Prostatic diseases are a common health problem among males in Western countries, and include chronic prostatic diseases, which have an unclear pathogenesis and few treatment options. In vitro and in vivo studies describe oxidative stress as a major pathway involved in the occurrence of benign prostatic hyperplasia, prostatic cancer and chronic prostatitis. Thus, the oxidative stress cascade is a potential target for the treatment of prostatic diseases. This paper presents a systematic review of the available data concerning the association between oxidative stress and the most common chronic prostatic diseases, and describes the available treatment options that act upon this pathway.

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Introduction: Myeloperoxidase (MPO) is an immune enzyme found in neutrophils and macrophages. It produces the highly oxidative compound HOCl from H 2 O 2 and Cl − ions inside the phagosome of the neutrophil. Leakage of the enzyme outside the cell causes oxidative damages for the biomolecules promoting many inflammatory diseases such as atherosclerosis. Thus, there is a real interest to develop potent inhibitors of MPO as non-steroidal anti-inflammatory agents. This review highlights the several published MPO inhibitors, their activity, and the challenges met during the development of these compounds. Areas covered: This article covers the patent literature published on MPO inhibitors from 2013 to 2019, as well as the potential use of these compounds as therapeutics for inflammatory syndromes, especially that plays an important role in the initiation and progression of atherosclerosis. Expert opinion: To date, many MPO inhibitors with different structures have been studied, many of which have prominent inhibitory activities. Furthermore, the specificity of these drugs offers hope for the targeted therapy of inflammatory syndromes. Although many data have proved that MPO can contribute to several chronic inflammatory syndromes, the usefulness of MPO inhibitors in preventing and treating inflammatory disorders is still under investigation.

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