Presence of key cholinergic enzymes in human spermatozoa and seminal fluid†.

Nonetheless, we also found a highly significant positive correlation between soluble AChE levels and levels of both α-glucosidase and fructose in the seminal samples, which not only confirms that AChE is released by some cells in testes/epididymides and from cells of seminal vesicles but also that little AChE, if any, originates from the prostate (see Table 2 ).

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