Name: a murine closed-chest model of myocardial ischemia and reperfusion
Uploaded: 2012-07-17T12:00:00
Description: Watch this Scientific Journal Video about A Murine Closed-chest Model of Myocardial Ischemia and Reperfusion at JoVE.com

Vi takker Daniel Duerr for hans rådgivning vedr perfusion-fiksering teknik.

1. Induktion af anæstesi <ol><li> Til induktion med isofluran, anbringes musen i en induktion kasse, der er forbundet med damp sættet 3,0 vol% og oxygenstrøm på 0,5 L / min. </li><li> Efter bevidstløshed opnås med taktil stimulering ikke at inducere et respons, og forlem eller bagben pedal tilbagetrækning refleks er fraværende, anbringe musen på et temperaturstyret operationsbord i rygleje. Opretholde anæstesi i en nasal kegle, som er forbundet med damp via induktion boksen. Læne hovedet ved at fastsætte d...

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	<li>Lim, S. Y., Davidson, S. M., Hausenloy, D. J., Yellon, D. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Preconditioning+and+postconditioning:+the+essential+role+of+the+mitochondrial+permeability+transition+pore.">Preconditioning and postconditioning: the essential role of the mitochondrial permeability transition pore.</a> Cardiovasc. Res. 75, 530-535 (2007).</li><li>Eckle, T., Koeppen, M., Eltzschig, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Use+of+a+Hanging+Weight+System+for+Coronary+Artery+Occlusion+in+Mice.">Use of a Hanging Weight System for Coronary Artery Occlusion in Mice.</a> J. Vis. Exp. (50), e2526 (2011).</li><li>Michael, L. H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Myocardial+infarction+and+remodeling+in+mice:+effect+of+reperfusion.">Myocardial infarction and remodeling in mice: effect of reperfusion.</a> Am. J. Physiol. 277, H660-H668 (1999).</li><li>Nossuli, T. O. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+chronic+mouse+model+of+myocardial+ischemia-reperfusion:+essential+in+cytokine+studies+52.">A chronic mouse model of myocardial ischemia-reperfusion: essential in cytokine studies 52.</a> Am. J. Physiol. Heart Circ. Physiol. 278, H1049-H1055 (2000).</li><li>Irwin, M. W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Tissue+expression+and+immunolocalization+of+tumor+necrosis+factor-alpha+in+postinfarction+dysfunctional+myocardium+846.">Tissue expression and immunolocalization of tumor necrosis factor-alpha in postinfarction dysfunctional myocardium 846.</a> Circulation. 99, 1492-1498 (1999).</li><li>Michael, L. H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Creatine+kinase+and+phosphorylase+in+cardiac+lymph:+coronary+occlusion+and+reperfusion.">Creatine kinase and phosphorylase in cardiac lymph: coronary occlusion and reperfusion.</a> Am. J. Physiol. 248, 350-359 (1985).</li><li>Tonkovic-Capin, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Delayed+cardioprotection+by+isoflurane:+role+of+K(ATP)+channels+765.">Delayed cardioprotection by isoflurane: role of K(ATP) channels 765.</a> Am. J. Physiol. Heart Circ. Physiol. 283, H61-H68 (2002).</li><li>Tsutsumi, Y. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Role+of+caveolin-3+and+glucose+transporter-4+in+isoflurane-induced+delayed+cardiac+protection.">Role of caveolin-3 and glucose transporter-4 in isoflurane-induced delayed cardiac protection.</a> Anesthesiology. 112, 1136-1145 (2010).</li><li>Benedict, P. E., Benedict, M. B., Su, T. P., Bolling, S. F. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Opiate+drugs+and+delta-receptor-mediated+myocardial+protection.">Opiate drugs and delta-receptor-mediated myocardial protection.</a> Circulation. 100, II357-II360 (1999).</li><li>Ren, X., Wang, Y., Jones, W. K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=TNF-alpha+is+required+for+late+ischemic+preconditioning+but+not+for+remote+preconditioning+of+trauma.">TNF-alpha is required for late ischemic preconditioning but not for remote preconditioning of trauma.</a> J. Surg. Res. 121, 120-129 (2004).</li><li>Andrassy, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=High-mobility+group+box-1+in+ischemia-reperfusion+injury+of+the+heart.">High-mobility group box-1 in ischemia-reperfusion injury of the heart.</a> Circulation. 117, 3216-3226 (2008).</li><li>Kim, S. C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Extracellular+heat+shock+protein+60,+cardiac+myocytes,+and+apoptosis.">Extracellular heat shock protein 60, cardiac myocytes, and apoptosis.</a> Circ. Res. 105, 1186-1195 (2009).</li><li>Lin, L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=HSP60+in+heart+failure:+abnormal+distribution+and+role+in+cardiac+myocyte+apoptosis.">HSP60 in heart failure: abnormal distribution and role in cardiac myocyte apoptosis.</a> Am. J. Physiol. Heart Circ. Physiol. 293, 2238-2247 (2007).</li></ol>

Vi har ændret en murin lukket kiste model ved at gå ind i hjertet gennem en venstre lateral interkostale torakotomi og lede de LAD suturer til brystet i venstre midclavicular linje. Forlader knoklede brystkassen intakt vil minimere traumer, har brug for smertestillende medicin, kirurgiske sårinfektioner og dermed lette inddrivelsen. Ved at bevare den venstre indre pattedyret arterie der ikke er behov for elektrokauterisation. Vi forlader suturen loop i det subkutane væv til senere nem adgang og bruge en hængende v?...

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a murine closed-chest model of myocardial ischemia and reperfusion

Kirurgisk trauma af thorakotomi med åbne bryst modeller af koronar ligatur inducerer en immunrespons, som modificerer forskellige mekanismer involveret i iskæmi og reperfusion. Immunrespons omfatter cytokinekspression og frigivelse eller sekretion af endogene ligander af medfødte immunforsvar receptorer. Aktivering af medfødte immunitet kan potentielt modulere infarktstørrelse. Vi har ændret en eksisterende murine lukket kiste model ved hjælp af hængende vægte, som kunne være nyttige for at studere myokardie præ-og postconditioning og den rolle medfødte immunitet i myokardie iskæmi og reperfusion. Denne model tillader dyrene at komme sig kirurgisk traume, før indtræden af ​​myocardial iskæmi. Flygtige anæstetika er intenst undersøgt, og deres forkonditionering virkning for iskæmisk hjertesygdom, er velkendt. Men denne beskyttende virkning udelukker dens anvendelse i åbne bryst modeller af kranspulsåreombinding. Således kunne en anden fordel være anvendelsen af ​​the godt kontrollerbare flygtige anæstetika til instrumentering i en kronisk lukket brystet model, idet deres klargøring, effekten varer op til 72 timer. Kroniske hjertesygdomme med intermitterende iskæmi og flere ramte modeller er andre mulige anvendelser af denne model. Den kroniske lukkede bryst model undergår intuberet og ventileret mus en lateral stump torakotomi via 4. intercostale rum. Efter identifikation af den venstre forreste nedadgående en ligatur føres under fartøjet, og begge sutur ender er ført gennem en okkluder. Derefter er begge sutur ender føres gennem brystvæggen, knyttet til dannelse af en løkke, og efterladt i det subkutane væv. Efter brystet lukning og genopretning i 5 dage, er mus bedøves igen, brystet hud og genåbnet hængende vægte hooked op til loop under EKG-kontrol. Ved slutningen af ​​iskæmi / reperfusion protokollen, kan hjerter farves med TTC for infarktStørrelsen vurdering eller underkastes perfusion fiksering for at tillade morfometriske undersøgelser foruden histologi og immunhistokemi.

Watch this Scientific Journal Video about A Murine Closed-chest Model of Myocardial Ischemia and Reperfusion at JoVE.com

A Murine Closed-chest Model of Myocardial Ischemia and Reperfusion

Kirurgisk trauma inducerer en inflammatorisk respons. Cytokiner og endogene ligander vides at modulere myocardial infarktstørrelse efter iskæmi og reperfusion. Vi præsenterer en modificeret lukket bryst model af murint iskæmi og reperfusion under anvendelse hængende vægt på at minimere virkningerne af torakotomi.

Et murint lukket bryst Model for myocardial iskæmi og reperfusion

Surgical trauma by thoracotomy in open-chest models of coronary ligation induces an immune response which modifies different mechanisms involved in ...

Research

JoVE Journal

Medicine

Normothermic Cardiac Arrest and Cardiopulmonary Resuscitation: A Mouse Model of Ischemia-Reperfusion Injury

Acute Kidney Injury (AKI) is a common, highly lethal, complication of critical illness which has a high mortality1-4 and which is most 
frequently caused ...

Reproducable Paraplegia by Thoracic Aortic Occlusion in a Murine Model of Spinal Cord Ischemia-reperfusion

Reproducerbar Paraplegi af thorax aortaokklusion i en musemodel for Rygmarvsskader iskæmireperfusion

Background
Lower extremity paralysis continues to complicate aortic interventions. The lack of understanding of the underlying pathology has hindered ...

A Murine Model of Myocardial Ischemia-reperfusion Injury through Ligation of the Left Anterior Descending Artery

En murin model af myokardieiskæmi-reperfusionsskade gennem æggelederne for Venstre Anterior Faldende Artery

Acute or chronic myocardial infarction (MI) are cardiovascular events resulting in high morbidity and mortality. Establishing the pathological mechanisms ...

A Rat Model of Ventricular Fibrillation and Resuscitation by Conventional Closed-chest Technique

En rotte model af ventrikelflimren og genoplivning ved konventionel Closed-bryst Teknik

A rat model of electrically-induced ventricular fibrillation followed by cardiac resuscitation using a closed chest technique that incorporates the basic ...

Murine Model of Intestinal Ischemia-reperfusion Injury

Murin model af intestinal iskæmi-reperfusionsskade

Intestinal ischemia is a life-threatening condition associated with a broad range of clinical conditions including atherosclerosis, thrombosis, ...

Confirmation of Myocardial Ischemia and Reperfusion Injury in Mice Using Surface Pad Electrocardiography

Bekræftelse af myokardieiskæmi og reperfusionsskade i mus Brug Surface Pad elektrokardiografi

Many animal models have been established for the study of myocardial remodeling and heart failure due to its status as the number one cause of mortality ...

Improvement of a Closed Chest Porcine Myocardial Infarction Model by Standardization of Tissue and Blood Sampling Procedures

Forbedring af en lukket brystet svin myokardieinfarkt Model af standardisering af væv og blod prøveudtagningsprocedurer

Myocardial ischemia reperfusion (I/R) injury contributes to almost half of the necrotic area after myocardial infarction. To date there is no approved ...

A Closed-chest Model to Induce Transverse Aortic Constriction in Mice

En lukket-bryst Model til at fremkalde tværgående aorta konstriktion i mus

Research on cardiac hypertrophy and heart failure is frequently based on pressure overload mouse models induced by TAC. The standard procedure is to ...

Evaluation of Coronary Flow Reserve After Myocardial Ischemia Reperfusion in Rats

Evaluering af koronar flow reserve efter myokardieiskæmi reperfusion hos rotter

Coronary artery disease is the leading cause of death worldwide. After an acute myocardial infarction, early and successful myocardial intervention via ...

Delayed Intramyocardial Delivery of Stem Cells after Ischemia Reperfusion Injury in a Murine Model

Forsinket Intramyokardie levering af stamceller efter Iskæmi Reperfusion Skade i en Murine Model

There is significant interest in the use of stem cells (SCs) for the recovery of cardiac function in individuals with myocardial injuries. Most commonly, ...