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Selective spermatozoa movement from storage of the oviduct to fertilization site is suggested to be a result of chemotaxis. In the present study, Natriuretic peptide precursor A (NPPA) induced sperm chemotaxis in capillaries and enhanced intracellular Ca2+ level, both of which could be blocked by the Natriuretic Peptide Receptor 1 (NPR1) inhibitor anantin and the cGMP‐dependent protein kinase (PKG)...
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