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Gut microbiota and diabetes

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https://www.readbyqxmd.com/read/29233686/exercise-has-the-guts-how-physical-activity-may-positively-modulate-gut-microbiota-in-chronic-and-immune-based-diseases
#1
Roberto Codella, Livio Luzi, Ileana Terruzzi
Limited animal and human research findings suggests that exercise might have a beneficial role for health gut. Cardiorespiratory fitness has been correlates with health-associated gut parameters such as taxonomic diversity and richness. Physical exercise may augment intestinal microbial diversity through several mechanisms INCLUDING PROMOTION OF AN ANTI-INFLAMMATORY STATE. Disease-associated microbial functions WERE linked to distinct taxa in previous studies of familial type 1 diabetes mellitus (T1D). An integrated multi-approach in the study of T1D, including physical exercise, is advocated...
November 28, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/29221120/gut-microbial-profile-analysis-by-miseq-sequencing-of-pancreatic-carcinoma-patients-in-china
#2
Zhigang Ren, Jianwen Jiang, Haiyang Xie, Ang Li, Haifeng Lu, Shaoyan Xu, Lin Zhou, Hua Zhang, Guangying Cui, Xinhua Chen, Yuanxing Liu, Liming Wu, Nan Qin, Ranran Sun, Wei Wang, Lanjuan Li, Weilin Wang, Shusen Zheng
Pancreatic carcinoma (PC) is a lethal cancer. Gut microbiota is associated with some risk factors of PC, e.g. obesity and types II diabetes. However, the specific gut microbial profile in clinical PC in China has never been reported. This prospective study collected 85 PC and 57 matched healthy controls (HC) to analyze microbial characteristics by MiSeq sequencing. The results showed that gut microbial diversity was decreased in PC with an unique microbial profile, which partly attributed to its decrease of alpha diversity...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29220800/exposure-to-traffic-related-air-pollution-and-the-composition-of-the-gut-microbiota-in-overweight-and-obese-adolescents
#3
Tanya L Alderete, Roshonda B Jones, Zhanghua Chen, Jeniffer S Kim, Rima Habre, Frederick Lurmann, Frank D Gilliland, Michael I Goran
BACKGROUND: Traffic-related air pollution (TRAP) exposure has been linked to type 2 diabetes and metabolic dysfunction in humans. Animal studies suggest that air pollutants may alter the composition of the gut microbiota, which may negatively impact metabolic health through changes in the composition and/or function of the gut microbiome. OBJECTIVES: The primary aim of this study was to determine whether elevated TRAP exposure was correlated with gut bacterial taxa in overweight and obese adolescents from the Meta-AIR (Metabolic and Asthma Incidence Research) study...
December 5, 2017: Environmental Research
https://www.readbyqxmd.com/read/29212824/targeted-microbiome-intervention-by-microencapsulated-delayed-release-niacin-beneficially-affects-insulin-sensitivity-in-humans
#4
Daniela Fangmann, Eva-Maria Theismann, Kathrin Türk, Dominik M Schulte, Isabelle Relling, Katharina Hartmann, Julia K Keppler, Jörg-Rainer Knipp, Ateequr Rehman, Femke-Anouska Heinsen, Andre Franke, Lennart Lenk, Sandra Freitag-Wolf, Esther Appel, Stanislav Gorb, Charles Brenner, Dirk Seegert, Georg H Waetzig, Philip Rosenstiel, Stefan Schreiber, Karin Schwarz, Matthias Laudes
OBJECTIVE: Gut microbiota represent a potential novel target for future prediabetes and type 2 diabetes therapies. In that respect, niacin has been shown to beneficially affect the host-microbiome interaction in rodent models. RESEARCH DESIGN AND METHODS: We characterized more than 500 human subjects with different metabolic phenotypes regarding their niacin (nicotinic acid [NA] and nicotinamide [NAM]) status and their gut microbiome. In addition, NA and NAM delayed-release microcapsules were engineered and examined in vitro and in vivo in two human intervention studies (bioavailability study and proof-of-concept/safety study)...
December 6, 2017: Diabetes Care
https://www.readbyqxmd.com/read/29211981/mait-cells-a-link-between-gut-integrity-and-type-1-diabetes
#5
Elke Gülden, Noah Palm, Kevan C Herold
Type 1 diabetes (T1D) is a multifactorial autoimmune disease whose etiology involves complex interactions between the immune system and the intestinal microbiota. Recent studies by Rouxel et al. (2017) suggest that innate-like mucosal-associated invariant T cells (MAIT cells) may link gut integrity, the microbiota, and T1D.
December 5, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/29204141/flos-lonicera-combined-with-metformin-ameliorates-hepatosteatosis-and-glucose-intolerance-in-association-with-gut-microbiota-modulation
#6
Na R Shin, Shambhunath Bose, Jing-Hua Wang, AbuZar Ansari, Soo-Kyoung Lim, Young-Won Chin, Han-Seok Choi, Hojun Kim
The gut microbiota is important in energy contribution, metabolism and immune modulation, and compositional disruption of the gut microbiota population is closely associated with chronic metabolic diseases like type 2 diabetes (T2D) and non-alcoholic fatty liver disease (NAFLD). Metformin (MET) and Flos Lonicera (FL) are common treatments for metabolic diseases in Western and Oriental medicinal fields. We evaluated the effect of treatment with FL and MET in combination on hepatosteatosis, glucose tolerance, and gut microbial composition...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29203964/prediction-of-functional-profiles-of-gut-microbiota-from-16s-rrna-metagenomic-data-provides-a-more-robust-evaluation-of-gut-dysbiosis-occurring-in-japanese-type-2-diabetic-patients
#7
Ryo Inoue, Ryuji Ohue-Kitano, Takamitsu Tsukahara, Masashi Tanaka, Shinya Masuda, Takayuki Inoue, Hajime Yamakage, Toru Kusakabe, Koji Hasegawa, Akira Shimatsu, Noriko Satoh-Asahara
We assessed whether gut microbial functional profiles predicted from 16S rRNA metagenomics differed in Japanese type 2 diabetic patients. A total of 22 Japanese subjects were recruited from our outpatient clinic in an observational study. Fecal samples were obtained from 12 control and 10 type 2 diabetic subjects. 16S rRNA metagenomic data were generated and functional profiles predicted using "Phylogenetic Investigation of Communities by Reconstruction of Unobserved States" software. We measured the parameters of glucose metabolism, gut bacterial taxonomy and functional profile, and examined the associations in a cross-sectional manner...
November 2017: Journal of Clinical Biochemistry and Nutrition
https://www.readbyqxmd.com/read/29202334/berberine-treatment-increases-akkermansia-in-the-gut-and-improves-high-fat-diet-induced-atherosclerosis-in-apoe-mice
#8
Lin Zhu, Danying Zhang, Hong Zhu, Jimin Zhu, Shuqiang Weng, Ling Dong, Taotao Liu, Yu Hu, Xizhong Shen
BACKGROUND AND AIMS: Gut microbiota plays a major role in metabolic disorders. Berberine is used to treat obesity, diabetes and atherosclerosis. The mechanism underlying the role of berberine in modulating metabolic disorders is not fully clear because berberine has poor oral bioavailability. Thus, we evaluated whether the antiatherosclerotic effect of berberine is related to alterations in gut microbial structure and if so, whether specific bacterial taxa contribute to the beneficial effects of berberine...
November 24, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29198451/development-of-the-microbiota-in-infants-and-its-role-in-maturation-of-the-gut-mucosa-and-the-immune-system
#9
Cecilia Ximenez, Javier Torres
Dysbiosis of the gut microbiota has been associated with increasing numbers of diseases, including obesity, diabetes, inflammatory bowel disease, asthma, allergy, cancer and even neurologic or behavioral disorders. The other side of the coin is that a healthy microbiota leads to a healthy human development, to a mature and well trained immune system and to an efficient metabolic machinery. What we have learned in adults is in the end the result of a good start, a programmed, healthy development of the microbiota that must occur in the early years of life, probably even starting during the fetal stage...
November 30, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29197615/interplay-between-the-lung-microbiome-and-lung-cancer
#10
Qixing Mao, Feng Jiang, Rong Yin, Jie Wang, Wenjie Xia, Gaochao Dong, Weidong Ma, Yao Yang, Lin Xu, Jianzhong Hu
The human microbiome confers benefits or disease susceptibility to the human body through multiple pathways. Disruption of the symbiotic balance of the human microbiome is commonly found in systematic diseases such as diabetes, obesity, and chronic gastric diseases. Emerging evidence has suggested that dysbiosis of the microbiota may also play vital roles in carcinogenesis at multiple levels, e.g., by affecting metabolic, inflammatory, or immune pathways. Although the impact of the gut microbiome on the digestive cancer has been widely explored, few studies have investigated the interplay between the microbiome and lung cancer...
November 29, 2017: Cancer Letters
https://www.readbyqxmd.com/read/29195686/role-of-bile-acids-in-metabolic-control
#11
REVIEW
Antonio Molinaro, Annika Wahlström, Hanns-Ulrich Marschall
Bile acids are endocrine molecules that in addition to facilitating the absorption of fat-soluble nutrients regulate numerous metabolic processes, including glucose, lipid, and energy homeostasis. The signaling actions of bile acids are mediated through specific bile-acid-activated nuclear and membrane-bound receptors. These receptors are not only expressed by tissues within the enterohepatic circulation such as the liver and the intestine, but also in other organs where bile acids mediate their systemic actions...
November 28, 2017: Trends in Endocrinology and Metabolism: TEM
https://www.readbyqxmd.com/read/29191432/cereal-fiber-fruit-fiber-and-type-2-diabetes-explaining-the-paradox
#12
REVIEW
Karen M Davison, Norman J Temple
While the relationship between dietary fiber and type 2 diabetes mellitus (T2DM) has been much studied, the evidence about its role in the prevention and control of this condition has been conflicting. We critically evaluate prospective cohort studies and randomized controlled trials (RCTs) that examined insoluble/nonviscous/cereal fiber and soluble/viscous/fruit fiber in relation to risk of T2DM. Taken as a whole this evidence indicates that, in the quantities typically eaten, cereal fiber is protective against T2DM while fruit fiber gives little protection...
November 10, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/29182580/genes-and-gut-bacteria-involved-in-luminal-butyrate-reduction-caused-by-diet-and-loperamide
#13
Nakwon Hwang, Taekil Eom, Sachin K Gupta, Seong-Yeop Jeong, Do-Youn Jeong, Yong Sung Kim, Ji-Hoon Lee, Michael J Sadowsky, Tatsuya Unno
Unbalanced dietary habits and gut dysmotility are causative factors in metabolic and functional gut disorders, including obesity, diabetes, and constipation. Reduction in luminal butyrate synthesis is known to be associated with gut dysbioses, and studies have suggested that restoring butyrate formation in the colon may improve gut health. In contrast, shifts in different types of gut microbiota may inhibit luminal butyrate synthesis, requiring different treatments to restore colonic bacterial butyrate synthesis...
November 28, 2017: Genes
https://www.readbyqxmd.com/read/29176714/analyses-of-gut-microbiota-and-plasma-bile-acids-enable-stratification-of-patients-for-antidiabetic-treatment
#14
Yanyun Gu, Xiaokai Wang, Junhua Li, Yifei Zhang, Huanzi Zhong, Ruixin Liu, Dongya Zhang, Qiang Feng, Xiaoyan Xie, Jie Hong, Huahui Ren, Wei Liu, Jing Ma, Qing Su, Hongmei Zhang, Jialin Yang, Xiaoling Wang, Xinjie Zhao, Weiqiong Gu, Yufang Bi, Yongde Peng, Xiaoqiang Xu, Huihua Xia, Fang Li, Xun Xu, Huanming Yang, Guowang Xu, Lise Madsen, Karsten Kristiansen, Guang Ning, Weiqing Wang
Antidiabetic medication may modulate the gut microbiota and thereby alter plasma and faecal bile acid (BA) composition, which may improve metabolic health. Here we show that treatment with Acarbose, but not Glipizide, increases the ratio between primary BAs and secondary BAs and plasma levels of unconjugated BAs in treatment-naive type 2 diabetes (T2D) patients, which may beneficially affect metabolism. Acarbose increases the relative abundances of Lactobacillus and Bifidobacterium in the gut microbiota and depletes Bacteroides, thereby changing the relative abundance of microbial genes involved in BA metabolism...
November 27, 2017: Nature Communications
https://www.readbyqxmd.com/read/29172946/postprandial-gut-microbiota-driven-choline-metabolism-links-dietary-cues-to-adipose-tissue-dysfunction
#15
Rebecca C Schugar, Belinda Willard, Zeneng Wang, J Mark Brown
The human body is an integrated circuit between microbial symbionts and our Homo sapien genome, which communicate bi-directionally to maintain homeostasis within the human meta-organism. There is now strong evidence that microbes resident in the human intestine can directly contribute to the pathogenesis of obesity and associated cardiometabolic disorders. In fact, gut microbes represent a filter of our greatest environmental exposure - the foods we consume. It is now clear that we each experience a given meal differently, based on our unique gut microbial communities...
November 27, 2017: Adipocyte
https://www.readbyqxmd.com/read/29171288/structure-moderation-of-gut-microbiota-in-liraglutide-treated-diabetic-male-rats
#16
Qian Zhang, Xinhua Xiao, Jia Zheng, Ming Li, Miao Yu, Fan Ping, Tong Wang, Xiaojing Wang
The change of gut microbiome is associated with a serious of metabolic disorders, such as diabetes. As a glucagon-like peptide 1 analogue, liraglutide is a potent antidiabetic drug in clinical practice. However, the effect of liraglutide on the community of gut microbiota is still unknown. We aimed to determine the influence of liraglutide on fecal microbiota in diabetic male rats. Five-week-old male Sprague-Dawley rats were fed with a control diet or a high-fat diet for four weeks. By injecting streptozotocin, the diabetic rat model was performed...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29167659/balancing-herbal-medicine-and-functional-food-for-prevention-and-treatment-of-cardiometabolic-diseases-through-modulating-gut-microbiota
#17
REVIEW
Ming Lyu, Yue-Fei Wang, Guan-Wei Fan, Xiao-Ying Wang, Shuang-Yong Xu, Yan Zhu
It has become apparent that gut microbiota is closely associated with cardiometabolic diseases (CMDs), and alteration in microbiome compositions is also linked to the host environment. Next generation sequencing (NGS) has facilitated in-depth studies on the effects of herbal medicine and functional food on gut microbiota. Both herbal medicine and functional food contain fiber, polyphenols and polysaccharides, exerting prebiotics-like activities in the prevention and treatment of CMDs. The administrations of herbal medicine and functional food lead to increased the abundance of phylum Bacteroidetes, and genus Akkermansia, Bifidobacteria, Lactobacillus, Bacteroides and Prevotella, while reducing phylum Firmicutes and Firmicutes/Bacteroidetes ratio in gut...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29165404/benefits-of-nut-consumption-on-insulin-resistance-and-cardiovascular-risk-factors-multiple-potential-mechanisms-of-actions
#18
REVIEW
Yoona Kim, Jennifer B Keogh, Peter M Clifton
Epidemiological and clinical studies have indicated that nut consumption could be a healthy dietary strategy to prevent and treat type 2 diabetes (T2DM) and related cardiovascular disease (CVD). The objective of this review is to examine the potential mechanisms of action of nuts addressing effects on glycemic control, weight management, energy balance, appetite, gut microbiota modification, lipid metabolism, oxidative stress, inflammation, endothelial function and blood pressure with a focus on data from both animal and human studies...
November 22, 2017: Nutrients
https://www.readbyqxmd.com/read/29164155/new-insights-into-the-mechanisms-of-chinese-herbal-products-on-diabetes-a-focus-on-the-bacteria-mucosal-immunity-inflammation-diabetes-axis
#19
REVIEW
Zezheng Gao, Qingwei Li, Xuemin Wu, Xuemin Zhao, Linhua Zhao, Xiaolin Tong
Diabetes, especially type 2, has been rapidly increasing all over the world. Although many drugs have been developed and used to treat diabetes, side effects and long-term efficacy are of great challenge. Therefore, natural health product and dietary supplements have been of increasing interest alternatively. In this regard, Chinese herbs and herbal products have been considered a rich resource of product development. Although increasing evidence has been produced from various scientific studies, the mechanisms of action are lacking...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29158587/analysis-of-the-gut-microbiome-and-plasma-short-chain-fatty-acid-profiles-in-a-spontaneous-mouse-model-of-metabolic-syndrome
#20
Kazuchika Nishitsuji, Jinzhong Xiao, Ryosuke Nagatomo, Hitomi Umemoto, Yuki Morimoto, Hiroyasu Akatsu, Koichi Inoue, Koichi Tsuneyama
Male Tsumura Suzuki obese diabetes (TSOD) mice spontaneously develop obesity and obesity-related metabolic syndrome. Gut dysbiosis, an imbalance of gut microbiota, has been implicated in the pathogenesis of metabolic syndrome, but its mechanisms are unknown. Short-chain fatty acids (SCFAs) are the main fermentation products of gut microbiota and a link between the gut microbiota and the host's physiology. Here, we investigated a correlation among gut dysbiosis, SCFAs, and metabolic syndrome in TSOD mice. We detected enriched levels of Gram-positive bacteria and corresponding decreases in Gram-negative bacteria in 24-wk-old metabolic syndrome-affected TSOD mice compared with age-matched controls...
November 20, 2017: Scientific Reports
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