Document Detail


Plasma and myocardial visfatin expression changes are associated with therapeutic hypothermia protection during murine hemorrhagic shock/resuscitation.
MedLine Citation:
PMID:  20347206     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
AIM: Cytokine production during hemorrhagic shock (HS) could affect cardiac function during the hours after resuscitation. Visfatin is a recently described protein that functions both as a proinflammatory plasma cytokine and an intracellular enzyme within the nicotinamide adenine dinucleotide (NAD(+)) salvage pathway. We developed a mouse model of HS to study the effect of therapeutic hypothermia (TH) on hemodynamic outcomes and associated plasma and tissue visfatin content.
METHODS: Mice were bled and maintained at a mean arterial pressure (MAP) of 35 mmHg. After 30 min, animals (n=52) were randomized to normothermia (NT, 37+/-0.5 degrees C) or TH (33+/-0.5 degrees C) followed by rewarming at 60 min following resuscitation. After 90 min of HS (S90), mice were resuscitated and monitored for 180 min (R180). Visfatin, interleukin 6 (IL-6), keratinocyte-derived chemokine (KC), tumor necrosis factor-alpha (TNF-alpha), and myoglobin were measured by ELISA.
RESULTS: Compared to NT, TH animals exhibited improved R180 survival (23/26 [88.5%] vs. 13/26 [50%]; p=0.001). Plasma visfatin, IL-6, KC, and TNF-alpha increased by S90 in both groups (p<0.05). TH attenuated S90 plasma visfatin and, after rewarming, decreased R180 plasma IL-6, KC, and myoglobin (p<0.05) relative to NT. Heart and gut KC increased at S90 while IL-6 increases were delayed until R180 (p<0.05). NT produced sustained elevations of myocardial KC but decreased visfatin by R180, effects abrogated by TH (p<0.05).
CONCLUSIONS: In a mouse model of HS, TH improves hemodynamics and alters plasma and tissue proinflammatory cytokines including the novel cytokine visfatin. TH modulation of cytokines may attenuate cardiac dysfunction following HS.
Authors:
David G Beiser; Huashan Wang; Jing Li; Xu Wang; Violeta Yordanova; Anshuman Das; Tamara Mirzapoiazova; Joe G N Garcia; Susan A Stern; Terry L Vanden Hoek
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2010-03-26
Journal Detail:
Title:  Resuscitation     Volume:  81     ISSN:  1873-1570     ISO Abbreviation:  Resuscitation     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-05-17     Completed Date:  2010-09-07     Revised Date:  2011-07-28    
Medline Journal Info:
Nlm Unique ID:  0332173     Medline TA:  Resuscitation     Country:  Ireland    
Other Details:
Languages:  eng     Pagination:  742-8     Citation Subset:  IM    
Copyright Information:
Copyright 2010 Elsevier Ireland Ltd. All rights reserved.
Affiliation:
Section of Emergency Medicine, University of Chicago, Chicago, IL 60637, USA. dbeiser@uchicago.edu
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MeSH Terms
Descriptor/Qualifier:
Animals
Cardiopulmonary Resuscitation*
Chemokines / blood
Enzyme-Linked Immunosorbent Assay
Female
Hemodynamics
Hypothermia, Induced*
Ileum / metabolism
Interleukin-6 / blood
Mice
Mice, Inbred C57BL
Myocardium / metabolism*
Myoglobin / blood
Nicotinamide Phosphoribosyltransferase / blood,  metabolism*
Shock, Hemorrhagic / physiopathology,  therapy*
Survival Rate
Time Factors
Tumor Necrosis Factor-alpha / blood
Grant Support
ID/Acronym/Agency:
K08 HL091184-01A1/HL/NHLBI NIH HHS; K08 HL091184-02/HL/NHLBI NIH HHS; K08 HL091184-03/HL/NHLBI NIH HHS; K08HL091184/HL/NHLBI NIH HHS
Chemical
Reg. No./Substance:
0/Chemokines; 0/Interleukin-6; 0/Myoglobin; 0/Tumor Necrosis Factor-alpha; 147037-79-4/keratinocyte-derived chemokines; EC 2.4.2.12/Nicotinamide Phosphoribosyltransferase
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