Removal or damage to one of a pair of glandular organs frequently results in compensatory hypertrophy, compensatory hyperplasia, or both, of the cells of the remaining or intact gland. In the rat, after unilateral orchidectomy, hypertrophy of the germ cells of the remaining testis has been reported, followed by an increase in testis volume (Grant, 1957). Unilateral artificial cryptorchidism is accompanied by hypertrophy, but not by hyperplasia, of the germ cells in the remaining scrotal testis. Some authors have noticed a significant increase in the weight of the scrotal testis (Zimel, Rivenzon & Macrineanu, 1962) while others have denied this (Clegg, 1965). Nothing is known about the sperm output after unilateral orchidectomy or cryptorchidism. In the following experiments, the output of spermatozoa after unilateral orchidectomy and unilateral cryptorchidism was determined by
Reproduction is committed to supporting researchers in demonstrating the impact of their articles published in the journal.
The two types of article metrics we measure are (i) more traditional full-text views and pdf downloads, and (ii) Altmetric data, which shows the wider impact of articles in a range of non-traditional sources, such as social media.
More information is on the Reasons to publish page.
Sept 2018 onwards | Past Year | Past 30 Days | |
---|---|---|---|
Full Text Views | 192 | 108 | 8 |
PDF Downloads | 69 | 17 | 1 |