Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2001-6-6
pubmed:abstractText
Tinuvin 770/bis(2,2,6,6-tetramethyl-4-piperidinyl)sebacate is a worldwide used light stabilizer for plastic materials like polyolefins. Tinuvin 770 is a biologically active component of polypropylene tubes. Glossmann and his study group managed to extract this compound by aqueous or organic solvents from laboratory plastic tubes, and propose that Tinuvin 770 is a potent blocker of L-type Ca(2+)-channel through the phenylalkylamine and benzothiazepine-selective drug binding domains of the alpha(1) subunit of the receptor [Proc. Natl. Acad. Sci. U.S.A. 90 (1993) 9523]. We examined the direct morphological effect of Tinuvin 770 in give 25nmol, 0, 30, 60, 120 minute exposure time in isolated cardiomyocytes from adult rats. Incubation of myocytes with Tinuvin resulted in a progressive decline of rod-shaped and viable cells. It was accompanied by an increase in number of hypercontracted myocytes with microbleb formation compared to control and depletion of ATP level. In summary, our results demonstrate that plasma membrane damage and hypercontraction are manifestations of Tinuvin-induced injury of isolated cardiomyocytes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0379-0738
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
119
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
322-7
pubmed:dateRevised
2009-11-3
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
A light stabilizer Tinuvin 770-induced toxic injury of adult rat cardiac myocytes.
pubmed:affiliation
Department of Transplantation and Surgery, Semmelweis University of Medicine, Baross u. 23-25, 1082, Budapest, Hungary.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't