title: Biochemical assessments of retinol, alpha-tocopherol, pyridoxal--5-phosphate oxidative stress index and total antioxidant status in adolescent professional basketball players and sedentary controls.
abstract: Physical training is known to increase the antioxidant defence system and reduce exercise-induced oxidative stress. However, intense physical aerobic and anaerobic training with competition, such as those imposed on young professional basketball players can induce an increase of oxidative stress, which can be implicated with overtraining. The aim of this study was to test the effect of training and competition load on oxidative stress, antioxidant status, and vitamin levels in basketball players. Oxidative Stres Index (OSI 1), Total Peroxide (TPx) antioxidant (vitamin E, A and The total antioxidant status (TAC 1)), biochemical lipid parameters, as well as training results were measured. Results showed that all plasma vitamin levels were significantly higher in basketball players (vitamin A: 1.61 +/- 0.05 mmol/l, vitamin E: 26.45 +/- 0.72 mmol/l, vitamin B6: 10.58 +/- 0.7 mgr/l) than sedentary controls (vitamin A: 1.22 +/- 0.04 mmol /l, vitamin E: 19.24 +/- 0.73 mmol/l, vitamin B6: 6.0 +/- 0.35 mgr/l) (p < 0.01). In addition TAC 1 was 2.06 +/- 0.02 and 1.89 +/- 0.01 mmol Trolox eq/L in basketball players and controls, respectively (p < 0.01). Conversely OSI was 0.89 +/- 0.09 arbitrary unit and 0.88 +/- 0.071 arbitrary unit in basketball players and controls, respectively (p > 0.05). However, total plasma peroxide level (TPx) of basketball players and controls was not statistically different (18.55 +/- 2.07 and 17.18 +/- 1.61 micromol H2O2/L, respectively; p > 0.05). We conclude that physical exercise increase antioxidant levels and cause balance of the homeostasis. Training can not have positive or negative effects on oxidative stress depending on training load. The results suggested that oxidative stress and antioxidant measurement are significant in the biological follow-up of young basketball players.
authors.affiliation: Department of Biochemistry, Gaziantep University Medical School, Gaziantep, Turkey. necatyilmaz@hotmail.com
authors.forename: Necat
authors.initials: N
authors.lastname: Yilmaz
authors.forename: Ozcan
authors.initials: O
authors.lastname: Erel
authors.forename: Muhsin
authors.initials: M
authors.lastname: Hazer
authors.forename: Cahit
authors.initials: C
authors.lastname: Bağci
authors.forename: Emine
authors.initials: E
authors.lastname: Namiduru
authors.forename: Ece
authors.initials: E
authors.lastname: Gül
mesh_terms: D000293:Adolescent; D000975:Antioxidants / Q000378:metabolism* / Q000502:physiology; D001490:Basketball / Q000502:physiology*; D016022:Case-Control Studies; D002648:Child; D003163:Competitive Behavior / Q000502:physiology*; D015444:Exercise / Q000502:physiology*; D006801:Humans; D007407:Interviews as Topic; D008297:Male; D010084:Oxidation-Reduction; D018384:Oxidative Stress / Q000502:physiology*; D010806:Physical Education and Training / Q000379:methods*; D010807:Physical Endurance / Q000502:physiology; D011732:Pyridoxal Phosphate / Q000097:blood; D014801:Vitamin A / Q000097:blood; D014815:Vitamins / Q000097:blood* / Q000502:physiology; D024502:alpha-Tocopherol / Q000097:blood
chemical_list: D000975:Antioxidants; D014815:Vitamins; D014801:Vitamin A; D011732:Pyridoxal Phosphate; D024502:alpha-Tocopherol