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Diabetes polyphenols

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https://www.readbyqxmd.com/read/29345498/effects-of-blueberry-and-cranberry-consumption-on-type-2-diabetes-glycemic-control-a-systematic-review
#1
Dmup Rocha, Aps Caldas, Bp da Silva, Hh Hermsdorff, Rcg Alfenas
The metabolic effects of cranberry and blueberry consumption on glycemic control have been evaluated in vitro and in animal models as well as in human studies, although findings have not been systematically reviewed yet. Therefore, a systematic review was carried out of relevant randomized clinical trials (RCTs) in order to assess the effect of berries (blueberry and cranberry) consumption on type 2 diabetes (T2DM) glycemic control. Some evidences were also discussed on the anti-diabetic mechanisms exerted by berries polyphenols...
January 18, 2018: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/29342984/amaranthus-caudatus-stimulates-insulin-secretion-in-goto-kakizaki-rats-a-model-of-diabetes-mellitus-type-2
#2
Silvia Zambrana, Lena C E Lundqvist, Virginia Veliz, Sergiu-Bogdan Catrina, Eduardo Gonzales, Claes-Göran Östenson
Diabetes Mellitus Type 2 prevalence is increasing worldwide; thus efforts to develop novel therapeutic strategies are required. Amaranthus caudatus (AC) is a pseudo-cereal with reported anti-diabetic effects that is usually consumed in food preparations in Bolivia. This study evaluated the anti-diabetic nutraceutical property of an AC hydroethanolic extract that contains mainly sugars and traces of polyphenols and amino acids (as shown by nalysis with liquid chromatography-mass spectrometry (LC-MS) and nuclear magnetic resonance (NMR)), in type 2 diabetic Goto-Kakizaki (GK) rats and healthy Wistar (W) rats...
January 15, 2018: Nutrients
https://www.readbyqxmd.com/read/29341416/resveratrol-influences-pancreatic-islets-by-opposing-effects-on-electrical-activity-and-insulin-release
#3
Simone Brouwer, Theresa Hoffmeister, Anne Gresch, Lisa Schönhoff, Martina Düfer
SCOPE: Resveratrol is suggested to improve glycemic control by activation of sirtuin 1 (SIRT1) and has already been tested clinically. Our investigation characterizes the targets of resveratrol in pancreatic beta cells and their contribution to short- and long-term effects on insulin secretion. METHODS AND RESULTS: Islets or beta cells were isolated from C57Bl/6N mice. Electrophysiology was performed with microelectrode arrays and patch-clamp technique, insulin secretion and content were determined by radioimmunoassay, cAMP was measured by enzyme-linked immunosorbent assay and cytosolic Ca2+ concentration by fluorescence methods...
January 17, 2018: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29336891/cupua%C3%A3-u-extract-reduces-nitrosative-stress-and-modulates-inflammatory-mediators-in-the-kidneys-of-experimental-diabetes
#4
Giovana R Punaro, Deyse Y Lima, Adelson M Rodrigues, Samuel Pugliero, Margaret G Mouro, Marcelo M Rogero, Elisa M S Higa
BACKGROUND & AIMS: We have previously reported an increased nitrosative stress in the kidneys of diabetic animals, which was reduced by an antioxidant probiotic. The present study evaluated whether the extract of cupuaçu (EC), an antioxidant compound rich in polyphenols and theograndins, when administered at a dose that can be reasonably obtained through daily consumption, could delay the onset of diabetic complications in the kidney. METHODS: Mouse immortalized mesangial cells (MiMC) were placed in medium normal glucose (NG) or high glucose (HG), with or without EC (500, 100, 50 or 10 μg/mL) during 24, 48 or 72 h for analysis of viability, proliferation, nitric oxide (NO) levels and reactive oxygen species or nitrogen (ROS/RNS)...
December 26, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29336184/alpha-amylase-%C3%AE-glucosidase-and-lipase-inhibiting-activities-of-polyphenol-rich-extracts-from-six-common-bean-cultivars-of-southern-italy-before-and-after-cooking
#5
Maria Neve Ombra, Antonio d'Acierno, Filomena Nazzaro, Patrizia Spigno, Riccardo Riccardi, Massimo Zaccardelli, Catello Pane, Raffaele Coppola, Florinda Fratianni
Common beans (Phaseolus vulgaris) are a good source of nutrients and phenolic compounds with versatile health benefits. Polyphenol-rich extracts of six ecotypes of P. vulgaris were analysed to determine their phenolic profiles and assayed in vitro for inhibitory effects on digestive enzymes relevant to carbohydrates and lipids metabolism. The extracts inhibited enzyme activities in a dose-dependent manner. IC 50 values ranged from 69 ± 1.9 to 126 ± 3.2 μg/mL and from 107.01 ± 4.5 to 184.20 ± 5...
January 16, 2018: International Journal of Food Sciences and Nutrition
https://www.readbyqxmd.com/read/29316644/gelidium-elegans-extract-ameliorates-type-2-diabetes-via-regulation-of-mapk-and-pi3k-akt-signaling
#6
Jia Choi, Kui-Jin Kim, Eun-Jeong Koh, Boo-Yong Lee
Gelidium elegans, a red alga native to the Asia Pacific region, contains biologically active polyphenols. We conducted a molecular biological study of the anti-diabetic effect of Gelidium elegans extract (GEE) in C57BL/KsJ-db/db mice. Mice that had been administered GEE had significantly lower body mass, water consumption, and fasting blood glucose than db/db controls. Moreover, hemoglobin A1c (HbA1c), an indicator of the glycemic status of people with diabetes, was significantly lower in mice that had been administered GEE...
January 6, 2018: Nutrients
https://www.readbyqxmd.com/read/29313749/the-potential-effects-of-caffeinated-beverages-on-insulin-sensitivity
#7
E Paul Cherniack, Natalie Buslach, Heather F Lee
Caffeinated beverages, most commonly tea and coffee, may have important effects on insulin regulation that may give their consumption an important role among nutritional factors in the development of diseases of glucose and insulin metabolism, such as diabetes and atherosclerotic vascular diseases. These beverages include compounds that may have contradictory effects on insulin and glucose: Caffeine impairs insulin sensitivity, but polyphenolic molecules within tea, coffee, and cocoa augment the effects of insulin...
January 9, 2018: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/29312822/effect-of-dark-sweet-cherry-powder-consumption-on-the-gut-microbiota-short-chain-fatty-acids-and-biomarkers-of-gut-health-in-obese-db-db-mice
#8
Jose F Garcia-Mazcorro, Nara N Lage, Susanne Mertens-Talcott, Stephen Talcott, Boon Chew, Scot E Dowd, Jorge R Kawas, Giuliana D Noratto
Cherries are fruits containing fiber and bioactive compounds (e.g., polyphenolics) with the potential of helping patients with diabetes and weight disorders, a phenomenon likely related to changes in the complex host-microbiota milieu. The objective of this study was to investigate the effect of cherry supplementation on the gut bacterial composition, concentrations of caecal short-chain fatty acids (SCFAs) and biomarkers of gut health using an in vivo model of obesity. Obese diabetic (db/db) mice received a supplemented diet with 10% cherry powder (supplemented mice, n = 12) for 12 weeks; obese (n = 10) and lean (n = 10) mice served as controls and received a standard diet without cherry...
2018: PeerJ
https://www.readbyqxmd.com/read/29299989/curcuminoids-plus-piperine-modulate-adipokines-in-type-2-diabetes-mellitus
#9
Amirhossein Sahebkar, Yunes Panahi, Nahid Khalili, Ebrahim Sahebi, Soha Namazi, Stephen L Atkin, Muhammed Majeed
OBJECTIVE: Curcumin is a naturally occurring polyphenol derived from tumeric that has been reported to have anti-inflammatory properties with effects on adipokine and ghrelin levels. Adiponectin, leptin and ghrelin modulate energy homeostasis but each have modulatory effects on inflammatory cytokines and the immune system. Therefore this analysis was performed to investigate the effect of curcumin on adiponectin, leptin and ghrelin. METHODS: A double blind randomised control trial comparing curcumin 1000mg with 10mg of piperine daily to placebo over a 12 week period...
January 3, 2018: Current Clinical Pharmacology
https://www.readbyqxmd.com/read/29281341/functional-foods-and-nutraceuticals-as-dietary-intervention-in-chronic-diseases-novel-perspectives-for-health-promotion-and-disease-prevention
#10
Stephen Adeniyi Adefegha
Functional foods describe the importance of foods in promoting health and preventing diseases aside their primary role of providing the body with the required amount of essential nutrients such as proteins, carbohydrates, vitamins, fats, and oils needed for its healthy survival. This review explains the interaction of functional food bioactive compounds including polyphenols (phenolic acids [hydroxybenzoic acids and hydroxycinnamic acids], flavonoids [flavonols, flavones, flavanols, flavanones, isoflavones, proanthocyanidins], stilbenes, and lignans), terpenoids, carotenoids, alkaloids, omega-3 and polyunsaturated fatty acids, among others with critical enzymes (α- amylase, α- glucosidase, angiotensin-I converting enzyme [ACE], acetylcholinesterase [AChE], and arginase) linked to some degenerative diseases (type-2 diabetes, cardiovascular diseases [hypertension], neurodegenerative diseases [Alzheimer's disease] and erectile dysfunction)...
December 27, 2017: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/29258915/cinnamon-a-promising-prospect-towards-alzheimer-s-disease
#11
REVIEW
Saeideh Momtaz, Shokoufeh Hassani, Fazlullah Khan, Mojtaba Ziaee, Mohammad Abdollahi
Over the last decades, an exponential increase of efforts concerning the treatment of Alzheimer's disease (AD) has been practiced. Phytochemicals preparations have a millenary background to combat various pathological conditions. Various cinnamon species and their biologically active ingredients have renewed the interest towards the treatment of patients with mild-to-moderate AD through the inhibition of tau protein aggregation and prevention of the formation and accumulation of amyloid-β peptides into the neurotoxic oligomeric inclusions, both of which are considered to be the AD trademarks...
December 16, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29248832/polyphenol-rich-ethyl-acetate-fraction-isolated-from-molineria-latifolia-ameliorates-insulin-resistance-in-experimental-diabetic-rats-via-irs1-akt-activation
#12
Der Jiun Ooi, Hadiza Altine Adamu, Mustapha Umar Imam, Hairuszah Ithnin, Maznah Ismail
This study aimed to evaluate the effect of ethyl acetate fraction (EAF) isolated from Molineria latifolia rhizome as dietary interventions for type 2 diabetes mellitus (T2DM) and its underlying molecular mechanisms in vivo. Experimental rats were induced by high fat diet feeding coupled with combined exposure to streptozotocin and nicotinamide. Treatment with EAF improved glucose tolerance and lipid profiles, but the insulin secretion was unaltered. Gene expression analyses on insulin/adipocytokine signalling-related genes demonstrated tissue-specific transcriptional responses...
December 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29243419/-advances-of-mechanism-research-on-procyanidin-in-prevention-and-treatment-of-type-2-diabetes-mellitus
#13
REVIEW
Xue-Ping Wang, Yi-Ming Li, Zhao Wang, Qi Jia, Kai-Xian Chen
Diabetes mellitus, a chronic disease, is characterized by high blood glucose that could induce various complications. Procyanidin, a kind of polyphenol compounds existing in many plants, have shown to be effective in preventing and treating type 2 diabetes mellitus as they may lower blood glucose, moderate insulin resistance and protect islet β cells. This review focused on the research advances on the preventive and therapeutic application of procyanidin in promoting glucose absorption, protecting islet β cells, modulating intestinal microbiota and regulating diabetic complications of type 2 diabetes mellitus, which should provide useful reference for subsequent studies...
October 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29242624/plant-derived-compounds-strigolactone-gr24-and-pinosylvin-activate-sirt1-and-enhance-glucose-uptake-in-rat-skeletal-muscle-cells
#14
Shalem Modi, Nagendra Yaluri, Tarja Kokkola, Markku Laakso
Insulin resistance is a characteristic finding in hyperglycaemia and type 2 diabetes. SIRT1 is a NAD+ dependent deacetylase that plays a central role in glucose homeostasis and energy metabolism. SIRT1 activators, including plant polyphenols such as resveratrol, improve insulin sensitivity in skeletal muscle tissue. We hypothesised that the novel plant-derived compounds, strigolactone and pinosylvin, beneficially enhance SIRT1 function, insulin signalling, glucose uptake, and mitochondrial biogenesis in skeletal muscle cells...
December 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29238476/anti-hyperglycemic-and-antioxidant-potential-of-croton-bonplandianus-bail-fractions-in-correlation-with-polyphenol-content
#15
Uma Dharshini Karuppiah Vijayamuthuramalingam, Rajeswari Rajaram, Kalaivani Madhavaram Kuppusamy, Bhavana Jonnalagadda, Sumathy Arokiasamy
Objectives: Diabetes mellitus, a carbohydrate metabolic disorder, occurs due to absolute or relative deficiency of insulin. Current treatment strategies involve either preventing or delaying the intestinal absorption of glucose to lower the levels of postprandial hyperglycemia (PPHG). Herbal remedies have been since ancient times for treating diabetes mellitus. Therefore, identifying novel phytocompounds with α-amylase and α-glucosidase inhibitory activity that would reduce the glucose absorption as well as the rise in postprandial blood glucose level is vital...
December 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29236863/evaluation-of-phenolic-compounds-and-lipid-lowering-effect-of-morus-nigra-leaves-extract
#16
Ana Lúcia B Zeni, Tatianne D Moreira, Ana Paula Dalmagro, Anderson Camargo, Larissa A Bini, Edésio L Simionatto, Dilamara R Scharf
Morus nigra L. (Moraceae) is a tree known as black mulberry and the leaves are used in folk medicine in the treatment of diabetes, high cholesterol and menopause symptoms. The aim of this study was to evaluate the M. nigra leaves phytochemical profile in different extractions and the hypolipidemic effect of the infusion comparing to the fenofibrate. Morus nigra infusion (MN) showed higher amounts of phenolics and flavonoids (83.85 mg/g and 79.96 µg/g, respectively), as well as antioxidant activity (83.85%) than decoction or hydromethanolic extracts...
December 7, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29227535/antidiabetic-and-lipid-lowering-effects-of-the-polyphenol-extracts-from-the-leaves-of-clausena-lansium-lour-skeels-on-streptozotocin-induced-type-2-diabetic-rats
#17
Fansheng Kong, Zhipeng Su, Xiaoming Guo, Feng Zeng, Yongguang Bi
Clausena lansium (Lour.) Skeels (Wampee) is widely grown in China and considered as a healthy fruit. Its leaves are also considered as traditional herbs. This study analyzed polyphenol compounds in polyphenol extracts of the leaves C. lansium (lour.) Skeels (PEL) and investigated the protective effect of PEL against hyperglycemia and hyperlipidemia in T2DM rats. The result showed that PEL is composed mainly of gallic acid, chlorogenic acid, coffee acid, ferulic acid, and rutin. PEL could obviously relieve some symptoms of T2DM rats, including emaciation, hyperhidrosis, polyphagia, diuresis, liver swelling, kidney, and pancreas hypertrophy, as well as reduce fasting blood glucose...
December 11, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/29225112/fisetin-a-bioactive-phytochemical-with-potential-for-cancer-prevention-and-pharmacotherapy
#18
REVIEW
Dharambir Kashyap, Ajay Sharma, Katrin Sak, Hardeep Singh Tuli, Harpal Singh Buttar, Anupam Bishayee
A wide variety of chronic diseases, such as neurodegenerative and cardiovascular disorders, diabetes mellitus, osteoarthtitis, obesity and various cancers, are now being treated with cost effective phytomedicines. Since synthetic medicines are very expensive, concerted efforts are being made in developing and poor countries to discover cost effective medicines for the treatment of non-communicable diseases (NCDs). Understanding the underlying mechanisms of bioactive medicines from natural sources would not only open incipient avenues for the scientific community and pharmaceutical industry to discover new drug molecules for the therapy of NCDs, but also help to garner knowledge for alternative therapeutic approaches for the management of chronic diseases...
December 7, 2017: Life Sciences
https://www.readbyqxmd.com/read/29214374/serum-antioxidant-parameters-are-significantly-increased-in-patients-with-type-2-diabetes-mellitus-after-consumption-of-chinese-propolis-a-randomized-controlled-trial-based-on-fasting-serum-glucose-level
#19
Weina Gao, Lingling Pu, Jingyu Wei, Zhanxin Yao, Yawen Wang, Tala Shi, Liting Zhao, Changya Jiao, Changjiang Guo
INTRODUCTION: Propolis is a natural product with many biological activities. The present study was designed to evaluate the effects of Chinese propolis on glucose metabolism, antioxidant function, and inflammatory cytokines in patients with type 2 diabetes mellitus (T2DM). METHODS: In the 18-week study, recruited T2DM patients were randomly divided into a Chinese propolis group (900 mg/day) (n = 31) and a control group (n = 30) according to fasting serum glucose levels at baseline...
December 6, 2017: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
https://www.readbyqxmd.com/read/29210129/effect-of-resveratrol-and-pterostilbene-on-aging-and-longevity
#20
REVIEW
Yi-Rong Li, Shiming Li, Chi-Chien Lin
Over the past years, several studies have found that foods rich in polyphenols protect against age-related disease, such as atherosclerosis, cardiovascular disease, cancer, arthritis, cataracts, osteoporosis, type 2 diabetes (T2D), hypertension and Alzheimer's disease. Resveratrol and pterostilbene, the polyphenol found in grape and blueberries, have beneficial effects as anti-aging compounds through modulating the hallmarks of aging, including oxidative damage, inflammation, telomere attrition and cell senescence...
December 6, 2017: BioFactors
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