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In the lab, high concentrations of this supplement have been associated with decreases in sperm motility

Upon detection of DNA strand breaks, PARP1 consumes NAD+ to synthesise poly-ADP-ribose (PAR) chains on target proteins, recruiting the DNA repair machinery and modifying chromatin structure to facilitate access to the damage site

Oral administration faces hepatic first-pass metabolism, reducing bioavailability to approximately 4050% of subcutaneous routes, but offers convenience for longer-term studies where daily injections create compliance challenges

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