title: Circadian variation of different fractions of serum acid phosphatase.
abstract: The circadian variation of different fractions of serum acid phosphatase was determined in two men with a normal prostate, two men with benign prostatic hyperplasia, and four men with prostatic cancer. Serum samples were obtained every 2 hours from 8:00 a.m. until 6:00 a.m. the following day. An overall sample standard deviation of 1.98 U/liter was calculated for total acid phosphatase, 0.4 U/liter for tartrate-labile acid phosphatase, and 0.13 micrograms/liter for prostatic acid phosphatase as determined by immunoenzyme assay.
mesh_terms: D000135:Acid Phosphatase / Q000097:blood*; D002940:Circadian Rhythm; D006801:Humans; D008297:Male; D011467:Prostate / Q000201:enzymology*; D011470:Prostatic Hyperplasia / Q000097:blood*; D011471:Prostatic Neoplasms / Q000097:blood*; D013223:Statistics as Topic
chemical_list: D000135:Acid Phosphatase