Mecanismos moleculares en el daño por isquemia-reperfusión hepática y en el preacondicionamiento isquémico

Ischemia-reperfusion (IR) liver injury is associated with temporary clamping of hepatoduodenal ligament during liver surgery, hypoperfusion shock and graft failure after liver transplantation. Mechanisms of IR liver injury include: i) loss of calcium homeostasis, ii) reactive oxygen and nitrogen spe...

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Autores principales: Romanque U,Pamela, Uribe M,Mario, Videla,Luis A
Lenguaje:Spanish / Castilian
Publicado: Sociedad Médica de Santiago 2005
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872005000400012
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spelling oai:scielo:S0034-988720050004000122005-06-13Mecanismos moleculares en el daño por isquemia-reperfusión hepática y en el preacondicionamiento isquémicoRomanque U,PamelaUribe M,MarioVidela,Luis A Ischemia-reperfusion injury Liver transplantation Shock, surgical Ischemia-reperfusion (IR) liver injury is associated with temporary clamping of hepatoduodenal ligament during liver surgery, hypoperfusion shock and graft failure after liver transplantation. Mechanisms of IR liver injury include: i) loss of calcium homeostasis, ii) reactive oxygen and nitrogen species generation, iii) changes in microcirculation, iv) Kupffer cell activation, and (v) complement activation. Pre-exposure of the liver to transient ischemia increases the tolerance to IR injury, a phenomenon known as hepatic ischemic preconditioning (IP). IP involves: i) recovery of the energy supply and calcium, sodium and pH homeostasis, ii) enhancement in the antioxidant potential, and iii) expression of multiple stress-response proteins, including acute phase proteins, heat shock proteins, and heme oxygenase. These observations and preliminary studies in humans give a rationale for the assessment of IP in minimizing or preventing IR injury during surgery and non surgical conditions of tissue hypoperfusioninfo:eu-repo/semantics/openAccessSociedad Médica de SantiagoRevista médica de Chile v.133 n.4 20052005-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872005000400012es10.4067/S0034-98872005000400012
institution Scielo Chile
collection Scielo Chile
language Spanish / Castilian
topic Ischemia-reperfusion injury
Liver transplantation
Shock, surgical
spellingShingle Ischemia-reperfusion injury
Liver transplantation
Shock, surgical
Romanque U,Pamela
Uribe M,Mario
Videla,Luis A
Mecanismos moleculares en el daño por isquemia-reperfusión hepática y en el preacondicionamiento isquémico
description Ischemia-reperfusion (IR) liver injury is associated with temporary clamping of hepatoduodenal ligament during liver surgery, hypoperfusion shock and graft failure after liver transplantation. Mechanisms of IR liver injury include: i) loss of calcium homeostasis, ii) reactive oxygen and nitrogen species generation, iii) changes in microcirculation, iv) Kupffer cell activation, and (v) complement activation. Pre-exposure of the liver to transient ischemia increases the tolerance to IR injury, a phenomenon known as hepatic ischemic preconditioning (IP). IP involves: i) recovery of the energy supply and calcium, sodium and pH homeostasis, ii) enhancement in the antioxidant potential, and iii) expression of multiple stress-response proteins, including acute phase proteins, heat shock proteins, and heme oxygenase. These observations and preliminary studies in humans give a rationale for the assessment of IP in minimizing or preventing IR injury during surgery and non surgical conditions of tissue hypoperfusion
author Romanque U,Pamela
Uribe M,Mario
Videla,Luis A
author_facet Romanque U,Pamela
Uribe M,Mario
Videla,Luis A
author_sort Romanque U,Pamela
title Mecanismos moleculares en el daño por isquemia-reperfusión hepática y en el preacondicionamiento isquémico
title_short Mecanismos moleculares en el daño por isquemia-reperfusión hepática y en el preacondicionamiento isquémico
title_full Mecanismos moleculares en el daño por isquemia-reperfusión hepática y en el preacondicionamiento isquémico
title_fullStr Mecanismos moleculares en el daño por isquemia-reperfusión hepática y en el preacondicionamiento isquémico
title_full_unstemmed Mecanismos moleculares en el daño por isquemia-reperfusión hepática y en el preacondicionamiento isquémico
title_sort mecanismos moleculares en el daño por isquemia-reperfusión hepática y en el preacondicionamiento isquémico
publisher Sociedad Médica de Santiago
publishDate 2005
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872005000400012
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AT uribemmario mecanismosmoleculareseneldanoporisquemiareperfusionhepaticayenelpreacondicionamientoisquemico
AT videlaluisa mecanismosmoleculareseneldanoporisquemiareperfusionhepaticayenelpreacondicionamientoisquemico
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