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Intestinal ischemia

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https://www.readbyqxmd.com/read/27910952/protective-effects-of-ginsenoside-rg1-on-intestinal-ischemia-reperfusion-injury-induced-oxidative-stress-and-apoptosis-via-activation-of-the-wnt-%C3%AE-catenin-pathway
#1
Guo Zu, Jing Guo, Ningwei Che, Tingting Zhou, Xiangwen Zhang
Ginsenoside Rg1 (Rg1) is one of the major bioactive ingredients in Panax ginseng, and it attenuates inflammation and apoptosis. The aims of our study were to explore the potential of Rg1 for the treatment of intestinal I/R injury and to determine whether the protective effects of Rg1 were exerted through the Wnt/β-catenin signaling pathway. In this study, Rg1 treatment ameliorated inflammatory factors, ROS and apoptosis that were induced by intestinal I/R injury. Cell viability was increased and cell apoptosis was decreased with Rg1 pretreatment following hypoxia/reoxygenation (H/R) in the in vitro study...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27909060/cd6-regulates-intestinal-ischemia-reperfusion-induced-injury-by-modulating-natural-igm-producing-b1a-cell-self-renewal
#2
Gospel Enyindah-Asonye, Yan Li, Wei Xin, Nora Singer, Neetu Gupta, John Fung, Feng Lin
Intestinal ischemia/reperfusion (I/R) injury is a relatively common pathological condition that can lead to multi-organ failure and mortality. Regulatory mechanism for this disease is poorly understood, although it is established that circulating pathogenic natural IgM, which is primarily produced by B1a cells outside of the peritoneal cavity, are integrally involved. CD6 was originally identified as a marker for T cells and later found to be present on some subsets of B cells in humans, however, whether CD6 plays any role in intestinal I/R induced injury and if so, what are the underlying mechanisms, remain unknown...
December 1, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27908961/foramen-of-winslow-hernia-case-report-of-a-minimally-invasive-approach
#3
Pedro N Brandão, Isabel Mesquita, Mónica Sampaio, Pedro Martins, Jorge Daniel, José Davide
Foramen of Winslow hernias account for 8% of all internal hernias. Their non-specific presentation and often late diagnosis are associated with an estimated mortality of 50%. The use of complementary diagnostic methods facilitates the diagnosis and planning of the therapeutic strategy. Urgent surgery is the appropriate treatment due to the risk of intestinal ischemia, being laparotomy the main form of approach described. Few cases of laparoscopy are referred to in the literature.
December 1, 2016: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/27894424/intestinal-rotation-abnormalities-and-midgut-volvulus
#4
REVIEW
Jacob C Langer
Rotation abnormalities may be asymptomatic or may be associated with obstruction caused by bands, midgut volvulus, or associated atresia or web. The most important goal of clinicians is to determine whether the patient has midgut volvulus with intestinal ischemia, in which case an emergency laparotomy should be done. If the patient is not acutely ill, the next goal is to determine whether the patient has a narrow-based small bowel mesentery. In general, the outcomes for children with a rotation abnormality are excellent, unless there has been midgut volvulus with significant intestinal ischemia...
February 2017: Surgical Clinics of North America
https://www.readbyqxmd.com/read/27891381/post-colonoscopy-ischaemic-colitis-in-a-patient-without-risk-factors-for-colon-ischemia-a-case-report
#5
Dattatray Balasaheb Solanke, Nirav Madhukant Pipaliya, Alisha Nitin Chaubal, Meghraj Ananda Ingle, Prabha Dilip Sawant
Ischaemic colitis is the most common form of intestinal ischaemia and is more common in the elderly and in the people having risk factors for colonic ischaemia. Colonoscopy procedure itself is a rare cause of ischaemic colitis. Fewer than 20 cases of ischaemic colitis caused by colonoscopy procedure have been reported in the english literature till date. This patient presented to us within hours of routine colonoscopy with rectal bleeding and lower abdominal pain. On repeat colonoscopy, the patient had mucosal oedema and ulcerations in the descending colon and sigmoid colon...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27888039/total-midgut-volvulus-in-adults-with-intestinal-malrotation-report-of-eleven-patients
#6
H Kotobi, V Tan, J Lefèvre, F Duramé, G Audry, Y Parc
OBJECTIVE: Total small-intestinal volvulus with malrotation (TSIVM) classically presents in the neonatal period; it occurs much less frequently in the adult and is often misdiagnosed. Prognosis is directly related to the degree and duration of intestinal ischemia. Our goal is to describe our experience with TSIVM in the adult, to identify any specific findings and to discuss its management. METHOD: Eleven patients who had undergone surgery for TSIVM at three centers between 1992 and 2012 were included...
November 22, 2016: Journal of Visceral Surgery
https://www.readbyqxmd.com/read/27884318/n-acetylcysteine-ameliorates-liver-injury-in-a-rat-model-of-intestinal-ischemia-reperfusion
#7
Konstantinos Kalimeris, Panagiotis Briassoulis, Agathi Ntzouvani, Tzortzis Nomikos, Kleio Papaparaskeva, Aikaterini Politi, Chrysanthi Batistaki, Georgia Kostopanagiotou
BACKGROUND: N-acetylcysteine (NAC) is an antioxidant with direct and indirect antioxidant actions used in the clinical setting. Oxidative stress is known to play a pivotal role in the intestinal ischemia reperfusion (IIR). Therefore, we studied the effect of different pretreatment regimens with NAC on the IIR injury in rats. MATERIALS AND METHODS: Thirty-five male Wistar rats were randomly assigned to five groups. In group sham, only laparotomy was performed. Group control underwent IIR without NAC...
December 2016: Journal of Surgical Research
https://www.readbyqxmd.com/read/27870784/intussusception-with-cecal-cyst-as-lead-point-in-a-child
#8
Michelle Lai, Brian A Coakley, Eric M Webber, Ran D Goldman
Intussusception is a pediatric abdominal emergency in early childhood involving telescoping of 1 part of the bowel into another part. In most children, the condition is idiopathic with no identifiable lead point. Meckel diverticulum is the most common lead point, followed by polyps and duplication cysts. We describe a case of a boy with intussusception caused by a duplication cyst that was drawn retrograde through the ileocecal valve. The patient presented after a 3-month period of symptomatology and had been considered to have constipation before signs of intestinal obstruction developed...
November 19, 2016: Pediatric Emergency Care
https://www.readbyqxmd.com/read/27867110/poly-%C3%AE%C2%B5-benzyloxycarbonyl-l-lysine-grafted-branched-polyethylenimine-as-efficient-nanocarriers-for-indomethacin-with-enhanced-oral-bioavailability-and-anti-inflammatory-efficacy
#9
Chao Lu, Xin Li, Wenquan Xia, Siheng Lu, Hongjun Luo, Danyan Ye, Yanmei Zhang, Daojun Liu
: Star-block copolymers PEI-g-PZLL with a branched polyethylenimine (PEI) core and multiple grafted poly(ε-benzyloxycarbonyl-L-lysine) (PZLL) peripheral chains were designed, synthesized, and evaluated as nanocarriers for indomethacin (IND). In an aqueous solution, PEI-g-PZLL self-assembled into spherical nanoparticles capable of encapsulating IND at high loading capacity and loading efficiency. Differential scanning calorimetry and X-ray diffraction measurements indicated that IND was molecularly or amorphously dispersed in the nanoparticles...
November 17, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27858375/diagnosis-of-non-occlusive-acute-mesenteric-ischemia-in-the-intensive-care-unit
#10
Simon Bourcier, Ammar Oudjit, Geoffrey Goudard, Julien Charpentier, Sarah Leblanc, Romain Coriat, Hervé Gouya, Bertrand Dousset, Jean-Paul Mira, Frédéric Pène
BACKGROUND: Non-occlusive mesenteric ischemia (NOMI) is a common complication and accounts for a major cause of death in critically ill patients. The diagnosis of NOMI with respect to the eventual indications for surgical treatment is challenging. We addressed the performance of the diagnostic strategy of NOMI in the intensive care unit, with emphasis on contrast-enhanced abdominal CT-scan. METHODS: This was a retrospective monocenter study. Patients with clinically suspected acute mesenteric ischemia were included if a comprehensive diagnostic workup was carried out including surgical and/or endoscopic digestive explorations...
December 2016: Annals of Intensive Care
https://www.readbyqxmd.com/read/27857996/co-existence-of-cecal-volvulus-with-situs-inversus-totalis-a-case-report
#11
Meric Emre Bostanci, Mustafa Atabey, Birkan Bozkurt, Ilker Ozel, Kursat Karadayi
Detorsion, cecopexy, cecostomy and tube cecostomy are the treatment options for acute cecal volvulus if there is no intestinal ischemia. Resection required if intestinal viability, necrosis, gangrene or perforation exists. After resection, primary anastomosis or ileostomy can be performed. First colonoscopic decompression testing may be appropriate in terms of saving time for elective surgery. The co-existance of situs inversus totalis with cecal volvulus may cause uncertainty of the definite diagnosis and delay of surgical procedure...
September 2016: Turkish Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27849300/ischemic-postconditioning-assessment-in-the-liver-of-rats-undergoing-mesenteric-ischemia-and-reperfusion
#12
Carlos Henrique Marques Dos Santos, Ricardo Dutra Aydos, Ed Nogueira, Luciana Nakao Odashiro Miiji, Pedro Carvalho Cassino, Isadora Ishaq Alves, Nádia Meneguesso Calheiros, Milena Garcia
Introduction: Ischemic postconditioning is a method that shows evidence of efficacy in minimizing reperfusion injury; however, its effectiveness in preventing injuries in distant organs is still unknown, especially in those who have undergone mesenteric ischemia and reperfusion. Objective: To evaluate the effect of ischemic postconditioning in preventing reperfusion injury in the liver of rats submitted to mesenteric ischemia and reperfusion, comparing two different methods of ischemic postconditioning...
July 2016: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/27842908/postconditioning-toll-erating-mesenteric-ischemia-reperfusion-injury
#13
Olivér Rosero, Péter Ónody, Tibor Kovács, Dávid Molnár, András Fülöp, Gábor Lotz, László Harsányi, Attila Szijártó
BACKGROUND: Postconditioning may prove to be a suitable method to decrease ischemia-reperfusion injury of intestine after mesenteric arterial occlusion. Toll-like-receptor-4 is involved in the pathophysiology of organ damage after ischemia-reperfusion; therefore, the aim of our study was to investigate the effect of postconditioning on the mucosal expression of toll-like-receptor-4. METHODS: Male Wistar rats (n = 10/group) underwent 60 minutes of superior mesenteric artery occlusion followed by 6 hours of reperfusion in 3 groups: sham-operated, ischemia-reperfusion, and a postconditioned group...
November 11, 2016: Surgery
https://www.readbyqxmd.com/read/27834292/mesenteric-vascular-dysregulation-and-intestinal-inflammation-accompanies-experimental-spinal-cord-injury
#14
Emily M Besecker, Gina M Deiter, Nicole Pironi, Timothy K Cooper, Gregory Michael Holmes
Cervical and high thoracic spinal cord injury (SCI) drastically impairs autonomic nervous system function. Individuals with SCI at thoracic spinal-level 5 (T5) or higher often present cardiovascular disorders that include resting systemic arterial hypotension. Gastrointestinal (GI) tissues are critically dependent upon adequate blood flow and even brief periods of visceral hypoxia triggers GI dysmotility. The aim of this study was to test the hypothesis that T3-SCI induces visceral hypoperfusion, diminished postprandial vascular reflexes and concomitant visceral inflammation...
November 9, 2016: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/27832292/takayasu-arteritis-ta-first-presenting-with-intestinal-ischemia-a-case-report-and-review-of-gastrointestinal-tract-involvement-ischemic-and-non-ischemic-associated-with-ta
#15
REVIEW
Durga Prasanna Misra, Nagarajan Krishnan, Debasis Gochhait, Dantis Emmanuel, Vir Singh Negi
Takayasu arteritis (TA) is a large vessel vasculitis involving the aorta and its major branches. Insidious inflammation usually results in gradual arterial narrowing; however, critical organ ischemia is rare. We describe a young male with TA who presented with acute mesenteric ischemia requiring intestinal resection, followed by critical limb ischemia. In our literature review, we identified intestinal gangrene as a rare manifestation of TA. However, intestinal ischemia as the first manifestation of TA has been scarcely reported in the literature...
November 10, 2016: Rheumatology International
https://www.readbyqxmd.com/read/27830407/intestinal-ischemia-reperfusion-rooting-for-the-socs
#16
EDITORIAL
Younggeon Jin, Anthony T Blikslager
No abstract text is available yet for this article.
November 9, 2016: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/27824535/update-on-the-management-of-intestinal-failure
#17
REVIEW
Shishira Bharadwaj, Parul Tandon, John M Rivas, Anne Furman, Lisa Moccia, Ashley Ratliff, Abdullah Shatnawei, Ezra Steiger, Donald F Kirby
Intestinal failure is a serious complication of conditions such as inflammatory bowel disease, mesenteric ischemia, and radiation enteritis--and of extensive bowel resection performed because of these diseases. Imbalances of fluids and electrolytes and poor nutritional status manifest as chronic diarrhea or increased ostomy output. Prompt referral to a center specializing in intestinal rehabilitation is key to achieving nutritional homeostasis and, in some cases, can help the patient return to oral food intake...
November 2016: Cleveland Clinic Journal of Medicine
https://www.readbyqxmd.com/read/27800516/a-fatal-case-of-hepatic-portal-venous-gas-associated-with-hemodialysis
#18
Tahmina Begum, Mashrafi Ahmed
Hepatic portal venous gas is a rare cause of acute abdomen caused by leakage of air from the gastrointestinal tract to the portal venous system. The mortality is high, particularly when associated with intestinal ischemia or necrosis. We describe a fatal case of hepatic portal venous gas and pneumatosis intestinalis due to hemodialysis-related hypotension and severe atherosclerotic disease.
August 2016: ACG Case Reports Journal
https://www.readbyqxmd.com/read/27798536/influences-of-vagotomy-on-gut-ischemia-reperfusion-injury-in-mice
#19
Motonari Ri, Kazuhiko Fukatsu, Taiki Miyakuni, Masashi Yanagawa, Satoshi Murakoshi, Hiroshi Yasuhara, Yasuyuki Seto
BACKGROUND: How vagotomy affects host responses to gut ischemia-reperfusion (I/R) is unclear. MATERIALS AND METHODS: Exp.1: Male Institute of Cancer Research mice (n = 22) were assigned to the I/R or the vago-I/R group. The I/R mice underwent 45-minute superior mesenteric artery (SMA) occlusion. The vago-I/R mice received vagotomy before SMA occlusion. Survival was observed for 48 hours.Exp.2: Mice (n = 55) were divided into 4 groups (Sham, vago, I/R, vago-I/R)...
October 26, 2016: Shock
https://www.readbyqxmd.com/read/27798439/colonic-ischemia-usual-and-unusual-presentations-and-their-management
#20
Ayah Oglat, Eamonn M M Quigley
PURPOSE OF REVIEW: To provide an update on the epidemiology, pathophysiology, clinical presentation, and management of colonic ischemia. RECENT FINDINGS: Formerly regarded as a rare cause of lower gastrointestinal hemorrhage, colonic ischemia is now recognized to be the most common manifestation of intestinal vascular compromise. In contrast to ischemic events in the small intestine wherein thrombotic and embolic events predominate, colonic ischemia typically results from a global reduction in blood flow to the colon and no occlusive lesion(s) are evident...
October 27, 2016: Current Opinion in Gastroenterology
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