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IBD AND risk factors

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https://www.readbyqxmd.com/read/28804483/the-impact-of-western-diet-and-nutrients-on-the-microbiota-and-immune-response-at-mucosal-interfaces
#1
REVIEW
Donjete Statovci, Mònica Aguilera, John MacSharry, Silvia Melgar
Recent findings point toward diet having a major impact on human health. Diets can either affect the gut microbiota resulting in alterations in the host's physiological responses or by directly targeting the host response. The microbial community in the mammalian gut is a complex and dynamic system crucial for the development and maturation of both systemic and mucosal immune responses. Therefore, the complex interaction between available nutrients, the microbiota, and the immune system are central regulators in maintaining homeostasis and fighting against invading pathogens at mucosal sites...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28799006/multiple-sclerosis-and-environmental-risk-factors-a-case-control-study-in-iran
#2
Maryam Abbasi, Seyed Massood Nabavi, Seyed Mohammad Fereshtehnejad, Nikan Zerafat Jou, Iman Ansari, Vahid Shayegannejad, Seyed Ehsan Mohammadianinejad, Mahdi Farhoudi, Abbas Noorian, Nazanin Razazian, Mahmoud Abedini, Fardin Faraji
Studies have shown an increase in the incidence of MS in Iran. The aim of our study was to evaluate the relationship between environmental exposure and MS in Iran. This case-control study was conducted on 660 MS patients and 421 controls. Many environmental factors are compared between the two groups. Our findings demonstrated that prematurity ([OR = 4.99 (95% CI 1.34-18.68), P = 0.017]), history of measles and mumps ([OR = 1.60 (95% CI 1.05-2.45), P = 0.029; OR = 1.85 (95% CI 1.22-2.78), P = 0...
August 10, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28795970/machine-learning-based-gene-prioritization-identifies-novel-candidate-risk-genes-for-inflammatory-bowel-disease
#3
Ofer Isakov, Iris Dotan, Shay Ben-Shachar
BACKGROUND: The inflammatory bowel diseases (IBDs) are chronic inflammatory disorders, associated with genetic, immunologic, and environmental factors. Although hundreds of genes are implicated in IBD etiology, it is likely that additional genes play a role in the disease process. We developed a machine learning-based gene prioritization method to identify novel IBD-risk genes. METHODS: Known IBD genes were collected from genome-wide association studies and annotated with expression and pathway information...
August 8, 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28791279/pneumocystis-jirovecii-pneumonia-in-pediatric-inflammatory-bowel-disease-a-case-report-and-literature-review
#4
Sally J Lawrence, Manish Sadarangani, Kevan Jacobson
Immunosuppressive therapy is a known risk factor for opportunistic infections. We report the first case of severe Pneumocystis jirovecii infection requiring intensive care in a pediatric patient with inflammatory bowel disease (IBD). The literature was reviewed and there were 92 reported cases of Pneumocystis pneumonia (PCP) in patients with IBD. Most sources were case reports and there was likely reporting bias toward patients receiving immunomodulators, anti-tumor necrosis factor (anti-TNF) therapy, and those who died...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28790093/aggressive-large-cell-neuroendocrine-carcinoma-of-the-sigmoid-colon-in-a-patient-with-ulcerative-colitis
#5
Patrick Stoner, Taban Ghaffaripour, David Cohen
Colonic inflammation seen in inflammatory bowel disease (IBD) predisposes to the development of colorectal adenocarcinoma. In contrast, colorectal neuroendocrine carcinomas (NECs) have rarely been reported in the setting of IBD, and no definitive relationship between these tumours and IBD has been established. Dysplasia from chronic inflammation leading to neuroendocrine cell differentiation may be responsible for NEC development, though this finding has not been seen consistently. We present a case of large-cell neuroendocrine carcinoma of the sigmoid colon in a 65-year-old woman with long-standing ulcerative colitis...
August 7, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28765701/levels-and-activities-of-von-willebrand-factor-and-metalloproteinase-with-thrombospondin-type-1-motif-number-13-in-inflammatory-bowel-diseases
#6
Dorota Cibor, Danuta Owczarek, Saulius Butenas, Kinga Salapa, Tomasz Mach, Anetta Undas
AIM: To evaluate the levels of von Willebrand factor (VWF) and metalloproteinase with thrombospondin type-1 motif, number 13 (ADAMTS13) in inflammatory bowel disease (IBD) and correlate them with the disease activity. METHODS: Consecutive patients with IBD aged 18 years or older were enrolled in the study. Forty-seven patients with ulcerative colitis (UC), 38 with Crohn's disease (CD), and 50 healthy controls were included. The white blood cell count, haematocrit, platelet count, fibrinogen, partial activated thromboplastin time, C-reactive protein, albumin, VWF antigen level (VWF:Ag), VWF ristocetin cofactor activity (VWF:RCo), VWF collagen-binding activity (VWF:CB), and ADAMTS13 antigen level (ADAMTS13:Ag) and activity (ADAMTS13act) were measured...
July 14, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28747056/fecal-transplantation-as-a-treatment-for-clostridium-difficile-infection-in-patients-with-ulcerative-colitis
#7
Marta Izquierdo Romero, Pilar Varela Trastoy, Alejo Mancebo Mata
Clostridium difficile (CD) infection is currently the most frequent etiology of nosocomial diarrhea. Besides, its incidence is progressively increasing in ambulatory patients. Inflammatory bowel disease (IBD) is a risk factor of CD infection itself, but also due to the regular immunosuppressive treatment used in these patients. At the present time, fecal transplantation (FT) is a safe and cost-effective alternative if the previous antibiotic treatments have failed. Similar outcomes between patients with IBD and general population have been reported...
July 27, 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28721977/a-cross-sectional-survey-of-saudi-gastroenterologists-transition-strategies-for-adolescents-with-inflammatory-bowel-disease
#8
Elaf Al-Jahdali, Mahmoud Mosli, Omar Saadah
BACKGROUND/AIMS: The transition of adolescents with inflammatory bowel disease (IBD) from pediatric to adult care requires a well-structured standardized protocol to ensure the delivery of optimal healthcare and decrease the risk of nonadherence, hospitalizations, and complications. The aims of this survey are to evaluate current IBD transition practices adopted by gastroenterology services across the Kingdom of Saudi Arabia (KSA) and to identify the major challenges standing in the way of implementing effective transition strategies from the perspectives of pediatric and adult gastroenterologists...
July 2017: Saudi Journal of Gastroenterology: Official Journal of the Saudi Gastroenterology Association
https://www.readbyqxmd.com/read/28712945/intestinal-and-extraintestinal-cancers-associated-with-inflammatory-bowel-disease
#9
REVIEW
Minna Chang, Liisa Chang, Hanna M Chang, Fuju Chang
Inflammatory bowel disease (IBD) with its 2 most common entities, ulcerative colitis and Crohn's disease, causes an increased risk of developing intestinal cancers. In fact, malignancies are the second most common cause of death after cardiovascular diseases in both sexes of patients with IBD. Risk factors for colorectal cancer in IBD correlate with the duration of the disease, extent of disease, the association with primary sclerosing cholangitis, family history, and early age at onset. Patients with IBD also have an increased risk for developing a variety of extraintestinal malignancies...
June 27, 2017: Clinical Colorectal Cancer
https://www.readbyqxmd.com/read/28711286/novel-therapeutic-targets-for-inflammatory-bowel-disease
#10
REVIEW
Marjorie Argollo, Gionata Fiorino, Pieter Hindryck, Laurent Peyrin-Biroulet, Silvio Danese
Inflammatory bowel disease (IBD), including Crohn's disease (CD) and Ulcerative Colitis (UC), are immune mediated conditions associated with progressive damage of the inflamed gut tissue, and have a considerable impact on the patient's quality of life. The pathogenesis remains uncertain, but it is clear that complex mechanisms associated with host and luminal factors are involved, generating an unbalance between pro- and anti-inflammatory signaling. It is well established that the purpose of an adequate and complete control of the intestinal inflammation measured not only by clinical symptoms, but also with more objective data such as fecal biomarkers (calprotectin) and endoscopy...
July 12, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28706774/are-dominant-strictures-in-primary-sclerosing-cholangitis-a-risk-factor-for-cholangiocarcinoma
#11
REVIEW
Roger W Chapman, Kate D Williamson
PURPOSE OF REVIEW: Cholangiocarcinoma is a devastating, unpredictable complication of large duct primary sclerosing cholangitis (PSC), which occurs in 5-15% of patients. The aim of this review is to discuss whether dominant strictures (DS) occurring in the larger bile ducts in PSC are a risk factor for the development of cholangiocarcinoma. RECENT FINDINGS: The development of DS is related to specific genetic polymorphisms affecting the innate immune system and the microbiome...
2017: Current Hepatology Reports
https://www.readbyqxmd.com/read/28706415/role-of-new-endoscopic-techniques-in-inflammatory-bowel-disease-management-has-the-change-come
#12
EDITORIAL
Loredana Goran, Lucian Negreanu, Ana Maria Negreanu
Despite significant therapeutic progress in recent years, inflammatory bowel disease (IBD), which includes Crohn's disease and ulcerative colitis, remains a challenge regarding its pathogenesis and long-term complications. New concepts have emerged in the management of this disease, such as the "treat-to-target" concept, in which mucosal healing plays a key role in the evolution of IBD, the risk of recurrence and the need for surgery. Endoscopy is essential for the assessment of mucosal inflammation and plays a pivotal role in the analysis of mucosal healing in patients with IBD...
June 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28700948/peripartum-antibiotics-promote-gut-dysbiosis-loss-of-immune-tolerance-and-inflammatory-bowel-disease-in-genetically-prone-offspring
#13
Jun Miyoshi, Alexandria M Bobe, Sawako Miyoshi, Yong Huang, Nathaniel Hubert, Tom O Delmont, A Murat Eren, Vanessa Leone, Eugene B Chang
Factors affecting the developing neonatal gut microbiome and immune networks may increase the risk of developing complex immune disorders such as inflammatory bowel diseases (IBD). In particular, peripartum antibiotics have been suggested as risk factors for human IBD, although direct evidence is lacking. Therefore, we examined the temporal impact of the commonly used antibiotic cefoperazone on both maternal and offspring microbiota when administered to dams during the peripartum period in the IL-10-deficient murine colitis model...
July 11, 2017: Cell Reports
https://www.readbyqxmd.com/read/28696041/the-contribution-of-microbial-biotechnology-to-sustainable-development-goals-microbiome-therapies
#14
Paul W O'Toole, Max Paoli
Complex communities of microbes live on and in plants, humans and other animals. These communities are collectively referred to as the microbiota or microbiome. Plants and animals evolved to co-exist with these microbes. In mammals, particular kinds of alteration of the microbiome (dysbiosis) are associated with loss of health, most likely due to loss of microbial metabolites, signalling molecules, or regulators of host pathways. Modern life-style diseases such as Inflammatory Bowel Disease (IBD), Irritable Bowel Syndrome (IBS), type 2 diabetes, obesity and metabolic syndrome have been linked to dysbiosis...
July 11, 2017: Microbial Biotechnology
https://www.readbyqxmd.com/read/28694804/cd169-expressing-macrophage-a-key-subset-in-mesenteric-lymph-nodes-promotes-mucosal-inflammation-in-dextran-sulfate-sodium-induced-colitis
#15
Qiuting Li, Dan Wang, Shengyu Hao, Xiaolei Han, Yuan Xia, Xiangzhi Li, Yaoxing Chen, Masato Tanaka, Chun-Hong Qiu
Inflammatory bowel disease (IBD) including Crohn's disease (CD) and ulcerative colitis is a relapsing-remitting illness. Patients with long-standing extensive colitis are easy to develop colorectal cancer (CRC). The increasing incidence of IBD and a substantial increase in the risk of CRC make the necessity to pay more attention on the regulation of inflammation especially by specific macrophages subset. The present study reported that a key subset of sinus macrophage expressing CD169 in mesenteric lymph nodes (mLNs) played an essential role in promoting mucosal inflammation...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28690452/advances-in-the-diagnosis-and-management-of-colonic-dysplasia-in-patients-with-inflammatory-bowel-disease
#16
Shirley Cohen-Mekelburg, Yecheskel Schneider, Stephanie Gold, Ellen Scherl, Adam Steinlauf
The prevalence of colorectal cancer (CRC) in inflammatory bowel disease (IBD) is estimated at 3.7%. Risk factors for CRC include more severe disease (as reflected by the extent of disease and the duration of poorly controlled disease), family history of CRC, pseudopolyps, primary sclerosing cholangitis, and male sex. In addition, both early and late onset of IBD have been shown to be risk factors in different studies. Most societal guidelines recommend initiation of surveillance colonoscopy at 8 to 10 years after IBD symptom onset, followed by subsequent surveillance in 1- to 2-year intervals...
June 2017: Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28682970/validation-of-risk-factors-for-fecal-incontinence-in-patients-with-crohn-s-disease
#17
Paul F Vollebregt, Arjan P Visscher, Adriaan A van Bodegraven, Richelle J F Felt-Bersma
BACKGROUND: Fecal incontinence has a great impact on daily life, and many patients are reluctant to report it. OBJECTIVE: The purpose of this study was to estimate the prevalence of fecal incontinence in patients with Crohn's disease, validate risk factors, and relate outcome with quality of life. DESIGN: The design was cross-sectional. SETTINGS: The study was conducted at an academic tertiary center. PATIENTS: Consecutive patients with Crohn's disease treated between 2003 and 2013 were included in this study...
August 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/28664992/the-outcome-of-ulcerative-colitis-patients-undergoing-pouch-surgery-is-determined-by-pre-surgical-factors
#18
H Yanai, S Ben-Shachar, L Mlynarsky, L Godny, M Leshno, H Tulchinsky, I Dotan
BACKGROUND: Pouch surgery, a common intervention for ulcerative colitis (UC) complications, is often associated with the development of pouchitis. AIM: To identify predictors of pouch outcome in a cohort of patients with UC. METHODS: We conducted a retrospective unmatched case-cohort study in a tertiary IBD referral centre. Adult patients with UC were classified into the worst phenotype throughout follow-up: normal pouch, a form of chronic pouchitis (either chronic pouchitis or Crohn's like disease of pouch [CLDP]), or episodic recurrent acute pouchitis (RAP)...
June 30, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28652663/drug-induced-liver-injury-in-inflammatory-bowel-disease-1-year-prospective-observational-study
#19
Tomas Koller, Martina Galambosova, Simona Filakovska, Michaela Kubincova, Tibor Hlavaty, Jozef Toth, Anna Krajcovicova, Juraj Payer
AIM: To analyze 1-year liver injury burden in inflammatory bowel disease (IBD) patients. METHODS: During a 6-mo inclusion period, consecutive IBD cases having a control visit at IBD center were included. Basic demographics, IBD phenotype and IBD treatment were recorded on entry. Aminotransferase (AT) activities of ALT, AST, ALP and gamma-glutamyl transpeptidase (GGT) were measured at baseline, 3 mo prior to study entry and prospectively every 3 mo for 1 year. Liver injury patterns were predefined as: Grade 1 in ALT 1-3 × upper limit of normal (ULN), grade 2 in ALT > 3 × ULN, hepatocellular injury in ALT > 2 × ULN, cholestatic injury in simultaneous GGT and ALP elevation > ULN...
June 14, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28651467/erap1-and-hla-c-interaction-in-inflammatory-bowel-disease-in-the-spanish-population
#20
Patricia Castro-Santos, Marco Antonio Moro-García, Raquel Marcos-Fernández, Rebeca Alonso-Arias, Roberto Díaz-Peña
Large genome-wide analysis studies (GWAS) and meta-analyses have dramatically increased our knowledge of the genetic risk factors of inflammatory bowel disease (IBD), identifying at least 163 loci. The endoplasmic reticulum aminopeptidase-2 ( ERAP2) gene has been reported as a potential candidate gene for IBD. GWAS have also shown the potential associations between ERAP single nucleotide polymorphisms (SNP) loci and susceptibility to several autoimmune diseases, and ERAP1 and ERAP2 polymorphisms are related to HLA class I-associated diseases, including ankylosing spondylitis and Behçet's disease...
January 1, 2017: Innate Immunity
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