Abstract:
:Human platelets were frozen in 0.5 M glycerol, 0.5 M glycerol + 3% Dextran T40, or 0.5 M glycerol + 5% mannitol. The recovery of active transport of 5-hydroxytryptamine (5-HT) and the hypotonic stress response after freezing were dependent on the rate of cooling: the optimum range of rates was between 12 and 23 degrees C/min. The numerical recovery of cells was independent of cooling rate, but freezing altered the cell-size distribution. The combination of dextran and glycerol was no better than glycerol alone at protecting platelets against freezing damage. Mannitol, however, adversely affected platelet 5-HT uptake, and this was reflected in a low recovery of that activity after freezing platelets in glycerol supplemented with mannitol.
journal_name
Cryobiologyjournal_title
Cryobiologyauthors
Brodthagen UA,Armitage WJ,Parmar Ndoi
10.1016/0011-2240(85)90002-1subject
Has Abstractpub_date
1985-02-01 00:00:00pages
1-9issue
1eissn
0011-2240issn
1090-2392pii
0011-2240(85)90002-1journal_volume
22pub_type
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