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https://www.readbyqxmd.com/read/28110098/clinical-manifestations-of-helicobacter-pylori-negative-gastritis
#1
Seiji Shiota, Aaron P Thrift, Linda Green, Rajesh Shah, Gordana Verstovsek, Massimo Rugge, David Y Graham, Hashem B El-Serag
OBJECTIVES: There are data to suggest the existence of non-H. pylori gastritis. However, the risk factors and clinical course for H. pylori-negative gastritis remain unclear. We aimed to examine the prevalence and determinants of H. pylori-negative gastritis in a large multiethnic clinical population. METHOD: We conducted a cross-sectional study among patents scheduled for an elective esophagastroduodenoscopy or attending selected primary care clinics and eligible for screening colonoscopy at a single VA medical center...
January 18, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28110095/prophylaxis-for-stress-ulcers-with-proton-pump-inhibitors-is-not-associated-with-increased-risk-of-bloodstream-infections-in-the-intensive-care-unit
#2
Margot E Cohen, Joanne M Hathway, Hojjat Salmasian, Jianfang Liu, Melissa Terry, Julian A Abrams, Daniel E Freedberg
BACKGROUND & AIMS: Proton pump inhibitors (PPIs) have been associated with increased risk of infection, likely due to changes in intestinal epithelial permeability and the gastrointestinal microbiome. PPIs are frequently given to patients in the intensive care unit (ICU) to prevent stress ulcers. These patients are at risk for bloodstream infections (BSIs), so we investigated the relationship between PPI use and BSIs among patients in the ICU. METHODS: We performed a retrospective cohort study of adults (≥18 years) admitted to 1 of 14 ICUs within a hospital network of 3 large hospitals from 2008 through 2014...
January 18, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28106824/identification-of-the-muc2-promoter-as-a-strong-promoter-for-intestinal-gene-expression-through-generation-of-transgenic-quail-expressing-gfp-in-gut-epithelial-cells
#3
Rachel M Woodfint, Paula R Chen, Jinsoo Ahn, Yeunsu Suh, Seongsoo Hwang, Sang Suk Lee, Kichoon Lee
Identification of tissue- and stage-specific gene promoters is valuable for delineating the functional roles of specific genes in genetically engineered animals. Here, through the comparison of gene expression in different tissues by analysis of a microarray database, the intestinal specificity of mucin 2 (MUC2) expression was identified in mice and humans, and further confirmed in chickens by RT-PCR (reverse transcription-PCR) analysis. An analysis of cis-acting elements in avian MUC2 gene promoters revealed conservation of binding sites, within a 2...
January 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28106723/inhibition-of-autophagic-degradation-process-contributes-to-claudin-2-expression-increase-and-epithelial-tight-junction-dysfunction-in-tnf-%C3%AE-treated-cell-monolayers
#4
Cong Zhang, Junkai Yan, Yongtao Xiao, Yujie Shen, Jiazheng Wang, Wensong Ge, Yingwei Chen
Tight junction dysfunction plays a vital role in some chronic inflammatory diseases. Pro-inflammatory cytokines, especially tumor necrosis factor alpha (TNF-α), act as important factors in intestinal epithelial tight junction dysfunction during inflammatory conditions. Autophagy has also been shown to be crucial in tight junction function and claudin-2 expression, but whether autophagy has an effect on the change of claudin-2 expression and tight junction function induced by TNF-α is still unknown. To answer this question, we examined the expression of claudin-2 protein, transepithelial electrical resistance (TER), and permeability of cell monolayers, autophagy flux change, and lysosomal pH after TNF-α with or without PP242 treatment...
January 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28106271/mapping-the-intermediate-digestion-phases-of-human-healthy-intestinal-contents-from-distal-ileum-and-caecum-at-fasted-and-fed-state-conditions
#5
Thuy Tran, Dimitrios G Fatouros, Maria Vertzoni, Christos Reppas, Anette Müllertz
OBJECTIVES: To investigate at the ultrastructural level, the colloidal phases formed in the lumen of the distal ileum and caecum of healthy adults. METHODS: Cryogenic transmission electron microscopy (Cryo-TEM) was employed to image the intermediate colloidal phases of human intestinal contents collected from distal ileum and caecum of two healthy volunteers under fasted and fed state conditions. KEY FINDINGS: In samples collected both in the fasted and fed states, Cryo-TEM study revealed the presence of large spherical unilamellar and occasionally bi-lamellar and oligolamellar vesicles with diameters ranging from 50 to 200 nm for both volunteers in distal ileum and caecum...
January 20, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28105799/molecular-characterization-and-functional-analysis-of-a-piscidin-gene-in-large-yellow-croaker-larimichthys-crocea
#6
Jing Yang, Xin-Jiang Lu, Fang-Chao Chai, Jiong Chen
The piscidin family, which includes potent antimicrobial peptides with broad-spectrum activity, plays an important role in the innate immune system of fish. In this study, we cloned piscidin-5-like type 3 (Lcpis5lt3) in large yellow croaker (Larimichthys crocea). Multiple alignments with other known piscidins revealed amino acid conservation throughout the fish, especially at the signal peptide (22 amino acids). The phylogenetic tree confirmed that Lcpis5lt3 and large yellow croaker piscidin-5-like proteins were grouped together to form a branch...
November 18, 2016: Zool Res
https://www.readbyqxmd.com/read/28105351/experience-in-clinical-diagnosis-and-treatment-of-duodenal-tumors
#7
Zheng Wang, Zihai Ding, Shijie Huang, Shizhen Zhong
Small bowel tumors are rare tumors. Duodenal tumors occur more commonly compared with other small intestinal tumors. To summarize the clinicopathological features of duodenal tumors, in the present study 44 cases of duodenal tumors were collected, and the comparative clinicopathological characteristics between tumors of the ampulla and non-ampulla, the choice of treatment, and differences in the prognosis, were analyzed. The pathological type identified was predominantly adenocarcinoma; periampullary duodenal tumors were almost classifiable as adenocarcinoma in terms of their type...
December 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28104934/an-unusual-sigmoid-phytobezoar-in-a-patient-with-a-transplanted-kidney-a-case-report
#8
Paola Milillo, Angelo Pio Moffa, Vincenzo Bertozzi, Roberta Vinci, Luca Macarini
Bezoars are masses formed by the concretion of stomach contents or debris within the gastrointestinal tract. Bezoars are rare and account for only 0.4-4% of all cases of gastrointestinal obstruction and mainly occur in the stomach or small intestine. Intestinal obstruction caused by colonic bezoars is extremely rare. A 39-year-old man with a transplanted kidney came to the hospital because of abdominal pain, constipation, and distension. We performed an abdominal computed tomography scan and found an ovoid intraluminal mass with a mottled gas pattern in the distal sigmoid colon...
October 2016: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/28104586/synergy-of-glucagon-like-peptide-2-and-epidermal-growth-factor-co-administration-on-intestinal-adaptation-in-neonatal-piglets-with-short-bowel-syndrome
#9
David W Lim, Crystal L Levesque, Donna F Vine, Mitsuru Muto, Jacob R Koepke, Patrick N Nation, Pamela R Wizzard, Julang Li, David L Bigam, Patricia L Brubaker, Justine M Turner, Paul W Wales
BACKGROUND: Glucagon-like peptide-2 (GLP-2) and epidermal growth factor (EGF) treatment enhance intestinal adaptation. To determine whether these growth factors exert synergistic effects on intestinal growth and function, GLP-2 and EGF-containing media (EGF-cm) were administered, alone and in combination, in neonatal piglet with short bowel syndrome (SBS). METHODS: Neonatal Landrace/Large White piglets were block-randomized to 75% mid-intestinal (JI group) or distal-intestinal (JC group) resection or sham control, with 7-d infusion of saline (control), intravenous human GLP-2 (11 nmol/kg/day) alone, enteral EGF-cm (80 μg/kg/day) alone, or GLP-2 and EGF-cm in combination...
January 19, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28103291/the-gut-brain-axis-in-healthy-females-lack-of-significant-association-between-microbial-composition-and-diversity-with-psychiatric-measures
#10
Susan C Kleiman, Emily C Bulik-Sullivan, Elaine M Glenny, Stephanie C Zerwas, Eun Young Huh, Matthew C B Tsilimigras, Anthony A Fodor, Cynthia M Bulik, Ian M Carroll
OBJECTIVE: This study examined associations between the composition and diversity of the intestinal microbiota and measures of depression, anxiety, eating disorder psychopathology, stress, and personality in a group of healthy adult females. METHODS: Female participants (n = 91) ages 19-50 years with BMI 18.5-25 kg/m2 were recruited from central North Carolina between July 2014 and March 2015. Participants provided a single fecal sample and completed an online psychiatric questionnaire that included five measures: (i) Beck Anxiety Inventory; (ii) Beck Depression Inventory-II; (iii) Eating Disorder Examination-Questionnaire; (iv) Perceived Stress Scale; and (v) Mini International Personality Item Pool...
2017: PloS One
https://www.readbyqxmd.com/read/28101652/alteration-of-metabolomic-markers-of-amino-acid-metabolism-in-piglets-with-in-feed-antibiotics
#11
Chunlong Mu, Yuxiang Yang, Kaifan Yu, Miao Yu, Chuanjian Zhang, Yong Su, Weiyun Zhu
In-feed antibiotics have been used to promote growth in piglets, but its impact on metabolomics profiles associated with host metabolism is largely unknown. In this study, to test the hypothesis that antibiotic treatment may affect metabolite composition both in the gut and host biofluids, metabolomics profiles were analyzed in antibiotic-treated piglets. Piglets were fed a corn-soy basal diet with or without in-feed antibiotics from postnatal day 7 to day 42. The serum biochemical parameters, metabolomics profiles of the serum, urine, and jejunal digesta, and indicators of microbial metabolism (short-chain fatty acids and biogenic amines) were analyzed...
January 18, 2017: Amino Acids
https://www.readbyqxmd.com/read/28100603/digestion-resistant-dextrin-derivatives-are-moderately-digested-in-the-small-intestine-and-contribute-more-to-energy-production-than-predicted-from-large-bowel-fermentation-in-rats
#12
Takashi Kondo, Kei Handa, Tomomi Genda, Shingo Hino, Norihisa Hamaguchi, Tatsuya Morita
BACKGROUND: Digestion-resistant dextrin derivatives (DRDDs), including resistant maltodextrin (RM), polydextrose, and resistant glucan (RG), have been developed as low-energy foods. However, data on the resistance of DRDDs to small-intestinal digestion are scarce. OBJECTIVE: We sought to determine the site and extent of DRDD breakdown in the rat intestine and to predict its energy contributions. METHODS: In vitro small-intestinal resistance of DRDDs was evaluated by the AOAC method for dietary fiber measurement and by artificial digestion with the use of pancreatic α-amylase and brush-boarder membrane vesicles...
January 18, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28100486/c-jun-enhances-intestinal-epithelial-restitution-after-wounding-by-increasing-phospholipase-c-%C3%AE-1-transcription
#13
Peng-Yuan Wang, Shelley R Wang, Lan Xiao, Jie Chen, Jian-Ying Wang, Jaladanki N Rao
c-Jun is an AP-1 transcription factor and implicated in many aspects of cellular functions, but its exact role in the regulation of early intestinal epithelial restitution after injury remains largely unknown. Phospholipase C-γ1 (PLCγ1) catalyzes hydrolysis of phosphatidylinositol 4,5 biphosphate into the second messenger diacylglycerol and inositol 1,4,5 triphosphate, and coordinates Ca(2+) stores mobilization, and regulates cell migration and proliferation in response to stress. Here we reported that c-Jun up-regulates PLCγ1 expression and enhances PLCγ1-induced Ca(2+) signaling, thus promoting intestinal epithelial restitution after wounding...
January 18, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/28100298/description-of-two-novel-members-of-the-family-erysipelotrichaceae-ileibacterium-valens-gen-nov-sp-nov-and-dubosiella-newyorkensis-gen-nov-sp-nov-from-the-murine-intestine-and-emendation-to-the-description-of-faecalibacterium-rodentium
#14
Laura M Cox, Jiho Sohn, Kerin L Tyrrell, Diane M Citron, Paul A Lawson, Nisha B Patel, Tadasu Iizumi, Guillermo I Perez-Perez, Ellie J C Goldstein, Martin J Blaser
To better characterize murine intestinal microbiota, a large number (187) of Gram-positive staining, rod- and coccoid-shaped facultative and strictly anaerobic bacteria were isolated from small and large intestinal contents from mice. Based on 16S rRNA gene sequencing, a total 115 isolates formed three phylogenetically distinct clusters located within the family Erysipelotrichaceae. Group 1, as represented by strain NYU-BL-A3T, was most closely related to Allobaculum stercoricanis, with 16S rRNA gene similarity values of 87...
January 16, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28096432/effects-of-activity-genetic-selection-and-their-interaction-on-muscle-metabolic-capacities-and-organ-masses-in-mice
#15
Scott A Kelly, Fernando R Gomes, Erik M Kolb, Jessica L Malisch, Theodore Garland
Chronic voluntary exercise elevates total daily energy expenditure (DEE) and food consumption, potentially resulting in organ compensation supporting nutrient extraction/utilization. Additionally, species with naturally higher DEE often have larger processing organs, which may represent genetic differences and/or phenotypic plasticity. We tested for possible adaptive changes in organ masses of 4 replicate lines of house mice selected (37 generations) for high running (HR lines) compared with 4 non-selected control (C) lines...
January 17, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28096256/chronic-symptoms-in-a-representative-sample-of-community-dwelling-older-people-a-cross-sectional-study-in-switzerland
#16
Yves Henchoz, Christophe Büla, Idris Guessous, Nicolas Rodondi, René Goy, Maurice Demont, Brigitte Santos-Eggimann
OBJECTIVES: The burden of multiple diagnoses is well documented in older people, but less is known about chronic symptoms, many of which are even not brought to medical attention. This study aimed to determine the prevalence of chronic symptoms, their relationships with disability in basic activities of daily living (BADL) and quality of life (QoL), and their public health impact. DESIGN: A large cross-sectional population-based study. SETTING: Community in 2 regions of French-speaking Switzerland...
January 17, 2017: BMJ Open
https://www.readbyqxmd.com/read/28095668/recovery-of-oswaldotrema-nacinovici-from-whimbrels-aves-in-korea
#17
Young-Il Lee, Ok-Sik Chung, Min Seo
Adult specimens of Oswaldotrema nacinovici (Digenea: Philophthalmidae) have been first identified in Korea from 2 migratory birds (whimbrels, Numenius phaeopus) which were found dead at a western seashore area near Gunsan. The worms were recovered in the intestine of these birds. The worms were morphologically characterized by a large ventral sucker in comparison to the oral sucker, an external seminal vesicle extending beyond the posterior margin of the ventral sucker, and conspicuous uterine seminal receptacle...
December 2016: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28095464/molecular-control-of-innate-immune-response-to-pseudomonas-aeruginosa-infection-by-intestinal-let-7-in-caenorhabditis-elegans
#18
Lingtong Zhi, Yonglin Yu, Xueying Li, Daoyong Wang, Dayong Wang
The microRNA (miRNA) let-7 is an important miRNA identified in Caenorhabditis elegans and has been shown to be involved in the control of innate immunity. The underlying molecular mechanisms for let-7 regulation of innate immunity remain largely unclear. In this study, we investigated the molecular basis for intestinal let-7 in the regulation of innate immunity. Infection with Pseudomonas aeruginosa PA14 decreased let-7::GFP expression. Intestine- or neuron-specific activity of let-7 was required for its function in the regulation of innate immunity...
January 17, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28094284/the-composition-of-human-milk-and-infant-faecal-microbiota-over-the-first-three-months-of-life-a-pilot-study
#19
Kiera Murphy, David Curley, Tom F O'Callaghan, Carol-Anne O'Shea, Eugene M Dempsey, Paul W O'Toole, R Paul Ross, C Anthony Ryan, Catherine Stanton
Human milk contains a diverse array of bioactives and is also a source of bacteria for the developing infant gut. The aim of this study was to characterize the bacterial communities in human milk and infant faeces over the first 3 months of life, in 10 mother-infant pairs. The presence of viable Bifidobacterium and Lactobacillus in human milk was also evaluated. MiSeq sequencing revealed a large diversity of the human milk microbiota, identifying over 207 bacterial genera in milk samples. The phyla Proteobacteria and Firmicutes and the genera Pseudomonas, Staphylococcus and Streptococcus were the predominant bacterial groups...
January 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28093196/a-prospective-single-centre-pilot-evaluation-of-a-serum-calprotectin-assay-in-unselected-gi-patients
#20
Rebecca K McCann, Karen Smith, Daniel R Gaya
BACKGROUND: Whilst C-reactive protein (CRP) is an established serum marker of inflammation, its use in gastroenterology has been limited by its poor sensitivity and specificity for GI disease. Faecal calprotectin (FC) has been adopted into mainstream GI practice as a sensitive but non-specific marker of intestinal inflammation. However, stool samples collection for FC can be challenging and the possibility of utilising a sensitive and specific serum biomarker of intestinal inflammation in luminal gastroenterology is an attractive prospect...
January 16, 2017: Clinical Biochemistry
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