[Electronmicroscopic investigations of N. trigeminus of rats during the phase of tumour induction by ethylnitrosourea (author's transl)].


A single subcutaneous application of ENU to newborn rats causes after 2--4 days lethal and sublethal toxic lesions in some of the Schwann cells and their corresponding axons and myelin sheaths. The sublethally damaged Schwann cells show mainly alterations of myelin sheath formation. The ensuing regeneration produces between the 28.--35. day not only normal… (More)


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