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Bile acid malabsorption

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https://www.readbyqxmd.com/read/28899465/-clinical-features-and-myo5b-mutations-of-a-family-affected-by-microvillus-inclusion-disease
#1
Ying Cheng, Hong Liang, Na-Li Cai, Li Guo, Yu-Ge Huang, Yuan-Zong Song
Microvillus inclusion disease (MVID) is an autosomal recessive disorder caused by biallelic mutations in the MYO5B or STX3 gene. Refractory diarrhea and malabsorption are the main clinical manifestations. The aim of this study was to investigate the clinical features and MYO5B gene mutations of an infant with MVID. A 21-day-old female infant was referred to the hospital with the complaint of diarrhea for 20 days. On physical examination, growth retardation of the body weight and length was found along with moderately jaundiced skin and sclera...
September 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28898457/organic-solute-transporter-beta-slc51b-deficiency-in-two-brothers-with-congenital-diarrhea-and-features-of-cholestasis
#2
Mutaz Sultan, Anuradha Rao, Orly Elpeleg, Frédéric M Vaz, Bassam Y Abu Libdeh, Saul J Karpen, Paul A Dawson
Primary bile acid malabsorption (PBAM) is associated with congenital diarrhea, steatorrhea, and a block in the intestinal return of bile acids in the enterohepatic circulation. Mutations in the ileal Na(+) -dependent bile acid transporter (ASBT; SLC10A2) can cause PBAM, but do not appear to account for most familial cases. Another major transporter involved in the intestinal reclamation of bile acids is the heteromeric Organic Solute Transporter alpha-beta (OSTα-OSTβ; SLC51A-SLC51B), which exports bile acid across the basolateral membrane...
September 12, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28894048/the-role-of-bile-acids-in-the-pathogenesis-of-bowel-diseases
#3
Magdalena Panek-Jeziorna, Agata Mulak
Bile acids not only play a cardinal role in the digestion and absorption of fat and fat-soluble vitamins, but also significantly affect gastrointestinal motor, sensory and secretory functions, intestinal barrier permeability and the regulation of the inflammatory response. The results of recent studies have revealed complex interactions between bile acids and the gut microbiota. In addition, bile acids also play a role of signaling molecules regulating the activity of lipid and glucose metabolic pathways, as well as a role of ligands for transcription factors...
August 24, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28872123/ileectomy-induced-bile-overaccumulation-in-mouse-intestine
#4
Rongli Zhang, Jonathan W Ray, Mukesh K Jain, Shuxin Han
Intestinal resection is a common therapeutic approach for human diseases such as obesity, inflammatory bowel disease, Crohn's disease, and colon cancer that often results in severe short bowel syndrome-like adverse effects including bile acid diarrhea, dehydration, electrolyte disturbances, and nutrient malabsorption. Here we introduce a murine ileal resection model, termed ileectomy, to evaluate tissue communication and the maintenance of systemic homeostasis. After ileal resection, circulating blood is permanently devoid of the ileum-specific endocrine hormone fibroblast growth factor 15 (FGF15), which releases its endocrinal inhibition of bile acid synthesis in the liver...
August 21, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28828984/the-efficacy-and-potential-mechanisms-of-chinese-herbal-medicine-on-irritable-bowel-syndrome
#5
Zijuan Bi, Yu Zheng, Jianye Yuan, Zhaoxiang Bian
Irritable bowel syndrome (IBS) is one of the most common functional bowel disorders (FBD), which is characterized by recurrent abdominal pain, abdominal bloating/distention associated with defecation or changed bowel habits. Currently, there is no evidence of obvious anatomic or physiologic abnormalities on the routine diagnostic examinations. There are multiple pathological factors involved in IBS responsible for its heterogeneous nature, although the exact etiology and pathology of IBS are not well known and it is disappointed to develop biomarkers for this disorder...
August 21, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28765690/diarrhea-after-bariatric-procedures-diagnosis-and-therapy
#6
REVIEW
Yves M Borbély, Alice Osterwalder, Dino Kröll, Philipp C Nett, Roman A Inglin
Diarrhea after bariatric procedures, mainly those with malabsorptive elements including Roux-Y Gastric Bypass and Biliopancreatic Diversion, is common and an essential determinant of quality of life and micro- and macronutrient deficiencies. Bariatric surgery is the only sustainably successful method to address morbid obesity and its comorbidities, particularly gaining more and more importance in the specific treatment of diabetic patients. Approximately half a million procedures are annually performed around the world, with numbers expected to rise drastically in the near future...
July 14, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28739098/effects-of-bariatric-surgery-on-energy-homeostasis
#7
REVIEW
Wei Li, Denis Richard
Bariatric surgery represents the most efficient therapy for severe obesity. It reduces the size of fat stores or the amount of body fat gain. The bariatric surgery procedures currently used include Roux-en-Y gastric bypass and sleeve gastrectomy, which are the most commonly performed procedures. Other procedures are laparoscopic adjustable gastric banding and biliopancreatic diversion. The latter represents the most effective surgery for treatment of severe obesity as well as type 2 diabetes. Bariatric surgery reduces energy intake by restricting the size of the stomach reservoir and causing malabsorption, as in the case of biliopancreatic diversion...
August 2017: Canadian Journal of Diabetes
https://www.readbyqxmd.com/read/28727078/flaxseed-meal-and-oat-hulls-supplementation-modulates-growth-performance-blood-lipids-intestinal-fermentation-bile-acids-and-neutral-sterols-in-growing-pigs-fed-corn-soybean-meal-based-diets
#8
S P Ndou, E Kiarie, S J Thandapilly, M C Walsh, N Ames, C M Nyachoti
The present study was conducted to determine the effect of flaxseed meal and oat hulls supplementation on growth performance, apparent total tract digestibility (ATTD) of fat, serum lipids, and concentrations of VFA, bile acids (BA), and neutral sterols (NS) in digesta and feces in growing pigs. Forty-eight Genesus [(Duroc boar × Yorkshire-Landrace sows] barrows (25.0 ± 0.32 kg initial BW) were housed in pairs. Pigs were assigned to 1 of the 3 corn-soybean meal-based diets-a basal corn-soybean meal-containing diet (control), a flaxseed meal-containing diet (FM), or an oat hulls-containing diet (OH)-in a completely randomized design...
July 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28697823/-clinical-feature-and-genetic-analysis-of-a-family-affected-by-congenital-bile-acid-synthesis-defect-type-2-identification-of-2-novel-mutations-in-akr1d1-gene
#9
Ying Cheng, Li Guo, Mei Deng, Yuan-Zong Song
Congenital bile acid synthesis defect type 2 (CBAS2) is an autosomal recessive disorder caused by biallelic mutations of AKR1D1 gene, which encodes the Δ4-3-oxo-steroid 5β-reductase. Cholestatic jaundice is the main clinical manifestation, accompanied by malabsorption of fat and fat-soluble vitamins. This paper reported the clinical and genetic features of a CBAS2 patient definitely diagnosed by AKR1D1 genetic analysis. An 8-month-old male infant was referred to the hospital with the complaint of jaundiced skin and sclera over 7 months...
July 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28672432/pros-and-cons-while-looking-through-an-asian-window-on-the-rome-iv-criteria-for-irritable-bowel-syndrome-pros
#10
REVIEW
Uday C Ghoshal
A decade after Rome III, in 2016, Rome IV criteria were published. There are major differences between Rome IV and the earlier iteration, some of which are in line with Asian viewpoints. The clinical applicability of the Rome IV criteria of irritable bowel syndrome (IBS) in Asian perspective is reviewed here. Instead of considering functional gastrointestinal disorders (FGIDs) to be largely psychogenic, Rome IV suggested the importance of the gut over brain ("disorders of gut-brain interaction" not "brain-gut interaction")...
July 30, 2017: Journal of Neurogastroenterology and Motility
https://www.readbyqxmd.com/read/28594875/analytical-evaluation-of-three-enzymatic-assays-for-measuring-total-bile-acids-in-plasma-using-a-fully-automated-clinical-chemistry-platform
#11
Elisa Danese, Gian Luca Salvagno, Davide Negrini, Giorgio Brocco, Martina Montagnana, Giuseppe Lippi
BACKGROUND: Although the clinical significance of measuring bile acids concentration in plasma or serum has been recognized for long in patients with hepatobiliary disease and/or bile acid malabsorption, the reference separation techniques are expensive and mostly unsuitable for early diagnosis and for measuring large volumes of samples. Therefore, this study was aimed to evaluate the analytical performance of three commercial enzymatic techniques for measuring total bile acids in plasma using a fully-automated clinical chemistry platform...
2017: PloS One
https://www.readbyqxmd.com/read/28560290/farnesoid-x-receptor-agonist-treatment-alters-bile-acid-metabolism-but%C3%A2-exacerbates-liver-damage-in-a-piglet-model-of-short-bowel%C3%A2-syndrome
#12
Prue M Pereira-Fantini, Susan Lapthorne, Cormac G M Gahan, Susan A Joyce, Jenny Charles, Peter J Fuller, Julie E Bines
BACKGROUND & AIMS: Options for the prevention of short-bowel syndrome-associated liver disease (SBS-ALDs) are limited and often ineffective. The farnesoid X receptor (FXR) is a newly emerging pharmaceutical target and FXR agonists have been shown to ameliorate cholestasis and metabolic disorders. The aim of this study was to assess the efficacy of obeticholic acid (OCA) treatment in preventing SBS-ALDs. METHODS: Piglets underwent 75% small-bowel resection (SBS) or sham surgery (sham) and were assigned to either a daily dose of OCA (2...
July 2017: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28479494/gastric-mucosal-devitalization-reduces-adiposity-and-improves-lipid-and-glucose-metabolism-in-obese-rats
#13
Andreas Oberbach, Nadine Schlichting, Marco Heinrich, Yvonne Kullnick, Ulf Retschlag, Stefanie Lehmann, Mouen A Khashab, Anthony N Kalloo, Vivek Kumbhari
BACKGROUND AND AIMS: The gastric mucosa is an endocrine organ that regulates satiation pathways by expression of orexigenic and anorexigenic hormones. Vertical sleeve gastrectomy (VSG) excludes gastric mucosa and reduces gastric volume. Our study aimed to investigate the independent effects of altering gastric mucosa on obesity and its related comorbidities. METHODS: Gastric mucosa devitalization (GMD) of 70% of the stomach was achieved by argon plasma coagulation in a high-fat diet rat model and was compared with VSG and sham surgery...
May 4, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28475629/purification-and-characterization-of-recombinant-human-bile-salt-stimulated-lipase-expressed-in-milk-of-transgenic-cloned-cows
#14
Yuhang Wang, Fangrong Ding, Tao Wang, Wenjie Liu, Susanne Lindquist, Olle Hernell, Jianwu Wang, Jing Li, Ling Li, Yaofeng Zhao, Yunping Dai, Ning Li
Bile salt-stimulated lipase (BSSL) is a lipolytic digestive enzyme with broad substrate specificity secreted from exocrine pancreas into the intestinal lumen in all species and from the lactating mammary gland into the milk of some species, notably humans but not cows. BSSL in breast milk facilitates digestion and absorption of milk fat and promotes growth of small for gestational age preterm infants. Thus, purified recombinant human BSSL (rhBSSL) can be used for treatment of patients with fat malabsorption and expressing rhBSSL in the milk of transgenic cloned cows would therefore be a mean to meet a medical need...
2017: PloS One
https://www.readbyqxmd.com/read/28434196/role-of-gut-microbiota-bile-acids-and-their-crosstalk-in-the-effects-of-bariatric-surgery-on-obesity-and-type-2-diabetes
#15
Haijun Liu, Cheng Hu, Xueli Zhang, Weiping Jia
Type 2 diabetes mellitus is becoming increasingly prevalent worldwide and has become one of the greatest threats to global health. Bariatric surgery was initially designed to achieve weight loss and subsequently was noted to induce improvements or remission of type 2 diabetes. Currently, these bariatric operations such as Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG) are the most effective procedures for the treatment of obesity and type 2 diabetes mellitus worldwide. However, the specific mechanism mediating the beneficial effects of metabolic surgery has remained largely unknown...
April 23, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/28385289/use-of-a-novel-docosahexaenoic-acid-formulation-vs-control-in-a-neonatal-porcine-model-of-short-bowel-syndrome-leads-to-greater-intestinal-absorption-and-higher-systemic-levels-of-dha
#16
Camilia R Martin, Barbara Stoll, Joanne Cluette-Brown, Adesola C Akinkuotu, Oluyinka O Olutoye, Kathleen M Gura, Pratibha Singh, Munir M Zaman, Michael C Perillo, Mark Puder, Steven D Freedman, Doug Burrin
Infants with short bowel syndrome (SBS) are at high risk for malabsorption, malnutrition, and failure to thrive. The objective of this study was to evaluate in a porcine model of SBS, the systemic absorption of a novel enteral Docosahexaenoic acid (DHA) formulation that forms micelles independent of bile salts (DHA-ALT®). We hypothesized that enteral delivery of DHA-ALT® would result in higher blood levels of DHA compared to a control DHA preparation due to improved intestinal absorption. SBS was induced in term piglets through a 75% mid-jejunoileal resection and the piglets randomized to either DHA-ALT® or control DHA formulation (N=5 per group) for 4 postoperative days...
March 2017: Nutrition Research
https://www.readbyqxmd.com/read/28377401/cyp8b1-ablation-prevents-western-diet-induced-weight-gain-and-hepatic-steatosis-because-of-impaired-fat-absorption
#17
Enrico Bertaggia, Kristian K Jensen, Jose Castro-Perez, Yimeng Xu, Gilbert Di Paolo, Robin B Chan, Liangsu Wang, Rebecca A Haeusler
Bile acids (BAs) are cholesterol derivatives that regulate lipid metabolism, through their dual abilities to promote lipid absorption and activate BA receptors. However, different BA species have varying abilities to perform these functions. Eliminating 12α-hydroxy BAs in mice via Cyp8b1 knockout causes low body weight and improved glucose tolerance. The goal of this study was to determine mechanisms of low body weight in Cyp8b1(-/-) mice. We challenged Cyp8b1(-/-) mice with a Western-type diet and assessed body weight and composition...
August 1, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28292401/what-bariatric-surgery-can%C3%A2-teach-us-about-endoluminal-treatment-of-obesity%C3%A2-and-metabolic-disorders
#18
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/28288854/irinotecan-induced-bile-acid-malabsorption-is-associated-with-down-regulation-of-ileal-asbt-slc10a2-in-mice
#19
A-Xi Shi, Yan Zhou, Xiao-Yi Zhang, Yan-Shu Zhao, Hong-Yan Qin, Yan-Ping Wang, Xin-An Wu
Irinotecan, (CPT-11), an antitumor agent primarily used for the treatment of solid tumors, has often compromised clinical application due to the inducement of severe delay-onset diarrhea. Bile acid malabsorption (BAM) is widely accepted as the common cause of diarrhea. However, whether CPT-11-induced diarrhea has correlation with BAM is unknown. The aim of this study was to investigate the effect of CPT-11 on the bile acid homeostasis in mice. The mice were administrated with CPT-11 intravenously for four consecutive days...
March 10, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28237320/a-perspective-on-metabolic-surgery-from-a-gastroenterologist
#20
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)...
February 2017: Journal of Pharmacological Sciences
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