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Blaha V, Blaha M, Solichová D, Krčmová LK, Lánská M, Havel E, Vyroubal P, Zadák Z, Žák P, Sobotka L. Antioxidant defense system in familial hypercholesterolemia and the effects of lipoprotein apheresis. ATHEROSCLEROSIS SUPP 2017; 30:159-165. [PMID: 29096832 DOI: 10.1016/j.atherosclerosissup.2017.05.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Oxidative stress is thought to play an important role in the pathogenesis of disorders associated with atherosclerosis. Alpha-tocopherol is considered to be an effective lipophilic antioxidant, which protects lipid membranes against peroxidation and thus prevents cell damage by reaction with free radicals. However, measurement of alpha-tocopherol concentration in serum does not reflect the content of α-tocopherol in membranes whereas erythrocyte alpha-tocopherol may be good indicator of antioxidative status. Therefore a simple isocratic reversed phase HPLC method has been developed and validated for the determination of alpha-tocopherol in human erythrocytes in a clinical setting. The content of alpha-tocopherol in human erythrocyte membrane and lipoperoxidation were studied in patients with severe hypercholesterolemia treated by lipoprotein apheresis. The group of hypercholesterolemic patients (n = 14) treated by lipoprotein apheresis was compared to healthy adult normolipidemic controls. After lipoprotein apheresis, the content of in membrane alpha-tocopherol did not change significantly despite decreased tocopherol in serum and lipoprotein fractions. We observed significantly decreased lipoperoxidation as revealed by serum TBARS, representing end products of lipid peroxidation, which increased from third day afterwards and remained significantly higher in comparison to controls until the next LDL-apheresis. We conclude that aggressive lipid lowering procedure with lipoprotein apheresis was associated with favorable transient decrease of lipoperoxidation. Simultaneously the cell membrane bound antioxidative defense mechanisms as reflected by the content of alpha-tocopherol in human erythrocyte membrane where not depressed in spite of its decreased plasma lipid carrier. Another variables involved remain to be investigated.
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Affiliation(s)
- V Blaha
- 3rd Department of Internal Medicine, Metabolism and Gerontology, University Hospital Hradec Králové and Medical Faculty Charles University in Hradec Králové, Czech Republic.
| | - M Blaha
- 2nd Department of Internal Medicine, Hematology, University Hospital Hradec Králové and Medical Faculty Charles University in Hradec Králové, Czech Republic
| | - D Solichová
- 3rd Department of Internal Medicine, Metabolism and Gerontology, University Hospital Hradec Králové and Medical Faculty Charles University in Hradec Králové, Czech Republic
| | - L Kujovská Krčmová
- 3rd Department of Internal Medicine, Metabolism and Gerontology, University Hospital Hradec Králové and Medical Faculty Charles University in Hradec Králové, Czech Republic
| | - M Lánská
- 2nd Department of Internal Medicine, Hematology, University Hospital Hradec Králové and Medical Faculty Charles University in Hradec Králové, Czech Republic
| | - E Havel
- 3rd Department of Internal Medicine, Metabolism and Gerontology, University Hospital Hradec Králové and Medical Faculty Charles University in Hradec Králové, Czech Republic
| | - P Vyroubal
- 3rd Department of Internal Medicine, Metabolism and Gerontology, University Hospital Hradec Králové and Medical Faculty Charles University in Hradec Králové, Czech Republic
| | - Z Zadák
- 3rd Department of Internal Medicine, Metabolism and Gerontology, University Hospital Hradec Králové and Medical Faculty Charles University in Hradec Králové, Czech Republic
| | - P Žák
- 2nd Department of Internal Medicine, Hematology, University Hospital Hradec Králové and Medical Faculty Charles University in Hradec Králové, Czech Republic
| | - L Sobotka
- 3rd Department of Internal Medicine, Metabolism and Gerontology, University Hospital Hradec Králové and Medical Faculty Charles University in Hradec Králové, Czech Republic
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Aufartova J, Blaha M, Kasalova E, Honegrova B, Cervinkova B, Kujovska Krcmova L, Plisek J, Lanska M, Sobotka L, Solichova D. Blood levels of antioxidants during age-related macular degeneration treatment by rheohaemapheresis. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2015; 159:400-6. [PMID: 26077006 DOI: 10.5507/bp.2015.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 05/15/2015] [Indexed: 11/23/2022] Open
Abstract
AIMS Rheohaemapheresis treatment influences rheological markers and most likely improves metabolism in affected retinal areas, resulting not only in absorption of soft drusen but also reduction or complete disappearance of drusenoid retinal pigment epithelium detachments. However, the character of the treatment process has raised suspicion that there is a decrease not only in cholesterol but also in antioxidants, such as vitamin E and vitamin A. METHODS Twenty-three patients with the progressive dry form of age-related macular degeneration were each treated with 8 procedures of rheohaemapheresis. We measured levels of vitamin E (α-tocopherol), the vitamin E/cholesterol ratio in serum and lipoproteins (VLDL, LDL, HDL). Vitamin E in erythrocyte membrane and serum vitamin A (retinol) were also measured. These parameters were determined before and after rheohaemapheresis. Erythrocyte superoxide dismutase, erythrocyte glutathione peroxidase and serum malondialdehyde were analysed as markers of antioxidant activity and lipid peroxidation, respectively. RESULTS In serum, the VLDL and LDL fraction ratios of vitamin E/cholesterol increased significantly. Additionally, the HDL fraction ratio showed an increase but this was not statistically significant. The patients showed no clinical signs of vitamin E deficiency, and their serum concentrations of vitamin E did not differ from normal values. The results show that rheohaemapheresis in addition to causing a significant reduction in atherogenic LDL cholesterol, may have favourable additive anti-atherogenic effects due to a relative increase in the content of vitamin E in the lipoprotein fractions.
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Affiliation(s)
- Jana Aufartova
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Kralove, Charles University in Prague, Hradec Kralove
| | - Milan Blaha
- 4th Department of Internal Medicine - Hematology, Faculty of Medicine in Hradec Kralove, Charles University in Prague and University Hospital Hradec Kralove
| | - Eva Kasalova
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Kralove, Charles University in Prague, Hradec Kralove
| | - Barbora Honegrova
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Kralove, Charles University in Prague, Hradec Kralove
| | - Barbora Cervinkova
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Kralove, Charles University in Prague, Hradec Kralove
| | - Lenka Kujovska Krcmova
- 3rd Department of Internal Medicine - Metabolic Care and Gerontology, Faculty of Medicine in Hradec Kralove, Charles University in Prague and University Hospital Hradec Kralove, Czech Republic.,Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Kralove, Charles University in Prague, Hradec Kralove
| | - Jiri Plisek
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Kralove, Charles University in Prague, Hradec Kralove
| | - Miriam Lanska
- 4th Department of Internal Medicine - Hematology, Faculty of Medicine in Hradec Kralove, Charles University in Prague and University Hospital Hradec Kralove
| | - Lubos Sobotka
- 3rd Department of Internal Medicine - Metabolic Care and Gerontology, Faculty of Medicine in Hradec Kralove, Charles University in Prague and University Hospital Hradec Kralove, Czech Republic
| | - Dagmar Solichova
- 3rd Department of Internal Medicine - Metabolic Care and Gerontology, Faculty of Medicine in Hradec Kralove, Charles University in Prague and University Hospital Hradec Kralove, Czech Republic
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Plíšek J, Pospíchalová N, Khalikova M, Aufartová J, Solichová D, Krčmová LK, Solich P. Combination of ultracentrifugation and solid-phase extraction with subsequent chromatographic analysis of α-tocopherol in erythrocyte membranes. J Sep Sci 2015; 38:634-40. [DOI: 10.1002/jssc.201401036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Revised: 11/24/2014] [Accepted: 11/24/2014] [Indexed: 11/10/2022]
Affiliation(s)
- Jiří Plíšek
- Department of Analytical Chemistry; Faculty of Pharmacy; Charles University; Hradec Králové Czech Republic
- 3rd Internal Gerontometabolic Clinic; University Hospital; Hradec Králové Czech Republic
| | - Naďa Pospíchalová
- Department of Analytical Chemistry; Faculty of Pharmacy; Charles University; Hradec Králové Czech Republic
| | - Maria Khalikova
- Department of Analytical Chemistry; Faculty of Pharmacy; Charles University; Hradec Králové Czech Republic
| | - Jana Aufartová
- Department of Analytical Chemistry; Faculty of Pharmacy; Charles University; Hradec Králové Czech Republic
- 3rd Internal Gerontometabolic Clinic; University Hospital; Hradec Králové Czech Republic
| | - Dagmar Solichová
- 3rd Internal Gerontometabolic Clinic; University Hospital; Hradec Králové Czech Republic
| | - Lenka Kujovská Krčmová
- Department of Analytical Chemistry; Faculty of Pharmacy; Charles University; Hradec Králové Czech Republic
- 3rd Internal Gerontometabolic Clinic; University Hospital; Hradec Králové Czech Republic
| | - Petr Solich
- Department of Analytical Chemistry; Faculty of Pharmacy; Charles University; Hradec Králové Czech Republic
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Cimadevilla HM, Hevia D, Miar A, Mayo JC, Lombo F, Sainz RM. Development and validation of a single HPLC method for determination ofα-tocopherol in cell culture and in human or mouse biological samples. Biomed Chromatogr 2014; 29:843-52. [DOI: 10.1002/bmc.3362] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 09/03/2014] [Accepted: 09/15/2014] [Indexed: 12/26/2022]
Affiliation(s)
- Henar M. Cimadevilla
- Departamento de Morfología y Biología Celular, Facultad de Medicina y Ciencias de la Salud; University of Oviedo; Oviedo Spain
| | - David Hevia
- Departamento de Morfología y Biología Celular, Facultad de Medicina y Ciencias de la Salud; University of Oviedo; Oviedo Spain
- Instituto Universitario Oncológico del Principado de Asturias; Oviedo Spain
| | - Ana Miar
- Departamento de Morfología y Biología Celular, Facultad de Medicina y Ciencias de la Salud; University of Oviedo; Oviedo Spain
- Instituto Universitario Oncológico del Principado de Asturias; Oviedo Spain
| | - Juan C. Mayo
- Departamento de Morfología y Biología Celular, Facultad de Medicina y Ciencias de la Salud; University of Oviedo; Oviedo Spain
- Instituto Universitario Oncológico del Principado de Asturias; Oviedo Spain
| | - Felipe Lombo
- Instituto Universitario Oncológico del Principado de Asturias; Oviedo Spain
- Departamento de Biología Funcional, Facultad de Medicina y Ciencias de la Salud; University of Oviedo; Oviedo Spain
| | - Rosa M. Sainz
- Departamento de Morfología y Biología Celular, Facultad de Medicina y Ciencias de la Salud; University of Oviedo; Oviedo Spain
- Instituto Universitario Oncológico del Principado de Asturias; Oviedo Spain
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MELICHAR B, PLÍŠEK J, HYŠPLER R, KALÁBOVÁ H, KAŠPAROVÁ M, KRCMOVÁ L, ŠTUDENTOVÁ H, SOLICHOVÁ D. Erythrocyte Alpha-Tocopherol in Breast Cancer Patients Treated with Letrozol. J Nutr Sci Vitaminol (Tokyo) 2010. [DOI: 10.3177/jnsv.56.98] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Ren YR, Nishida Y, Yoshimi K, Yasuda T, Jishage KI, Uchihara T, Yokota T, Mizuno Y, Mochizuki H. Genetic vitamin E deficiency does not affect MPTP susceptibility in the mouse brain. J Neurochem 2006; 98:1810-6. [PMID: 16787402 DOI: 10.1111/j.1471-4159.2006.03994.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Oxidative stress is involved in the degeneration of the nigrostriatal dopaminergic system in Parkinson's disease (PD). Vitamin E (alpha-tocopherol) is a potent antioxidant in the cell membrane that can trap free radicals and prohibit lipid peroxidation. The retention and secretion of vitamin E are regulated by alpha-tocopherol transfer protein (TTP) in the brain and liver. Dysfunction of TTP results in systemic deficiency of vitamin E in humans and mice, and increased oxidative stress in mouse brain. In this study, we investigated the effect of vitamin E deficiency in PD development by generating an 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) mouse model of PD using TTP knockout (TTP-/-) mice. Vitamin E concentration in the brains of TTP+/- mice was half that in TTP+/+ mice, and in TTP-/- mice, was undetectable. MPTP treatment tended to decrease striatal dopamine, but the effect was comparable and not significant in any of the three genotypes. Furthermore, the extent of loss of dopaminergic cell bodies in the substantia nigra did not differ among the groups. One the other hand, oral administration of vitamin E resulted in the partial protection of striatal dopaminergic terminals against MPTP toxicity. Our results suggest that vitamin E does not play a major protective role in MPTP-induced nigrostriatal dopaminergic neurodegeneration in the brain.
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Affiliation(s)
- Yong-Ri Ren
- Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan
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Otsu K, Sato K, Ikeda Y, Imai H, Nakagawa Y, Ohba Y, Fujii J. An abortive apoptotic pathway induced by singlet oxygen is due to the suppression of caspase activation. Biochem J 2005; 389:197-206. [PMID: 15796713 PMCID: PMC1184552 DOI: 10.1042/bj20042067] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Singlet oxygen causes the cytotoxic process of tumour cells in photodynamic therapy. The mechanism by which singlet oxygen damages cells is, however, not fully understood. To address this issue, we synthesized and used two types of endoperoxides, MNPE (1-methylnaphthalene-4-propionate endoperoxide) and NDPE (naphthalene-1,4-dipropionate endoperoxide), that generate defined amounts of singlet oxygen at 37 degrees C with similar half lives. MNPE, which is more hydrophobic than NDPE, induced the release of cytochrome c from mitochondria into the cytosol and exhibited cytotoxicity, but NDPE did not. RBL cells, a rat basophil leukaemia-derived line, that overexpress phospholipid hydroperoxide glutathione peroxidase in mitochondria were found to be highly resistant to the cytotoxic effect of MNPE. MNPE treatment induced much less DNA ladder formation and nuclear fragmentation in cells than etoposide treatment, even though these treatments induced a similar extent of cellular damage. Singlet oxygen inhibited caspase 9 and 3 activities directly and also suppressed the activation of the caspase cascade. Collectively, these data suggest that singlet oxygen triggers an apoptotic pathway by releasing cytochrome c from mitochondria via the peroxidation of mitochondrial components and results in cell death that is different from typical apoptosis, because of the abortive apoptotic pathway caused by impaired caspase activation.
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Affiliation(s)
- Kaoru Otsu
- *Department of Biomolecular Function, Graduate School of Medical Science, Yamagata University, 2-2-2 Iidanishi, Yamagata 990-9585, Japan
| | - Kazuaki Sato
- †Department of Chemical Engineering, Faculty of Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Japan
| | - Yoshitaka Ikeda
- ‡Division of Molecular Cell Biology, Department of Biomolecular Sciences, Saga University Faculty of Medicine, 5-1-1 Nabeshima, Saga 849-8501, Japan
| | - Hirotaka Imai
- §School of Pharmaceutical Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Yasuhito Nakagawa
- §School of Pharmaceutical Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Yoshihiro Ohba
- †Department of Chemical Engineering, Faculty of Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Japan
| | - Junichi Fujii
- *Department of Biomolecular Function, Graduate School of Medical Science, Yamagata University, 2-2-2 Iidanishi, Yamagata 990-9585, Japan
- To whom correspondence should be addressed (email )
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Musil F, Zadák Z, Solichová D, Hyspler R, Kaska M, Sobotka L, Manák J. Dynamics of antioxidants in patients with acute pancreatitis and in patients operated for colorectal cancer: a clinical study. Nutrition 2005; 21:118-24. [PMID: 15723737 DOI: 10.1016/j.nut.2004.07.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2003] [Revised: 04/01/2003] [Accepted: 07/26/2004] [Indexed: 12/22/2022]
Abstract
OBJECTIVES This clinical study compared the dynamics of antioxidants levels in patients with acute pancreatitis (AP), patients operated for colorectal cancer (CA), and healthy control subjects. METHODS This prospective descriptive study enrolled 21 AP and 14 CA patients and 17 healthy controls. Blood was collected from AP patients on days 1, 5, and 9 and from CA patients before surgery and on days 1, 5, and 9 after surgery. We measured concentrations of selenium in plasma, red blood cells (RBCs), and big-toe nails, vitamin A (retinol) in serum, alpha-tocopherol in serum and in RBCs, vitamin C in serum, concentration ratio of 9,11- and 10,12-octadecanoic acids to linoleic acid in RBC membrane, activity of superoxide dismutase, and glutathione peroxidase in RBCs. RESULTS Plasma concentrations of selenium, vitamin A, and vitamin C were significantly lower in AP and CA patients than in healthy controls over the monitored period (P < 0.05). Patients with severe AP had a significantly lower concentration of selenium in RBCs than did healthy controls and CA patients (P < 0.05). The concentration of selenium in toe nails of AP patients was significantly lower than that in CA patients and healthy controls (P < 0.001). The marker of increased reactive oxygen species activity the ratio of 9,11- and 10,12-octadecanoic acids to linoleic acid in RBCs was significantly higher in AP and CA patients than in healthy controls (P < 0.05). CONCLUSIONS Low levels of measured antioxidants and increased activity of reactive oxygen species occurred during the course of AP. These findings applied in particular to patients who had severe AP. Levels of measured antioxidants seemed to be similar in AP and CA patients except for lower levels of selenium in toe nails in AP patients and lower selenium concentrations in RBCs in patients with severe AP.
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Affiliation(s)
- Frantisek Musil
- Department of Metabolic Care and Gerontology, Charles University and University Hospital, Hradec Králové, Czech Republic.
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