In Vitro and In Vivo Antidiabetic Activity, Phenolic Content and Microscopical Characterization of Terfezia claveryi
Authors : Ala’ Abu-Odeh ,Mayadah Shehadeh,Ghadeer A. R. Y. Suaifan 2ORCID,Nida Karameh ,Diana Abdel Rahman and Yasser Kandil
Abstract : Terfezia claveryi (T. claveryi) is used by traditional healers in the Middle East region to treat several diseases, including diabetes. The present study evaluated the total phenolic and investigated the blood-glucose-lowering potential of different aqueous extracts of this selected truffle using in vitro and in vivo models. The phytochemical profile was examined using UPLC-MS. The macerate and the microwave-assisted extract were the richest in phenolic compounds. All T. claveryi extracts exhibited a remarkable α-glucosidase inhibitory effect in vitro, with an IC50 of 2.43, 3.26, 5.18 and 3.31 mg/mL for the aqueous microwave-assisted extract macerate, infusion and decoction, respectively. On the other hand, in the high-fat diet alloxan-induced diabetic mice model, all tested crude aqueous extracts exhibited a significant antihyperglycemic activity (p < 0.05). Four hours after the administration of the 250 mg/kg dose, the macerate was able to induce a 29.4% blood-glucose-lowering effect compared to a 24.8% reduction induced by the infusion, which was sustained for a further two hours. The hypoglycemic effect (29.3% and 32.4%) was also recorded six hours after the administration of the single dose 500 mg/kg of the macerate and the infusion, respectively. Truffle extracts exhibited antidiabetic activity both in vitro and in vivo, providing a rationale for the traditional use as a natural hypoglycemic.
Keywords : diabetes; truffle; Terfezia claveryi, total phenols; α-glucosidas inhibition; antihyperglycemic; high-fat diet; alloxan; type 2 diabetes mice model.
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Plants Secondary Metabolites as Blood Glucose-Lowering Molecules
Authors : Mayadah Bashir Shehadeh,Ghadeer A. R. Y. Suaifan and Ala’ Mustafa Abu-Odeh
Abstract : Recently, significant advances in modern medicine and therapeutic agents have been achieved. However, the search for effective antidiabetic drugs is continuous and challenging. Over the past decades, there has been an increasing body of literature related to the effects of secondary metabolites from botanical sources on diabetes. Plants-derived metabolites including alkaloids, phenols, anthocyanins, flavonoids, stilbenoids, saponins, tannins, polysaccharides, coumarins, and terpenes can target cellular and molecular mechanisms involved in carbohydrate metabolism. In addition, they can grant protection to pancreatic beta cells from damage, repairing abnormal insulin signaling, minimizing oxidative stress and inflammation, activating AMP-activated protein kinase (AMPK), and inhibiting carbohydrate digestion and absorption. Studies have highlighted many bioactive naturally occurring plants’ secondary metabolites as candidates against diabetes. This review summarizes the current knowledge compiled from the latest studies published during the past decade on the mechanism-based action of plants-derived secondary metabolites that can target various metabolic pathways in humans against diabetes. It is worth mentioning that the compiled data in this review will provide a guide for researchers in the field, to develop candidates into environment-friendly effective, yet safe antidiabetics.
Keywords : Diabetes; secondary metabolites; alkaloids; flavonoids; coumarins; insulin signal
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Middle East Medicinal Plants in the Treatment of Diabetes: A Review
Authors : Alaa M. Abu-Odeh, and Wamidh H. Talib
Abstract : Diabetes is a global health problem, and the number of diabetic patients is in continuous rise. Conventional antidiabetic therapies are associated with high costs and limited efficiency. The use of traditional medicine and plant extracts to treat diabetes is gaining high popularity in many countries. Countries in the Middle East region have a long history of using herbal medicine to treat different diseases, including diabetes. In this review, we compiled and summarized all the in vivo and in vitro studies conducted for plants with potential antidiabetic activity in the Middle East region. Plants of the Asteraceae and Lamiaceae families are the most investigated. It is hoped that this review will contribute scientifically to evidence the ethnobotanical use of medicinal plants as antidiabetic agents. Work has to be done to define tagetes, mechanism of action and the compound responsible for activity. In addition, safety and pharmacokinetic parameters should be investigated.
Keywords : antidiabetic plants; natural products; hyperglycemia; plant extracts
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Complementary and alternative medicine use for weight management among females in Jordan: a community-based survey
Authors : Mayadah Bashir Shehadeh, Ghadeer Suaifan,Alaa Abu-Odeh and Rula Darwish
Abstract : Background: The relationship between obesity and various chronic diseases is well documented. In Jordan, the prevalence of overweight (30.0%) and obesity (38.8%) among females is on the rise, encouraging many adults to rely on alternative health care methods to manage their weight. Aims: We explored the status of complementary and alternative medicine use for weight management among adult females in Jordan and the possible relationship between complementary and alternative medicine use and body mass index. Methods: An interviewer-administered, structured questionnaire was used to collect data on the use and safety of complementary and alternative medicine for weight management from 858 women in 2015. Responses were coded and analysed using SPSS, version 20. Results: Around 40% of the respondents reported using some form of complementary and alternative medicine for weight management. Commercial dietary supplements (31.2%), herbal remedies (26.7%) and folk remedies (18.0%) were commonly used. Green tea and fibre tablets were the most widely used herbal supplements. Logistic regression analysis indicated that overweight participants are more frequent complementary and alternative medicine users compared to obese. Relatives and friends were the main sources of information about complementary and alternative medicine. Only 31.9% of women believed that complementary and alternative medicine modalities were safe; around half believed they were not safe during pregnancy (52.5%) and lactation (48.0%). Only 49.7% were aware of side-effects and 41.5% of drug interactions. Conclusion: This study revealed that complementary and alternative medicine is often used for weight management. Awareness of the safe use of complementary and alternative medicine with other medications and during pregnancy and lactation should be addressed.
Keywords : alternative medicine, dietary supplements, weight management, women, Jordan
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