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Akindele AJ, Sowemimo A, Agunbiade FO, Sofidiya MO, Awodele O, Ade-Ademilua O, Orabueze I, Ishola IO, Ayolabi CI, Salu OB, Akinleye MO, Oreagba IA. Bioprospecting for Anti-COVID-19 Interventions From African Medicinal Plants: A Review. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221096968] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The emergence of the novel coronavirus (SARS-CoV-2) that emanated from Wuhan in China in 2019 has become a global concern. The current situation warrants ethnomedicinal drug discovery and development for delivery of phytomedicines with potential for the treatment of COVID-19. The aim of this review is to provide a detailed evaluation of available information on plant species used in African traditional medicines with antiviral, anti-inflammatory, immunomodulatory, and COVID-19 symptoms relieving effects. Literature from scientific databases such as Scopus, PubMed, Google scholar, African Journals OnLine (AJOL), Science Direct, and Web of Science were used for this review. A total of 35 of the 38 reviewed plants demonstrated a wide range of antiviral activities. Bryophyllum pinnatum, Aframomum melegueta, Garcinia kola, Sphenocentrum jollyanum, Adansonia digitata, Sutherlandia frutescens, Hibiscus sabdariffa, Moringa oleifera, and Nigella sativa possess a combination of antiviral, immunomodulatory, anti-inflammatory, and COVID-19 symptoms relieving activities. Nine, 13, and 10 of the plants representing 23.7%, 34.2%, and 26.3% of the plants studied had antiviral activity with 3 other activities, antiviral activity with 2 other activities, and antiviral with one pharmacological activity alone, respectively. The plants studied were reported to be relatively safe at the subchronic toxicity level, except for 2. The study provides baseline information on the pharmacological activities, toxicity, and chemical components of 9 African medicinal plants with antiviral, immunomodulatory, anti-inflammatory, and symptoms relieving activities, thereby making the plants candidates for further investigation for effectiveness against COVID-19.
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Affiliation(s)
- Abidemi J. Akindele
- African Center of Excellence for Drug Research, Herbal Medicine Development and Regulatory Science (ACEDHARS), University of Lagos (UNILAG), Lagos, Nigeria
- Department of Pharmacology, Therapeutics & Toxicology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Abimbola Sowemimo
- African Center of Excellence for Drug Research, Herbal Medicine Development and Regulatory Science (ACEDHARS), University of Lagos (UNILAG), Lagos, Nigeria
- Department of Pharmacognosy, Faculty of Pharmacy, University of Lagos, Lagos, Nigeria
| | - Foluso O. Agunbiade
- African Center of Excellence for Drug Research, Herbal Medicine Development and Regulatory Science (ACEDHARS), University of Lagos (UNILAG), Lagos, Nigeria
- Department of Chemistry, Faculty of Science, University of Lagos, Lagos, Nigeria
| | - Margaret O. Sofidiya
- African Center of Excellence for Drug Research, Herbal Medicine Development and Regulatory Science (ACEDHARS), University of Lagos (UNILAG), Lagos, Nigeria
- Department of Pharmacognosy, Faculty of Pharmacy, University of Lagos, Lagos, Nigeria
| | - Olufunsho Awodele
- African Center of Excellence for Drug Research, Herbal Medicine Development and Regulatory Science (ACEDHARS), University of Lagos (UNILAG), Lagos, Nigeria
- Department of Pharmacology, Therapeutics & Toxicology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Omobolanle Ade-Ademilua
- African Center of Excellence for Drug Research, Herbal Medicine Development and Regulatory Science (ACEDHARS), University of Lagos (UNILAG), Lagos, Nigeria
- Department of Botany, Faculty of Science, University of Lagos, Lagos, Nigeria
| | - Ifeoma Orabueze
- African Center of Excellence for Drug Research, Herbal Medicine Development and Regulatory Science (ACEDHARS), University of Lagos (UNILAG), Lagos, Nigeria
- Department of Pharmacognosy, Faculty of Pharmacy, University of Lagos, Lagos, Nigeria
| | - Ismail O. Ishola
- African Center of Excellence for Drug Research, Herbal Medicine Development and Regulatory Science (ACEDHARS), University of Lagos (UNILAG), Lagos, Nigeria
- Department of Pharmacology, Therapeutics & Toxicology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Christianah I. Ayolabi
- African Center of Excellence for Drug Research, Herbal Medicine Development and Regulatory Science (ACEDHARS), University of Lagos (UNILAG), Lagos, Nigeria
- Department of Microbiology, Faculty of Science, University of Lagos, Lagos, Nigeria
| | - Olumuyiwa B. Salu
- African Center of Excellence for Drug Research, Herbal Medicine Development and Regulatory Science (ACEDHARS), University of Lagos (UNILAG), Lagos, Nigeria
- Department of Medical Microbiology & Parasitology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Moshood O. Akinleye
- African Center of Excellence for Drug Research, Herbal Medicine Development and Regulatory Science (ACEDHARS), University of Lagos (UNILAG), Lagos, Nigeria
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Lagos, Lagos, Nigeria
| | - Ibrahim A. Oreagba
- African Center of Excellence for Drug Research, Herbal Medicine Development and Regulatory Science (ACEDHARS), University of Lagos (UNILAG), Lagos, Nigeria
- Department of Pharmacology, Therapeutics & Toxicology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Lagos, Nigeria
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Amelioration of Rheumatoid Arthritis by Anacardium occidentale via Inhibition of Collagenase and Lysosomal Enzymes. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:8869484. [PMID: 33224258 PMCID: PMC7669349 DOI: 10.1155/2020/8869484] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/09/2020] [Accepted: 10/19/2020] [Indexed: 12/19/2022]
Abstract
Anacardium occidentale (cashew) has been used in the traditional system of medicine for curing many inflammatory disorders. The present study investigates the antiarthritic effects of cashew leaves extract using the rat model of FCA-induced rheumatoid arthritis. Arthritic rats were treated with 100 and 200 mg/kg b.w. ethanolic extract of cashew leaves. Animals were sacrificed at day 23, and before sacrificing the animals, gross pathological changes were observed. Histopathology of ankle joint was evaluated with hematoxylin and eosin staining, whereas the serum levels of C-reactive protein (CRP) were evaluated by the agglutination method. Inflammatory cells and other hematological parameters were assessed by employing an automated hemocytometer and chemistry analyzer. Rheumatoid factor (Rf) and lysosomal enzymes levels were determined in blood. Results indicated that A. occidentale significantly decreased the CPR levels, macroscopic arthritic score, and rheumatoid factor as compared to the diseased group. Histopathological evaluation showed significant attenuation in bone erosion, joint inflammation, and pannus formation by plant extract. Treatment with A. occidentale significantly suppressed the levels of acid phosphatase, β-galactosidase, β-glucuronidase, N-acetylglucosaminidase, and collagenase. Moreover, A. occidentale significantly raised the HB levels and RBCs counts which were found depleted in the diseased group. The raised counts of total leukocytes, platelets, neutrophils, lymphocytes, and monocytes were also significantly decreased by treatment with plant extract. Comparative analysis showed that higher dose of A. occidentale demonstrated superior amelioration of rheumatoid arthritis as compared to low dose. In conclusion, A. occidentale possesses significant antiarthritic potential, which may be attributed to the suppression of lysosomal enzymes and collagenase levels.
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Mhlomi YN, Otunola GA, Afolayan AJ. Biochemical, Hematological and Histopathological Indices of Wistar Rats Fed Vitamin and Mineral Deficient Diets Supplemented with Moringa oleifera Leaf Meal. CURRENT NUTRITION & FOOD SCIENCE 2019. [DOI: 10.2174/1573401315666190618091752] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Moringa oleifera is currently and rapidly gaining superfood status.
Objective:
This study evaluated the effect of Moringa oleifera leaves (MOLM) on haematological,
biochemical and histopathology indices of rats fed with Vitamins and Minerals Deficient (VMD) diets.
Methods:
Twenty-five male Wistar rats (220-290g) were randomly assigned into 5 groups of 5 rats
each. The control (normal rat chow), remaining four diets were VMD plus MOLM at 0, 3, 5 and
10%. Haematological, biochemical and histopathological statuses were evaluated after 28 days.
Results:
Non-significant increase in RBC was observed in rats fed with the MOLM diets compared
to control. Rats on VMD diet had the lowest haemoglobin levels, whereas haemoglobin increased
with MOLM. No significant differences were observed in haematocrit, MCH, MCHC, platelets,
RDW and MPV in all the treatments and control group. However, VMD rats showed a decrease in
haemoglobin, and an increase in WBC and platelets. Electrolytes and glucose for all the treatments
and control were not significantly different, but, control and VMD10 diets rats showed significantly
higher values for creatinine compared to MOLM diets; total protein and albumin increased with
MOLM and were higher than in VMD and control rats. Serum activities of hepatic, cardiac and adrenal
marker enzymes were observed to be significantly lower in MOLM rats compared to VMD and
control. Mild congestion in VMD and VMD3 rats’ liver and diffused congestion in the kidney of
VMD diet rats were observed.
Conclusion:
The significantly high increase in platelet count in the VMD treated rats, indicative of
anemia and other physiological imbalances, highlights the effect of micronutrient (mineral and vitamins)
deficiencies in the diet. There is also the possibility that the anti-nutrients factors present in
Moringa oleifera prevented uptake and bioavailability of nutrients, since the MOLM did not undergo
any processing that could have removed or reduced these antinutrients. Further studies are still needed
on Moringa oleifera leaves to validate the bioavailability of nutrients from the plant.
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Affiliation(s)
- Yanga N. Mhlomi
- Medicinal Plants and Economic Development (MPED) Research Centre, Department of Botany, University of Fort Hare, Alice 5700, South Africa
| | - Gloria A. Otunola
- Medicinal Plants and Economic Development (MPED) Research Centre, Department of Botany, University of Fort Hare, Alice 5700, South Africa
| | - Anthony J. Afolayan
- Medicinal Plants and Economic Development (MPED) Research Centre, Department of Botany, University of Fort Hare, Alice 5700, South Africa
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Salehi B, Gültekin-Özgüven M, Kırkın C, Özçelik B, Morais-Braga MFB, Carneiro JNP, Bezerra CF, Silva TGD, Coutinho HDM, Amina B, Armstrong L, Selamoglu Z, Sevindik M, Yousaf Z, Sharifi-Rad J, Muddathir AM, Devkota HP, Martorell M, Jugran AK, Martins N, Cho WC. Anacardium Plants: Chemical,Nutritional Composition and Biotechnological Applications. Biomolecules 2019; 9:465. [PMID: 31505888 PMCID: PMC6769990 DOI: 10.3390/biom9090465] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 08/26/2019] [Accepted: 09/05/2019] [Indexed: 12/18/2022] Open
Abstract
Anacardium plants are native to the American tropical regions, and Anacardium occidentale L. (cashew tree) is the most recognized species of the genus. These species contain rich secondary metabolites in their leaf and shoot powder, fruits and other parts that have shown diverse applications. This review describes the habitat and cultivation of Anacardium species, phytochemical and nutritional composition, and their industrial food applications. Besides, we also discuss the secondary metabolites present in Anacardium plants which display great antioxidant and antimicrobial effects. These make the use of Anacardium species in the food industry an interesting approach to the development of green foods.
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Affiliation(s)
- Bahare Salehi
- Student Research Committee, School of Medicine, Bam University of Medical Sciences, Bam 44340847, Iran
| | - Mine Gültekin-Özgüven
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Maslak, 34469 Istanbul, Turkey
| | - Celale Kırkın
- Department of Gastronomy and Culinary Arts, School of Applied Sciences, Özyeğin University, Çekmeköy, 34794 Istanbul, Turkey
| | - Beraat Özçelik
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Maslak, 34469 Istanbul, Turkey
- Bioactive Research & Innovation Food Manufac. Indust. Trade Ltd., Katar Street, Teknokent ARI-3, B110, Sarıyer, 34467, Istanbul, Turkey
| | | | - Joara Nalyda Pereira Carneiro
- Laboratory of Applied Mycology of Cariri, Department of Biological Sciences, Cariri Regional University, Crato, Ceará-Brazil
| | - Camila Fonseca Bezerra
- Laboratory of Planning and Synthesis of Drugs, Department of Antibiotics, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - Teresinha Gonçalves da Silva
- Laboratory of Planning and Synthesis of Drugs, Department of Antibiotics, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - Henrique Douglas Melo Coutinho
- Laboratory of Microbiology and Molecular Biology, Department of Biological Chemistry, Regional University of Cariri, Crato, Brazil
| | - Benabdallah Amina
- Department of Agronomy, SAPVESA Laboratory, Nature and Life Sciences Faculty, University Chadli BENDJEDID, El-Tarf 36000, Algeria
| | - Lorene Armstrong
- State University of Ponta Grossa, Departament of Pharmaceutical Sciences, Ponta Grossa, Paraná, Brazil
| | - Zeliha Selamoglu
- Department of Medical Biology, Faculty of Medicine, Nigde Ömer Halisdemir University, Campus, Nigde, Turkey
| | - Mustafa Sevindik
- Department of Food Processing, Bahçe Vocational School, Osmaniye Korkut Ata University, 80500 Osmaniye, Turkey
| | - Zubaida Yousaf
- Department of Botany, Lahore College for Women University, Jail Road, Lahore 54000, Pakistan
| | - Javad Sharifi-Rad
- Zabol Medicinal Plants Research Center, Zabol University of Medical Sciences, Zabol 61615-585, Iran.
| | - Ali Mahmoud Muddathir
- Department of Horticulture, Faculty of Agriculture, University of Khartoum, Shambat 13314, Khartoum North, Sudan
| | - Hari Prasad Devkota
- School of Pharmacy, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
- Program for Leading Graduate Schools, Health Life Science: Interdisciplinary and Glocal Oriented (HIGO) Program, Kumamoto University, Kumamoto 860-8555, Japan
| | - Miquel Martorell
- Department of Nutrition and Dietetics, Faculty of Pharmacy, University of Concepción, Concepcion, Chile.
- Universidad de Concepción, Unidad de Desarrollo Tecnológico, UDT, Concepcion 4070386, Chile.
| | - Arun Kumar Jugran
- Govind Ballabh Pant National Institute of Himalayan Environment and Sustainable Development, Garhwal Regional Centre, Srinagar-246 174, Uttarakhand, India.
| | - Natália Martins
- Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal.
- Institute for Research and Innovation in Health (i3S), University of Porto, 4200-135 Porto, Portugal.
| | - William C Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Hong Kong SAR, China.
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Shehu A, Ponnapalli MG, Mahboob M, Prabhakar PV, Olatunji GA. New n-nonadecanoyl-β-sitosterol and other constituents from the stem-bark of Anacardium occidentale. Nat Prod Res 2019; 35:1357-1363. [PMID: 31397595 DOI: 10.1080/14786419.2019.1650353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
A new steroidal ester bearing n-nonadecanoyl moiety (1) and a mixture of isomeric cerebrosides (2) along with two known compounds were isolated from the methanol extract of the stem-bark of Anacardium occidentale. The structure of the new steroidal ester was determined as 3-n-nonadecanoyl-β-sitosterol on the basis of modern spectroscopic techniques (IR, ESI-MS, HR-ESIMS, 1D and 2D NMR) and chemical degradation studies. The structures of the known compounds were identified as gallic acid and tanacetene by comparison of the spectroscopic data with those of reported data. The mixture of cerebrosides was confirmed based on the analysis of 1D and 2D NMR. These compounds were evaluated for cytotoxicity against human cancer cell lines A549, SCOV3 and rat normal cell line NRK49f.
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Affiliation(s)
- Abdullahi Shehu
- Department of Chemistry, Faculty of Science, Federal University Lokoja, Lokoja, Kogi State, Nigeria
| | - Mangala Gowri Ponnapalli
- Centre for Natural Products and Traditional Knowledge, Indian Institute of Chemical Technology, Hyderabad, India
| | - M Mahboob
- Toxicology Unit, Biology Division, Indian Institute of Chemical Technology, Hydrabad, India
| | - P V Prabhakar
- Toxicology Unit, Biology Division, Indian Institute of Chemical Technology, Hydrabad, India
| | - Gabriel Ademola Olatunji
- Department of Industrial Chemistry, Faculty of Physical Science, University of Ilorin, Ilorin, Nigeria
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Yazbek PB, Tezoto J, Cassas F, Rodrigues E. Plants used during maternity, menstrual cycle and other women's health conditions among Brazilian cultures. JOURNAL OF ETHNOPHARMACOLOGY 2016; 179:310-31. [PMID: 26732633 DOI: 10.1016/j.jep.2015.12.054] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 12/24/2015] [Accepted: 12/25/2015] [Indexed: 05/27/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE For innumerous clinical cases related to women's health and precarious medical care in developing countries, a large repertoire of plants have been used as popular medicines in order to fill this gap, which in a certain way creates health risks to users, since pharmacological and toxicological tests are still insufficient to guarantee their efficacy and safety. Besides therapeutic use, abortive plants are broadly used in countries where abortion is prohibited, increasing that risk even more. In this way, ethnopharmacological studies that register plants used for women's health can contribute not only to the selection of potential bioactives, enriching the repertoire of drugs available to females, above all in public health systems, but also questioning the safety of products that are used without prescription. AIMS AND OBJECTIVES This review aims at determining plants applied by Brazilian cultures in the treatment of conditions related to maternity, menstrual cycle and other women's health particularities, and to supplement the lack of epidemiological data available to assess the health of indigenous, rural and other populations of Brazilian women. MATERIALS AND METHODS A literature review was conducted of the collection at the Ethnobotanical and Ethnopharmacological Center of the Federal University of São Paulo (period covered: 1965 to 2012). All of the 343 articles were consulted and 31 articles mentioning therapeutic uses of interest were selected. Relevant information was extracted to compose Table 1 - Maternity, Table 2 - Menstrual Cycle and Table 3 - Other Conditions. Data was statistically analyzed in order to generate the discussion about plants used in healing contexts by different Brazilian ethnicities. A bibliographic review was performed using the Scopus database to collect the following information about the most cited plants: ethnobotany/ethnopharmacology of non-Brazilian cultures for women's health conditions, pharmacology, toxicology, and adverse reactions. RESULTS A total of 319 species were cited for 22 indications related to women's health. Ninety-seven species were indicated for conditions related to maternity, 94 to the menstrual cycle and 232 to others. The same species could be present in more than one of these three categories. The most cited family was Fabaceae (13.5%), and the species were Ruta graveolens L. (1.76%) and Strychnos pseudoquina A. St.-Hil (1.76%). The most frequent part utilized, mode of preparation and route of administration were leaves (2.0%), tea (73.38%) and oral (87. 2%), respectively. The indications that showed the highest number of species were: to treat venereal diseases (69 species), abortive (54) and anti-inflammatory for the ovaries and/or uterus (54). According to our bibliographic survey, among the 19 most indicated species in this review, only four are also used by non-Brazilian cultures for conditions related to women's health; 25% of them were pharmacologically investigated and it was possible to validate their ethnopharmacological/ethnobotanical use, 10.5% have presented well-described adverse reactions and for 42.1% of these species toxicological studies were performed. CONCLUSION The survey raised important data about plants implemented in healing related to women's health conditions by Brazilian cultures and their practices. The compilation presented in this study enables the realization of further investigation regarding the development of herbal medicines and contributes to the incrementation of policies focused on these cultures. Further phytochemical, pharmacological and toxicological studies should be conducted, which will allow the discovery of pharmacological properties, bioactive constituents, and moreover, adequate posology, manner of use and adverse events.
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Affiliation(s)
- P B Yazbek
- Center for Ethnobotanical and Ethnopharmacological Studies-Institute of Environmental Sciences, Chemical and Pharmaceutical, Universidade Federal de São Paulo, Brazil.
| | - J Tezoto
- Center for Ethnobotanical and Ethnopharmacological Studies-Institute of Environmental Sciences, Chemical and Pharmaceutical, Universidade Federal de São Paulo, Brazil
| | - F Cassas
- Center for Ethnobotanical and Ethnopharmacological Studies-Institute of Environmental Sciences, Chemical and Pharmaceutical, Universidade Federal de São Paulo, Brazil
| | - E Rodrigues
- Center for Ethnobotanical and Ethnopharmacological Studies-Institute of Environmental Sciences, Chemical and Pharmaceutical, Universidade Federal de São Paulo, Brazil
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Araújo TSL, Costa DS, Sousa NA, Souza LKM, de Araújo S, Oliveira AP, Sousa FBM, Silva DA, Barbosa ALR, Leite JRSA, Medeiros JVR. Antidiarrheal activity of cashew GUM, a complex heteropolysaccharide extracted from exudate of Anacardium occidentale L. in rodents. JOURNAL OF ETHNOPHARMACOLOGY 2015; 174:299-307. [PMID: 26297843 DOI: 10.1016/j.jep.2015.08.020] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 07/18/2015] [Accepted: 08/18/2015] [Indexed: 06/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Anacardium occidentale L. (Anacardiaceae) is commonly known as the cashew tree. It is native to tropical America and extracts of the leaves, bark, roots, chestnut net and exudate have been traditionally used in northeast Brazil for the treatment of various diseases. The exudate of the cashew tree (cashew gum) has been exploited by locals since ancient times for multiple applications, including the treatment of diarrheal diseases. AIM OF THE STUDY The primary aim of the present study is to evaluate the antidiarrheal activity of cashew gum (CG), a complex heteropolysaccharide from the exudate of the cashew tree, using various models. MATERIALS AND METHODS The antidiarrheal activity of cashew gum (CG) against acute diarrhea was investigated using the castor oil-induced diarrhea model. The effects of CG on gastrointestinal transit and castor oil- and PGE2- induced enteropooling were also examined in rodents. In addition, the effect of CG against secretory diarrhea was investigated using a model of fluid secretion in cholera toxin-treated intestinal closed loops in live mice. RESULTS Cashew gum (30, 60, and 90 mg/kg, p.o.) showed a significant (P<0.05-0.01) antidiarrheal effect in rats with castor oil-induced diarrhea, inhibiting the total amount of stool and diarrheal stools. The 60 mg/kg dose of CG exhibited excellent antidiarrheal activity and significantly reduced the severity of diarrhea (diarrhea scores) in rats. CG (60 mg/kg) significantly (P<0.05) decreased the volume of castor oil- and PGE2-induced intestinal fluid secretion (enteropooling). In addition, similar to loperamide (standard drug, 5 mg/kg, p.o.), CG treatment reduced the distance traveled by a charcoal meal in the 30-min gastrointestinal transit model by interacting with opioid receptors. In cholera toxin-induced secretory diarrhea, CG (60 mg/kg) significantly inhibited the intestinal fluid secretion and decreased Cl(-) ion loss in the cholera toxin(-)treated isolated loops model of live mice by competitively binding to cholera toxin-GM1 receptors. CONCLUSIONS In conclusion, our results indicate that a complex heteropolysaccharide extracted from the exudate of A. occidentale L. has antidiarrheal activity in acute, inflammatory, and secretory diarrhea models, which could justify its traditional use in the treatment of diarrhea in northeast Brazil. The antidiarrheal activity might be explained by the capacity of CG to inhibit gastrointestinal motility and thereby reduce the accumulation of intestinal fluid and the secretion of water and chloride ions in the lumen of the intestine.
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Affiliation(s)
- Thiago S L Araújo
- Biotechnology and Biodiversity Center Research, BIOTEC, Post-graduation Program in Biotechnology, Federal University of Piauí, Parnaíba, Piauí, Brazil
| | - Douglas S Costa
- Medicinal Plant Research Center, NPPM, Post-graduation Program in Pharmacology, Federal University of Piauí, Teresina, Piauí, Brazil
| | - Nayara A Sousa
- Biotechnology and Biodiversity Center Research, BIOTEC, Post-graduation Program in Biotechnology, Federal University of Piauí, Parnaíba, Piauí, Brazil
| | - Luan K M Souza
- Post-graduation Program in Biomedical Sciences, Federal University of Piauí, Parnaíba, Piauí, Brazil
| | - Simone de Araújo
- Biotechnology and Biodiversity Center Research, BIOTEC, Post-graduation Program in Biotechnology, Federal University of Piauí, Parnaíba, Piauí, Brazil
| | - Ana Patrícia Oliveira
- Biotechnology and Biodiversity Center Research, BIOTEC, Post-graduation Program in Biotechnology, Federal University of Piauí, Parnaíba, Piauí, Brazil
| | - Francisca Beatriz M Sousa
- Biotechnology and Biodiversity Center Research, BIOTEC, Post-graduation Program in Biotechnology, Federal University of Piauí, Parnaíba, Piauí, Brazil
| | - Durcilene A Silva
- Biotechnology and Biodiversity Center Research, BIOTEC, Post-graduation Program in Biotechnology, Federal University of Piauí, Parnaíba, Piauí, Brazil
| | - André L R Barbosa
- Biotechnology and Biodiversity Center Research, BIOTEC, Post-graduation Program in Biotechnology, Federal University of Piauí, Parnaíba, Piauí, Brazil; Medicinal Plant Research Center, NPPM, Post-graduation Program in Pharmacology, Federal University of Piauí, Teresina, Piauí, Brazil; Post-graduation Program in Biomedical Sciences, Federal University of Piauí, Parnaíba, Piauí, Brazil
| | - José Roberto S A Leite
- Biotechnology and Biodiversity Center Research, BIOTEC, Post-graduation Program in Biotechnology, Federal University of Piauí, Parnaíba, Piauí, Brazil; Medicinal Plant Research Center, NPPM, Post-graduation Program in Pharmacology, Federal University of Piauí, Teresina, Piauí, Brazil; Post-graduation Program in Biomedical Sciences, Federal University of Piauí, Parnaíba, Piauí, Brazil
| | - Jand Venes R Medeiros
- Biotechnology and Biodiversity Center Research, BIOTEC, Post-graduation Program in Biotechnology, Federal University of Piauí, Parnaíba, Piauí, Brazil; Medicinal Plant Research Center, NPPM, Post-graduation Program in Pharmacology, Federal University of Piauí, Teresina, Piauí, Brazil; Post-graduation Program in Biomedical Sciences, Federal University of Piauí, Parnaíba, Piauí, Brazil.
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Chikezie P, Belonwu D, Ibegbulem C, Nwokocha M. Some Phytochemicals and Hydrophilic Vitamins of Anacardium occidentale. ACTA ACUST UNITED AC 2014. [DOI: 10.3923/rjphyto.2014.78.91] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Owumi SE, Odunola OA, Gbadegesin MA, Nulah KL. Protective effect of Juglans nigra on sodium arsenite-induced toxicity in rats. Pharmacognosy Res 2013; 5:183-8. [PMID: 23901214 PMCID: PMC3719260 DOI: 10.4103/0974-8490.112425] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Revised: 12/04/2012] [Accepted: 05/22/2013] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Consumption of arsenic contaminated water has been implicated in metalloid-induced carcinogenesis. Dietary intake of certain plant products with chemoprotective properties may protect against the onset of diseases and promote maintenance of health. OBJECTIVES We investigated the outcome of black walnut Juglans nigra (JN) consumption on sodium arsenite (SA)-induced toxicity in rats. MATERIALS AND METHODS WISTER ALBINO RATS WERE TREATED AS FOLLOWS: Control, SA only (positive control) (2.5 mg/kg body weight), JN only (100 mg/kg weight), and JN+SA coadministered. After 5 weeks animals were sacrificed whole blood, femur, liver and testis harvested were assessed for hepatic transaminases and clastogenicity. Histology of the liver, sperm morphology and quality were also assessed. Data were analyzed (ANOVA) and expressed as means ±SD. RESULTS SA treatment elevated hepatic transaminases level in serum (P < 0.05), induced histological changes in liver: fibroplasia and periportal hepatocytes infiltration by mononuclear cells. These changes were ameliorated by JN (P < 0.05) coadministration. SA induced micronuclei formation (P < 0.05). Again JN decreased (P < 0.05) micronuclei formation by 50%. Sperm count and motility decreased (P < 0.05) in all groups compared to control. CONCLUSION JN showed no protection against arsenite effect on sperm quality. Hepatoprotective and anticlastogenic effects were apparent suggesting a chemopreventive potential active against arsenite genotoxicity and chromosomal instability which have implication for metalloid-induced carcinogenesis.
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Affiliation(s)
- Solomon E. Owumi
- Department of Biochemistry, Cancer Research and Molecular Biology Laboratories, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Oyeronke A. Odunola
- Department of Biochemistry, Cancer Research and Molecular Biology Laboratories, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Michael A. Gbadegesin
- Department of Biochemistry, Cancer Research and Molecular Biology Laboratories, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Kathleen L. Nulah
- Department of Biochemistry, Cancer Research and Molecular Biology Laboratories, University of Ibadan, Ibadan, Oyo State, Nigeria
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Intravenous and subcutaneous toxicity and absorption kinetics in mice and dogs of the antileishmanial triterpene saponin PX-6518. Molecules 2013; 18:4803-15. [PMID: 23609628 PMCID: PMC6269738 DOI: 10.3390/molecules18044803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2013] [Revised: 04/07/2013] [Accepted: 04/19/2013] [Indexed: 11/16/2022] Open
Abstract
The intravenous (IV) and subcutaneous (SC) toxicity and absorption kinetics of the antileishmanial triterpene saponin PX-6518 and its active constituents maesabalide-III and -IV were studied in mice and dogs. A high-dose wash-out study of PX-6518 at 20 mg/kg SC for 5 days and a single low-dose wash-out study at 1, 2.5 or 5 mg/kg SC and IV with follow-up until day 35 after treatment were performed in mice. Beagle dogs received three escalating doses of maesabalide-III and -IV at weekly intervals (0.01, 0.1 and 0.5 mg/kg IV and maesabalide-III was also dosed SC at 0.1, 0.2 and 0.4 mg/kg). Endpoint measurements included clinical, hematological and serum biochemical parameters. Pathology and toxicokinetic studies were performed on the dogs. Whereas the neutrophils and aspartate aminotransferase and alanine aminotransferase levels were increased in the high-dose wash-out mouse study, these parameters did not change in the low-dose wash-out study. The dogs were far more susceptible than mice to liver toxicity (hepatocellular necrosis and elevated liver enzymes) and developed a painful inflammatory reaction at the SC injection site. Toxicokinetic analysis revealed a non dose-linear systemic availability with plasma concentrations above the antileishmanial IC₅₀ after only a single dose at 0.01 mg/kg IV or 0.1 mg/kg SC. Related to the long half-life (T(1/2) 71-91 h after SC dosing), repeated dosing at weekly intervals may result in drug accumulation and enhanced toxicity. It was decided not to pursue further drug development for PX-6518 because of the hepatotoxic risk.
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