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Fructose malabsorption

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https://www.readbyqxmd.com/read/29433301/prevalence-of-fructose-malabsorption-in-patients-with-irritable-bowel-syndrome-after-excluding-small-intestinal-bacterial-overgrowth
#1
Kee Wook Jung, Myeognsook Seo, Young Hwan Cho, Young-Ok Park, So-Yoon Yoon, Jungbok Lee, Dong-Hoon Yang, In Ja Yoon, So Young Seo, Hyo Jeong Lee, Sang Hyoung Park, Kyung Jo Kim, Byong Duk Ye, Jeong-Sik Byeon, Hwoon-Yong Jung, Suk-Kyun Yang, Jin-Ho Kim, Seung-Jae Myung
Background/Aims: Fructose malabsorption (FM) mimics symptoms of irritable bowel syndrome (IBS), and its prevalence has increased. Diagnosing FM in IBS is challenging because of its overlap with small intestinal bacterial overgrowth (SIBO). We assessed the prevalence of FM by comparing patients with IBS with asymptomatic control individuals after excluding SIBO using the glucose hydrogen breath test (HBT). Methods: Patients diagnosed with IBS and asymptomatic control individuals were prospectively enrolled in the study...
February 13, 2018: Journal of Neurogastroenterology and Motility
https://www.readbyqxmd.com/read/29344585/hereditary-folate-malabsorption-due-to-a-mutation-in-the-external-gate-of-the-proton-coupled-folate-transporter-slc46a1
#2
Srinivas Aluri, Rongbao Zhao, Charlotte Lubout, Susanna M I Goorden, Andras Fiser, I David Goldman
Hereditary folate malabsorption (HFM) is an autosomal recessive disorder characterized by impaired intestinal folate absorption and impaired folate transport across the choroid plexus due to loss of function of the proton-coupled folate transporter (PCFT-SLC46A1). We report a novel mutation, causing HFM, affecting a residue located in the 11th transmembrane helix within the external gate. The mutant N411K-PCFT was stable, trafficked to the cell membrane, and had sufficient residual activity to characterize the transport defect and the structural requirements at this site for gate function...
January 9, 2018: Blood Advances
https://www.readbyqxmd.com/read/29230485/-importance-of-functional-diagnostics-in-gastroenterology
#3
REVIEW
M Hollenbach, A Hoffmeister, J Rosendahl, J Mössner
In this review article important and frequently used investigation methods for gastrointestinal functional diagnostics are presented. Some other rarely used special investigations are also explained. The hydrogen breath test is simple to carry out, ubiquitously available and enables the detection of lactose, fructose and sorbitol malabsorption. Furthermore, by the application of glucose, the test can be carried out when there is a suspicion of abnormal intestinal bacterial colonization and using lactulose for measuring small intestinal transit time...
December 11, 2017: Der Internist
https://www.readbyqxmd.com/read/29181545/non-celiac-gluten-sensitivity-people-without-celiac-disease-avoiding-gluten-is-it-due-to-histamine-intolerance
#4
REVIEW
Wolfgang J Schnedl, Sonja Lackner, Dietmar Enko, Michael Schenk, Harald Mangge, Sandra J Holasek
INTRODUCTION: Food intolerance/malabsorption is caused by food ingredients, carbohydrates (mainly lactose and fructose), proteins (gluten), and biogenic amines (histamine) which cause nonspecific gastrointestinal and extra-intestinal symptoms. Here we focus on possible etiologic factors of intolerance/malabsorption especially in people with non-celiac gluten sensitivity (NCGS) or the so-called people without celiac disease avoiding gluten (PWCDAG) and histamine intolerance. METHODS: Recognizing the recently described symptoms of NCGS (PWCDAG) we review correlations and parallels to histamine intolerance (HIT)...
November 27, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/29111202/intestinal-fructose-malabsorption-is-associated-with-increased-lactulose-fermentation-in-the-intestinal-lumen-of-patients-with-abdominal-pain
#5
Roberto Koity Fujihara Ozaki, Patrícia da Graça Leite Speridião, Ana Cristina Fontenele Soares, Mauro Batista de Morais
OBJECTIVE: To study fructose malabsorption in children and adolescents with abdominal pain associated with functional gastrointestinal disorders. As an additional objective, the association between intestinal fructose malabsorption and food intake, including the estimated fructose consumption, weight, height, and lactulose fermentability were also studied. METHODS: The study included 31 patients with abdominal pain (11 with functional dyspepsia, 10 with irritable bowel syndrome, and 10 with functional abdominal pain)...
October 28, 2017: Jornal de Pediatria
https://www.readbyqxmd.com/read/29046748/%C3%AE-thalassemia-minor-carbohydrate-malabsorption-and-histamine-intolerance
#6
Wolfgang J Schnedl, Michael Schenk, Sonja Lackner, Sandra J Holasek, Harald Mangge
Background: β-thalassemia minor is characterized by reduced β-haemoglobin chain synthesis and sometimes mild anaemia, although carriers of β-thalassemia minorare usually clinically asymptomatic.Nonspecific abdominal complaints may be caused by gastrointestinal carbohydrate malabsorption (lactose and fructose) and/or malabsorption of biogenic amines (histamine), or proteins (gluten). Objectives: We report on two patients with β-thalassemia minor suffering nonspecific abdominal symptoms due to a carbohydrate and histamine malabsorption...
October 2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/28965810/assessment-of-tryptophan-metabolism-and-signs-of-depression-in-individuals-with-carbohydrate-malabsorption
#7
Dietmar Enko, Helga Wagner, Gernot Kriegshäuser, Wolfgang Brandmayr, Gabriele Halwachs-Baumann, Wolfgang J Schnedl, Sieglinde Zelzer, Harald Mangge, Andreas Meinitzer
This prospective cross-sectional study aimed to investigate the potential association between primary-adult lactose malabsorption, fructose malabsorption, tryptophan (TRP) metabolism and the presence of depressive signs. Overall 251 patients, who were referred for lactase gene C/T-13910 polymorphism genotyping and fructose hydrogen/methane breath testing, were included. All participants filled out the Beck Depression Inventory (BDI II). Serum concentrations of tryptophan (TRP), kynurenine (KYN), kynuric acid (KYNA), and TRP competing amino acids (leucine, isoleucine, valine, phenylalanine, tyrosine) were measured by high-pressure liquid-chromatography...
September 22, 2017: Psychiatry Research
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
#8
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/28508559/two-weeks-of-repetitive-gut-challenge-reduces-exercise-associated-gastrointestinal-symptoms-and-malabsorption
#9
Atlanta Miall, Anthony Khoo, Christopher Rauch, Rhiannon Snipe, Vera Camões-Costa, Peter R Gibson, Ricardo J S Costa
Debilitating gastrointestinal symptoms are a common feature of endurance running, and may be exacerbated by and (or) limit the ability to tolerate carbohydrate intake during exercise. The study aimed to determine whether two weeks of repetitive gut-challenge during running can reduce exercise associated gastrointestinal symptoms and carbohydrate malabsorption. Endurance runners (n= 18) performed an initial gut-challenge trial (GC1) comprising 2 h running exercise at 60% VO2max (steady state) whilst consuming a formulated gel-disc containing 30 g carbohydrates (2:1 glucose-fructose, 10% w/v) every 20 min, followed by a 1 h running effort bout...
May 16, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28457529/fructose-malabsorption-in-people-with-and-without-gout-a-case-control-study
#10
Caitlin Batt, Niamh Fanning, Jill Drake, Christopher Frampton, Richard B Gearry, Lisa K Stamp
BACKGROUND: Higher fructose intake has been associated with hyperuricaemia and gout. Some individuals malabsorb fructose in the small intestine. The aims of this study were to determine the rate of fructose malabsorption and the effects of gout and fructose malabsorption on serum urate in people with and without gout. METHODS: A total of 100 people with gout (cases) were age and gender matched with one control without gout. After a low fructose diet, fructose malabsorption was measured using a hydrogen and methane breath test with a 35g fructose load...
March 22, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/28420945/controversies-and-recent-developments-of-the-low-fodmap-diet
#11
Peta Hill, Jane G Muir, Peter R Gibson
The low-fermentable oligo-, di-, and monosaccharide and polyol (FODMAP) diet is a 2-phased intervention, with strict reduction of all slowly absorbed or indigestible short-chain carbohydrates (ie, FODMAPs) followed by reintroduction of specific FODMAPs according to tolerance. The efficacy of the elimination phase of the FODMAP diet is well established, but the success of maintaining this diet has been shown in only a few observational studies. How the efficacy of the low-FODMAP diet compares with that of other therapies has received limited attention, but recent studies have shown this diet to be comparable or superior to diets that address eating style and choice of food as well as to gut hypnotherapy...
January 2017: Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28344797/poor-reproducibility-of-breath-hydrogen-testing-implications-for-its-application-in-functional-bowel-disorders
#12
Chu K Yao, Caroline J Tuck, Jacqueline S Barrett, Kim Ek Canale, Hamish L Philpott, Peter R Gibson
BACKGROUND: Limited data are available regarding the reproducibility of lactulose and fructose breath testing for clinical application in functional bowel disorders. OBJECTIVES: The purpose of this study was to investigate the reproducibility of lactulose and fructose breath hydrogen testing and assess symptom response to fructose testing. METHODS: Results were analysed from 21 patients with functional bowel disorder with lactulose breath tests and 30 with fructose breath tests who completed another test >2 weeks later...
March 2017: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/28323273/hydrogen-and-methane-based-breath-testing-in-gastrointestinal-disorders-the-north-american-consensus
#13
Ali Rezaie, Michelle Buresi, Anthony Lembo, Henry Lin, Richard McCallum, Satish Rao, Max Schmulson, Miguel Valdovinos, Salam Zakko, Mark Pimentel
OBJECTIVES: Breath tests (BTs) are important for the diagnosis of carbohydrate maldigestion syndromes and small intestinal bacterial overgrowth (SIBO). However, standardization is lacking regarding indications for testing, test methodology and interpretation of results. A consensus meeting of experts was convened to develop guidelines for clinicians and research. METHODS: Pre-meeting survey questions encompassing five domains; indications, preparation, performance, interpretation of results, and knowledge gaps, were sent to 17 clinician-scientists, and 10 attended a live meeting...
May 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28271632/the-role-of-insufficient-copper-in-lipid-synthesis-and-fatty-liver-disease
#14
REVIEW
Austin Morrell, Savannah Tallino, Lei Yu, Jason L Burkhead
The essential transition metal copper is important in lipid metabolism, redox balance, iron mobilization, and many other critical processes in eukaryotic organisms. Genetic diseases where copper homeostasis is disrupted, including Menkes disease and Wilson disease, indicate the importance of copper balance to human health. The severe consequences of insufficient copper supply are illustrated by Menkes disease, caused by mutation in the X-linked ATP7A gene encoding a protein that transports copper from intestinal epithelia into the bloodstream and across the blood-brain barrier...
April 2017: IUBMB Life
https://www.readbyqxmd.com/read/28244675/the-clinical-value-of-breath-hydrogen-testing
#15
REVIEW
Chu K Yao, Caroline J Tuck
Breath hydrogen testing for assessing the presence of carbohydrate malabsorption is frequently applied to refine dietary restrictions on a low fermentable carbohydrate (FODMAP) diet. Its application has also been extended for the detection of small intestinal bacterial overgrowth. Recently, several caveats of its methodology and interpretation have emerged. A review of the evidence surrounding its application in the management of patients with a functional bowel disorder was performed. Studies were examined to assess limitations of testing methodology, interpretation of results, reproducibility, and how this relates to clinical symptoms...
March 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28241431/the-role-of-carbohydrate-response-element-binding-protein-in-intestinal-and-hepatic-fructose-metabolism
#16
REVIEW
Katsumi Iizuka
Many articles have discussed the relationship between fructose consumption and the incidence of obesity and related diseases. Fructose is absorbed in the intestine and metabolized in the liver to glucose, lactate, glycogen, and, to a lesser extent, lipids. Unabsorbed fructose causes bacterial fermentation, resulting in irritable bowl syndrome. Therefore, understanding the mechanisms underlying intestinal and hepatic fructose metabolism is important for the treatment of metabolic syndrome and fructose malabsorption...
February 22, 2017: Nutrients
https://www.readbyqxmd.com/read/28177715/gut-training-the-impact-of-two-weeks-repetitive-gut-challenge-during-exercise-on-gastrointestinal-status-glucose-availability-fuel-kinetics-and-running-performance
#17
Ricardo J S Costa, Atlanta Miall, Anthony Khoo, Christopher Rauch, Rhiannon Snipe, Vera Camões-Costa, Peter Gibson
Due to gastrointestinal tract adaptability, the study aimed to determine the impact of gut-training protocol over 2 weeks on gastrointestinal status, blood glucose availability, fuel kinetics, and running performance. Endurance runners (n = 25) performed a gut-challenge trial (GC1), consisting of 2 h running exercise at 60% V̇O2max whilst consuming gel-discs containing 30 g carbohydrates (2:1 glucose/fructose, 10% w/v) every 20 min and a 1 h distance test. Participants were then randomly assigned to a carbohydrate gel-disc (CHO-S), carbohydrate food (CHO-F), or placebo (PLA) gut-training group for 2 weeks of repetitive gut-challenge intervention...
May 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/27774805/-fructose-and-fructose-intolerance
#18
György Miklós Buzás
Although fructose was discovered in 1794, it was realised in recent decades only that its malabsorption can lead to intestinal symptoms while its excessive consumption induces metabolic disturbances. Fructose is a monosaccharide found naturally in most fruits and vegetables. Dietary intake of fructose has gradually increased in the past decades, especially because of the consumption of high fructose corn syrup. With its 16.4 kg/year consumption, Hungary ranks secondly after the United States. Fructose is absorbed in the small intestine by facilitated transport mediated by glucose transporter proteins-2 and -5, and arrives in the liver cells...
October 2016: Orvosi Hetilap
https://www.readbyqxmd.com/read/27600184/adding-glucose-to-food-and-solutions-to-enhance-fructose-absorption-is-not-effective-in-preventing-fructose-induced-functional-gastrointestinal-symptoms-randomised-controlled-trials-in-patients-with-fructose-malabsorption
#19
C J Tuck, L A Ross, P R Gibson, J S Barrett, J G Muir
BACKGROUND: In healthy individuals, the absorption of fructose in excess of glucose in solution is enhanced by the addition of glucose. The present study aimed to assess the effects of glucose addition to fructose or fructans on absorption patterns and genesis of gastrointestinal symptoms in patients with functional bowel disorders. METHODS: Randomised, blinded, cross-over studies were performed in healthy subjects and functional bowel disorder patients with fructose malabsorption...
September 7, 2016: Journal of Human Nutrition and Dietetics: the Official Journal of the British Dietetic Association
https://www.readbyqxmd.com/read/27392639/nuclear-transit-study-in-children-with-chronic-faecal-soiling-after-hirschsprung-disease-hscr-surgery-has-revealed-a-group-with-rapid-proximal-colonic-treatment-and-possible-adverse-reactions-to-food
#20
Lefteris Stathopoulos, Sebastian K King, Bridget R Southwell, John M Hutson
BACKGROUND/PURPOSE: Long-term problems with faecal incontinence occur in up to 50 % of patients after pull-through for Hirschsprung disease (HSCR). The cause often remains unknown, leading to empirical treatments. Using nuclear transit study, we found some patients surprisingly had rapid proximal colonic transit, suspicious of occult diarrhoea. We aimed to assess whether these patients had unrecognized adverse reactions to food. METHODS: Patients (n = 10, all males, 9...
August 2016: Pediatric Surgery International
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