%0 Journal Article
%T Polyphenols from Berries of Aronia melanocarpa Reduce the Plasma Lipid Peroxidation Induced by Ziprasidone
%A Anna Dietrich-Muszalska
%A Justyna Kopka
%A Bogdan Kontek
%J Schizophrenia Research and Treatment
%D 2014
%I Hindawi Publishing Corporation
%R 10.1155/2014/602390
%X Background. Oxidative stress in schizophrenia may be caused partially by the treatment of patients with antipsychotics. The aim of the study was to establish the effects of polyphenol compounds derived from berries of Aronia melanocarpa (Aronox) on the plasma lipid peroxidation induced by ziprasidone in vitro. Methods. Lipid peroxidation was measured by the level of thiobarbituric acid reactive species (TBARS). The samples of plasma from healthy subjects were incubated with ziprasidone (40£¿ng/ml; 139£¿ng/ml; and 250£¿ng/ml) alone and with Aronox (5£¿ug/ml; 50£¿ug/ml). Results. We observed a statistically significant increase of TBARS level after incubation of plasma with ziprasidone (40£¿ng/ml; 139£¿ng/ml; and 250£¿ng/ml) (after 24£¿h incubation: ¡Á 10£¿4, ¡Á 10£¿3, and ¡Á 10£¿3, resp.) and Aronox lipid peroxidation caused by ziprasidone was significantly reduced. After 24-hour incubation of plasma with ziprasidone (40£¿ng/ml; 139£¿ng/ml; and 250£¿ng/ml) in the presence of 50£¿ug/ml Aronox, the level of TBARS was significantly decreased: ¡Á 10£¿8, ¡Á 10£¿6, and ¡Á 10£¿5, respectively. Conclusion. Aronox causes a distinct reduction of lipid peroxidation induced by ziprasidone. 1. Introduction Oxidative stress plays an important role in schizophrenia and other psychiatric disorders. Schizophrenia is a chronic psychiatric disorder that affects at young age many cultures around the world. The aetiology of schizophrenia remains elusive, although several hypotheses have been suggested including abnormalities in cell membrane phospholipids metabolism or its alteration and dysfunction of cell membranes. Oxidative stress plays an important role in the pathophysiology of schizophrenia [1¨C9]. In schizophrenic patients, dysregulation of reactive oxygen species (ROS) generation and metabolism, as detected by abnormal activities of critical antioxidant enzymes and other indicators such as lipid peroxidation in plasma, red blood cells, blood platelets, and cerebrospinal fluid, are observed [3, 10¨C12]. It is well known that oxidative stress with peroxidation of polyunsaturated fatty acids (PUFA) in the membrane can lead to the abnormalities that have been observed in schizophrenia [11, 13, 14]. Oxidative stress occurs when the production of ROS exceeds the natural antioxidant defence mechanisms, causing damage to macromolecules such as DNA, proteins, and lipids. Antioxidant defence mechanisms remove the free radicals to prevent oxidative damage to biomolecules. The antioxidant system comprises of different types of functional components such as enzymatic (superoxide dismutase, catalase,
%U http://www.hindawi.com/journals/schizort/2014/602390/