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Glucagon AND Polyphenol

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https://www.readbyqxmd.com/read/27829582/postprandial-hyperlipidemia-and-remnant-lipoproteins
#1
Daisaku Masuda, Shizuya Yamashita
Fasting hypertriglyceridemia is positively associated with the morbidity of coronary heart disease (CHD), and postprandial (non-fasting) hypertriglyceridemia is also correlated with the risk status for CHD, which is related to the increase in chylomicron (CM) remnant lipoproteins produced from the intestine. CM remnant particles, as well as oxidized low density lipoprotein (LDL) or very low density lipoprotein (VLDL) remnants, are highly atherogenic and act by enhancing systemic inflammation, platelet activation, coagulation, thrombus formation, and macrophage foam cell formation...
November 8, 2016: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/27782737/resveratrol-alleviates-ethanol-induced-hormonal-and-metabolic-disturbances-in-the-rat
#2
K Szkudelska, M Deniziak, P Roś, K Gwóźdź, T Szkudelski
Resveratrol is a polyphenol found in different plant species and having numerous health-promoting properties in animals and humans. However, its protective action against deleterious effects of ethanol is poorly elucidated. In the present study, the influence of resveratrol (10 mg/kg/day) on some hormones and metabolic parameters was determined in rats ingesting 10% ethanol solution for two weeks. Blood levels of insulin, glucagon and adiponectin were affected by ethanol, however, resveratrol partially ameliorated these changes...
October 26, 2016: Physiological Research
https://www.readbyqxmd.com/read/27362825/fractionation-of-plant-bioactives-from-black-carrots-daucus-carota-subspecies-sativus-varietas-atrorubens-alef-by-adsorptive-membrane-chromatography-and-analysis-of-their-potential-anti-diabetic-activity
#3
Tuba Esatbeyoglu, Miriam Rodríguez-Werner, Anke Schlösser, Martin Liehr, Ignacio Ipharraguerre, Peter Winterhalter, Gerald Rimbach
Black and purple carrots have attracted interest as colored extracts for coloring food due to their high content of anthocyanins. This study aimed to investigate the polyphenol composition of black carrots. Particularly, the identification and quantification of phenolic compounds of the variety Deep Purple carrot (DPC), which presents a very dark color, was performed by HPLC-PDA and HPLC-ESI-MS(n) analyses. The separation of polyphenols from a DPC XAD-7 extract into an anthocyanin fraction (AF) and co-pigment fraction (CF; primarily phenolic acids) was carried out by membrane chromatography...
July 27, 2016: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27189193/grape-powder-attenuates-the-negative-effects-of-glp-1-receptor-antagonism-by-exendin-3-9-39-in-a-normoglycemic-mouse-model
#4
T C Haufe, A D Gilley, K M Goodrich, C M Ryan, A T Smithson, M W Hulver, D Liu, A P Neilson
Prediabetes is a condition affecting 35% of US adults and about 50% of US adults age 65+. Foods rich in polyphenols, including flavanols and other flavonoids, have been studied for their putative beneficial effects on many different health conditions including type 2 diabetes mellitus and prediabetes. Studies have shown that some flavanols increase glucagon-like peptide 1 (GLP-1) secretion. GLP-1 is a feeding hormone that increases insulin secretion after carbohydrate consumption, and increased GLP-1 secretion may be responsible for some of the beneficial effects on glycemic control after flavanol consumption...
June 15, 2016: Food & Function
https://www.readbyqxmd.com/read/27013789/chemometrics-optimized-extraction-procedures-phytosynergistic-blending-and-in-vitro-screening-of-natural-enzyme-inhibitors-amongst-leaves-of-tulsi-banyan-and-jamun
#5
Baishakhi De, Koushik Bhandari, Rajeev K Singla, Prakash Katakam, Tanmoy Samanta, Dilip Kumar Kushwaha, Rohit Gundamaraju, Analava Mitra
BACKGROUND: Tulsi, Banyan, and Jamun are popular Indian medicinal plants with notable hypoglycemic potentials. Now the work reports chemo-profiling of the three species with in-vitro screening approach for natural enzyme inhibitors (NEIs) against enzymes pathogenic for type 2 diabetes. Further along with the chemometrics optimized extraction process technology, phyto-synergistic studies of the composite polyherbal blends have also been reported. OBJECTIVE: Chemometrically optimized extraction procedures, ratios of polyherbal composites to achieve phyto-synergistic actions, and in-vitro screening of NEIs amongst leaves of Tulsi, Banyan, and Jamun...
October 2015: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/26542398/novel-tactics-for-neuroprotection-in-parkinson-s-disease-role-of-antibiotics-polyphenols-and-neuropeptides
#6
Dora Reglodi, Justine Renaud, Andrea Tamas, Yousef Tizabi, Sergio B Socías, Elaine Del-Bel, Rita Raisman-Vozari
Parkinson's disease is a progressive neurodegenerative disorder characterized by the degeneration of midbrain nigral dopaminergic neurons. Although its etiology remains unknown, the pathological role of several factors has been highlighted, namely oxidative stress, neuroinflammation, protein misfolding, and mitochondrial dysfunction, in addition to genetic predispositions. The current therapy is mainly symptomatic with l-DOPA aiming to replace dopamine. Novel therapeutic approaches are being investigated with the intention of influencing pathways leading to neuronal death and dysfunction...
November 2, 2015: Progress in Neurobiology
https://www.readbyqxmd.com/read/26514092/hibiscus-sabdariffa-polyphenols-prevent-palmitate-induced-renal-epithelial-mesenchymal-transition-by-alleviating-dipeptidyl-peptidase-4-mediated-insulin-resistance
#7
Chien-Ning Huang, Chau-Jong Wang, Yi-Sun Yang, Chih-Li Lin, Chiung-Huei Peng
Diabetic nephropathy has a significant socioeconomic impact, but its mechanism is unclear and needs to be examined. Hibiscus sabdariffa polyphenols (HPE) inhibited high glucose-induced angiotensin II receptor-1 (AT-1), thus attenuating renal epithelial mesenchymal transition (EMT). Recently, we reported HPE inhibited dipeptidyl-peptidase-4 (DPP-4, the enzyme degrades type 1 glucagon-like peptide (GLP-1)), which mediated insulin resistance signals leading to EMT. Since free fatty acids can realistically bring about insulin resistance, using the palmitate-stimulated cell model in contrast with type 2 diabetic rats, in this study we examined if insulin resistance causes renal EMT, and the preventive effect of HPE...
January 2016: Food & Function
https://www.readbyqxmd.com/read/26400429/anti-inflammatory-diets
#8
Barry Sears
Chronic disease is driven by inflammation. This article will provide an overview on how the balance of macronutrients and omega-6 and omega-3 fatty acids in the diet can alter the expression of inflammatory genes. In particular, how the balance of the protein to glycemic load of a meal can alter the generation of insulin and glucagon and the how the balance of omega-6 and omega-3 fatty acids can effect eicosanoid formation. Clinical results on the reduction of inflammation following anti-inflammatory diets are discussed as well as the molecular targets of anti-inflammatory nutrition...
2015: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/26388676/-epigallocatechin-3-gallate-induces-secretion-of-anorexigenic-gut-hormones
#9
Won-Young Song, Yoshiko Aihara, Takashi Hashimoto, Kazuki Kanazawa, Masashi Mizuno
The anorexigenic gut hormones, cholecystokinin (CCK), glucagon-like peptide (GLP)-1 and peptide tyrosine-tyrosine (PYY), are released in response to food intake from the intestines. Dietary nutrients have been shown to stimulate these hormones. Some non-nutrients such as polyphenols show anorexigenic effects on humans. In the present study, we examined whether dietary polyphenols can stimulate secretion of these gut hormones. Caco-2 cells expressed mRNA of the gut hormones, CCK, PC1 (prohormone convertase 1), GCG (glucagon) and PYY...
September 2015: Journal of Clinical Biochemistry and Nutrition
https://www.readbyqxmd.com/read/26337017/coffee-polyphenol-consumption-improves-postprandial-hyperglycemia-associated-with-impaired-vascular-endothelial-function-in-healthy-male-adults
#10
RANDOMIZED CONTROLLED TRIAL
Hiroko Jokura, Isamu Watanabe, Mika Umeda, Tadashi Hase, Akira Shimotoyodome
Epidemiological studies indicate that habitual coffee consumption lowers the risk of diabetes and cardiovascular diseases. Postprandial hyperglycemia is a direct and independent risk factor for cardiovascular diseases. We previously demonstrated that coffee polyphenol ingestion increased secretion of Glucagon-like peptide 1 (GLP-1), which has been shown to exhibit anti-diabetic and cardiovascular effects. We hypothesized coffee polyphenol consumption may improve postprandial hyperglycemia and vascular endothelial function by increasing GLP-1 release and/or reducing oxidative stress...
October 2015: Nutrition Research
https://www.readbyqxmd.com/read/26097706/ingestion-of-coffee-polyphenols-increases-postprandial-release-of-the-active-glucagon-like-peptide-1-glp-1-7-36-amide-in-c57bl-6j-mice
#11
Yoshie Fujii, Noriko Osaki, Tadashi Hase, Akira Shimotoyodome
The widespread prevalence of diabetes, caused by impaired insulin secretion and insulin resistance, is now a worldwide health problem. Glucagon-like peptide 1 (GLP-1) is a major intestinal hormone that stimulates glucose-induced insulin secretion from β cells. Prolonged activation of the GLP-1 signal has been shown to attenuate diabetes in animals and human subjects. Therefore, GLP-1 secretagogues are attractive targets for the treatment of diabetes. Recent epidemiological studies have reported that an increase in daily coffee consumption lowers diabetes risk...
2015: Journal of Nutritional Science
https://www.readbyqxmd.com/read/25906754/polyphenol-rich-diets-improve-glucose-metabolism-in-people-at-high-cardiometabolic-risk-a-controlled-randomised-intervention-trial
#12
RANDOMIZED CONTROLLED TRIAL
Lutgarda Bozzetto, Giovanni Annuzzi, Giovanni Pacini, Giuseppina Costabile, Claudia Vetrani, Marilena Vitale, Ettore Griffo, Angela Giacco, Claudia De Natale, Sara Cocozza, Giuseppe Della Pepa, Andrea Tura, Gabriele Riccardi, Angela A Rivellese
AIM/HYPOTHESIS: Dietary polyphenols and long chain n-3 polyunsaturated fatty acids (LCn3) are associated with lower cardiovascular risk. This may relate to their influence on glucose metabolism and diabetes risk. We evaluated the effects of diets naturally rich in polyphenols and/or LCn3 of marine origin on glucose metabolism in people at high cardiometabolic risk. METHODS: According to a 2 × 2 factorial design, individuals with high waist circumference and at least one more component of the metabolic syndrome were recruited at the obesity outpatient clinic...
July 2015: Diabetologia
https://www.readbyqxmd.com/read/25248062/resveratrol-ameliorates-mitochondrial-dysfunction-but-increases-the-risk-of-hypoglycemia-following-hemorrhagic-shock
#13
Hao Wang, Yuxia Guan, Anne Lykkegaard Widlund, Lance B Becker, Joseph A Baur, Patrick M Reilly, Carrie A Sims
BACKGROUND: Hemorrhagic shock (HS) may contribute to organ failure, by profoundly altering mitochondrial function. Resveratrol (RSV), a naturally occurring polyphenol, has been shown to promote mitochondrial function and regulate glucose homeostasis in diabetes. We hypothesized that RSV during resuscitation would ameliorate HS-induced mitochondrial dysfunction and improve hyperglycemia following acute blood loss. METHODS: With the use a decompensated HS model, male Long-Evans rats (n = 6 per group) were resuscitated with lactated Ringer's solution with or without RSV (30 mg/kg) and were killed before hemorrhage (sham), at severe shock, following resuscitation, and 18 hours after resuscitation...
December 2014: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/25193793/test-meals-rich-in-marine-long-chain-n-3-polyunsaturated-fatty-acids-increase-postprandial-chylomicron-response
#14
RANDOMIZED CONTROLLED TRIAL
E Griffo, L Di Marino, L Patti, L Bozzetto, G Annuzzi, P Cipriano, A Mangione, G Della Pepa, S Cocozza, G Riccardi, A A Rivellese
Postprandial lipid abnormalities are considered an independent cardiovascular risk factor. Hence, it is important to find nutritional strategies that are able to positively influence these abnormalities. Since the effect of n-3 polyunsaturated fatty acids (PUFA) and polyphenols on postprandial lipids in humans is still under debate, we evaluated the acute response of triglyceride-rich lipoproteins to test meals that are naturally rich in polyphenols and/or marine long-chain (LC) n-3 PUFAs. We hypothesized that LC n-3 PUFA would have a different effect on chylomicron and very low density lipoproteins when compared with polyphenols or their combination...
August 2014: Nutrition Research
https://www.readbyqxmd.com/read/25191571/a-single-supplement-of-a-standardised-bilberry-vaccinium-myrtillus-l-extract-36-wet-weight-anthocyanins-modifies-glycaemic-response-in-individuals-with-type-2-diabetes-controlled-by-diet-and-lifestyle
#15
Nigel Hoggard, Morven Cruickshank, Kim-Marie Moar, Charles Bestwick, Jens J Holst, Wendy Russell, Graham Horgan
Dietary strategies for alleviating health complications associated with type 2 diabetes (T2D) are being pursued as alternatives to pharmaceutical interventions. Berries such as bilberries (Vaccinium myrtillus L.) that are rich in polyphenols may influence carbohydrate digestion and absorption and thus postprandial glycaemia. In addition, berries have been reported to alter incretins as well as to have antioxidant and anti-inflammatory properties that may also affect postprandial glycaemia. The present study investigated the acute effect of a standardised bilberry extract on glucose metabolism in T2D...
2013: Journal of Nutritional Science
https://www.readbyqxmd.com/read/25066255/dietary-sweet-potato-ipomoea-batatas-l-leaf-extract-attenuates-hyperglycaemia-by-enhancing-the-secretion-of-glucagon-like-peptide-1-glp-1
#16
Rika Nagamine, Shiori Ueno, Masahito Tsubata, Kazuya Yamaguchi, Kinya Takagaki, Tohru Hira, Hiroshi Hara, Takanori Tsuda
'Suioh', a sweet potato (Ipomoea batatas L.) cultivar developed in Japan, has edible leaves and stems. The sweet potato leaves contain polyphenols such as caffeoylquinic acid (CQA) derivatives. It has multiple biological functions and may help to regulate the blood glucose concentration. In this study, we first examined whether sweet potato leaf extract powder (SP) attenuated hyperglycaemia in type 2 diabetic mice. Administration of dietary SP for 5 weeks significantly lowered glycaemia in type 2 diabetic mice...
September 2014: Food & Function
https://www.readbyqxmd.com/read/24611864/enzogenol-improves-diabetes-related-metabolic-change-in-c57bl-ksj-db-db-mice-a-model-of-type-2-diabetes-mellitus
#17
Chae-Young Bang, Se-Young Choung
OBJECTIVES: Dietary use of pine bark extract has been associated with reduced risk of inflammation and diabetes. In this study, we investigated the antidiabetic effects of enzogenol, proanthocyanidins-rich bioflavonoid extract derived from the pine bark of New Zealand Pinus radiata trees, using C57BL/KsJ-db/db mice. METHODS: After 1-week acclimation period, the db/db mice were divided into vehicle-treated, Enzogenol-treated (12.5, 25 and 50 mg/kg; EZ) and positive control (tea polyphenol 50 mg/kg; TPP) groups...
June 2014: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/24561154/dietary-cocoa-reduces-metabolic-endotoxemia-and-adipose-tissue-inflammation-in-high-fat-fed-mice
#18
Yeyi Gu, Shan Yu, Jong Yung Park, Kevin Harvatine, Joshua D Lambert
In diet-induced obesity, adipose tissue (AT) is in a chronic state of inflammation predisposing the development of metabolic syndrome. Cocoa (Theobroma cacao) is a polyphenol-rich food with putative anti-inflammatory activities. Here, we examined the impact and underlying mechanisms of action of cocoa on AT inflammation in high fat-fed mice. In the present study, male C57BL/6 J mice were fed a high fat diet (HF), a HF diet with 8% (w/w) unsweetened cocoa powder (HFC), or a low-fat diet (LF) for 18 weeks. Cocoa supplementation decreased AT mRNA levels of tumor necrosis factor-α, interleukin-6, inducible nitric oxide synthase, and EGF-like module-containing mucin-like hormone receptor-like 1 by 40-60% compared to HF group, and this was accompanied by decreased nuclear protein levels of nuclear factor-κB...
April 2014: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/23886976/gut-microbiota-controls-adipose-tissue-expansion-gut-barrier-and-glucose-metabolism-novel-insights-into-molecular-targets-and-interventions-using-prebiotics
#19
REVIEW
L Geurts, A M Neyrinck, N M Delzenne, C Knauf, P D Cani
Crosstalk between organs is crucial for controlling numerous homeostatic systems (e.g. energy balance, glucose metabolism and immunity). Several pathological conditions, such as obesity and type 2 diabetes, are characterised by a loss of or excessive inter-organ communication that contributes to the development of disease. Recently, we and others have identified several mechanisms linking the gut microbiota with the development of obesity and associated disorders (e.g. insulin resistance, type 2 diabetes, hepatic steatosis)...
March 2014: Beneficial Microbes
https://www.readbyqxmd.com/read/23663119/thirty-days-of-resveratrol-supplementation-does-not-affect-postprandial-incretin-hormone-responses-but-suppresses-postprandial-glucagon-in-obese-subjects
#20
RANDOMIZED CONTROLLED TRIAL
F K Knop, E Konings, S Timmers, P Schrauwen, J J Holst, E E Blaak
AIMS: Resveratrol, a natural polyphenolic compound produced by various plants (e.g. red grapes) and found in red wine, has glucose-lowering effects in humans and rodent models of obesity and/or diabetes. The mechanisms behind these effects have been suggested to include resveratrol-induced secretion of the gut incretin hormone glucagon-like peptide-1. We investigated postprandial incretin hormone and glucagon responses in obese human subjects before and after 30 days of resveratrol supplementation...
October 2013: Diabetic Medicine: a Journal of the British Diabetic Association
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