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Pharmacological Activity of Eriodictyol: The Major Natural Polyphenolic Flavanone. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:6681352. [PMID: 33414838 PMCID: PMC7752289 DOI: 10.1155/2020/6681352] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 12/01/2020] [Accepted: 12/02/2020] [Indexed: 01/17/2023]
Abstract
Eriodictyol is a flavonoid that belongs to a subclass of flavanones and is widespread in citrus fruits, vegetables, and medicinally important plants. Eriodictyol has been anticipated to explain the method of its activity via multiple cellular signaling cascades. Eriodictyol is an effective natural drug source to maintain higher health standards due to its excellent therapeutic roles in neuroprotection, cardioprotective activity, hepatoprotective activity, antidiabetes and obesity, and skin protection and having highly analgesic, antioxidant, and anti-inflammatory effects, antipyretic and antinociceptive actions, antitumor activity, and much more. This review aims to highlight the modes of action of eriodictyol against various diseases via multiple cellular signaling pathways.
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Khlifi R, Dhaouefi Z, Toumia IB, Lahmar A, Sioud F, Bouhajeb R, Bellalah A, Chekir-Ghedira L. Erica multiflora extract rich in quercetin-3-O-glucoside and kaempferol-3-O-glucoside alleviates high fat and fructose diet-induced fatty liver disease by modulating metabolic and inflammatory pathways in Wistar rats. J Nutr Biochem 2020; 86:108490. [PMID: 32920086 DOI: 10.1016/j.jnutbio.2020.108490] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 06/28/2020] [Accepted: 08/13/2020] [Indexed: 12/17/2022]
Abstract
The wide morbidity of obesity has heightened interest in providing natural and safe compounds to maintain optimal health. The present study was designed to determine the chemical constituents and the effects of methanol leaf extract from Erica multiflora (M-EML) on mitigating high-fat and high-fructose diet (HFFD)-induced metabolic syndrome (MS). LC-MS/MS characterization of M-EML allowed the identification of 14 secondary metabolites and showed that quercetin-3-O-glucoside and kaempferol-3-O-glucoside were the main compounds of our extract. In the in vivo study, the oral administration of M-EML (250 mg/kg) during the last 4 weeks of the experimentation alleviated HFFD-induced obesity, insulin resistance (IR) and cardiovascular diseases. Thus, M-EML treatment significantly normalized body and liver weight, allowed to a sharp decline in plasma levels of TC, TG and LDL-c by 32%, 35% and 66%, respectively. Moreover, hepatic enzymes, total and direct bilirubin, lipase and uric acid levels have been diminished in treated group. Histopathology of the liver confirmed the changes induced by HFFD and the hepatoprotective effect of M-EML. The supply of M-EML reduced NO production and cellular lysosomal enzyme activity by 44% and 60%, respectively compared to HFFD. Besides, M-EML showed decreased pro-inflammatory cytokines levels (259.5±47.35 pg/ml and 56.08±1.56 pg/ml) of TNF-α and IL-6, respectively. In addition, M-EML reduced liver malondialdehyde (MDA) content and enhanced superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) activities. In contrast, these enzymatic activities have been disrupted in HFFD rats. Overall, M-EML prevented obesity through the modulation of metabolic syndrome, reducing inflammation and promoting antioxidant enzymes activities.
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Affiliation(s)
- Rihab Khlifi
- Unity of Bioactive and Natural Substances and Biotechnology UR17ES49, Faculty of Dental Medicine, University of Monastir, Avicenna Street, 5000 Monastir, Tunisia; Higher Institute of Biotechnology of Monastir, Avenue Tahar Hadded, BP 74, 5000 Monastir, Tunisia.
| | - Zaineb Dhaouefi
- Unity of Bioactive and Natural Substances and Biotechnology UR17ES49, Faculty of Dental Medicine, University of Monastir, Avicenna Street, 5000 Monastir, Tunisia
| | - Imène Ben Toumia
- Unity of Bioactive and Natural Substances and Biotechnology UR17ES49, Faculty of Dental Medicine, University of Monastir, Avicenna Street, 5000 Monastir, Tunisia; Faculty of Pharmacy, University of Monastir, Avicenna Street, 5000 Monastir, Tunisia
| | - Aida Lahmar
- Unity of Bioactive and Natural Substances and Biotechnology UR17ES49, Faculty of Dental Medicine, University of Monastir, Avicenna Street, 5000 Monastir, Tunisia
| | - Fairouz Sioud
- Unity of Bioactive and Natural Substances and Biotechnology UR17ES49, Faculty of Dental Medicine, University of Monastir, Avicenna Street, 5000 Monastir, Tunisia; Faculty of Pharmacy, University of Monastir, Avicenna Street, 5000 Monastir, Tunisia
| | - Rim Bouhajeb
- Unity of Bioactive and Natural Substances and Biotechnology UR17ES49, Faculty of Dental Medicine, University of Monastir, Avicenna Street, 5000 Monastir, Tunisia; Faculty of Pharmacy, University of Monastir, Avicenna Street, 5000 Monastir, Tunisia
| | - Ahlem Bellalah
- Department of Pathology, Fattouma Bourguiba University Hospital, Monastir, Tunisia
| | - Leila Chekir-Ghedira
- Unity of Bioactive and Natural Substances and Biotechnology UR17ES49, Faculty of Dental Medicine, University of Monastir, Avicenna Street, 5000 Monastir, Tunisia
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Boniface PK, Ferreira SB, Kaiser CR. Recent trends in phytochemistry, ethnobotany and pharmacological significance of Alchornea cordifolia (Schumach. & Thonn.) Muell. Arg. JOURNAL OF ETHNOPHARMACOLOGY 2016; 191:216-244. [PMID: 27296085 DOI: 10.1016/j.jep.2016.06.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 06/06/2016] [Accepted: 06/06/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Alchornea cordifolia (Schumach. & Thonn.) Muell. Arg. (Euphorbiaceae) (A. cordifolia) is widely distributed throughout tropical Africa, where it is used extensively in traditional medicine. Conditions for which the plant has enjoyed wide use are: coughs, gonorrhoea, infertility, prostatitis, bacterial infections, diarrhoea, ulcers, pain, inflammation, fever and bronchial troubles. This review summarizes the achievements of the investigations in traditional uses, ethnobotany, phytochemistry, biological activities and toxicological profile of A. cordifolia; this review also describes the shortcomings of studies on this herbal drug and thus serves as the basis of further scientific research and development of this traditional herbal drug. MATERIALS AND METHODS A. cordifolia-related information was collected from various resources including published articles in peer-reviewed journals, unpublished materials, textbooks, government survey reports and scientific databases such as Scifinder®, Pubmed, Science Direct, Wiley, Springer, ACS, Scielo, Web of Science and other web search instruments (Google, Yahoo), published on the subject from 1950 to 2016. 'The Plant List' (www.theplantlist.org) and 'Kew Royal Botanic Gardens' (mpns.kew.org) were used to validate the scientific name of the plant. RESULTS The literature revealed several reports on traditional uses, biological activities, chemical constituents and toxicological evaluation of A. cordifolia. The phytochemical information indicates identification of 95 compounds including fatty acids, terpenoids, flavonoids, phenolic acids, alkaloids, which exhibited various pharmacological activities such as wound healing, anti-inflammation, anticancer, antioxidant, immunomodulation, antidiarrhoeal, antimicrobial, antidepressant, hepatoprotective, antiplasmodial and anxiolytic. However, there are still significant gaps in the completeness of our understanding of A. cordifolia bioactivity, therapeutic value, and roles played by each of the numerous phytoconstituents. CONCLUSIONS The present review indicated that A. cordifolia is a valuable medicinal plant with multiple pharmacological effects. However, further research on the pharmacological mechanism of action of this plant is recommended in order to unravel the pharmacokinetics, pharmacodynamics, clinical relevance and toxicity of its extracts as well as constituents.
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Affiliation(s)
- Pone Kamdem Boniface
- Department of Organic Chemistry, Institute of Chemistry, University of Rio de Janeiro, Avenida Athos da Silveira Ramos, Rio de Janeiro (RJ) 21949-900, Brazil.
| | - Sabrina Baptista Ferreira
- Department of Organic Chemistry, Institute of Chemistry, University of Rio de Janeiro, Avenida Athos da Silveira Ramos, Rio de Janeiro (RJ) 21949-900, Brazil
| | - Carlos Roland Kaiser
- Department of Organic Chemistry, Institute of Chemistry, University of Rio de Janeiro, Avenida Athos da Silveira Ramos, Rio de Janeiro (RJ) 21949-900, Brazil
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Mokdad-Bzeouich I, Mustapha N, Sassi A, Bedoui A, Ghoul M, Ghedira K, Chekir-Ghedira L. Investigation of immunomodulatory and anti-inflammatory effects of eriodictyol through its cellular anti-oxidant activity. Cell Stress Chaperones 2016; 21:773-81. [PMID: 27250501 PMCID: PMC5003794 DOI: 10.1007/s12192-016-0702-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 05/04/2016] [Accepted: 05/13/2016] [Indexed: 10/21/2022] Open
Abstract
Many studies have been performed to assess the potential utility of natural products as immunomodulatory agents to enhance host responses against infection or to ameliorate immune-based pathologies. To determine whether eriodictyol has immunomodulatory effects and clarify which types of immune effector cells are stimulated in vitro, we investigated the stimulatory effect of eriodictyol on spleen cells isolated from BALB/c mice. Eriodictyol significantly stimulated splenocyte proliferation. However, only B lymphocytes (not T lymphocytes) could be stimulated by eriodictyol in a dose-related manner. Studies assessing potential effect of eriodictyol on innate immunity reported that eriodictyol enhanced significantly the killing activity of natural killer (NK) cells, T lymphocytes, and macrophages. We also demonstrated that eriodictyol inhibited nitric oxide (NO) production and lysosomal enzyme activity in murine peritoneal macrophages cultured ex-vivo, suggesting a potential anti-inflammatory effect in situ. Eriodictyol revealed also a cellular anti-oxidant activity in splenocytes and macrophages. Furthermore, eriodictyol increased catalase activity in spleen cells. From this data, it can be concluded that eriodictyol exhibited an immunomodulatory effect that could be ascribed in part to a cytoprotective effect related to its anti-oxidant activity.
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Affiliation(s)
- Imen Mokdad-Bzeouich
- Laboratory of Cellular and Molecular Biology, Faculty of Dental Medicine, University of Monastir, Avicenna Street, 5000, Monastir, Tunisia
- Unit of Bioactive and Natural Substances and Biotechnology UR12ES12, Faculty of Pharmacy, University of Monastir, Avicenna Street, 5000, Monastir, Tunisia
| | - Nadia Mustapha
- Laboratory of Cellular and Molecular Biology, Faculty of Dental Medicine, University of Monastir, Avicenna Street, 5000, Monastir, Tunisia
- Unit of Bioactive and Natural Substances and Biotechnology UR12ES12, Faculty of Pharmacy, University of Monastir, Avicenna Street, 5000, Monastir, Tunisia
| | - Aicha Sassi
- Laboratory of Cellular and Molecular Biology, Faculty of Dental Medicine, University of Monastir, Avicenna Street, 5000, Monastir, Tunisia
- Unit of Bioactive and Natural Substances and Biotechnology UR12ES12, Faculty of Pharmacy, University of Monastir, Avicenna Street, 5000, Monastir, Tunisia
| | - Ahmed Bedoui
- Laboratory of Cellular and Molecular Biology, Faculty of Dental Medicine, University of Monastir, Avicenna Street, 5000, Monastir, Tunisia
- Unit of Bioactive and Natural Substances and Biotechnology UR12ES12, Faculty of Pharmacy, University of Monastir, Avicenna Street, 5000, Monastir, Tunisia
| | - Mohamed Ghoul
- Laboratory of Biomolecular Engineering, National School of Agronomy and Food Industries, National Polytechnics Institute of Lorraine ENSAIA-INPL, Vandoeuvre les, 54505, Nancy, France
| | - Kamel Ghedira
- Unit of Bioactive and Natural Substances and Biotechnology UR12ES12, Faculty of Pharmacy, University of Monastir, Avicenna Street, 5000, Monastir, Tunisia
| | - Leila Chekir-Ghedira
- Laboratory of Cellular and Molecular Biology, Faculty of Dental Medicine, University of Monastir, Avicenna Street, 5000, Monastir, Tunisia.
- Unit of Bioactive and Natural Substances and Biotechnology UR12ES12, Faculty of Pharmacy, University of Monastir, Avicenna Street, 5000, Monastir, Tunisia.
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Nworu CS, Ihim SA, Okoye FBC, Esimone CO, Adikwu MU, Akah PA. Immunomodulatory and immunorestorative activities of β-D-glucan-rich extract and polysaccharide fraction of mushroom, Pleurutus tuberregium. PHARMACEUTICAL BIOLOGY 2015; 53:1555-1566. [PMID: 25857364 DOI: 10.3109/13880209.2014.991838] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
CONTEXT Some edible mushrooms are reputed to possess useful medicinal properties which are related to their ability to modulate the protective responses of the immune system. OBJECTIVE This study explored the immunomodulatory and immunorestorative properties of a hot aqueous extract (APTR) and of a β-d-glucan-enriched polysaccharide fraction (BGP) of a local oyster mushroom Pleurutus tuberregium (Fr.) Singer (Pleurotaceae). MATERIALS AND METHODS Immunomodulatory activities were investigated by assessing specific and none-specific immune responses in immunocompetent and immunosuppressed mice; as well as in vitro in culture of RAW264.7 macrophages stimulated with BGP. RESULTS In a homologous prime-boost immunization schedule, oral supplementation with APTR (100, 200, or 400 mg/kg) and BGP (100 or 200 mg/kg) resulted in significantly higher titers of total IgG, IgG1, and IgG2a by as much as 2-4-folds compared with the levels in untreated control mice. The mean hemagglutination (HA) titer in immunized mice that were treated with dexamethasone (DEX; 5 mg/kg) was significantly (p < 0.05) lower than the titer in groups that did not receive dexamethasone; however, short-term alternate day administration of APTR (200 mg/kg) to mice that had been immunosuppressed with 5 mg DEX/kg produced significant increases in secondary anti-SRBC antibody compared with the mean titer of mice immunized and treated with DEX alone. In in vitro studies, stimulation of RAW264.7 macrophages with BGP caused significant increases in iNO and TNF-α expression, and phagocytic functions of the cell. CONCLUSION Taken together, the results of these studies showed that P. tuberregium imparts immunostimulatory and immunorestorative effects that could be explained, in part, by the actions of its β-d-glucan constituent(s) on macrophages.
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Affiliation(s)
- Chukwuemeka S Nworu
- Department of Pharmacology and Toxicology, University of Nigeria , Nsukka , Nigeria
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Kouakou K, Schepetkin IA, Yapi A, Kirpotina LN, Jutila MA, Quinn MT. Immunomodulatory activity of polysaccharides isolated from Alchornea cordifolia. JOURNAL OF ETHNOPHARMACOLOGY 2013; 146:232-242. [PMID: 23291534 PMCID: PMC3577965 DOI: 10.1016/j.jep.2012.12.037] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 12/17/2012] [Accepted: 12/25/2012] [Indexed: 06/01/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Extracts of leaves from different species of the genus Alchornea have been used for centuries to treat a variety of medicinal problems in tropical Africa. However, little is known about the high-molecular weight active components conferring therapeutic properties to these extracts. OBJECTIVE The aim of this study was to evaluate the immunomodulatory activity of polysaccharides isolated from the leaves of Alchornea cordifolia. MATERIALS AND METHODS Water-soluble polysaccharides from leaves of Alchornea cordifolia were extracted and fractionated by DEAE-cellulose, Diaion HP-20, and size-exclusion chromatography. Molecular weight, sugar analysis, and other physical and chemical characterization of the fractions were performed. Immunomodulatory activity of the polysaccharide fractions was evaluated by determining their ability to induce monocyte/macrophage nitric oxide (NO) and cytokine production. Activation of mitogen activated protein kinases (MAPK) was also assessed using a phospho-MAPK array. Activation of nuclear factor κB (NF-κB) was measured using an alkaline phosphatase reporter gene assay in THP1-Blue monocytic cells. RESULTS Six polysaccharide fractions from Alchornea cordifolia were isolated. Fractions containing type II arabinogalactan had potent immunomodulatory activity. Particularly, the parent fraction AP-AU and its high-molecular weight sub-fraction AP-AU1 (average M(r) was estimated to be 39.5kDa) induced production of NO and cytokines [interleukin (IL)-1β, -6, -10, tumor necrosis factor (TNF)-α, and granulocyte-macrophage-colony stimulating factor (GM-CSF)] in human peripheral blood mononuclear cells and human and murine monocyte/macrophages cell lines in vitro. Furthermore, treatment with AP-AU1 induced phosphorylation of Akt2, p38δ/p38γ, p70S6K1, RSK2, and mTOR, as well as stimulation of NF-κB transcriptional activity. CONCLUSION Our results provide a molecular basis to explain a portion of the beneficial therapeutic properties of water extracts from Alchornea cordifolia leaves in traditional folk medicine of Africa.
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Affiliation(s)
- Koffi Kouakou
- Laboratoire d'Endocrinologie et Biologie de la Reproduction, Université de Cocody-Abidjan, Côte d'Ivoire
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Nworu CS, Akah PA, Okoye FBC, Onwuakagba CJ, Okorafor UO, Esimone CO. Supplementation with aqueous leaf extract ofMorinda lucidaenhances immunorestoration and upregulates the expression of cytokines and immunostimulatory markers. Immunol Invest 2012; 41:799-819. [DOI: 10.3109/08820139.2012.689406] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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