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Avelino ALN, Silva NVRE, Oliveira GBD, Silva AADS, Cavalcanti BC, Jamacaru FVF, Dornelas CA. Antioxidant and Antigenotoxic Actions of Gum Arabic on the Intestinal Mucosa, Liver and Bone Marrow of Swiss Mice Submitted to Colorectal Carcinogenesis. Nutr Cancer 2021; 74:956-964. [PMID: 34085880 DOI: 10.1080/01635581.2021.1931699] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Colorectal carcinogenesis is characterized by oxidative stress and the formation of aberrant crypts in its initial stages. Gum arabic (GA) is a natural product with antioxidant properties, and, therefore, supposed antitumor action. The aim of this study was to evaluate the effects of GA on the formation of aberrant crypts, as well as the local, hepatic, and systemic genotoxicity and oxidative stress. We induced colorectal carcinogenesis in Swiss male mice, afterwards treated them with water, 2.5% GA or 5% GA via gavage for twelve weeks and then performed surgery in order to obtain samples to analysis (proximal and distal colon, liver, blood, and bone marrow). The number of aberrant crypts in the GA-treated animals was lower than in the control groups. Likewise, there was a decline of colonic, hepatic, and systemic genotoxicity and oxidative stress. These results reflect the antioxidant role of GA and may lead to the development of treatments that inhibit colorectal carcinogenesis.
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Affiliation(s)
- André Luís Nunes Avelino
- Postgraduate Program in Medical-Surgical Sciences, School of Medicine, Federal University of Ceará (UFC), Fortaleza-CE, Brazil
| | | | | | - Antônio Adailson De Sousa Silva
- Nucleus for Research and Development of Medicines (NPDM), National Laboratory of Experimental Oncology, UFC, Fortaleza-CE, Brazil
| | - Bruno Coêlho Cavalcanti
- Nucleus for Research and Development of Medicines (NPDM), National Laboratory of Experimental Oncology, UFC, Fortaleza-CE, Brazil
| | - Francisco Vagnaldo Fechine Jamacaru
- Nucleus of Research and Development of Medicines (NPDM), Laboratory of Pharmacology and Preclinical Research, School of Medicine, UFC, Fortaleza-CE, Brazil
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Iliemene UD, Atawodi SEO. Preventive potential of dietary inclusion of Brachystegia eurycoma (Harms) seeds on N-methyl-N-nitrosourea-induced colon carcinogenesis in Wistar rats. JOURNAL OF ETHNOPHARMACOLOGY 2019; 238:111858. [PMID: 30953819 DOI: 10.1016/j.jep.2019.111858] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 04/01/2019] [Accepted: 04/01/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Brachystegia eurycoma seed is used as dietary condiment and as part of recipes for treating colorectal disorders, while laboratory studies have established that it contains crude fiber and polyphenols which are important in cancer prevention. AIM OF THE STUDY To establish the efficacy of a Nigerian diet in colon cancer prevention, a study was conducted to evaluate dietary inclusion of Brachystegia eurycoma seed in experimental colon carcinogenesis. METHODS Rats undergoing intra-rectal instillations of N-Methyl-N-nitrosourea (MNU) were fed B. eurycoma included diets at 0%, 2.5%, 5% and 10% for a period of ten (10) weeks following which they were sacrificed; blood and tissues were monitored for biochemical, histological and immunohistochemical parameters. RESULTS Brachystegia eurycoma significantly (P < 0.05) prevented MNU-induced elevation of malondialdehyde and carcinoembryonic antigen (CEA) as well as reduced activities of catalase and superoxide dismutase. The colon showed deep mucosal ulceration with moderate inter-glandular inflammation in the MNU control group, but only mild or no inflammation was observed in the colon of the MNU groups fed experimental diets. Similarly, colon immunohistochemistry assay showed that the dietary inclusion significantly prevented MNU-induced damage to mismatch repair gene (MutL homolog1). Positive relationship existed between fiber content of B. eurycoma seeds and MutL homolog1 protein expression while that between polyphenol/flavonoids contents of diets and CEA was negative. CONCLUSION These data suggest that both dietary fiber and polyphenol/flavonoids contribute synergistically or additively to the potential preventive effect of B. eurycoma seeds in colon carcinogenesis, presumably through mechanisms that involve limiting the extent of oxidative stress and preventing or delaying the onset of pro-carcinogenic inflammatory processes.
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Kuri-García A, Godínez-Santillán RI, Mejía C, Ferriz-Martínez RA, García-Solís P, Enríquez-Vázquez A, García-Gasca T, Guzmán-Maldonado SH, Chávez-Servín JL. Preventive Effect of an Infusion of the Aqueous Extract of Chaya Leaves ( Cnidoscolus aconitifolius) in an Aberrant Crypt Foci Rat Model Induced by Azoxymethane and Dextran Sulfate Sodium. J Med Food 2019; 22:851-860. [PMID: 31074673 DOI: 10.1089/jmf.2019.0031] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Aberrant crypt foci (ACF) is the precursor lesion of colorectal carcinogenesis (CRC), one of the most common malignancies in the world. Many studies have reported that people with higher phytochemical intake are at a reduced risk of developing ACF. One example of the botanical potential of preventive plant products is Cnidoscolus aconitifolius (CA), commonly known as Chaya. This study evaluated the phenolic profile of CA and the effects of the daily consumption of CA leaf infusion on the formation of ACF, histopathological lesions, and molecular biomarkers after azoxymethane (AOM) and dextran sulfate sodium (DSS) induced premalignant colon lesions in rats treated with for 16 and 32 weeks. The phenolic composition of the CA infusion was identified by reversed phase-high performance liquid chromatography-diode array detection (RP-HPCC-DAD). After sacrifice, a 4 cm segment was collected from the distal part of the colon and stained with methylene blue to look for ACF. Furthermore, 4 μm of colon, liver, and kidney was collected and stained with hematoxylin and eosin for histopathological analysis, along with 7 μm of colon for immunohistochemistry analysis. Eleven phenolic compounds were identified in the infusions, and ACF formation was reduced by 29.5% at the subchronic and by 64.6% at chronic stages. Lesions on kidney, liver, and colon tissue were also reduced. Our data suggest that CA treatment has preventive effects against AOM-/DSS-induced premalignant colon lesions in colon rats at the promotion level, inhibiting the cell proliferation of early neoplastic lesions and colonic inflammation through the decrease of β-catenin by 41.8% at the subchronic stage and 29% at the chronic stage, along with a 46.2% reduction of cyclooxygenase 2 (COX-2) at long term, despite a high expression of NF-κB (30.3% at the subchronic stage and 22.8% at the chronic stage).
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Affiliation(s)
- Aarón Kuri-García
- 1Department of Cell and Molecular Biology, School of Natural Science, Autonomous University of Queretaro, Queretaro, Mexico
| | - Rosa Iris Godínez-Santillán
- 1Department of Cell and Molecular Biology, School of Natural Science, Autonomous University of Queretaro, Queretaro, Mexico
| | - Carmen Mejía
- 1Department of Cell and Molecular Biology, School of Natural Science, Autonomous University of Queretaro, Queretaro, Mexico
| | | | - Pablo García-Solís
- 2Biomedical Research, School of Medicine, Autonomous University of Queretaro, Queretaro, Mexico
| | - Alejandro Enríquez-Vázquez
- 1Department of Cell and Molecular Biology, School of Natural Science, Autonomous University of Queretaro, Queretaro, Mexico
| | - Teresa García-Gasca
- 1Department of Cell and Molecular Biology, School of Natural Science, Autonomous University of Queretaro, Queretaro, Mexico
| | | | - Jorge Luis Chávez-Servín
- 1Department of Cell and Molecular Biology, School of Natural Science, Autonomous University of Queretaro, Queretaro, Mexico
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Braga VNL, Juanes CDC, Peres Júnior HDS, Sousa JRD, Cavalcanti BC, Jamacaru FVF, Lemos TLGD, Dornelas CA. Gum arabic and red propolis protecteting colorectal preneoplastic lesions in a rat model of azoxymethane1. Acta Cir Bras 2019; 34:e201900207. [PMID: 30843940 PMCID: PMC6585917 DOI: 10.1590/s0102-8650201900207] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 01/05/2019] [Indexed: 11/22/2022] Open
Abstract
Purpose To evaluate red propolis, gum arabic and L-lysine activity on colorectal
preneoplastic lesions induced by azoxymethane (AOM). Methods The study featured 4 control groups (I-IV) and 4 experimental groups
(V-VIII), totaling 48 rats. Once a week for 2 weeks, animals on control
groups received saline, while animals in experimental groups received
azoxymethane (15 mg/kg i.p.). The follow up along 16 weeks included daily
oral gavage to administer water (I and V), L-lysine (150 mg/kg)(II and VI),
própolis (100mg/5ml/kg)(III and VII), or gum arabic (5ml/kg)(IV and VIII).
Was performed surgery on the animals in the end of this time in order to
collect blood for biological assays (TBARS, GSH), followed by their
sacrifice to tissue extract. Results Oxidative stress (TBARS) and the number of aberrant crypt foci (ACF) in
distal colon were lower using própolis (p<0.01 for both parameters). Gum
arabic reduced preneoplastic lesions (ACF ≤ 4 crypts) on distal colon and on
the entire colon (p<0.05). Conclusions Red propolis reduced AOM-induced oxidative stress (TBARS) and total number
of ACF in the distal colon. L-lysine neither protected against nor enhanced
AOM-induced ACF. Gum arabic reduced the number of ACF.
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Affiliation(s)
- Vanessa Nogueira Lages Braga
- Fellow Master degree, Postgraduate Program in Medical Surgical Sciences, School of Medicine, Universidade Federal do Ceará (UFC), Fortaleza-CE, Brazil. Intellectual and scientific content of the study, technical procedures, manuscript preparation
| | - Camila de Carvalho Juanes
- Fellow Master degree in Pathology, School of Medicine, UFC, Fortaleza-CE, Brazil. Technical procedures, responsible for propolis extraction
| | | | - José Robson de Sousa
- Graduate student, Faculdade Maurício Nassau, Fortaleza-CE, Brazil. Technical procedures
| | - Bruno Coêlho Cavalcanti
- PhD, Department of Physiology and Pharmacology, National Laboratory of Experimental Oncology, UFC, Fortaleza-CE, Brazil. Biological assays
| | - Francisco Vagnaldo Fechine Jamacaru
- PhD in Surgery, Researcher, Nucleus of Research and Development of Medicines, Laboratory of Pharmacology and Preclinical Research, School of Medicine, UFC, Fortaleza-CE, Brazil. Analysis and interpretation of data, statistics analysis
| | - Telma Leda Gomes de Lemos
- PhD, Full Professor, Department of Organic and Inorganic Chemistry, UFC, Fortaleza-CE, Brazil. Analysis and interpretation of data, statistics analysis
| | - Conceição Aparecida Dornelas
- PhD, Associate Professor, Postgraduate Program in Pathology and Medical-Surgical Sciences, School of Medicine, UFC, Fortaleza-CE, Brazil. Design of the study, critical revision, final approval
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Sánchez-Chino XM, Jiménez Martínez C, León-Espinosa EB, Garduño-Siciliano L, Álvarez-González I, Madrigal-Bujaidar E, Vásquez-Garzón VR, Baltiérrez-Hoyos R, Dávila-Ortiz G. Protective Effect of Chickpea Protein Hydrolysates on Colon Carcinogenesis Associated With a Hypercaloric Diet. J Am Coll Nutr 2018; 38:162-170. [PMID: 30211662 DOI: 10.1080/07315724.2018.1487809] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Colon cancer occupies the third place in incidence worldwide; eating habits, in particular, consumption of hypercaloric diets, are relevant in its etiopathogenesis. On the other hand, foods can also modulate carcinogenesis: for example, proteins, which when hydrolyzed release peptides with biological activities, and legumes, especially, chickpea, represent a good source of hydrolysates. The objective of this work was to verify the inhibitory effect of chickpea hydrolyzed protein on azoxymethane (AOM)-induced carcinogenesis in mice fed a hypercaloric diet. METHODS We hydrolyzed chickpea protein by pepsin, pancreatin, and a combined pepsin-pancreatin system, to test its anticarcinogenic and hypercaloric activity in mice that had consumed a hypercaloric diet or a normal diet but were injected with azoxymethane (AOM). RESULTS A concentrate (70% proteins) was obtained from chickpea seeds (18.5% proteins), and extensive hydrolysates were obtained at 15 minutes, in all tested enzyme systems. The greatest activity was evidenced in the hydrolysates obtained with pepsin-pancreatin at 90 minutes. Animals that consumed the hypercaloric diet had a higher concentration of cholesterol and a higher atherogenic index, which were significantly reduced with the administration of chickpea protein hydrolysates with a dose-response effect (10, 20, or 30 mg/kg), whereas no effect was observed in animals that consumed the normal diet. In animals given AOM, aberrant crypts were observed, at a higher rate in animals that consumed the hypercaloric diet; with the consumption of hydrolysates by the animals that consumed either diet, the number of aberrant crypts was reduced with the 3 doses tested, and the effect was better in those animals fed the hypercaloric diet. The best effect in all tests was with 30 mg/kg body weight. CONCLUSION The consumption of chickpea protein hydrolysates might confer a protective effect against colon carcinogenesis.
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Affiliation(s)
- Xariss M Sánchez-Chino
- a Escuela Nacional de Ciencias Biológicas , Instituto Politécnico Nacional , Mexico City , Mexico.,b Cátedra-CONACyT, Departamento de Salud , El Colegio de la Frontera Sur-Villahermosa , Campeche , Mexico
| | | | - Erika B León-Espinosa
- a Escuela Nacional de Ciencias Biológicas , Instituto Politécnico Nacional , Mexico City , Mexico
| | | | - Isela Álvarez-González
- a Escuela Nacional de Ciencias Biológicas , Instituto Politécnico Nacional , Mexico City , Mexico
| | | | - Verónica R Vásquez-Garzón
- c Cátedra-CONACYT, Facultad de Medicina y Cirugía , Universidad Autónoma Benito Juárez de Oaxaca , Oaxaca de Juárez , Mexico
| | - Rafael Baltiérrez-Hoyos
- c Cátedra-CONACYT, Facultad de Medicina y Cirugía , Universidad Autónoma Benito Juárez de Oaxaca , Oaxaca de Juárez , Mexico
| | - Gloria Dávila-Ortiz
- a Escuela Nacional de Ciencias Biológicas , Instituto Politécnico Nacional , Mexico City , Mexico
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Frassinetti S, Gabriele M, Caltavuturo L, Longo V, Pucci L. Antimutagenic and antioxidant activity of a selected lectin-free common bean (Phaseolus vulgaris L.) in two cell-based models. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2015; 70:35-41. [PMID: 25631277 DOI: 10.1007/s11130-014-0453-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Legumes and particularly beans are a key food of Mediterranean diet representing an important source of proteins, fiber, some minerals and vitamins and bioactive compounds. We evaluated the antioxidant and anti-mutagenic effects of a new fermented powder of a selected lectin-free and phaseolamin-enriched variety of common bean (Phaseolus vulgaris L.), named Lady Joy. Lady Joy lysate (Lys LJ) was studied in human erythrocytes and in Saccharomyces cerevisiae yeast cells. The antioxidant and anti-hemolytic properties of Lys LJ, studied in an ex vivo erythrocytes system using the cellular antioxidant assay (CAA-RBC) and the hemolysis test, evidenced a dose-dependent antioxidant activity as well as a significant hemolysis inhibition. Besides, results evidenced that Lys LJ treatment significantly decreased the intracellular ROS concentration and mutagenesis induced by hydrogen peroxide in S. cerevisiae D7 strain. In conclusion, Lys LJ showed both an antimutagenic effect in yeast and a strong scavenging activity in yeast and human cells.
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Affiliation(s)
- Stefania Frassinetti
- National Research Council, Institute of Biology and Agricultural Biotechnology (IBBA), Pisa Unit, Research Area of Pisa, Via Moruzzi 1, 56124, Pisa, Italy,
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Busambwa K, Miller-Ceb R, Aboagye L, Dalrymple L, Boateng J, Shackelfor L, Walker L, Verghese M. Inhibitory Effect of Lentils, Green Split and Yellow Peas (Sprouted and
Non-sprouted) on Azoxymethane-induced Aberrant Crypt Foci in Fisher 344 Male
Rats. ACTA ACUST UNITED AC 2014. [DOI: 10.3923/ijcr.2014.27.36] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Lahouar L, Ghrairi F, Arem AE, Sghaeir W, Felah ME, Salem HB, Sriha B, Achour L. Attenuation of histopathological alterations of colon, liver and lung by dietary fibre of barley Rihane in azoxymethane-treated rats. Food Chem 2013; 149:271-6. [PMID: 24295706 DOI: 10.1016/j.foodchem.2013.10.101] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Revised: 09/11/2013] [Accepted: 10/21/2013] [Indexed: 11/27/2022]
Abstract
This study was carried out to determine the effect of dietary fibre (DF) of barley Rihane (BR) in the attenuation of colon, liver and lung histopathology alterations induced by azoxymethane (AOM) in rats. Rats were fed a control (C) or experimental diet containing 30% of BR. The intended rats for cancer treatment received two successive subcutaneous injections of azoxymethane (AOM) at 20mg/kg body weight. The colons were analyzed for crypt multiplicity after 12 weeks of treatment. A histological study of the colon, liver and lungs was determined. The results showed that the BR diet significantly reduced the number of aberrant crypt per focus and altered their distribution. In addition, DF of BR increased significantly the mucus secretion compared to control group. The use of the AOM as colon specific carcinogen substance altered the liver and lung architectures, whereas the presence of DF of BR could be a protective factor for these organs.
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Affiliation(s)
- Lamia Lahouar
- Unité de Recherche 03/UR/09-01 «Génome, Diagnostic Immunitaire et valorisation», Institut Supérieur de Biotechnologie de Monastir, Université de Monastir, Avenue Tahar Haddad, BP 74, 5000 Monastir, Tunisia.
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Oseguera-Toledo ME, de Mejia EG, Dia VP, Amaya-Llano SL. Common bean (Phaseolus vulgaris L.) hydrolysates inhibit inflammation in LPS-induced macrophages through suppression of NF-κB pathways. Food Chem 2011; 127:1175-85. [PMID: 25214111 DOI: 10.1016/j.foodchem.2011.01.121] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2010] [Revised: 12/08/2010] [Accepted: 01/26/2011] [Indexed: 12/20/2022]
Abstract
The objectives of this study were to evaluate the antioxidant capacity of protein hydrolysates of the common bean (Phaseolus vulgaris L.) varieties Negro 8025 and Pinto Durango and determine their effect on the markers of inflammation in lipopolysaccharide (LPS)-induced RAW 264.7 macrophages. Cell viability was determined and the percentage of viable cells was calculated and concentrations that allowed >80% cell viability were used to determine the markers of inflammation. Alcalase hydrolysates and pepsin-pancreatin hydrolysates showed the highest antioxidant capacity after 80 and 120min of hydrolysis, respectively. Alcalase hydrolysates of the common bean Pinto Durango at 120min inhibited inflammation, with IC50 values of 34.9±0.3, 13.9±0.3, 5.0±0.1 and 3.7±0.2μM, while var. Negro needed 43.6±0.2, 61.3±0.3, 14.2±0.3 and 48.2±0.1μM for the inhibition of cyclooxygenase-2 expression, prostaglandin E2 production, inducible nitric oxide synthase expression and nitric oxide production, respectively. Also, hydrolysates significantly inhibited the transactivation of NF-κB and the nuclear translocation of the NF-κB p65 subunit. In conclusion, hydrolysates from the common bean can be used to combat inflammatory and oxidative-associated diseases.
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Affiliation(s)
- Miguel E Oseguera-Toledo
- Programa de Posgrado en Alimentos del Centro de la República (PROPAC), Universidad Autónoma de Querétaro, Apdo. Postal 184, Querétaro, Qro. 76010, Mexico; Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Elvira Gonzalez de Mejia
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Vermont P Dia
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Silvia L Amaya-Llano
- Programa de Posgrado en Alimentos del Centro de la República (PROPAC), Universidad Autónoma de Querétaro, Apdo. Postal 184, Querétaro, Qro. 76010, Mexico.
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Ghafar SAA, Yazan LS, Tahir PM, Ismail M. Kenaf seed supercritical fluid extract reduces aberrant crypt foci formation in azoxymethane-induced rats. ACTA ACUST UNITED AC 2010; 64:247-51. [PMID: 20869858 DOI: 10.1016/j.etp.2010.08.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2010] [Revised: 08/18/2010] [Accepted: 08/27/2010] [Indexed: 11/15/2022]
Abstract
Kenaf (Hibiscus cannabinus) a plant of the family Malvaceae, is a valuable fiber plant native to India and Africa. Kenaf seeds contain alpha-linolenic acid, phytosterol such as β-sitosterol, vitamin E and other antioxidants with chemopreventive properties. In the present study we examined the hypothesis that kenaf seed 'supercritical fluid extract' (SFE) extract could suppress the early colon carcinogenesis in vivo by virtue of its bioactive compounds. To accomplish this goal, 60 male rats were randomly assigned to 5 groups which were (1) negative control group [not induced with azoxymethane (AOM)]; (2) positive control group (induced with AOM but received no treatment); (3) group treated with 500 mg/kg kenaf seed SFE extract; (4) group treated with 1000 mg/kg kenaf seed SFE extract; (5) group treated with 1500 mg/kg kenaf seed SFE extract. At 7 weeks of age, all rats except the negative control group received 15 mg/kg of AOM injection subcutaneously once a week for 2 weeks. Rats were euthanized at 13 weeks of the experiment. Number of ACF (mean±SD) ranged from 84.4±4.43 to 179.5±12.78 in group 2, 3, 4, 5. ACF reductions compared with the untreated group were 45.3, 51.4 and 53.1% in rats fed with 500, 1000 and 1500 mg/kg body weight, respectively. There were no significant differences in weight gain among groups. Our finding indicates that kenaf seed SFE extract reduced AOM-induced ACF in Sprague-Dawley male rats.
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Affiliation(s)
- Siti Aisyah Abd Ghafar
- Nutraceutical and Nutrigenomic Programme, Laboratory of Molecular Biomedicine, Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia
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11
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Faris MAIE, Takruri HR, Shomaf MS, Bustanji YK. Chemopreventive effect of raw and cooked lentils (Lens culinaris L) and soybeans (Glycine max) against azoxymethane-induced aberrant crypt foci. Nutr Res 2009; 29:355-62. [PMID: 19555818 DOI: 10.1016/j.nutres.2009.05.005] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2009] [Revised: 05/09/2009] [Accepted: 05/13/2009] [Indexed: 11/24/2022]
Abstract
Although lentils (Lens culinaris L) contain several bioactive compounds that have been linked to the prevention of cancer, the in vivo chemopreventive ability of lentils against chemically induced colorectal cancer has not been examined. Our present study examined the hypothesis that lentils could suppress the early carcinogenesis in vivo by virtue of their bioactive micro- and macroconstituents and that culinary thermal treatment could affect their chemopreventive potential. To accomplish this goal, we used raw whole lentils (RWL), raw split lentils (RSL), cooked whole lentils (CWL), and cooked split lentils (CSL). Raw soybeans (RSB; Glycine max) were used for the purpose of comparison with a well-studied chemopreventive agent. Sixty weanling Fischer 344 male rats, 4 to 5 weeks of age, were randomly assigned to 6 groups (10 rats/group): the control group (C) received AIN-93G diet, and treatment leguminous groups of RWL, CWL, RSL, CSL, and RSB received the treatment diets containing AIN-93G+5% of the above-mentioned legumes. After acclimatization for 1 week (at 5th to 6th week of age), all animals were put on the control and treatment diets separately for 5 weeks (from 6th to 11th week of age). At the end of the 5th week of feeding (end of 11th week of age), all rats received 2 subcutaneous injections of azoxymethane carcinogen at 15 mg/kg rat body weight per dose once a week for 2 consecutive weeks. After 17 weeks of the last azoxymethane injection (from 12th to 29th week of age), all rats were euthanized. Chemopreventive ability was assessed using colonic aberrant crypt foci and activity of hepatic glutathione-S-transferases. Significant reductions (P < .05) were found in total aberrant crypt foci number (mean +/- SEM) for RSB (27.33 +/- 4.32), CWL (33.44 +/- 4.56), and RSL (37.00 +/- 6.02) in comparison with the C group (58.33 +/- 8.46). Hepatic glutathione-S-transferases activities increased significantly (P < .05) in rats fed all treatment diets (from 51.38 +/- 3.66 to 67.94 +/- 2.01 micromol mg(-1) min(-1)) when compared with control (C) diet (26.13 +/- 1.01 micromol mg(-1) min(-1)). Our findings indicate that consumption of lentils might be protective against colon carcinogenesis and that hydrothermal treatment resulted in an improvement in the chemopreventive potential for the whole lentils.
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Affiliation(s)
- Mo'ez Al-Islam E Faris
- Department of Nutrition, Faculty of Pharmacy and Medical Sciences, Petra University, Amman, Jordan.
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