Prostate specific antigen and storage conditions

الملخص EN

This study was designed to evaluate the effect of storage conditions and time lasting on the stabitity of prostate specific antigen in sera of healthy males, benign prostatic hyperplasia, and prostate cancer.

The results indicate a high stability of prostate specific antigen of the frozen samples at- 20oC.

the serum samples at 4oC or unfrozen samples show a less stability at acomparable time.

In general the unfrozen samples at 4oc were relatively stable for about 3 days.

The decrement in prostate specific antigen was attributed to the changes in immunoreactivity or to the alteration in binding affinity toward the used antibody.