101
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Land WG. Emerging role of innate immunity in organ transplantation. Transplant Rev (Orlando) 2012; 26:60-72. [DOI: 10.1016/j.trre.2011.05.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Revised: 03/25/2011] [Accepted: 05/17/2011] [Indexed: 02/08/2023]
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102
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Maretta M, Tóth Š, Bujdoš M, Tóth Š, Jonecová Z, Veselá J. Alterations of epithelial layer after ischemic preconditioning of small intestine in rats. J Mol Histol 2012; 43:171-8. [PMID: 22350813 DOI: 10.1007/s10735-012-9393-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2011] [Accepted: 02/07/2012] [Indexed: 02/07/2023]
Abstract
Ischemic-reperfusion (IR) injury of the small intestine makes a serious complications associated with various surgical procedures and is related to changes in motility, secretory activity and structural alterations. Preconditioning can reduce range of this damage. The aim of the experimental study was to determine the influence of ischemic preconditioning (IPC) on IR injury on jejunal epithelial layer. Wistar rats (n = 56) were divided in two experimental groups. IR group was subjected to 60 min ischemia of cranial mesenteric artery and followed by reperfusion periods: 1,4,8,24 h (IR1, IR4, IR8, IR24). Group with ischemic preconditioning (IPC+IR) was subjected to two subsequent ischemic attacks (12 min) with 10 min of reperfusion between them, and after 2nd attack ischemia was induced for 60 min followed by relevant reperfusion period. IPC showed the protective impact on the jejunal tissue architecture after 1 h reperfusion, when in IR1 group the highest and significant damage was observed (p < 0.001) in contrast to IPC+IR1 group. Histopathological damage of the intestine in pretreated groups was postponed to 4 h of reperfusion. Protective effect of IPC together with later accumulation of injury signs were confirmed by weaker impact on goblet cell (p < 0.001) and Paneth cell populations (p < 0.05).The increased cells proliferation in preconditioned groups came later, but stronger after 8 h of reperfusion (p < 0.001) and after 24 h of reperfusion still remained at the high activity level (p < 0.001). Our experimental results on the histopathological changes in the jejunum during ischemic preconditioning proved that IPC may have a positive effect on maintaining intestinal barrier function.
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Affiliation(s)
- M Maretta
- Department of Histology and Embryology, Faculty of Medicine, Pavol Jozef Šafárik University, Šrobárova 2, 041 80, Košice, Slovakia.
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103
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Lu J, Mitra S, Wang X, Khaidakov M, Mehta JL. Oxidative stress and lectin-like ox-LDL-receptor LOX-1 in atherogenesis and tumorigenesis. Antioxid Redox Signal 2011; 15:2301-33. [PMID: 21338316 DOI: 10.1089/ars.2010.3792] [Citation(s) in RCA: 133] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1) has been identified as a major receptor for oxidized low-density lipoprotein (ox-LDL) in endothelial cells, monocytes, platelets, cardiomyocytes, and vascular smooth muscle cells. Its expression is minimal under physiological conditions but can be induced under pathological conditions. The upregulation of LOX-1 by ox-LDL appears to be important for physiologic processes, such as endothelial cell proliferation, apoptosis, and endothelium remodeling. Pathophysiologic effects of ox-LDL in atherogenesis have also been firmly established, including endothelial cell dysfunction, smooth muscle cell growth and migration, monocyte transformation into macrophages, and finally platelet aggregation-seen in atherogenesis. Recent studies show a positive correlation between increased serum ox-LDL levels and an increased risk of colon, breast, and ovarian cancer. As in atherosclerosis, ox-LDL and its receptor LOX-1 activate the inflammatory pathway through nuclear factor-kappa B, leading to cell transformation. LOX-1 is important for maintaining the transformed state in developmentally diverse cancer cell lines and for tumor growth, suggesting a molecular connection between atherogenesis and tumorigenesis.
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Affiliation(s)
- Jingjun Lu
- Cardiovascular Division, VA Medical Center, University of Arkansas for Medical Sciences, Little Rock, AR 72212, USA
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104
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Bolekova A, Spakovska T, Kluchova D, Toth S, Vesela J. NADPH-diaphorase expression in the rat jejunum after intestinal ischemia/reperfusion. Eur J Histochem 2011; 55:e23. [PMID: 22073370 PMCID: PMC3203478 DOI: 10.4081/ejh.2011.e23] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2011] [Accepted: 06/06/2011] [Indexed: 12/27/2022] Open
Abstract
The purpose of this study was to analyze the nicotinamide adenine dinucleotide phosphate - diaphorase (NADPH-d) activity in the rat jejunum after a mesenteric ischemia/reperfusion injury. Nitric oxide, synthetised from L-arginine by the enzyme nitric oxide synthase, is a nonadrenergic noncholinergic relaxant neurotransmitter of the intestinal smooth muscle. It plays an important role in the process of plasticity after the ischemia/reperfusion injury. Experimental animals were divided in two groups: the control group and the ischemic/reperfusion group, with different period of the reperfusion. The NADPH-d histochemical method has been used as a marker for the nitric oxide synthase. NADPH-d activity has been rapidly decreased in the neurons of both enteric nervous systems in plexuses of the jejunum after 1 h mesenteric ischemia and 1 h reperfusion. Differences were predominantly detected in the myenteric plexus; they were seen in change of the neuronal shape, in the arrangement of neurons and in intensity of their staining. The NADPH-d positivity was absent in the intestinal crypts. After 1 h ischemia and 24 h reperfusion, the NADPH-d activity was gradually increased, but it was lower in comparison with the control group. On the 30th day following the ischemia/reperfusion there were no changes in NADPH-d positivity compared with the control animals. These results indicated that the jejunal ischemia/reperfusion has affected the neurons of the enteric nervous system of adult rats and resulted in the early decrease of NADPH-d positivity 1 h of the reperfusion insult. The gradual increasing of NADPH-d activity in 24 h following the reperfusion could be considered as a result of the plasticity process. On the 30th day after the ischemia/reperfusion all histochemical changes were returned to the control levels.
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Affiliation(s)
- A Bolekova
- Department of Anatomy, Pavol Jozef Safarik University, Kosice, Slokav Republic.
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105
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Effects of creatine in a rat intestinal model of ischemia/reperfusion injury. Eur J Nutr 2011; 51:375-84. [DOI: 10.1007/s00394-011-0222-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2011] [Accepted: 06/11/2011] [Indexed: 01/13/2023]
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106
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Novel β-carboline-tripeptide conjugates attenuate mesenteric ischemia/reperfusion injury in the rat. Eur J Med Chem 2011; 46:2441-52. [DOI: 10.1016/j.ejmech.2011.03.029] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2011] [Revised: 02/28/2011] [Accepted: 03/14/2011] [Indexed: 12/24/2022]
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107
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Kannan KB, Colorado I, Reino D, Palange D, Lu Q, Qin X, Abungu B, Watkins A, Caputo FJ, Xu DZ, Semenza GL, Deitch EA, Feinman R. Hypoxia-inducible factor plays a gut-injurious role in intestinal ischemia reperfusion injury. Am J Physiol Gastrointest Liver Physiol 2011; 300:G853-61. [PMID: 21183660 PMCID: PMC3094138 DOI: 10.1152/ajpgi.00459.2010] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Gut injury and loss of normal intestinal barrier function are key elements in the paradigm of gut-origin systemic inflammatory response syndrome, acute lung injury, and multiple organ dysfunction syndrome (MODS). As hypoxia-inducible factor (HIF-1) is a critical determinant of the physiological and pathophysiological response to hypoxia and ischemia, we asked whether HIF-1 plays a proximal role in the induction of gut injury and subsequent lung injury. Using partially HIF-1α-deficient mice in an isolated superior mesenteric artery occlusion (SMAO) intestinal ischemia reperfusion (I/R) injury model (45 min SMAO followed by 3 h of reperfusion), we showed a direct relationship between HIF-1 activation and intestinal I/R injury. Specifically, partial HIF-1α deficiency attenuated SMAO-induced increases in intestinal permeability, lipid peroxidation, mucosal caspase-3 activity, and IL-1β mRNA levels. Furthermore, partial HIF-1α deficiency prevented the induction of ileal mucosal inducible nitric oxide synthase (iNOS) protein levels after SMAO and iNOS deficiency ameliorated SMAO-induced villus injury. Resistance to SMAO-induced gut injury was also associated with resistance to lung injury, as reflected by decreased levels of myeloperoxidase, IL-6 and IL-10 in the lungs of HIF-1α(+/-) mice. In contrast, a short duration of SMAO (15 min) followed by 3 h of reperfusion neither induced mucosal HIF-1α protein levels nor caused significant gut and lung injury in wild-type or HIF-1α(+/-) mice. This study indicates that intestinal HIF-1 activation is a proximal regulator of I/R-induced gut mucosal injury and gut-induced lung injury. However, the duration and severity of the gut I/R insult dictate whether HIF-1 plays a gut-protective or deleterious role.
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Affiliation(s)
- Kolenkode B. Kannan
- 1Department of Surgery, University of Medicine and Dentistry of New Jersey-New Jersey Medical School, Newark, New Jersey; and
| | - Iriana Colorado
- 1Department of Surgery, University of Medicine and Dentistry of New Jersey-New Jersey Medical School, Newark, New Jersey; and
| | - Diego Reino
- 1Department of Surgery, University of Medicine and Dentistry of New Jersey-New Jersey Medical School, Newark, New Jersey; and
| | - David Palange
- 1Department of Surgery, University of Medicine and Dentistry of New Jersey-New Jersey Medical School, Newark, New Jersey; and
| | - Qi Lu
- 1Department of Surgery, University of Medicine and Dentistry of New Jersey-New Jersey Medical School, Newark, New Jersey; and
| | - Xiaofa Qin
- 1Department of Surgery, University of Medicine and Dentistry of New Jersey-New Jersey Medical School, Newark, New Jersey; and
| | - Billy Abungu
- 1Department of Surgery, University of Medicine and Dentistry of New Jersey-New Jersey Medical School, Newark, New Jersey; and
| | - Anthony Watkins
- 1Department of Surgery, University of Medicine and Dentistry of New Jersey-New Jersey Medical School, Newark, New Jersey; and
| | - Francis J. Caputo
- 1Department of Surgery, University of Medicine and Dentistry of New Jersey-New Jersey Medical School, Newark, New Jersey; and
| | - Da-Zhong Xu
- 1Department of Surgery, University of Medicine and Dentistry of New Jersey-New Jersey Medical School, Newark, New Jersey; and
| | - Gregg L. Semenza
- 2Vascular Program, Institute for Cell Engineering, and McKusick-Nathans Institute of Genetic Medicine, John Hopkins University School of Medicine, Baltimore, Maryland
| | - Edwin A. Deitch
- 1Department of Surgery, University of Medicine and Dentistry of New Jersey-New Jersey Medical School, Newark, New Jersey; and
| | - Rena Feinman
- 1Department of Surgery, University of Medicine and Dentistry of New Jersey-New Jersey Medical School, Newark, New Jersey; and
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108
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Wang T, Leng YF, Zhang Y, Xue X, Kang YQ, Zhang Y. Oxidative stress and hypoxia-induced factor 1α expression in gastric ischemia. World J Gastroenterol 2011; 17:1915-22. [PMID: 21528068 PMCID: PMC3080729 DOI: 10.3748/wjg.v17.i14.1915] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2010] [Revised: 12/10/2010] [Accepted: 12/17/2010] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the relation of reactive oxygen species (ROS) to hypoxia induced factor 1α (HIF-1α) in gastric ischemia.
METHODS: The animal model of gastric ischemia reperfusion was established by placing an elastic rubber band on the proximal part of the bilateral lower limb for ligature for 3 h and reperfusion for 0, 1, 3, 6, 12 or 24 h. Ischemic post-conditioning, three cycles of 30-s reperfusion and 30-s femoral aortic reocclusion were conducted before reperfusion. Histological and immunohistochemical methods were used to assess the gastric oxidative damageand the expression of HIF1-α in gastric ischemia. The malondialdehyde (MDA) content and superoxide dismutase (SOD), xanthine oxidase (XOD) and myeloperoxidase (MPO) activities were determined by colorimetric assays.
RESULTS: Ischemic post-conditioning can reduce post-ischemic oxidativestressand the expression of HIF-1α of gastric tissue resulting from limb ischemia reperfusion injury. MDA, SOD, XOD and MPO were regarded as indexes for mucosal injuries from ROS, and ROS was found to affect the expression of HIF-1α under gastric ischemic conditions.
CONCLUSION: ROS affects HIF-1α expression under gastric ischemic conditions induced by limb ischemia reperfusion injury. Therefore, ROS can regulate HIF-1α expression in gastric ischemia.
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109
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Tanida S, Mizoshita T, Mizushima T, Sasaki M, Shimura T, Kamiya T, Kataoka H, Joh T. Involvement of oxidative stress and mucosal addressin cell adhesion molecule-1 (MAdCAM-1) in inflammatory bowel disease. J Clin Biochem Nutr 2011; 48:112-6. [PMID: 21373262 PMCID: PMC3045682 DOI: 10.3164/jcbn.10-41] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2010] [Accepted: 06/01/2010] [Indexed: 12/28/2022] Open
Abstract
The pathophysiology of inflammatory bowel disease involves excessive immune effects of inflammatory cells against gut microbes. In genetically predisposed individuals, these effects are considered to contribute to the initiation and perpetuation of mucosal injury. Oxidative stress is a fundamental tissue-destructive mechanisms that can occur due to the reactive oxygen species and reactive nitrogen metabolites which are released in abundance from numerous inflammatory cells that have extravasated from lymphatics and blood vessels to the lamina propria. This extravasation is mediated by interactions between adhesion molecules including mucosal addressin cell adhesion molecule-1 and vascular cell adhesion molecule-1 on the surface of lymphocytes or neutrophils and their ligands on endothelial cells. Thus, reactive oxygen species and adhesion molecules play an important role in the development of inflammatory bowel disease. The present review focuses on the involvement of oxidative stress and adhesion molecules, in particular mucosal addressin cell adhesion molecule-1, in inflammatory bowel disease.
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Affiliation(s)
- Satoshi Tanida
- Department of Gastroenterology and Metabolism, Graduate School of Medical Sciences, Nagoya City University, 1 Kawasumi, Mizuho, Nagoya, Aichi 467-8601, Japan
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110
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Chen J, Chen X, Qin J. Effects of polysaccharides of the Euphoria Longan (Lour.) Steud on focal cerebral ischemia/reperfusion injury and its underlying mechanism. Brain Inj 2011; 25:292-9. [DOI: 10.3109/02699052.2010.546824] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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111
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Rons formation under restrictive reperfusion does not affect organ dysfunction early after hemorrhage and trauma. Shock 2010; 34:384-9. [PMID: 20844412 DOI: 10.1097/shk.0b013e3181d8e578] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Reactive oxygen species have been implicated in the pathophysiology of early reperfusion. We aimed to determine 1) reactive oxygen and nitrogen species (RONS) formation in organs of rats and 2) its pathophysiological relevance during a phase of restrictive reperfusion after hemorrhagic/traumatic shock (HTS). Fifty-seven male Sprague-Dawley rats were subjected to a clinically relevant HTS model, featuring laparotomy, bleeding, and a phase of restrictive reperfusion. The RONS scavenger 1-hydroxy-3-carboxy-2,2,5,5-tetramethyl-pyrrolidine hydrochloride (continuous i.v. infusion) and electron paramagnetic resonance spectroscopy were applied for RONS (primarily superoxide and peroxynitrite) detection. Compared with sham-operated animals, the organ-specific distribution of RONS changed during restrictive reperfusion after HTS. Reactive oxygen and nitrogen species formation increased during restrictive reperfusion in red blood cells and ileum only but decreased in the kidney and remained unchanged in other organs. Hemorrhagic traumatic shock followed by restrictive reperfusion resulted in metabolic acidosis, dysfunction of liver and kidney, and increased oxidative burst capacity in circulating cells. Plasma RONS correlated with shock severity and organ dysfunction. However, RONS scavenging neither affected organ dysfunction nor oxidative burst capacity nor myeloperoxidase activity in lung when compared with the shock controls. In summary, a phase of restrictive reperfusion does not increase RONS formation in most organs except in intestine and red blood cells. Moreover, scavenging of RONS does not affect the early organ dysfunction manifested at the end of a phase of restrictive reperfusion.
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112
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Yokota J, Kitaoka T, Jobu K, Takuma D, Hamada A, Onogawa M, Yoshioka S, Kyotani S, Miyamura M. Eriobotrya japonica seed extract and deep sea water protect against indomethacin-induced gastric mucosal injury in rats. J Nat Med 2010; 65:9-17. [PMID: 20640522 DOI: 10.1007/s11418-010-0445-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2009] [Accepted: 06/18/2010] [Indexed: 11/30/2022]
Abstract
We have previously reported that Eriobotrya japonica seed extract (ESE) is effective for the treatment of various gastric mucosal injuries. For the pharmaceutical preparation of ESE, we are evaluating deep sea water (DSW), which contains trace elements and has a homeostasis-enhancing effect, as the solvent. In this study, we prepared DSW containing ESE (ESE + DSW) and evaluated its usefulness for the prevention of gastric mucosal injuries using non-steroidal anti-inflammatory drug-induced acute gastric mucosal injury models in male Wistar/ST rats. Gastric mucosal injury models were prepared by administering indomethacin at 30 mg/kg orally to the rats after a 24-h fast. ESE was prepared by a routine procedure and administered at the same concentration as in the administration to humans. The rats were divided into the following 6 groups: ESE, DSW, ESE + DSW, tap water (control), rebamipide (positive control), or untreated. Gastric mucosal injuries were evaluated by measuring the injury area, lipid peroxide (LPO) level, antioxidative enzyme level, and volume of mucus. The injury area and LPO levels in plasma and gastric tissue were significantly reduced in the ESE and ESE + DSW groups compared with the control and DSW group. The plasma and gastric tissue antioxidative enzyme levels were significantly higher in the ESE and ESE + DSW groups than in the control group. These results suggest that DSW, when combined with ESE, inhibits antioxidative enzymes, and enhances the gastric mucosal protecting effect of ESE.
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Affiliation(s)
- Junko Yokota
- Department of Pharmacy, Kochi Medical School Hospital, Kohasu, Oko-cho, Nankoku, Kochi 783-8505, Japan.
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113
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Attenuation of ischemia–reperfusion injury with Marrubium cordatum treatment in ovarian torsion–detorsion model in rabbits. Fertil Steril 2010; 93:1455-63. [DOI: 10.1016/j.fertnstert.2009.03.041] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2009] [Revised: 03/02/2009] [Accepted: 03/10/2009] [Indexed: 12/22/2022]
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114
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Tsukamoto T, Chanthaphavong RS, Pape HC. Current theories on the pathophysiology of multiple organ failure after trauma. Injury 2010; 41:21-6. [PMID: 19729158 DOI: 10.1016/j.injury.2009.07.010] [Citation(s) in RCA: 119] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2009] [Accepted: 07/13/2009] [Indexed: 02/02/2023]
Abstract
Despite the enormous efforts to elucidate the mechanisms of the development of multiple organ failure (MOF) following trauma, MOF following trauma is still a leading cause of late post-injury death and morbidity. Now, it has been proven that excessive systemic inflammation following trauma participates in the development of MOF. Fundamentally, the inflammatory response is a host-defence response; however, on occasion, this response turns around to cause deterioration to host depending on exo- and endogenic factors. Through this review we aim to describe the pathophysiological approach for MOF after trauma studied so far and also introduce the prospects of this issue for the future.
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Affiliation(s)
- Takeshi Tsukamoto
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.
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115
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Boobis A, Watelet JB, Whomsley R, Benedetti MS, Demoly P, Tipton K. Drug interactions. Drug Metab Rev 2009; 41:486-527. [PMID: 19601724 DOI: 10.1080/10837450902891550] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Drugs for allergy are often taken in combination with other drugs, either to treat allergy or other conditions. In common with many pharmaceuticals, most such drugs are subject to metabolism by P450 enzymes and to transmembrane transport. This gives rise to considerable potential for drug-drug interactions, to which must be added consideration of drug-diet interactions. The potential for metabolism-based drug interactions is increasingly being taken into account during drug development, using a variety of in silico and in vitro approaches. Prediction of transporter-based interactions is not as advanced. The clinical importance of a drug interaction will depend upon a number of factors, and it is important to address concerns quantitatively, taking into account the therapeutic index of the compound.
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Affiliation(s)
- Alan Boobis
- Department of Experimental Medicine and Toxicology, Division of Medicine, Imperial College London, Hammersmith Campus, London.
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116
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The effects of iloprost, a prostacyclin analogue, in experimental ischaemia/reperfusion injury in rat ovaries. ACTA ACUST UNITED AC 2009; 61:519-27. [DOI: 10.1016/j.etp.2009.06.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2009] [Revised: 05/08/2009] [Accepted: 06/22/2009] [Indexed: 11/18/2022]
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117
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Tai Y, Inoue H, Sakurai T, Yamada H, Morito M, Ide F, Mishima K, Saito I. Protective Effect of Lecithinized SOD on Reactive Oxygen Species-Induced Xerostomia. Radiat Res 2009; 172:331-8. [DOI: 10.1667/rr1557.1] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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118
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Yeh CT, Chiu HF, Yen GC. Protective effect of sulforaphane on indomethacin-induced cytotoxicity via
heme oxygenase-1 expression in human intestinal Int 407 cells. Mol Nutr Food Res 2009; 53:1166-76. [DOI: 10.1002/mnfr.200800558] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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119
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Ikemura K, Iwamoto T, Okuda M. Altered functions and expressions of drug transporters in liver, kidney and intestine in disorders of local and remote organs: possible role of oxidative stress in the pathogenesis. Expert Opin Drug Metab Toxicol 2009; 5:907-20. [DOI: 10.1517/17425250903008525] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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120
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Kart A, Cigremis Y, Ozen H, Dogan O. Caffeic acid phenethyl ester prevents ovary ischemia/reperfusion injury in rabbits. Food Chem Toxicol 2009; 47:1980-4. [PMID: 19457442 DOI: 10.1016/j.fct.2009.05.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2009] [Revised: 05/01/2009] [Accepted: 05/11/2009] [Indexed: 01/16/2023]
Abstract
Protective effect of caffeic acid phenethyl ester (CAPE) on ovary ischemia/reperfusion (IR) injury was investigated in this study. Twenty four New Zealand rabbits were divided into 4 groups as follows: group S served as sham. Group C was intraperitoneally injected with CAPE (8.5mg/kg). In groups E+IR and C+IR, 1% ethanol and CAPE was given intraperitoneally before torsion, respectively. Then, the ovaries were subjected to IR in both groups. Ovary reduced glutathione (GSH) level and glutathione peroxidase (GSH-Px) activity in group E+IR were significantly reduced compared to that of group S. GSH level and GSH-Px activity was significantly increased in group C+I/R. Thiobarbituric acid reactive substances (TBARS) and catalase (CAT) activity in group E+I/R was significantly higher than in group S. CAT activity was decreased to normal levels by CAPE treatment in group C+I/R, while TBARS in group C+IR was significantly reduced compared to that of E+IR. According to histopathological examination, severe congestion, hemorrhage, edema and leukocyte infiltration were observed in E+I/R group. CAPE prominently reduced degenerative effects of IR injury thus it alleviates free radical damage. In conclusion, CAPE which is able to prevent IR-induced injury in the ovaries may be of therapeutic value before the surgical correction.
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Affiliation(s)
- A Kart
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, University of Kafkas, 36100 Kars, Turkey.
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121
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EMRE S, GUL M, ATES B, ESREFOGLU M, KOC B, ERDOGAN A, YESILADA E. Comparison of the Protective Effects of Prostaglandin Analogues in the Ischemia and Reperfusion Model of Rabbit Eyes. Exp Anim 2009; 58:505-13. [DOI: 10.1538/expanim.58.505] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Affiliation(s)
- Sinan EMRE
- Department of Ophthalmology, Faculty of Medicine, Inonu University
- Department of Ophthalmology, Faculty of Medicine, Celal Bayar University
| | - Mehmet GUL
- Department of Histology and Embryology, Faculty of Medicine, Inonu University
| | - Burhan ATES
- Department of Chemistry, Faculty of Science and Art, Inonu University
| | - Mukaddes ESREFOGLU
- Department of Histology and Embryology, Faculty of Medicine, Inonu University
| | - Bekir KOC
- Department of Ophthalmology, Faculty of Medicine, Inonu University
| | - Ali ERDOGAN
- Department of Chemistry, Faculty of Science and Art, Inonu University
| | - Elif YESILADA
- Department of Medical Biology and Genetics, Faculty of Medicine, Inonu University
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122
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Kim HJ, Park MK, Rhee KH, Youn HS, Ko SH, Kim HS, Chung MH. Long-Term Intake of High Doses of Vitamin C Down-regulates Anti-oxidant Enzymes in Human Erythrocytes. Prev Nutr Food Sci 2008. [DOI: 10.3746/jfn.2008.13.3.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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123
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Jin W, Wang HD, Hu ZG, Yan W, Chen G, Yin HX. Transcription factor Nrf2 plays a pivotal role in protection against traumatic brain injury-induced acute intestinal mucosal injury in mice. J Surg Res 2008; 157:251-60. [PMID: 19394962 DOI: 10.1016/j.jss.2008.08.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2008] [Revised: 07/29/2008] [Accepted: 08/01/2008] [Indexed: 11/25/2022]
Abstract
BACKGROUND Traumatic brain injury (TBI) can induce an acute intestinal mucosal injury. Nuclear factor erythroid 2-related factor 2 (Nrf2) has a unique role in many physiological stress processes, but its contribution to intestinal mucosal injury after TBI remains to be determined. MATERIALS AND METHODS Wildtype Nrf2 (+/+) and Nrf2 (-/-) deficient mice were subjected to a moderately severe weight-drop impact head injury. Intestinal mucosal morphological changes, plasma endotoxin, intestinal permeability, apoptosis, inflammatory cytokines, and antioxidant/detoxifying enzymes were measured at 24 hours after TBI. RESULTS Nrf2 deficient mice were found to be more susceptible to TBI-induced acute intestinal mucosal injury, as characterized by the higher increase in gut structure damage, plasma endotoxin, intestinal permeability, and apoptosis after TBI. This exacerbation of intestinal mucosal injury in Nrf2 deficient mice was associated with increased intestinal mRNA and protein expression of inflammatory cytokines such as tumor necrosis factor-alpha, interleukin-1beta and interleukin-6, and with decreased intestinal mRNA expression and activity levels of antioxidant and detoxifying enzymes including NAD(P)H: quinone oxidoreductase 1 (NQO1) and glutathione S-transferase alpha-1 (GST-alpha1), compared with their wildtype Nrf2 (+/+) counterparts after TBI. CONCLUSIONS We show for the first time that mice lacking Nrf2 are more susceptible to TBI-induced acute intestinal mucosal injury. Our data suggests that Nrf2 plays an important role in protecting TBI-induced intestinal mucosal injury, possibly by regulating of inflammatory cytokines and inducing of antioxidant and detoxifying enzymes.
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Affiliation(s)
- Wei Jin
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu Province, PR China
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