It seems like you might be referring to NADPH and PSA separately rather than together as 4NAD PSA as the combination doesnt typically represent a standard chemical compound or term Lets clarify each
NADPH is a coenzyme involved in cellular metabolism It is derived from niacin Vitamin B3 and functions primarily as an electron donor in various biochemical reactions particularly in the synthesis of fatty acids and as well as in antioxidant defense mechanisms
2 PSA ProstateSpecific Antigen
PSA is a protein produced by the prostate gland It is commonly used as a biomarker in the diagnosis and monitoring of prostate cancer and other prostaterelated conditions
If you meant to ask about either NADPH or PSA specifically please let me know and I can provide more detailed information on either of these topics If 4NAD PSA refers to something else specific in your context please provide more details so I can better understand your question