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https://www.readbyqxmd.com/read/28446519/cationic-polystyrene-resolves-nonalcoholic-steatohepatitis-nash-obesity-and-metabolic-disorders-by-promoting-eubiosis-of-gut-microbiota-and-decreasing-endotoxemia
#1
Airu Zhu, Jingjing Chen, Pengfei Wu, Mei Luo, Yilan Zeng, Han Zheng, Li Zhang, Zishou Cheng, Qun Sun, Wenwen Li, Yixiang Duan, Danmei Su, Zhixiong Xiao, Zhongping Duan, Sujun Zheng, Li Bei, Xiaohui Zhang, Zhongyuan Ju, Richard Hu, Stephen J Pandol, Yuan-Ping Han
A pandemic of metabolic diseases, consisting of type-2 diabetes, non-alcoholic fatty liver diseases (NAFLD) and obesity, has imposed critical challenges for societies worldwide, prompting investigation of underlying mechanisms and exploration of low cost and effective treatment. In this report, we demonstrate that metabolic disorders in mice generated by feeding with a high-fat diet without dietary vitamin D (HD) can be prevented by oral administration of polycationic amine resin. Oral administration of cholestyramine , but not the control uncharged polystyrene, was able to sequester negatively charged bacterial endotoxin in the gut, leading to (1) reducing plasma endotoxin levels, (2) resolving systemic inflammation and hepatic steatohepatitis,and (3) improving insulin sensitivity...
April 26, 2017: Diabetes
https://www.readbyqxmd.com/read/28444600/antibiotic-sensitivity-pattern-of-indigenous-lactobacilli-isolated-from-curd-and-human-milk-samples
#2
Chetan Sharma, Sachin Gulati, Nishchal Thakur, Brij Pal Singh, Sanjolly Gupta, Simranpreet Kaur, Santosh Kumar Mishra, Anil Kumar Puniya, Jatinder Pal Singh Gill, Harsh Panwar
The gut microbiota plays a vital role in host well-being and lactic acid bacteria (LAB) have gained an overwhelming attention as health promoter. This perception has evolved from traditional dairy products to a money-spinning market of probiotics. The safety of probiotics is coupled to their intended use and LAB may act as pool of antimicrobial resistance genes that could be transferred to pathogens, either in food matrix or in gastrointestinal tract, which could be detrimental to host. This study evaluated the antibiotic susceptibility patterns of LAB isolated from curd (20) and human milk (11) samples...
May 2017: 3 Biotech
https://www.readbyqxmd.com/read/28443064/loss-of-vagal-sensitivity-to-cholecystokinin-in-rats-born-with-intrauterine-growth-retardation-and-consequence-on-food-intake
#3
Marième Ndjim, Camille Poinsignon, Patricia Parnet, Gwenola Le Dréan
Perinatal malnutrition is associated with low birth weight and an increased risk of developing metabolic syndrome in adulthood. Modification of food intake (FI) regulation was observed in adult rats born with intrauterine growth retardation induced by maternal dietary protein restriction during gestation and maintained restricted until weaning. Gastrointestinal peptides and particularly cholecystokinin (CCK) play a major role in short-term regulation of FI by relaying digestive signals to the hindbrain via the vagal afferent nerve (VAN)...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28436760/diabetes-management-by-probiotics-current-knowledge-and-future-pespective
#4
Aziz Homayouni-Rad, Ahmad-Reza Soroush, Leila Khalili, Leila Norouzi-Panahi, Zahra Kasaie, Hanieh-Sadat Ejtahed
Diabetes mellitus, a multifactorial disorder, is related to the intestinal microbiota via numerous molecular mechanisms. The vast increase in the prevalence of diabetes and its associated complications requires a natural and safe solution. There is a growing evidence of gut microbiota effi ciency in improving insulin resistance, impaired insulin secretion, and metabolic complications in diabetic patients. Probiotics are defi ned as live microorganisms that, when ingested in adequate amounts, exert health benefi ts to the host...
April 24, 2017: International Journal for Vitamin and Nutrition Research. Journal International de Vitaminologie et de Nutrition
https://www.readbyqxmd.com/read/28434790/short-n-terminal-galanin-fragments-are-occurring-naturally-in-vivo
#5
Robert Ihnatko, Elvar Theodorsson
The galanin family currently consists of four peptides, namely galanin, galanin-message associated peptide, galanin-like peptide and alarin. Unlike galanin that signals through three different G protein-coupled receptors; GAL1, GAL2, and GAL3, binding at its N-terminal end, the cognate receptors for other members of the galanin family are currently unknown. Research using short N-terminal galanin fragments generated either by enzymatic cleavage or solid-phase synthesis has revealed differences in their receptor binding properties exerting numerous biological effects distinct from galanin(1-29) itself...
April 7, 2017: Neuropeptides
https://www.readbyqxmd.com/read/28434728/short-communication-parameters-of-abomasal-emptying-and-glucose-insulin-dynamics-in-holstein-friesian-calves-at-2-ages-and-2-levels-of-milk-replacer-intake
#6
P Stahel, J A R MacPherson, H Berends, M A Steele, J P Cant
Elevated planes of nutrition in the preweaning period of dairy calf management can increase average daily gain, shorten age at puberty, and increase milk yield. In a previous study, 12 Holstein calves were fed 2 meals/d of 4 or 2 L milk replacer up to 7 wk of age. The objective of the current study was to estimate parameters of abomasal emptying and glucose-insulin dynamics in these calves by fitting a mechanistic model to postprandial appearances of plasma glucose, insulin, and the abomasal emptying marker acetaminophen measured at 4 and 7 wk of age...
April 20, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28425154/rifaximin-in-non-alcoholic-steatohepatitis-an-open-label-pilot-study
#7
Jeremy F L Cobbold, Stephen Atkinson, Julian R Marchesi, Ann Smith, Sann N Wai, Julie Stove, Fariba Shojaee-Moradie, Nicola Jackson, A Margot Umpleby, Julie Fitzpatrick, E Louise Thomas, Jimmy D Bell, Elaine Holmes, Simon D Taylor-Robinson, Robert D Goldin, Michael S Yee, Quentin M Anstee, Mark R Thursz
AIM: Gut microbial dysbiosis is implicated in the pathogenesis of non-alcoholic steatohepatitis (NASH). We investigated downstream effects of gut microbiota modulation on markers of hepatic inflammation, steatosis, and hepatic and peripheral insulin sensitivity in patients with NASH using Rifaximin therapy. METHODS: Patients with biopsy-proven NASH and elevated aminotransferase values were included in this open-label pilot study, all receiving 6 weeks Rifaximin 400 mg twice daily, followed by a 6 week observation period...
April 20, 2017: Hepatology Research: the Official Journal of the Japan Society of Hepatology
https://www.readbyqxmd.com/read/28424327/rig-i-mavs-and-sting-signaling-promote-gut-integrity-during-irradiation-and-immune-mediated-tissue-injury
#8
Julius C Fischer, Michael Bscheider, Gabriel Eisenkolb, Chia-Ching Lin, Alexander Wintges, Vera Otten, Caroline A Lindemans, Simon Heidegger, Martina Rudelius, Sébastien Monette, Kori A Porosnicu Rodriguez, Marco Calafiore, Sophie Liebermann, Chen Liu, Stefan Lienenklaus, Siegfried Weiss, Ulrich Kalinke, Jürgen Ruland, Christian Peschel, Yusuke Shono, Melissa Docampo, Enrico Velardi, Robert R Jenq, Alan M Hanash, Jarrod A Dudakov, Tobias Haas, Marcel R M van den Brink, Hendrik Poeck
The molecular pathways that regulate the tissue repair function of type I interferon (IFN-I) during acute tissue damage are poorly understood. We describe a protective role for IFN-I and the RIG-I/MAVS signaling pathway during acute tissue damage in mice. Mice lacking mitochondrial antiviral-signaling protein (MAVS) were more sensitive to total body irradiation- and chemotherapy-induced intestinal barrier damage. These mice developed worse graft-versus-host disease (GVHD) in a preclinical model of allogeneic hematopoietic stem cell transplantation (allo-HSCT) than did wild-type mice...
April 19, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28424190/odd-chain-fatty-acids-as-a-biomarker-for-dietary-fiber-intake-a-novel-pathway-for-endogenous-production-from-propionate
#9
Karolin Weitkunat, Sara Schumann, Daniela Nickel, Silke Hornemann, Klaus J Petzke, Matthias B Schulze, Andreas Fh Pfeiffer, Susanne Klaus
Background: The risk of type 2 diabetes is inversely correlated with plasma concentrations of odd-chain fatty acids [OCFAs; pentadecanoic acid (15:0) and heptadecanoic acid (17:0)], which are considered as biomarkers for dairy fat intake in humans. However, rodent studies suggest that OCFAs are synthesized endogenously from gut-derived propionate. Propionate increases with dietary fiber consumption and has been shown to improve insulin sensitivity.Objective: We hypothesized that OCFAs are produced in humans from dietary fibers by a novel endogenous pathway...
April 19, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28423270/bioaccumulation-and-biodistribution-of-selenium-in-metamorphosing-tadpoles
#10
Chantal M Lanctot, Tom Cresswell, Paul D Callaghan, Steven D Melvin
Selenium is an important macronutrient with a very narrow margin between essentiality and toxicity. Amphibians are hypothesized to be particularly sensitive due to the potential for metamorphosis-driven mobilization, which could transfer or concentrate contaminant burdens within specific organs. We explored the potential role of tissue degeneration and remodeling during anuran metamorphosis as a mechanism for altering tissue-specific Se burdens. Limnodynastes peronii tadpoles were exposed to dissolved (75)Se (as selenite) for 7 days and depurated until completion of metamorphosis...
April 19, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28420969/acquisition-maintenance-and-relapse-like-alcohol-drinking-lessons-from-the-uchb-rat-line
#11
REVIEW
Yedy Israel, Eduardo Karahanian, Fernando Ezquer, Paola Morales, Marcelo Ezquer, Mario Rivera-Meza, Mario Herrera-Marschitz, María E Quintanilla
This review article addresses the biological factors that influence: (i) the acquisition of alcohol intake; (ii) the maintenance of chronic alcohol intake; and (iii) alcohol relapse-like drinking behavior in animals bred for their high-ethanol intake. Data from several rat strains/lines strongly suggest that catalase-mediated brain oxidation of ethanol into acetaldehyde is an absolute requirement (up 80%-95%) for rats to display ethanol's reinforcing effects and to initiate chronic ethanol intake. Acetaldehyde binds non-enzymatically to dopamine forming salsolinol, a compound that is self-administered...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28419265/validation-of-the-sepsis-metascore-for-diagnosis-of-neonatal-sepsis
#12
Timothy E Sweeney, James L Wynn, María Cernada, Eva Serna, Hector R Wong, Henry V Baker, Máximo Vento, Purvesh Khatri
What’s Known on This Subject.: Neonates are at increased risk for developing sepsis, but this population often exhibits ambiguous clinical signs that complicate the diagnosis of infection. No biomarker has yet shown enough diagnostic accuracy to rule out sepsis at the time of clinical suspicion. What This Study Adds.: We show that a gene-expression-based signature is an accurate objective measure of the risk of sepsis in a neonate or preterm infant, and it substantially improves diagnostic accuracy over that of commonly used laboratory-based testing...
April 13, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28414780/sensitive-quantification-of-the-hiv-1-reservoir-in-gut-associated-lymphoid-tissue
#13
Sara Morón-López, Maria C Puertas, Cristina Gálvez, Jordi Navarro, Anna Carrasco, Maria Esteve, Josep Manyé, Manel Crespo, Maria Salgado, Javier Martinez-Picado
BACKGROUND: The implementation of successful strategies to achieve an HIV cure has become a priority in HIV research. However, the current location and size of HIV reservoirs is still unknown since there are limited tools to evaluate HIV latency in viral sanctuaries such as gut-associated lymphoid tissue (GALT). As reported in the so called "Boston Patients", despite undetectable levels of proviral HIV-1 DNA in blood and GALT, viral rebound happens in just few months after ART interruption...
2017: PloS One
https://www.readbyqxmd.com/read/28413062/assessment-of-mucosal-integrity-by-quantifying-neutrophil-granulocyte-influx-in-murine-models-of-acute-intestinal-injury
#14
Julius Clemens Fischer, Alexander Wintges, Tobias Haas, Hendrik Poeck
Intact epithelial body surfaces represent physical barriers which protect the organism from invading pathogens and loss of nutrients. Barrier malfunction is closely linked to disorders such as inflammatory bowel disease and graft-versus-host disease. In fact, several pharmacological or radiobiological therapeutic strategies have side effects that affect epithelial surfaces. In this context, assays that accurately assess epithelial barrier integrity in patients and animal models are crucial to create a better understanding of the mechanisms leading to disease or limiting therapeutic approaches due to barrier disruption...
April 11, 2017: Cellular Immunology
https://www.readbyqxmd.com/read/28411689/moutan-cortex-and-paeoniae-radix-rubra-reverse-high-fat-diet-induced-metabolic-disorder-and-restore-gut-microbiota-homeostasis
#15
Ling-Jun Zhong, Zhi-Sheng Xie, Hua Yang, Ping Li, Xiao-Jun Xu
The present study was designed to investigate the therapeutic effcts of Moutan Cortex (CM, root bark of Paeonia suffruticosa Andr) and Paeoniae Radix Rubra (PR, root of Paeonia veitchii Lynch) on metabolic disorders, focusing on the infuence of CM and PR on the obesity-related gut microbiota homeostasis. The diet-induced obese (DIO) mouse model was used to test the therapeutic effects of CM and PR. The mice were orally administered with CM and PR for 6 weeks, and oral glucose tolerance test (OGTT) and insulin tolerance test (ITT) were performed to evaluate the insulin sensitivity of the mice...
March 2017: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/28399266/pirna-3312-a-putative-role-for-pyrethroid-resistance-in-culex-pipiens-pallens-diptera-culicidae
#16
Juxin Guo, Wenyun Ye, Xianmiao Liu, Xueli Sun, Qin Guo, Yun Huang, Lei Ma, Yan Sun, Bo Shen, Dan Zhou, Changliang Zhu
Piwi-interacting RNAs (piRNAs) are a newly identified class of small noncoding RNAs. They are associated with chromatin organization, messenger RNA stability, and genome structure. Although the overexpression of piRNA-3312 in deltamethrin-susceptible (DS) strain of Culex pipiens pallens (L.) was observed in our previous large-scale transcriptome data, the roles of piRNA in insecticide resistance have not been clearly defined. The aim of the present study was to investigate how piRNA-3312 is involved in insecticide resistance...
March 7, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28397877/indolepropionic-acid-and-novel-lipid-metabolites-are-associated-with-a-lower-risk-of-type-2-diabetes-in-the-finnish-diabetes-prevention-study
#17
Vanessa D de Mello, Jussi Paananen, Jaana Lindström, Maria A Lankinen, Lin Shi, Johanna Kuusisto, Jussi Pihlajamäki, Seppo Auriola, Marko Lehtonen, Olov Rolandsson, Ingvar A Bergdahl, Elise Nordin, Pirjo Ilanne-Parikka, Sirkka Keinänen-Kiukaanniemi, Rikard Landberg, Johan G Eriksson, Jaakko Tuomilehto, Kati Hanhineva, Matti Uusitupa
Wide-scale profiling technologies including metabolomics broaden the possibility of novel discoveries related to the pathogenesis of type 2 diabetes (T2D). By applying non-targeted metabolomics approach, we investigated here whether serum metabolite profile predicts T2D in a well-characterized study population with impaired glucose tolerance by examining two groups of individuals who took part in the Finnish Diabetes Prevention Study (DPS); those who either early developed T2D (n = 96) or did not convert to T2D within the 15-year follow-up (n = 104)...
April 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28396623/modified-mediterranean-diet-for-enrichment-of-short-chain-fatty-acids-potential-adjunctive-therapeutic-to-target-immune-and-metabolic-dysfunction-in-schizophrenia
#18
Jamie Joseph, Colin Depp, Pei-An B Shih, Kristen S Cadenhead, Geert Schmid-Schönbein
Growing interest in gut and digestive processes and their potential link to brain and peripheral based inflammation or biobehavioral phenotypes has led to an increasing number of basic and translational scientific reports focused on the role of gut microbiota within the context of neuropsychiatric disorders. However, the effect of dietary modification on specific gut metabolites, in association with immune, metabolic, and psychopathological functioning in schizophrenia spectrum disorders has not been well characterized...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28396144/supplementation-of-diet-with-galacto-oligosaccharides-increases-bifidobacteria-but-not-insulin-sensitivity-in-obese-prediabetic-individuals
#19
Emanuel E Canfora, Christina M van der Beek, Gerben D A Hermes, Gijs H Goossens, Johan W E Jocken, Jens J Holst, Hans M van Eijk, Koen Venema, Hauke Smidt, Erwin G Zoetendal, Cornelis H C Dejong, Kaatje Lenaerts, Ellen E Blaak
BACKGROUND & AIMS: The gut microbiota affects host lipid and glucose metabolism, satiety, and chronic low-grade inflammation to contribute to obesity and type 2 diabetes. Fermentation end products, in particular the short-chain fatty acid (SCFA) acetate, are believed to be involved in these processes. We investigate the long-term effects of supplementation with galacto-oligosaccharides (GOS), an acetogenic fiber, on the composition of the human gut microbiota and human metabolism. METHODS: We performed a double-blinded, placebo-controlled, parallel intervention study of 44 overweight or obese (body mass index, 28-40 kg/m2) prediabetic men and women (ages, 45-70 years) from October 2014 through October 2015 in Maastricht, The Netherlands...
April 7, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28390860/basophil-derived-interleukin-4-promotes-epicutaneous-antigen-sensitization-concomitant-with-the-development-of-food-allergy
#20
Maryam Hussain, Loïc Borcard, Kevin P Walsh, Maria Pena Rodriguez, Christoph Mueller, Brian S Kim, Masato Kubo, David Artis, Mario Noti
BACKGROUND: Exaggerated TSLP production and infiltration of basophils are associated with the pathogenesis of atopic dermatitis (AD), a recognized risk factor for the development of food allergies. While TSLP and basophils have been implicated to promote food-induced allergic disorders in response to epicutaneous sensitization, the mechanisms by which TSLP-elicited basophils guide the progression of allergic inflammation in the skin to distant mucosal sites such as the gastrointestinal tract are poorly understood...
April 5, 2017: Journal of Allergy and Clinical Immunology
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