Reports

Exponential decrease during aging and random lifetime of mouse spermatogonial stem cells

Science  15 Dec 1978:
Vol. 202, Issue 4373, pp. 1214-1215
DOI: 10.1126/science.725597

Abstract

Variation in the number of spermatogonial stem cells during the lifespan of the mouse was examined by assaying the number of clonogenic cells, that is, spermatogenic stem cells, surviving known doses of radiation. The results indicated that the stem cell number decreased exponentially with age.

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