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Stress related mucosal disease

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https://www.readbyqxmd.com/read/28993273/acute-mental-stress-induces-mitochondrial-bioenergetic-crisis-and-hyper-fission-along-with-aberrant-mitophagy-in-the-gut-mucosa-in-rodent-model-of-stress-related-mucosal-disease
#1
Rudranil De, Somnath Mazumder, Souvik Sarkar, Subhashis Debsharma, Asim Azhar Siddiqui, Shubhra Jyoti Saha, Chinmoy Banerjee, Shiladitya Nag, Debanjan Saha, Uday Bandyopadhyay
Psychological stress, depression and anxiety lead to multiple organ dysfunctions wherein stress-related mucosal disease (SRMD) is common to people experiencing stress and also occur as a side effect in patients admitted to intensive care units; however the underlying molecular aetiology is still obscure. We report that in rat-SRMD model, cold restraint-stress severely damaged gut mitochondrial functions to generate superoxide anion (O2(•-)), depleted ATP and shifted mitochondrial fission-fusion dynamics towards enhanced fission to induce mucosal injury...
October 7, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28942174/gut-biofilm-forming-bacteria-in-inflammatory-bowel-disease
#2
REVIEW
Ankita Srivastava, Jaya Gupta, Sunil Kumar, Awanish Kumar
Inflammatory bowel disease (IBD) symbolizes a group of intestinal disorders in which prolonged inflammation occur in the digestive tract (esophagus, large intestine, small intestine mouth, stomach). Both genetic and environmental factors (infections, stress, diet) are involved in the development of IBD. As we know that bacteria are found in the intestinal mucosa of human and clinical observations revealed bacterial biofilms associated with patients of IBD. Various factors and microbes are found to play an essential role in biofilm formation and mucosal colonization during IBD...
September 20, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28812000/diagnostic-imaging-features-of-necrotizing-enterocolitis-a-narrative-review
#3
REVIEW
Francesco Esposito, Rosanna Mamone, Marco Di Serafino, Carmela Mercogliano, Valerio Vitale, Gianfranco Vallone, Patrizia Oresta
Necrotizing enterocolitis (NEC) is an inflammatory process, characterized by intestinal necrosis of variable extension, leading to perforation, generalized peritonitis and death. The classical pathogenetic theory focuses on mucosal damage related to a stress induced intestinal ischemia leading to mucosal injury and bacterial colonization of the wall. A more recent hypothesis emphasizes the role of immaturity of gastrointestinal and immune system, particularly of the premature, responsible of bowel wall vulnerability and suffering...
June 2017: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28762585/therapeutic-effects-of-6-gingerol-8-gingerol-and-10-gingerol-on-dextran-sulfate-sodium-induced-acute-ulcerative-colitis-in-rats
#4
Feng Zhang, Na Ma, Yong-Feng Gao, Li-Li Sun, Ji-Guo Zhang
Ulcerative colitis is one of the most common types of inflammatory bowel disease and is multifactorial and relapsing. 6-Gingerol, a component of gingerols extracted from ginger (Zingiber officinale), has been reported to improve ulcerative colitis. The present study aims to investigate the therapeutic efficacy of two analogous forms of 6-gingerol, 8-gingerol, and 10-gingerol, on ulcerative colitis. Colitis was induced in rats through consumption of 5% (w/v) dextran sulfate sodium drinking water for 7 consecutive days...
September 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28731213/immunomodulatory-properties-of-olea-europaea-leaf-extract-in-intestinal-inflammation
#5
Teresa Vezza, Francesca Algieri, Alba Rodríguez-Nogales, José Garrido-Mesa, M Pilar Utrilla, Nassima Talhaoui, Ana María Gómez-Caravaca, Antonio Segura-Carretero, M Elena Rodríguez-Cabezas, Giovanni Monteleone, Julio Gálvez
SCOPE: Extracts from olive (Olea europaea) leaves are used in Mediterranean traditional medicine as anti-inflammatory agents. They contain antioxidant phenolic compounds, such as oleuropeoside, which could be interesting for the treatment of inflammatory conditions associated with oxidative stress in humans, including inflammatory bowel disease. METHODS AND RESULTS: The anti-inflammatory effects of olive leaf extract (0.5-25 mg/kg) were studied in two mice models of colitis (DSS and DNBS)...
July 21, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28717845/proteomics-in-inflammatory-bowel-disease-approach-using-animal-models
#6
REVIEW
Fadi H Mourad, Yunki Yau, Valerie C Wasinger, Rupert W Leong
Recently, proteomics studies have provided important information on the role of proteins in health and disease. In the domain of inflammatory bowel disease, proteomics has shed important light on the pathogenesis and pathophysiology of inflammation and has contributed to the discovery of some putative clinical biomarkers of disease activity. By being able to obtain a large number of specimens from multiple sites and control for confounding environmental, genetic, and metabolic factors, proteomics studies using animal models of colitis offered an alternative approach to human studies...
July 17, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28684298/polysaccharides-of-dendrobium-officinale-kimura-migo-protect-gastric-mucosal-cell-against-oxidative-damage-induced-apoptosis-in-vitro-and-in-vivo
#7
Qiang Zeng, Chun-Hay Ko, Wing-Sum Siu, Long-Fei Li, Xiao-Qiang Han, Liu Yang, Clara Bik-San Lau, Jiang-Miao Hu, Ping-Chung Leung
ETHNOPHARMACOLOGICAL RELEVANCE: Dendrobium officinale Kimura & Migo (DO) is a valuable Traditional Chinese Medicine to nourish stomach, in which polysaccharides are identified as active ingredients. However, limited scientific evidences have been reported on the gastroprotective efficacy of DO. The aim of the current study was to investigate the protective effects and underlying mechanism of polysaccharides from DO(DOP) on gastric mucosal injury. MATERIAL AND METHODS: For in vitro study, HFE145 cells were pretreated with DOP before induction of cell apoptosis by H2O2...
July 4, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28678827/identifying-novel-genes-and-biological-processes-relevant-to-the-development-of-cancer-therapy-induced-mucositis-an-informative-gene-network-analysis
#8
REVIEW
Cielito C Reyes-Gibby, Stephanie C Melkonian, Jian Wang, Robert K Yu, Samuel A Shelburne, Charles Lu, Gary Brandon Gunn, Mark S Chambers, Ehab Y Hanna, Sai-Ching J Yeung, Sanjay Shete
Mucositis is a complex, dose-limiting toxicity of chemotherapy or radiotherapy that leads to painful mouth ulcers, difficulty eating or swallowing, gastrointestinal distress, and reduced quality of life for patients with cancer. Mucositis is most common for those undergoing high-dose chemotherapy and hematopoietic stem cell transplantation and for those being treated for malignancies of the head and neck. Treatment and management of mucositis remain challenging. It is expected that multiple genes are involved in the formation, severity, and persistence of mucositis...
2017: PloS One
https://www.readbyqxmd.com/read/28625152/lipid-oxidation-products-in-the-pathogenesis-of-inflammation-related-gut-diseases
#9
Barbara Sottero, Daniela Rossin, Giuseppe Poli, Fiorella Biasi
A defective mucosal barrier function is the principal cause of the uncontrolled onset and progression of a number of human inflammatory gut diseases, most of which are characterized by chronic intermittent immune and inflammatory responses leading to structural intestinal damage, which can represent a potential risk for colorectal cancer development. During the active disease phase the production of pro-inflammatory cytokines and chemokines, and the induction of oxidative reactions by activated leukocytes and epithelial cells represent the main event in intestinal inflammation...
June 19, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28338023/implant-maintenance-treatment-and-peri-implant-health
#10
COMMENT
Mark-Steven Howe
Data sourcesMedline (PubMed), Embase, Cochrane Central Register of Controlled Trials and Cochrane Oral Health Group Trials Register databases and a manual search of the Journal of Dental Research, Journal of Clinical Periodontology, Journal of Periodontology and the International Journal of Periodontics and Restorative Dentistry from January 2014 to February 2015.Study selectionProspective, retrospective, randomised or not, case-controlled or case series trials showing the incidence or recurrence of peri-implant disease plus or minus PIMT over more than six months...
March 2017: Evidence-based Dentistry
https://www.readbyqxmd.com/read/28320982/comparison-of-three-acute-stress-models-for-simulating-the-pathophysiology-of-stress-related-mucosal-disease
#11
COMPARATIVE STUDY
Bhagawati Saxena, Sanjay Singh
Stress-related mucosal disease (SRMD) is highly prevalent in intensive care patients leading to increasing treatment cost and mortality. SRMD is a disease elusive of ideal treatment. Evaluation of drugs is very pertinent for the efficient and safe treatment of SRMD. It relies mainly on in vivo screening models. There are various stress models, and till date, none of them is validated for simulating the SRMD pathophysiology. The present study aims to choose the best model, which reproduce pathophysiology of SRMD, among previously established stress models...
May 30, 2017: Drug Discoveries & Therapeutics
https://www.readbyqxmd.com/read/28259289/proton-pump-inhibitors-in-cancer-patients-how-useful-they-are-a-review-of-the-most-common-indications-for-their-use
#12
REVIEW
Gianmauro Numico, Vittorio Fusco, Pierfrancesco Franco, Fausto Roila
Proton-Pump Inhibitors (PPIs) are commonly prescribed in the general population and in cancer patients. A supposed role in the prevention of gastric mucosal damage apparently justify their use in patients undergoing cytotoxic chemotherapy, steroids and radiotherapy on the gastro-duodenal region. They are frequently given also to patients admitted to Intensive Care Units, for the prevention of stress-related gastric ulcers. The evidence about these use of gastroprotection is reviewed. In the majority of the cases the prescription of PPIs is not justified...
March 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28257879/enzymatically-synthesized-glycogen-inhibits-colitis-through-decreasing-oxidative-stress
#13
Takakazu Mitani, Yasukiyo Yoshioka, Takashi Furuyashiki, Yoko Yamashita, Yasuhito Shirai, Hitoshi Ashida
Inflammatory bowel diseases are a group of chronic inflammation conditions of the gastrointestinal tract. Disruption of the mucosal immune response causes accumulation of oxidative stress, resulting in the induction of inflammatory bowel disease. In this study, we investigated the effect of enzymatically synthesized glycogen (ESG), which is produced from starch, on dextran sulfate sodium (DSS)- and 2,4,6-trinitrobenzenesulfonic acid (TNBS)-induced colitis in C57BL/6 mice. Oral administration of ESG suppressed DSS- and TNBS-induced shortening of large intestine in female mice and significant decreased DSS-induced oxidative stress and TNBS-induced pro-inflammatory cytokine expression in the large intestine...
February 28, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28251844/overview-of-pathophysiological-features-of-gerd
#14
Paolo Usai Satta, Francesco Oppia, Francesco Cabras
Gastroesophageal reflux disease (GERD) is a very prevalent condition and has a high impact on the quality of life. Nevertheless, pathophysiology is complex and multi-factorial. Several mechanisms have been proposed: decreased salivation, decreased lower esophageal sphincter pressure resting tone, presence of hiatal hernia, increased number of transient lower esophageal sphincter relaxations, increased acid, and pepsin secretion, duodeno-gastro-esophageal reflux of bile acids and trypsin. Other factors contributing to the pathophysiology of GERD include poor esophageal clearance, delayed gastric emptying and impaired mucosal defensive factors...
September 2017: Minerva Gastroenterologica e Dietologica
https://www.readbyqxmd.com/read/28240194/brain-and-gut-crf-signaling-biological-actions-and-role-in-the-gastrointestinal-tract
#15
Yvette Taché, Muriel Larauche, Pu-Qing Yuan, Mulugeta Million
Corticotropin-releasing factor (CRF) signaling pathways coordinate the behavioral, endocrine, autonomic and visceral responses to stress. Convergent anatomical, molecular, pharmacological and functional experimental evidence supports an important role of brain CRF receptor signaling in stress-related alterations of gastrointestinal functions. These include the inhibition of gastric acid secretion and gastro-small intestinal transit, the stimulation of colonic enteric nervous system and secretory-motor function, enhanced intestinal permeability, and visceral hypersensitivity...
February 23, 2017: Current Molecular Pharmacology
https://www.readbyqxmd.com/read/28202416/microarray-analysis-of-macrophage-response-to-infection-with-streptococcus-oralis-reveals-the-immunosuppressive-effect-of-hydrogen-peroxide
#16
Hitomi Matsushima, Yutaro Kumagai, Alexis Vandenbon, Hideo Kataoka, Miki Kadena, Haruka Fukamachi, Takafumi Arimoto, Hirobumi Morisaki, Nagatoshi Fujiwara, Nobuo Okahashi, Hirotaka Kuwata
Oral streptococci including mitis group streptococci are commensal residents and are also the first to colonize the oral cavity. However, various species of these oral streptococci have the potential to invade the host and occasionally lead to severe infectious disease such as cardiovascular diseases. Oral streptococci have close interactions with the host immune system including macrophages at the oral mucosal surface. One notable common trait of oral streptococcus including Streptococcus oralis (S. oralis) is the production of hydrogen peroxide (H2O2)...
April 1, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28190393/significance-of-cholinergic-and-peptidergic-nerves-in-stress-induced-ulcer-and-malt-lymphoma-formation
#17
Masahiko Nakamura, Anders Øverby, Akina Uehara, Masaya Oda, Shinichi Takahashi, Somay Y Murayama, Hidenori Matsui
Backgound: The role of enteric nerves has previously been demonstrated in the formation of several gastric diseases. In the present review, the significance of the cholinergic nerves in stress-induced ulcer formation as well as the importance of substance P in the formation of gastric MALT lymphoma is discussed. METHODS: The stress-induced ulcer was induced by the plaster bandage methods in rats. The gastric MALT lymphoma was formed by the peroral infection of gastric mucosal homogenate of the infected mouse in C57BL/6 mice...
February 10, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28063885/identification-of-nf-%C3%AE%C2%BAb-related-genes-in-channel-catfish-and-their-expression-profiles-in-mucosal-tissues-after-columnaris-bacterial-infection
#18
Xiaozhu Wang, Shikai Liu, Yujia Yang, Qiang Fu, Ash Abebe, Zhanjiang Liu
Interactions of NF-κB family, IκB family and IKK complex are the key components of NF-κB pathway that is essential for many biological processes including innate and adaptive immunity, inflammation and stress responses. In spite of their importance, systematic analysis of these genes in fish has been lacking. Here we report a systematic study of the NF-κB related genes in channel catfish. Five NF-κB family genes, five IκB family genes and three IKK complex genes were identified in the channel catfish genome...
January 4, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28028951/increased-expression-of-tlr4-and-tlr7-but-not-prolactin-mrna-by-peripheral-blood-monocytes-in-active-celiac-disease
#19
Iva Brynychova, Iva Hoffmanova, Milos Dvorak, Pavlina Dankova
BACKGROUND: Celiac disease (CD) is an organ-specific autoimmune disease, and both adaptive and innate immunity are involved in its development. OBJECTIVES: The aim of the study was to determine whether the markers of intestinal mucosal inflammation in CD can be detected in peripheral blood monocytes (PBMs), and whether the immune properties of PBMs change as the clinical signs and symptoms of CD improve after the introduction of a gluten-free diet (GFD). The focus was on changes in mRNA expression of selected toll-like receptors (TLR2, TLR4, TLR7), stress cytokine prolactin (PRL), and proand anti-inflammatory cytokines (TNF-α, IL-6, IL-12, IL-10) in PBMs...
September 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/27733718/prevalence-of-deleterious-oral-habits-and-oral-mucosal-lesions-among-fishermen-population-of-mahe-south-india
#20
Ksa Anzil, J Mathews, A G Sai, M Kiran, S Kevin, S Sunith
INTRODUCTION: Fishing is an occupation associated with uneven diet, strain, drunkenness, tobacco use, and deleterious habits. The physical state of laborers on a large scale will also be influenced by conditions at their work site. Oral mucosal lesions can occur as a result of infections, local shock or infuriation, systemic diseases, and uncontrolled usage of tobacco, betel quid, and alcohol. The aim of the present study is to assess the prevalence of deleterious oral habits and oral mucosal lesions among fishermen population of Mahe, South India...
September 1, 2016: Journal of Contemporary Dental Practice
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