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https://www.readbyqxmd.com/read/27927684/in-vitro-patterning-of-pluripotent-stem-cell-derived-intestine-recapitulates-in-vivo-human-development
#1
Yu-Hwai Tsai, Roy Nattiv, Priya H Dedhia, Melinda S Nagy, Alana M Chin, Matthew Thomson, Ophir Klein, Jason Spence
The intestine plays a central role in digestion, nutrient absorption and metabolism, with individual regions of the intestine having distinct functional roles. For example, the most proximal region of the small intestine, the duodenum, is associated with absorption of micronutrients such as iron and folate, whereas the more distal ileum is responsible for recycling bile salts. Many examples of region-specific gene expression in the adult intestine are known, but how intestinal regional identity is established during development is a largely open question...
December 7, 2016: Development
https://www.readbyqxmd.com/read/27907092/unconjugated-bile-acids-influence-expression-of-circadian-genes-a-potential-mechanism-for-microbe-host-crosstalk
#2
Kalaimathi Govindarajan, John MacSharry, Patrick G Casey, Fergus Shanahan, Susan A Joyce, Cormac G M Gahan
Disruptions to circadian rhythm in mice and humans have been associated with an increased risk of obesity and metabolic syndrome. The gut microbiota is known to be essential for the maintenance of circadian rhythm in the host suggesting a role for microbe-host interactions in the regulation of the peripheral circadian clock. Previous work suggested a role for gut bacterial bile salt hydrolase (BSH) activity in the regulation of host circadian gene expression. Here we demonstrate that unconjugated bile acids, known to be generated through the BSH activity of the gut microbiota, are potentially chronobiological regulators of host circadian gene expression...
2016: PloS One
https://www.readbyqxmd.com/read/27906625/uric-acid-metabolism-of-kidney-and-intestine-in-a-rat-model-of-chronic-kidney-disease
#3
Michito Nagura, Yoshifuru Tamura, Takanori Kumagai, Makoto Hosoyamada, Shunya Uchida
Uric acid (UA) is a potential risk factor of the progression of chronic kidney disease (CKD). Recently, we reported that intestinal UA excretion might be enhanced via upregulation of the ATP-binding cassette transporter G2 (Abcg2) in a 5/6 nephrectomy (Nx) rat model. In the present study, we examined the mRNA and protein expressions of UA transporters, URAT1, GLUT9/URATv1, ABCG2 and NPT4 in the kidney and ileum in the same rat model. Additionally, we investigated the Abcg2 mRNA expression of ileum in hyperuricemic rat model by orally administering oxonic acid...
December 2016: Nucleosides, Nucleotides & Nucleic Acids
https://www.readbyqxmd.com/read/27895587/vitamin-d-signaling-through-induction-of-paneth-cell-defensins-maintains-gut-microbiota-and-improves-metabolic-disorders-and-hepatic-steatosis-in-animal-models
#4
Danmei Su, Yuanyang Nie, Airu Zhu, Zishuo Chen, Pengfei Wu, Li Zhang, Mei Luo, Qun Sun, Linbi Cai, Yuchen Lai, Zhixiong Xiao, Zhongping Duan, Sujun Zheng, Guihui Wu, Richard Hu, Hidekazu Tsukamoto, Aurelia Lugea, Zhenqui Liu, Stephen J Pandol, Yuan-Ping Han
Metabolic syndrome (MetS), characterized as obesity, insulin resistance, and non-alcoholic fatty liver diseases (NAFLD), is associated with vitamin D insufficiency/deficiency in epidemiological studies, while the underlying mechanism is poorly addressed. On the other hand, disorder of gut microbiota, namely dysbiosis, is known to cause MetS and NAFLD. It is also known that systemic inflammation blocks insulin signaling pathways, leading to insulin resistance and glucose intolerance, which are the driving force for hepatic steatosis...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27875319/enhanced-oral-bioavailability-of-metoprolol-with-gallic-acid-and-ellagic-acid-in-male-wistar-rats-involvement-of-cyp2d6-inhibition
#5
Bhargavi Latha Athukuri, Prasad Neerati
BACKGROUND: Cytochrome P450-2D6 (CYP2D6), a member of the CYP450 mixed function oxidase system, is an important CYP isoform with regard to herbal-drug interactions and is responsible for the metabolism of nearly 25% of drugs. Until now, studies on the effects of various phytochemicals on CYP2D6 activity in vivo have been very rare. Gallic acid and ellagic acid are natural polyphenols which are widely distributed in fruits and medicinal plants. In the present study, the effects of gallic acid and ellagic acid pretreatment on intestinal transport and oral bioavailability of metoprolol were investigated...
December 1, 2016: Drug Metabolism and Personalized Therapy
https://www.readbyqxmd.com/read/27832865/ghrelin-improves-intestinal-mucosal-atrophy-during-parenteral-nutrition-an-experimental-study
#6
Waka Yamada, Tatsuru Kaji, Shun Onishi, Kazuhiko Nakame, Koji Yamada, Takafumi Kawano, Motoi Mukai, Masakazu Souda, Takako Yoshioka, Akihide Tanimoto, Satoshi Ieiri
BACKGROUND/PURPOSE: Total parenteral nutrition (TPN) has been reported to be associated with mucosal atrophy of the small intestine. Ghrelin has hormonal, orexigenic, and metabolic activities. We investigated whether ghrelin improved intestinal mucosal atrophy using a TPN-supported rat model. METHODS: Rats underwent jugular vein catheterization and were divided into four groups: TPN alone (TPN), TPN plus low-dose ghrelin (TPNLG), TPN plus high-dose ghrelin (TPNHG), and oral feeding with normal chow (OF)...
September 17, 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/27798332/the-noncaloric-sweetener-rebaudioside-a-stimulates-glucagon-like-peptide-1-release-and-increases-enteroendocrine-cell-numbers-in-2-dimensional-mouse-organoids-derived-from-different-locations-of-the-intestine
#7
Nikkie van der Wielen, Jean Paul Ten Klooster, Susanne Muckenschnabl, Raymond Pieters, Henk Fj Hendriks, Renger F Witkamp, Jocelijn Meijerink
BACKGROUND: Glucagon-like peptide 1 (GLP-1) contributes to satiety and plays a pivotal role in insulin secretion and glucose homeostasis. Similar to GLP-1, peptide YY (PYY) and cholecystokinin also influence food intake. The secretion of these hormones by enteroendocrine cells along the intestine is modulated by nutrients. Preparations from the Stevia rebaudiana plant, including rebaudioside A, are increasingly being used as noncaloric sweeteners. OBJECTIVE: We investigated the effects of rebaudioside A on enteroendocrine cells by assessing both cell numbers as well as their secretory capacity in an organoid model...
October 26, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27767426/proximal-duodenoileal-anastomosis-for-treatment-of-small-intestinal-obstruction-and-volvulus-in-a-green-iguana-iguana-iguana
#8
Sarah Wills, Hugues Beaufrère, Gwyneth Watrous, Michelle L Oblak, Dale A Smith
CASE DESCRIPTION A 13-year-old female green iguana (Iguana iguana) was examined because of a 6-day history of vomiting, anorexia, and lethargy and a 4-day history of decreased fecal and urate output. CLINICAL FINDINGS Physical examination revealed a distended abdomen, signs of depression, pallor, tachycardia, harsh lung sounds, and vomiting. Abdominal radiographs revealed gas distention of the stomach and small intestine with fluid lines evident on the lateral view. Plasma biochemical analysis indicated hypochloremic metabolic alkalosis, hyperglycemia, and hyperuricemia...
November 1, 2016: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/27756364/dose-response-effect-of-berberine-on-bile-acid-profile-and-gut-microbiota-in-mice
#9
Ying Guo, YouCai Zhang, WeiHua Huang, Felcy Pavithra Selwyn, Curtis D Klaassen
BACKGROUND: Berberine (BBR) is a traditional antimicrobial herbal medicine. Recently, BBR has gained popularity as a supplement to lower blood lipids, cholesterol and glucose. Bile acids (BAs) are known to regulate blood levels of triglycerides, cholesterol, glucose and energy homeostasis, and gut flora play an important role in BA metabolism. However, whether BBR alters BAs metabolism or dose-response effect of BBR on gut flora is unknown. METHODS: In this study, the effects of various doses of BBR on the concentrations of BAs in liver and serum of male C57BL/6 mice were determined by UPLC-MS/MS, and the expression of BA-related genes, as well as the amount of 32 of the most abundant gut bacterial species in the terminal ileum and large intestine of male C57BL/6 mice were quantified by RT-PCR and Quantigene 2...
October 18, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27742763/molecular-classification-of-crohn-s-disease-reveals-two-clinically-relevant-subtypes
#10
Matthew Weiser, Jeremy M Simon, Bharati Kochar, Adelaide Tovar, Jennifer W Israel, Adam Robinson, Gregory R Gipson, Matthew S Schaner, Hans H Herfarth, R Balfour Sartor, Dermot P B McGovern, Reza Rahbar, Timothy S Sadiq, Mark J Koruda, Terrence S Furey, Shehzad Z Sheikh
OBJECTIVE: The clinical presentation and course of Crohn's disease (CD) is highly variable. We sought to better understand the cellular and molecular mechanisms that guide this heterogeneity, and characterise the cellular processes associated with disease phenotypes. DESIGN: We examined both gene expression and gene regulation (chromatin accessibility) in non-inflamed colon tissue from a cohort of adult patients with CD and control patients. To support the generality of our findings, we analysed previously published expression data from a large cohort of treatment-naïve paediatric CD and control ileum...
October 14, 2016: Gut
https://www.readbyqxmd.com/read/27729831/nmr-based-metabolic-characterization-of-chicken-tissues-and-biofluids-a-model-for-avian-research
#11
Caroline Ivanne Le Roy, Luke John Mappley, Roberto Marcello La Ragione, Martin John Woodward, Sandrine Paule Claus
INTRODUCTION: Poultry is one of the most consumed meat in the world and its related industry is always looking for ways to improve animal welfare and productivity. It is therefore essential to understand the metabolic response of the chicken to new feed formulas, various supplements, infections and treatments. OBJECTIVES: As a basis for future research investigating the impact of diet and infections on chicken's metabolism, we established a high-resolution proton nuclear magnetic resonance (NMR)-based metabolic atlas of the healthy chicken (Gallus gallus)...
2016: Metabolomics: Official Journal of the Metabolomic Society
https://www.readbyqxmd.com/read/27721485/the-anti-hyperglycemic-efficacy-of-a-lipid-lowering-drug-daming-capsule-and-the-underlying-signaling-mechanisms-in-a-rat-model-of-diabetes-mellitus
#12
Yong Zhang, Xiaoguang Li, Jiamin Li, Qingwei Zhang, Xiaohui Chen, Xin Liu, Yue Zhang, Haiying Zhang, Huan Yang, Yingying Hu, Xianxian Wu, Xin Li, Jiaming Ju, Baofeng Yang
Diabetes mellitus (DM) is a metabolic disorder manifested by hyperglycemia. Daming Capsule (DMC), a combination of traditional Chinese herbs, is used clinically as a lipid-lowering drug. This study was designed to evaluate if DMC possesses an anti-hyperglycemic effect and to elucidate the underlying mechanisms. Compared to diabetic rats, the rats received DMC (200 mg/kg/d) had significantly lower blood lipid and glucose levels. DMC markedly restored the decreased secretion of GLP-1 and GIP as well as the coding gene GCG and GIP in ileum...
October 10, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27695803/digestibility-of-energy-amino-acids-and-phosphorus-in-a-novel-source-of-soy-protein-concentrate-and-in-soybean-meal-fed-to-growing-pigs
#13
M S Oliveira, H H Stein
Three experiments were conducted to determine standardized ileal digestibility (SID) of CP and AA, DE and ME, and apparent total tract digestibility (ATTD) and standardized total tract digestibility (STTD) of P in a new source of soy protein concentrate (SPC) and in soybean meal (SBM). In Exp. 1, 9 barrows (initial BW: 13.08 ± 1.98 kg) were prepared with a T-cannula in the distal ileum and allotted to a triplicated 3 × 3 Latin square design with 3 diets and 3 periods. A nitrogen-free diet and 2 diets that contained corn starch and SPC or SBM as the sole source of CP and AA were formulated...
August 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27687646/-18-f-fdg-pet-ct-findings-of-primary-intestinal-lymphoma-analysis-of-23-cases
#14
Wei Guan, Quan-Shi Wang, Hu-Bing Wu, Wen-Lan Zhou
OBJECTIVE: To investigate the characteristic (18)F-FDG PET/CT findings in patients with primary intestinal lymphoma (PIL). METHODS: We collected the clinical and (18)F-FDG PET/CT data of 23 patients with PIL who underwent (18)F-FDG PET/CT in our center between January, 2005 and January, 2016. The location, morphologies and metabolic features of the lesions were analyzed in these patients. RESULTS: In the 23 PIL patients, diffusive large B cell lymphoma (DLBCL) and enteropathy- associated T cell lymphoma (EATL) were the primary histopathological types, accounting for 47...
August 20, 2016: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/27669007/spatial-heterogeneity-of-gut-microbial-composition-along-the-gastrointestinal-tract-in-natural-populations-of-house-mice
#15
Taichi A Suzuki, Michael W Nachman
There is a growing appreciation of the role of gut microbial communities in host biology. However, the nature of variation in microbial communities among different segments of the gastrointestinal (GI) tract is not well understood. Here, we describe microbial communities from ten different segments of the GI tract (mouth, esophagus, stomach, duodenum, ileum, proximal cecum, distal cecum, colon, rectum, and feces) in wild house mice using 16S rRNA gene amplicon sequencing. We also measured carbon and nitrogen stable isotopic ratios from hair samples of individual mice as a proxy for diet...
2016: PloS One
https://www.readbyqxmd.com/read/27666676/myeloid-cell-specific-lipin-1-deficiency-stimulates-endocrine-adiponectin-fgf15-axis-and-ameliorates-ethanol-induced-liver-injury-in-mice
#16
Jiayou Wang, Chunki Kim, Alvin Jogasuria, Yoonhee Han, Xudong Hu, Jiashin Wu, Hong Shen, Roman Chrast, Brian N Finck, Min You
Lipin-1 is a phosphatidate phosphohydrolase (PAP) required for the generation of diacylglycerol during glycerolipid synthesis, and exhibits dual functions in the regulation of lipid metabolism. Lipin-1 has been implicated in the pathogenesis of alcoholic liver disease (ALD). In the present study, we assessed lipin-1 function in myeloid cells in ALD using a myeloid cell-specific lipin-1 knockout (mLipin-1KO) mouse model. Utilizing the Gao-binge ethanol feeding protocol, matched mLipin-1KO mice and littermate loxP control (WT) mice were pair-fed with either an ethanol-containing diet or an ethanol-free diet (control)...
September 26, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27664199/effect-of-different-amylases-on-the-utilization-of-cornstarch-in-broiler-chickens
#17
Jianmin Yuan, Xingyu Wang, Dafei Yin, Maofei Wang, Xiaonan Yin, Zhao Lei, Yuming Guo
This study compared the effect of different amylases on the utilization of cornstarch in broiler chickens fed a corn-based diet. Three-day-old Arbor Acres plus male chickens were randomly divided into 7 treatments and fed a diet supplemented with different sources and concentrations of amylase: 1,500 U/kg and 3,000 U/kg α-1,4 amylase from Aspergillus oryzae (α-amylase A); 480 U/kg and 960 U/kg α-1,4 amylase from Bacillus subtilis (α-amylase B); 200 U/kg and 400 U/kg α-1,6 isoamylase from B...
September 23, 2016: Poultry Science
https://www.readbyqxmd.com/read/27639801/an-intestinal-microbiota-farnesoid-x-receptor-axis-modulates-metabolic-disease
#18
Frank J Gonzalez, Changtao Jiang, Andrew D Patterson
The gut microbiota is associated with metabolic diseases including obesity, insulin resistance, and nonalcoholic fatty liver disease, as shown by correlative studies and by transplant of microbiota from obese humans and mice into germ-free mice. Modification of the microbiota by treatment of high-fat diet (HFD)-fed mice with tempol or antibiotics resulted in decreased adverse metabolic phenotypes. This was owing to lower levels of the genera Lactobacillus and decreased bile salt hydrolase (BSH) activity. The decreased BSH resulted in increased levels of tauro-β-muricholic acid (MCA), a substrate of BSH and a potent farnesoid X receptor (FXR) antagonist...
September 14, 2016: Gastroenterology
https://www.readbyqxmd.com/read/27631241/recurrent-spontaneous-subserosal-hematoma-of-ileum-causing-intestinal-obstruction-in-a-patient-with-menkes-disease-a-case-report
#19
Shu-Chao Weng, Chyong-Hsin Hsu, Nien-Lu Wang, Shuan-Pei Lin, Chuen-Bin Jiang
BACKGROUND: Menkes disease (MD) is a disorder of copper metabolism due to ATP7A gene mutation that leads to severe copper deficiency. Deformed blood vessels can be found in many parts of the body, and intracranial hematoma is generally reported. METHODS: We report a Taiwanese boy with MD who had recurrent spontaneous subserosal hematoma of ileum presenting as intestinal obstruction, with the 2 episodes 23 months apart. The patient returned to the usual physical status after surgical removal of the hematoma...
September 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27611998/effects-of-early-intervention-with-sodium-butyrate-on-gut-microbiota-and-the-expression-of-inflammatory-cytokines-in-neonatal-piglets
#20
Jumei Xu, Xue Chen, Shuiqing Yu, Yong Su, Weiyun Zhu
Butyrate in the gut of animals has potential properties including regulating the innate immune, modulating the lipid metabolism, and protecting gut healthy. So far, only limited information on the impact of butyrate on the neonatal is available. This study aimed to investigate effects of oral administration of sodium butyrate (SB) on gut microbiota and the expression of inflammatory cytokine in neonatal piglets. Ten litters of crossbred newborn piglets were randomly allocated to the SB and control (CO) groups, each group consisted of five litters (replicates)...
2016: PloS One
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