Search results for "digestive"
showing 10 items of 2631 documents
Occurrence of rhizobia in the gut of the higher termite Nasutitermes nigriceps
2006
Wood-eating termites feed on a diet highly deficient in nitrogen. They must complement their diet with the aid of nitrogen-fixing bacteria. Nitrogen fixation in the gut has been demonstrated, but information about nitrogen-fixing bacteria in pure culture is scarce. From the higher termite Nasutitermes nigriceps the symbiotic bacterial strain M3A was isolated, which thrives in the hindgut contents. The Gram-negative strain exhibited similarities to the species of the genus Ensifer (including Sinorhizobium) on the basis of morphological and physiological/biochemical features. The 16S rRNA gene analysis showed the highest sequence similarity of the isolate M3A to Ensifer adhaerens (>99%; ATCC …
In vitro and in vivo sulfate reduction in the gut contents of the termite Mastotermes darwiniensis and the rose-chafer Pachnoda marginata.
2005
Sulfate-reducing bacteria (SRB) from termites have been assigned to the genus Desulfovibrio. Desulfovibrio intestinalis lives in the gut of the Australian termite Mastotermes darwiniensis. For the first time we were able to enrich and identify a sulfate-reducing bacterium from the gut of the rose-chafer Pachnoda marginata, which showed the highest 16S rDNA sequence identity (93%) to Desulfovibrio intestinalis and Desulfovibrio strain STL1. Compared to Mastotermes darwiniensis (1x10(7) cells of SRB per ml gut contents), sulfate-reducing bacteria occurred in higher numbers in the gut contents of Pachnoda marginata reaching cell titers of up to 2x10(8) cells per ml gut contents. In vitro sulfa…
Preventive strategies and factors associated with surgically treated necrotising enterocolitis in extremely preterm infants: an international unit su…
2019
ObjectivesTo compare necrotising enterocolitis (NEC) prevention practices and NEC associated factors between units from eight countries of the International Network for Evaluation of Outcomes of Neonates, and to assess their association with surgical NEC rates.DesignProspective unit-level survey combined with retrospective cohort study.SettingNeonatal intensive care units in Australia/New Zealand, Canada, Finland, Israel, Spain, Sweden, Switzerland and Tuscany (Italy).PatientsExtremely preterm infants born between 240to 286weeks’ gestation, with birth weights<1500 g, and admitted between 2014–2015.ExposuresNEC prevention practices (probiotics, feeding, donor milk) using responses of an o…
Endoscopic confocal imaging.
2005
In vivo fluorescence endomicroscopy is a newly developed diagnostic tool enabling virtual in vivo histology of the mucosal layer during ongoing endoscopy. This review summarizes currently available data about the technique and clinical use of confocal endomicroscopy. Indications discussed include colorectal cancer evaluation, ulcerative colitis and surveillance, Barrett's esophagus, and detection of Helicobacter pylori infection in vivo.
Digestive Neuroendocrine Neoplasms (NEN): French Intergroup clinical practice guidelines for diagnosis, treatment and follow-up (SNFGE, GTE, RENATEN,…
2020
Abstract Introduction This document is a summary of the French Intergroup guidelines regarding the management of digestive neuroendocrine neoplasms (NEN) published in February 2020 ( www.tncd.org ). Methods All French medical societies involved in the management of NEN took part in this work. Recommendations were graded into four categories (A, B, C or D), according to the level of evidence found in the literature until May 2019. Results The management of NEN is challenging because of their heterogeneity and the increasing complexity of diagnostic and therapeutic procedures. Pathological analysis is required for their diagnostic and prognostic characterization, which mainly relies on differ…
Adipokines and Endotoxemia Correlate with Hepatic Steatosis in Non-Alcoholic Fatty Liver Disease (NAFLD)
2020
(1) Background: The etiology of non-alcoholic fatty liver disease (NAFLD) is multifactorial. Dietary composition has been implicated as a factor modulating intestinal barrier and could affect disease severity. The aim of this study was to evaluate dietary intake and markers of intestinal permeability in patients with NAFLD. (2) Methods: We enrolled 63 patients with NAFLD and compared them to age-matched controls. (3) Results: body mass index (BMI) and leptin to adiponectin ratio&mdash
Alkylresorcinol Metabolites in Urine and Plasma as Potential Biomarkers of Rye and Wheat Fiber Consumption in Prostate Cancer Patients and Controls
2015
Alkylresorcinols (ARs) are phytochemicals mainly associated with rye/wheat bran. Plasma ARs and their plasma and urine metabolites are considered as biomarkers for whole-grain rye/wheat intake. However ARs metabolite day and night variations have not been studied in prostate cancer patients yet. We investigated ARs metabolites 3, 5-dihydroxy-benzoic acid (DHBA), and 3-(3, 5-dihydroxyphenyl)-1-propanoic acid (DHPPA) in urine and plasma in prostate cancer patients and in control group. DHPPA in 12-h overnight urine correlated with the intake of rye bread and bread fiber across short time periods (3 days). Plasma DHPPA concentration was significantly greater in the prostate cancer group than i…
Monotonous consumption of fibre-enriched bread at breakfast increases satiety and influences subsequent food intake
2012
Research report; International audience; This study aimed to observe the influence of the monotonous consumption of two types of fibre-enriched bread at breakfast on hedonic liking for the bread, subsequent hunger and energy intake. Two groups of unrestrained normal weight participants were given either white sandwich bread (WS) or multigrain sandwich bread (MG) at breakfast (the sensory properties of the WS were more similar to the usual bread eaten by the participants than those of the MG). In each group, two 15-day cross-over conditions were set up. During the experimental condition the usual breakfast of each participant was replaced by an isocaloric portion of plain bread (WS or MG). D…
Evaluation and management of hemorrhoids: Italian society of colorectal surgery (SICCR) consensus statement
2015
Hemorrhoids are one of the most common medical and surgical diseases and the main reason for a visit to a coloproctologist. This consensus statement was drawn up by the Italian society of colorectal surgery in order to provide practice parameters for an accurate assessment of the disease and consequent appropriate treatment. The authors made a careful search in the main databases (MEDLINE, PubMed, Embase and Cochrane), and all results were classified on the basis of the grade of recommendation (A-C) of the American College of Chest Physicians.
Influence of substrate oxidation on the reward system, no role of dietary fibre.
2011
International audience; It has been suggested that a high intake of dietary fibre helps regulate energy intake and satiety. The present study aimed to examine whether dietary fibre influenced the liking and wanting components of the food reward system, the metabolic state or subsequent intake. Five sessions involving 32 normal-weight subjects (16 men and 16 women, 30.6 ± 7.6 year) were held. The sessions differed in the composition of the bread eaten during breakfasts (dietary fibre content varied from 2.4 to 12.8 g/100 g). Several factors such as the palatability, weight, volume, energy content and macronutrient composition of the breakfasts were adjusted. Energy expenditure, the respirato…