Gadolinium, a mechano‐sensitive channel blocker, inhibits osmosis‐initiated motility of sea‐ and freshwater fish sperm, but does not affect human or ascidian sperm motility

Abstract excerpt

Exposure to hypo-osmotic or hyperosmotic environment triggers the initiation of fish sperm motility. In this article, we report that calcium and potassium channel blockers do not influence motility of puffer fish sperm but calmodulin antagonists reversibly decrease it, suggesting that calmodulin-Ca(2+) interactions are prerequisite for the initiation of sperm motility in this species. Gadolinium (a stretch...

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