Document Detail


Exercise in patients with intermittent claudication elicits signs of inflammation and angiogenesis.
MedLine Citation:
PMID:  19775917     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVES: Previous studies have demonstrated elevation of systemic levels of inflammatory cytokines after treadmill exercise in patients with intermittent claudication (IC), but it is unknown if growth factor expression also is stimulated. The aim of this study was to assess whether physical exercise-induced ischemia elicits an inflammatory response and increase in local and systemic vascular growth factor expression in patients with IC. METHODS: Nineteen patients with IC had plasma concentrations of inflammatory markers (IL-6, TNF-alpha, hs-CRP) and vascular growth factors (VEGF and FGF-2) measured before and at four time points after a treadmill exercise test. In 10 patients a gastrocnemius muscle biopsy was obtained to measure VEGF and FGF-2 mRNA. Plasma concentrations of vWF were also measured. Five patients who underwent the treadmill test without experiencing calf pain were enrolled as controls. RESULTS: Plasma concentrations of IL-6 increased after exercise (p=0.004), while TNF-alpha and hs-CRP were unchanged (p=0.191 and p=0.709, respectively). Plasma concentrations of VEGF were similar (p=0.151) at the different time points after exercise but FGF-2 levels decreased (p=0.013). In biopsies after treadmill testing VEGF-A mRNA was increased (p=0.043), but no change was observed for FGF-2 (p=0.456). CONCLUSION: Exercise in IC triggers an inflammatory response as exemplified by elevated concentrations of IL-6. After exercise-induced pain, VEGF mRNA in calf muscle is increased. Therefore, it is plausible that angiogenesis is stimulated by exercise in IC.
Authors:
U Palmer-Kazen; P Religa; E Wahlberg
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-09-23
Journal Detail:
Title:  European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery     Volume:  38     ISSN:  1532-2165     ISO Abbreviation:  Eur J Vasc Endovasc Surg     Publication Date:  2009 Dec 
Date Detail:
Created Date:  2009-11-27     Completed Date:  2009-12-17     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9512728     Medline TA:  Eur J Vasc Endovasc Surg     Country:  England    
Other Details:
Languages:  eng     Pagination:  689-96     Citation Subset:  IM    
Affiliation:
Department of Molecular Medicine and Surgery, Vascular Biology Laboratory, Karolinska Institute, Stockholm, Sweden. ulrika.palmer-kazen@sodersjukhuset.se
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MeSH Terms
Descriptor/Qualifier:
Aged
Aged, 80 and over
Biological Markers / blood
Biopsy
C-Reactive Protein / metabolism
Case-Control Studies
Exercise*
Exercise Test
Female
Fibroblast Growth Factor 2 / blood,  genetics
Humans
Inflammation / blood,  etiology*,  physiopathology
Inflammation Mediators / blood
Interleukin-6 / blood
Intermittent Claudication / blood,  complications,  physiopathology*
Male
Middle Aged
Muscle, Skeletal / metabolism,  physiopathology
Neovascularization, Physiologic*
RNA, Messenger / metabolism
Tumor Necrosis Factor-alpha / blood
Vascular Endothelial Growth Factor A / blood,  genetics
Chemical
Reg. No./Substance:
0/Biological Markers; 0/IL6 protein, human; 0/Inflammation Mediators; 0/Interleukin-6; 0/RNA, Messenger; 0/Tumor Necrosis Factor-alpha; 0/VEGFA protein, human; 0/Vascular Endothelial Growth Factor A; 103107-01-3/Fibroblast Growth Factor 2; 9007-41-4/C-Reactive Protein

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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