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Circulating growth differentiation factor-15 correlates with myocardial fibrosis in patients with non-ischaemic dilated cardiomyopathy and decreases rapidly after left ventricular assist device support.
MedLine Citation:
PMID:  22843564     Owner:  NLM     Status:  Publisher    
AIMS: Growth differentiation factor-15 (GDF-15) is a stress-responsive cytokine and is emerging as a biomarker of cardiac remodelling. Left ventricular assist devices (LVADs) provide unloading of the left ventricle, resulting in partial reverse remodelling. Our aim was to study GDF-15 in patients with a non-ischaemic dilated cardiomyopathy (DCM) during LVAD support. METHODS AND RESULTS: We analysed circulating GDF-15 in 30 patients before and 1, 3, and 6 months after LVAD implantation and before heart transplantation or explantation. In addition, mRNA and protein expression of GDF-15 were evaluated in myocardial tissue obtained prior to and after LVAD support. Circulating GDF-15 was significantly higher before LVAD implantation as compared with healthy controls (P < 0.001). After 1 month of mechanical support, GDF-15 levels were significantly decreased compared with pre-implantation levels (P < 0.001) and remained stable thereafter. Circulating GDF-15 was significantly correlated with kidney function and the severity of myocardial fibrosis. Interestingly, GDF-15 mRNA and protein expression in the myocardium were hardly detectable. CONCLUSIONS: High circulating levels of GDF-15 in patients with end-stage non-ischaemic DCM correlate with myocardial fibrosis and kidney function and decline strongly after 1 month of mechanical unloading, remaining stable thereafter. However, cardiac mRNA and protein expression of GDF-15 are very low, suggesting that the heart is not an important source of GDF-15 production in these patients.
Sjoukje I Lok; Bjorn Winkens; Roel Goldschmeding; Ankie J P van Geffen; Fay M A Nous; Joyce van Kuik; Petra van der Weide; Corinne Klöpping; J Hans Kirkels; Jaap R Lahpor; Pieter A Doevendans; Nicolaas de Jonge; Roel A de Weger
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-26
Journal Detail:
Title:  European journal of heart failure     Volume:  -     ISSN:  1879-0844     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100887595     Medline TA:  Eur J Heart Fail     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Cardiology, University Medical Centre Utrecht, Postbus 85500, 3508 GA Utrecht, The Netherlands.
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