Interval sampling of end-expiratory hydrogen (H2) concentrations to quantify carbohydrate malabsorption by means of lactulose standards.

Abstract:

:Lactulose H2 breath tests are widely used for quantifying carbohydrate malabsorption, but the validity of the commonly used technique (interval sampling of H2 concentrations) has not been systematically investigated. In eight healthy adults we studied the reproducibility of the technique and the accuracy with which 5 g and 20 g doses of lactulose could be calculated from the H2 excretion after their ingestion by means of a 10 g lactulose standard. The influence of different lengths of the test period, different definitions of the baseline and the significance of standard meals and peak H2 concentrations was also studied. Regardless of baseline definition, estimates of malabsorption were most precise, if areas under the H2 concentration v time curves for four hours or more from the start of the excess H2 excretion were used. The median deviations from the expected values were 20-30% (5-60%, interquartile range). This corresponded to the deviation in reproducibility of the standard dose. We suggest that individual estimates of carbohydrate malabsorption by means of H2 breath tests should be interpreted with caution if tests of reproducibility are not incorporated. Both areas under curves and peak H2 concentrations seem valid for comparison of groups.

journal_name

Gut

journal_title

Gut

authors

Rumessen JJ,Hamberg O,Gudmand-Høyer E

doi

10.1136/gut.31.1.37

subject

Has Abstract

pub_date

1990-01-01 00:00:00

pages

37-42

issue

1

eissn

0017-5749

issn

1468-3288

journal_volume

31

pub_type

杂志文章

相关文献

GUT文献大全
  • Mitochondrial damage: a possible mechanism of the "topical" phase of NSAID induced injury to the rat intestine.

    abstract:BACKGROUND:The "topical" effect of non-steroidal anti-inflammatory drugs (NSAIDs) seems to be an important cause of NSAID induced gastrointestinal damage. AIM:To examine the possible mechanism of the "topical" phase of damage in the small intestine. METHODS:Electron microscopy and subcellular organelle marker enzyme ...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gut.41.3.344

    authors: Somasundaram S,Rafi S,Hayllar J,Sigthorsson G,Jacob M,Price AB,Macpherson A,Mahmod T,Scott D,Wrigglesworth JM,Bjarnason I

    更新日期:1997-09-01 00:00:00

  • Inhibitors of acid secretion can benefit gastric wound repair independent of luminal pH effects on the site of damage.

    abstract:BACKGROUND AND AIMS:The authors' goal was to measure pH at the gastric surface (pH₀) to understand how acid secretion affects the repair of microscopic injury to the gastric epithelium. METHODS:Microscopic gastric damage was induced by laser light, during confocal/two-photon imaging of pH-sensitive dyes (Cl-NERF, BCEC...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gutjnl-2011-300420

    authors: Demitrack ES,Aihara E,Kenny S,Varro A,Montrose MH

    更新日期:2012-06-01 00:00:00

  • Quantitation of faecal Fusobacterium improves faecal immunochemical test in detecting advanced colorectal neoplasia.

    abstract:OBJECTIVE:There is a need for an improved biomarker for colorectal cancer (CRC) and advanced adenoma. We evaluated faecal microbial markers for clinical use in detecting CRC and advanced adenoma. DESIGN:We measured relative abundance of Fusobacterium nucleatum (Fn), Peptostreptococcus anaerobius (Pa) and Parvimonas mi...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gutjnl-2016-312766

    authors: Wong SH,Kwong TNY,Chow TC,Luk AKC,Dai RZW,Nakatsu G,Lam TYT,Zhang L,Wu JCY,Chan FKL,Ng SSM,Wong MCS,Ng SC,Wu WKK,Yu J,Sung JJY

    更新日期:2017-08-01 00:00:00

  • Gut microbiome stability and resilience: elucidating the response to perturbations in order to modulate gut health.

    abstract::The human gut microbiome is a complex ecosystem, densely colonised by thousands of microbial species. It varies among individuals and depends on host genotype and environmental factors, such as diet and antibiotics. In this review, we focus on stability and resilience as essential ecological characteristics of the gut...

    journal_title:Gut

    pub_type: 杂志文章,评审

    doi:10.1136/gutjnl-2020-321747

    authors: Fassarella M,Blaak EE,Penders J,Nauta A,Smidt H,Zoetendal EG

    更新日期:2020-10-13 00:00:00

  • Omeprazole in the treatment of erosive oesophagitis refractory to high dose cimetidine and ranitidine.

    abstract::Forty five patients with refractory oesophagitis, defined as persisting erosive changes or ulceration despite a minimum of three months' treatment with cimetidine 3.2 g daily or ranitidine 0.9 g daily, were treated in an open trial with omeprazole 40 mg daily for up to eight weeks. Endoscopically defined healing was o...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gut.31.7.745

    authors: Bardhan KD,Morris P,Thompson M,Dhande DS,Hinchliffe RF,Jones RB,Daly MJ,Carroll NJ

    更新日期:1990-07-01 00:00:00

  • Efficacy of different regimens of interferon alfa-2b treatment in chronic hepatitis C.

    abstract::Four different dosage regimens of interferon (IFN) alfa-2b (3 million units (MU) three times weekly for three months, 3 MU three times weekly for six months, 6 MU two times weekly for six months, and 6 MU three times weekly for six months) were compared in patients with chronic hepatitis C. There was no significant di...

    journal_title:Gut

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1136/gut.34.2_suppl.s135

    authors: De Bac C,Grimaldi F,Clementi C,Duca F,Livoli D,Taliani G

    更新日期:1993-01-01 00:00:00

  • Neurotensin-like immunoreactivity after intestinal resection in the rat.

    abstract::Neurotensin is a tridecapeptide located mainly in the distal small intestine. The present study was carried out in order to investigate the neurotensin response after proximal small intestinal resection in the rat. After resection, the median plasma concentration of neurotensin like immunoreactivity (NTLI) was unchang...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gut.28.9.1107

    authors: Olsen PS,Pedersen JH,Poulsen SS,Yamashita Y,Kirkegaard P

    更新日期:1987-09-01 00:00:00

  • Indices of granulocyte activity in inflammatory bowel disease.

    abstract::In conditions with increased neutrophil production, the serum total vitamin B(12)-binding capacity (TBBC) is considered to correlate with the blood pool size of neutrophil granulocytes. The serum lysozyme, on the other hand, is a measure of neutrophil (and monocyte) turnover. The mean serum TBBC was significantly rais...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gut.15.12.953

    authors: Kane SP,Hoffbrand AV,Neale G

    更新日期:1974-12-01 00:00:00

  • Peptic ulcer, cimetidine, and motor neurone disease--a record linkage study.

    abstract::A previous cohort study suggested that there might be an association between use of cimetidine and motor neurone disease. The Oxford Record Linkage Study was used to explore this hypothesis. In the analysis the presence of a peptic ulcer in patients after 1976 was taken as a proxy for cimetidine (and ranitidine) use. ...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gut.34.12.1660

    authors: Vessey MP,Goldacre MJ,Seagroatt V,Yeates D

    更新日期:1993-12-01 00:00:00

  • Chronic painless pancreatitis.

    abstract::This paper describes four patients whose chief symptoms were steatorrhoea and loss of weight. Despite the absence of a history of abdominal pain investigations showed that these patients had chronic pancreatitis, which responded to medical treatment. The pathological findings in two of these cases and in six which cam...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gut.3.3.252

    authors: GOULSTON SJ,GALLAGHER ND

    更新日期:1962-09-01 00:00:00

  • Plexitis as a predictive factor of early postoperative clinical recurrence in Crohn's disease.

    abstract:BACKGROUND AND AIMS:A previous study suggested that the presence of myenteric plexitis in the proximal resection margins could be predictive of early endoscopic recurrence after ileocolonic or ileal resection for Crohn's disease (CD). The aim of the present study was to assess the predictive value of plexitis for early...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gut.2009.177782

    authors: Sokol H,Polin V,Lavergne-Slove A,Panis Y,Treton X,Dray X,Bouhnik Y,Valleur P,Marteau P

    更新日期:2009-09-01 00:00:00

  • Integrin-linked kinase regulates cell proliferation and tumour growth in murine colitis-associated carcinogenesis.

    abstract:BACKGROUND:Integrins are transmembrane cell surface receptors that mediate cell-cell and cell-matrix contacts. Integrin-linked kinase (ILK) is the binding partner of beta1 and beta3 integrins, and has been ascribed essential roles in development, angiogenesis and tumourigenesis. However, in vivo evidence for the latter...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gut.2007.142778

    authors: Assi K,Mills J,Owen D,Ong C,St Arnaud R,Dedhar S,Salh B

    更新日期:2008-07-01 00:00:00

  • Exocrine pancreatic insufficiency: accuracy and clinical value of the uniformly labelled 13C-Hiolein breath test.

    abstract:BACKGROUND AND AIMS:The 13C-Hiolein breath test (98% [U-13C] labelled long chain triglyceride mixture (highly labelled triolein) was evaluated as a non-invasive, non-radioactive test for exocrine pancreatic insufficiency. Accuracy and clinical validity were examined with reference to both the secretin pancreozymin test...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gut.39.5.668

    authors: Lembcke B,Braden B,Caspary WF

    更新日期:1996-11-01 00:00:00

  • Prednisolone absorption in acute colitis.

    abstract::Peak plasma levels were reduced after an oral dose of 40 mg prednisolone in six patients with severe acute colitis as compared with six normal subjects, though total absorption appeared to be similar; the findings suggest that prednisolone absorption was delayed in acute colitis. A dilutional fall in plasma albumin wa...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gut.21.1.49

    authors: Elliott PR,Powell-Tuck J,Gillespie PE,Laidlow JM,Lennard-Jones JE,English J,Chakraborty J,Marks V

    更新日期:1980-01-01 00:00:00

  • Liver microbubble transit time compared with histology and Child-Pugh score in diffuse liver disease: a cross sectional study.

    abstract:BACKGROUND:A previous pilot study showed that early arrival time of a microbubble in a hepatic vein is a sensitive indicator of cirrhosis. AIM:To see if this index can also grade diffuse liver disease. PATIENTS:Thirty nine fasted patients with histologically characterised disease were studied prospectively. Nine pati...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gut.52.8.1188

    authors: Blomley MJ,Lim AK,Harvey CJ,Patel N,Eckersley RJ,Basilico R,Heckemann R,Urbank A,Cosgrove DO,Taylor-Robinson SD

    更新日期:2003-08-01 00:00:00

  • Pneumatic dilatation in achalasia.

    abstract::To assess the value of pneumatic dilatation of the cardia, 63 patients with achalasia have undergone a total of 107 Rider-Moeller dilatations over the last six years. There was a marked improvement in swallowing immediately after dilatation in all but two patients, there were no deaths attributable to the procedure an...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gut.24.11.1020

    authors: Fellows IW,Ogilvie AL,Atkinson M

    更新日期:1983-11-01 00:00:00

  • The effects of corticotrophin and corticoids on secretion from denervated gastric pouches in dogs.

    abstract::The effects of corticotrophin and of cortisone, methyl prednisolone, and of aldosterone on the gastric secretion of dogs have been investigated. Juice was collected from dogs with denervated pouches under basal conditions and when stimulated with meat extract and with histamine. For each secretion the volume, viscosit...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gut.1.1.36

    authors: CLARKE SD,NEILL DW,WELBOURN RB

    更新日期:1960-03-01 00:00:00

  • The effect of heritability and host genetics on the gut microbiota and metabolic syndrome.

    abstract:OBJECTIVE:Metabolic syndrome (MetS) arises from complex interactions between host genetic and environmental factors. Although it is now widely accepted that the gut microbiota plays a crucial role in host metabolism, current knowledge on the effect of host genetics on specific gut microbes related to MetS status remain...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gutjnl-2015-311326

    authors: Lim MY,You HJ,Yoon HS,Kwon B,Lee JY,Lee S,Song YM,Lee K,Sung J,Ko G

    更新日期:2017-06-01 00:00:00

  • Trials and tribulations with artificial liver support.

    abstract::This paper reviews the experience gained over the past few years in two techniques of liver support, charcoal haemoperfusion and polyacrylonitrile membrane haemodialysis. Problems with charcoal haemoperfusion have centred around platelet aggregation and hypertension, and new carbon preparations with a variety of diffe...

    journal_title:Gut

    pub_type: 杂志文章,评审

    doi:10.1136/gut.19.6.578

    authors: Williams R

    更新日期:1978-06-01 00:00:00

  • Gastric emptying of two radiolabelled antacids.

    abstract::The rate of gastric emptying of two antacids, magaldrate and Maalox, was investigated using scintigraphy. Successful labelling of the antacids was carried out with 99mTc. The stability of the 99mTc-labelled antacids was satisfactory and there was no difference in antacid capacity between the labelled and unlabelled an...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gut.32.2.147

    authors: Monés J,Carrió I,Roca M,Estorch M,Calabuig R,Sainz S,Martinez-Duncker C,Vilardell F

    更新日期:1991-02-01 00:00:00

  • Inflammatory gradient in Barrett's oesophagus: implications for disease complications.

    abstract:INTRODUCTION:Barrett's oesophageal epithelium (BE) is clinically important due to the associated inflammatory and malignant complications which are unevenly distributed throughout the BE segment. As the immunoregulatory environment may influence disease manifestations, we analysed the inflammatory and cytokine response...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gut.51.3.316

    authors: Fitzgerald RC,Abdalla S,Onwuegbusi BA,Sirieix P,Saeed IT,Burnham WR,Farthing MJ

    更新日期:2002-09-01 00:00:00

  • Gut microbiome analysis as a tool towards targeted non-invasive biomarkers for early hepatocellular carcinoma.

    abstract:OBJECTIVE:To characterise gut microbiome in patients with hepatocellular carcinoma (HCC) and evaluate the potential of microbiome as non-invasive biomarkers for HCC. DESIGN:We collected 486 faecal samples from East China, Central China and Northwest China prospectively and finally 419 samples completed Miseq sequencin...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gutjnl-2017-315084

    authors: Ren Z,Li A,Jiang J,Zhou L,Yu Z,Lu H,Xie H,Chen X,Shao L,Zhang R,Xu S,Zhang H,Cui G,Chen X,Sun R,Wen H,Lerut JP,Kan Q,Li L,Zheng S

    更新日期:2019-06-01 00:00:00

  • Modulation of human dendritic cell phenotype and function by probiotic bacteria.

    abstract:BACKGROUND:"Probiotic" bacteria are effective in treating some inflammatory bowel diseases. However which bacteria confer benefit and mechanisms of action remain poorly defined. Dendritic cells, which are pivotal in early bacterial recognition, tolerance induction, and shaping of T cell responses, may be central in med...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gut.2003.037325

    authors: Hart AL,Lammers K,Brigidi P,Vitali B,Rizzello F,Gionchetti P,Campieri M,Kamm MA,Knight SC,Stagg AJ

    更新日期:2004-11-01 00:00:00

  • An ultrastructural study of the liver in Indian childhood cirrhosis with particular reference to the structure of cytoplasmic hyaline.

    abstract::Ultrastructural features of the liver in eight cases of Indian childhood cirrhosis, a fatal and elusive liver disease in India, have been described. Severe parenchymal damage, diffuse creeping fibrosis, and other light microscopic alterations, including the frequent presence of cytoplasmic hyaline, reported earlier ar...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gut.12.9.693

    authors: Roy S,Ramalingaswami V,Nayak NC

    更新日期:1971-09-01 00:00:00

  • Micrometastases: marker of metastatic potential or evidence of residual disease?

    abstract:BACKGROUND:Micrometastases within bone marrow have been shown to indicate a poor prognosis in patients with epithelial tumours. However, the degree to which micrometastases represent true residual disease or cell shedding and metastatic potential, is unclear. AIM:To explore whether micrometastases represent residual d...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gut.40.4.512

    authors: O'Sullivan GC,Collins JK,Kelly J,Morgan J,Madden M,Shanahan F

    更新日期:1997-04-01 00:00:00

  • The relevance of gastrointestinal fistulae in clinical practice: a review.

    abstract::Gastrointestinal fistulae most frequently occur as complications after abdominal surgery (75-85%) although they can also occur spontaneously--for example, in patients with inflammatory bowel disease (IBD) such as diverticulitis or following radiation therapy. Abdominal trauma can also lead to fistula formation althoug...

    journal_title:Gut

    pub_type: 杂志文章,评审

    doi:10.1136/gut.49.suppl_4.iv2

    authors: Falconi M,Pederzoli P

    更新日期:2001-12-01 00:00:00

  • Biomarkers for bile acid diarrhoea in functional bowel disorder with diarrhoea: a systematic review and meta-analysis.

    abstract::There is no universally available laboratory test to diagnose bile acid diarrhoea (BAD). OBJECTIVE:To conduct a systematic review and meta-analysis to identify a biomarker for idiopathic BAD in patients with functional bowel disorder (FBD) with diarrhoea. DESIGN:We searched multiple databases through 15 May 2015. Da...

    journal_title:Gut

    pub_type: 杂志文章,meta分析,评审

    doi:10.1136/gutjnl-2015-309889

    authors: Valentin N,Camilleri M,Altayar O,Vijayvargiya P,Acosta A,Nelson AD,Murad MH

    更新日期:2016-12-01 00:00:00

  • Feasibility of family based screening for colorectal neoplasia: experience in one general surgical practice.

    abstract::Relatives of patients with colorectal cancer have on average a two to threefold increased risk for developing bowel neoplasia although in some families the risk is much higher. This study examined the compliance for endoscopic screening and faecal occult blood testing among first degree relatives of patients with colo...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gut.34.1.96

    authors: Stephenson BM,Murday VA,Finan PJ,Quirke P,Dixon MF,Bishop DT

    更新日期:1993-01-01 00:00:00

  • Calcium palmitate and alpha-palmitic acid in gallstones.

    abstract::Calcium palmitate occurred in 20% of the gallstones studied in this laboratory by x-ray diffraction and was the most important crystalline constituent after the different forms of cholesterol and calcium carbonate. Only one calculus contained alpha-palmitic acid. The gallstones came from America, England, Australia, S...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gut.11.7.618

    authors: Sutor DJ

    更新日期:1970-07-01 00:00:00

  • Expression of cyclooxygenase 1 and 2 by human gastric endothelial cells.

    abstract:BACKGROUND:Non-steroidal anti-inflammatory drugs (NSAIDs) inhibit cyclooxygenase (COX) and cause gastric ulceration. NSAIDs also impair granulation tissue angiogenesis and healing of established gastric ulcers in humans. The mechanism whereby NSAIDs inhibit granulation tissue angiogenesis is unknown but may involve inh...

    journal_title:Gut

    pub_type: 杂志文章

    doi:10.1136/gut.45.4.529

    authors: Hull MA,Thomson JL,Hawkey CJ

    更新日期:1999-10-01 00:00:00