51
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Mandic AI, Đilas SM, Ćetković GS, Čanadanović-Brunet JM, Tumbas VT. Polyphenolic Composition and Antioxidant Activities of Grape Seed Extract. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2008. [DOI: 10.1080/10942910701584260] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | - Sonja M. Đilas
- a University of Novi Sad, Faculty of Technology , Novi Sad, Serbia
| | | | | | - Vesna T. Tumbas
- a University of Novi Sad, Faculty of Technology , Novi Sad, Serbia
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52
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Youwei Z, Jinlian Z, Yonghong P. A comparative study on the free radical scavenging activities of some fresh flowers in southern China. Lebensm Wiss Technol 2008. [DOI: 10.1016/j.lwt.2007.10.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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53
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Rieger G, Müller M, Guttenberger H, Bucar F. Influence of altitudinal variation on the content of phenolic compounds in wild populations of Calluna vulgaris, Sambucus nigra, and Vaccinium myrtillus. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2008; 56:9080-9086. [PMID: 18788745 DOI: 10.1021/jf801104e] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
This study deals with the effect of altitudinal variation on the content of phenolic compounds in three traditional herbal plants, which are also consumed as food in Central Europe. Herbs of Calluna vulgaris (L.) HULL, flowers and fruits of Sambucus nigra L., and berries of Vaccinium myrtillus L. collected in the Naturpark Solktaler (Austria) were extracted using accelerated solvent extraction (ASE). Identification and quantification of the constituents in the polar extracts (methanol 80%, v/v) were achieved by means of RP-HPLC-PDA and/or LC-PDA-MS analysis with external standards. 3,5- O-Dicaffeoylquinic acid was identified in flowers of S. nigra for the first time. Rising concentrations of flavonoids and especially flavonol-3- O-glycosides with adjacent hydroxyl groups in ring B in C. vulgaris and S. nigra with increasing altitude were observed. Anthocyanins from the berries of both S. nigra and V. myrtillus occurred in decreasing amounts with rising altitude. C. vulgaris showed the best radical scavenging capacity based on the DPPH assay.
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Affiliation(s)
- Gudrun Rieger
- Institute of Pharmaceutical Sciences, Department of Pharmacognosy, University of Graz, Universitätsplatz 4/1, A-8010 Graz, Austria
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54
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Methodological aspects about in vitro evaluation of antioxidant properties. Anal Chim Acta 2008; 613:1-19. [DOI: 10.1016/j.aca.2008.02.047] [Citation(s) in RCA: 451] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2007] [Revised: 02/18/2008] [Accepted: 02/21/2008] [Indexed: 01/17/2023]
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55
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Wang CH, Cheng XM, He YQ, White KN, Bligh SWA, Branford-White CJ, Wang ZT. Pharmacokinetic behavior of gentiopicroside from decoction of radix gentianae, gentiana macrophylla after oral administration in rats: A pharmacokinetic comaprison with gentiopicroside after oral and intravenous administration alone. Arch Pharm Res 2007; 30:1149-54. [DOI: 10.1007/bf02980251] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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56
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Ćetković GS, Mandić AI, Čanadanović‐Brunet JM, Djilas SM, Tumbas VT. HPLC Screening of Phenolic Compounds in Winter Savory (Satureja montana L.) Extracts. J LIQ CHROMATOGR R T 2007. [DOI: 10.1080/10826070601063559] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Gordana S. Ćetković
- a Organic Chemistry Department , Faculty of Technology , Novi Sad, Serbia & Montenegro
| | - Anamarija I. Mandić
- a Organic Chemistry Department , Faculty of Technology , Novi Sad, Serbia & Montenegro
| | | | - Sonja M. Djilas
- a Organic Chemistry Department , Faculty of Technology , Novi Sad, Serbia & Montenegro
| | - Vesna T. Tumbas
- a Organic Chemistry Department , Faculty of Technology , Novi Sad, Serbia & Montenegro
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57
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Rocha FD, Soares AR, Houghton PJ, Pereira RC, Kaplan MAC, Teixeira VL. Potential cytotoxic activity of some Brazilian seaweeds on human melanoma cells. Phytother Res 2007; 21:170-5. [PMID: 17133653 DOI: 10.1002/ptr.2038] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
In vitro screening of the crude extracts of some Brazilian coastal seaweeds for cytotoxic activity against a cultured human melanoma cancer cell line using the sulphorhodamine B assay was performed. The crude dichloromethane:chloroform extract of Stypopodium zonale showed good cytotoxic activity against the C32 cell line. The crude acetone extract and aqueous phase of Lobophora variegata did not show any activity, but semi-purified fractions XAD LOB I and II could inhibit the growth of melanoma cells. The crude acetone extract of Caulerpa racemosa showed some cytotoxicity, but caulerpin isolated from this extract did not show any such activity. The crude acetone extract of Spatoglossum schroederi was not able to inhibit the growth of C32 melanoma cells.
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Affiliation(s)
- Fabíola Dutra Rocha
- Programa de Pós-graduação de Produtos Naturais, Núcleo de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, RJ, 21941-590, Brazil.
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58
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Matsukawa K, Ogata M, Hikage T, Minami H, Shimotai Y, Saitoh Y, Yamashita T, Ouchi A, Tsutsumi R, Fujioka T, Tsutsumi KI. Antiproliferative activity of root extract from gentian plant (Gentiana triflora) on cultured and implanted tumor cells. Biosci Biotechnol Biochem 2006; 70:1046-8. [PMID: 16636481 DOI: 10.1271/bbb.70.1046] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We describe a novel pharmacological activity of the gentian root, an ingredient of Chinese medicines. Root extract from Gentiana triflora triggered cell death of human Daudi cells in culture. In addition, daily administration of the extract to mice inhibited growth of implanted solid tumors. Extract treatment of cultured cells resulted in the appearance of shranken, fragmented, or condensed cell and nuclear morphologies, and in chromosomal DNA degradation. But, the extract-treated cells did not show DNA fragmentation, which exhibits a nucleosome ladder, suggesting that extract-triggered cell death is not mediated through a typical apoptotic pathway.
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59
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Canadanovic-Brunet JM, Djilas SM, Cetkovic GS, Tumbas VT, Mandic AI, Canadanovic VM. Antioxidant activities of different Teucrium montanum L. Extracts. Int J Food Sci Technol 2006. [DOI: 10.1111/j.1365-2621.2006.01133.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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60
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Kim YC, Jun M, Jeong WS, Chung SK. Antioxidant Properties of Flavone C-Glycosides from Atractylodes japonica Leaves in Human Low-density Lipoprotein Oxidation. J Food Sci 2006. [DOI: 10.1111/j.1365-2621.2005.tb08331.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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61
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62
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Calliste CA, Trouillas P, Allais DP, Duroux JL. Castanea sativa Mill. leaves as new sources of natural antioxidant: an electronic spin resonance study. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2005; 53:282-288. [PMID: 15656662 DOI: 10.1021/jf049341c] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The antioxidant potential of Castanea sativa Mill. leaf (sweet chestnut) was explored as a new source of active extracts. The capacity of the different fractions issued from aqueous, methanol, and ethyl acetate extracts to inhibit the stable free radical 2,2-diphenyl-1-pycryl-hydrazyl, superoxide anion, and hydroxyl radical was measured by electronic spin resonance. Their scavenging potential was analyzed versus their amount of phenolic compounds. Among the active fractions, the most effective one was A6, an ethyl acetate fraction, which contained a high level of total phenolic compounds (29.1 g/100 g). Thus, a different extraction procedure was performed to concentrate the active compounds of A6 in the new C. sativa leaf extract (CSLE). Compared to reference antioxidants (quercetin and vitamin E) and standard extracts (Pycnogenol, from French Pinus maritima bark, and grape marc extract), it was observed that A6 and CSLE have high antioxidant potentials, equivalent to at least those of reference compounds.
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Affiliation(s)
- Claude-Alain Calliste
- Laboratoire de Biophysique and Laboratoire de Pharmacognosie, Faculté de Pharmacie, UPRES EA 1085, Biomolécules et Cibles Cellulaires Tumorales, 2 rue du Dr. Marcland, 87025 Limoges, France
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63
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64
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Ahn CB, Jeon YJ, Kang DS, Shin TS, Jung BM. Free radical scavenging activity of enzymatic extracts from a brown seaweed Scytosiphon lomentaria by electron spin resonance spectrometry. Food Res Int 2004. [DOI: 10.1016/j.foodres.2003.12.002] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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65
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PARK PYOJAM, SHAHIDI FEREIDOON, JEON YOUJIN. ANTIOXIDANT ACTIVITIES OF ENZYMATIC EXTRACTS FROM AN EDIBLE SEAWEED SARGASSUM HORNERI USING ESR SPECTROMETRY. ACTA ACUST UNITED AC 2004. [DOI: 10.1111/j.1745-4522.2004.tb00257.x] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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66
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Marfak A, Trouillas P, Allais DP, Calliste CA, Cook-Moreau J, Duroux JL. Mechanisms of transformation of the antioxidant kaempferol into depsides. Gamma-radiolysis study in methanol and ethanol. Radiat Res 2003; 160:355-65. [PMID: 12926994 DOI: 10.1667/rr3024] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
In this study, we irradiated the antioxidant kaempferol in ethanol and methanol solutions with gamma rays at doses ranging from 0.2-20 kGy. NMR and ES-MS spectroscopy were used to identify radiolysis products. Two depsides, [2-[(4'-hydroxybenzoyl)oxy]-4,6-dihydroxyphenyl](oxo) methyl acetate and [2-[(4'-hydroxybenzoyl)oxy]-4,6-dihydroxyphenyl](oxo) ethyl acetate, were the major compounds of kaempferol degradation in methanol and in ethanol, respectively. Other products formed in low concentrations were identified as [4-hydroxyphenyl](oxo) methyl acetate, [4-hydroxyphenyl](oxo) ethyl acetate, and depside [2-[(4'-hydroxybenzoyl)oxy]-4,6-dihydroxyphenyl](oxo) acetic acid. The formation of the latter was observed in both solvents. We propose degradation mechanisms that suggest that (.)CH(2)OH and CH(3)(.)CHOH, produced by solvent radiolysis, react with the 3-OH kaempferol group because of its high H-donor capacity. pi-Electron delocalization in the flavonoxy formed after the first H-transfer leads to C-ring opening and consequently to the formation of depsides. G calculation of the degradation products and of (.)CH(2)OH and CH(3)(.)CHOH radicals confirmed the proposed mechanism of kaempferol radiolysis. The rate constants for the reaction between kaempferol and these free radicals were also calculated. Formation of depside has also been observed in many studies of the oxidation of flavonoids; those studying human metabolism have suggested similar redox transformation of flavonols. The antioxidant activities of radiolysis products were evaluated and compared to those of kaempferol.
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Affiliation(s)
- A Marfak
- UPRES EA 1085, Biomolécules et Cibles Cellulaires Tumorales Laboratoire de Biophysique, Faculté de Pharmacie, 87025 Limoges Cedex, France
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67
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Park PJ, Je JY, Kim SK. Free radical scavenging activity of chitooligosaccharides by electron spin resonance spectrometry. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2003; 51:4624-4627. [PMID: 14705887 DOI: 10.1021/jf034039+] [Citation(s) in RCA: 116] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The radical scavenging effects of chitooligosaccharides (COSs) on hydroxyl radical, superoxide radical, alkyl radical, and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical were investigated using a spin-trapping electron spin resonance (ESR) method and compared with the ESR signal intensity. COSs exhibited strong scavenging activity on hydroxyl radical and superoxide radical and weak scavenging activity on alkyl radical and DPPH radical. The radical scavenging activity of COSs increased with increment of concentration, and it was also dependent on molecular weight. These results suggest that the scavenging activity of COSs is dependent on their molecular weights and tested radicals.
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Affiliation(s)
- Pyo-Jam Park
- Department of Chemistry, Pukyong National University, Busan 608-737, Korea
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68
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Trouillas P, Calliste CA, Allais DP, Simon A, Marfak A, Delage C, Duroux JL. Antioxidant, anti-inflammatory and antiproliferative properties of sixteen water plant extracts used in the Limousin countryside as herbal teas. Food Chem 2003. [DOI: 10.1016/s0308-8146(02)00282-0] [Citation(s) in RCA: 149] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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69
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Marfak A, Trouillas P, Allais DP, Champavier Y, Calliste CA, Duroux JL. Radiolysis of kaempferol in water/methanol mixtures. Evaluation of antioxidant activity of kaempferol and products formed. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2003; 51:1270-1277. [PMID: 12590467 DOI: 10.1021/jf020836g] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Oxidative reaction between hydroxymethyl radical ((*)CH(2)OH) and kaempferol, in methanol and methanol/water mixtures, was studied by gamma-radiolysis using a (60)Co source. Radiolysis was performed with concentrations and doses ranging from 5 x 10(-)(5) M to 5 x 10(-)(3) M and from 0.5 kGy to 14 kGy, respectively. Kaempferol degradation was followed by HPLC. Results showed that (*)CH(2)OH reacts with kaempferol at the 3-OH group and produces two depsides (K1 and K2) and other products including K3. K1, K2, and K3 were identified by NMR, LC-MS, and HRMS. The kaempferol degradation pathway leading to the K1, K2, and K3 formation is proposed. It was observed that the more water concentration in the irradiation medium increases, the more K2 concentration increases. Comprehension of food preservation is not clear because many phenomena occurring during irradiation are not established. Radiolysis of kaempferol in water/methanol mixtures helps to elucidate the phenomenon and it is possible that during the treatment of nutriments by gamma-irradiation, a series of products such as depside K2 could be formed. Antioxidant properties of kaempferol radiolysis products were evaluated according to their capacity to decrease the EPR DPPH (1,1-diphenyl-2-picrylhydrazil) signal and to inhibit superoxide radicals formed by the enzyme reaction "xanthine + xanthine oxidase".
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Affiliation(s)
- Abdelghafour Marfak
- UPRES EA 1085, Biomolécules et Cibles Cellulaires Tumorales, Faculté de Pharmacie, 2 rue du Dr. Marcland, 87025 Limoges Cedex, France
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70
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Marfak A, Trouillas P, Allais DP, Calliste CA, Duroux JL. Redox reactions obtained by gamma irradiation of quercetin methanol solution are similar to in vivo metabolism. Radiat Res 2003; 159:218-27. [PMID: 12537527 DOI: 10.1667/0033-7587(2003)159[0218:rrobio]2.0.co;2] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The flavonol quercetin is one of the most well-known antioxidant flavonoids. Its antioxidant potential has been studied extensively during the last 10 years, but little is known about the metabolites formed in vivo that lead to the formation of depside and small molecules such as benzoic acids. In this study, gamma irradiation of a quercetin methanol solution was used as a model of certain oxidative reactions that occur in vivo. Qercetin at concentrations ranging from 5 x 10(-5) M to 5 x 10(-3) M, was irradiated with gamma rays at doses of 2-14 kGy. Quercetin degradation was evaluated by HPLC analysis. The major radiolytic metabolite was identified as a depside by NMR and LC-MS. Formation of 3,4-dihydroxybenzoic acid was also observed. The presence of CH3O. formed during methanol radiolysis is invoked to explain depside formation. Transformation of the 8-methoxy substituted depside (Q1) to the 8-hydroxyl substituted depside (Q2) is discussed. The antioxidant properties of quercetin metabolites are evaluated according to their capacity to decrease the EPR DPPH signal and to inhibit superoxide radical formed by the enzymatic reaction (xanthine + xanthine oxidase). For both assays, the IC50 of Q2 is twice as high as that of quercetin.
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Affiliation(s)
- A Marfak
- UPRES EA 1085, "Biomolécules et Cibles Cellulaires Tumorales" Laboratoire de Biophysique, Faculté de Pharmacie, Cedex, France
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71
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Woźniak A, Woźniak B, Drewa G, Drewa T. Lipid peroxidation and antioxidant capacity in selected tissues of healthy black C57BL/6J mice and B16 melanoma-bearing mice. Melanoma Res 2003; 13:19-22. [PMID: 12569280 DOI: 10.1097/00008390-200302000-00004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
During the process of melanogenesis free radicals are generated. The aim of this study was to investigate the effects of melanogenesis in B16 melanoma on lipid peroxidation and antioxidant capacity in selected tissues of black C57BL/6J mice. The study was conducted on 24 mice: 12 healthy controls and 12 with a transplanted B16 melanoma. Two weeks after the melanoma transplant, when the average weight of the tumours was approximately 2.0 g, blood samples were taken from the orbital venous plexus. The mice were killed by dislocation of the spinal cord, and the brain, liver and lungs were removed for analysis. The level of thiobarbituric acid-reactive substances (TBARS) and of 1,1-diphenyl-2-picrylhydrazyl (DPPH) reactive substances were determined in full liver, lung and brain homogenates and in serum. The activity of superoxide dismutase (SOD) was determined only in homogenized tissue. The concentration of TBARS and the SOD activity were statistically significantly higher in all the studied tissues from mice with B16 melanoma than in tissues from healthy mice. The antioxidant capacity, however, was lower in the tissues of melanoma-bearing mice. The results obtained demonstrate an increase in oxidative stress in the tissues of mice bearing a transplanted B16 melanoma.
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Affiliation(s)
- A Woźniak
- Department of Biology, Ludwik Rydygier Medical University, 85-092 Bydgoszcz, Poland.
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