Biological Trace Element Research

, Volume 127, Issue 2, pp 109–115

Plasma Leptin, Plasma Zinc, and Plasma Copper Are Associated in Elite Female and Male Judo Athletes

  • Gustavo Casimiro-Lopes
  • Astrogildo Vianna de Oliveira-Junior
  • Emilson Souza Portella
  • Patrícia Cristina Lisboa
  • Carmen Marino Donangelo
  • Egberto Gaspar de Moura
  • Josely Correa Koury
Article

DOI: 10.1007/s12011-008-8236-2

Cite this article as:
Casimiro-Lopes, G., de Oliveira-Junior, A.V., Portella, E.S. et al. Biol Trace Elem Res (2009) 127: 109. doi:10.1007/s12011-008-8236-2

Abstract

The purpose of this study was to compare plasma leptin, plasma zinc, and plasma copper levels and their relationship in trained female and male judo athletes (n = 10 women; n = 8 men). Blood samples were obtained 24 h after training to measure plasma zinc, copper, and leptin levels. Subjects presented similar values to age (22 ± 2 years old), body mass index (24 ± 1 kg/m2), plasma zinc (17.2 ± 2 μmol/L), copper (12.5 ± 2 μmol/L), and leptin (5.6 ± 1.3 μg/L). However, height, total body mass, lean mass, fat mass, and sum of ten-skinfold thickness were higher in male than female. Plasma leptin was associated with sum of ten skinfolds in male (r = 0.91; p < 0.001) and female athletes (r = 0.84; p < 0.003). Plasma zinc was associated with leptin in males (r = 0.82; p < 0.05) while copper was associated with plasma leptin in females (r = 0.66; p < 0.05). Our results suggest that young judo athletes lost sex-related differences in leptin levels. Plasma zinc, plasma copper, and energy homeostasis may be involved in regulation of plasma leptin.

Keywords

LeptinZincCopperJudoAthletes

Copyright information

© Humana Press Inc. 2008

Authors and Affiliations

  • Gustavo Casimiro-Lopes
    • 3
  • Astrogildo Vianna de Oliveira-Junior
    • 4
  • Emilson Souza Portella
    • 1
  • Patrícia Cristina Lisboa
    • 3
  • Carmen Marino Donangelo
    • 2
  • Egberto Gaspar de Moura
    • 3
  • Josely Correa Koury
    • 1
    • 2
  1. 1.Núcleo de Estudos em Nutrição e Fatores de Estresse, Departamento de Nutrição Básica e Experimental, Instituto de NutriçãoUniversidade do Estado do Rio de JaneiroRio de JaneiroBrazil
  2. 2.Laboratório de Bioquímica Nutricional e de Alimentos, Departamento de Bioquímica, Instituto de QuímicaUniversidade Federal do Rio de JaneiroRio de JaneiroBrazil
  3. 3.Laboratório de Fisiologia Endócrina, Departamento de Ciências Fisiológicas, Instituto de BiologiaUniversidade do Estado do Rio de JaneiroRio de JaneiroBrazil
  4. 4.Laboratório de Cineantropometria e Eletromiografia, Departamento de Ciências da Atividade Física, Instituto de Educação Física e dos DesportosUniversidade do Estado do Rio de JaneiroRio de JaneiroBrazil