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Saponins as adipokines modulator: A possible therapeutic intervention for type 2 diabetes

World Journal of Diabetes 2017年第7期8卷 337-345页

作者： Olusola Olalekan Elekofehinti Oluwamodupe Cecilia Ejelonu Jean Paul Kamdem Oluwaseun Benedicta Akinlosotu isaac gbadura adanlawo Department of Biochemistry University of Ado-Ekiti Department of Biochemistry Adekunle Ajasin University Departamento de Ciências Biológicas Universidade Regional do Cariri-URCA Campus Pimenta Department of Biochemistry Federal University of TechnologyAkure

Development of type 2 diabetes has been linked to β-cell failure coupled with insulin resistance and obesity. Adipose tissue, known as the fat store, secretes a number of hormones and proteins collectively termed adipokines some of which regulate insulin sensitivity. Dysregulation in the secretion of adipokines has been linked to insulin resistance and type 2 diabetes. In this review, we sum-marized evidence of the role of adipokines with focus on leptin, adiponectin, adipsin, visfatin and apelin in the pathogenesis of type 2 diabetes and discussed the potential of saponins to modify the ill-regulated adipokines secretions, which could promote the use of this class of phytochemicals as potential antidiabetics agents.

关键词： Adipokines Adipose tissue Insulin resistance Antidiabetic Obesity

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African eggplant(Solanum anguivi Lam.)fruit with bioactive polyphenolic compounds exerts in vitro antioxidant properties and inhibits Ca^(2+)-induced mitochondrial swelling

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Asian Pacific Journal of Tropical Biomedicine 2013年第10期3卷 757-766页

作者： Olusola Olalekan Elekofehinti Jean Paul Kamdem Aline Augusti Bolingon Margareth Linde Athayde Seeger Rodrigo Lopes Emily Pansera Waczuk Ige Joseph Kade isaac gbadura adanlawo Joao Batista Teixeira Rocha Department of Biochemistry Adekunle Ajasin UniversityAkungbaOndo StateNigeria Postgraduate Programme in Biochemical Toxicology Department of ChemistryCCNE.Federal University of Santa Maria.Campus CamobiSanta MariaRS.97105-900Brazil Postgraduate Programme in Pharmaceutical Sciences Federal University of Santa MariaCampus CamohiSanta MariaRS97105-900.Brazil Toxicologia de Produtos Naturais e Sinteticos.Universidade Federal do Pampa CEP 97500-970 UruguaianaRSBrazil Department of Biochemistry Federal University of TechnologyAkureOndo StateNigeria Department of Biochemistry University of Ado EkitiEkiti State.Nigeria

Objective:To evaluate the antioxidant and radical scavenging activities of Solanum anguivi fruit(SAG)and its possible effect on mitochondrial permeability transition pore as well as mitochondrial membrane potential(△Ψ_m)isolated from rat ***:Antioxidant activity of SAG was assayed by using 2,2-diphenyl-1-picrylhydrazyl(DPPH),reducing power,iron chelation and ability to inhibit lipid peroxidation in both liver and brain homogenate of ***,the effect of SAG on mitochondrial membrane potential and mitochondrial swelling were *** and quantification of bioactive polyphenolics was done by ***:SAG exhibited potent and concentration dependent free radical-scavenging activity(IC_(50)/DPPH=275.03±7.8μg/mL).Reductive and iron chelation abilities also increase with increase in SAG *** also inhibited peroxidation of cerebral and hepatic lipids subjected to iron oxidative *** protected against Ca^(2+)(110μmol/L)-induced mitochondrial swelling and maintained the△Ψ_*** analysis revealed the presence of gallic acid[(17.54±0.04)mg/g],chlorogenic acid(21.90±0.02 mg/g),caffeic acid(16.64±0.01 mg/g).rutin[(14.71±0.03)mg/g]and quercetin[(7.39±0.05)mg/g].Conclusions:These effects could be attributed to the bioactive polyphenolic compounds present in the *** results suggest that SAG extract is a potential source of natural antioxidants that may be used not only in pharmaceutical and food industry but also in the treatment of diseases associated with oxidative stress.

关键词： Solanum anguivi fruit Antioxidant activity Oxidative stress Mitochondrial swelling HPLC Polyphenolic compounds MPTP

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