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Sharapov MG, Fesenko EE, Novoselov VI. The Role of Peroxiredoxins in Various Diseases Caused by Oxidative Stress and the Prospects of Using Exogenous Peroxiredoxins. Biophysics (Nagoya-shi) 2018. [DOI: 10.1134/s0006350918040164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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Ikejiri AT, Somaio Neto F, Bertoletto PR, Chaves JC, WakateTeruya AK, Kassuya CAL, Taha MO, Fagundes DJ. Effect of hyperbaric oxygenation on the expression of glutathione peroxidase 4 and lactoperoxidase genes in the lung of isogenic mice after ischemia/reperfusion injury in the small bowel. Acta Cir Bras 2018; 33:462-471. [PMID: 29924206 DOI: 10.1590/s0102-865020180050000009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 04/13/2018] [Indexed: 11/21/2022] Open
Abstract
PURPOSE To evaluate the effect of hyperbaric oxygenation (HBO) on the expression of the genes antioxidant glutathione peroxidase 4 (Gpx4) and lactoperoxidase (Lpo) in the lung of mice subjected to intestinal ischemia and reperfusion (IIR). METHODS Control group (CG) in which were subjected to anesthesia, laparotomy and observation for 120 minutes; an ischemia and reperfusion group (IRG) subjected to anesthesia, laparotomy, small bowel ischemia for 60 minutes and reperfusion for 60 minutes; and three groups treated with HBO during ischemia (HBOG + I), during reperfusion (HBOG + R) and during ischemia and reperfusion (HBOG + IR). Studied 84 genes of oxidative stress by the method (RT-qPCR). Genes with expression levels three times below or above the threshold cycle were considered significantly hypoexpressed or hyperexpressed, respectively (Student's t-test p<0.05). RESULTS Gpx4 and Lpo were hiperexpressed on IRG, showing a correlation with these genes with lung oxidative stress. Treated with HBO, there was a significant reduction on genic expression on HBOG+I. CONCLUSION Hyperbaric oxygenation showed to be associated with decreased expression of these antioxidant genes, suggesting a beneficial effect on the mechanism of pulmonary oxidative stress whenever applied during the ischemia.
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Affiliation(s)
| | | | | | | | | | | | - Murched Omar Taha
- Division of Surgical Techniques and Experimental Surgery, Department of Surgery, Universidade Federal de São Paulo, Brazil
| | - Djalma José Fagundes
- Division of Surgical Techniques and Experimental Surgery, Department of Surgery, UNIFESP, Sao Paulo, SP, Brazil
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Sharapov MG, Gordeeva AE, Goncharov RG, Tikhonova IV, Ravin VK, Temnov AA, Fesenko EE, Novoselov VI. The Effect of Exogenous Peroxiredoxin 6 on the State of Mesenteric Vessels and the Small Intestine in Ischemia–Reperfusion Injury. Biophysics (Nagoya-shi) 2018. [DOI: 10.1134/s0006350917060239] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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Oliveira TRRD, Oliveira GFD, Simões RS, Feitosa SM, Tikazawa EH, Monteiro HP, Fagundes DJ, Taha MO. The expression of endothelial and inducible nitric oxide synthase and apoptosis in intestinal ischemia and reperfusion injury under the action of ischemic preconditioning and pentoxifylline. Acta Cir Bras 2017; 32:935-948. [PMID: 29236798 DOI: 10.1590/s0102-865020170110000005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Accepted: 10/08/2017] [Indexed: 01/15/2023] Open
Abstract
PURPOSE To investigate the expression of nitric oxide synthase (NOS) and apoptosis associated with ischemic preconditioning (IPC) and pentoxifylline (PTX) in intestinal ischemia (I) and reperfusion (R) injury. METHODS Thirty male rats were assigned to 5 groups: (CG), no clamping of the superior mesenteric artery (90 minutes); (IR-SS) saline + ischemia (30 minutes) + reperfusion (60 minutes); (IR-PTX) PTX + ischemia (30 minutes) + reperfusion (60 minutes); (IPC-IR-SS) 5 minutes of ischemia + 5 minutes of reperfusion (IPC) + saline + I(30 minutes)+R(60 minutes); and (IPC-IR-PTX) IPC + PTX + I(30 minutes)+ R(60 minutes). RESULTS The application of IPC and PTX showed a significantly lower immunohistochemistry reaction for active caspase-3 (P<0.05) compared to IR+SS. The number of cells immunoreactive to BCL-2 was higher in the IR-PTX group (P>0.05). The NOS-2 expression (qRTPCR) in the IR-PTX group (P<0.05) was higher than the values for the IPC+IR-SS and IPC-IR-PTX groups. The NOS-3 expression was significantly upper in the IPC-IR-PTX group than in the CG (P<0.05), the IR-SS (P<0.05) and the IR-PTX (P<0.05) groups. CONCLUSIONS The BCL-2 and active caspase-3 showed beneficial effects on PTX and IPC. The expression of NOS-2 and NOS-3 in the IPC and IPC-PTX groups showed no synergistic effect.
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Affiliation(s)
- Teresinha Regina Ribeiro de Oliveira
- PhD, Associate Professor, School of Health Sciences, Universidade Federal da Grande Dourados (UFGD), Brazil. Acquisition, analysis and interpretation of data; technical procedures; statistical analysis; manuscript preparation and writing
| | - Geraldo Ferreira de Oliveira
- PhD, Associate Professor, School of Health Sciences, UFGD, Dourados-MS, Brazil. Acquisition of data, technical procedures, manuscript writing
| | - Ricardo Santos Simões
- PhD, Department of Morfology and Genetic, Universidade de São Paulo (UNIFESP), Brazil. Immunohistochemical examinations, analysis of data
| | - Suellen Maurim Feitosa
- PhD, Department Gynecology, UNIFESP, Sao Paulo-SP, Brazil. Acquisition, analysis and interpretation of data; technical procedures
| | - Eduardo Hiroshi Tikazawa
- MD, Department Public Health, School of Medicine, Universidade Estadual de Campinas (UNICAMP), Brazil. Acquisition of data, technical procedures, manuscript preparation
| | - Hugo Pequeno Monteiro
- PhD, Full Professor, Department of Biochemistry, UNIFESP, Sao Paulo-SP, Brazil. Analysis and interpretation of data, manuscript preparation, critical revision
| | - Djalma José Fagundes
- PhD, Full Professor, Division of Surgical Techniques and Experimental Surgery, Department of Surgery, UNIFESP, Sao Paulo-SP, Brazil. Analysis and interpretation of data, manuscript preparation, critical revision
| | - Murched Omar Taha
- PhD, Associate Professor, Division of Surgical Techniques and Experimental Surgery, Department of Surgery, UNIFESP, Sao Paulo-SP, Brazil. Conception and design of the study, critical revision, final approval
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Somaio F, Ikejiri AT, Bertoletto PR, Chaves JC, Teruya R, Fagundes DJ. Hyperbaric oxygenation and the genic expression related to oxidative stress in the heart of mice during intestinal ischemia and reperfusion. Acta Cir Bras 2017; 32:913-923. [PMID: 29236796 DOI: 10.1590/s0102-865020170110000003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 10/08/2017] [Indexed: 11/22/2022] Open
Abstract
PURPOSE To investigate the effects of hyperbaric oxygenation (HBO) on intestinal ischemia and reperfusion (IR) injury, we evaluated the expression of 84 genes related to oxidative stress and the antioxidant response in mouse hearts. METHODS Four groups were subjected to 60 minutes of intestinal ischemia followed by 60 minutes of reperfusion: IRG, ischemia and reperfusion group without HBO; HBO-IG, which received HBO during ischemia; HBO-RG, which received HBO during reperfusion; and HBO-IRG, which received HBO during ischemia and reperfusion. The control group (CG) underwent anesthesia and laparotomy and was observed for 120 minutes. The (RT-qPCR) method was applied. Genes with expression levels three times below or above the threshold cycle were considered significantly hypoexpressed or hyperexpressed, respectively (Student's t-test p<0.05). RESULTS Eight genes (9.52%) were hyperexpressed in the IRG. When the HBO groups were compared to the IRG, we found a decrease in the expression of eight genes in the HBO-IG, five genes in the HBO-RG, and seven genes in the HBO-IRG. CONCLUSION The reduction in the expression of genes related to oxidative stress and antioxidant defense following HBO in mouse hearts resulting from intestinal IR injury was more favorable during the ischemic period than during the reperfusion period.
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Affiliation(s)
- Frederico Somaio
- PhD, Associate Professor, Medical School, Universidade Federal da Grande Dourados (UFGD), Brazil. Acquisition, analysis and interpretation of data; technical procedures; statistical analysis; manuscript preparation and writing
| | - Adauto Tsutomo Ikejiri
- Msc, Assistant Professor, Medical School, UFGD, Dourados-MS, Brazil. Acquisition, analysis and interpretation of data; technical procedures
| | - Paulo Roberto Bertoletto
- PhD, Associate Professor, Medical School, UFGD, Dourados-MS, Brazil. Acquisition, analysis and interpretation of data, technical procedures
| | - José Carlos Chaves
- PhD, Assistant Professor, Medical School, UFGD, Dourados-MS, Brazil. Acquisition, analysis and interpretation of data, technical procedures
| | - Roberto Teruya
- PhD, Associate Professor, Medical School, Universidade Federal do Mato Grosso do Sul (UFMS), Campo Grande-MS, Brazil. Acquisition, analysis and interpretation of data; technical procedures
| | - Djalma José Fagundes
- PhD, Full Professor, Division of Surgical Techniques and Experimental Surgery, Department of Surgery, Universidade Federal de São Paulo (UNIFESP), Brazil. Conception and design of the study, critical revision, final approval
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Propofol Attenuates Small Intestinal Ischemia Reperfusion Injury through Inhibiting NADPH Oxidase Mediated Mast Cell Activation. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:167014. [PMID: 26246867 PMCID: PMC4515292 DOI: 10.1155/2015/167014] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Accepted: 09/07/2014] [Indexed: 12/14/2022]
Abstract
Both oxidative stress and mast cell (MC) degranulation participate in the process of small intestinal ischemia reperfusion (IIR) injury, and oxidative stress induces MC degranulation. Propofol, an anesthetic with antioxidant property, can attenuate IIR injury. We postulated that propofol can protect against IIR injury by inhibiting oxidative stress subsequent from NADPH oxidase mediated MC activation. Cultured RBL-2H3 cells were pretreated with antioxidant N-acetylcysteine (NAC) or propofol and subjected to hydrogen peroxide (H2O2) stimulation without or with MC degranulator compound 48/80 (CP). H2O2 significantly increased cells degranulation, which was abolished by NAC or propofol. MC degranulation by CP further aggravated H2O2 induced cell degranulation of small intestinal epithelial cell, IEC-6 cells, stimulated by tryptase. Rats subjected to IIR showed significant increases in cellular injury and elevations of NADPH oxidase subunits p47(phox) and gp91(phox) protein expression, increases of the specific lipid peroxidation product 15-F2t-Isoprostane and interleukin-6, and reductions in superoxide dismutase activity with concomitant enhancements in tryptase and β-hexosaminidase. MC degranulation by CP further aggravated IIR injury. And all these changes were attenuated by NAC or propofol pretreatment, which also abrogated CP-mediated exacerbation of IIR injury. It is concluded that pretreatment of propofol confers protection against IIR injury by suppressing NADPH oxidase mediated MC activation.
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Organ-Protective Effects of Red Wine Extract, Resveratrol, in Oxidative Stress-Mediated Reperfusion Injury. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:568634. [PMID: 26161238 PMCID: PMC4487914 DOI: 10.1155/2015/568634] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Accepted: 10/09/2014] [Indexed: 12/25/2022]
Abstract
Resveratrol, a polyphenol extracted from red wine, possesses potential antioxidative and anti-inflammatory effects, including the reduction of free radicals and proinflammatory mediators overproduction, the alteration of the expression of adhesion molecules, and the inhibition of neutrophil function. A growing body of evidence indicates that resveratrol plays an important role in reducing organ damage following ischemia- and hemorrhage-induced reperfusion injury. Such protective phenomenon is reported to be implicated in decreasing the formation and reaction of reactive oxygen species and pro-nflammatory cytokines, as well as the mediation of a variety of intracellular signaling pathways, including the nitric oxide synthase, nicotinamide adenine dinucleotide phosphate oxidase, deacetylase sirtuin 1, mitogen-activated protein kinase, peroxisome proliferator-activated receptor-gamma coactivator 1 alpha, hemeoxygenase-1, and estrogen receptor-related pathways. Reperfusion injury is a complex pathophysiological process that involves multiple factors and pathways. The resveratrol is an effective reactive oxygen species scavenger that exhibits an antioxidative property. In this review, the organ-protective effects of resveratrol in oxidative stress-related reperfusion injury will be discussed.
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Brasileiro JL, Ramalho RT, Aydos RD, Silva IS, Takita LC, Marks G, Assis PVD. Pentoxifylline and prostaglandin E1 action on ischemia and reperfusion of small intestine tissue in rats. An immunohistochemical study. Acta Cir Bras 2015; 30:115-9. [DOI: 10.1590/s0102-86502015002000005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 01/16/2015] [Indexed: 11/22/2022] Open
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Gonzalez LM, Moeser AJ, Blikslager AT. Animal models of ischemia-reperfusion-induced intestinal injury: progress and promise for translational research. Am J Physiol Gastrointest Liver Physiol 2015; 308:G63-75. [PMID: 25414098 PMCID: PMC4297854 DOI: 10.1152/ajpgi.00112.2013] [Citation(s) in RCA: 161] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Research in the field of ischemia-reperfusion injury continues to be plagued by the inability to translate research findings to clinically useful therapies. This may in part relate to the complexity of disease processes that result in intestinal ischemia but may also result from inappropriate research model selection. Research animal models have been integral to the study of ischemia-reperfusion-induced intestinal injury. However, the clinical conditions that compromise intestinal blood flow in clinical patients ranges widely from primary intestinal disease to processes secondary to distant organ failure and generalized systemic disease. Thus models that closely resemble human pathology in clinical conditions as disparate as volvulus, shock, and necrotizing enterocolitis are likely to give the greatest opportunity to understand mechanisms of ischemia that may ultimately translate to patient care. Furthermore, conditions that result in varying levels of ischemia may be further complicated by the reperfusion of blood to tissues that, in some cases, further exacerbates injury. This review assesses animal models of ischemia-reperfusion injury as well as the knowledge that has been derived from each to aid selection of appropriate research models. In addition, a discussion of the future of intestinal ischemia-reperfusion research is provided to place some context on the areas likely to provide the greatest benefit from continued research of ischemia-reperfusion injury.
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Affiliation(s)
- Liara M. Gonzalez
- 1Department of Clinical Sciences, Center for Comparative Medicine and Translational Research, North Carolina State University, Raleigh, North Carolina; and
| | - Adam J. Moeser
- 2Department of Population Health and Pathobiology, Center for Comparative Medicine and Translational Research, North Carolina State University, Raleigh, North Carolina
| | - Anthony T. Blikslager
- 1Department of Clinical Sciences, Center for Comparative Medicine and Translational Research, North Carolina State University, Raleigh, North Carolina; and
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Teruya R, Ikejiri AT, Somaio Neto F, Chaves JC, Bertoletto PR, Taha MO, Fagundes DJ. Expression of oxidative stress and antioxidant defense genes in the kidney of inbred mice after intestinal ischemia and reperfusion. Acta Cir Bras 2014; 28:848-55. [PMID: 24316858 DOI: 10.1590/s0102-86502013001200007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Accepted: 11/26/2013] [Indexed: 11/22/2022] Open
Abstract
PURPOSE To determine the gene expressions profile related to the oxidative stress and the antioxidant response in the kidneys of mice subjected to intestinal ischemia and reperfusion. METHODS Twelve inbred mice (C57BL/6) were randomly assigned to one of two groups: the control group (CG) underwent anesthesia and was observed for 120 min and the ischemia/reperfusion group (IRG), animals were anesthetized and subjected to laparotomy and ischemia for 60 minutes followed by 60 minutes of reperfusion. The expressions of 84 genes from the kidney were determined by the Reverse Transcription qualitative Polymerase Chain Reaction (RT-qPCR). All genes that were up regulated by more than threefold using the algorithm [2(ΔΔCt)] were considered statically significant (p<0.05). RESULTS In the IRG group 29 (34.52%) of 84 genes, were up regulated by more than threefold. The genes that were differentially up regulated in the glutathione peroxidase cluster (10 genes): were Gpx2 and Gpx7. The genes that were up regulated in the peroxidase cluster (16 genes) were following: Duox1, Epx, Lpo, Mpo, Ptgs2, Rag2, Serpinb1b, Tmod1 and Tpo. The genes that up regulated in the reactive oxygen species cluster (16 genes): Il19, Il22, Nos2, Nox1, Noxa1, Noxo1, Recql4 and Sod2. The genes that were up regulated in the oxidative stress cluster (22 genes) were: Mpp4, Nudt15, Upc3 and Xpa. The genes that were up regulated in the oxygen carriers cluster (12 genes) were: Hbq1, Mb, Ngb, Slc38a1 and Xirp1. The peroxiredoxins genes (10) showed no consistent differential regulation. CONCLUSION The genes related to oxidative stress and antioxidant defense showed increased expression in renal tissue trigged intestinal ischemia and reperfusion.
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Brasileiro JL, Inoye CM, Aydos RD, Silva IS, Falcão GR, Marks G, Pereira DM. Ischemia and reperfusion of rat small intestine using pentoxyfilline and prostaglandin E1. Acta Cir Bras 2014; 28:767-73. [PMID: 24316743 DOI: 10.1590/s0102-86502013001100004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Accepted: 10/14/2013] [Indexed: 11/22/2022] Open
Abstract
PURPOSE To investigate the small intestinal tissue alterations in rats submitted to ischemia and tissue reperfusion using pentoxyfilline or prostaglandin E1. METHODS Thirty five Wistar rats were used, distributed into group control (A) n=10 were submitted to intestinal ischemia and reperfusion during 60 minutes and no one drug have been utilized. In the group pentoxyfilline (B) n=10 have been utilized during tissue ischemia and reperfusion as well as prostaglandin E1 (C) n=10, but separately. In the group sham (D) n=5, the animals were submitted to surgical. After euthanasia of the animals, a segment of the small intestine was cut, stained by hematoxilin-eosin and histological analysis according to Chiu criteria. RESULTS Histological results showed that using pentoxyflline or prostaglandin E1 the results during tissue reperfusion were better, since the levels of criteria from Chiu that predominated were level 2 and 3, indicating less tissue damage in comparison to the control group (group A) that showed levels 4 and 5, what means more severe histological tissue alterations. CONCLUSION Use of pentoxyfilline or prostaglandin E1 promoted a beneficial effect during intestinal reperfusion, demonstrated by less severe histological lesions in the small intestine mucosa of rats submitted to ischemia and tissue reperfusion when helped by the drugs.
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Ikejiri AT, Somaio Neto F, Chaves JC, Bertoletto PR, Teruya R, Bertoletto ER, Taha MO, Fagundes DJ. Gene expression profile of oxidative stress in the lung of inbred mice after intestinal ischemia/reperfusion injury. Acta Cir Bras 2014; 29:186-92. [DOI: 10.1590/s0102-86502014000300007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Accepted: 02/18/2014] [Indexed: 11/21/2022] Open
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Somaio Neto F, Ikejiri AT, Bertoletto PR, Chaves JCB, Teruya R, Fagundes DJ, Taha MO. Gene expression related to oxidative stress in the heart of mice after intestinal ischemia. Arq Bras Cardiol 2013; 102:165-73. [PMID: 24346830 PMCID: PMC3987340 DOI: 10.5935/abc.20130240] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Accepted: 09/04/2013] [Indexed: 01/30/2023] Open
Abstract
Background Intestinal ischemia-reperfusion is a frequent clinical event associated to injury
in distant organs, especially the heart. Objective To investigate the gene expression of oxidative stress and antioxidant defense in
the heart of inbred mice subjected to intestinal ischemia and reperfusion (IR).
Methods Twelve mice (C57BL / 6) were assigned to: IR Group (GIR) with 60 minutes of
superior mesenteric artery occlusion followed by 60 minutes of reperfusion;
Control Group (CG) which underwent anesthesia and laparotomy without IR procedure
and was observed for 120 minutes. Intestine and heart samples were processed using
the RT-qPCR / Reverse transcriptase-quantitative Polymerase Chain Reaction method
for the gene expression of 84 genes related to oxidative stress and oxidative
defense (Student's "t" test, p < 0.05). Results The intestinal tissue (GIR) was noted to have an up-regulation of 65 genes
(74.71%) in comparison to normal tissue (CG), and 37 genes (44.04%) were
hyper-expressed (greater than three times the threshold allowed by the algorithm).
Regarding the remote effects of intestinal I/R in cardiac tissue an up-regulation
of 28 genes (33.33%) was seen, but only eight genes (9.52%) were hyper-expressed
three times above threshold. Four (7.14%) of these eight genes were expressed in
both intestinal and cardiac tissues. Cardiomyocytes with smaller and pyknotic
nuclei, rich in heterochromatin with rare nucleoli, indicating cardiac distress,
were observed in the GIR. Conclusion Intestinal I/R caused a statistically significant over expression of 8 genes
associated with oxidative stress in remote myocardial tissue.
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Affiliation(s)
| | | | | | | | - Roberto Teruya
- Universidade Federal do Mato Grosso do Sul, Campo Grande, MS, Brasil
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Cáceres F, Castañon M, Lerena J, Cusi V, Badosa J, Morales L. [Mesenteric flow in an experimental model of ischaemia-reperfusion in rats]. An Pediatr (Barc) 2013; 80:151-8. [PMID: 23831202 DOI: 10.1016/j.anpedi.2013.05.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Revised: 04/29/2013] [Accepted: 05/19/2013] [Indexed: 11/28/2022] Open
Abstract
INTRODUCTION Maintained acute occlusion followed by reperfusion of the superior mesenteric artery (SMA) in a few hours can trigger irreversible bowel damage. The aim of the study was to determine the changes in mesenteric flow measured by colour Doppler Ultrasound and correlating with histological lesions in an experimental model of ischaemia-reperfusion. METHOD AND MATERIAL Three groups of Sprague-Dawley 17 day-old rats were studied (control, ischemia and reperfusion). The model used was ischaemia-reperfusion over the SMA. Intra-abdominal ultrasound was then performed. The parameters recorded were: Maximum systolic velocity (MSV), pulsatility index (PI), resistance (RI) and systole-diastole (S/D). The histological variables were: intestinal lesion (Wallace/Keenan-Chiu scale), morphometrics (mean villus height [MVH]), and goblet cells. The Spearman (rs) correlation was used. RESULTS The MSV in the reperfusion group was 74.3 cm/s, the PI 7.33 and S/D 25.75 in the SMA, which were higher than the controls (41.35 cm/s; 3.12 and 12.45, respectively). A direct association (P<.01) was found between MSV, PI and S/D regarding: Wallace/Kennan scoring system (rs = 0.655; rs = 0.593; rs = 0.63) and the Chiu (rs = 0.569; rs = 0.522; rs = 0.47). While the correlation was the reverse (P<.01) when associated with the MVH (rs = -0,495; rs = -0,452; rs = -0,459) and goblet cells of the colon (rs = -0,525; rs = -0,45; rs = -0,518). CONCLUSIONS The reperfusion phase increased mesenteric flow expressed by the MSV and PI and could significantly predict the potential bowel damage at macroscopic and microscopic level.
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Affiliation(s)
- F Cáceres
- Servicio de Cirugía Pediátrica, Hospital Sant Joan de Déu, Esplugues de Llobregat, Barcelona, España.
| | - M Castañon
- Servicio de Cirugía Pediátrica, Hospital Sant Joan de Déu, Esplugues de Llobregat, Barcelona, España; Sección de Cirugía Neonatal, Hospital Sant Joan de Déu, Esplugues de Llobregat, Barcelona, España
| | - J Lerena
- Servicio de Cirugía Pediátrica, Hospital Sant Joan de Déu, Esplugues de Llobregat, Barcelona, España
| | - V Cusi
- Servicio de Anatomía Patológica, Hospital Sant Joan de Déu, Esplugues de Llobregat, Barcelona, España
| | - J Badosa
- Servicio de Diagnóstico por la Imagen, Hospital Sant Joan de Déu, Esplugues de Llobregat, Barcelona, España
| | - L Morales
- Cátedra de Pediatría, Universidad de Barcelona, Hospital Sant Joan de Déu, Universidad de Barcelona, Esplugues de Llobregat, Barcelona, España
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