Engineering topics
Vasquez, M.
Publications and source records attributed to Vasquez, M..
Effects of spaceflight on the spermatogonial population of rat seminiferous epithelium
Testes from rats flown on Cosmos 1887 were compared with vivarium control and synchronous control samples. The mean weights of flight testes, normalized for weight per 100 g, were 6.4 percent less when compared with the vivarium controls. Counts of spermatogonia from tissue sections (seminiferous tubules in maturation stage 6) from five animals in each group revealed 4 percent fewer spermatogonia in flight testes compared with synchronous controls and 11 percent fewer spermatogonia in flight samples compared with vivarium controls.
Sapp, Walter J.↗