According to theoretical considerations and to results of own experimental investigations in heart muscle fragments of adult rats the authors are of opinion that more attention should be attributed to the cryoprotective medium as a whole, i.e. not only to the proper cryoprotectant, but to the other components of the cryoprotective medium as well. The suppose that the still unsatisfactory results of cell preservation, including blood and bone marrow cells, can be essentially improved by optimizing the composition of the basal medium.
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