What is prostate PSA index

summary

Now many people are very concerned about their health, so what is prostate PSA index? As a patient who has experienced many diseases, I have learned a lot of experience from doctors. Now I would like to share with you my experience on prostate PSA index.

What is prostate PSA index

PSA is a single chain polypeptide with 237 amino acids. It belongs to the serine protease family with tissue specificity and chymotrypsin like effect. It can decompose the main gelatinous proteins in semen and dilute semen. PSA can be synthesized in both normal and cancer like epithelial cells.

At the beginning, a kind of inactive proenzyme (proPSA) was secreted into the prostatic duct. The proenzyme cleaved seven amino acids at the N-terminal to form active prostate-specific antigen. Most of the prostate-specific antigen (PSA) entering the circulation rapidly binds to proteinase inhibitors, mainly α - 1 antichymosin (ACT) and α - 2 macroglobulin (mg)

PSA is tissue-specific and only exists in the cytoplasm of human prostatic acinar and ductal epithelial cells, but not in other cells. Prostatitis, benign prostatic hyperplasia and prostate cancer can increase the total PSA level (free PSA plus compound PSA).

matters needing attention

If you know what prostate PSA index is, you don't have to worry too much. You need to check it frequently. You should have a regular daily life, maintain a healthy body function and a good attitude, and have a healthy life.