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https://www.readbyqxmd.com/read/28335035/a-novel-cisd2-mutation-associated-with-a-classical-wolfram-syndrome-phenotype-alters-ca2-homeostasis-and-er-mitochondria-interactions
#1
Cécile Rouzier, David Moore, Cécile Delorme, Sandra Lacas-Gervais, Samira Ait-El-Mkadem, Konstantina Fragaki, Florence Burté, Valérie Serre, Sylvie Bannwarth, Annabelle Chaussenot, Martin Catala, Patrick Yu-Wai-Man, Véronique Paquis-Flucklinger
Wolfram syndrome (WS) is progressive neurodegenerative disease characterized by early-onset optic atrophy and diabetes mellitus, which can be associated with more extensive central nervous system and endocrine complications. The majority of patients harbour pathogenic WFS1 mutations, but recessive mutations in a second gene, CISD2, have been described in a small number of families with Wolfram syndrome type 2 (WFS2). The defining diagnostic criteria for WFS2 also consist of optic atrophy and diabetes mellitus, but unlike WFS1, this phenotypic subgroup has been associated with peptic ulcer disease and an increased bleeding tendency...
March 6, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28320982/comparison-of-three-acute-stress-models-for-simulating-the-pathophysiology-of-stress-related-mucosal-disease
#2
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...
March 19, 2017: Drug Discoveries & Therapeutics
https://www.readbyqxmd.com/read/28315586/sucralfate-versus-histamine-2-receptor-antagonists-for-stress-ulcer-prophylaxis-in-adult-critically-ill-patients-a-meta-analysis-and-trial-sequential-analysis-of-randomized-trials
#3
Mustafa Alquraini, Fayez Alshamsi, Morten Hylander Møller, Emilie Belley-Cote, Saleh Almenawer, Roman Jaeschke, Robert MacLaren, Waleed Alhazzani
PURPOSE: To determine the impact of using sucralfate versus H2RAs for SUP on patient important outcomes. MATERIALS AND METHODS: We searched CENTRAL, MEDLINE, EMBASE, ACPJC, clinical trials registries, and conference proceedings through June 2016 for randomized controlled trials (RCTs) comparing sucralfate to H2RAs for SUP in adult critically ill patients. RESULTS: 21 RCTs enrolling 3121 patients met inclusion criteria. There was no significant difference between sucralfate compared to H2RAs in the risk of clinically important GI bleeding (risk ratio [RR] 1...
March 8, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28314562/intermittent-vibration-protects-aged-muscle-from-mechanical-and-oxidative-damage-under-prolonged-compression
#4
Sing Wan Wong, Brian Chun Ho Cheung, Bruce Tak Keung Pang, Ateline Kwong, Anna Chung, Kenneth Ka Ho Lee, Arthur Fut Tak Mak
Deep tissue pressure ulcers, a serious clinical challenge originating in the muscle layer, are hardly detectable at the beginning. The challenge apparently occurs in aged subjects more frequently. As the ulcer propagates to the skin surface, it becomes very difficult to manage and can lead to fatal complications. Preventive measures are thus highly desirable. Although the complex pathological mechanisms have not been fully understood, prolonged and excessive physical challenges and oxidative stress are believed to be involved in the ulcer development...
February 27, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28293440/the-diagnosis-and-treatment-of-multiple-factitious-oral-ulcers-in-a-6-year-old-boy
#5
Priscilla Santana Pinto Gonçalves, Daniela Alejandra Cusicanqui Mendez, Paulo Sérgio da Silva Santos, José Humberto Damante, Daniela Rios, Thiago Cruvinel
Factitious ulcers are characterized by self-inflicted lesions with multifactorial origin. These lesions are frequently found in head, neck, and hands. This report shows a 6-year-old boy diagnosed with factitious oral ulcers that occurred after the self-biting of buccal vestibule and nail-scratching of gingival tissue. Clinically, a significant swelling was observed, hard on palpation, located at the right lower third of the face, next to the posterior area of the mandible. In the intraoral examination, ulcers at different healing stages were noted on the swelling area...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28288502/-s2k-guideline-helicobacter-pylori-and-gastroduodenal-ulcer-disease-2016-statement-on-stress-ulcer-prophylaxis-and-optimized-therapy
#6
Jörg C Hoffmann, Christian Prinz, Joachim Labenz, Stephan Miehlke, Peter Malfertheiner, Wolfgang Fischbach
No abstract text is available yet for this article.
March 2017: Zeitschrift Für Gastroenterologie
https://www.readbyqxmd.com/read/28283237/duodenal-ulcers-are-a-major-cause-of-gastrointestinal-bleeding-after-cardiac-surgery
#7
Frances Krawiec, Andrew Maitland, Qiuli Duan, Peter Faris, Paul J Belletrutti, William D T Kent
OBJECTIVE: To determine the incidence of gastrointestinal (GI) bleeding in patients after cardiac surgery, assess the perioperative risk factors, and determine the type of GI tract pathology associated with bleeding events. METHODS: At a tertiary referral hospital, all cardiac surgery patients having a postoperative GI bleed from April 2002 to March 2012 were identified. To determine bleeding etiology, only patients requiring endoscopy were included in the analysis...
February 14, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28279999/simplified-mortality-score-for-the-intensive-care-unit-sms-icu-protocol-for-the-development-and-validation-of-a-bedside-clinical-prediction-rule
#8
Anders Granholm, Anders Perner, Mette Krag, Peter Buhl Hjortrup, Nicolai Haase, Lars Broksø Holst, Søren Marker, Marie Oxenbøll Collet, Aksel Karl Georg Jensen, Morten Hylander Møller
INTRODUCTION: Mortality prediction scores are widely used in intensive care units (ICUs) and in research, but their predictive value deteriorates as scores age. Existing mortality prediction scores are imprecise and complex, which increases the risk of missing data and decreases the applicability bedside in daily clinical practice. We propose the development and validation of a new, simple and updated clinical prediction rule: the Simplified Mortality Score for use in the Intensive Care Unit (SMS-ICU)...
March 9, 2017: BMJ Open
https://www.readbyqxmd.com/read/28278495/antioxidant-supplements-and-gastrointestinal-diseases-a-critical-appraisal
#9
Islam Khan, Sue E Samson, Ashok Kumar Grover
The gastrointestinal tract digests and absorbs dietary nutrients; protects the body against physical and chemical damage from contents in its lumen; provides immunity against external antigens and keeps an optimum environment for the gut microbiota. These functions cannot be performed normally in several diseases of which the following are discussed here: irritable bowel syndrome, inflammatory bowel disease which includes Crohn's disease and ulcerative colitis. Because these diseases are associated with oxidative stress, a host of antioxidant supplements are used for maintenance and recovery of the gut functions...
March 8, 2017: Medical Principles and Practice: International Journal of the Kuwait University, Health Science Centre
https://www.readbyqxmd.com/read/28273124/blockade-of-cyclophilin-d-rescues-dexamethasone-induced-oxidative-stress-in-gingival-tissue
#10
Yuting He, Ling Zhang, Zhuoli Zhu, Anqi Xiao, Haiyang Yu, Xueqi Gan
Glucocorticoids (GCs) are frequently used for the suppression of inflammation in chronic inflammatory diseases. Excessive GCs usage is greatly associated with several side effects, including gingival ulceration, the downward migration of the epithelium, attachment loss and disruption of transeptal fibers. The mechanisms underlying GCs-induced impairments in gingival tissue remains poorly understood. Mitochondrial dysfunction is associated with various oral diseases, such as chronic periodontitis, age-related alveolar bone loss and hydrogen peroxide-induced cell injury in gingival...
2017: PloS One
https://www.readbyqxmd.com/read/28270247/gut-brain-actions-underlying-comorbid-anxiety-and-depression-associated-with-inflammatory-bowel-disease
#11
Áine Abautret-Daly, Elaine Dempsey, Adolfo Parra-Blanco, Carlos Medina, Andrew Harkin
Introduction Inflammatory bowel disease (IBD) is a chronic relapsing and remitting disorder characterised by inflammation of the gastrointestinal tract. There is a growing consensus that IBD is associated with anxiety- and depression-related symptoms. Psychological symptoms appear to be more prevalent during active disease states with no difference in prevalence between Crohn's disease and ulcerative colitis. Behavioural disturbances including anxiety- and depression-like symptoms have also been observed in animal models of IBD...
March 8, 2017: Acta Neuropsychiatrica
https://www.readbyqxmd.com/read/28269780/fenugreek-seed-powder-attenuated-aluminum-chloride-induced-tau-pathology-oxidative-stress-and-inflammation-in-a-rat-model-of-alzheimer-s-disease
#12
Asokan Prema, Arokiasamy Justin Thenmozhi, Thamilarasan Manivasagam, Musthafa Mohamed Essa, Gilles J Guillemin
Alzheimer's disease (AD) is a common neurodegenerative disorder that mainly affects the aged population and is characterized by the progressive loss of the hippocampal and cortical neurons, which results in memory and cognitive impairments. Trigonella foenum-graecum (fenugreek) has been reported to have hypoglycemic, hypocholesterolemic, hyperinsulinemic and anti-diabetic properties. Traditionally, it was used as a galactagogue and to treat anorexia, fever gastritis, gastric ulcers, and various nervous disorders...
February 25, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28268785/establishment-of-a-measurement-method-for-in-shoe-pressure-and-shear-stress-in-specific-regions-for-diabetic-ulcer-prevention
#13
Ayumi Amemiya, Hiroshi Noguchi, Makoto Oe, Hiromi Sanada, Taketoshi Mori
Pressure and shear stress are the factors of diabetic foot ulcers and callus formation. However, in-shoe shear stress of callus measurement could not have been measured because of technical difficulties. The purpose of this study is to verify reliability and validity of the established measurement system for in-shoe pressure and shear stress. For reliability, coefficients of variation (CV) and intraclass correlation coefficients (ICC) were confirmed. For known-groups validity, callus and non-callus feet were compared...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28267639/evaluation-of-anti-inflammatory-effect-of-silver-coated-glass-beads-in-mice-with-experimentally-induced-colitis-as-a-new-type-of-treatment-in-inflammatory-bowel-disease
#14
Krzysztof Siczek, Hubert Zatorski, Anna Chmielowiec-Korzeniowska, Radzisław Kordek, Leszek Tymczyna, Jakub Fichna
BACKGROUND: Recent studies point at the anti-inflammatory action of silver through induction of apoptosis of inflammatory cells via oxidative stress, promotion of wound healing as well as antimicrobial effect. Our aim was to design a new formulation based on silver and validate its anti-inflammatory activity in the mouse models of colitis. METHODS: Silver-coated glass beads were prepared using a magnetron sputtering method and a standard magnetron sputtering gun equipped with pure silver target...
January 12, 2017: Pharmacological Reports: PR
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
#15
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/28255972/gastroprotective-effect-of-thymoquinone-on-water-immersion-restraint-stress-induced-ulceration-in-rats
#16
Syed Sufiyan Ahmad, Abul Kalam Najmi, Madhu Kaundal, Mohd Akhtar
To evaluated the role of thymoquinone (TQ) on stress induced ulceration progress in rats subjected to water immersion restraint as a stress (WRS) condition model. Wistar albino rats were divided into different groups; the animals were subjected to WRS. TQ (10 mg/kg) alone and TQ with ranitidine (20 mg/kg) were administered per orally as pre treatment for 7 days. On 8(th) day the animals were sacrificed, gastric juice, pH, acid secretion, acid output, ulcer index and markers of oxidative stress and histopathology were determined...
March 2, 2017: Drug Research
https://www.readbyqxmd.com/read/28255738/cyclophosphamide-induced-stomach-and-duodenal-lesions-as-a-no-system-disturbance-in-rats-l-name-l-arginine-stable-gastric-pentadecapeptide-bpc-157
#17
Krešimir Luetic, Mario Sucic, Josipa Vlainic, Zeljka Belosic Halle, Dean Strinic, Tinka Vidovic, Franka Luetic, Marinko Marusic, Sasa Gulic, Tatjana Turudic Pavelic, Antonio Kokot, Ranka Serventi Seiwerth, Domagoj Drmic, Lovorka Batelja, Sven Seiwerth, Predrag Sikiric
We revealed a new point with cyclophosphamide (150 mg/kg/day intraperitoneally for 7 days): we counteracted both rat stomach and duodenal ulcers and increased NO- and MDA-levels in these tissues. As a NO-system effect, BPC 157 therapy (10 µg/kg, 10 ng/kg, intraperitoneally once a day or in drinking water, till the sacrifice) attenuated the increased NO- and MDA-levels and nullified, in rats, severe cyclophosphamide-ulcers and even stronger stomach and duodenal lesions after cyclophosphamide + L-NAME (5 mg/kg intraperitoneally once a day)...
March 2, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28251964/-mitochondrial-dna-deletion-%C3%AE-4977-in-peptic-ulcer-disease
#18
Z Salehi, A Haghighi, S Haghighi, K Aminian, S F Asl, F Mashayekhi
Reactive oxygen species (ROS) play a critical role in peptic ulcer disease (PUD). Due to the high rate of ROS production and limited capacity for DNA repair within mitochondria, mtDNA is susceptible to oxidative damage and mutations. mtDNA deletion Δ4977 is one of the most common deletion events identified in mitochondria. We examined the association of 4977-bp mtDNA deletion with PUD. Genotypes were determined in bioptic samples of 150 PUD patients and 190 controls. The 4977-bp mtDNA deletion was found more frequently among patients with PUD (52%) than among controls (22...
January 2017: Molekuliarnaia Biologiia
https://www.readbyqxmd.com/read/28248201/intravascular-hemolysis-and-the-pathophysiology-of-sickle-cell-disease
#19
REVIEW
Gregory J Kato, Martin H Steinberg, Mark T Gladwin
Hemolysis is a fundamental feature of sickle cell anemia that contributes to its pathophysiology and phenotypic variability. Decompartmentalized hemoglobin, arginase 1, asymmetric dimethylarginine, and adenine nucleotides are all products of hemolysis that promote vasomotor dysfunction, proliferative vasculopathy, and a multitude of clinical complications of pulmonary and systemic vasculopathy, including pulmonary hypertension, leg ulcers, priapism, chronic kidney disease, and large-artery ischemic stroke. Nitric oxide (NO) is inactivated by cell-free hemoglobin in a dioxygenation reaction that also oxidizes hemoglobin to methemoglobin, a non-oxygen-binding form of hemoglobin that readily loses heme...
March 1, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28245757/the-role-of-stress-in-inflammatory-bowel-diseases
#20
Sgambato Dolores, Miranda Agnese, Ranaldo Rocco, Federico Alessandro, Romano Marco
BACKGROUND: Inflammatory bowel disease (IBD) is a multi-factorial systemic disorder which involves immune, genetic and environmental factors. Stress, in its various forms, plays an important role in gastrointestinal diseases and, in particular, in IBD. METHODS: Here, we focus on the environmental stressors in different aspects of IBD (pathogenesis, course and severity of disease) and, in particular, will evaluate the mechanisms by which they may influence IBD. RESULTS: The effect of stress on IBD might be mediated by autonomic nervous system and hypothalamic pituitary adrenal axis...
February 28, 2017: Current Pharmaceutical Design
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