary, and hematological complications. In some patients, complications lasted more than 6 months. However, significantly less attention has been given to post-COVID complications. Currently available drugs are used to tackle the complications, but new interventions must address the problem. Phytochemicals from natural sources have been evaluated in recent times to cure or alleviate COVID-19 symptoms. An edible plant, Solanum nigrum, could be therapeutic in treating COVID-19 as the AYUSH ministry of India prescribes it during the pandemic. S. nigrum demonstrates anti-inflammatory, immunomodulatory, and antiviral action to treat the SARS-CoV-2 infection and its post-complications. Different parts of the plant represent a reduction in proinflammatory cytokines and prevent multi-organ failure by protecting various organs (liver, kidney, heart, neuro, and lung). The review proposes the possible role of the plant S. nigrum in managing the symptoms of COVID-19 and its post-COVID complications based on in silico docking and pharmacological studies. Further systematic and experimental studies are required to validate our hypothesis.
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Affiliation(s)
- Divya Sharma
- Delhi Pharmaceutical Sciences and Research University, 110017, New Delhi, India
| | - Mit Joshi
- Institute of Pharmacy, Nirma University, 382481, Ahmedabad, Gujarat, India
| | - Subbu Apparsundaram
- Delhi Pharmaceutical Sciences and Research University, 110017, New Delhi, India
| | - Ramesh K Goyal
- Delhi Pharmaceutical Sciences and Research University, 110017, New Delhi, India
| | - Bhoomika Patel
- National Forensic Sciences University, Sector-9, Gandhinagar-382007, Gujarat, India.
| | - Mahaveer Dhobi
- Delhi Pharmaceutical Sciences and Research University, 110017, New Delhi, India.
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Deutou Wondeu AL, Talom BM, Linardos G, Ngoumo BT, Bello A, Ndassi Soufo AM, Momo AC, Doll C, Tamuedjoun AT, Kiuate JR, Cappelli G, Russo C, Perno CF, Tchidjou HK, Scaramella L, Galgani A. The COVID-19 wave was already here: High seroprevalence of SARS-CoV-2 antibodies among staff and students in a Cameroon University. J Public Health Afr 2023; 14:2242. [PMID: 36798849 PMCID: PMC9926561 DOI: 10.4081/jphia.2023.2242] [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: 05/25/2022] [Accepted: 06/03/2022] [Indexed: 01/28/2023] Open
Abstract
Background Seroprevalence studies, to estimate the proportion of people that has been infected by SARS-CoV-2 are importance in African countries, where incidence is among the lowest in the world. Objective This study aimed at evaluating the exposure to SARS-CoV-2 within a university setting of Cameroon. Methods A cross-sectional study performed in December 2020 - December 2021, among students and staffs of the Evangelical University of Cameroon. COVID-19 antigen rapid detection test (RDT) was performed using Standard Q Biosensor, and one year after SARS-CoV-2 antibody-test was performed within the same population using RDT and chemiluminescence immunoassay (CLIA). Results 106 participants were enrolled (80% students), female sex was the most represented. Positivity to SARS-CoV-2 was 0.0% based on antigen RDTs. The seroprevalence of SARSCoV- 2 antibodies was estimated at 73.6% (95% CI. 64.5-81.0) for IgG and 1.9% (95% CI. 0.2-6.8) for IgM/IgG with RDTs, and 91.9% (95% CI. 84.7-96.4) for anti-nucleocapsid with CLIA. 95.3% (101) reported having developed at least one of the known COVID-19 symptoms (cough and headache being the most common). 90.3% (28) of people who experienced at least one of these symptoms developed IgG antibodies. 40.6% (43) of participants took natural herbs, whereas 55.7% (59) took conventional drugs. The most used herb was Zingiber officinale, while the most used drugs were antibiotics. Conclusion In this Cameroonian University community, SARS-CoV-2 seroprevalence is high, with a greater detection using advanced serological assays. This indicates a wide viral exposure, and the need to adequate control measures especially for those experiencing any related COVID-19 symptoms.
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Affiliation(s)
- Andrillene Laure Deutou Wondeu
- Laboratory of molecular biology and immunopathology, Evangelical University of Cameroon, Mbouo-Bandjoun, Cameroon,Department of Biology and Interdipartimental Center for Comparative Medicine, University of Rome Tor Vergata, Rome, Italy,Laboratory of molecular biology and immunopathology, Evangelical University of Cameroon, Mbouo-Bandjoun, Cameroon.
| | - Beatrice Metchum Talom
- Laboratory of molecular biology and immunopathology, Evangelical University of Cameroon, Mbouo-Bandjoun, Cameroon
| | | | - Barnes Tanetsop Ngoumo
- Laboratory of molecular biology and immunopathology, Evangelical University of Cameroon, Mbouo-Bandjoun, Cameroon
| | - Aïchatou Bello
- Laboratory of molecular biology and immunopathology, Evangelical University of Cameroon, Mbouo-Bandjoun, Cameroon
| | - Aurele Marc Ndassi Soufo
- Laboratory of molecular biology and immunopathology, Evangelical University of Cameroon, Mbouo-Bandjoun, Cameroon
| | - Aimé Cesaire Momo
- Laboratory of molecular biology and immunopathology, Evangelical University of Cameroon, Mbouo-Bandjoun, Cameroon
| | - Christian Doll
- Laboratory of molecular biology and immunopathology, Evangelical University of Cameroon, Mbouo-Bandjoun, Cameroon,Department of Trauma-, Hand- and Reconstructive Surgery, University Hospital Jena, Jena, Germany,Institute of Tropical Medicine and International Health, Charité - Universitätsmedizin Berlin, Corporate Member of Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - Alaric Talom Tamuedjoun
- Laboratory of molecular biology and immunopathology, Evangelical University of Cameroon, Mbouo-Bandjoun, Cameroon
| | - Jules-Roger Kiuate
- Laboratory of molecular biology and immunopathology, Evangelical University of Cameroon, Mbouo-Bandjoun, Cameroon
| | - Giulia Cappelli
- Institute for Biological Systems, National Research Council, Rome, Italy
| | | | | | | | - Lucia Scaramella
- Unit of Food Biotechnology, Istituto Zooprofilattico Sperimentale del Lazio e della Toscana “M.Aleandri”, Rome, Italy
| | - Andrea Galgani
- Department of Biology and Interdipartimental Center for Comparative Medicine, University of Rome Tor Vergata, Rome, Italy
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Comparative Analysis of the Efficiency of Medicinal Plants for the Treatment and Prevention of COVID-19. Int J Biomater 2022; 2022:5943649. [DOI: 10.1155/2022/5943649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/30/2022] [Accepted: 11/21/2022] [Indexed: 12/14/2022] Open
Abstract
The COVID-19 pandemic has once again prompted people to resort to the remedies of folk and alternative medicine. Medicinal plants, because of their chemical composition, pharmacological properties, and the action of biologically active substances, can stop and relieve the symptoms of the disease. The purpose of the work is a comparative flora analysis of medicinal plants to identify the most prospective plant and further production of a remedy for the avoidance, treatment, and rehabilitation of COVID-19. The search for prospective medicinal plants was performed by analyzing the literature in online databases: Web of Science, Scopus, Google Scholar, and PubMed, including official WHO media sites. According to recent studies related to COVID-19, a significant number of medicinal plants with anti-inflammatory, antiviral, and immunostimulatory effects have been identified. A comparative study of nine medicinal plants was conducted to determine the most suitable medicinal plant to treat coronavirus infection. According to the results of the comparative analysis, Chamaenerion angustifolium Seg. showed itself as the most prospective medicinal plant with the greatest pharmacological effect compared with other types of medicinal plants. Its therapeutic properties allow physiological relief of 18 symptoms of coronavirus infection. It is advisable to conduct further clinical trials for the treatment and rehabilitation of COVID-19 using preparations from this plant.
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Nasir Ahmed M, Hughes K. Role of ethno-phytomedicine knowledge in healthcare of COVID-19: advances in traditional phytomedicine perspective. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2022; 11:96. [PMID: 35966214 PMCID: PMC9362587 DOI: 10.1186/s43088-022-00277-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 07/25/2022] [Indexed: 12/26/2022] Open
Abstract
Background Since the outbreak of the COVID-19 virus, ethnomedicinal plants have been used in diverse geographical locations for their purported prophylactic and pharmacological effects. Medicinal plants have been relied on by people around the globe for centuries, as 80% of the world’s population rely on herbal medicines for some aspect of their primary health care needs, according to the World Health Organization.
Main body This review portrays advances in traditional phytomedicine by bridging the knowledge of ethno-phytomedicine and COVID-19 healthcare. Ethnomedicinal plants have been used for symptoms related to COVID-19 as antiviral, anti-infective, anti-inflammatory, anti-oxidant, antipyretic, and lung–gut immune boosters. Traditionally used medicinal plants have the ability to inhibit virus entry and viral assembly, bind to spike proteins, membrane proteins, and block viral replications and enzymes. The efficacy of traditional medicinal plants in the terms of COVID-19 management can be evaluated by in vitro, in vivo as well as different in silico techniques (molecular docking, molecular dynamics simulations, machine learning, etc.) which have been applied extensively to the quest and design of effective biotherapeutics rapidly. Other advances in traditional phytomedicines against COVID-19 are controlled clinical trials, and notably the roles in the gut microbiome. Targeting the gut microbiome via medicinal plants as prebiotics is also found to be an alternative and potential strategy in the search for a COVID-19 combat strategy. Conclusions Since medicinal plants are the sources of modern biotherapeutics development, it is essential to build collaborations among ethnobotanists, scientists, and technologists toward developing the most efficient and the safest adjuvant therapeutics against the pandemic of the twenty-first century, COVID-19.
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Dinga JN, Njoh AA, Gamua SD, Muki SE, Titanji VPK. Factors Driving COVID-19 Vaccine Hesitancy in Cameroon and Their Implications for Africa: A Comparison of Two Cross-Sectional Studies Conducted 19 Months Apart in 2020 and 2022. Vaccines (Basel) 2022; 10:vaccines10091401. [PMID: 36146479 PMCID: PMC9503216 DOI: 10.3390/vaccines10091401] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/15/2022] [Accepted: 08/23/2022] [Indexed: 11/16/2022] Open
Abstract
Many efficacious COVID-19 vaccines have been approved for general use but their ability to control the disease is being undermined by slow uptake. Resources are needed to persuade people to obtain a COVID-19 vaccine. Here we compare this present study and a previous one to assess the impact of the Cameroon government’s policy and efforts to reduce COVID-19 vaccine hesitancy after one year of implementation. After obtaining ethical clearance and informed consent, 6732 participants completed a questionnaire about COVID-19 vaccine hesitancy and acceptance. It was observed that the government’s policies and efforts reduced COVID-19 vaccine hesitancy significantly, but this was not enough to ensure the herd immunity necessary to control the disease. The risk factors associated with vaccine hesitancy were the consumption of traditional herbal remedies; living in an urban setting; being female, jobless or a student; working in the education sector; being a politician/policy maker/administrator, engineer or technician; medium income; no education/primary school/secondary/high school/professional training; and working in the informal sector. In contrast, people who were male, healthcare personnel, high-income earners, participants who do not consume traditional herbal remedies, infected or knowing someone who has been infected by COVID-19, and having a chronic illness or comorbidity, were associated with COVID-19 vaccine acceptance. Participants also gave several reasons they were either hesitant or willing to take the vaccine. A more rigorous surveillance system is needed to systematically monitor drivers of vaccine hesitancy, establish tailored interventions promoting vaccine acceptance, and evaluate the impact of these interventions.
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Affiliation(s)
- Jerome Nyhalah Dinga
- Michael Gahnyam Gbeugvat Foundation, Buea P.O. Box 63, Cameroon
- Biotechnology Unit, University of Buea, Buea P.O. Box 63, Cameroon
- Correspondence: ; Tel.: +237-233-322-134
| | - Andreas Ateke Njoh
- Expanded Programme on Immunization, Ministry of Public Health, Yaounde P.O. Box 2084, Cameroon
- School of Global Health and Bioethics, Euclid University, Bangui BP 157, Central African Republic
| | - Stanley Dobgima Gamua
- Michael Gahnyam Gbeugvat Foundation, Buea P.O. Box 63, Cameroon
- Biotechnology Unit, University of Buea, Buea P.O. Box 63, Cameroon
| | | | - Vincent P. K. Titanji
- Biotechnology Unit, University of Buea, Buea P.O. Box 63, Cameroon
- Faculty of Science, University of Buea, Buea P.O. Box 63, Cameroon
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Schapovalova O, Gorlova A, de Munter J, Sheveleva E, Eropkin M, Gorbunov N, Sicker M, Umriukhin A, Lyubchyk S, Lesch KP, Strekalova T, Schroeter CA. Immunomodulatory effects of new phytotherapy on human macrophages and TLR4- and TLR7/8-mediated viral-like inflammation in mice. Front Med (Lausanne) 2022; 9:952977. [PMID: 36091684 PMCID: PMC9450044 DOI: 10.3389/fmed.2022.952977] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 07/15/2022] [Indexed: 11/17/2022] Open
Abstract
Background While all efforts have been undertaken to propagate the vaccination and develop remedies against SARS-CoV-2, no satisfactory management of this infection is available yet. Moreover, poor availability of any preventive and treatment measures of SARS-CoV-2 in economically disadvantageous communities aggravates the course of the pandemic. Here, we studied a new immunomodulatory phytotherapy (IP), an extract of blackberry, chamomile, garlic, cloves, and elderberry as a potential low-cost solution for these problems given the reported efficacy of herbal medicine during the previous SARS virus outbreak. Methods The key feature of SARS-CoV-2 infection, excessive inflammation, was studied in in vitro and in vivo assays under the application of the IP. First, changes in tumor-necrosis factor (TNF) and lnteurleukin-1 beta (IL-1β) concentrations were measured in a culture of human macrophages following the lipopolysaccharide (LPS) challenge and treatment with IP or prednisolone. Second, chronically IP-pre-treated CD-1 mice received an agonist of Toll-like receptors (TLR)-7/8 resiquimod and were examined for lung and spleen expression of pro-inflammatory cytokines and blood formula. Finally, chronically IP-pre-treated mice challenged with LPS injection were studied for “sickness” behavior. Additionally, the IP was analyzed using high-potency-liquid chromatography (HPLC)-high-resolution-mass-spectrometry (HRMS). Results LPS-induced in vitro release of TNF and IL-1β was reduced by both treatments. The IP-treated mice displayed blunted over-expression of SAA-2, ACE-2, CXCL1, and CXCL10 and decreased changes in blood formula in response to an injection with resiquimod. The IP-treated mice injected with LPS showed normalized locomotion, anxiety, and exploration behaviors but not abnormal forced swimming. Isoquercitrin, choline, leucine, chlorogenic acid, and other constituents were identified by HPLC-HRMS and likely underlie the IP immunomodulatory effects. Conclusions Herbal IP-therapy decreases inflammation and, partly, “sickness behavior,” suggesting its potency to combat SARS-CoV-2 infection first of all via its preventive effects.
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Affiliation(s)
- Olesia Schapovalova
- Caparica Faculdade de Ciencias e Tecnologia da Universidade Nova de Lisboa, NOVA Lisbon University, Lisbon, Portugal
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University and Neuroplast BV, Maastricht, Netherlands
| | - Anna Gorlova
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University and Neuroplast BV, Maastricht, Netherlands
- Laboratory of Psychiatric Neurobiology, Institute of Molecular Medicine and Department of Normal Physiology, Sechenov First Moscow State Medical University, Moscow, Russia
- Laboratory of Cognitive Dysfunctions, Federal Budgetary Institute of General Pathology and Pathophysiology, Moscow, Russia
| | - Johannes de Munter
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University and Neuroplast BV, Maastricht, Netherlands
| | - Elisaveta Sheveleva
- Laboratory of Psychiatric Neurobiology, Institute of Molecular Medicine and Department of Normal Physiology, Sechenov First Moscow State Medical University, Moscow, Russia
- Laboratory of Cognitive Dysfunctions, Federal Budgetary Institute of General Pathology and Pathophysiology, Moscow, Russia
| | - Mikhail Eropkin
- Department of Etiology and Epidemiology, Smorodintsev Research Institute of Influenza, St. Petersburg State University, Saint Petersburg, Russia
| | - Nikita Gorbunov
- Division of Molecular Psychiatry, Center of Mental Health, University of Würzburg, Würzburg, Germany
| | - Michail Sicker
- Rehabilitation Research Unit of Clinic of Bad Kreuzbach, Bad Kreuzbach, Germany
| | - Aleksei Umriukhin
- Laboratory of Psychiatric Neurobiology, Institute of Molecular Medicine and Department of Normal Physiology, Sechenov First Moscow State Medical University, Moscow, Russia
| | - Sergiy Lyubchyk
- Caparica Faculdade de Ciencias e Tecnologia da Universidade Nova de Lisboa, NOVA Lisbon University, Lisbon, Portugal
- EIGES Center, Universidade Lusofona, Lisboa, Portugal
| | - Klaus-Peter Lesch
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University and Neuroplast BV, Maastricht, Netherlands
- Division of Molecular Psychiatry, Center of Mental Health, University of Würzburg, Würzburg, Germany
| | - Tatyana Strekalova
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University and Neuroplast BV, Maastricht, Netherlands
- Laboratory of Cognitive Dysfunctions, Federal Budgetary Institute of General Pathology and Pathophysiology, Moscow, Russia
- Division of Molecular Psychiatry, Center of Mental Health, University of Würzburg, Würzburg, Germany
- Department of Pharmacology, University of Oxford, Oxford, United Kingdom
- *Correspondence: Tatyana Strekalova
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Brahmi F, Vejux A, Ghzaiel I, Ksila M, Zarrouk A, Ghrairi T, Essadek S, Mandard S, Leoni V, Poli G, Vervandier-Fasseur D, Kharoubi O, El Midaoui A, Atanasov AG, Meziane S, Latruffe N, Nasser B, Bouhaouala-Zahar B, Masmoudi-Kouki O, Madani K, Boulekbache-Makhlouf L, Lizard G. Role of Diet and Nutrients in SARS-CoV-2 Infection: Incidence on Oxidative Stress, Inflammatory Status and Viral Production. Nutrients 2022; 14:2194. [PMID: 35683996 PMCID: PMC9182601 DOI: 10.3390/nu14112194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 05/10/2022] [Accepted: 05/17/2022] [Indexed: 11/17/2022] Open
Abstract
Coronavirus illness (COVID-19) is an infectious pathology generated by intense severe respiratory syndrome coronavirus 2 (SARS-CoV-2). This infectious disease has emerged in 2019. The COVID-19-associated pandemic has considerably affected the way of life and the economy in the world. It is consequently crucial to find solutions allowing remedying or alleviating the effects of this infectious disease. Natural products have been in perpetual application from immemorial time given that they are attested to be efficient towards several illnesses without major side effects. Various studies have shown that plant extracts or purified molecules have a promising inhibiting impact towards coronavirus. In addition, it is substantial to understand the characteristics, susceptibility and impact of diet on patients infected with COVID-19. In this review, we recapitulate the influence of extracts or pure molecules from medicinal plants on COVID-19. We approach the possibilities of plant treatment/co-treatment and feeding applied to COVID-19. We also show coronavirus susceptibility and complications associated with nutrient deficiencies and then discuss the major food groups efficient on COVID-19 pathogenesis. Then, we covered emerging technologies using plant-based SARS-CoV-2 vaccine. We conclude by giving nutrient and plants curative therapy recommendations which are of potential interest in the COVID-19 infection and could pave the way for pharmacological treatments or co-treatments of COVID-19.
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Affiliation(s)
- Fatiha Brahmi
- Laboratory Biomathématique, Biochimie, Biophysique et Scientométrie, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia 06000, Algeria; (K.M.); (L.B.-M.)
| | - Anne Vejux
- Department of Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism, University of Bourgogne Franche-Comte, 21000 Dijon, France; (A.V.); (I.G.); (M.K.); (S.E.); (N.L.)
| | - Imen Ghzaiel
- Department of Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism, University of Bourgogne Franche-Comte, 21000 Dijon, France; (A.V.); (I.G.); (M.K.); (S.E.); (N.L.)
- Lab-NAFS ‘Nutrition-Functional Food & Vascular Health’, Faculty of Medicine, LR12ES05, University Monastir, Monastir 5000, Tunisia;
| | - Mohamed Ksila
- Department of Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism, University of Bourgogne Franche-Comte, 21000 Dijon, France; (A.V.); (I.G.); (M.K.); (S.E.); (N.L.)
- Laboratory of Neurophysiology, Cellular Physiopathology and Valorisation of Biomolecules, (LR18ES03), Department of Biology, Faculty of Sciences, University Tunis El Manar, Tunis 2092, Tunisia; (T.G.); (O.M.-K.)
| | - Amira Zarrouk
- Lab-NAFS ‘Nutrition-Functional Food & Vascular Health’, Faculty of Medicine, LR12ES05, University Monastir, Monastir 5000, Tunisia;
- Laboratory of Biochemistry, Faculty of Medicine, University of Sousse, Sousse 4000, Tunisia
| | - Taoufik Ghrairi
- Laboratory of Neurophysiology, Cellular Physiopathology and Valorisation of Biomolecules, (LR18ES03), Department of Biology, Faculty of Sciences, University Tunis El Manar, Tunis 2092, Tunisia; (T.G.); (O.M.-K.)
| | - Soukena Essadek
- Department of Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism, University of Bourgogne Franche-Comte, 21000 Dijon, France; (A.V.); (I.G.); (M.K.); (S.E.); (N.L.)
- Laboratory Neuroscience and Biochemistry, University of Hassan 1st, Settat 26000, Morocco;
| | - Stéphane Mandard
- Lipness Team and LipSTIC LabEx, UFR Sciences de Santé, INSERM/University of Bourgogne Franche-Comté LNC UMR1231, 21000 Dijon, France;
| | - Valerio Leoni
- Department of Laboratory Medicine, University of Milano-Bicocca, Azienda Socio Sanitaria Territoriale Brianza ASST-Brianza, Desio Hospital, Via Mazzini 1, 20833 Desio, Italy;
| | - Giuseppe Poli
- Department of Clinical and Biological Sciences, San Luigi Hospital, University of Turin, 10043 Orbassano (Turin), Italy;
| | - Dominique Vervandier-Fasseur
- Team OCS, Institute of Molecular Chemistry of University of Burgundy (ICMUB UMR CNRS 6302), University of Bourgogne Franche-Comté, 21000 Dijon, France;
| | - Omar Kharoubi
- Laboratory of Experimental Biotoxicology, Biodepollution and Phytoremediation, Faculty of Life and Natural Sciences, University Oran 1 ABB, Oran 31000, Algeria;
| | - Adil El Midaoui
- Department of Pharmacology and Physiology, Faculty of Medicine, University of Montreal, Montreal, QC H3C 3J7, Canada;
- Faculty of Sciences and Techniques, Moulay Ismail University of Meknes, Errachidia 52000, Morocco
| | - Atanas G. Atanasov
- Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, Jastrzebiec, 05-552 Magdalenka, Poland;
| | - Smail Meziane
- Institut Européen des Antioxydants, 1b Rue Victor de Lespinats, 54230 Neuves-Maison, France;
| | - Norbert Latruffe
- Department of Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism, University of Bourgogne Franche-Comte, 21000 Dijon, France; (A.V.); (I.G.); (M.K.); (S.E.); (N.L.)
| | - Boubker Nasser
- Laboratory Neuroscience and Biochemistry, University of Hassan 1st, Settat 26000, Morocco;
| | - Balkiss Bouhaouala-Zahar
- Laboratory of Biomolecules, Venoms and Theranostic Applications, Pasteur Institute of Tunis, University of Tunis El Manar, Tunis 1002, Tunisia;
| | - Olfa Masmoudi-Kouki
- Laboratory of Neurophysiology, Cellular Physiopathology and Valorisation of Biomolecules, (LR18ES03), Department of Biology, Faculty of Sciences, University Tunis El Manar, Tunis 2092, Tunisia; (T.G.); (O.M.-K.)
| | - Khodir Madani
- Laboratory Biomathématique, Biochimie, Biophysique et Scientométrie, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia 06000, Algeria; (K.M.); (L.B.-M.)
- Centre de Recherche en Technologie des Industries Agroalimentaires, Route de Targua Ouzemour, Bejaia 06000, Algeria
| | - Lila Boulekbache-Makhlouf
- Laboratory Biomathématique, Biochimie, Biophysique et Scientométrie, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia 06000, Algeria; (K.M.); (L.B.-M.)
| | - Gérard Lizard
- Department of Biochemistry of the Peroxisome, Inflammation and Lipid Metabolism, University of Bourgogne Franche-Comte, 21000 Dijon, France; (A.V.); (I.G.); (M.K.); (S.E.); (N.L.)
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Donhouedé JCF, Salako KV, Gandji K, Idohou R, Tohoun R, Hounkpèvi A, Ribeiro N, Ribeiro-Barros AI, Glèlè Kakaï R, Assogbadjo AE. Food and medicinal uses of Annona senegalensis Pers.: a country-wide assessment of traditional theoretical knowledge and actual uses in Benin, West Africa. JOURNAL OF ETHNOBIOLOGY AND ETHNOMEDICINE 2022; 18:10. [PMID: 35246189 PMCID: PMC8894562 DOI: 10.1186/s13002-022-00510-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 02/16/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND The growing interest for more natural products in food and health industries has led to increasing research on traditional knowledge related to plants. While theoretical knowledge (TK) on the uses of a species informs on the wide spectrum of potential uses of that species, actual uses (AU) highlight their potential being actually used. Distinguishing between the two is important when reporting ethnobotanical studies. However, studies often equated AU and TK, sometimes misleading conclusions, and decision-making. This study assessed TK, AU, and difference between TK and AU of Annona senegalensis and how each is related to factors such as age, sex, sociolinguistic group, and main activity in Benin republic. METHODS Data were collected through semi-structured individual interviews (n = 755) and analyzed using among others, relative frequency of citation (RFC), and use-value (UV). RESULTS A total of 168 theoretical uses were recorded but only 92 were "actually" practiced, of which four were food and 88 medicinal uses. TK and AU were positively correlated. As expected, TK was also significantly higher than AU, indicating that some potential uses of the species are still not valued. Sociolinguistic group and main activity, not age and sex, were the main factors influencing TK, AU, and difference between TK and AU. The highest TK was found with Bariba sociolinguistic group and the highest AU with Otamari. Fruits (100%) and flowers (10%) were the most used organs for food, while leaves (40%) and roots (7%) were mostly used for medicinal purposes. The most common food uses were consumption of the ripe fruits (100%), and food seasoning with flowers (10%). The most cited diseases were malaria (28%) and intestinal worms (8%). CONCLUSIONS The study illustrated the importance of differentiating between TK and AU. It documented the wide range of the uses of A. senegalensis, while highlighting its most common uses, and the need to better valorize and sustainably manage the species.
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Affiliation(s)
- Janine C F Donhouedé
- Department of Forest Engineering, Faculty of Agronomy and Forest Engineering, Eduardo Mondlane University, P.O. Box: 257, Maputo, Mozambique.
- Laboratoire de Biomathématiques et d'Estimations Forestières, Faculty of Agronomic Sciences, University of Abomey-Calavi, 04 BP: 1525, Cotonou, Benin.
| | - Kolawolé Valère Salako
- Laboratoire de Biomathématiques et d'Estimations Forestières, Faculty of Agronomic Sciences, University of Abomey-Calavi, 04 BP: 1525, Cotonou, Benin
| | - Kisito Gandji
- Laboratoire de Biomathématiques et d'Estimations Forestières, Faculty of Agronomic Sciences, University of Abomey-Calavi, 04 BP: 1525, Cotonou, Benin
| | - Rodrigue Idohou
- Laboratoire de Biomathématiques et d'Estimations Forestières, Faculty of Agronomic Sciences, University of Abomey-Calavi, 04 BP: 1525, Cotonou, Benin
- Ecole de Gestion et de Production Végétale et Semencière, National University of Agriculture, Kétou, Benin
| | - Roméo Tohoun
- Laboratoire de Biomathématiques et d'Estimations Forestières, Faculty of Agronomic Sciences, University of Abomey-Calavi, 04 BP: 1525, Cotonou, Benin
| | - Achille Hounkpèvi
- Laboratoire de Biomathématiques et d'Estimations Forestières, Faculty of Agronomic Sciences, University of Abomey-Calavi, 04 BP: 1525, Cotonou, Benin
| | - Natasha Ribeiro
- Department of Forest Engineering, Faculty of Agronomy and Forest Engineering, Eduardo Mondlane University, P.O. Box: 257, Maputo, Mozambique
| | - Ana I Ribeiro-Barros
- Plant Stress & Biodiversity Lab-Forest Research Center (CEF), School of Agriculture, University of Lisbon, 1349-017, Lisbon, Portugal
| | - Romain Glèlè Kakaï
- Laboratoire de Biomathématiques et d'Estimations Forestières, Faculty of Agronomic Sciences, University of Abomey-Calavi, 04 BP: 1525, Cotonou, Benin
| | - Achille Ephrem Assogbadjo
- Laboratoire de Biomathématiques et d'Estimations Forestières, Faculty of Agronomic Sciences, University of Abomey-Calavi, 04 BP: 1525, Cotonou, Benin
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13
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Plants and Natural Products with Activity against Various Types of Coronaviruses: A Review with Focus on SARS-CoV-2. Molecules 2021; 26:molecules26134099. [PMID: 34279439 PMCID: PMC8271932 DOI: 10.3390/molecules26134099] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 06/14/2021] [Accepted: 06/15/2021] [Indexed: 02/06/2023] Open
Abstract
COVID-19 is a pandemic disease caused by the SARS-CoV-2 virus, which is potentially fatal for vulnerable individuals. Disease management represents a challenge for many countries, given the shortage of medicines and hospital resources. The objective of this work was to review the medicinal plants, foods and natural products showing scientific evidence for host protection against various types of coronaviruses, with a focus on SARS-CoV-2. Natural products that mitigate the symptoms caused by various coronaviruses are also presented. Particular attention was placed on natural products that stabilize the Renin–Angiotensin–Aldosterone System (RAAS), which has been associated with the entry of the SARS-CoV-2 into human cells.
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