Oxidative stress parameters in patients with prostate cancer, benign prostatic hyperplasia and asymptomatic inflammatory prostatitis: A prospective controlled study

The imbalance between oxidant and reductant mechanisms creates a nidus for the etiopathogenesis of several diseases. In this study, we aimed to compare the oxidative stress (OS) parameters in patients who were diagnosed with prostate cancer (pCa), benign prostatic hyperplasia (BPH) or asymptomatic inflammatory prostatitis (AIP), according to the histopathologic examination of transrectal ultrasonographic prostate biopsy and transurethral prostate resection specimens.

In this study, we aimed to compare oxidative stress between histologically proven prostate cancer, hyperplasia and prostatitis.

According to histopathologic examinations, 97 patients were divided into 3 study groups: group 1: pCa (n = 30), group 2: BPH (n = 41), and group 3: AIP (n = 26). Finally, 30 patients were enrolled in a control group. MDA levels, CuZn-SOD, Se-GPx, CAT activities, and trace element levels were evaluated.

A statistically significant difference between prostate cancer and other groups were documented in terms of MDA activity. Contrary to AIP, a statistically significant difference has also been encountered between BPH and the control group. Decreased CuZn-SOD enzyme levels were found in PCa and BPH patients without statistical significance. Increased CAT activity was also documented in PCa, BPH and AIP patients. No significant difference in GPX activity was documented between the groups, except BPH and control group. Trace element levels were low in the patients with prostate cancer and BPH when compared with the control group.

Despite the data regarding OS in PCa patients, there is a paucity of data regarding BPH and especially AIP patients. Our study revealed obvious oxidative stress in BPH and PCa patients as opposed to AIP. Assessing the oxidative stress in these patients may assist in the future prevention, diagnosis and also treatment. However, the question whether the presence of OS-related parameters and drugs could be used for the diagnosis or management of prostatic diseases, needs to be addressed in future larger and better studies with a more rational basis.

Advances in clinical and experimental medicine : official organ Wroclaw Medical University. 2017 Oct [Epub]

Engin Kaya, Yasar Ozgok, Murat Zor, Ayse Eken, Selahattin Bedir, Onur Erdem, Turgay Ebiloglu, Giray Ergin

Department of Urology, Gülhane Askeri Tıp Akademisi (GATA), Ankara, Turkey., Urology Department, Medical Faculty, Gülhane Military Medical Academy (GMMA), Ankara, Turkey., Department of Urology, Gülhane Askeri Tıp Akademisi Haydarpasa Research Center, Istanbul, Turkey., Pharmacology Department, Medical Faculty, Gülhane Military Medical Academy (GMMA), Ankara, Turkey., Urology Department, Etimesgut Military Hospital, Turkey., Urology Department, Agrı Military Hospital, Turkey.