Abstract:
:Mitochondria isolated from rats chronically fed ethanol were more sensitive to induction of the mitochondrial permeability transition (MPT) by a variety of agents than mitochondria isolated from isocalorically matched controls. The agents utilized have been implicated in both necrotic (Ca(2+)) and apoptotic (ceramide, GD3 ganglioside, and Bax) forms of cell killing and help promote pore opening by differing mechanisms. In each case it was found that concentrations of the inducing agents which promoted little or no pore opening in mitochondria isolated from pair matched controls produced massive MTP opening in mitochondria from chronically ethanol fed rats as evidenced by swelling. In all cases induction of the MPT was prevented by the presence of cyclosporin A.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Pastorino JG,Marcineviciute A,Cahill A,Hoek JBdoi
10.1006/bbrc.1999.1696subject
Has Abstractpub_date
1999-11-19 00:00:00pages
405-9issue
2eissn
0006-291Xissn
1090-2104pii
S0006-291X(99)91696-0journal_volume
265pub_type
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journal_title:Biochemical and biophysical research communications
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