Background and Objective: Prostate cancer is a prevalent disease around the world. The prostatic specific Antigen (PSA) test has recently proved itself as a useful method for the diagnosis and examination of patients with prostatic cancer. The objective of this study was to compare the stability of free PSA and total PSA in different storage settings. Materials and Method...

conclusions using tzpsad as an adjunct to psa may improve the specificity of psa in the diagnosis of pca and decrease the number of unnecessary prostatic biopsies in iranian men with serum psa level < 20 ng/ml. results among 1120 men who were eligible for enrolment, prostate cancer was detected in 265 patients. mean serum psa levels were 9.7 ± 4.3 ng/ml and 8.5 ± 3.7 ng/ml in patients with and ...

background: it is relevant to highlight that there is not a precise and perfect report on either 95 percentile value (upper limit of normal range) or on appropriate reference intervals for serum psa in iranian population. objective: to determine age-specific reference ranges for serum prostate-specific antigen (psa) concentration and psa density (psad) and prostate volumes in a population of he...

Background: stereotactic body radiotherapy (SBRT) has emerged as an effective treatment for localized prostate cancer. However, prostate-specific antigen (PSA) kinetics after SBRT has not been well characterized. The objective of the current study is to analyze the rate of PSA decline and PSA nadir following hypofractonated SBRT in localized prostate cancer. Materials and Methods: From 2008...

background: we aimed to value the usefulness of free to total prostate-specific antigen and prostate-specific antigen (psa) density for prostate cancer in the patients with psa levels of 4.0 ng/ml or less. methods: a total of 343 subjects with psa levels of 4.0 ng/ml or less were biopsied. all patients were divided into four groups according to the psa levels: 0 to 1.0 ng/ml, 1.1 to 2.0 ng/ml, ...

psa is a 33-kda serine protease that is produced predominantly by prostate epithelium. however, it has been shown that about 30-40% of female breast tumors produce psa and its production is associated with the presence of estrogen and progesterone receptors. we have now developed a new tissue culture system to study psa production in breast cancer and its association with prognostic factors suc...

background and objective: prostate cancer is a prevalent disease around the world. the prostatic specific antigen (psa) test has recently proved itself as a useful method for the diagnosis and examination of patients with prostatic cancer. the objective of this study was to compare the stability of free psa and total psa in different storage settings. materials and methods: samples were obtaine...