We have examined the n.m.r, relaxation times T1 and T2 of water protons for liver (mouse, human) and brain (mouse) at different temperatures and subjected to various conditions of conservation and degeneration. After tissue degeneration, T1 and T2 behave differently and their variations are characteristic of each tissue type. The results show that the initial values at +4°C are consistent when the experimental protocol formulated in this study is followed.

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