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https://www.readbyqxmd.com/read/28817707/microbiome-mediated-neutrophil-recruitment-via-cxcr2-and-protection-from-amebic-colitis
#1
Koji Watanabe, Carol A Gilchrist, Md Jashim Uddin, Stacey L Burgess, Mayuresh M Abhyankar, Shannon N Moonah, Zannatun Noor, Jeffrey R Donowitz, Brittany N Schneider, Tuhinur Arju, Emtiaz Ahmed, Mamun Kabir, Masud Alam, Rashidul Haque, Patcharin Pramoonjago, Borna Mehrad, William A Petri
The disease severity of Entamoeba histolytica infection ranges from asymptomatic to life-threatening. Recent human and animal data implicate the gut microbiome as a modifier of E. histolytica virulence. Here we have explored the association of the microbiome with susceptibility to amebiasis in infants and in the mouse model of amebic colitis. Dysbiosis occurred symptomatic E. histolytica infection in children, as evidenced by a lower Shannon diversity index of the gut microbiota. To test if dysbiosis was a cause of susceptibility, wild type C57BL/6 mice (which are innately resistant to E...
August 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28810248/antibiotic-susceptibility-and-molecular-characterization-of-escherichia-coli-o157-isolates-from-urinary-tract-infections
#2
Zonglan Xie, Ziqiang Dong, Ping Zhu, Lusheng Zhang, Xiaobo Chen, Chuanjiang Dong
BACKGROUND: Escherichia coli O157 is an important food-borne pathogen that can cause diarrhoea, hemorrhagic colitis, and hemolytic uraemic syndrome. Enterobacterial repetitive intergenic consensus sequence PCR (ERIC-PCR) and multilocus sequence typing (MLST) are good methods for molecular typing and the extensive use of antibiotics is a contributing factor to the increasing incidence of antimicrobial-resistant for these strains. OBJECTIVES: The aim of this study was to determine the prevalence, antimicrobial resistance, and genetic diversity of E...
August 16, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/28808878/role-of-intestinal-microbiome-in-american-ginseng-mediated-colon-cancer-protection-in-high-fat-diet-fed-aom-dss-mice
#3
C-Z Wang, W-H Huang, C-F Zhang, J-Y Wan, Y Wang, C Yu, S Williams, T-C He, W Du, M W Musch, E B Chang, C-S Yuan
OBJECTIVE: Chronic intestinal inflammation is a risk factor for colorectal cancer (CRC) initiation and development. Diets that are rich in Western style fats have been shown to promote CRC. This study was conducted to investigate the role of intestinal microbiome in American ginseng-mediated CRC chemoprevention in a mouse model. The population and diversity of enteric microbiome were evaluated after the ginseng treatment. METHODS: Using an azoxymethane (AOM)/dextran sulfate sodium (DSS)-induced gut inflammation and tumorigenesis mouse model, the effects of oral American ginseng on high fat diet-associated enteric pathology were determined...
August 14, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28805735/dietary-propolis-ameliorates-dextran-sulfate-sodium-induced-colitis-and-modulates-the-gut-microbiota-in-rats-fed-a-western-diet
#4
Kai Wang, Xiaolu Jin, Mengmeng You, Wenli Tian, Richard K Le Leu, David L Topping, Michael A Conlon, Liming Wu, Fuliang Hu
Propolis is an important hive product and considered beneficial to health. However, evidence of its potential for improving gut health is still lacking. Here we use rats to examine whether dietary supplementation with propolis could be used as a therapy for ulcerative colitis. Rats were fed with a Western style diet alone (controls) or supplemented with different amounts of Chinese propolis (0.1%, 0.2%, and 0.3%) to examine effects on acute colitis induced by 3% dextran sulphate sodium (DSS) in drinking water...
August 14, 2017: Nutrients
https://www.readbyqxmd.com/read/28797991/an-unusual-case-of-proctosigmoiditis-secondary-to-arteriovenous-fistulization
#5
Veljko Strjina, Scott R Kelley
Refractory chronic colitis presents a medical and surgical challenge, and underlying etiologies are diverse with potential for misclassification as inflammatory bowel disease. We present an unusual case of chronic proctosigmoiditis with rare vascular etiology. A 48-year-old Caucasian male presented with severe diarrhea, weight loss, and abdominal pain. Computed tomography (CT) suggested proctosigmoiditis. Colonoscopy and biopsy findings were non-specific but were suggestive of ischemic etiology and venous congestion...
August 9, 2017: Turkish Journal of Gastroenterology: the Official Journal of Turkish Society of Gastroenterology
https://www.readbyqxmd.com/read/28775365/sex-specific-regulation-of-immune-responses-by-ppars
#6
REVIEW
Hong-Jai Park, Je-Min Choi
The prevalence of autoimmune, infectious and metabolic diseases is different for men and women owing to the respective ability of their immune systems to respond to self and foreign antigens. Although several factors, including hormones and the X-chromosome, have been suggested to contribute to such sex-specific immune responses, the underlying factors remain poorly defined. Recent studies using peroxisome proliferator-activated receptor (PPAR) ligands and knockout mice have identified sex-dimorphic expression of PPARs, and have shown that the inhibitory functions of PPAR in T cells are substantially affected by the sex hormones...
August 4, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28760801/polyethylene-glycol-intestinal-lavage-in-addition-to-usual-antibiotic-treatment-for-severe-clostridium-difficile-colitis-a-randomised-controlled-pilot-study
#7
Greig McCreery, Philip M Jones, Biniam Kidane, Vanessa DeMelo, Tina Mele
INTRODUCTION: Clostridium difficile infections (CDI) are common, costly and potentially life threatening. Most CDI will respond to antibiotic therapy, but 3%-10% of all patients with CDI will progress to a severe, life-threatening course. Complete removal of the large bowel is indicated for severe CDI. However, the 30-day mortality following surgical intervention for severe CDI ranges from 20% to 70%. A less invasive approach using surgical faecal diversion and direct colonic lavage with polyethylene glycol (PEG) and vancomycin has demonstrated a relative mortality reduction of approximately 50%...
July 31, 2017: BMJ Open
https://www.readbyqxmd.com/read/28752563/differential-intestinal-anti-inflammatory-effects-of-lactobacillus-fermentum-and-lactobacillus-salivarius-in-dss-mouse-colitis-impact-on-micrornas-expression-and-microbiota-composition
#8
Alba Rodríguez-Nogales, Francesca Algieri, Jose Garrido-Mesa, Teresa Vezza, M Pilar Utrilla, Natalia Chueca, Federico Garcia, Mónica Olivares, M Elena Rodríguez-Cabezas, Julio Gálvez
SCOPE: To compare the intestinal anti-inflammatory effects of two probiotics Lactobacillus fermentum and Lactobacillus salivarius in mouse colitis, focusing on their impact on selected miRNAs and microbiota composition. METHODS AND RESULTS: Male C57BL/6J mice were randomly assigned to four groups (n = 10): non-colitic, DSS colitic and two colitic groups treated with probiotics (5 × 10(8) CFU/mouse/day). Both probiotics ameliorated macroscopic colonic damage. They improved the colonic expression of markers involved in the immune response, and the expression of miR-155 and miR-223...
July 28, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28743984/gut-microbiota-and-ibd-causation-or-correlation
#9
REVIEW
Josephine Ni, Gary D Wu, Lindsey Albenberg, Vesselin T Tomov
A general consensus exists that IBD is associated with compositional and metabolic changes in the intestinal microbiota (dysbiosis). However, a direct causal relationship between dysbiosis and IBD has not been definitively established in humans. Findings from animal models have revealed diverse and context-specific roles of the gut microbiota in health and disease, ranging from protective to pro-inflammatory actions. Moreover, evidence from these experimental models suggest that although gut bacteria often drive immune activation, chronic inflammation in turn shapes the gut microbiota and contributes to dysbiosis...
July 19, 2017: Nature Reviews. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28741097/distribution-and-phylogenetic-analysis-of-blastocystis-sp-subtypes-isolated-from-ibd-patients-and-healthy-individuals-in-iran
#10
H Mirjalali, M R Abbasi, N Naderi, Z Hasani, E S Mirsamadi, C R Stensvold, H Balaii, H Asadzadeh Aghdaei, M R Zali
Blastocystis is a single-celled intestinal parasite commonly found in humans and a broad range of animals all over the world. In humans, its role in health and disease remains unsettled. The aim of our study was to investigate the distribution of Blastocystis and Blastocystis subtypes (ST) in patients with inflammatory bowel disease (IBD) and control subjects. A total of 71 stool samples were collected from IBD patients, 69 and 2 of whom had ulcerative colitis (UC) and Crohn's Disease (CD), respectively. Moreover, 166 stool samples from healthy subjects were included as control samples...
July 25, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28740343/distinct-gut-microbiota-profiles-in-patients-with-primary-sclerosing-cholangitis-and-ulcerative-colitis
#11
Lukas Bajer, Miloslav Kverka, Martin Kostovcik, Peter Macinga, Jiri Dvorak, Zuzana Stehlikova, Jan Brezina, Pavel Wohl, Julius Spicak, Pavel Drastich
AIM: To characterize the gut bacterial microbiota of patients with primary sclerosing cholangitis (PSC) and ulcerative colitis (UC). METHODS: Stool samples were collected and relevant clinical data obtained from 106 study participants, 43 PSC patients with (n = 32) or without (n = 11) concomitant inflammatory bowel disease, 32 UC patients, and 31 healthy controls. The V3 and V4 regions of the 16S ribosomal RNA gene were sequenced on Illumina MiSeq platform to cover low taxonomic levels...
July 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28679372/fermented-herbal-formula-kiom-ma-128-protects-against-acute-colitis-induced-by-dextran-sodium-sulfate-in-mice
#12
Dong-Gun Kim, Mi-Ra Lee, Jae-Myung Yoo, Kwang-Il Park, Jin-Yeul Ma
BACKGROUND: Colitis is a well-known subtype of inflammatory bowel disease and is caused by diverse factors. Previous research has shown that KIOM-MA elicits anti-inflammatory and anti-allergic effects on various diseases. KIOM-MA-128, our novel herbal formula, was generated from KIOM-MA using probiotics to improve the therapeutic efficacy. We investigated whether KIOM-MA-128 has protective activity in a mouse model of acute colitis induced by dextran sodium sulfate (DSS). METHODS: Colitis was induced by DSS administered to ICR mice in drinking water...
July 5, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28667683/pouch-failures-following-ileal-pouch-anal-anastomosis-for-ulcerative-colitis
#13
Anders Mark-Christensen, Rune Erichsen, Søren Brandsborg, Frederik Rønne Pachler, Charlotte Buchard Nørager, Niels Johansen, Jørn Helmut Pachler, Ole Thorlacius-Ussing, Mie Dilling Kjaer, Niels Qvist, Louise Preisler, Jens Hillingsø, Jacob Rosenberg, Søren Laurberg
BACKGROUND: The ileal pouch-anal anastomosis is a procedure offered to patients with ulcerative colitis who opt for restoration of bowel continuity. The aim of this study was to determine the risk of pouch failure and ascertain risk factors associated with failure. METHOD: 1,991 patients with ulcerative colitis operated with ileal pouch-anal anastomosis in Denmark in the period 1980-2013 were included. Pouch failure was defined as excision of the pouch or presence of a stoma un-reversed within one year after its creation...
July 1, 2017: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
https://www.readbyqxmd.com/read/28662012/fatal-course-of-takotsubo-cardiomyopathy-in-a-female-with-recurrent-clostridium-difficile-infection
#14
Waldemar Elikowski, Małgorzata Małek-Elikowska, Monika Lisiecka, Iwona Mozer-Lisewska
Among diverse triggering factors of stress-induced takotsubo cardiomyopathy (TC), a viral or bacterial infection is rarely observed. Sepsis is an exception, regardless of the etiologic pathogen, in which case an excess of catecholamines may result in acute left ventricular dysfunction. TC precipitated by Clostridium difficile infection (CDI) has been reported only in two patients so far. A CASE REPORT: The authors describe another case of TC triggered this time by recurrent C. difficile colitis which occurred in a 72-yearold female...
June 23, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28661454/chlorogenic-acid-ameliorates-experimental-colitis-by-promoting-growth-of-akkermansia-in-mice
#15
Zhan Zhang, Xinyue Wu, Shuyuan Cao, Meghan Cromie, Yonghua Shen, Yiming Feng, Hui Yang, Lei Li
Chlorogenic acid (ChA)-one of the most abundant polyphenol compounds in the human diet-exerts anti-inflammatory activities. The aim of this study was to investigate the effect of ChA on gut microbiota in ulcerative colitis (UC). Colitis was induced by 2.5% dextran sulfate sodium (DSS) in C57BL/6 mice, which were on a control diet or diet with ChA (1 mM). The histopathological changes and inflammation were evaluated. Fecal samples were analyzed by 16S rRNA gene sequencing. ChA attenuated several effects of DSS-induced colitis, including weight loss, increased disease activity index, and improved mucosal damage...
June 29, 2017: Nutrients
https://www.readbyqxmd.com/read/28659484/case-control-comparison-of-enteric-viromes-in-captive-rhesus-macaques-with-acute-or-idiopathic-chronic-diarrhea
#16
Beatrix Kapusinszky, Amir Ardeshir, Usha Mulvaney, Xutao Deng, Eric Delwart
Diarrhea is the major cause of non-research associated morbidity and mortality affecting the supply of rhesus macaques and, potentially, their responses to experimental treatments. Idiopathic chronic diarrhea (ICD) in rhesus macaques also resembles ulcerative colitis, a form of human inflammatory bowel disease. To test for viral etiologies we characterized and compared the fecal virome from 32 healthy, 31 with acute diarrhea, and 29 with ICD animals. The overall fraction of eukaryotic viral reads was 0.063% for the healthy group, 0...
June 28, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28658154/16s-sequencing-and-functional-analysis-of-the-fecal-microbiome-during-treatment-of-newly-diagnosed-pediatric-inflammatory-bowel-disease
#17
James J Ashton, Catherine M Colquhoun, David W Cleary, Tracy Coelho, Rachel Haggarty, Imke Mulder, Akshay Batra, Nadeem A Afzal, R Mark Beattie, Karen P Scott, Sarah Ennis
The human microbiome is of considerable interest to pediatric inflammatory bowel disease (PIBD) researchers with 1 potential mechanism for disease development being aberrant immune handling of the intestinal bacteria. This study analyses the fecal microbiome through treatment in newly diagnosed PIBD patients and compares to cohabiting siblings where possible. Patients were recruited on clinical suspicion of PIBD before diagnosis. Treatment-naïve fecal samples were collected, with further samples at 2 and 6 weeks into treatment...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28601812/cardiovascular-and-type-2-diabetes-morbidity-and-all-cause-mortality-among-diverse-chronic-inflammatory-disorders
#18
Alex Dregan, Phil Chowienczyk, Mariam Molokhia
OBJECTIVES: The present study aimed to assess the relationship between inflammatory disorders with cardiometabolic diseases and mortality within a community-based population. METHODS: The UK Biobank data were used to conduct two investigations: a cross-sectional study to estimate cardiometabolic risk and a prospective cohort study to estimate mortality risk. Binary regression analyses were used to model the association between coronary heart disease, stroke, type 2 diabetes, venous thromboembolism and peripheral artery disease diagnoses with seven inflammatory disorders (eg, rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), psoriasis, ankylosing spondylitis (AS), systemic vasculitis, Crohn's disease and ulcerative colitis (UC))...
June 10, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28546791/fecal-microbiota-transplantation-from-clostridium-difficile-to-inflammatory-bowel-disease
#19
Robert J Gianotti, Alan C Moss
Fecal microbiota transplantation (FMT) has evolved from a case report in the medical literature to the basis of major innovations in the treatment of Clostridium difficile infection (CDI) and, potentially, inflammatory bowel disease (IBD). In the clinical setting, FMT was noted to significantly lower the risk of recurrent CDI, likely by increasing microbial diversity and altering the metabolic environment in the intestinal tract of recipients. In parallel, advances in the ability to quantify and characterize microbial communities in fecal samples led to the association of IBD with a state of intestinal dysbiosis...
April 2017: Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28545190/radiation-exposure-in-patients-with-inflammatory-bowel-disease-a-fourteen-year-review-at-a-tertiary-care-centre-in-malaysia
#20
Jeevinesh Naidu, Zhiqin Wong, Shanthi Palaniappan, Chai Soon Ngiu, Nur Yazmin Yaacob, Hamzaini Abdul Hamid, Marjanu Hikmah Elias, Norfilza Mohamad Mokhtar, Raja Affendi Raja Ali
Background and Aims: Patients with inflammatory bowel disease (IBD) are subjected to a large amount of ionizing radiation during the course of their illness. This may increase their risk of malignancy to a greater level than that due to the disease itself. In Caucasian patients with Crohn’s disease, this has been well documented and recommendations are in place to avoid high radiation imaging protocols. However, there are limited data available on radiation exposure in Asian IBD patients.We therefore sought to identify total radiation exposure and any differences between ethnically diverse ulcerative colitis (UC) and Crohn’s disease (CD) patients at our centre along with determining factors that may contribute to any variation...
April 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
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