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A 30-year-old member asked:

What is the function of prostate-specific antigen in normal males?

1 doctor answer1 doctor weighed in
Dr. Bac Nguyen
Family Medicine 24 years experience
A functional protein: It is a glycoprotein made by the cells of the prostate. Psa liquefies/thins out the semen in the seminal glands and allows sperm to swim freely. It is also believed to be instrumental in dissolving the cervical mucus, allowing the entry of sperm into the uterus and up etc....Beyond that, I have no idea what else it does. It is used as tumor marker for prostate cancer monitoring etc..Good luck.

Similar questions

A 33-year-old member asked:

Can you please explain the function of prostate-specific antigen in normal cells?

1 doctor answer1 doctor weighed in
Dr. Terence Chapman
Urologic Oncology 27 years experience
See answer: Prostate specific antigen (psa) is an enzyme which is secreted by the prostate gland and appears to play a role in the liquefaction of semen. Thus it has more of an "exocrine" function vs and endocrine function which imply a role in the physiologic or cellular processes of the body itself.
A 45-year-old member asked:

What's a normal time to get a prostate specific antigen score?

1 doctor answer2 doctors weighed in
Dr. James Gulley
Hematology and Oncology 27 years experience
PSA: Psa, prostate specific antigen, is a test used for screening for prostate cancer. Psa can be used to detect cancers earlier however there is significant controversy regarding the use of this screening modality. Whether to screen should be discussed with your physician. Typically screening is not started in men until they are 50 years old unless they are high risk, then 40.
Last updated Aug 15, 2017
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