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Todorović A, Bobić K, Veljković F, Pejić S, Glumac S, Stanković S, Milovanović T, Vukoje I, Nedeljković JM, Radojević Škodrić S, Pajović SB, Drakulić D. Comparable Toxicity of Surface-Modified TiO 2 Nanoparticles: An In Vivo Experimental Study on Reproductive Toxicity in Rats. Antioxidants (Basel) 2024; 13:231. [PMID: 38397829 PMCID: PMC10886084 DOI: 10.3390/antiox13020231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/07/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024] Open
Abstract
Nanoparticles (NPs), a distinct class of particles ranging in size from 1 to 100 nm, are one of the most promising technologies of the 21st century, and titanium dioxide NPs (TiO2 NPs) are among the most widely produced and used NPs globally. The increased application of TiO2 NPs raises concerns regarding their global safety and risks of exposure. Many animal studies have reported the accumulation of TiO2 NPs in female reproductive organs; however, evidence of the resultant toxicity remains ambiguous. Since the surface area and chemical modifications of NPs can significantly change their cytotoxicity, we aimed to compare the toxic effects of pristine TiO2 powder with surface-modified TiO2 powders with salicylic acid (TiO2/SA) and 5-aminosalicylic acid (TiO2/5-ASA) on the ovaries, oviducts, and uterus on the 14th day following acute oral treatment. The results, based on alterations in food and water intake, body mass, organ-to-body mass ratio, hormonal status, histological features of tissues of interest, and antioxidant parameters, suggest that the modification with 5-ASA can mitigate some of the observed toxic effects of TiO2 powder and encourage future investigations to create NPs that can potentially reduce the harmful effects of TiO2 NPs while preserving their positive impacts.
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Affiliation(s)
- Ana Todorović
- Department of Molecular Biology and Endocrinology, VINČA Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (A.T.); (K.B.); (S.P.); (S.B.P.); (D.D.)
| | - Katarina Bobić
- Department of Molecular Biology and Endocrinology, VINČA Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (A.T.); (K.B.); (S.P.); (S.B.P.); (D.D.)
| | - Filip Veljković
- Department of Physical Chemistry, VINČA Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia;
| | - Snežana Pejić
- Department of Molecular Biology and Endocrinology, VINČA Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (A.T.); (K.B.); (S.P.); (S.B.P.); (D.D.)
| | - Sofija Glumac
- Institute of Pathology, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Sanja Stanković
- Centre for Medical Biochemistry, University Clinical Centre of Serbia, 11000 Belgrade, Serbia;
- Faculty of Medical Sciences, University of Kragujevac, 550601 Kragujevac, Serbia
| | | | - Ivana Vukoje
- Department of Radiation Chemistry and Physics, VINČA Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (I.V.); (J.M.N.)
| | - Jovan M. Nedeljković
- Department of Radiation Chemistry and Physics, VINČA Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (I.V.); (J.M.N.)
| | | | - Snežana B. Pajović
- Department of Molecular Biology and Endocrinology, VINČA Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (A.T.); (K.B.); (S.P.); (S.B.P.); (D.D.)
| | - Dunja Drakulić
- Department of Molecular Biology and Endocrinology, VINČA Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (A.T.); (K.B.); (S.P.); (S.B.P.); (D.D.)
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Grigorov I, Pejić S, Todorović A, Drakulić D, Veljković F, Vukajlović JM, Bobić K, Soldatović I, Đurašević S, Jasnić N, Stanković S, Glumac S, Mihailović-Vučinić V, Milenković B. Serum High-Mobility Group Box 1 and Heme Oxygenase-1 as Biomarkers in COVID-19 Patients at Hospital Admission. Int J Mol Sci 2023; 24:13164. [PMID: 37685970 PMCID: PMC10488018 DOI: 10.3390/ijms241713164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/06/2023] [Accepted: 08/18/2023] [Indexed: 09/10/2023] Open
Abstract
The careful monitoring of patients with mild/moderate COVID-19 is of particular importance because of the rapid progression of complications associated with COVID-19. For prognostic reasons and for the economic management of health care resources, additional biomarkers need to be identified, and their monitoring can conceivably be performed in the early stages of the disease. In this retrospective cross-sectional study, we found that serum concentrations of high-mobility group box 1 (HMGB1) and heme oxygenase-1 (HO-1), at the time of hospital admission, could be useful biomarkers for COVID-19 management. The study included 160 randomly selected recovered patients with mild to moderate COVID-19 on admission. Compared with healthy controls, serum HMGB1 and HO-1 levels increased by 487.6 pg/mL versus 43.1 pg/mL and 1497.7 pg/mL versus 756.1 pg/mL, respectively. Serum HO-1 correlated significantly with serum HMGB1, oxidative stress parameters (malondialdehyde (MDA), the phosphatidylcholine/lysophosphatidylcholine ratio (PC/LPC), the ratio of reduced and oxidative glutathione (GSH/GSSG)), and anti-inflammatory acute phase proteins (ferritin, haptoglobin). Increased heme catabolism/hemolysis were not detected. We hypothesize that the increase in HO-1 in the early phase of COVID-19 disease is likely to have a survival benefit by providing protection against oxidative stress and inflammation, whereas the level of HMGB1 increase reflects the activity of the innate immune system and represents levels within which the disease can be kept under control.
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Affiliation(s)
- Ilijana Grigorov
- Institute for Biological Research “Siniša Stanković”—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
| | - Snežana Pejić
- Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (S.P.); (A.T.); (D.D.); (F.V.); (J.M.V.); (K.B.)
| | - Ana Todorović
- Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (S.P.); (A.T.); (D.D.); (F.V.); (J.M.V.); (K.B.)
| | - Dunja Drakulić
- Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (S.P.); (A.T.); (D.D.); (F.V.); (J.M.V.); (K.B.)
| | - Filip Veljković
- Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (S.P.); (A.T.); (D.D.); (F.V.); (J.M.V.); (K.B.)
| | - Jadranka Miletić Vukajlović
- Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (S.P.); (A.T.); (D.D.); (F.V.); (J.M.V.); (K.B.)
| | - Katarina Bobić
- Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (S.P.); (A.T.); (D.D.); (F.V.); (J.M.V.); (K.B.)
| | - Ivan Soldatović
- Institute of Medical Statistics and Informatic, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia;
| | - Siniša Đurašević
- Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia; (S.Đ.); (N.J.)
| | - Nebojša Jasnić
- Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia; (S.Đ.); (N.J.)
| | - Sanja Stanković
- Center for Medical Biochemistry, University Clinical Center of Serbia, 11000 Belgrade, Serbia;
| | - Sofija Glumac
- Institute of Pathology, School of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (S.G.); (V.M.-V.); (B.M.)
| | - Violeta Mihailović-Vučinić
- Institute of Pathology, School of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (S.G.); (V.M.-V.); (B.M.)
- Clinic for Pulmonary Diseases, University Clinical Center of Serbia, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Branislava Milenković
- Institute of Pathology, School of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (S.G.); (V.M.-V.); (B.M.)
- Clinic for Pulmonary Diseases, University Clinical Center of Serbia, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
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Gavrilović L, Popović N, Stojiljković V, Pejić S, Todorović A, Vujović P, Pajović SB. Antioxidant defense system in the prefrontal cortex of chronically stressed rats treated with lithium. PeerJ 2022; 10:e13020. [PMID: 35345589 PMCID: PMC8957266 DOI: 10.7717/peerj.13020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 02/07/2022] [Indexed: 01/11/2023] Open
Abstract
Background This study aimed to investigate the effects of lithium treatment on gene expression and activity of the prefrontal antioxidant enzymes: copper, zinc superoxide dismutase (SOD1), manganes superoxide dismutase (SOD2), catalase (CAT), and glutathione peroxidase (GPx) in animals exposed to chronic restraint stress (CRS). Methods The investigated parameters were quantified using real-time RT-PCR, Western blot analyses, and assays of enzyme activities. Results We found that lithium treatment decreased gene expression of SOD2, as well as the activities of SOD1 and SOD2 in chronically stressed rats to the levels found in unstressed animals. However, lithium treatment in animals exposed to CRS increased prefrontal GPx activity to the levels found in unstressed animals. Conclusions These findings confirm that treatment with lithium induced the modulation of prefrontal antioxidant status in chronically stressed rats. Our results may be very important in biomedical research for understanding the role of lithium in maintaining the stability of prefrontal antioxidant defense system in neuropsychiatric disorders caused by chronic stress.
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Affiliation(s)
- Ljubica Gavrilović
- Department of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Nataša Popović
- Department of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Vesna Stojiljković
- Department of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Snežana Pejić
- Department of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Ana Todorović
- Department of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Predrag Vujović
- Department for Comparative Physiology and Ecophysiology, Institute for Physiology and Biochemistry, Faculty of Biology, University of Belgrade, Belgrade, Serbia
| | - Snežana B. Pajović
- Department of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
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Gavrilovic L, Popović N, Stojiljković V, Pejić S, Todorović A, Pavlović I, Pantelić M, Pajović SB. Effects of mood stabilizer lithium on noradrenergic turnover in the prefrontal cortex of chronically stressed rats. Neuro Endocrinol Lett 2021; 42:171-176. [PMID: 34279860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 07/08/2021] [Indexed: 06/13/2023]
Abstract
OBJECTIVE Data about the dynamics of noradrenaline (NA) transmission, storage and degradation may be very important for understanding the reduction of functional deficiency of NA and maintaining the stability of NA levels in animals with depressive-like behavior treated with lithium. This study aimed to investigate the effects of mood stabilizer lithium on concentrations of NA in the prefrontal cortex (PFC), as well as behavior rats exposed to chronic restraint stress (CRS). In addition, this study examined the effects of lithium on protein levels of noradrenaline transporter (NET), vesicular monoamine transporter 2 (VMAT2) and catechol-O-methyltransferase (COMT), as well as the enzyme activity of monoamine oxidase A (MOA) in the PFC of chronically stressed rats. METHODS The investigated parameters were quantified by Western blot analysis, CAT Research ELISA kits, and an assay of enzyme activity. Also, the forced swim test (FST) was used to assess the behavior of animals. RESULTS We found that lithium treatment decreased high protein levels of NET and VMAT2, as well as the enzyme activity of MOA in chronically stressed rats to the levels found in unstressed animals. In addition, lithium treatment decreased the concentration of NA (24%) and immobility in animals exposed to CRS. CONCLUSION Our data confirm that lithium-induced modulation of prefrontal noradrenergic turnover and stabilized the behavior of chronically stressed rats.
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Affiliation(s)
- Ljubica Gavrilovic
- "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Laboratory of Molecular Biology and Endocrinology, University of Belgrade, Belgrade, Serbia
| | - Nataša Popović
- "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Laboratory of Molecular Biology and Endocrinology, University of Belgrade, Belgrade, Serbia
| | - Vesna Stojiljković
- "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Laboratory of Molecular Biology and Endocrinology, University of Belgrade, Belgrade, Serbia
| | - Snežana Pejić
- "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Laboratory of Molecular Biology and Endocrinology, University of Belgrade, Belgrade, Serbia
| | - Ana Todorović
- "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Laboratory of Molecular Biology and Endocrinology, University of Belgrade, Belgrade, Serbia
| | - Ivan Pavlović
- "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Laboratory of Molecular Biology and Endocrinology, University of Belgrade, Belgrade, Serbia
| | - Marija Pantelić
- "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Laboratory of Molecular Biology and Endocrinology, University of Belgrade, Belgrade, Serbia
| | - Snežana B Pajović
- "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Laboratory of Molecular Biology and Endocrinology, University of Belgrade, Belgrade, Serbia
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Todorović Vukotić N, Đorđević J, Pejić S, Đorđević N, Pajović SB. Antidepressants- and antipsychotics-induced hepatotoxicity. Arch Toxicol 2021; 95:767-789. [PMID: 33398419 PMCID: PMC7781826 DOI: 10.1007/s00204-020-02963-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 11/26/2020] [Indexed: 02/06/2023]
Abstract
Drug-induced liver injury (DILI) is a serious health burden. It has diverse clinical presentations that can escalate to acute liver failure. The worldwide increase in the use of psychotropic drugs, their long-term use on a daily basis, common comorbidities of psychiatric and metabolic disorders, and polypharmacy in psychiatric patients increase the incidence of psychotropics-induced DILI. During the last 2 decades, hepatotoxicity of various antidepressants (ADs) and antipsychotics (APs) received much attention. Comprehensive review and discussion of accumulated literature data concerning this issue are performed in this study, as hepatotoxic effects of most commonly prescribed ADs and APs are classified, described, and discussed. The review focuses on ADs and APs characterized by the risk of causing liver damage and highlights the ones found to cause life-threatening or severe DILI cases. In parallel, an overview of hepatic oxidative stress, inflammation, and steatosis underlying DILI is provided, followed by extensive review and discussion of the pathophysiology of AD- and AP-induced DILI revealed in case reports, and animal and in vitro studies. The consequences of some ADs and APs ability to affect drug-metabolizing enzymes and therefore provoke drug–drug interactions are also addressed. Continuous collecting of data on drugs, mechanisms, and risk factors for DILI, as well as critical data reviewing, is crucial for easier DILI diagnosis and more efficient risk assessment of AD- and AP-induced DILI. Higher awareness of ADs and APs hepatotoxicity is the prerequisite for their safe use and optimal dosing.
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Affiliation(s)
- Nevena Todorović Vukotić
- Department of Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 12-14 Mike Petrovića Alasa, P.O. Box 522-090, 11000, Belgrade, Serbia.
| | - Jelena Đorđević
- Institute of Physiology and Biochemistry "Ivan Đaja", Faculty of Biology, University of Belgrade, 16 Studentski Trg, 11000, Belgrade, Serbia
| | - Snežana Pejić
- Department of Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 12-14 Mike Petrovića Alasa, P.O. Box 522-090, 11000, Belgrade, Serbia
| | - Neda Đorđević
- Department of Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 12-14 Mike Petrovića Alasa, P.O. Box 522-090, 11000, Belgrade, Serbia
| | - Snežana B Pajović
- Department of Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 12-14 Mike Petrovića Alasa, P.O. Box 522-090, 11000, Belgrade, Serbia.,Faculty of Medicine, University of Niš, 81 Blvd. Dr. Zorana Đinđića, 18000, Niš, Serbia
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Miletić Vukajlović J, Drakulić D, Pejić S, Ilić TV, Stefanović A, Petković M, Schiller J. Increased plasma phosphatidylcholine/lysophosphatidylcholine ratios in patients with Parkinson's disease. Rapid Commun Mass Spectrom 2020; 34:e8595. [PMID: 31519070 DOI: 10.1002/rcm.8595] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 09/03/2019] [Accepted: 09/08/2019] [Indexed: 06/10/2023]
Abstract
RATIONALE Changes in lipid composition might be associated with the onset and progression of various neurodegenerative diseases. Herein, we investigated the changes in the plasma phosphatidylcholine (PC)/lysophosphatidylcholine (LPC) ratios in patients with Parkinson's disease (PD) in comparison with healthy subjects and their correlation with clinico-pathological features. METHODS The study included 10 controls and 25 patients with PD. All patients were assigned to groups based on clinico-pathological characteristics (gender, age at examination, duration of disease and Hoehn and Yahr (H&Y) stage). The analysis of the PC/LPC intensity ratios in plasma lipid extracts was performed using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. RESULTS PD patients exhibited an increased PC/LPC intensity ratio in comparison with the control group of healthy subjects. Furthermore, the investigated ratio was shown to be correlated with clinico-pathological parameters, in particular with H&Y stage and disease duration. The PC/LPC intensity ratio in plasma samples of PD patients was found to be elevated in all examined H&Y stages and throughout the disease duration. CONCLUSIONS To our knowledge, this is the first study examining the PC/LPC ratios in plasma of patients with PD and illustrating their correlation with clinico-pathological features. Although the presented results may be considered as preliminary due to the limited number of participants, the observed alterations of PC/LPC ratios in plasma might be a first step in the characterization of plasma lipid changes in PD patients and an indicator of lipid reconfiguration.
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Affiliation(s)
- Jadranka Miletić Vukajlović
- Department of Physical Chemistry, VINČA Institute of Nuclear Sciences - University of Belgrade, Belgrade, Republic of Serbia
| | - Dunja Drakulić
- Department of Molecular Biology and Endocrinology, VINČA Institute of Nuclear Sciences - University of Belgrade, Belgrade, Republic of Serbia
| | - Snežana Pejić
- Department of Molecular Biology and Endocrinology, VINČA Institute of Nuclear Sciences - University of Belgrade, Belgrade, Republic of Serbia
| | - Tihomir V Ilić
- Medical Faculty of Medical Military Academy, Clinic of Neurology, University of Defense, Belgrade, Republic of Serbia
| | - Aleksandra Stefanović
- Department of Medical Biochemistry, Faculty of Pharmacy - University of Belgrade, Belgrade, Republic of Serbia
| | - Marijana Petković
- Madeira Chemistry Research Centre, University of Madeira, Funchal, Portugal
- Department of Atomic Physics, VINČA Institute of Nuclear Sciences - University of Belgrade, Belgrade, Republic of Serbia
| | - Jürgen Schiller
- Institute of Medical Physics and Biophysics, Medical Department, University of Leipzig, Leipzig, Germany
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Gavrilović L, Popović N, Stojiljković V, Pejić S, Todorović A, Pavlović I, Pajović SB. Changes of Hippocampal Noradrenergic Capacity in Stress Condition. Folia Biol (Praha) 2020; 66:81-84. [PMID: 32851838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
This study aimed to investigate the effects of chronic restraint stress (CRS) on the protein levels of dopamine-β-hydroxylase (DBH), noradrenaline transporter (NET), vesicular monoamine transporter 2 (VMAT2) and brain-derived neurotrophic factor (BDNF), as well as the concentration of noradrenaline (NA) in the rat hippocampus. The investigated parameters were quantified by Western blot analyses and ELISA kits. We found that CRS increased the protein levels of DBH by 30 %, VMAT2 by 11 %, BDNF by 11 % and the concentration of NA by 104 %, but decreased the protein levels of NET by 16 % in the hippocampus of chronically stressed rats. The molecular mechanisms by which CRS increased the hippocampal NA level are an important adaptive phenomenon of the noradrenergic system in the stress condition.
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Affiliation(s)
- L Gavrilović
- "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Laboratory of Molecular Biology and Endocrinology, University of Belgrade, Belgrade, Serbia
| | - N Popović
- "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Laboratory of Molecular Biology and Endocrinology, University of Belgrade, Belgrade, Serbia
| | - V Stojiljković
- "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Laboratory of Molecular Biology and Endocrinology, University of Belgrade, Belgrade, Serbia
| | - S Pejić
- "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Laboratory of Molecular Biology and Endocrinology, University of Belgrade, Belgrade, Serbia
| | - A Todorović
- "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Laboratory of Molecular Biology and Endocrinology, University of Belgrade, Belgrade, Serbia
| | - I Pavlović
- "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Laboratory of Molecular Biology and Endocrinology, University of Belgrade, Belgrade, Serbia
| | - S B Pajović
- "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Laboratory of Molecular Biology and Endocrinology, University of Belgrade, Belgrade, Serbia
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Pavlović I, Pejić S, Radojević-Škodrić S, Todorović A, Stojiljković V, Gavrilović L, Popović N, Basta-Jovanović G, Džamić Z, Pajović SB. The effect of antioxidant status on overall survival in renal cell carcinoma. Arch Med Sci 2020; 16:94-101. [PMID: 32051711 PMCID: PMC6963148 DOI: 10.5114/aoms.2019.86818] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 07/26/2017] [Indexed: 01/03/2023] Open
Abstract
INTRODUCTION The oxidative stress contributes to all three phases of carcinogenesis and represents a concomitant condition in renal cell carcinoma (RCC). RCC is the most common type of neoplasm of the kidney, and despite numerous studies the set of predictive and prognostic markers of survival are still unknown. The aim of our study was to examine the relation between antioxidant (AO) status and overall survival (OS) in RCC patients. MATERIAL AND METHODS Our study included 95 patients with RCC, who underwent radical nephrectomy. We analysed the prognostic role of antioxidant enzymes (superoxide dismutase, catalase, glutathione peroxidase, glutathione S-transferase, glutathione reductase, glutathione, and malondialdehyde) and other clinicopathological factors (size, grade, stage, and histological subtype) on the OS of RCC patients. RESULTS The 5-year OS was 54.6%. The survival analysis related to AO parameters showed no significant difference in survival of RCC patients. The concentration of malondialdehyde, an indicator of lipid peroxidation, also had no significant effect on the survival rate of RCC patients. Univariate and multivariate analysis confirmed the significance of clinicopathological parameters (size, p < 0.001; Fuhrman grade, p = 0.001, and stage, p < 0.001) for patients' survival. CONCLUSIONS In our cohort of patients, different antioxidant parameters were not found to be predictors for OS of patients with RCC, who underwent radical nephrectomy.
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Affiliation(s)
- Ivan Pavlović
- Laboratory of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | - Snežana Pejić
- Laboratory of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | | | - Ana Todorović
- Laboratory of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | - Vesna Stojiljković
- Laboratory of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | - Ljubica Gavrilović
- Laboratory of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | - Nataša Popović
- Laboratory of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | | | - Zoran Džamić
- Clinic of Urology, Clinical Centre of Serbia, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Snežana B. Pajović
- Laboratory of Molecular Biology and Endocrinology, “Vinča” Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
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Popović N, Pajović SB, Stojiljković V, Todorović A, Pejić S, Pavlović I, Gavrilović L. Activities of the Dopaminergic System and Glutathione Antioxidant System in the Hippocampus of Stressed rats. NEUROPHYSIOLOGY+ 2019. [DOI: 10.1007/s11062-019-09758-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Radojević-Škodrić S, Brašanac D, Đuričić SM, Glumac S, Lončar Z, Pavlović I, Todorović A, Nikolić G, Baralić I, Pejić S. Immunohistochemical analysis of cyclin A expression in Wilms tumor. PeerJ 2019; 6:e6212. [PMID: 30648000 PMCID: PMC6330955 DOI: 10.7717/peerj.6212] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 12/03/2018] [Indexed: 01/01/2023] Open
Abstract
Background Cyclin A overexpression is found in a variety of human tumors and correlates with unfavorable outcome. We analyzed immunohistochemical expression of cyclin A in Wilms tumor (WT) in relation to clinicopathological characteristics, preoperative chemotherapy (PrOpChTh), and overall survival (OS). Methods This retrospective study involved 43 patients who underwent nephrectomy from January 1996 to October 2010. Tumor stage and histological subtype were determined by revised Societé International d’Oncologie Pediatrique protocol, based on histological components/alterations caused by PrOpChTh, within the prognostic group of low, intermediate and high risk, and with criteria for anaplasia. The regressive/necrotic changes in total tumor mass of primary tumor and the proportion of epithelial, blastemal, and stromal components in the remaining viable tumor tissue were also determined. Cyclin A expression was evaluated by immunohistochemistry using a polyclonal rabbit, antihuman antibody (H-432). Results Cyclin A overexpression was found in 34.3% of WTs, with higher frequency in tumors with epithelial (31.3%) and blastemal (37.1%) components than those with stromal component (17.7%). Regarding histological type, cyclin A overexpression was found most often in focal anaplasia (100%), stromal (60%), and diffuse anaplastic (66.7) WTs. The overexpression was also more frequent in stages 3 and 4 (77.8% and 66.7%, respectively) compared to tumors in stages 1 and 2 (13.3% and 12.5%, respectively; p = 0.004) in all components, as well as in blastemal component in stages 3 and 4 (77.8% and 66.7%, respectively) vs. stages 1 and 2 (13.3% and 25%, respectively, p = 0.009). Cyclin A overexpression in all components was 66.7% in WTs with metastasis and 31.3% in WTs without metastasis (p = 0.265, Fisher test). Log-rank testing revealed differences of OS regarding stage (p = 0.000), prognostic groups (p = 0.001), and cyclin A expression in blastemal component (p = 0.025). After univariate analysis, tumor stage (p = 0.001), prognostic group (p = 0.004), and cyclin A expression in blastemal component (p = 0.042) were significant prognostic factors for OS; however, after multivariate analysis, none of these factors were confirmed as independent predictors of survival. Discussion This study showed that cyclin A overexpression might be associated with the development and progression of WT with anaplasia. Also, cyclin A overexpression was more often observed in advanced stages (3 and 4) of WT, in the group of high-risk WTs, and in focal and diffuse anaplasia WTs. There was no relation of cyclin A overexpression and metastatic ability of WT. Although this study has not confirmed the prognostic value of cyclin A overexpression, its association with unfavorable prognosis should be further evaluated.
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Affiliation(s)
| | - Dimitrije Brašanac
- Institute of Pathology, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Slaviša M Đuričić
- Department of Clinical Pathology, Mother and Child Health Care Institute of Serbia "Dr. Vukan Čupić", Belgrade, Serbia.,School of Medicine, Banjaluka University, Banjaluka, Bosnia and Herzegovina
| | - Sofija Glumac
- Institute of Pathology, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Zlatibor Lončar
- Clinic for Emergency Surgery, Clinical Center of Serbia, Belgrade, Serbia
| | - Ivan Pavlović
- Laboratory of Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | - Ana Todorović
- Laboratory of Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | - Gorana Nikolić
- Department of Biomedical Engineering, Innovation Center, Faculty of Mechanical Engineering, University of Belgrade, Belgrade, Serbia
| | - Ivana Baralić
- Zvezdara University Medical Center, Belgrade, Serbia
| | - Snežana Pejić
- Laboratory of Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
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Popović N, Pajović BS, Stojiljković V, Todorović A, Pejić S, Pavlović I, Gavrilović L. Increased Activity of Hippocampal Antioxidant Enzymes as an Important Adaptive Phenomenon of the Antioxidant Defense System in Chronically Stressed Rats. ACTA VET-BEOGRAD 2017. [DOI: 10.1515/acve-2017-0043] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Abstract
This study examined the effects of chronic restraint stress (CRS: 2 hours × 14 days) on gene expression of three antioxidant enzymes, copper, zinc superoxide dismutase (SOD 1), manganese superoxide dismutase (SOD 2) and catalase (CAT) in the rat hippocampus. Also, we examined changes in the activities of SOD 1, SOD 2 and CAT in the hippocampus of chronically stressed rats. Investigated parameters were quantifi ed by using real-time RT-PCR, Western blot analysis and assay of enzymatic activity. We found that CRS did not change mRNA and protein levels of SOD 1 and CAT, but increased mRNA and protein levels of SOD 2. However, CRS treatment increased the enzyme activities of SOD 1, SOD 2 and CAT. Our fi ndings indicate that the increased activity of antioxidant enzymes (SOD 1, SOD 2 and CAT) in the hippocampus may be an important adaptive phenomenon of the antioxidant defense system in chronically stressed rats.
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Affiliation(s)
- Nataša Popović
- Institute of Nuclear Sciences “Vinča”, Laboratory of Molecular Biology and Endocrinology, University of Belgrade, Belgrade , Serbia
| | - B. Snežana Pajović
- Institute of Nuclear Sciences “Vinča”, Laboratory of Molecular Biology and Endocrinology, University of Belgrade, Belgrade , Serbia
| | - Vesna Stojiljković
- Institute of Nuclear Sciences “Vinča”, Laboratory of Molecular Biology and Endocrinology, University of Belgrade, Belgrade , Serbia
| | - Ana Todorović
- Institute of Nuclear Sciences “Vinča”, Laboratory of Molecular Biology and Endocrinology, University of Belgrade, Belgrade , Serbia
| | - Snežana Pejić
- Institute of Nuclear Sciences “Vinča”, Laboratory of Molecular Biology and Endocrinology, University of Belgrade, Belgrade , Serbia
| | - Ivan Pavlović
- Institute of Nuclear Sciences “Vinča”, Laboratory of Molecular Biology and Endocrinology, University of Belgrade, Belgrade , Serbia
| | - Ljubica Gavrilović
- Institute of Nuclear Sciences “Vinča”, Laboratory of Molecular Biology and Endocrinology, University of Belgrade, Belgrade , Serbia
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Miletić J, Drakulić D, Pejić S, Petković M, Ilić TV, Miljković M, Stefanović A, Prostran M, Stojanov M. Prooxidant-antioxidant balance, advanced oxidation protein products and lipid peroxidation in Serbian patients with Parkinson's disease. Int J Neurosci 2017; 128:600-607. [PMID: 29148896 DOI: 10.1080/00207454.2017.1403916] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
BACKGROUND Biomarkers of oxidative stress are relevant in the evaluation of the disease status and prooxidant-antioxidant balance, advanced oxidation protein products and lipid peroxidation products (malondialdehyde and 4-hydroxynonenal) are being extensively evaluated regarding their relationship with clinical presentation and disease severity. AIM OF THE STUDY The aim of this study was to evaluate the levels of the above-mentioned parameters in plasma of 39 men and 17 women with Parkinson's disease, originated from the Republic of Serbia and their relation to clinicopathological characteristics (gender, age at examination, duration of the disease, and Hoehn and Yahr score) and oxidative status. RESULTS The incidence of disease was 2:1 towards males. The investigated oxidative parameters were gender and Hoehn and Yahr related. Significant association of higher Hoehn and Yahr scores was observed for malondialdehyde (p = 0.01) and prooxidant-antioxidant balance (p = 0.02). Relation between oxidant-antioxidant status was further supported by observed positive correlation between 4-hydroxynonenal (p = 0.04) and prooxidant-antioxidant balance (p = 0.03). Finally, the multivariate analysis indicated that prooxidant-antioxidant balance and malondialdehyde were partially determined by gender (10.6% and 7.6%) and Hoehn and Yahr scores (13.6% and 18.8%), while Hoehn and Yahr scores contributed to the variance of advanced oxidation protein products with 13.2%. CONCLUSION Our results indicate the higher level of oxidative stress (oxidant-antioxidant imbalance) and possible relation of several markers with gender and disease stage in patients with Parkinson's disease. The analyzed markers could be used to specify the severity of oxidative stress; however, their potential value should be analyzed in further studies.
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Affiliation(s)
- Jadranka Miletić
- a Department of Physical Chemistry , VINČA Institute of Nuclear Sciences - University of Belgrade, Belgrade , Republic of Serbia
| | - Dunja Drakulić
- b Department of Molecular Biology and Endocrinology , VINČA Institute of Nuclear Sciences - University of Belgrade , Belgrade , Republic of Serbia
| | - Snežana Pejić
- b Department of Molecular Biology and Endocrinology , VINČA Institute of Nuclear Sciences - University of Belgrade , Belgrade , Republic of Serbia
| | - Marijana Petković
- a Department of Physical Chemistry , VINČA Institute of Nuclear Sciences - University of Belgrade, Belgrade , Republic of Serbia
| | - Tihomir V Ilić
- c Medical Faculty of Medical Military Academy, Clinic of Neurology , University of Defense , Belgrade , Republic of Serbia
| | - Milica Miljković
- d Department of Medical Biochemistry , Faculty of Pharmacy - University of Belgrade , Belgrade , Republic of Serbia
| | - Aleksandra Stefanović
- d Department of Medical Biochemistry , Faculty of Pharmacy - University of Belgrade , Belgrade , Republic of Serbia
| | - Milica Prostran
- e Department of Pharmacology, Clinical Pharmacology and Toxicology , School of Medicine - University of Belgrade , Belgrade , Republic of Serbia
| | - Marina Stojanov
- d Department of Medical Biochemistry , Faculty of Pharmacy - University of Belgrade , Belgrade , Republic of Serbia
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Popović N, Pajović S, Stojiljković V, Pejić S, Todorović A, Pavlović I, Gavrilović L. Prefrontal Catecholaminergic Turnover and Antioxidant Defense System of Chronically Stressed Rats. Folia Biol (Praha) 2017. [DOI: 10.3409/fb65_1.43] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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14
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Pejić S, Stojiljković V, Todorović A, Gavrilović L, Pavlović I, Popović N, Pajović SB. Antioxidant Enzymes in Brain Cortex of Rats Exposed to Acute, Chronic and Combined Stress. Folia Biol (Praha) 2016. [DOI: 10.3409/fb64_3.189] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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15
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Pejić S, Todorović A, Stojiljković V, Pavlović I, Gavrilović L, Popović N, Pajović SB. Antioxidant status and sex hormones in women with complex endometrial hyperplasia. Cell Mol Biol (Noisy-le-grand) 2016; 62:51-56. [PMID: 27755952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Accepted: 09/07/2016] [Indexed: 06/06/2023]
Abstract
Endometrial tissue is under a strong influence of sex hormones. These hormones are considered as developmental factors of endometrial hyperplasia and endometrial cancer. We examined the influence of gonadotropins (follicle-stimulating and luteinizing hormone) and sex hormones (estradiol, progesterone) on oxidant/antioxidant parameters in blood and endometrial tissue of women with complex endometrial hyperplasia. In blood, superoxide dismutase activity was significantly higher in luteal phase and postmenopause compared to the follicular phase. A significant phase-related difference of glutathione peroxidase and glutathione reductase activity was recorded in the endometrium. Both enzymes had lower activity in luteal phase and postmenopause compared to the follicular phase. The linear regression analysis of individual hormonal variables against antioxidant parameters showed negative correlation between glutathione peroxidase activity and gonadotropin concentrations in the endometrium. The regression of hyperplastic to normal endometrium is the purpose of conservative treatment based on administration of progestogens or gonadotropin-releasing hormone analogues. Our findings indicate that gonadotropins influence the antioxidant enzymes activity in women with complex endometrial hyperplasia, which may affect disease development. Further studies are needed to clarify the molecular basis of hormone action on antioxidant system that may potentially initiate a development of treatments based on redox-dependent mechanism.
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Affiliation(s)
- S Pejić
- University of Belgrade Laboratory of Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences Belgrade Serbia
| | - A Todorović
- University of Belgrade Laboratory of Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences Belgrade Serbia
| | - V Stojiljković
- University of Belgrade Laboratory of Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences Belgrade Serbia
| | - I Pavlović
- University of Belgrade Laboratory of Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences Belgrade Serbia
| | - L Gavrilović
- University of Belgrade Laboratory of Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences Belgrade Serbia
| | - N Popović
- University of Belgrade Laboratory of Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences Belgrade Serbia
| | - S B Pajović
- University of Belgrade Laboratory of Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences Belgrade Serbia
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Glumac S, Pejić S, Kostadinovic S, Stojšić Z, Vasiljevic J. Apoptosis in Endomyocardial Biopsies from Patients with Dilated Cardiomyopathy. Folia Biol (Praha) 2016; 62:207-211. [PMID: 27978416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Apoptosis is an active energy-consuming mechanism of cell death, which may contribute to heart failure in patients with dilated cardiomyopathy. Dilated cardiomyopathy is a common clinical outcome of many prolonged cardiac insults, and therefore is considered as the most prevalent form of cardiomyopathy. Loss of heart mass is highly correlated with the heart failure and mortality, thus the purpose of this study was to define the apoptotic index in patients with dilated cardiomyopathy. Apoptosis was detected by the TUNEL method in 30 patients. Biopsies were obtained from the left ventricle, and at least three specimens were taken. TUNEL-positive cardiomyocytes were found in 26 of 30 cases (86.7 %) and the mean apoptotic index for the entire specimen series was 5.41 ± 1.70 %. The analysis showed that patients with dilated cardiomyopathy had significantly higher apoptotic index (P < 0.001) than healthy subjects. One subject (man, 41 years old) had a markedly elevated apoptotic index of 52.2 %. In the remaining subjects, the percentage of cardiomyocyte death ranged from 0 % to 15.5 %. The high percentage of apoptosis found in our study may be in accordance with the clinically manifested cardiac failure in patients with dilated cardiomyopathy since in most patients we recorded the left ventricular ejection fraction values below 30 %.
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Affiliation(s)
- S Glumac
- Institute of Pathology, Faculty of Medicine, University of Belgrade, Serbia
| | - S Pejić
- Laboratory for Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences, University of Belgrade, Serbia
| | - S Kostadinovic
- Clinical Research, PhD studies, Faculty of Medicine, University of Novi Sad, Serbia
| | - Z Stojšić
- Institute of Pathology, Faculty of Medicine, University of Belgrade, Serbia
| | - J Vasiljevic
- Institute of Pathology, Faculty of Medicine, University of Belgrade, Serbia
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Todorović A, Pejić S, Stojiljković V, Gavrilović L, Popović N, Pavlović I, Saičić ZS, Pajović SB. Antioxidative enzymes in irradiated rat brain-indicators of different regional radiosensitivity. Childs Nerv Syst 2015; 31:2249-56. [PMID: 26143278 DOI: 10.1007/s00381-015-2807-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Accepted: 06/23/2015] [Indexed: 12/01/2022]
Abstract
PURPOSE Previously, we examined manganese superoxide dismutase (MnSOD), copper-zinc superoxide dismutase (CuZnSOD), and catalase (CAT) activities in rat brain irradiated with 2 or 3 Gy of γ-rays. The results indicated that lower MnSOD activity and inducibility found in hippocampus might explain higher radiosensitivity of this brain region. Thus, in this study, we wanted to determine changes of MnSOD, CuZnSOD, and CAT activities after dose of 5 Gy and to find out if differences in MnSOD activity are caused by changes in its expression. METHODS Heads of 4-day-old female rats were irradiated with γ-rays, using (60)Co. Animals were sacrificed 1/24 h after exposure. Hippocampus and cortex tissues were prepared for enzyme activity measurements and Western blot analysis. RESULTS One hour after exposure, γ-rays significantly decreased MnSOD activity in both examined brain regions. Twenty-four hours later, MnSOD recovery showed dose and regional dependence. It was weaker at higher doses and in hippocampal region. MnSOD expression changed in the similar manner as MnSOD activity only at lower doses of γ-rays. In both examined brain regions, gamma radiation significantly decreased CuZnSOD activity and did not change activity of CAT. CONCLUSIONS Our results confirmed that MnSOD plays an important role in different regional radiosensitivity but also showed that depending on dose, radiation affects MnSOD level by utterly different mechanisms. Postradiation changes of CuZnSOD and CAT are not regionally specific and therefore, cannot account for the different radiosensitivity of the hippocampus and cortex.
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Affiliation(s)
- Ana Todorović
- Laboratory of Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, University of Belgrade, PO Box 522, 11001, Belgrade, Serbia.
| | - Snežana Pejić
- Laboratory of Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, University of Belgrade, PO Box 522, 11001, Belgrade, Serbia
| | - Vesna Stojiljković
- Laboratory of Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, University of Belgrade, PO Box 522, 11001, Belgrade, Serbia
| | - Ljubica Gavrilović
- Laboratory of Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, University of Belgrade, PO Box 522, 11001, Belgrade, Serbia
| | - Nataša Popović
- Laboratory of Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, University of Belgrade, PO Box 522, 11001, Belgrade, Serbia
| | - Ivan Pavlović
- Laboratory of Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, University of Belgrade, PO Box 522, 11001, Belgrade, Serbia
| | - Zorica S Saičić
- Department of Physiology, Institute for Biological Research "Siniša Stanković", University of Belgrade, 11060, Belgrade, Serbia
| | - Snežana B Pajović
- Laboratory of Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, University of Belgrade, PO Box 522, 11001, Belgrade, Serbia
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Pejić S, Todorović A, Stojiljković V, Gavrilović L, Popović N, Pajović SB. Antioxidant status in women with uterine leiomyoma: relation with sex hormones. AN ACAD BRAS CIENC 2015; 87:1771-82. [PMID: 26421458 DOI: 10.1590/0001-3765201520130416] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Uterine leiomyomas are benign soft-tissues tumors that arise from uterine smooth muscle tissue. Etiopathogenesis of leiomyomas is not well understood. We aimed to examine whether antioxidant enzyme activities and lipid hydroperoxides level in patients with leiomyoma are influenced by changes in sex hormones and gonadotropins (estradiol (E2), progesterone, FSH, and LH) during menstrual cycle and in postmenopause. The material consisted of blood and uterine tissue specimens. Hormone concentrations were determined and assays for superoxide dismutase, catalase, glutathione peroxidase and glutathione reductase activities and lipid hydroperoxides concentration were performed. In blood of examined women, a significant difference in catalase, glutathione peroxidase and glutathione reductase activity was recorded among the phases. There was also a positive correlation between the estradiol/progesterone concentration and the catalase activity. Progesterone negatively correlated with lipid hydroperoxides level. In myoma tissue, we recorded a phase-related difference in lipid hydroperoxides level and activities of superoxide dismutase, glutathione peroxidase activities, and glutathione reductase. Negative correlation was observed between FSH and glutathione peroxidase. The results suggest that antioxidant status in patients with uterine leiomyoma is influenced by the changes in sex hormones during the menstrual cycle and in postmenopause, indicating a role of the observed relationship in the leiomyoma etiology.
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Pejić S, Stojiljković V, Todorović A, Gavrilović L, Popović N, Pavlović I, Pajović SB. Antioxidant status in blood of gynaecological patients: influence of diagnosis and reproductive factors. Folia Biol (Praha) 2015; 61:26-32. [PMID: 25958308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Cancer of the reproductive tract is an important cause of morbidity and mortality among women worldwide. In this study we evaluated the influence of diagnostic categories, age and reproductive factors on antioxidant enzymes and lipid hydroperoxides in the blood of gynaecological patients diagnosed with endometrial polyp, myoma, hyperplasia simplex, hyperplasia complex and endometrial adenocarcinoma. Multivariate regression analysis was used to assess the association of diagnosis, age, parity, abortions and abnormal uterine bleeding with the examined parameters. Diagnosis provided the best predictive model for superoxide dismutase, catalase and glutathione peroxidase activities, and also for the lipid hydroperoxide level. Abortions fitted the best predictive model for superoxide dismutase activity. A significant correlation was also found between the predictor variables themselves. This study showed that reproductive and other factors may be associated, at least partially, with antioxidant capacity and ability to defend against the oxidative damage in gynaecological patients with various diagnoses.
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Affiliation(s)
- S Pejić
- Laboratory of Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | - V Stojiljković
- Laboratory of Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | - A Todorović
- Laboratory of Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | - L Gavrilović
- Laboratory of Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | - N Popović
- Laboratory of Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | - I Pavlović
- Laboratory of Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
| | - S B Pajović
- Laboratory of Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
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Gavrilović L, Stojiljković V, Kasapović J, Pejić S, Todorović A, Pajović SB, Dronjak S. Forced exercise changes catecholamine synthesis in the spleen of adult rats. J Neuroimmunol 2012; 251:1-5. [DOI: 10.1016/j.jneuroim.2012.06.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2011] [Revised: 05/07/2012] [Accepted: 06/04/2012] [Indexed: 10/28/2022]
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Kasapović J, Pejić S, Stojiljković V, Todorović A, Radošević-Jelić L, Saičić ZS, Pajović SB. Antioxidant status and lipid peroxidation in the blood of breast cancer patients of different ages after chemotherapy with 5-fluorouracil, doxorubicin and cyclophosphamide. Clin Biochem 2010; 43:1287-93. [PMID: 20713039 DOI: 10.1016/j.clinbiochem.2010.08.009] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2010] [Revised: 07/13/2010] [Accepted: 08/02/2010] [Indexed: 11/29/2022]
Abstract
OBJECTIVES Breast carcinoma is related to the increase of lipid peroxidation in plasma with concomitant decrease of antioxidant (AO) defense capacity in blood cells, which becomes more pronounced during aging of the patients. This work evaluated the potential age-related effect of chemotherapy with 5-fluorouracil, doxorubicin and cyclophosphamide (FAC) on the level of lipid hydroperoxides (LP), glutathione (GSH), AO enzyme activities of copper, zinc superoxide dismutase (CuZnSOD), catalase (CAT), glutathione peroxidase (GPx), and glutathione reductase (GR) in breast cancer patients. The level of CuZnSOD protein was assessed after the FAC therapy and radiotherapy of breast cancer. DESIGN AND METHODS AO parameters were measured in the blood of 58 breast cancer patients and 60 healthy age-matched healthy subjects by biochemical and Western blot analyses. RESULTS Increased oxidative stress (LP: p<0.05) and decreased AO enzyme activities (CuZnSOD: p<0.01, GPx: p<0.05, GR: p<0.01) and GSH level (p<0.01) in the blood of breast cancer patients in response to FAC chemotherapy seem not to be age-dependent. CuZnSOD enzyme expression decreased after the FAC chemotherapy (p<0.05), while it increased after the radiotherapy of breast cancer (p<0.05). CONCLUSION FAC chemotherapy and radiotherapy promote further oxidative shift, which potentiate already existing chronic oxidative stress linked to breast cancer. In these effects, impaired capacity for H(2)O(2) detoxification (CAT, GPX and GSH) seems to have major contribution.
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Affiliation(s)
- Jelena Kasapović
- Laboratory of Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia.
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Pejić S, Todorović A, Stojiljković V, Kasapović J, Pajović SB. Antioxidant enzymes and lipid peroxidation in endometrium of patients with polyps, myoma, hyperplasia and adenocarcinoma. Reprod Biol Endocrinol 2009; 7:149. [PMID: 20030853 PMCID: PMC2805669 DOI: 10.1186/1477-7827-7-149] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2009] [Accepted: 12/23/2009] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Oxidative stress and impaired antioxidant system have been proposed as a potential factors involved in the pathophysiology of diverse disease states, including carcinogenesis. In this study, we explored the lipid peroxidation levels and antioxidant enzyme activities in women diagnosed with different forms of gynecological diseases in order to evaluate the antioxidant status in endometrium of such patients. METHODS Endometrial tissues of gynecological patients with different diagnoses were collected and subjected to assays for superoxide dismutase, catalase, glutathione peroxidase, glutathione reductase and lipid hydroperoxides. RESULTS Superoxide dismutase activity was significantly decreased (50% in average) in hyperplastic and adenocarcinoma patients. Activities of both glutathione peroxidase and glutathione reductase were increased 60% and 100% on average, in hyperplastic patients, while in adenocarcinoma patients only glutathione reductase activity was elevated 100%. Catalase activity was significantly decreased in adenocarcinoma patients (47%). Lipid hydroperoxides level was negatively correlated to superoxide dismutase and catalase activities, and positively correlated to glutathione peroxidase and glutathione reductase activities. CONCLUSIONS This study provided the first comparison of antioxidant status and lipid peroxidation in endometrial tissues of patients with polyps, myoma, hyperplasia and adenocarcinoma. The results showed that patients with premalignant (hyperplastic) and malignant (adenocarcinoma) lesions had enhanced lipid peroxidation and altered uterine antioxidant enzyme activities than patients with benign uterine diseases, polyps and myoma, although the extent of disturbance varied with the diagnosis. Further investigation is needed to clarify the mechanisms responsible for the observed alterations and whether lipid hydroperoxide levels and antioxidant enzyme activities in uterus of gynecological patients might be used as additional parameter in clinical evaluation of gynecological disorders.
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Affiliation(s)
- Snežana Pejić
- Laboratory of Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, PO Box 522, 11001 Belgrade, Serbia
| | - Ana Todorović
- Laboratory of Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, PO Box 522, 11001 Belgrade, Serbia
| | - Vesna Stojiljković
- Laboratory of Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, PO Box 522, 11001 Belgrade, Serbia
| | - Jelena Kasapović
- Laboratory of Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, PO Box 522, 11001 Belgrade, Serbia
| | - Snežana B Pajović
- Laboratory of Molecular Biology and Endocrinology, Vinča Institute of Nuclear Sciences, PO Box 522, 11001 Belgrade, Serbia
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Pejić S, Todorović A, Stojiljković V, Cvetković D, Lučić N, Radojičić RM, Saičić ZS, Pajovic SB. Superoxide dismutase and lipid hydroperoxides in blood and endometrial tissue of patients with benign, hyperplastic and malignant endometrium. AN ACAD BRAS CIENC 2008; 80:515-22. [DOI: 10.1590/s0001-37652008000300011] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2007] [Accepted: 04/14/2008] [Indexed: 12/19/2022] Open
Abstract
Epidemiological and experimental data point to involvement of oxygen derived radicals in the pathogenesis of gynecological disorders, as well as in cancer development. The objective of the present study was to examine changes in activities and levels of copper/zinc superoxide dismutase (CuZnSOD) and lipid hydroperoxides (LOOH) in blood and endometrial tissue of patients diagnosed with uterine myoma, endometrial polypus, hyperplasia simplex, hyperplasia complex and adenocarcinoma endometrii. The results of our study have shown decreased SOD activities and unchanged SOD protein level in blood of all examined patients in comparison to healthy subjects. Decrease of both SOD activity and level was found in endometrium of patients with hyperplasia simplex, hyperplasia complex and adenocarcinoma in comparison to women with polypus or myoma. LOOH level was elevated in both tissues of patients with hyperplasiaor adenocarcinoma in comparison to healthy subjects or patients with benign diagnosis. Our findings suggest that the decrease in SOD activity and level, as well as the increase in LOOH level, in patients with gynecological disorders, render these patients more susceptible to oxidative damage caused by reactive oxygen species (ROS). An imbalance in ROS formation and SOD level may be important in the pathogenesis and/or perpetuation of tissue damage in gynecological patients. Since evidence suggests that SOD may be a therapy target for cancer treatment, our findings provide a basis for further research and options for clinical applications.
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Todorović A, Pejić S, Kasapović J, Stojiljković V, Pajović SB, Kanazir DT. Regional differences in antioxidative response of rat brain after cranial irradiation. ACTA ACUST UNITED AC 2006; 93:341-6. [PMID: 17191666 DOI: 10.1556/aphysiol.93.2006.4.10] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
In order to examine if differences in activity and inducibility of antioxidative enzymes in rat cerebral cortex and hippocampus are underlying their different sensitivity to radiation, we exposed four-day-old female Wistar rats to cranial radiation of 3 Gy of gamma-rays. After isolation of hippocampus and cortex 1 h or 24 h following exposure, activities of copper-zinc superoxide dismutase (CuZnSOD), manganese superoxide dismutase (MnSOD) and catalase (CAT) were measured and compared to unirradiated controls. MnSOD protein levels were determined by SDS-PAGE electrophoresis and Western blot analysis. Our results showed that CuZnSOD activity in hippocampus and cortex was significantly decreased 1 h and 24 h after irradiation with 3 Gy of gamma-rays. MnSOD activity in both brain regions was also decreased 1 h after irradiation. 24 h following exposure, manganese SOD activity in hippocampus almost achieved control values, while in cortex it significantly exceeded the activity of the relevant controls. CAT activity in hippocampus and cortex remained stable 1 h, as well as 24 h after irradiation with 3 Gy of gamma-rays. MnSOD protein level in hippocampus and cortex decreased 1 h after irradiation with 3 Gy of gamma-rays. 24 h after exposure, MnSOD protein level in cortex was similar to control values, while in hippocampus it was still significantly decreased. We have concluded that regional differences in MnSOD radioinducibility are regulated at the level of protein synthesis, and that they represent one of the main reasons for region-specific radiosensitivity of the brain.
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Affiliation(s)
- A Todorović
- Laboratory of Molecular Biology and Endocrinology, Vinda Institute of Nuclear Sciences, P.O. Box 522, 11000 Belgrade, Serbia
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Pejić S, Stojiljković V, Todorović A, Pajović S. CuZn-Superoxide Dismutase in Brain of Rats Exposed to Acute, Chronic or Combined Stress. BIOTECHNOL BIOTEC EQ 2006. [DOI: 10.1080/13102818.2006.10817316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Pajović SB, Pejić S, Stojiljković V, Gavrilović L, Dronjak S, Kanazir DT. Alterations in hippocampal antioxidant enzyme activities and sympatho-adrenomedullary system of rats in response to different stress models. Physiol Res 2005; 55:453-460. [PMID: 16238459 DOI: 10.33549/physiolres.930807] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
The study deals with activity of three antioxidant enzymes, copper, zinc-superoxide dismutase (CuZnSOD), manganese superoxide dismutase (MnSOD), catalase (CAT) in hippocampus of rats, following the exposure to single chronic (individual housing or forced swimming) and acute (immobilization or cold) stress, as well as to combined chronic/acute stress. In addition, plasma noradrenaline (NA) and adrenaline (A) concentrations were measured in the same stress conditions, because their autooxidation can add to the oxidative stress. We observed that i) long-term social isolation and repeated forced swimming had minor effects on plasma catecholamines, but in the long-term pretreated groups, acute stressors caused profound elevation NA and A levels, ii) chronic stressors activate antioxidant enzymes, iii) acute stressors decrease catalase activity, their effects on CuZnSOD appear to be stressor-dependent, whereas MnSOD is not affected by acute stressors, and iv) pre-exposure to chronic stress affects the antioxidant-related effects of acute stressors, but this effect depends to a large extent on the type of the chronic stressor. Based on both metabolic and neuroendocrine data, long-term isolation appears to be a robust psychological stressor and to induce a "priming" effect specifically on the CuZnSOD and CAT activity.
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Affiliation(s)
- S B Pajović
- Laboratory of Molecular Biology and Endocrinology, Vinca Institute of Nuclear Sciences, Belgrade, Serbia.
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Filipović D, Kasapović J, Pejić S, Nićiforović A, Pajović SB, Radojčić MB. Superoxide dismutase activity in various fractions of full bovine milk. Acta Alimentaria 2005. [DOI: 10.1556/aalim.34.2005.3.3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Kasapović J, Pajović SB, Pejić S, Martinović JV. Effects of estradiol benzoate and progesterone on superoxide dismutase activity in the thymus of rats. Physiol Res 2001; 50:97-103. [PMID: 11300233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023] Open
Abstract
The activity of mitochondrial superoxide dismutase (MnSOD) and cytosol superoxide dismutase (CuZnSOD) was measured in corresponding subcellular fractions prepared from the thymi of intact and chronically gonadectomized (GX) rats of both sexes, as well as of GX male and female rats injected subcutaneously with a single dose of 5 microg estradiol benzoate (EB) and/or 2 mg progesterone (P). Animals were sacrificed 2 h or 24 h following hormone treatment. In the females, the activity of MnSOD in the thymus was stable during the estrous cycle and did not change after ovariectomy. Treatment of GX females with estradiol benzoate resulted 2 h later in a significant elevation of MnSOD activity, whereas 24 h later the activity returned back to control values. On the other hand, treatment of GX females with progesterone had no effect on the MnSOD activity. However, combined hormone treatment, in which EB injection preceded progesterone injection by one hour, enhanced the effect on MnSOD activity similar to that of estradiol benzoate alone. The activity of CuZnSOD in cycling rats was increased in proestrus, whereas removal of the ovaries kept the values at low diestrus and estrus levels. Contrary to MnSOD, CuZnSOD activity did not change after EB treatment of GX females, while progesterone increased the enzyme activity at 2 h and 24 h after hormone treatment. However, combined EB+P treatment proved to be ineffective. In the males, neither MnSOD nor CuZnSOD activity was affected by the removal of testes or by progesterone treatment of GX animals. Only EB injection to GX rats significantly increased CuZnSOD activity 24 h later.
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Affiliation(s)
- J Kasapović
- Laboratory for Molecular Biology and Endocrinology, Vinca Institute for Nuclear Sciences, Belgrade, Yugoslavia
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Pajović SB, Joksić G, Kasapović J, Pejić S, Kanazir DT. Role of antioxidant enzymes in radiosensitivity of human blood cells. J Environ Pathol Toxicol Oncol 2001; 19:325-31. [PMID: 11213014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023] Open
Abstract
The marked variability in radiation response among individuals of the same age group prompted us to investigate the role of antioxidative enzyme activity. Micronuclei (MN) and enzyme assays were performed on blood samples of healthy male volunteers. The procedure consisted of micronucleus analysis and measurement of the superoxide dismutase (SOD) activity in harvested blood samples irradiated in vitro with 2 Gy gamma-rays and in unirradiated control samples for each individual. We found that the yield of radiation-induced micronuclei was in the range of 112 to 378 micronuclei per 1000 binucleated cells. The activity of cytosol superoxide dismutase (CuZnSOD) was reduced, whereas the activity of manganese superoxide dismutase (MnSOD) was markedly elevated in the blood samples harvested in lymphocyte cultures after irradiation. The analysis of our results showed that MnSOD plays the most important role in radiation-induced cellular damage. The results of this investigation showed that measurement of micronuclei and the activities of SOD in harvested human blood cells can serve as a rapid predictive assay of radiosensitivity in a clinical setting.
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Affiliation(s)
- S B Pajović
- Laboratory for Molecular Biology and Endocrinology, Vinca Institute of Nuclear Sciences, Belgrade, Yugoslavia
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Pejić S, Kasapović J, Pajović SB. Effects of olive oil on superoxide dismutase activity in the brain of newborn and young female rats. Physiol Res 2000; 48:297-301. [PMID: 10638681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023] Open
Abstract
Changes in the activity of brain antioxidant superoxide dismutases (SOD) were followed in newborn and young female rats 8, 15, 30, 45, 60 and 75 days after birth treated with olive oil. In newborn rats, the content of brain cytosol SOD (CuZnSOD) and mitochondrial SOD (MnSOD) decreased after treatment with olive oil. However, in the brain of rats aged 8 days this effect was lost. The suppressive effect of olive oil on these enzymes reappeared again in 15-day-old rats. In rats aged one month, only the activity of CuZnSOD was reduced after olive oil treatment. In the brain of rats aged 45, 60 and 75 days, neither MnSOD nor CuZnSOD were affected by olive oil. The different effects of olive oil on the brain SOD, during ontogeny suggest that profound changes in the susceptibility of nervous tissue antioxidant enzymes to olive oil take place during sexual maturation.
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Affiliation(s)
- S Pejić
- Laboratory for Molecular Biology and Endocrinology, Vinca Institute for Nuclear Sciences, Belgrade, Yugoslavia
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Pejić S. [Prof. Dr Vladimir Stanojević]. SRP ARK CELOK LEK 1966; 94:833-5. [PMID: 4872949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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Pejić S. [Contribution to the symptomatic treatment of stubborn hiccup]. Med Glas 1966; 20:249-52. [PMID: 5986857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Pejić S. [Transoral block of the cervico-endocranial sympathetic system in otorhinolaryngology]. SRP ARK CELOK LEK 1965; 93:719-30. [PMID: 5884873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
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Pejić S. Problem of Tonsillectomy. ORL J Otorhinolaryngol Relat Spec 1952. [DOI: 10.1159/000273746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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