Abstract:
:This exploratory study assessed apoptosis in peripheral blood leucocytes (PBL) from β-thalassaemia patients receiving chronic transfusions and chelation therapy (deferasirox or deferoxamine) at baseline, 1, 6, and 12 months. At baseline, thalassaemic PBLs presented 50% greater levels of Bax (BAX), 75% higher caspase-3/7, 48% higher caspase-8 and 88% higher caspase-9 activities and 428% more nucleosomal DNA fragmentation than control subjects. Only neutrophils correlated significantly with apoptotic markers. Previously, we showed that over the treatment year, hepatic iron declined; we now show that the ratio of Bax/Bcl-2 (BCL2), (-27·3%/year), and caspase-9 activity (-13·3%/year) declined in both treatment groups, suggesting that chelation decreases body iron and indicators of PBL apoptosis.
journal_name
Br J Haematoljournal_title
British journal of haematologyauthors
Walter PB,Porter J,Evans P,Kwiatkowski JL,Neufeld EJ,Coates T,Giardina PJ,Grady RW,Vichinsky E,Olivieri N,Trachtenberg F,Alberti D,Fung E,Ames B,Higa A,Harmatz P,Thalassemia Clinical Research Network.doi
10.1111/bjh.12076subject
Has Abstractpub_date
2013-02-01 00:00:00pages
399-403issue
3eissn
0007-1048issn
1365-2141journal_volume
160pub_type
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