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https://www.readbyqxmd.com/read/29766049/interleukin-1%C3%AE-deficient-mice-have-an-altered-gut-microbiota-leading-to-protection-from-dextran-sodium-sulfate-induced-colitis
#1
Moran Nunberg, Nir Werbner, Hadar Neuman, Marina Bersudsky, Alex Braiman, Moshe Ben-Shoshan, Meirav Ben Izhak, Yoram Louzoun, Ron N Apte, Elena Voronov, Omry Koren
Inflammatory bowel diseases (IBD) are a group of chronic inflammatory disorders of the intestine, with as-yet-unclear etiologies, affecting over a million people in the United States alone. With the emergence of microbiome research, numerous studies have shown a connection between shifts in the gut microbiota composition (dysbiosis) and patterns of IBD development. In a previous study, we showed that interleukin 1α (IL-1α) deficiency in IL-1α knockout (KO) mice results in moderate dextran sodium sulfate (DSS)-induced colitis compared to that of wild-type (WT) mice, characterized by reduced inflammation and complete healing, as shown by parameters of weight loss, disease activity index (DAI) score, histology, and cytokine expression...
May 2018: MSystems
https://www.readbyqxmd.com/read/29703739/-tuf-gene-sequence-variation-in-bifidobacterium-longum-subspecies-infantis-detected-in-the-fecal-microbiota-of-chinese-infants
#2
Blair Lawley, Manuela Centanni, Jun Watanabe, Ian Sims, Susan Carnachan, Roland Broadbent, Pheng Soon Lee, Khai Hong Wong, Gerald W Tannock
Members of the bacterial genus Bifidobacterium generally dominate the faecal microbiota of infants. The species B. longum is prevalent, but the subspecies longum and infantis that are known to colonize the infant bowel are not usually differentiated in microbiota investigations. These subspecies differ in their capacity to metabolize Human Milk Oligosaccharides (HMO) and may have differing ecological and symbiotic roles in humans. Quantitative PCR provides a quick analytical method by which to accurately ascertain the abundances of target species in microbiotas and microcosms...
April 27, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29685785/validation-of-a-low-cost-do-it-yourself-model-for-neonatal-thoracoscopic-congenital-diaphragmatic-hernia-repair
#3
Pedro Reino-Pires, Manuel Lopez
OBJECTIVE: We aimed to develop and validate a low cost, do-it-yourself model for neonatal thoracoscopic congenital diaphragmatic hernia (CDH). DESIGN: Volunteers with varying skills in neonatal minimally invasive surgery tested and evaluated the model simulating a neonatal thoracoscopic CDH repair. The model was built from ordinary materials purchased in a dime store: a small food container, a neoprene band simulating a diaphragm, an inflated balloon simulating a spleen, a tissue chord simulating intestine, and a body wash sponge simulating a collapsed lung...
April 20, 2018: Journal of Surgical Education
https://www.readbyqxmd.com/read/29685508/superior-mesenteric-artery-stenting-using-embolic-protection-device-for-treatment-of-acute-or-chronic-mesenteric-ischemia
#4
Bernardo C Mendes, Gustavo S Oderich, Tiziano Tallarita, Karina S Kanamori, Manju Kalra, Randall R DeMartino, Fahad Shuja, Jill K Johnstone
OBJECTIVE: The objective of the study was to report the feasibility and results of superior mesenteric artery (SMA) stenting using embolic protection devices (EPDs) to treat acute mesenteric ischemia (AMI) and chronic mesenteric ischemia (CMI). METHODS: A retrospective review was conducted of consecutive patients who underwent SMA stenting with EPDs from 2007 to 2016. EPDs were used selectively in patients with occlusions, severe calcification, or acute thrombus...
April 20, 2018: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29652914/intestinal-manipulation-affects-mucosal-antimicrobial-defense-in-a-mouse-model-of-postoperative-ileus
#5
Kathy Stein, Lena Hieggelke, Bianca Schneiker, Mariola Lysson, Burkhard Stoffels, Sabine Nuding, Jan Wehkamp, Judith Kikhney, Annette Moter, Joerg C Kalff, Sven Wehner
AIM: To explore the effects of abdominal surgery and interleukin-1 signaling on antimicrobial defense in a model of postoperative ileus. METHODS: C57BL/6 and Interleukin-1 receptor type I (IL-1R1) deficient mice underwent intestinal manipulation to induce POI. Expression of mucosal IL-1α, IL-1β and IL-1R1 and several antimicrobial peptides and enzymes were measured by quantitative PCR or ELISA, western blotting or immunohistochemistry. Bacterial overgrowth was determined by fluorescent in-situ hybridization and counting of jejunal luminal bacteria...
2018: PloS One
https://www.readbyqxmd.com/read/29607792/nutritional-strategies-to-prevent-gastrointestinal-toxicity-during-pelvic-radiotherapy
#6
Linda J Wedlake
Radiotherapy-induced damage to non-cancerous gastrointestinal mucosa has effects on secretory and absorptive functions and can interfere with normal gastrointestinal physiology. Nutrient absorption and digestion may be compromised. Dietary manipulation is an attractive option with sound rationale for intervention. The aim of this review was to synthesise published evidence for the use of elemental formulae, low or modified fat diets, fibre, lactose restriction and probiotics, prebiotics and synbiotics to protect the bowel from gastrointestinal side effects during long-course, radical pelvic radiotherapy...
April 2, 2018: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/29570127/successful-treatment-of-paradoxical-puborectalis-contraction-and-intractable-anorectal-pain-with-sacral-neuromodulation
#7
Ted M Roth
BACKGROUND: Paradoxical puborectalis contraction (PPC) is a syndrome of obstructed defecation associated with a cluster of complaints including rectal pain, incomplete evacuatory sensation, prolonged repetitive straining with bowel movements, and the need for digital manipulation. Traditional treatment has yielded mixed results. CASE: We present a case of PPC successfully treated with staged sacral neuromodulation and review her diagnostic features, medical regimen, and prior unsuccessful interventions tried...
March 21, 2018: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/29545797/death-receptor-3-signaling-controls-the-balance-between-regulatory-and-effector-lymphocytes-in-samp1-yitfc-mice-with-crohn-s-disease-like-ileitis
#8
Zhaodong Li, Ludovica F Buttó, Kristine-Anne Buela, Li-Guo Jia, Minh Lam, John D Ward, Theresa T Pizarro, Fabio Cominelli
Death receptor 3 (DR3), a member of the tumor necrosis factor receptor (TNFR) superfamily, has been implicated in regulating T-helper type-1 (TH 1), type-2 (TH 2), and type-17 (TH 17) responses as well as regulatory T cell (Treg ) and innate lymphoid cell (ILC) functions during immune-mediated diseases. However, the role of DR3 in controlling lymphocyte functions in inflammatory bowel disease (IBD) is not fully understood. Recent studies have shown that activation of DR3 signaling modulates Treg expansion suggesting that stimulation of DR3 represents a potential therapeutic target in human inflammatory diseases, including Crohn's disease (CD)...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29402771/micro-integral-membrane-protein-mimp-a-newly-discovered-anti-inflammatory-protein-of-lactobacillus-plantarum-enhances-the-gut-barrier-and-modulates-microbiota-and-inflammatory-cytokines
#9
Mingming Yin, Xuebing Yan, Wenhao Weng, Yongzhi Yang, Renyuan Gao, Minfeng Liu, Cheng Pan, Qi Zhu, Hao Li, Qing Wei, Tongyi Shen, Yanlei Ma, Huanlong Qin
BACKGROUND/AIMS: Recent studies have demonstrated that the manipulation of the gut microbiome represents a promising treatment for inflammatory bowel disease (IBD). We previously identified micro integral membrane protein (MIMP) as the smallest domain of surface layer protein from Lactobacillus Plantarum. However, the therapeutic relevance of MIMP in IBD remains unknown. METHODS: We initially employed a dextran sodium sulphate (DSS)-induced colitis model and evaluated the effect of MIMP on the inflammation response, intestinal barrier and gut microbiota using histological examination, Fluorescein isothiocyanate-Dextran detection and pyrosequencing analysis respectively...
2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29379205/a-modular-platform-for-targeted-rnai-therapeutics
#10
Ranit Kedmi, Nuphar Veiga, Srinivas Ramishetti, Meir Goldsmith, Daniel Rosenblum, Niels Dammes, Inbal Hazan-Halevy, Limor Nahary, Shani Leviatan-Ben-Arye, Michael Harlev, Mark Behlke, Itai Benhar, Judy Lieberman, Dan Peer
Previous studies have identified relevant genes and signalling pathways that are hampered in human disorders as potential candidates for therapeutics. Developing nucleic acid-based tools to manipulate gene expression, such as short interfering RNAs1-3 (siRNAs), opens up opportunities for personalized medicine. Yet, although major progress has been made in developing siRNA targeted delivery carriers, mainly by utilizing monoclonal antibodies (mAbs) for targeting4-8 , their clinical translation has not occurred...
March 2018: Nature Nanotechnology
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
#11
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/29373532/the-role-of-bacteria-probiotics-and-diet-in-irritable-bowel-syndrome
#12
REVIEW
Ashton Harper, Malwina M Naghibi, Davinder Garcha
Irritable bowel syndrome is a highly prevalent gastrointestinal disorder that threatens the quality of life of millions and poses a substantial financial burden on healthcare systems around the world. Intense research into the human microbiome has led to fascinating discoveries which directly and indirectly implicate the diversity and function of this occult organ in irritable bowel syndrome (IBS) pathophysiology. The benefit of manipulating the gastrointestinal microbiota with diet and probiotics to improve symptoms has been demonstrated in a wealth of both animal and human studies...
January 26, 2018: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/29362336/-a-case-survived-long-period-after-repeated-operation-against-the-small-intestinal-gist-with-perforation
#13
Keisuke Koumori, Takuo Watanabe, Ayano Kakazu, Yoshiko Fujikawa, Yo Mikayama, Yasuyuki Jin, Kimiatsu Hasuo, Munetaka Masuda
A patient was 60-year-old man. In March 2011, the small bowel tumor with perforation was found and the partial resection of small intestine was urgently performed. KIT of resected specimen was positive. Then, diagnosis as GIST was defined. Oral administration of imatinib was started, but it was finished in 5 months because of development of the systemic edema. In February 2013, the abdominal CT revealed a tumor of 20 cm in size in the pelvis. Upon laparotomy, we detected the GIST recurrence generated at the region of small intestine anastomosis where manipulated previously, then resected all of tumor and partially small intestine...
January 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29361089/differential-susceptibility-to-t-cell-induced-colitis-in-mice-role-of-the-intestinal-microbiota
#14
Cynthia Reinoso Webb, Hendrik den Bakker, Iurii Koboziev, Yava Jones-Hall, Kameswara Rao Kottapalli, Dmitry Ostanin, Kathryn L Furr, Qinghui Mu, Xin M Luo, Matthew B Grisham
One of the best characterized mouse models of the inflammatory bowel diseases (IBD; Crohn's disease, ulcerative colitis) is the CD4+CD45RBhigh T cell transfer model of chronic colitis. Following our relocation to Texas Tech University Health Sciences Center (TTUHSC), we observed a dramatic reduction in the incidence of moderate-to-severe colitis from a 16-year historical average of 90% at Louisiana State University Health Sciences Center (LSUHSC) to <30% at TTUHSC. We hypothesized that differences in the commensal microbiota at the 2 institutions may account for the differences in susceptibility to T cell-induced colitis...
January 18, 2018: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/29342445/case-report-of-an-uncommon-case-of-drain-site-hernia-after-colorectal-surgery
#15
M Manigrasso, P Anoldo, F Milone, G D De Palma, M Milone
BACKGROUND: trocar site herniation is a rare but potentially serious complication of laparoscopic surgery. Data about drain site hernia after laparoscopic surgery is scarce and anecdotal. CASE PRESENTATION: we report an uncommon case of drain site hernia in a man undergone laparoscopic left colectomy for a colonic adenocarcinoma who developed small bowel herniation in a 10 mm port site, in which a 24 FR drain was inserted leaving a real free space of 2 mm. DISCUSSION: laparoscopic approach has gained widespread acceptance in each surgical fields because of the perceived better postoperative outcomes in terms of less pain, faster recovery, and lower risk of incisional hernia...
January 9, 2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29342165/increased-colon-cancer-risk-after-severe-salmonella-infection
#16
Lapo Mughini-Gras, Michael Schaapveld, Jolanda Kramers, Sofie Mooij, E Andra Neefjes-Borst, Wilfrid van Pelt, Jacques Neefjes
BACKGROUND: Colon cancer constitutes one of the most frequent malignancies. Previous studies showed that Salmonella manipulates host cell signaling pathways and that Salmonella Typhimurium infection facilitates colon cancer development in genetically predisposed mice. This epidemiological study examined whether severe Salmonella infection, usually acquired from contaminated food, is associated with increased colon cancer risk in humans. METHODS AND FINDINGS: We performed a nationwide registry-based study to assess colon cancer risk after diagnosed Salmonella infection...
2018: PloS One
https://www.readbyqxmd.com/read/29327820/gastroenterology-today-between-certainties-and-news-a-meeting-held-in-turin-on-may-27-2017
#17
Rinaldo Pellicano, Davide G Ribaldone, Marco Astegiano, Luca Dughera, Edda Battaglia, Anna Morgando, Arrigo Arrigoni, Mauro Spandre, Mario Grassini, Giorgio M Saracco, Francis Mégraud
This special article reports on two crucial issues discussed during a meeting. The first was the updated management of Helicobacter pylori infection. This was approached taking into account the recent European Guidelines, with a focus on novelties in treatment. In particular, considering the increasing H. pylori antibiotic resistance to clarithromycin, in countries with a high clarithromycin resistance rate the bismuth-containing quadruple therapies should be preferred. The new formulation, with bismuth, metronidazole, and tetracycline contained in a single capsule (three-in-one), has shown exciting results both in naive and in non-responder patients...
January 10, 2018: Minerva Gastroenterologica e Dietologica
https://www.readbyqxmd.com/read/29314441/alterations-in-the-gut-barrier-and-involvement-of-toll-like-receptor-4-in-murine-postoperative-ileus
#18
S-S Lin, R-Q Zhang, L Shen, X-J Xu, K Li, A-V Bazhin, J Fichna, Y-Y Li
BACKGROUND: The changes in the gut barrier (GB) and associated mechanisms in postoperative ileus (POI) are still unclear. Toll-like receptor 4 (TLR4) is involved in inflammation, which may cause GB dysfunction and POI. Here, the roles of the GB in POI in relation to TLR4-dependent signaling pathways were explored. METHODS: POI was induced by small bowel manipulation in wild-type (WT) and TLR4-knockout (TLR4-/-) mice. Twenty-four hours after manipulation, indices of gastrointestinal (GI) transit, GB structure and function, inflammation, and related signaling pathways were analyzed...
January 4, 2018: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29285942/-non-alcoholic-fatty-liver-disease-as-a-component-of-the-metabolic-syndrome-and-its-causal-correlations-with-other-extrahepatic-diseases
#19
REVIEW
Tamás Halmos, Ilona Suba
Non-alcoholic fatty liver disease is the most common non-infectious chronic liver-disease in our age, and is a spectrum of all the diseases associated with increased fat accumulation in the hepatocytes. Its development is promoted by sedentary life-style, over-feeding, and certain genetic predisposition. Prevalence in the adult population, even in Hungary is ~30%. In a part of cases, this disease may pass into non-alcoholic steatohepatitis, later into fibrosis, rarely into primary hepatocellular cancer. Fatty liver is closely and bidirectionally related to the metabolic syndrome and type 2 diabetes, and nowadays there is a general consensus that fatty liver is the hepatic manifestation of the metabolic sycndrome...
December 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/29285689/gut-microbiota-in-the-pathogenesis-of-inflammatory-bowel-disease
#20
REVIEW
Atsushi Nishida, Ryo Inoue, Osamu Inatomi, Shigeki Bamba, Yuji Naito, Akira Andoh
Inflammatory bowel disease (IBD), including ulcerative colitis and Crohn's disease, is a chronic and relapsing inflammatory disorder of the intestine. Although its incidence is increasing globally, the precise etiology remains unclear and a cure for IBD has yet to be discovered. The most accepted hypothesis of IBD pathogenesis is that complex interactions between genetics, environmental factors, and the host immune system lead to aberrant immune responses and chronic intestinal inflammation. The human gut harbors a complex and abundant aggregation of microbes, collectively referred to as the gut microbiota...
February 2018: Clinical Journal of Gastroenterology
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