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Mehdizadeh T, Mohammadipour N, Langroodi AM, Raeisi M. Effect of walnut kernel septum membranes hydroalcoholic extract on the shelf life of traditional butter. Heliyon 2019; 5:e01296. [PMID: 31025004 PMCID: PMC6475893 DOI: 10.1016/j.heliyon.2019.e01296] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 02/05/2019] [Accepted: 02/26/2019] [Indexed: 11/28/2022] Open
Abstract
Incorporation of natural ingredients antioxidants in edible fats can profitably affect their oxidative stability during production and storage. The purposes of the current work were to assess the antioxidant and antimicrobial effect of walnut kernel septum membranes hydroalcohol extract (WHE) in traditional butter (TB). Antioxidant characterization of the extract was screened through methods of DPPH, reducing power and total phenolic assays. After preparation of traditional butter from yogurt, WHE was incorporated into TB at three different concentrations; 0.05%, 0.1% and 0.5% and compared with a control, BHT and tocopherol treated samples (200 mg of BHT and tocopherol/kg). Microbiological studies (Staphylococcus aureus, Coliforms, Psychrotrophic bacteria, yeasts and molds) were done during 90 days of storage time. Changes in Anisidine value (AV), acid value, peroxide value (PV) free fatty acids (FFA), Schaal and Totox value were monitored at 45-day intervals. Sensory evaluation was done using 10 semi-trained panelists based on the 5-point hedonic scale. It was found that the total phenolic content of WHE was 368.86 mg GAE/g. The BHT had higher antioxidant activity than WHE inhibiting 92.3% of the DPPH radical at 600 μg/mL. Peroxide value of TB treated with tocopherol, BHT and WHE 0.5% was 0.29 ± 0.07, 0.39 ± 0.07 and 0.52 ± 0.04 respectively. Furthermore, the WHE incorporated butter has shown low levels of free fatty acids, Schaal and Totox value when compared to control treatment. The WHE 0.5% incorporated sample had the most antimicrobial activity and it inhibited the growth of all the microorganisms (except Staphylococcus aureus) used in the study. Among the treated TB, the samples treated with the control and WHE 0.05% had the highest sensory attributes score. The study showed that WHE could be an excellent natural origin of antimicrobial and antioxidant agents which can be used in butter.
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Affiliation(s)
- Tooraj Mehdizadeh
- Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Urmia University, 1177, Urmia, Iran
| | - Neda Mohammadipour
- Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Urmia University, 1177, Urmia, Iran
| | - Ali Mojaddar Langroodi
- Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Urmia University, 1177, Urmia, Iran
| | - Mojtaba Raeisi
- Infectious Diseases Research Center, Golestan University of Medical Sciences, Gorgan, Iran
- Department of Nutrition, Faculty of Health, Golestan University of Medical Sciences, Gorgan, Iran
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Chemoprotective effects of butanol fraction of Buchholzia coriacea (Capparidaceae) against type 2 diabetes and oxidative stress in male Wistar rats. Biosci Rep 2019; 39:BSR20170665. [PMID: 28790167 PMCID: PMC6379225 DOI: 10.1042/bsr20170665] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 06/26/2017] [Accepted: 08/02/2017] [Indexed: 12/29/2022] Open
Abstract
Recent studies have shown that Type 2 diabetes (T2D) in rats can result through a synergy that links obesity to insulin resistance and β-cell dysfunction. The present study achieved T2D via high fructose (20%w/v, p.o.), streptozotocin single dose (40 mg/kg, i.p.) (HFSTZ) in rats. Also, chemoprotective potential of butanol fraction of Buchholzia coriacea (BFBC) was demonstrated. Control normal and diabetic untreated (HFSTZ-induced T2D) rats received CM-cellulose (1 mg/kg, p.o.). Diabetic rats received intragastric BFBC (20, 200, 400 mg/kg), glibenclamide (0.07 mg/kg), and BFBC (200 mg/kg) plus glibenclamide treatments, respectively. 2,2-Diphenyl-1-picrylhydrazyl, nitric oxide radical, hydroxyl radical scavenging activities, and α-amylase inhibition were assessed. After 2 weeks of treatments, blood glucose levels, lipid profiles, renal and liver function, serum insulin as well as in vivo oxidative stress biomarkers were assessed. BFBC shows highest antioxidants and α-amylase inhibitory activities in vitro HFSTZ-induced T2D produced hyperglycemia (P<0.05-0.001; F = 5.26-26.47), serum hyperinsulinemia (six-folds) plus elevated lipid peroxidation levels. Similarly, there were altered lipid profiles, liver and renal biomarker enzymes plus weight loss. BFBC administration alone or in combination with glibenclamide reversed T2D symptomatologies in treated animals, and improved body weights against control diabetic rats. In vivo antioxidant activities also improved while histological sections in treated rats show reduced tissue damage in pancreas, kidneys, liver, and heart, respectively. Oleic, stearic, 2-methyl-pyrrolidine-2-carboxylic, and n-hexadecanoic acids were present in BFBC in large quantities given GC-MS analysis. Overall, data from the present study suggest chemoprotective potentials of BFBC against HFSTZ-induced T2D rats.
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Olatunde OO, Benjakul S. Natural Preservatives for Extending the Shelf-Life of Seafood: A Revisit. Compr Rev Food Sci Food Saf 2018; 17:1595-1612. [PMID: 33350137 DOI: 10.1111/1541-4337.12390] [Citation(s) in RCA: 132] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 07/24/2018] [Accepted: 07/27/2018] [Indexed: 11/30/2022]
Abstract
Consumer demand for minimally processed seafood that retains its sensory and nutritional properties after handling and storage is increasing. Nevertheless, quality loss in seafood occurs immediately after death, during processing and storage, and is associated with enzymatic, microbiological, and chemical reactions. To maintain the quality, several synthetic additives (preservatives) are promising for preventing the changes in texture and color, development of unpleasant flavor and rancid odor, and loss of nutrients of seafood during storage at low temperature. However, the use of these preservatives has been linked to potential health hazards. In this regard, natural preservatives with excellent antioxidant and antimicrobial properties have been extensively searched and implemented as safe alternatives in seafood processing, with the sole purpose of extending shelf-life. Natural preservatives commonly used include plants extracts, chitosan and chitooligosaccharide, bacteriocins, bioactive peptides, and essential oils, among others. This review provides updated information about the production, mode of action, applications, and limitations of these natural preservatives in seafood preservation.
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Affiliation(s)
| | - Soottawat Benjakul
- Dept. of Food Technology, Faculty of Agro-Industry, Prince of Songkla Univ., Songkhla, 90112, Thailand
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Antimalarial Activity of Croton macrostachyus Stem Bark Extracts against Plasmodium berghei In Vivo. J Pathog 2018; 2018:2393854. [PMID: 29984002 PMCID: PMC6015669 DOI: 10.1155/2018/2393854] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 04/13/2018] [Accepted: 05/02/2018] [Indexed: 12/05/2022] Open
Abstract
There is an increasing need for innovative drug and prophylaxis discovery against malaria. The aim of the present study was to test in vivo antiplasmodial activity of Croton macrostachyus H. (Euphorbiaceae) stem bark extracts from Kenyan folkloric medicine. Inbred Balb/c mice were inoculated with erythrocytes parasitized with Plasmodium berghei (ANKA). Different doses (500, 250, and 100 mg/kg) of C. macrostachyus ethyl acetate, methanol, aqueous, and isobutanol extracts were administrated either after inoculation (Peters' 4-day suppressive test) or before inoculation (chemoprotective test) of the parasitized erythrocytes. All the extracts showed significant suppression of parasitemia compared to control (p < 0.001): for the ethyl acetate extract in the range of 58–82%, for the methanol extract in the range of 27–68%, for the aqueous extract in the range of 24–72%, and for the isobutanol extract in the range of 61–80%. Chemoprotective effect was significant (p < 0.001) and the suppression caused by the ethyl acetate extract was between 74 and 100%, by the methanol extract between 57 and 83%, and by the isobutanol extract between 86–92%. The study showed that it is possible to inhibit the growth of the parasites by various stem bark extracts of C. macrostachyus in Balb/c mice supporting the folkloric use of the plant against malaria.
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Bading Taika B, Bouckandou M, Souza A, Bourobou Bourobou HP, MacKenzie LS, Lione L. An overview of anti-diabetic plants used in Gabon: Pharmacology and toxicology. JOURNAL OF ETHNOPHARMACOLOGY 2018; 216:203-228. [PMID: 29305175 DOI: 10.1016/j.jep.2017.12.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 12/24/2017] [Accepted: 12/25/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The management of diabetes mellitus management in African communities, especially in Gabon, is not well established as more than 60% of population rely on traditional treatments as primary healthcare. The aim of this review was to collect and present the scientific evidence for the use of medicinal plants that are in currect by Gabonese traditional healers to manage diabetes or hyperglycaemia based here on the pharmacological and toxicological profiles of plants with anti-diabetic activity. There are presented in order to promote their therapeutic value, ensure a safer use by population and provide some bases for further study on high potential plants reviewed. MATERIALS AND METHODS Ethnobotanical studies were sourced using databases such as Online Wiley library, Pubmed, Google Scholar, PROTA, books and unpublished data including Ph.D. and Master thesis, African and Asian journals. Keywords including 'Diabetes', 'Gabon', 'Toxicity', 'Constituents', 'hyperglycaemia' were used. RESULTS A total of 69 plants currently used in Gabon with potential anti-diabetic activity have been identified in the literature, all of which have been used in in vivo or in vitro studies. Most of the plants have been studied in human or animal models for their ability to reduce blood glucose, stimulate insulin secretion or inhibit carbohydrates enzymes. Active substances have been identified in 12 out of 69 plants outlined in this review, these include Allium cepa and Tabernanthe iboga. Only eight plants have their active substances tested for anti-diabetic activity and are suitables for further investigation. Toxicological data is scarce and is dose-related to the functional parameters of major organs such as kidney and liver. CONCLUSION An in-depth understanding on the pharmacology and toxicology of Gabonese anti-diabetic plants is lacking yet there is a great scope for new treatments. With further research, the use of Gabonese anti-diabetic plants is important to ensure the safety of the diabetic patients in Gabon.
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Affiliation(s)
- B Bading Taika
- Department of Pharmacy, Pharmacology and Postgraduate Medicine, School of Life and Medical Sciences, University of Hertfordshire, UK; IPHAMETRA Institute, Pharmacology and Toxicology Department, CENAREST, Libreville, Gabon.
| | - M Bouckandou
- IPHAMETRA Institute, Pharmacology and Toxicology Department, CENAREST, Libreville, Gabon
| | - A Souza
- Institut National Supérieur d'Agronomie et de Biotechnologies (INSAB), Franceville, Gabon
| | - H P Bourobou Bourobou
- IPHAMETRA Institute, Pharmacology and Toxicology Department, CENAREST, Libreville, Gabon
| | - L S MacKenzie
- Department of Pharmacy, Pharmacology and Postgraduate Medicine, School of Life and Medical Sciences, University of Hertfordshire, UK
| | - L Lione
- Department of Pharmacy, Pharmacology and Postgraduate Medicine, School of Life and Medical Sciences, University of Hertfordshire, UK
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Bin Sayeed MS, Karim SMR, Sharmin T, Morshed MM. Critical Analysis on Characterization, Systemic Effect, and Therapeutic Potential of Beta-Sitosterol: A Plant-Derived Orphan Phytosterol. MEDICINES (BASEL, SWITZERLAND) 2016; 3:E29. [PMID: 28930139 PMCID: PMC5456237 DOI: 10.3390/medicines3040029] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 10/27/2016] [Accepted: 11/07/2016] [Indexed: 12/03/2022]
Abstract
Beta-sitosterol (BS) is a phytosterol, widely distributed throughout the plant kingdom and known to be involved in the stabilization of cell membranes. To compile the sources, physical and chemical properties, spectral and chromatographic analytical methods, synthesis, systemic effects, pharmacokinetics, therapeutic potentials, toxicity, drug delivery and finally, to suggest future research with BS, classical as well as on-line literature were studied. Classical literature includes classical books on ethnomedicine and phytochemistry, and the electronic search included Pubmed, SciFinder, Scopus, the Web of Science, Google Scholar, and others. BS could be obtained from different plants, but the total biosynthetic pathway, as well as its exact physiological and structural function in plants, have not been fully understood. Different pharmacological effects have been studied, but most of the mechanisms of action have not been studied in detail. Clinical trials with BS have shown beneficial effects in different diseases, but long-term study results are not available. These have contributed to its current status as an "orphan phytosterol". Therefore, extensive research regarding its effect at cellular and molecular level in humans as well as addressing the claims made by commercial manufacturers such as the cholesterol lowering ability, immunological activity etc. are highly recommended.
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Affiliation(s)
| | - Selim Muhammad Rezaul Karim
- Department of Pharmacy, Daffodil International University, Dhaka-1207, Bangladesh.
- Department of Pharmaceutical Chemistry, University of Dhaka, Dhaka-1000, Bangladesh.
| | - Tasnuva Sharmin
- Department of Pharmaceutical Chemistry, University of Dhaka, Dhaka-1000, Bangladesh.
| | - Mohammed Monzur Morshed
- Department of Biochemistry and Molecular, Biology, University of Dhaka, Dhaka-1000, Bangladesh.
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Antimicrobial Activity of Croton macrostachyus Stem Bark Extracts against Several Human Pathogenic Bacteria. J Pathog 2016; 2016:1453428. [PMID: 27293897 PMCID: PMC4879225 DOI: 10.1155/2016/1453428] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 03/31/2016] [Accepted: 04/13/2016] [Indexed: 11/17/2022] Open
Abstract
In Kenya, leaves and roots from Croton macrostachyus are used as a traditional medicine for infectious diseases such as typhoid and measles, but reports on possible antimicrobial activity of stem bark do not exist. In this study, the antibacterial and antifungal effects of methanol, ethyl acetate and butanol extracts, and purified lupeol of C. macrostachyus stem bark were determined against important human gram-negative pathogens Escherichia coli, Salmonella typhi, Klebsiella pneumoniae, and Enterobacter aerogenes, gram-positive Listeria monocytogenes, and a fungus Candida albicans. The most promising broad scale antimicrobial activity against all the studied pathogens was shown by the ethyl acetate extract. The ethyl acetate extract induced the zone of inhibition between 10.1 ± 0.6 mm and 16.0 ± 1.2 mm against S. typhi, E. coli, K. pneumoniae, E. aerogenes, and L. monocytogenes with weaker antimicrobial activity against C. albicans (zone of inhibition: 5.6 ± 1.0 mm). The antibiotic controls (amoxicillin, ciprofloxacin, ampicillin, benzylpenicillin, clotrimazole, and cefotaxime) showed antimicrobial activity with zones of inhibition within 13.4 ± 0.7–22.1 ± 0.9 mm. The ethyl acetate extract had MIC in the range of 125–250 mg/mL against all the studied bacteria and against C. albicans MIC was 500 mg/mL. The present results give scientific evidence and support the traditional use of C. macrostachyus stem bark as a source for antimicrobials. We show that C. macrostachyus stem bark lupeol is a promising antimicrobial agent against several important human pathogens.
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Abd El-All AS, Osman SA, Roaiah HMF, Abdalla MM, Abd El Aty AA, AbdEl-Hady WH. Potent anticancer and antimicrobial activities of pyrazole, oxazole and pyridine derivatives containing 1,2,4-triazine moiety. Med Chem Res 2015. [DOI: 10.1007/s00044-015-1460-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ezike AC, Onyeto CA, Nwabunike IA, Mbaoji FN, Attah BE, Amanambu SO, Okoli CO. Anti-inflammatory activity of Buchholzia coriacea Engl. (Capparaceae) leaf extract: evaluation of components of the inflammatory response involved. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2015; 12:153-158. [PMID: 25781717 DOI: 10.1515/jcim-2014-0046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Accepted: 12/23/2014] [Indexed: 06/04/2023]
Abstract
BACKGROUND Earlier studies in our laboratory demonstrated the anti-inflammatory activity of Buchholzia coriacea Engl. (Capparaceae) leaf extract, a herbal remedy used to treat disorders of inflammation. This study was undertaken to evaluate its anti-inflammatory mechanism(s). METHODS The effects of methanol leaf extract of B. coriacea (200 and 400 mg/kg) on vascular permeability and leukocyte migration were studied in rodents, while activity on complement system and membrane stabilization were evaluated in vitro. RESULTS The extract (200 and 400 mg/kg) inhibited acetic acid-induced increase in vascular permeability in a non-dose-related manner and significantly (p < 0.05) reduced the total and differential leukocyte counts, respectively, in a dose-related manner. It also significantly (p < 0.05) inhibited complement-induced hemolysis of sheep red blood cells (40-72%) and moderately inhibited heat- (6%) and hypotonic solution-(24%) induced hemolysis in vitro in a non-dose-related manner. CONCLUSIONS Results demonstrated that the anti-inflammatory activity of B. coriacea leaf extract is mediated through inhibition of increase in vascular permeability, leukocyte migration and complement system, and enhanced membrane stabilization.
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Jose M, Cyriac MB, Pai V, Varghese I, Shantaram M. Antimicrobial properties of Cocos nucifera (coconut) husk: An extrapolation to oral health. J Nat Sci Biol Med 2014; 5:359-64. [PMID: 25097415 PMCID: PMC4121915 DOI: 10.4103/0976-9668.136184] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Brushing the teeth with fibrous husk of Cocos nucifera (coconut) is a common oral hygiene practice among people of rural areas of South India. However, the probable antimicrobial properties of this plant material against common oral pathogens have not been proved scientifically. Therefore, the present study was designed. MATERIALS AND METHODS Alcoholic extract of the husk of Cocos nucifera was prepared and the antimicrobial properties against common oral pathogens like cariogenic bacteria, periodontal pathogens, and candidal organisms were performed by the Agar Well Diffusion Method. The results obtained were then subjected to statistical analysis using One-Way Analysis of Variance (ANOVA) and the Tukey's Honestly Significant Difference (HSD). RESULTS The alcoholic extract of Cocos nucifera showed a significant concentration-dependent antimicrobial activity, expressed as a zone of inhibition with respect to all tested organisms except Actinomyces species. The inhibitory effect was more significant, with a majority of cariogenic organisms and Candida, with a zone of inhibition ranging from 4.6 mm to 16.3 mm. However, the effect was lesser with Cocos nucifera compared to chlorhexidine. Minimum inhibitory concentration (MIC) ranged from 50 mg/ml to 75 mg/ml. CONCLUSION Cocos nucifera has a significant inhibitory action against common oral pathogens, indicating the presence of highly effective antimicrobial compounds. Therefore, it is proved that its use can contribute to oral health to a great extent. Identification of these active compounds provides the scope for incorporating it into a modern oral care system, so as to control oral diseases.
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Affiliation(s)
- Maji Jose
- Department of Oral Pathology, Yenepoya Dental College, Yenepoya University, Mangalore, India
| | - Maria B Cyriac
- Department of Oral Pathology, Kannur Dental College, Anjarankandy, Kannur, Kerala, India
| | - Vidya Pai
- Department of Microbiology, Yenepoya Medical College, Yenepoya University, Mangalore, India
| | - Ipe Varghese
- Department of Oral Pathologist and Registrar, Kerala University of Health Sciences, Thrissur, Kerala, India
| | - Manjula Shantaram
- Department of Biochemistry, PG Centre, Chikka Aluwara, Somawarpet taluk, Kodagu, India
- Department of Biochemistry, Yenepoya Medical College, Yenepoya University, Mangalore, Karnataka, India
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Adiko M, Bouttier S, Okpekon TA, Lambert S, Ake-Assi L, Kablan BJ, Champy P. Phytothérapie traditionnelle des conjonctivites en milieu urbain ivoirien : enquête sur les deux marchés aux plantes médicinales d’Abidjan. ACTA ACUST UNITED AC 2014. [DOI: 10.1080/12538078.2013.864998] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Olaiya CO, Omolekan TO. Antihypercholesterolemic activity of ethanolic extract of Buchholzia coriacea in rats. Afr Health Sci 2013; 13:1084-90. [PMID: 24940336 PMCID: PMC4056488 DOI: 10.4314/ahs.v13i4.32] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Hypercholesterolemia is a condition characterised with high level of cholesterol in the blood. OBJECTIVES The effect of ethanolic extract of Buchholzia coriacea (EEBC) on the lipid profile levels and extent of lipid peroxidation in hypercholesterolemic albino rats was investigated in this study. METHODS Thirty albino rats were divided into six different groups which consist of group 1 (control), group 2 (hypercholesterolemic rats), group 3 (hypercholesterolemic rats treated with ethanolic extract of EEBC), group 4 (hypercholesterolemic rats treated with questran), group 5 (normal rats treated with EEBC) and group 6 (normal rats treated with questran). The rats were sacrificed at the end of the sixth week and assay conducted for Aspartate Transaminase (AST), Alanine Transaminase (ALT), lipid profile and biomarker of oxidative stress. RESULTS The serum and liver total cholesterol and LDL - cholesterol levels as well as lipid peroxidation in the EEBC-treated hypercholesterolemic rats were significantly reduced (p < 0.05) when compared with the untreated hypercholesterolemic rats. The activities of AST and ALT in EEBC - treated hypercholesterolemic rats were not significantly different (p > 0.05) from the control. CONCLUSIONS The results suggest that Buchholzia coriacea seeds contain potent antihypercholesterolemic agent which may find clinical application in ameliorating hypercholesterolemia and its attendant complications.
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Affiliation(s)
- C O Olaiya
- Department of Biochemistry, University of Ibadan, Ibadan, Nigeria
| | - T O Omolekan
- Department of Biochemistry, University of Ibadan, Ibadan, Nigeria
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Antibacterial Activities of Selected Cameroonian Plants and Their Synergistic Effects with Antibiotics against Bacteria Expressing MDR Phenotypes. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 2012:623723. [PMID: 22474511 PMCID: PMC3304440 DOI: 10.1155/2012/623723] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/20/2011] [Accepted: 12/13/2011] [Indexed: 11/17/2022]
Abstract
The present work was designed to assess the antibacterial properties of the methanol extracts of some Cameroonian medicinal plants and the effect of their associations with currently used antibiotics on multidrug resistant (MDR) Gram-negative bacteria overexpressing active efflux pumps. The antibacterial activities of twelve methanol extracts of medicinal plants were evaluated using broth microdilution. The results of this test showed that three extracts Garcinia lucida with the minimal inhibitory concentrations (MIC) varying from 128 to 512 μg/mL, Garcinia kola (MIC of 256 to 1024 μg/mL), and Picralima nitida (MIC of 128 to 1024 μg/mL) were active on all the twenty-nine studied bacteria including MDR phenotypes. The association of phenylalanine arginine β-naphthylamide (PAβN or efflux pumps inhibitor) to different extracts did not modify their activities. At the concentration of MIC/2 and MIC/5, the extracts of P. nitida and G. kola improved the antibacterial activities of some commonly used antibiotics suggesting their synergistic effects with the tested antibiotics. The results of this study suggest that the tested plant extracts and mostly those from P. nitida, G. lucida and G. kola could be used alone or in association with common antibiotics in the fight of bacterial infections involving MDR strains.
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Synthesis of new transition metal complexes of 1H-perimidine derivatives having antimicrobial and anti-inflammatory activities. RESEARCH ON CHEMICAL INTERMEDIATES 2012. [DOI: 10.1007/s11164-011-0482-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Oskoueian E, Abdullah N, Ahmad S, Saad WZ, Omar AR, Ho YW. Bioactive compounds and biological activities of Jatropha curcas L. kernel meal extract. Int J Mol Sci 2011; 12:5955-70. [PMID: 22016638 PMCID: PMC3189762 DOI: 10.3390/ijms12095955] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Revised: 07/20/2011] [Accepted: 08/22/2011] [Indexed: 11/28/2022] Open
Abstract
Defatted Jatropha curcas L. (J. curcas) seed kernels contained a high percentage of crude protein (61.8%) and relatively little acid detergent fiber (4.8%) and neutral detergent fiber (9.7%). Spectrophotometric analysis of the methanolic extract showed the presence of phenolics, flavonoids and saponins with values of 3.9, 0.4 and 19.0 mg/g DM, respectively. High performance liquid chromatography (HPLC) analyses showed the presence of gallic acid and pyrogallol (phenolics), rutin and myricetin (flavonoids) and daidzein (isoflavonoid). The amount of phorbol esters in the methanolic extract estimated by HPLC was 3.0 ± 0.1 mg/g DM. Other metabolites detected by GC-MS include: 2-(hydroxymethyl)-2 nitro-1,3-propanediol, β-sitosterol, 2-furancarboxaldehyde, 5-(hydroxymethy) and acetic acid in the methanolic extract; 2-furancarboxaldehyde, 5-(hydroxymethy), acetic acid and furfural (2-furancarboxaldehyde) in the hot water extract. Methanolic and hot water extracts of kernel meal showed antimicrobial activity against both Gram positive and Gram negative pathogenic bacteria (inhibition range: 0-1.63 cm) at the concentrations of 1 and 1.5 mg/disc. Methanolic extract exhibited antioxidant activities that are higher than hot water extract and comparable to β-carotene. The extracts tended to scavenge the free radicals in the reduction of ferric ion (Fe(3+)) to ferrous ion (Fe(2+)). Cytotoxicity assay results indicated the potential of methanolic extract as a source of anticancer therapeutic agents toward breast cancer cells.
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Affiliation(s)
- Ehsan Oskoueian
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; E-Mails: (E.O.); (W.Z.S.)
| | - Norhani Abdullah
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; E-Mail:
- Institute of Tropical Agriculture, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Syahida Ahmad
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; E-Mail:
| | - Wan Zuhainis Saad
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; E-Mails: (E.O.); (W.Z.S.)
| | - Abdul Rahman Omar
- Institute of Bioscience, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; E-Mails: (A.R.O.); (Y.W.H.)
| | - Yin Wan Ho
- Institute of Bioscience, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; E-Mails: (A.R.O.); (Y.W.H.)
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Kuete V, Krusche B, Youns M, Voukeng I, Fankam AG, Tankeo S, Lacmata S, Efferth T. Cytotoxicity of some Cameroonian spices and selected medicinal plant extracts. JOURNAL OF ETHNOPHARMACOLOGY 2011; 134:803-812. [PMID: 21291988 DOI: 10.1016/j.jep.2011.01.035] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2010] [Revised: 12/30/2010] [Accepted: 01/21/2011] [Indexed: 05/30/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Several medicinal plants and spices are used traditionally to treat cancers in Cameroon. AIM Methanol extracts from thirty-four spices and plants, with related ethnobotanical use were investigated for their in vitro cytotoxicity on the human pancreatic cancer cell line MiaPaCa-2, leukemia CCRF-CEM cells and their multidrug resistant (MDR) subline CEM/ADR5000, and the normal human umbilical vein endothelial cells (HUVECs). In addition the anti-angiogenic properties of the most active extracts were investigated. MATERIAL AND METHODS The MTS [3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium] assay was used for cytotoxic studies and the CAM-assay (chicken-chorioallantoic-membrane-assay) for anti-angiogenesis test. RESULTS The results of the cytotoxicity tests indicated that, when tested at 20 μg/ml, extracts from Xylopia aethiopica, Echinops giganteus, Imperata cylindrica, Dorstenia psilirus and Piper capense were able to inhibit more that 50% the proliferation of the three tested cancer cells (MiaPaCa-2, CEM/ADR5000 CCRF-CEM). The lowest IC(50) values of 6.86 μg/ml on MiaPaCa-2 and 3.91 μg/ml on CCRF-CEM cells were obtained with X. aethiopica, while the corresponding value of 6.56 μg/ml was obtained with P. capense on CEM/ADR5000 cells. Against leukemia cells, no cross-resistance was observed with I. cylindrica, P. capense and Zinziber officinalis. Extracts from D. psilirus and E. giganteus were able to inhibit angiogenesis by more than 50% in quail embryo. CONCLUSION The overall results of the present study provide supportive data on the use of some Cameroonian plants for cancer treatment.
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Affiliation(s)
- Victor Kuete
- Department of Biochemistry, Faculty of Science, University of Dschang, Cameroon
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Anthelmintic activities of chloroform and methanol extracts of Buchholzia coriacea Engler seed. Parasitol Res 2011; 109:441-4. [DOI: 10.1007/s00436-011-2274-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2010] [Accepted: 01/26/2011] [Indexed: 10/18/2022]
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Beneficial health effects of lupeol triterpene: A review of preclinical studies. Life Sci 2011; 88:285-93. [DOI: 10.1016/j.lfs.2010.11.020] [Citation(s) in RCA: 204] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2010] [Revised: 11/05/2010] [Accepted: 11/15/2010] [Indexed: 01/11/2023]
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Singh N, Khatoon S, Srivastava N, Rawat A, Mehrotra S. Qualitative and quantitative standardization ofMyrica esculentaBuch.-Ham. stem bark by use of HPTLC. JPC-J PLANAR CHROMAT 2009. [DOI: 10.1556/jpc.22.2009.4.9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Hue Ngan D, Hoai HTC, Mai Huong L, Hansen PE, Vang O. Bioactivities and chemical constituents of a Vietnamese medicinal plant Che Vang,Jasminum subtriplinerveBlume (Oleaceae). Nat Prod Res 2008; 22:942-9. [DOI: 10.1080/14786410701647119] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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