CONDIÇÃO REPRODUTIVA ASSOCIADA À MUDANÇAS NA CAPACIDADE ANTIOXIDANTE LIPOSOLÚVEL E O DANO A LIPÍDIOS NO OURIÇO DO MAR LOXECHINUS ALBUS (ECHINODERMATA: ECHINOIDEA)

Autores

  • Analía F. Pérez Universidad de Buenos Aires, Argentina
  • Gabriela Malanga Universidad de Buenos Aires, Argentina
  • Susana Puntarulo Universidad de Buenos Aires, Argentina

DOI:

https://doi.org/10.15359/revmar.3.14

Palavras-chave:

α-tocoferol, β-caroteno, equinenona, peroxidação de lipídios, condição reprodutiva.

Resumo

A hipótese deste estudo foi que o dano oxidante na fase lipídica das gônadas no ouriço Loxechinus albus aumenta durante a gametogêneses. Descreveram-se seis condições reprodutivas (estados reprodutivos) nos machos e fêmeas: (a) imaturos, (b) crescimento, (c) prematuro I, (d) prematuro II, (e) maduro e (f) desova. O conteúdo dos antioxidantes lipossolúveis, assim como o dano a lipídios (estimados como o conteúdo de substâncias reativas ao ácido 2-tiobarbitúrico (TBARS), e o conteúdo de radicais lipídicos) foi analisado. O conteúdo dos antioxidantes lipossolúveis α-tocoferol (α-TH), β-caroteno e equinenona diminuiu durante a gametogêneses. Em contraste, tanto o conteúdo de TBARS como dos radicais lipídicos aumentou. Porém, o consumo de antioxidantes lipossolúveis não resultou ser suficiente para controlar de forma eficiente o dano aos lipídios; já que o índice de conteúdo de TBARS/conteúdo de a -TH, tirado como um indicador da relação dano/proteção, aumentou significativamente durante a maturidade gonadal. Portanto, una ativa alimentação que permita a incorporação de antioxidantes através da dieta é requerida para preparar a gônada adequadamente para o próximo ciclo reprodutivo.

Biografia do Autor

Analía F. Pérez, Universidad de Buenos Aires

Department of Ecology, Genetics and Evolution, School of Exact and Natural Sciences

Gabriela Malanga, Universidad de Buenos Aires

Physical Chemistry-PRALIB, School of Pharmacy and Biochemistry, Physical Chemistry-PRALIB, School of Pharmacy and Biochemistry

Susana Puntarulo, Universidad de Buenos Aires

Physical Chemistry-PRALIB, School of Pharmacy and Biochemistry, Physical Chemistry-PRALIB, School of Pharmacy and Biochemistry

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Publicado

2011-12-31

Como Citar

Pérez, A. F., Malanga, G., & Puntarulo, S. (2011). CONDIÇÃO REPRODUTIVA ASSOCIADA À MUDANÇAS NA CAPACIDADE ANTIOXIDANTE LIPOSOLÚVEL E O DANO A LIPÍDIOS NO OURIÇO DO MAR LOXECHINUS ALBUS (ECHINODERMATA: ECHINOIDEA). Revista Ciencias Marinas Y Costeras, 3, 183-194. https://doi.org/10.15359/revmar.3.14

Edição

Seção

Artigos científicos

Como Citar

Pérez, A. F., Malanga, G., & Puntarulo, S. (2011). CONDIÇÃO REPRODUTIVA ASSOCIADA À MUDANÇAS NA CAPACIDADE ANTIOXIDANTE LIPOSOLÚVEL E O DANO A LIPÍDIOS NO OURIÇO DO MAR LOXECHINUS ALBUS (ECHINODERMATA: ECHINOIDEA). Revista Ciencias Marinas Y Costeras, 3, 183-194. https://doi.org/10.15359/revmar.3.14

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