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https://www.readbyqxmd.com/read/29678910/serotype-diversity-and-antimicrobial-resistance-among-salmonella-enterica-isolated-from-patients-at-an-equine-referral-hospital
#1
I M Leon, S D Lawhon, K N Norman, D S Threadgill, N Ohta, J Vinasco, H M Scott
Although Salmonella enterica can produce life-threatening colitis in horses, certain serotypes are more commonly associated with clinical disease. Our aim was to evaluate the proportional morbidity attributed to different serotypes, as well as phenotypic and genotypic antimicrobial resistance (AMR) of Salmonella isolated from patients at an equine referral hospital in the southern United States. Two-hundred-fifty-five Salmonella isolates were obtained from clinical samples of patients admitted to the hospital between 2007 and 2015...
April 20, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29651370/effect-of-the-specific-carbohydrate-diet-on-the-microbiome-of-a-primary-sclerosing-cholangitis-and-ulcerative-colitis-patient
#2
Alanna Dubrovsky, Christopher L Kitts
A 20-year-old female was diagnosed with ulcerative colitis (UC) at age 14 and primary sclerosing cholangitis (PSC) at age 16. The PSC was successfully treated with high doses of oral vancomycin; however, the UC was more difficult to manage. After many drug treatments failed to treat the UC, the patient began following the specific carbohydrate diet (SCD). This report documents fecal microbiome changes resulting from following the SCD for two weeks. The DNA extracted from fecal samples was subjected to 16S rRNA gene sequencing to quantify bacterial species abundance...
February 9, 2018: Curēus
https://www.readbyqxmd.com/read/29615776/dysbiosis-of-the-salivary-microbiota-in-pediatric-onset-primary-sclerosing-cholangitis-and-its-potential-as-a-biomarker
#3
Kentaro Iwasawa, Wataru Suda, Tomoyuki Tsunoda, Manari Oikawa-Kawamoto, Shuichiro Umetsu, Lena Takayasu, Ayano Inui, Tomoo Fujisawa, Hidetoshi Morita, Tsuyoshi Sogo, Masahira Hattori
Primary sclerosing cholangitis (PSC) is a liver disease known for its frequent concurrence with inflammatory bowel disease. Dysbiosis of the gut microbiota in PSC was reported in several studies, but the microbiological features of the salivary microbiota in PSC have not been established. Here we compared the salivary microbial communities of 24 pediatric-onset PSC patients, 16 age-matched ulcerative colitis (UC) patients, and 24 healthy controls (HCs) by analyzing the bacterial 16S rRNA gene sequence data...
April 3, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29567622/th9-lymphocytes-and-functions-of-interleukin-9-with-the-focus-on-ibd-pathology
#4
REVIEW
Krzysztof Matusiewicz, Barbara Iwańczak, Małgorzata Matusiewicz
The work presents the newest knowledge on a new phenotype of T helper lymphocytes (Th9) and on Interleukin 9 (IL-9). Processes leading to transformation of naïve T lymphocyte into Th9 lymphocytes are presented, including the role of IL-4 and TGFβ signaling. Involvement of transcription factor network in production of IL-9 is described. Other cells capable of expressing IL-9 and secreting IL-9 are portrayed. Diversity of IL-9 effects caused by activation of IL-9 receptors on various types of cells is presented...
March 19, 2018: Advances in Medical Sciences
https://www.readbyqxmd.com/read/29562278/network-medicine-a-mandatory-next-step-for-inflammatory-bowel-disease
#5
Heitor S P de Souza, Claudio Fiocchi
Despite unquestionable progress in the management of inflammatory bowel disease (IBD) and the much improved clinical results achievable today in Crohn's disease (CD) and ulcerative colitis (UC) patients, the overall therapeutic outcome remains far from optimal. The main reason of this partial success is that all current medications only block individual components of a highly complex disease process that results from the integration of multiple and incompletely identified pathogenic components. Thus, if further progress is to be achieved in IBD therapeutics and we want to move from the current success rate to nearly 100%, bold new ideas must be entertained and new approaches put into practice...
March 19, 2018: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/29546052/effects-of-melatonin-on-intestinal-microbiota-and-oxidative-stress-in-colitis-mice
#6
Dan Zhu, Yong Ma, Sujuan Ding, Hongmei Jiang, Jun Fang
This study investigated the antioxidant capacity and intestinal bacteria community in a mouse model of DSS-induced colitis. Twenty mice were randomly assigned to two treatments: mice with colitis induced by 5% DSS (DSS group) and mice with colitis induced by 5% DSS that also received melatonin treatment (MEL group). The DSS group showed significantly less antioxidant capability than the MEL group, but the two groups did not differ significantly in terms of diversity index (Shannon and Simpson), bacterial culture abundance (Chao1 and ACE), and coverage (Good's coverage estimator)...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29532517/roseburia-intestinalis-alleviates-experimental-colitis-pathology-by-inducing-anti-inflammatory-responses
#7
Zhaohua Shen, Changxin Zhu, Yongsheng Quan, Jinming Yang, Wei Yuan, Zhenyu Yang, Shuai Wu, Weiwei Luo, Bei Tan, Xiaoyan Wang
BACKGROUND AND AIM: To elucidate the anti-inflammatory effect and mechanism of Roseburia intestinalis (R.intestinalis) in Crohn's disease (CD). METHODS: 16S-rRNA genome sequencing technique is used to detect the characteristics of intestinal microbiota in untreated CD patients and healthy controls. Then we investigate the effects of R.intestinalis on disease activity index (DAI) score, intestinal pathology, the differentiation of Treg cells and the expressions of TSLP, TGF-β, IL-10 by using TNBS colitis models...
March 12, 2018: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29531070/cd96-expression-determines-the-inflammatory-potential-of-il-9-producing-th9-cells
#8
Katarina Stanko, Christina Iwert, Christine Appelt, Katrin Vogt, Julia Schumann, Franziska Janina Strunk, Stefanie Ahrlich, Stephan Schlickeiser, Chiara Romagnani, Karsten Jürchott, Christian Meisel, Gerald Willimsky, Anja A Kühl, Birgit Sawitzki
Recent findings demonstrated proinflammatory functions of interleukin (IL)-9-producing T helper type (Th) 9 cells in the pathogenesis of intestinal bowel diseases (IBDs). However, also antiinflammatory properties have been ascribed to Th9 cells, pointing to a functional heterogeneity. To dissect the specific expression pattern and, especially, diversity of murine antigen-specific Th9 cells, we applied single cell transcription profiling. Th9 cells displayed reduced expression of typical activation markers, such as Cd40 ligand and Cd96 , whereas expression of Cd25 and Cd83 was increased compared with other Th subsets...
March 12, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29462845/a-comparison-of-the-microbial-community-structure-between-inflamed-and-non-inflamed-sites-in-patients-with-ulcerative-colitis
#9
Atsushi Hirano, Junji Umeno, Yasuharu Okamoto, Hiroki Shibata, Yoshitoshi Ogura, Tomohiko Moriyama, Takehiro Torisu, Shin Fujioka, Yuta Fuyuno, Yutaka Kawarabayasi, Takayuki Matsumoto, Takanari Kitazono, Motohiro Esaki
BACKGROUND AND AIM: The gut microbiota is suggested to play an important role in the pathogenesis of ulcerative colitis (UC). However, inter-individual and spatial variations hamper the identification of UC-related changes. We thus investigated paired mucosa-associated microbiota obtained from both inflamed and non-inflamed sites of UC patients and corresponding sites of non-IBD controls. METHODS: Mucosal biopsies of both inflamed and non-inflamed sites were obtained from 14 patients with active UC of the left-sided or proctitis type...
February 20, 2018: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29422809/fecal-microbiota-transplantation-for-recurrent-clostridium-difficile-infection-in-a-patient-with-ulcerative-colitis
#10
Kosaku Nanki, Shinta Mizuno, Katsuyoshi Matsuoka, Keiko Ono, Shinya Sugimoto, Hiroki Kiyohara, Mari Arai, Moeko Nakashima, Kozue Takeshita, Keiichiro Saigusa, Mitsutoshi Senoh, Tadashi Fukuda, Makoto Naganuma, Haru Kato, Wataru Suda, Masahira Hattori, Takanori Kanai
Fecal microbiota transplantation (FMT) has been reported as a safe and effective therapy in patients with refractory and recurrent Clostridium difficile infection (CDI). FMT has also been reported as a promising therapy in patients with ulcerative colitis (UC). Both, CDI and UC, are believed to be caused by dysbiosis, such as altered compositions or decreased diversity of the intestinal microbiota. This report describes a patient with UC in remission with a second recurrent episode of CDI, who was treated with FMT...
January 2018: Intestinal Research
https://www.readbyqxmd.com/read/29404425/gut-microbiota-offers-universal-biomarkers-across-ethnicity-in-inflammatory-bowel-disease-diagnosis-and-infliximab-response-prediction
#11
Youlian Zhou, Zhenjiang Zech Xu, Yan He, Yunsheng Yang, Le Liu, Qianyun Lin, Yuqiang Nie, Mingsong Li, Fachao Zhi, Side Liu, Amnon Amir, Antonio González, Anupriya Tripathi, Minhu Chen, Gary D Wu, Rob Knight, Hongwei Zhou, Ye Chen
Gut microbiota dysbiosis contributes to the onset and perpetuation of inflammatory bowel disease (IBD). Given that gut microbiotas vary across geography and ethnicity, it remains obscure whether any universal microbial signatures for IBD diagnosis and prognosis evaluation exist irrespective of populations. Here we profiled the fecal microbiota of a series of Chinese IBD patients and combined them with two Western IBD cohorts, PRISM and RISK, for meta-analyses. We found that the gut microbial alteration patterns in IBD are similar among Chinese and Westerners...
January 2018: MSystems
https://www.readbyqxmd.com/read/29385143/longitudinal-microbiome-analysis-of-single-donor-fecal-microbiota-transplantation-in-patients-with-recurrent-clostridium-difficile-infection-and-or-ulcerative-colitis
#12
Michael Mintz, Shanawaj Khair, Suman Grewal, Joseph F LaComb, Jiyhe Park, Breana Channer, Ramona Rajapakse, Juan Carlos Bucobo, Jonathan M Buscaglia, Farah Monzur, Anupama Chawla, Jie Yang, Charlie E Robertson, Daniel N Frank, Ellen Li
BACKGROUND: Studies of colonoscopic fecal microbiota transplant (FMT) in patients with recurrent CDI, indicate that this is a very effective treatment for preventing further relapses. In order to provide this service at Stony Brook University Hospital, we initiated an open-label prospective study of single colonoscopic FMT among patients with ≥ 2 recurrences of CDI, with the intention of monitoring microbial composition in the recipient before and after FMT, as compared with their respective donor...
2018: PloS One
https://www.readbyqxmd.com/read/29373727/determinants-of-reduced-genetic-capacity-for-butyrate-synthesis-by-the-gut-microbiome-in-crohn-s-disease-and-ulcerative-colitis
#13
Emilio J Laserna-Mendieta, Adam G Clooney, Julián F Carretero-Gomez, Carthage Moran, Donal Sheehan, James A Nolan, Colin Hill, Cormac G M Gahan, Susan A Joyce, Fergus Shanahan, Marcus J Claesson
Background and Aims: Alterations in short chain fatty acid metabolism, particularly butyrate, have been reported in inflammatory bowel disease, but results have been conflicting because of small study numbers and failure to distinguish disease type, activity or other variables such as diet. We performed a comparative assessment of the capacity of the microbiota for butyrate synthesis, by quantifying butyryl-CoA:acetate CoA-transferase [BCoAT] gene content in stool from patients with Crohn's disease [CD; n = 71], ulcerative colitis [UC; n = 58] and controls [n = 75], and determined whether it was related to active vs inactive inflammation, microbial diversity, and composition and/or dietary habits...
January 24, 2018: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/29361092/safety-clinical-response-and-microbiome-findings-following-fecal-microbiota-transplant-in-children-with-inflammatory-bowel-disease
#14
Alka Goyal, Andrew Yeh, Brian R Bush, Brian A Firek, Leah M Siebold, Matthew Brian Rogers, Adam D Kufen, Michael J Morowitz
Background: The role of fecal microbiota transplant (FMT) in the treatment of pediatric inflammatory bowel disease (IBD) is unknown. The aims of this study were to assess safety, clinical response, and gut microbiome alterations in children with Crohn's disease (CD), ulcerative colitis (UC), or indeterminate colitis (IC). Methods: In this open-label, single-center prospective trial, patients with IBD refractory to medical therapy underwent a single FMT by upper and lower endoscopy...
January 18, 2018: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/29359185/antibiotic-treatments-for-clostridium-difficile-infection-are-associated-with-distinct-bacterial-and-fungal-community-structures
#15
Regina Lamendella, Justin R Wright, Jada Hackman, Christopher McLimans, David R Toole, William Bernard Rubio, Rebecca Drucker, Hoi Tong Wong, Kate Sabey, John P Hegarty, David B Stewart
Clostridium difficile infection (CDI) is the most common nosocomial infection in the United States, being associated with high recurrence and persistence rates. Though the relationship between intestinal dysbiosis and CDI is well known, it is unclear whether different forms of dysbiosis may potentially affect the course of CDI. How this is further influenced by C. difficile -directed antibiotics is virtually uninvestigated. In this study, diarrheal stool samples were collected from 20 hospitalized patients, half of whom were confirmed to have CDI...
January 2018: MSphere
https://www.readbyqxmd.com/read/29358865/fecal-microbiota-transplantation-induces-remission-of-infantile-allergic-colitis-through-gut-microbiota-re-establishment
#16
Sheng-Xuan Liu, Yin-Hu Li, Wen-Kui Dai, Xue-Song Li, Chuang-Zhao Qiu, Meng-Ling Ruan, Biao Zou, Chen Dong, Yan-Hong Liu, Jia-Yi He, Zhi-Hua Huang, Sai-Nan Shu
AIM: To investigate the impact of fecal microbiota transplantation (FMT) treatment on allergic colitis (AC) and gut microbiota (GM). METHODS: We selected a total of 19 AC infants, who suffered from severe diarrhea/hematochezia, did not relieve completely after routine therapy or cannot adhere to the therapy, and were free from organ congenital malformations and other contraindications for FMT. Qualified donor-derived stools were collected and injected to the AC infants via a rectal tube...
December 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29344020/a-case-of-immune-thrombocytopenia-as-a-rare-side-effect-of-an-immunotherapy-with-pd1-blocking-agents-for-metastatic-melanoma
#17
Claudia Pföhler, Hermann Eichler, Barbara Burgard, Nathalie Krecké, Cornelia S L Müller, Thomas Vogt
Background: Checkpoint blocking agents such as pembrolizumab or nivolumab may induce a diversity of mostly autoimmune-mediated side effects. These autoimmune phenomena mainly affect ductless glands such as the pituitary gland (hypophysitis), the thyroid gland (thyreoiditis), the skin (vitiligo and rash), the colon (colitis), and the lung (pneumonitis). Furthermore, many other organs or organ systems may be affected. Case Report: This work describes a case of an immune thrombocytopenia that developed or rather became clinically significant shortly after initiation of a systemic therapy with first nivolumab and later pembrolizumab given due to metastatic melanoma...
November 2017: Transfusion Medicine and Hemotherapy
https://www.readbyqxmd.com/read/29337777/rescue-diverting-loop-ileostomy-an-alternative-to-emergent-colectomy-in-the-setting-of-severe-acute-refractory-ibd-colitis
#18
Tara A Russell, Aaron J Dawes, Danielle S Graham, Stephanie A K Angarita, Christina Ha, Jonathan Sack
BACKGROUND: Severe acute refractory colitis has traditionally been an indication for emergent colectomy in IBD, yet under these circumstances patients are at elevated risk for complications because of their heightened inflammatory state, nutritional deficiencies, and immunocompromised state. OBJECTIVE: We hypothesized that rescue diverting loop ileostomy may be a viable alternative to emergent colectomy, providing the opportunity for colonic healing and patient optimization before more definitive surgery...
February 2018: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/29325789/long-term-outcomes-following-ileal-pouch-anal-anastomosis-in-patients-with-indeterminate-colitis
#19
Uri Netz, Norman J Galbraith, Stephen O'Brien, Jane Carter, Stephen Manek, Robert E Petras, Susan Galandiuk
BACKGROUND: The advisability of performing ileal pouch-anal anastomosis for patients with indeterminate colitis is debated. Indeterminate colitis is found in up to 15% of inflammatory bowel disease colectomy specimens. We determined long-term outcomes in patients diagnosed with indeterminate colitis undergoing ileal pouch-anal anastomosis. METHODS: Fifty-six patients were included with a mean follow-up of 14 ± 7 years. Long-term behavior was defined based on surgeon assessment as "Crohn disease-like" in patients who subsequently developed clear signs of Crohn disease and as "non-Crohn disease-like...
March 2018: Surgery
https://www.readbyqxmd.com/read/29302751/primary-fecal-diversion-and-bowel-dysfunction-in-restorative-proctocolectomy-for-ulcerative-colitis-a-nationwide-cross-sectional-study
#20
Anders Mark-Christensen, Søren Brandsborg, Søren Laurberg
PURPOSE: The aim of this study was to explore the effects of primary fecal diversion on the risk of pouch dysfunction. METHODS: Patients operated with an ileal pouch-anal anastomosis in Denmark in 2000-2010 were identified and validated bowel function questionnaires retrieved from a cross-sectional study. Multivariate logistic regression analysis was performed to determine the effect of primary fecal diversion on pouch dysfunction. A diagnostic or procedural code for intraabdominal abscesses and fistulas, occurring within 1 year after pouch creation, and anastomotic leakage or extremely early-onset pouchitis within 30 days of surgery defined a pelvic complication...
February 2018: International Journal of Colorectal Disease
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