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Antihyperglycemic and hepatoprotective properties of miracle fruit(Synsepalum dulcificum) compared to aspartame in alloxan-induced diabetic mice

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Journal of Integrative Medicine 2020年第6期18卷 514-521页

作者： Suzan G.Haddad Mariam Mohammad karim raafat Fatima A.Saleh Department of Medical Laboratory Sciences.Faculty of Health Sciences Beirut Arab UniversityBeirut 115020Lebanon Department of Pharmaceutical Sciences.Faculty of Pharmacy.Beirut Arab University Beirut 115020Lebanon

Objective: This study was undertaken to investigate the antihyperglycemic potential of miracle fruit(MF)as well as its hepatic safety as compared to aspartame in alloxan-induced diabetic ***: MF extracts were prepared and screened for their phytochemical composition using highperformance liquid chromatography(HPLC). Total phenolic, flavonoid and tannin contents and antioxidant potential were also determined. Additionally, MF was evaluated for its sensory attributes. For in vivo work, MF ethanol extract at high(MFH: 500 mg/kg body weight [BW]) and low(MFL: 250 mg/kg BW) doses as well as aspartame were injected intraperitoneally into alloxan-induced diabetic *** glucose levels were determined following acute and subchronic treatment. At the end of the study,animals were sacrificed, serum was collected for biochemical analysis and liver tissues were obtained for histopathological ***: MF ethanol extract contained more flavonoids and tannins, and had higher 1,1-diphenyl-1-picrylhydrazyl radical-scavenging activity(79.61%) compared to MF aqueous extract(P < 0.05). HPLC analysis of MF ethanol extract also revealed the presence of 10 antioxidants with quercetin comprising the major polyphenol. Additionally, sensory analysis of MF showed that its intake is effective in masking undesirable sourness. Subchronic administration of MFH proved amelioration of hyperglycemia in mice as compared to aspartame. Moreover, aspartame treatment significantly elevated(P < 0.05) the level of alanine aminotransferase and had destructive effects on the liver histopathology;however, hepatic architecture was restored by low and high doses of ***: MF is an effective antihyperglycemic with hepatoprotective properties that can be used as a healthier alternative sweetening agent in place of aspartame for sour beverages.

关键词： Miracle fruit Synsepalum dulcificum Aspartame Histopathology Phytochemical analysis Sensory evaluation

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Phytochemical and anti-neuropathic investigations of Crocus sativus via alleviating inflammation, oxidative stress and pancreatic beta-cells regeneration

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Chinese Herbal Medicines 2020年第1期12卷 47-55页

作者： karim raafat Maha Aboul-Ela Abdalla El-Lakany Department of Pharmaceutical Sciences Faculty of PharmacyBeirut Arab UniversityBeirut 115020Lebanon

Objective:The aim of this study is to investigate the phytochemical and the long-term anti-neuropathic potentials of Crocus sativus cultivated in the University botanical garden,and explore its most bioactive compounds and their underlying mechanisms of ***:Phytochemical analysis and bio-guided isolation-procedures including RP-HPLC and1 H and13 C NMR utilizing biological models of diabetes,inflammation,and diabetic-neuropathy were *** saffron(S-RCED)and Spanish-saffron stigma(S-SP)alone or in combination with Camellia sinus(CS)were ***:The RP-HPLC analyses showed the presence of picrocrocin,crocin I,crocin II,crocin I’,crocin II’,and safranal(SAF)in both S-SP and S-RCED extracts with *** had been shown that SAF was the most bioactive-compound in Crocus *** S-SP and S-RCED possessed significant(P<0.05)anti-diabetic activities in acute(6 h),subchronic(8 d)and chronic(8 weeks)models.S-RCED had been proven with more hypoglycemic potentials when compared to S-SP and SAF.S-SP,S-RCED,and SAF produced significant anti-inflammatory and anti-nociceptive activities against carrageenan-induced inflammatory,hyperalgesic and tactile diabetic-neuropathy models,respectively.S-SP,S-RCED,and SAF elevated serum catalase,reduced glutathione,and insulin serum levels,ameliorated lipid peroxidation and Hb A1 c levels,and histopathologically regenerated the pancreatic *** with CS showed more significant efficacy than the single ***:The oxidative stress reduction,insulin secretagogue,and pancreatic beta-cells regeneration potentials might be responsible for the mechanism underlying the anti-diabetic,anti-inflammatory and anti-diabetic neuropathy ***,the cultivated Crocus sativus might be clinically useful for protecting against many serious-disorders.

关键词： Crocus sativus L neuropathy pancreatic histopathology phytochemical investigation university botanical garden

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