La rigenerazione del midollo spinale della coda di larve di Xenopus laevis operate negli stadi tardivi
The experiments in this work were designed to study the regenerative capacity of caudal spinal cord in larval Xenopus laevis at stages near to metamorphosis. 70% of the tail was removed in larval Xenopus laevis at stage 56-57 (acc.to Nieuwkoop and Faber, 1956). The experimental animals were reared in 0.01% solution of PTU (4(6)- Propyl-2-thiouracil) in order to inhibit metamorphosis, and sacrificied after 3-5 months. The results obtained demonstrated that: a) the regenerated spinal cord of the tadpoles...