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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2009-8-31
pubmed:abstractText
The nuclear lamins A/C play a critical role in maintaining the structure of the nuclear lamina and the organization of various proteins, such as emerin. These protein levels may play roles in the pathogenesis and clinical evolution of both ischemic (ICM) and dilated (DCM) cardiomyopathy. We evaluated the nuclear morphology of cardiomyocytes and determine lamins A/C and emerin levels among DCM and ICM heart failure patients compared with control human hearts. We determined protein levels by Western blots using mouse monoclonal antibodies in 23 explanted human hearts. Lamin A was increased in failing hearts but significantly different only among the DCM compared with the control group: mean, 236 +/- 51 vs 100 +/- 34; (P < .05). However, lamin C in the DCM group was near control values and significantly decreased in the ICM cohort compared to controls 75 +/- 7 versus 100 +/- 3 (P < .05). No alterations in emerin levels were observed in ICM or DCM, compared with controls. In conclusion, hearts with ICM or DCM showed different alterations in the nuclear morphology of cardiomyocytes; ICM patients had decreased lamin C, whereas DCM patients had increased lamin A. These changes affecting nuclear structure and function may have prognostic implications, for cardiomyopathy etiology.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1873-2623
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
41
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2227-30
pubmed:meshHeading
pubmed:articleTitle
The role of the nuclear lamins in the pathogenesis of heart failure in patients undergoing cardiac transplantation.
pubmed:affiliation
Unidad de Cardiocirculación, Centro de Investigación, Hospital Universitario La Fe, Valencia, Spain.
pubmed:publicationType
Journal Article