. Author manuscript; available in PMC: 2010 Apr 27.

Published in final edited form as: Cell Preserv Technol. 2008 Sep 1;6(3):223–230. doi: 10.1089/cpt.2008.0012

Table 2.

Influence of freeze-thaw cycles on mean concentrations for different plasma components.

Component	mean conc “fresh”	mean conc 1 cycle	mean change 0 to 1 cycle	mean change after 10 cycles, %	mean change after 20 cycles, %	mean change after 30 cycles, %	mean change after 50 cycles, %
Sodium, mmol/l	134	137	2^a	0	−1	0	−2^a
Cholesterol, mmol/l	4.5	4.7	4^a	0	−6^a	−6^a	−15^a
Triglycerides, mmol/l	1.21	1.25	3	−5	−17^a	−19^a	−35^a
Free fatty acids, umol/l	372	404	9	11^a	31^a	32^a	45^a
Vitamin E, umol/l	24	26	8^a	−8	0	−12	−15^a
Aspartate aminotransferase, U/L	25	24	−4	0	21	21^a	25^a

p<0,05

All comparisons are done to one freeze-thaw cycle.