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Activity of antioxidant enzymes and concentrations of thiobarbituric acid reactive substances (TBARS) in melanotic and amelanotic Bomirski melanoma tissues in the golden hamster (Mesocricetus auratus, Waterhouse).
Neoplasma. 2002; 49(6):401-4.N

Abstract

The activity of superoxide dismutase (SOD) and glutathione peroxidase (GSHPx), as well as the concentration of thiobarbituric acid reactive substances (TBARS) in tissues of transplantable melanoma in the golden hamster were measured and compared. Ten inbred male hamsters were used for the experiment. They were divided into two groups and were given Bomirski melanoma cells subcutaneously. The first group was given melanotic (Ma) melanoma cells. The second group was given amelanotic (Ab) melanoma cells. Thirty days after the transplantation the hamsters were dissected and the tumor tissues were taken and homogenized. A statistically significantly higher activity of the measured antioxidant enzymes was found in homogenates of Ma tumor than in homogenates of the Ab tumor. Activity of SOD is 8% higher in melanotic melanoma, 24% higher in CAT, and 45% higher in GSHPx. Statistically significant differences between TBARS concentrations were not confirmed. The higher activity of antioxidant enzymes in the melanotic tumor is a result of increased generation of oxygen-derived free radicals. It is presumed that it is strictly connected with intensified production of quinone and semiquinone radicals in the process of melanogenesis.

Authors+Show Affiliations

Department of Biology, Ludwik Rydygier Medical University, Bydgoszcz, Poland. alina-wozniak@wp.plNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

12584588

Citation

Woźniak, A, et al. "Activity of Antioxidant Enzymes and Concentrations of Thiobarbituric Acid Reactive Substances (TBARS) in Melanotic and Amelanotic Bomirski Melanoma Tissues in the Golden Hamster (Mesocricetus Auratus, Waterhouse)." Neoplasma, vol. 49, no. 6, 2002, pp. 401-4.
Woźniak A, Drewa T, Drewa G, et al. Activity of antioxidant enzymes and concentrations of thiobarbituric acid reactive substances (TBARS) in melanotic and amelanotic Bomirski melanoma tissues in the golden hamster (Mesocricetus auratus, Waterhouse). Neoplasma. 2002;49(6):401-4.
Woźniak, A., Drewa, T., Drewa, G., Woźniak, B., & Schachtschabel, D. O. (2002). Activity of antioxidant enzymes and concentrations of thiobarbituric acid reactive substances (TBARS) in melanotic and amelanotic Bomirski melanoma tissues in the golden hamster (Mesocricetus auratus, Waterhouse). Neoplasma, 49(6), 401-4.
Woźniak A, et al. Activity of Antioxidant Enzymes and Concentrations of Thiobarbituric Acid Reactive Substances (TBARS) in Melanotic and Amelanotic Bomirski Melanoma Tissues in the Golden Hamster (Mesocricetus Auratus, Waterhouse). Neoplasma. 2002;49(6):401-4. PubMed PMID: 12584588.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Activity of antioxidant enzymes and concentrations of thiobarbituric acid reactive substances (TBARS) in melanotic and amelanotic Bomirski melanoma tissues in the golden hamster (Mesocricetus auratus, Waterhouse). AU - Woźniak,A, AU - Drewa,T, AU - Drewa,G, AU - Woźniak,B, AU - Schachtschabel,D O, PY - 2003/2/14/pubmed PY - 2003/3/21/medline PY - 2003/2/14/entrez SP - 401 EP - 4 JF - Neoplasma JO - Neoplasma VL - 49 IS - 6 N2 - The activity of superoxide dismutase (SOD) and glutathione peroxidase (GSHPx), as well as the concentration of thiobarbituric acid reactive substances (TBARS) in tissues of transplantable melanoma in the golden hamster were measured and compared. Ten inbred male hamsters were used for the experiment. They were divided into two groups and were given Bomirski melanoma cells subcutaneously. The first group was given melanotic (Ma) melanoma cells. The second group was given amelanotic (Ab) melanoma cells. Thirty days after the transplantation the hamsters were dissected and the tumor tissues were taken and homogenized. A statistically significantly higher activity of the measured antioxidant enzymes was found in homogenates of Ma tumor than in homogenates of the Ab tumor. Activity of SOD is 8% higher in melanotic melanoma, 24% higher in CAT, and 45% higher in GSHPx. Statistically significant differences between TBARS concentrations were not confirmed. The higher activity of antioxidant enzymes in the melanotic tumor is a result of increased generation of oxygen-derived free radicals. It is presumed that it is strictly connected with intensified production of quinone and semiquinone radicals in the process of melanogenesis. SN - 0028-2685 UR - https://www.unboundmedicine.com/medline/citation/12584588/Activity_of_antioxidant_enzymes_and_concentrations_of_thiobarbituric_acid_reactive_substances__TBARS__in_melanotic_and_amelanotic_Bomirski_melanoma_tissues_in_the_golden_hamster__Mesocricetus_auratus_Waterhouse__ L2 - https://medlineplus.gov/skincancer.html DB - PRIME DP - Unbound Medicine ER -