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Gut microbiota and diabetes

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https://www.readbyqxmd.com/read/28328990/gut-microbiome-analysis-of-type-2-diabetic-patients-from-the-chinese-minority-ethnic-groups-the-uygurs-and-kazaks
#1
Ye Wang, Xin Luo, Xinmin Mao, Yicun Tao, Xinjian Ran, Haixia Zhao, Jianhui Xiong, Linlin Li
The gut microbiome may have an important influence on the development of diabetes mellitus type 2 (DM2). To better understand the DM2 pandemic in ethnic minority groups in China, we investigated and compared the composition and richness of the gut microbiota of healthy, normal glucose tolerant (NGT) individuals and DM2 patients from two ethnic minority groups in Xinjiang, northwest China, the Uygurs and Kazaks. The conserved V6 region of the 16S rRNA gene was amplified by PCR from the isolated DNA. The amplified DNA was sequenced and analyzed...
2017: PloS One
https://www.readbyqxmd.com/read/28324102/duodenal-mucosa-of-patients-with-type-1-diabetes-shows-distinctive-inflammatory-profile-and-microbiota
#2
Silvia Pellegrini, Valeria Sordi, Andrea Mario Bolla, Diego Saita, Roberto Ferrarese, Filippo Canducci, Massimo Clementi, Francesca Invernizzi, Alberto Mariani, Riccardo Bonfanti, Graziano Barera, Pier Alberto Testoni, Claudio Doglioni, Emanuele Bosi, Lorenzo Piemonti
Context: Increasing evidences suggest a correlation between gut and type 1 diabetes (T1D). Objective: The objective of this study is to evaluate the gut inflammatory profile and microbiota in patients with T1D, compared to healthy controls (CTRL) and patients with celiac disease (CD) as gut inflammatory disease controls. Design/Setting/Participants: The inflammatory status and microbiome composition were evaluated in biopsies of the duodenal mucosa of patients with T1D (n=19), CD (n=19) and CTRL (n=16), recruited at San Raffaele Scientific Institute, in Milan, Italy, between 2009 and 2015...
January 19, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28317481/gut-microbiota-a-new-marker-of-cardiovascular-disease
#3
Antonio Garcia-Rios, Jose David Torres-Peña, Francisco Perez-Jimenez, Pablo Perez-Martinez
Cardiovascular disease (CVD) continues to be the major cause of death in the developed countries. Moreover, the cardiovascular risk factors leading towards the development of CVD, mainly type 2 diabetes and obesity, are on the rise. The current preventive and therapeutic management, centred on the control of traditional risk factors, is clearly not enough to stop this pandemic. Therefore, the search for new biomarkers in CVD is a priority in most clinical research programs. Currently, interest in gut microbiota has peaked due to its association with cardiovascular and non-cardiovascular diseases...
March 17, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28316052/the-gut-microbiome-energy-homeostasis-and-implications-for-hypertension
#4
REVIEW
Ruth A Riedl, Samantha N Atkinson, Colin M L Burnett, Justin L Grobe, John R Kirby
PURPOSE OF REVIEW: The influence of gut bacteria upon host physiology is increasingly recognized, but mechanistic links are lacking. Diseases of energetic imbalance such as obesity and diabetes represent major risk factors for cardiovascular diseases such as hypertension. Thus, here, we review current mechanistic contributions of the gut microbiota to host energetics. RECENT FINDINGS: Gut bacteria generate a multitude of small molecules which can signal to host tissues within and beyond the gastrointestinal tract to influence host physiology, and gut bacteria can also influence host digestive efficiency by altering the bioavailability of polysaccharides, yet the quantitative energetic effects of these processes remain unclear...
April 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/28301545/implication-of-the-intestinal-microbiome-as-a-potential-surrogate-marker-of-immune-responsiveness-to-experimental-therapies-in-autoimmune-diabetes
#5
James C Needell, Charles A Dinarello, Diana Ir, Charles E Robertson, Sarah M Ryan, Miranda E Kroehl, Daniel N Frank, Danny Zipris
Type 1 diabetes (T1D) is an autoimmune proinflammatory disease with no effective intervention. A major obstacle in developing new immunotherapies for T1D is the lack of means for monitoring immune responsiveness to experimental therapies. The LEW1.WR1 rat develops autoimmunity following infection with the parvovirus Kilham rat virus (KRV) via mechanisms linked with activation of proinflammatory pathways and alterations in the gut bacterial composition. We used this animal to test the hypothesis that intervention with agents that block innate immunity and diabetes is associated with a shift in the gut microbiota...
2017: PloS One
https://www.readbyqxmd.com/read/28292401/what-bariatric-surgery-can%C3%A2-teach-us-about-endoluminal-treatment-of-obesity%C3%A2-and-metabolic-disorders
#6
REVIEW
Lee M Kaplan
Bariatric surgical procedures, including gastric bypass, vertical sleeve gastrectomy, and biliopancreatic diversion, are the most effective and durable treatments for obesity. In addition, These operations induce metabolic changes that provide weight-independent improvement in type 2 diabetes, fatty liver disease and other metabolic disorders. Initially thought to work by mechanical restriction of food intake or malabsorption of ingested nutrients, these procedures are now known to work through complex changes in neuroendocrine and immune signals emanating from the gut, including peptide hormones, bile acids, vagal nerve activity, and metabolites generated by the gut microbiota, all collaborating to reregulate appetite, food preference, and energy expenditure...
April 2017: Gastrointestinal Endoscopy Clinics of North America
https://www.readbyqxmd.com/read/28290049/type-2-diabetes-and-hepatocellular-carcinoma-risk-factors-and-pathogenesis
#7
REVIEW
P Wainwright, E Scorletti, C D Byrne
PURPOSE OF REVIEW: This review aims to assess the epidemiological evidence for a link between type 2 diabetes and hepatocellular carcinoma and to investigate possible pathophysiological mechanisms. RECENT FINDINGS: The presence of type 2 diabetes significantly increases the risk of developing hepatocellular carcinoma, and treatment with metformin may be associated with a lower risk. Treatment with insulin and sulphonylureas may be associated with increased risk...
April 2017: Current Diabetes Reports
https://www.readbyqxmd.com/read/28270263/the-intestinal-proteome-of-diabetic-and-control-children-is-enriched-with-different-microbial-and-host-proteins
#8
Elsa Pinto, Marisol Anselmo, Manuela Calha, Andrew Bottrill, Isabel Duarte, Peter W Andrew, Maria L Faleiro
In this study, the intestinal microbial proteome of children with established type 1 diabetes (T1D) was compared with the proteome of healthy children (Control) with the aim to identify differences in the activity of the intestinal microbiota that not only will contribute to a deeper knowledge of the functionality of the gut in these children but also may provide new approaches to improve the control of the disease. Faecal protein extracts collected from three T1D children (aged 9.3±0.6 years) and three Control children (aged 9...
February 2017: Microbiology
https://www.readbyqxmd.com/read/28266265/effects-of-dietary-iron-modulation-on-gut-microbial-composition-and-function-in-monogastrics-a-review
#9
Guixin Qin, Rui Han, Bao Zhao, Hailong Jiang, Mohammed Hamdy Farouk, Chun Zhang, Dongsheng Che
Dietary iron is a crucial nutrient element for biological processes of both hosts and gut microbiota. Deficiency in dietary iron is a highly common disorder in the developing locations of the world and can be healed by oral iron administration or complementary iron diet. While the redundant iron that enters the gut lumen leads to negative effects, and modulates the gut microbial composition and function. Such modulation led to a significant effect on vital biological pathways of the host, including metabolic disease (obesity and type 2 diabetes), metabolites (SCFA, blood glucose and cholesterol), bile acid metabolism, endocrine, neural, and other well-being patterns...
March 5, 2017: Protein and Peptide Letters
https://www.readbyqxmd.com/read/28265960/impact-of-bariatric-surgery-on-metabolic-and-gut-microbiota-profile-a-systematic-review-and-meta-analysis
#10
REVIEW
Dimitrios E Magouliotis, Vasiliki S Tasiopoulou, Eleni Sioka, Christina Chatedaki, Dimitrios Zacharoulis
We aim to review the available literature on obese patients treated with bariatric procedures, in order to assess their effect on the metabolic and gut microbiota profiles. A systematic literature search was performed in PubMed, Cochrane library, and Scopus databases, in accordance with the PRISMA guidelines. Twenty-two studies (562 patients) met the inclusion criteria. This study points to significant amelioration of postoperative levels of glucose, insulin, triglycerides, total cholesterol, LDL, HDL, HOMA-IR, food intake, and diabetes remission...
March 6, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28261173/gut-microbial-diversity-assessment-of-indian-type-2-diabetics-reveals-alterations-in-eubacteria-archaea-and-eukaryotes
#11
Shrikant S Bhute, Mangesh V Suryavanshi, Suyog M Joshi, Chittaranjan S Yajnik, Yogesh S Shouche, Saroj S Ghaskadbi
Diabetes in India has distinct genetic, nutritional, developmental and socio-economic aspects; owing to the fact that changes in gut microbiota are associated with diabetes, we employed semiconductor-based sequencing to characterize gut microbiota of diabetic subjects from this region. We suggest consolidated dysbiosis of eubacterial, archaeal and eukaryotic components in the gut microbiota of newly diagnosed (New-DMs) and long-standing diabetic subjects (Known-DMs) compared to healthy subjects (NGTs). Increased abundance of phylum Firmicutes (p = 0...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28257664/intake-of-total-saponins-and-polysaccharides-from-polygonatum-kingianum-affects-the-gut-microbiota-in-diabetic-rats
#12
Hongli Yan, Jianmei Lu, Yanfang Wang, Wen Gu, Xingxin Yang, Jie Yu
BACKGROUND: The gut microbiota has been reported to play a critical role in metabolic diseases, including in diabetes. Polygonatum kingianum has been used in the treatment of diabetes and related diseases in China for centuries. Total saponins (TSPK) and total polysaccharides (PSPK) were reported to be major types of active constituents of P. kingianum. This research aims at investigation of their therapeutical mechanisms on diabetes based on the regulation of gut microbiota. STUDY DESIGN: Type 2 diabetes (T2D) rats were induced by high-fat diet (HFD) and streptozotocin-injection from male Sprague-Dawley (SD) rats...
March 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28257583/the-oral-cavity-microbiota-between-health-oral-disease-and-cancers-of-the-aerodigestive-tract
#13
Pierre Le Bars, Sebastien Metamoros, Emmanuel Montassier, Françoise Le Vacon, Gilles Potel, Assem Soueidan, Fabienne Jordana, Marie-France De La Cochétière
Many studies show that the human microbiome plays a critical role in the chronic pathologies of obesity, inflammatory bowel diseases, and diabetes. More recently, the interaction between cancer and the microbiome has been highlighted. Most studies have focused on the gut microbiota because it represents the most extensive bacterial community, and the body of evidence correlating it with gut syndromes is increasing. However, in the strict sense, the gastrointestinal (GI) tract begins in the oral cavity, and special attention should be paid to the specific flora of this cavity...
March 3, 2017: Canadian Journal of Microbiology
https://www.readbyqxmd.com/read/28252037/a-proliferative-probiotic-bifidobacterium-strain-in-the-gut-ameliorates-progression-of-metabolic-disorders-via-microbiota-modulation-and-acetate-elevation
#14
Ryo Aoki, Kohei Kamikado, Wataru Suda, Hiroshi Takii, Yumiko Mikami, Natsuki Suganuma, Masahira Hattori, Yasuhiro Koga
The gut microbiota is an important contributor to the worldwide prevalence of metabolic syndrome (MS), which includes obesity and diabetes. The anti-MS effects exerted by Bifidobacterium animalis ssp. lactis GCL2505 (BlaG), a highly proliferative Bifidobacterium strain in the gut, and B. longum ssp. longum JCM1217(T) (BloJ) were comparatively examined. BlaG treatment reduced visceral fat accumulation and improved glucose tolerance, whereas BloJ had no effect on these parameters. Gut microbial analysis revealed that BlaG exerted stronger effects on the overall bacterial structure of the gut microbiota than BloJ, including enrichment of the genus Bifidobacterium...
March 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28249988/curcumin-improves-intestinal-barrier-function-modulation-of-intracellular-signaling-and-organization-of-tight-junctions
#15
Jing Wang, Siddhartha S Ghosh, Shobha Ghosh
Association between circulating lipopolysaccharide (LPS) and metabolic diseases (such as Type 2 Diabetes and atherosclerosis) has shifted the focus from high-fat high-cholesterol containing western type diet (WD)-induced changes in gut microbiota per se to release of gut bacteria-derived products (e.g., LPS) into circulation due to intestinal barrier dysfunction as the possible mechanism for the chronic inflammatory state underlying the development of these diseases. We demonstrated earlier that oral supplementation with curcumin attenuates WD-induced development of Type-2 diabetes and atherosclerosis...
March 1, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/28249816/anti-inflammatory-and-antioxidant-effects-of-polyphenols-extracted-from-antirhea-borbonica-medicinal-plant-on-adipocytes-exposed-to-porphyromonas-gingivalis-and-escherichia-coli-lipopolysaccharides
#16
Fanny Le Sage, Olivier Meilhac, Marie-Paule Gonthier
In obesity, gut microbiota LPS may translocate into the blood stream and then contribute to adipose tissue inflammation and oxidative stress, leading to insulin resistance. A causal link between periodontal infection, obesity and type 2 diabetes has also been suggested. We evaluated the ability of polyphenols from Antirhea borbonica medicinal plant to improve the inflammatory and redox status of 3T3-L1 adipocytes exposed to LPS of Porphyromonas gingivalis periodontopathogen or Escherichia coli enterobacteria...
February 27, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28240004/gut-microbiota-and-pancreatic-diseases
#17
Marianna Signoretti, Roberta Roggiolani, Caterina Stornello, Gianfranco Delle Fave, Gabriele Capurso
Changes in diet, lifestyle and exposition to environmental risk factors account for the increased incidence of pancreatic disorders, including acute and chronic pancreatitis, and pancreatic cancer. The role of the microbiome in the development of pancreatic disorders is increasingly recognized. The translocation of gut bacteria and endotoxins following gut barrier failure is a key event contributing to the severity of acute pancreatitis, while small intestine bacterial overgrowth is common in patients with chronic pancreatitis and further worsens their symptoms and malnutrition...
February 24, 2017: Minerva Gastroenterologica e Dietologica
https://www.readbyqxmd.com/read/28237320/a-perspective-on-metabolic-surgery-from-a-gastroenterologist
#18
REVIEW
Yu-Fong Syu, Akio Inui, Chih-Yen Chen
Type 2 diabetes (T2D) and obesity are important public health problems. The global prevalence of diabetes mellitus is 8.8%. Interventional diabetology and obesitology have been recently advocated as treatment options for T2D and obesity. The roles of metabolic surgery such as Roux-en-Y gastric bypass, sleeve gastrectomy, gastric banding, and biliopancreatic diversion are focused. Different types of metabolic surgeries have different glucose-lowering and weight loss effects. Endoscopic treatments include the intra-gastric balloon (to restrict the gastric volume) and duodenal-jejunal bypass liner (DJBL, as a malabsorptive procedure)...
January 19, 2017: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/28231175/mushroom-polysaccharides-chemistry-and-antiobesity-antidiabetes-anticancer-and-antibiotic-properties-in-cells-rodents-and-humans
#19
REVIEW
Mendel Friedman
More than 2000 species of edible and/or medicinal mushrooms have been identified to date, many of which are widely consumed, stimulating much research on their health-promoting properties. These properties are associated with bioactive compounds produced by the mushrooms, including polysaccharides. Although β-glucans (homopolysaccharides) are believed to be the major bioactive polysaccharides of mushrooms, other types of mushroom polysaccharides (heteropolysaccharides) also possess biological properties. Here we survey the chemistry of such health-promoting polysaccharides and their reported antiobesity and antidiabetic properties as well as selected anticarcinogenic, antimicrobial, and antiviral effects that demonstrate their multiple health-promoting potential...
November 29, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28222147/the-desert-gerbil-psammomys-obesus-as-a-model-for-metformin-sensitive-nutritional-type-2-diabetes-to-protect-hepatocellular-metabolic-damage-impact-of-mitochondrial-redox-state
#20
Inès Gouaref, Dominique Detaille, Nicolas Wiernsperger, Naim Akhtar Khan, Xavier Leverve, Elhadj-Ahmed Koceir
INTRODUCTION: While metformin (MET) is the most widely prescribed antidiabetic drug worldwide, its beneficial effects in Psammomys obesus (P. obesus), a rodent model that mimics most of the metabolic features of human diabetes, have not been explored thoroughly. Here, we sought to investigate whether MET might improve insulin sensitivity, glucose homeostasis, lipid profile as well as cellular redox and energy balance in P. obesus maintained on a high energy diet (HED). MATERIALS AND METHODS: P...
2017: PloS One
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