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Yahyazadeh A, Başak F, Demirel MA. Efficacy of coenzyme Q10 and curcumin on antioxidant enzyme activity and hippocampal alteration following exposure to cyclophosphamide in male rat. Tissue Cell 2024; 86:102296. [PMID: 38184921 DOI: 10.1016/j.tice.2023.102296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 12/03/2023] [Accepted: 12/27/2023] [Indexed: 01/09/2024]
Abstract
Coenzyme Q10 (KQ10) and curcumin (KUR) supplements are extensively used for their potential antioxidant, anticancer, and antiapoptotic properties. The present study investigated the neuroprotective potential of KQ10 and KUR against the side effect of cyclophosphamide (SF) (150 mg/kg) on the hippocampus of male Wistar albino rats. Forty-nine 10-12 weeks old rats were randomly divided into seven groups: control, olive oil (OL), SF, KQ10, KUR, SF+KQ10, and SF+KUR. Our biochemical finding showed a significant decrease in superoxide dismutase (SOD) level in the SF group compared to the control group (p < 0.05). There was also a significant reduction in the total number of the hippocampal pyramidal neurons in the CA1, CA2, and CA1-3 regions in the SF group compared to the control group (p < 0.05). In the SF+KQ10 group, we found a significant increase in serum SOD level and the total number of the hippocampal pyramidal neurons in the CA1, CA2, and CA1-3 regions compared to the SF group (p < 0.05). Immunohistochemical and histopathological examination exhibited noteworthy findings in the hippocampus tissues. Our findings showed that KQ10 administration significantly mitigated the hippocampal alteration caused by SF through enhancing antioxidant enzyme activity and reducing apoptosis. However, we found no protective activity of KUR on the hippocampus tissue, which may be due to its weak antioxidative activity.
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Affiliation(s)
- Ahmad Yahyazadeh
- Department of Histology and Embryology, Faculty of Medicine, Karabuk University, Karabuk, Turkey.
| | - Feyza Başak
- Department of Histology and Embryology, Faculty of Medicine, Karabuk University, Karabuk, Turkey
| | - Mürşide Ayşe Demirel
- Laboratory Animals Breeding and Experimental Research Centre, Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Gazi University, Turkey
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Aissous I, Benrebai M, Ameddah S, Menad A, Erenler R, Benayache S, Benayache F. The preventive effects of Centaurea maroccana Ball. extract against oxidative stress induced by cisplatin in mice brains: in vitro and in vivo studies. Drug Chem Toxicol 2023; 46:1162-1175. [PMID: 36330673 DOI: 10.1080/01480545.2022.2139841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 09/28/2022] [Accepted: 10/15/2022] [Indexed: 11/06/2022]
Abstract
Since antiquity, Centaurea species have been used in folk medicine to treat several diseases owing to their potential biological activities that distinguish this genus such as antioxidant, anticancer, and anti-inflammatory effect. The current study aimed to investigate the possible neuroprotective effects of the n-butanol extract of Centaurea maroccana (BECM) against cisplatin (CP) induced neurotoxicity in mice. BECM's potential neuroprotective properties were studied in vitro and in vivo models. Male Swiss albino mice were orally received BECM (200 mg/kg) for 10 days before a single intraperitoneal injection of cisplatin (8 mg/kg). Vitamin E (100 mg/kg) was given daily by gavage as a positive control. In vitro results revealed that BECM inhibited lipid peroxidation (LPO) levels and acetylcholinesterase (AChE) activity. In vivo findings showed that BECM pretreatment was able to regulate lactate dehydrogenase (LDH) levels and to improve CP-induced cholinergic dysfunction by inhibiting AChE activity in mice brains. Moreover, BECM attenuated CP-provoked oxidative stress by suppressing LPO levels, increasing total antioxidant capacity (TAC) and enhancing the activities of antioxidant enzymes (catalase (CAT), superoxide dismutase (SOD), reduced glutathione (GSH), glutathione peroxidase (GPx) and glutathione S-transferase (GST)) in both brain cytosolic and mitochondrial fractions. The histological analysis exhibited neurotoprotective effect of BECM by protecting the cerebral cortex and reducing the histomorphological alterations resulted by cisplatin. Interestingly, our extract achieved neuroprotection comparable to vitamin E in most evaluated parameters. It appears that protective potency of BECM against CP-induced neurotoxicity could be related to its richness in polyphenols confirmed by liquid-chromatography tandem mass spectrometry analysis (LC-MS/MS).
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Affiliation(s)
- Imane Aissous
- Laboratory of Biology and Environment, Department of Animal Biology, Faculty of Sciences of Nature and Life, University of Mentouri Constantine 1, Constantine, Algeria
| | - Mouad Benrebai
- Laboratory of Biology and Environment, Department of Animal Biology, Faculty of Sciences of Nature and Life, University of Mentouri Constantine 1, Constantine, Algeria
| | - Souad Ameddah
- Laboratory of Biology and Environment, Department of Animal Biology, Faculty of Sciences of Nature and Life, University of Mentouri Constantine 1, Constantine, Algeria
| | - Ahmed Menad
- Laboratory of Biology and Environment, Department of Animal Biology, Faculty of Sciences of Nature and Life, University of Mentouri Constantine 1, Constantine, Algeria
| | - Ramazan Erenler
- Plant Research Laboratory, Department of Chemistry, Faculty of Arts and Sciences, Tokat Gaziosmanpasa University, Tokat, Turkey
| | - Samir Benayache
- Research Unit, Valorization of Natural Resources, Bioactive Molecules, Physicochemical and Biological Analysis (VARENBIOMOL), University of Mentouri Constantine 1, Constantine, Algeria
| | - Fadila Benayache
- Research Unit, Valorization of Natural Resources, Bioactive Molecules, Physicochemical and Biological Analysis (VARENBIOMOL), University of Mentouri Constantine 1, Constantine, Algeria
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Batiha GES, Tene ST, Teibo JO, Shaheen HM, Oluwatoba OS, Teibo TKA, Al-kuraishy HM, Al-Garbee AI, Alexiou A, Papadakis M. The phytochemical profiling, pharmacological activities, and safety of malva sylvestris: a review. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:421-440. [PMID: 36418467 PMCID: PMC9898411 DOI: 10.1007/s00210-022-02329-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 11/05/2022] [Indexed: 11/26/2022]
Abstract
Malva sylvestris is a plant commonly found in Europe, Asia, and Africa. The leaves and flowers of this plant have been used for centuries in traditional medicine to treat various ailments such as cough, cold, diarrhoea, and constipation. Google Scholar, PubMed, Scopus, and Web of Science were used to search for relevant material on the phytochemical profiling and pharmacologic activities of Malva sylvestris. The techniques used in phytochemical profiling and the pharmacologic activity of each compound were extracted from the included studies, including in vitro, in vivo, and clinical studies. The phytochemical analysis of Malva sylvestris revealed that the leaves and flowers are the most commonly used parts of the plant and contain various bioactive compounds such as flavonoids, mucilages, terpenoids, phenol derivatives, coumarins, sterols, tannins, saponins, and alkaloids. These phytochemicals are responsible for the many pharmacological activities of Malva sylvestris, such as anti-inflammatory, antimicrobial, hepatoprotective, laxative, antiproliferative and antioxidant properties. This review has presented an overview of the antinociceptive and anti-inflammatory activities and the cytotoxic effects of Malva sylvestris on different types of cancer cells. It has also summarised the work on developing copper oxide nanoparticles using Malva sylvestris leaf extract and its potential use in food and medicine. This review aims to highlight the traditional uses, phytochemistry, pharmacological activities, and safety of Malva sylvestris.
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Affiliation(s)
- Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, 22511, AlBeheira, Egypt.
| | - Stephano Tambo Tene
- Research Unit of Biochemistry of Medicinal Plants, Food Sciences and Nutrition, Department of Biochemistry, Faculty of Science, University of Dschang, Dschang, Cameroon
| | - John Oluwafemi Teibo
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.
| | - Hazem M. Shaheen
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, 22511 AlBeheira Egypt
| | - Oyerinde Samson Oluwatoba
- Department of Veterinary Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Ilorin, Ilorin, Nigeria
| | - Titilade Kehinde Ayandeyi Teibo
- Department of Maternal-Infant and Public Health Nursing, College of Nursing, Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo Brazil
| | - Hayder M. Al-kuraishy
- Department of Clinical Pharmacology and Therapeutic Medicine, College of Medicine, Almustansiriyiah University, Bagh-Dad, Iraq
| | - Ali I. Al-Garbee
- Department of Clinical Pharmacology and Therapeutic Medicine, College of Medicine, Almustansiriyiah University, Bagh-Dad, Iraq
| | - Athanasios Alexiou
- Department of Science and Engineering, Novel Global Community Educational Foundation, Hebersham, NSW 2770 Australia ,AFNP Med, 1030 Wien, Austria
| | - Marios Papadakis
- Department of Surgery II, University Hospital Witten-Herdecke, University of Witten-Herdecke, Heusnerstrasse 40, 42283, Wuppertal, Germany.
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He WJ, Chen N, Yu ZL, Sun Q, He Q, Zeng WC. Effect of Structure Complexity of Catechins on the Properties of Glutenin: the Rule, Action Mechanism and Application. FOOD BIOPHYS 2022. [DOI: 10.1007/s11483-022-09744-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Izadi F, Farrokhzad A, Tamizifar B, Tarrahi MJ, Entezari MH. Effect of sour tea supplementation on liver enzymes, lipid profile, blood pressure, and antioxidant status in patients with non-alcoholic fatty liver disease: A double-blind randomized controlled clinical trial. Phytother Res 2020; 35:477-485. [PMID: 32909326 DOI: 10.1002/ptr.6826] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 07/05/2020] [Accepted: 07/07/2020] [Indexed: 12/13/2022]
Abstract
The aim of this study was to evaluate the efficacy of sour tea supplementation in patients with nonalcoholic fatty liver disease (NAFLD). Seventy NAFLD patients were enrolled in this randomized, double-blind, placebo-controlled clinical trial. Participants received sour tea in the form of a 450 mg capsule or a placebo capsule daily for 8 weeks. Anthropometric indices, liver enzymes, lipid profile, blood pressure, and antioxidant status were evaluated at the baseline and at the end of the study. Sixty-one participants completed the study. After 8 weeks, sour tea administration significantly decreased serum triglyceride (TG) (p = .03), alanine aminotransferase (ALT) (p = .01), and aspartate aminotransferase (AST) (p = .004) levels compared with the placebo. In addition, sour tea supplementation resulted in a significant reduction in systolic blood pressure (SBP) (p = .03) and diastolic blood pressure (DBP) (p = .04), and a significant increase in serum total antioxidant capacity (TAC) levels (p ˂ .001) compared with the placebo. However, no significant changes in anthropometric measures, total cholesterol (TC), low-density lipoprotein cholesterol (LDL-c), and high-density lipoprotein cholesterol (HDL-c) levels were observed after sour tea supplementation compared with the placebo (p > .05). Sour tea supplementation may be effective in improving serum TG, liver enzymes, and blood pressure in patients diagnosed with NAFLD. Further studies are needed to address the exact mechanism of action of these effects.
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Affiliation(s)
- Fatemeh Izadi
- Food Security Research Center and Department of Clinical Nutrition, School of Nutrition and Food Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Babak Tamizifar
- Isfahan Gastroenterology and Hepatology Research Center (lGHRC), Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Javad Tarrahi
- Department of Epidemiology and Biostatistics, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Hassan Entezari
- Food Security Research Center and Department of Clinical Nutrition, School of Nutrition and Food Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
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Oboh G, Adeoyo OO, Ademosun AO, Ogunsuyi OB, Agunloye OM. Effect of combinations of caffeine and caffeic acid on key enzymes linked to hypertension (in vitro). ACTA ACUST UNITED AC 2018. [DOI: 10.1007/s13596-018-0313-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Abat JK, Kumar S, Mohanty A. Ethnomedicinal, Phytochemical and Ethnopharmacological Aspects of Four Medicinal Plants of Malvaceae Used in Indian Traditional Medicines: A Review. MEDICINES (BASEL, SWITZERLAND) 2017; 4:E75. [PMID: 29057840 PMCID: PMC5750599 DOI: 10.3390/medicines4040075] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 10/12/2017] [Accepted: 10/16/2017] [Indexed: 12/23/2022]
Abstract
The ethnomedicinal values of plants form the basis of the herbal drug industry. India has contributed its knowledge of traditional system medicines (Ayurveda and Siddha) to develop herbal medicines with negligible side effects. The World Health Organization has also recognized the benefits of drugs developed from natural products. Abutilon indicum, Hibiscus sabdariffa, Sida acuta and Sida rhombifolia are ethnomedicinal plants of Malvaceae, commonly used in Indian traditional system of medicines. Traditionally these plants were used in the form of extracts/powder/paste by tribal populations of India for treating common ailments like cough and cold, fever, stomach, kidney and liver disorders, pains, inflammations, wounds, etc. The present review is an overview of phytochemistry and ethnopharmacological studies that support many of the traditional ethnomedicinal uses of these plants. Many phytoconstituents have been isolated from the four ethnomedicinal plants and some of them have shown pharmacological activities that have been demonstrated by in vivo and/or in vitro experiments. Ethnomedicinal uses, supported by scientific evidences is essential for ensuring safe and effective utilization of herbal medicines.
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Affiliation(s)
- Jasmeet Kaur Abat
- Department of Botany, Gargi College, Sirifort Road, New Delhi110049, India.
| | - Sanjay Kumar
- Department of Microbiology, Maharshi Dayanand University, Rohtak, Haryana124001, India.
| | - Aparajita Mohanty
- Department of Botany, Gargi College, Sirifort Road, New Delhi110049, India.
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Foyet SH, Balmus IM, Hervé Hervé NA, Emmanuel AA, Guenne S, Kiendrebéogo M, Ciobica A. Ethnopharmacological approaches in mood and anxiety disorders. The relevance of the oxidative stress status. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2017; 14:/j/jcim.ahead-of-print/jcim-2016-0059/jcim-2016-0059.xml. [PMID: 28284035 DOI: 10.1515/jcim-2016-0059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Accepted: 01/24/2017] [Indexed: 01/27/2023]
Abstract
Neurodegenerative diseases and psychiatric disorders are one of the most important pathologies that lead to increased morbidity in populations. Both mood and anxiety disorders include mental disorders not caused by detectable organic abnormalities of the brain. At the molecular level, affective spectrum symptomatology is due to neurotransmitter dysregulation including receptor or transporter impairments and also due to faulty intracellular signaling that generally leads to impaired neurotransmission. Also, recent studies have shown the relationship between oxidative stress and the development of affective disorders. Since classical medication can cause major side effects and alternative approaches tend to be more and more trusted, it seems that plant extracts-based complementary therapies may offer superior yielding and safety compared to traditional medication.
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Ben Saad A, Rjeibi I, Brahmi D, Smida A, Ncib S, Zouari N, Zourgui L. Malva sylvestris extract protects upon lithium carbonate-induced kidney damages in male rat. Biomed Pharmacother 2016; 84:1099-1107. [DOI: 10.1016/j.biopha.2016.10.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 10/01/2016] [Accepted: 10/09/2016] [Indexed: 02/08/2023] Open
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Propensity of Hyoscyamus niger seeds methanolic extract to allay stereotaxically rotenone-induced Parkinson’s disease symptoms in rats. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/s13596-015-0202-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Permeability Study of Polyphenols Derived from a Phenolic-Enriched Hibiscus sabdariffa Extract by UHPLC-ESI-UHR-Qq-TOF-MS. Int J Mol Sci 2015; 16:18396-411. [PMID: 26262611 PMCID: PMC4581252 DOI: 10.3390/ijms160818396] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 07/30/2015] [Accepted: 07/30/2015] [Indexed: 02/05/2023] Open
Abstract
Previous findings on the capacity of Hibiscus sabdariffa (HS) polyphenols to ameliorate metabolic disturbances justify the necessity of studies oriented to find the potential metabolites responsible for such an effect. The present study examined the intestinal epithelial membrane permeability of polyphenols present in a phenolic-enriched Hibiscus sabdariffa extract (PEHS), free and encapsulated, using the Caco-2 cell line. Additionally, selected polyphenols (quercetin, quercetin-3-glucoside, quercetin-3-glucuronide, and N-feruloyltyramine) were also studied in the same absorption model. The powerful analytical platform used ultra-high-performance liquid chromatography coupled with ultra-high-resolution quadrupole time-of-flight mass spectrometry (UHPLC-ESI-UHR-Qq-TOF-MS), and enabled the characterization of seven new compounds in PEHS. In the permeation study, only a few compounds were able to cross the cell monolayer and the permeability was lower when the extract was in an encapsulated form. Pure compounds showed a moderate absorption in all cases. Nevertheless, these preliminary results may need further research to understand the complete absorption mechanism of Hibiscus polyphenols.
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HPLC-DAD Phenolic Characterization and Antioxidant Activities of Ripe and Unripe Sweet Orange Peels. Antioxidants (Basel) 2015; 4:498-512. [PMID: 26783839 PMCID: PMC4665423 DOI: 10.3390/antiox4030498] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2015] [Revised: 06/19/2015] [Accepted: 06/19/2015] [Indexed: 01/31/2023] Open
Abstract
Phenolic compounds of unripe and ripe sweet orange peels were determined using a high-performance liquid chromatography separation method with diode array detector (HPLC-DAD). The in vitro antioxidant properties and the EC50 (concentration required to obtain a 50% antioxidant effect) values were also determined. The predominant phenolic compounds were quercitrin, rutin, and quercetin with values of 18.77 ± 0.01 mg/mL, 18.65 ± 0.03 mg/mL, and 10.39 ± 0.01 mg/mL respectively in unripe orange peel and 22.61 ± 0.01 mg/mL, 17.93 ± 0.03 mg/mL, and 14.03 ± 0.02 mg/mL respectively in ripe orange peel. The antioxidant properties revealed 2,2'-azino-bis(3-ethyl benzothiazoline-6-sulfonic acid) diammonium salt (ABTS) scavenging ability of both unripe and ripe orange peels respectively as 14.68 ± 0.01 and 16.89 ± 0.02 mmol TEAC/g, the Ferric Reducing Antioxidant Properties (FRAP) as 70.69 ± 0.01 and 91.38 ± 0.01 mg gallic acid equivalents/100g, total phenol content as 5.27 ± 0.03 and 9.40 ± 0.01 mg gallic acid equivalents/g and total flavonoid content as 3.30 ± 0.30 and 4.20 ± 0.02 mg quercetin equivalent/g. The antioxidant assays showed enhanced potency of extract from ripe orange peel with EC50 values of 2.71 ± 0.03 mg/mL for 2,2-diphenyl-1-picrylhydrazyl (DPPH), 0.67 ± 0.03 mg/mL for hydroxyl radicals (OH*), 0.57 ± 0.02 mg/mL for Fe(2+) chelation, and 0.63 ± 0.06 mg/mL for malondialdehyde (MDA), and was more potent than unripe orange peel.
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Shodehinde SA, Oboh G. Antioxidant properties of aqueous extracts of unripe Musa paradisiaca on sodium nitroprusside induced lipid peroxidation in rat pancreas in vitro. Asian Pac J Trop Biomed 2015; 3:449-57. [PMID: 23730557 DOI: 10.1016/s2221-1691(13)60095-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Accepted: 05/10/2013] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVE To evaluate and compare antioxidant activities of the aqueous extracts of unripe plantain (Musa paradisiaca), assess their inhibitory action on sodium nitroprusside induced lipid peroxidation in rat pancreas in vitro and to characterize the main phenolic constituents of the plantain products using gas chromatography analysis. METHODS Aqueous extracts of plantain products (raw, elastic pastry, roasted and boiled) flour of 0.1 g/mL (each) were used to determine their total phenol, total flavonoid, 1,1 diphenyl-2 picrylhydrazyl (DPPH) and hydroxyl (OH) radical scavenging ability. The inhibitory effect of the extracts on sodium nitroprusside induced lipid peroxidation was also determined. RESULTS The results revealed that all the aqueous extracts showed antioxidant activity. The boiled flour had highest DPPH and OH radical scavenging ability while raw flour had the highest Fe(2+) chelating ability, sodium nitroprusside inhibitory effect and vitamin C content. The antioxidant results showed that elastic pastry had the highest total phenol and total flavonoid content. Characterization of the unripe plantain products for polyphenol contents using gas chromatography showed varied quantity of apigenin, myricetin, luteolin, capsaicin, isorhaemnetin, caffeic acid, kampferol, quercetin, p-hydroxybenzoic acid, shogaol, glycitein and gingerol per product on the spectra. CONCLUSIONS Considering the antioxidant activities and ability to inhibit lipid peroxidation of unripe plantain, this could justify their traditional use in the management/prevention of diseases related to stress.
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Oboh G, Bello FO, Ademosun AO, Akinyemi AJ, Adewuni TM. Antioxidant, hypolipidemic, and anti-angiotensin-1-converting enzyme properties of lemon (Citrus limon) and lime (Citrus aurantifolia) juices. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/s00580-015-2088-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sindi HA, Marshall LJ, Morgan MR. Comparative chemical and biochemical analysis of extracts of Hibiscus sabdariffa. Food Chem 2014; 164:23-9. [DOI: 10.1016/j.foodchem.2014.04.097] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 04/25/2014] [Accepted: 04/27/2014] [Indexed: 02/05/2023]
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In Vitro Studies on the Antioxidant Property and Inhibition of α-Amylase, α-Glucosidase, and Angiotensin I-Converting Enzyme by Polyphenol-Rich Extracts from Cocoa (Theobroma cacao) Bean. PATHOLOGY RESEARCH INTERNATIONAL 2014; 2014:549287. [PMID: 25295218 PMCID: PMC4175390 DOI: 10.1155/2014/549287] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Revised: 07/09/2014] [Accepted: 09/02/2014] [Indexed: 11/25/2022]
Abstract
Background. This study sought to investigate the antidiabetic and antihypertensive mechanisms of cocoa (Theobroma cacao) bean through inhibition of α-amylase, α-glucosidase, angiotensin-1 converting enzyme, and oxidative stress. Methodology. The total phenol and flavonoid contents of the water extractable phytochemicals from the powdered cocoa bean were determined and the effects of the extract on α-amylase, α-glucosidase, and angiotensin-1 converting enzyme activities were investigated in vitro. Furthermore, the radicals [1,1-diphenyl-2 picrylhydrazyl (DPPH), 2,2..-azino-bis(3-ethylbenzthiazoline-6-sulphonic acid) (ABTS), hydroxyl (OH), and nitric oxide (NO)] scavenging ability and ferric reducing antioxidant property of the extract were assessed. Results. The results revealed that the extract inhibited α-amylase (1.81 ± 0.22 mg/mL), α-glucosidase (1.84 ± 0.17 mg/mL), and angiotensin-1 converting enzyme (0.674 ± 0.06 mg/mL [lungs], 1.006 ± 0.08 mg/mL [heart]) activities in a dose-dependent manner and also showed dose-dependent radicals [DPPH (16.94 ± 1.34 mg/mL), NO (6.98 ± 0.886 mg/mL), OH (3.72 ± 0.26 mg/mL), and ABTS (15.7 ± 1.06 mmol/TEAC·g] scavenging ability. Conclusion. The inhibition of α-amylase, α-glucosidase, and angiotensin-1 converting enzyme activities by the cocoa bean extract could be part of the possible mechanism by which the extract could manage and/or prevent type-2 diabetes and hypertension.
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Oboh G, Nwokocha KE, Akinyemi AJ, Ademiluyi AO. Inhibitory effect of polyphenolic-rich extract from Cola nitida (Kolanut) seed on key enzyme linked to type 2 diabetes and Fe(2+) induced lipid peroxidation in rat pancreas in vitro. Asian Pac J Trop Biomed 2014; 4:S405-12. [PMID: 25183118 DOI: 10.12980/apjtb.4.2014c75] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 03/18/2014] [Indexed: 02/04/2023] Open
Abstract
OBJECTIVE To investigate the inhibitory effect of phenolic-rich extracts from Cola nitida (C. nitida) seeds on key enzymes linked with type-2 diabetes and Fe(2+) induced oxidative stress in rat pancreas. METHODS The phenolic extract was prepared with 80% acetone (v/v). Subsequently, the antioxidant properties and inhibitory effect of the extract on α - amylase and α - glucosidase as well as on Fe(2+) induced lipid peroxidation in rat pancreas were determined in vitro. RESULTS The result revealed that C. nitida extract inhibited α-amylase (EC50=0.34 mg/mL) and α-glucosidase (EC50=0.32 mg/mL) activities as well as Fe(2+) induced lipid peroxidation in rat pancreas in a dose dependent manner. In addition, the extract had high DPPH radical scavenging ability (EC50=2.2 mg/mL) and reducing power (8.2 mg AAE/g). Characterization of the main phenolic compounds of the extract using gas chromatography analysis revealed catechin (6.6 mg/100 g), epicatechin (3.6 mg/100 g), apigenin (5.1 mg/100 g) and naringenin (3.6 mg/100 g) were the main compounds in the extract. CONCLUSIONS This antioxidant and enzyme inhibition could be some of the possible mechanism by which C. nitida is use in folklore for the management/treatment of type-2 diabetes. However, the enzyme inhibitory properties of the extract could be attributed to the presence of catechin, epicatechin, apigenin and naringenin.
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Affiliation(s)
- Ganiyu Oboh
- Department of Biochemistry, Federal University of Technology, P.M.B., 704, Akure 340001, Nigeria
| | - Kate E Nwokocha
- Department of Biochemistry, University of Ibadan, Ibadan, Nigeria
| | - Ayodele J Akinyemi
- Department of Biochemistry, Federal University of Technology, P.M.B., 704, Akure 340001, Nigeria ; Department of Biochemistry, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Adedayo O Ademiluyi
- Department of Biochemistry, Federal University of Technology, P.M.B., 704, Akure 340001, Nigeria
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Oboh G, Isaac AT, Akinyemi AJ, Ajani RA. Inhibition of key enzymes linked to type 2 diabetes and sodium nitroprusside induced lipid peroxidation in rats' pancreas by phenolic extracts of avocado pear leaves and fruit. INTERNATIONAL JOURNAL OF BIOMEDICAL SCIENCE : IJBS 2014; 10:208-216. [PMID: 25324703 PMCID: PMC4199475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Accepted: 11/18/2013] [Indexed: 06/04/2023]
Abstract
Persea americana fruit and leaves had been known in folk medicine for their anti-diabetic prowess. Therefore, this study sought to investigate the inhibitory effect of phenolic extract from avocado pear (Persea americana) leaves and fruits on some key enzymes linked to type 2 diabetes (α-amylase and α-glucosidase); and sodium nitroprusside (SNP) induced lipid peroxidation in rats' pancreas in vitro. The phenolic extracts of Persea americana fruit and leaves were extracted using methanol and 1M HCl (1:1 v/v). Thereafter, their inhibitory effects on sodium nitroprusside induced lipid peroxidation and key enzymes linked to type 2 diabetes (α-amylase and α-glucosidase) were determined in vitro. The result revealed that the leaves had fruit of avocado pear inhibit both α-amylase and α-glucosidase activities in a dose dependent manner. However, the Peel had the highest α-amylase inhibitory activity while the leaf had the highest α-glucosidase inhibitory activity as revealed by their IC50 value. Furthermore, incubation of the rat pancreas in the presence of 5 mM SNP caused an increase in the malondialdehyde (MDA) content in the tissue, however, introduction of the phenolic extracts inhibited MDA produced in a dose dependent manner. The additive and/or synergistic action of major phenolic compounds such as syringic acid, eugenol, vnillic acid, isoeugenol, guaiacol, kaemferol, catechin, ρ-hydroxybenzoic acid, ferulic acid, apigenin, naringenin, epigallocatechin, epicatechin, lupeol and epigallocatechin-3-O-gallate in avocado pear using gas chromatography (GC) could have contributed to the observed medicinal properties of the plant. Therefore, inhibition of some key enzymes linked to type 2 diabetes and prevention of oxidative stress in the pancreas could be some of the possible mechanism by which they exert their anti-diabetic properties.
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Affiliation(s)
- Ganiyu Oboh
- Functional Foods and Nutraceuticals Unit, Department of Biochemistry, Federal University of Technology, Akure, Nigeria, P.M.B. 704, Akure, 340001, Nigeria
| | - Adelusi Temitope Isaac
- Department of Biochemistry, Ladoke Akintola University of Technology, Oyo State, Nigeria, P.M.B 4000, Nigeria
| | - Ayodele Jacobson Akinyemi
- Functional Foods and Nutraceuticals Unit, Department of Biochemistry, Federal University of Technology, Akure, Nigeria, P.M.B. 704, Akure, 340001, Nigeria
- Department of Biochemistry, Afe Babalola University, Ado-Ekiti, Nigeria, P.M.B. 5454, Nigeria
| | - Richard Akinlolu Ajani
- Department of Biochemistry, Ladoke Akintola University of Technology, Oyo State, Nigeria, P.M.B 4000, Nigeria
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Tomankova K, Kolarova H, Pizova K, Binder S, Konecny P, Kriegova E, Malina L, Horakova J, Malohlava J, Kejlova K, Jirova D. Cytotoxicity and Antioxidative Effects of Herbal and Fruit Extracts In Vitro. FOOD BIOPHYS 2014. [DOI: 10.1007/s11483-014-9349-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Interaction of some commercial teas with some carbohydrate metabolizing enzymes linked with type-2 diabetes: a dietary intervention in the prevention of type-2 diabetes. Adv Prev Med 2014; 2014:534082. [PMID: 24527218 PMCID: PMC3914286 DOI: 10.1155/2014/534082] [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: 11/25/2013] [Accepted: 12/13/2013] [Indexed: 02/04/2023] Open
Abstract
This study is aimed at assessing the inhibitory effect of teas on key enzymes (α-amylase and α-glucosidase) linked with type-2 diabetes and their antioxidant properties. Four samples of three brands were used; infusions of green tea (GT), 2 brands of black tea (BT), and a formulated herbal preparation for diabetes (ADT) (white tea, Radix Puerariae, Radix ophiopogonis, hawthorn berry, Chinese yam, and fragrant Solomon seal rhizome) were prepared and subsequently analyzed for their total phenol, ascorbic acid contents, antioxidant properties (2,2-Azizobis
(3-Ethylbenzo-Thiazoline~6-sulfonate) “ABTS” scavenging ability and ferric reducing antioxidant property), and inhibition of pancreatic-α-amylase and intestinal-α-glucosidase in vitro. The study revealed that GT had the highest total phenol content, ascorbic acid content, ABTS∗ scavenging ability, and ferric reducing ability. Furthermore, all the teas inhibited Fe2+ and sodium nitroprusside induced lipid peroxidation in pancreas, with GT having the highest inhibitory effect. Conversely, there was no significant difference (P > 0.05) in the inhibitory effects of the teas on α-amylase and α-glucosidase. The antidiabetic property of the teas could be attributed to their inhibitory effect on carbohydrate hydrolyzing enzymes implicated in diabetes and their antioxidant activities.
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Higginbotham KL, Burris KP, Zivanovic S, Davidson PM, Stewart CN. Antimicrobial activity of Hibiscus sabdariffa aqueous extracts against Escherichia coli O157:H7 and Staphylococcus aureus in a microbiological medium and milk of various fat concentrations. J Food Prot 2014; 77:262-8. [PMID: 24490920 DOI: 10.4315/0362-028x.jfp-13-313] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Hibiscus sabdariffa L. calyces are widely used in the preparation of beverages. The calyces contain compounds that exhibit antimicrobial activity, yet little research has been conducted on their possible use in food systems as antimicrobials. Aqueous extracts prepared from the brand "Mi Costenita" were sterilized by membrane filtration (0.22-μm pore size) or autoclaving (121 °C, 30 min) and tested for antimicrobial activity against the foodborne pathogens Escherichia coli O157:H7 strains ATCC 43894 and Cider and Staphylococcus aureus strains SA113 and ATCC 27708 in a microbiological medium and ultrahigh-temperature-processed milk with various fat percentages. Extracts heated by autoclaving exhibited greater activity than did filtered extracts in a microbiological medium. Against E. coli, results of 20 mg/ml filtered extract were not different from those of the control, whereas autoclaved extracts reduced viable cells ca. 3 to 4 log CFU/ml. At 60 mg/ml, both extracts inactivated cells after 24 h. There were reduced populations of both strains of S. aureus (ca. 2.7 and 3 log CFU/ml, respectively) after 24 h of incubation in 40 mg/ml filtered extracts. When grown in autoclaved extracts at 40 mg/ml, both strains of S. aureus were inactivated after 9 h. Autoclaved extracts had decreased anthocyanin content (2.63 mg/liter) compared with filtered extracts (14.27 mg/liter), whereas the phenolic content (48.7 and 53.8 mg/g) remained similar for both treatments. Autoclaved extracts were then tested for activity in milk at various fat concentrations (skim [<0.5%], 1%, 2%, and whole [>3.25%]) against a 1:1 mixture of the two strains of E. coli O157:H7 and a 1:1 mixture of the two strains of S. aureus. Extracts at 40 mg/ml inactivated S. aureus after 168 h in skim and whole milk, and E. coli was inactivated after 96 h in 60 mg/ml extract in all fat levels. These findings show the potential use of Hibiscus extracts to prevent the growth of pathogens in foods and beverages.
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Affiliation(s)
- Kristen L Higginbotham
- Department of Food Science and Technology, University of Tennessee, Knoxville, 2605 River Drive, Knoxville, Tennessee 37996-4591, USA
| | - Kellie P Burris
- Department of Plant Sciences, University of Tennessee, Knoxville, 252 Ellington Plant Sciences, 2431 Joe Johnson Drive, Knoxville, Tennessee 37996-4561, USA
| | - Svetlana Zivanovic
- Department of Food Science and Technology, University of Tennessee, Knoxville, 2605 River Drive, Knoxville, Tennessee 37996-4591, USA
| | - P Michael Davidson
- Department of Food Science and Technology, University of Tennessee, Knoxville, 2605 River Drive, Knoxville, Tennessee 37996-4591, USA
| | - C Neal Stewart
- Department of Food Science and Technology, University of Tennessee, Knoxville, 2605 River Drive, Knoxville, Tennessee 37996-4591, USA; Department of Plant Sciences, University of Tennessee, Knoxville, 252 Ellington Plant Sciences, 2431 Joe Johnson Drive, Knoxville, Tennessee 37996-4561, USA.
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22
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Shodehinde S, Oboh G. Distribution and Antioxidant Activity of Polyphenols in Boiled Unripe Plantain (Musa Paradisiaca
) Pulps. J Food Biochem 2013. [DOI: 10.1111/jfbc.12047] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- S.A. Shodehinde
- Department of Biochemistry; Adekunle Ajasin University; Akungba Akoko Ondo State Nigeria
| | - G. Oboh
- Functional Foods and Nutraceuticals Unit; Department of Biochemistry; Federal University of Technology; Akure Nigeria
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Oboh G, Olabiyi AA, Akinyemi AJ. Inhibitory effect of aqueous extract of different parts of unripe pawpaw (Carica papaya) fruit on Fe²⁺-induced oxidative stress in rat pancreas in vitro. PHARMACEUTICAL BIOLOGY 2013; 51:1165-1174. [PMID: 23758107 DOI: 10.3109/13880209.2013.782321] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
CONTEXT Carica papaya L. (Caricaceae) is widespread throughout tropical Africa; it is cultivated for its fruits and it is eaten in various ways. OBJECTIVE This study sought to investigate the inhibitory effect of the aqueous extract of different parts of unripe pawpaw fruit on Fe²⁺-induced lipid peroxidation in rat's pancreas in vitro. MATERIALS AND METHODS The aqueous extract of the unripe pawpaw fruit parts; peel (PG), seed (SG), flesh (FG), flesh with peel (FPG) and a combination of equal amount of all parts (CG) were prepared, the total phenolic content and the antioxidant activities of the extracts were then evaluated using various spectrophotometric methods. RESULT PG had the highest total phenol content (1.24 mg GAE/g), flavonoid content (0.63 mg QUE/g), reducing power (7.07 mg AAE/g) and Fe²⁺ chelating ability while the SG had the highest 1,1-diphenyl-2-picrylhydrazyl radical scavenging ability. Furthermore, all the extracts caused a significant decrease (p < 0.05) in the malondialdehyde contents in the pancreas with SG (IC₅₀ = 4.25 mg/mL) having the highest inhibitory effect on Fe²⁺-induced lipid peroxidation. DISCUSSION AND CONCLUSION This protective effect of the extracts on Fe²⁺-induced lipid peroxidation in rat pancreas could be attributed to their phenolic compounds and, the possible mechanism may be through their antioxidant activities. However, the effect of combination of different parts of unripe pawpaw fruit in equal amount (w/w) on the inhibition of Fe²⁺-induced lipid peroxidation in rat pancreas exhibited additive properties.
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Affiliation(s)
- Ganiyu Oboh
- Functional Foods and Nutraceuticals Unit, Department of Biochemistry, Federal University of Technology, Akure, Nigeria.
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Akinyemi AJ, Ademiluyi AO, Oboh G. Aqueous extracts of two varieties of ginger (Zingiber officinale) inhibit angiotensin I-converting enzyme, iron(II), and sodium nitroprusside-induced lipid peroxidation in the rat heart in vitro. J Med Food 2013; 16:641-6. [PMID: 23875904 DOI: 10.1089/jmf.2012.0022] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Ginger has reportedly been used in folk medicine for the management and prevention of hypertension and other cardiovascular diseases. Therefore, this study sought to investigate the inhibitory effect of aqueous extracts of two varieties of ginger on a key enzyme linked to hypertension (angiotensin I-converting enzyme [ACE]), and on pro-oxidants [Fe(2+) and sodium nitroprusside (SNP)] which have been shown to induce lipid peroxidation in the rat's isolated heart in vitro. Aqueous extracts (0.05 mg/mL) of red ginger (Zingiber officinale var. Rubra) and white ginger (Zingiber officinale Roscoe) were prepared and the ability of the extracts to inhibit ACE along with Fe(2+)- and SNP-induced lipid peroxidation was determined in rat's heart in vitro. Results revealed that both extracts inhibited ACE in a dose-dependent manner (25-125 μg/mL). However, red ginger extract (EC50=27.5 μg/mL) had a significantly (P<.05) higher inhibitory effect on ACE than white ginger extract (EC50=87.0 μg/mL). Furthermore, incubation of the rat's heart in the presence of Fe(2+) and SNP caused a significant increase (P<.05) in the malondialdehyde (MDA) content of the heart homogenates, while the introduction of the ginger extracts (78-313 μg/mL) caused a dose-dependent decrease in the MDA content of the stressed heart homogenates. This suggests that the possible mechanism through which ginger exerts its antihypertensive properties may be through inhibition of ACE activity and prevention of lipid peroxidation in the heart. Furthermore, red ginger showed stronger inhibition of ACE than white ginger. Additionally, it should be noted that these protective properties of the ginger varieties could be attributed to their polyphenol contents.
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Affiliation(s)
- Ayodele J Akinyemi
- Functional Foods and Nutraceuticals Unit, Department of Biochemistry, Federal University of Technology, Akure, Nigeria
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Villani T, Juliani HR, Simon JE, Wu QL. Hibiscus sabdariffa: Phytochemistry, Quality Control, and Health Properties. ACS SYMPOSIUM SERIES 2013. [DOI: 10.1021/bk-2013-1127.ch014] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Tom Villani
- New Use Agriculture and Natural Plant Products Program, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, 59 Dudley Road, New Brunswick, New Jersey 08901
- Department of Medicinal Chemistry, Ernest Mario School of Pharmacy, 160 Frelinghuysen Road, Piscataway, New Jersey 08854
| | - H. Rodolfo Juliani
- New Use Agriculture and Natural Plant Products Program, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, 59 Dudley Road, New Brunswick, New Jersey 08901
- Department of Medicinal Chemistry, Ernest Mario School of Pharmacy, 160 Frelinghuysen Road, Piscataway, New Jersey 08854
| | - James E. Simon
- New Use Agriculture and Natural Plant Products Program, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, 59 Dudley Road, New Brunswick, New Jersey 08901
- Department of Medicinal Chemistry, Ernest Mario School of Pharmacy, 160 Frelinghuysen Road, Piscataway, New Jersey 08854
| | - Qing-Li Wu
- New Use Agriculture and Natural Plant Products Program, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, 59 Dudley Road, New Brunswick, New Jersey 08901
- Department of Medicinal Chemistry, Ernest Mario School of Pharmacy, 160 Frelinghuysen Road, Piscataway, New Jersey 08854
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Oboh G, Ademosun AO. Characterization of the antioxidant properties of phenolic extracts from some citrus peels. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2012; 49:729-36. [PMID: 24293692 PMCID: PMC3550823 DOI: 10.1007/s13197-010-0222-y] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 11/08/2010] [Accepted: 12/29/2010] [Indexed: 10/18/2022]
Abstract
This study sought to determine the distribution of free and bound phenolics in some Nigerian citrus peels [orange (Citrus sinensis), grapefruit (Citrus paradisii) and shaddock (Citrus maxima)] and characterize the antioxidant properties. The free phenolics were extracted with 80% acetone, while the bound phenolics were extracted from the alkaline and acid hydrolyzed residue with ethyl acetate. Free phenolic extracts had significantly higher (P < 0.05) DPPH* scavenging ability than the bound phenolic extracts, except in orange peels where the bound phenolic extracts had significantly higher (P < 0.05) DPPH* scavenging ability. Bound phenolics from orange peels had the highest ABTS* scavenging ability (6.09 mmol./TEAC g) and ferric reducing antioxidant properties (FRAP) (71.99 mg/GAE 100 g), while bound phenolics from shaddock peels had the least ABTS* scavenging ability (1.35 mmol./TEAC g) and FRAP (2.58 mg/GAE 100 g) . Bound phenolics from grapefruit peels had the highest OH* scavenging ability (EC50 = 3.8 mg/ml), while bound phenolics from shaddock peels had the least (EC50 = 16.1 mg/ml). The phenolics chelated Fe(2+) and inhibited malondialdehyde production in rat's pancreas in a dose-dependent manner. The additive and/or synergistic action of the free and bound phenolics could have contributed to the observed medicinal properties of the peels; therefore, the high antioxidant properties of the free and bound phenolic extracts from orange peels could be harness in the formulation of nutraceuticals and food preservatives.
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Affiliation(s)
- G. Oboh
- Biochemistry Department, Federal University of Technology, P.M.B. 704 Akure, Nigeria
| | - A. O. Ademosun
- Biochemistry Department, Federal University of Technology, P.M.B. 704 Akure, Nigeria
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Attenuation of cyclophosphamide-induced neurotoxicity in rat by yellow dye extract from root of Brimstone tree (Morinda lucida). ACTA ACUST UNITED AC 2012; 64:591-6. [DOI: 10.1016/j.etp.2010.11.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2010] [Revised: 09/25/2010] [Accepted: 11/22/2010] [Indexed: 11/18/2022]
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Ademosun AO, Oboh G. Inhibition of Acetylcholinesterase Activity and Fe2+-Induced Lipid Peroxidation in Rat Brain In Vitro by Some Citrus Fruit Juices. J Med Food 2012; 15:428-34. [DOI: 10.1089/jmf.2011.0226] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Ayokunle O. Ademosun
- Department of Biochemistry, Federal University of Technology, Akure, Ondo-State, Nigeria
| | - Ganiyu Oboh
- Department of Biochemistry, Federal University of Technology, Akure, Ondo-State, Nigeria
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OBOH G, ADEMOSUN A. PHENOLIC EXTRACTS FROM GRAPEFRUIT PEELS (CITRUS PARADISI) INHIBIT KEY ENZYMES LINKED WITH TYPE 2 DIABETES AND HYPERTENSION. J Food Biochem 2011. [DOI: 10.1111/j.1745-4514.2010.00495.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Hritcu L, Foyet HS, Stefan M, Mihasan M, Asongalem AE, Kamtchouing P. Neuroprotective effect of the methanolic extract of Hibiscus asper leaves in 6-hydroxydopamine-lesioned rat model of Parkinson's disease. JOURNAL OF ETHNOPHARMACOLOGY 2011; 137:585-591. [PMID: 21704692 DOI: 10.1016/j.jep.2011.06.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2011] [Revised: 05/19/2011] [Accepted: 06/08/2011] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE While the Hibiscus asper Hook.f. (Malvaceae) is a traditional herb largely used in tropical region of the Africa as vegetable, potent sedative, tonic and restorative, anti-inflammatory and antidepressive drug, there is very little scientific data concerning the efficacy of this. MATERIALS AND METHODS The antioxidant and antiapoptotic activities of the methanolic extract of Hibiscus asper leaves (50 and 100 mg/kg) were assessed using superoxide dismutase (SOD), glutathione peroxidase (GPX) and catalase (CAT) specific activities, total glutathione (GSH) content, malondialdehyde (MDA) level (lipid peroxidation) and DNA fragmentation assays in male Wistar rats subjected to unilateral 6-hydroxydopamine (6-OHDA)-lesion. RESULTS In 6-OHDA-lesioned rats, methanolic extract of Hibiscus asper leaves showed potent antioxidant and antiapoptotic activities. Chronic administration of the methanolic extract (50 and 100 mg/kg, i.p., daily, for 7 days) significantly increased antioxidant enzyme activities (SOD, GPX and CAT), total GSH content and reduced lipid peroxidation (MDA level) in rat temporal lobe homogenates, suggesting antioxidant activity. Also, DNA cleavage patterns were absent in the 6-OHDA-lesioned rats treated with methanolic extract of Hibiscus asper leaves, suggesting antiapoptotic activity. CONCLUSIONS Taken together, our results suggest that the methanolic extract of Hibiscus asper leaves possesses neuroprotective activity against 6-OHDA-induced toxicity through antioxidant and antiapoptotic activities in Parkinson's disease model.
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Affiliation(s)
- Lucian Hritcu
- Department of Biology, Alexandru Ioan Cuza University, Bd. Carol I, No.11 20A, Iasi 700506, Romania.
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Oboh G, Ademosun AO. Shaddock peels (Citrus maxima) phenolic extracts inhibit α-amylase, α-glucosidase and angiotensin I-converting enzyme activities: a nutraceutical approach to diabetes management. Diabetes Metab Syndr 2011; 5:148-152. [PMID: 22813568 DOI: 10.1016/j.dsx.2012.02.008] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this study, the interactions of free and bound phenolic-rich extracts from shaddock peels (popular in folklore for the management of diabetes and hypertension) with α-amylase and α-glucosidase (key enzymes linked to type-2 diabetes) and angiotensin I-converting enzyme (ACE) (key enzyme linked to hypertension) were assessed. The free phenolics of shaddock (Citrus maxima) peels were extracted with 80% acetone, while the bound phenolics were extracted from the alkaline and acid hydrolyzed residue with ethyl acetate; and their interaction with the enzymes were assessed. The phenolic extracts inhibited α-amylase, α-glucosidase and ACE enzyme activities in a dose-dependent manner; however, bound phenolics had significantly higher (P<0.05) α-amylase inhibitory activities, than free phenolics, which had significantly higher (P<0.05) ACE inhibitory activities. There was no significant difference (P>0.05) in their α-glucosidase inhibitory activities. The stronger inhibition of α-glucosidase when compared to α-amylase is of great pharmaceutical importance. The phenolic inhibited sodium nitroprusside induced lipid peroxidation in pancreas in a dose dependent manner. Therefore, free and bound phenolic extracts from shaddock peels could be used as nutraceutical for the management of hypertension and type-2 diabetes.
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Affiliation(s)
- Ganiyu Oboh
- Department of Biochemistry, Federal University of Technology, Akure, Ondo-State, Nigeria.
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Fernández-Arroyo S, Rodríguez-Medina IC, Beltrán-Debón R, Pasini F, Joven J, Micol V, Segura-Carretero A, Fernández-Gutiérrez A. Quantification of the polyphenolic fraction and in vitro antioxidant and in vivo anti-hyperlipemic activities of Hibiscus sabdariffa aqueous extract. Food Res Int 2011. [DOI: 10.1016/j.foodres.2011.03.040] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Marouane W, Soussi A, Murat JC, Bezzine S, El Feki A. The protective effect of Malva sylvestris on rat kidney damaged by vanadium. Lipids Health Dis 2011; 10:65. [PMID: 21513564 PMCID: PMC3104358 DOI: 10.1186/1476-511x-10-65] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2011] [Accepted: 04/23/2011] [Indexed: 12/15/2022] Open
Abstract
Background The protective effect of the common mallow (Malva sylvestris) decoction on renal damages in rats induced by ammonium metavanadate poisoning was evaluated. On the one hand, vanadium toxicity is associated to the production of reactive oxygen species, causing a lipid peroxidation and an alteration in the enzymatic antioxidant defence. On the other hand, many medicinal plants are known to possess antioxidant and radical scavenging properties, thanks to the presence of flavonoids. These properties were confirmed in Malva sylvestris by two separate methods; namely, the Diphenyl-2-picrylhydrazyl assay and the Nitroblue Tetrazolium reduction assay. Results In 80 rats exposed to ammonium metavanadate (0.24 mmol/kg body weight in drinking water) for 90 days, lipid peroxidation levels and superoxide dismutase, catalase and glutathione peroxidase activities were measured in kidney. A significant increase in the formation of free radicals and antioxidant enzyme activities was noticed. In addition, a histological examination of kidney revealed a structural deterioration of the renal cortical capsules and a shrinking of the Bowman space. In animals intoxicated by metavanadate but also given a Malva sylvestris decoction (0.2 g dry mallow/kg body weight), no such pathologic features were observed: lipid peroxidation levels, antioxidant enzyme activities and histological features appeared normal as compared to control rats. Conclusion Malva sylvestris is proved to have a high antioxidative potential thanks to its richness in phenolic compounds.
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Affiliation(s)
- Wafa Marouane
- Laboratoire d’Ecophysiologie Animale, Faculté des Sciences, Route de Soukra 3038 Sfax-University of Sfax-Tunisia
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Foyet HS, Hritcu L, Ciobica A, Stefan M, Kamtchouing P, Cojocaru D. Methanolic extract of Hibiscus asper leaves improves spatial memory deficits in the 6-hydroxydopamine-lesion rodent model of Parkinson's disease. JOURNAL OF ETHNOPHARMACOLOGY 2011; 133:773-779. [PMID: 21070845 DOI: 10.1016/j.jep.2010.11.011] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2010] [Revised: 10/27/2010] [Accepted: 11/02/2010] [Indexed: 05/30/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE While the Hibiscus asper Hook.f. (Malvaceae) is a traditional herb largely used in tropical region of the Africa as vegetable, potent sedative, tonic and restorative, anti-inflammatory and antidepressive drug, there is very little scientific data concerning the efficacy of this. AIM OF THE STUDY We investigated antioxidant activity and the effects of methanolic extract of Hibiscus asper leaves on neurological capacity of male Wistar rats subjected to unilateral 6-hydroxydopamine (6-OHDA)-lesion. MATERIALS AND METHODS Two model systems: 2,4-dinitrophenyl-1-picryl hydrazyl (DPPH) radical scavenging activity and β-carotene bleaching inhibition assay were used to measure the antioxidant activities of the plan extract. We also investigated the neuroprotective effect of methanolic extract of Hibiscus asper leaves (50 and 100 mg/kg) in male Wistar rats subjected to unilateral 6-hydroxydopamine (6-OHDA)-lesion rat model. RESULTS Methanolic extract of Hibiscus asper leaves showed potent antioxidant and free radical scavenging activity. Chronic administration of methanolic extract (50 and 100 mg/kg, i.p., daily, for 7 days) significantly reduce anxiety-like behavior and inhibit depression in elevated plus-maze and forced swimming tests, suggesting anxiolytic and antidepressant activity. Also, spatial memory performance in Y-maze and radial arm-maze tasks was improved, suggesting positive effects on memory formation. CONCLUSIONS Taken together, our results suggest that the methanolic extract of Hibiscus asper leaves have antioxidant effects and might provide an opportunity to management neurological abnormalities in Parkinson's disease conditions.
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Affiliation(s)
- Harquin Simplice Foyet
- Department of Agriculture, Cattle farming and Derived products, High Institute of the Sahel, University of Maroua, Cameroon
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Pithayanukul P, Leanpolchareanchai J, Bavovada R. Inhibitory effect of tea polyphenols on local tissue damage induced by snake venoms. Phytother Res 2009; 24 Suppl 1:S56-62. [DOI: 10.1002/ptr.2903] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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