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  1. No Access

    Article

    Comparative analysis of trehalose production by Debaryomyces hansenii and Saccharomyces cerevisiae under saline stress

    The comparative analysis of growth, intracellular content of Na+ and K+, and the production of trehalose in the halophilic Debaryomyces hansenii and Saccharomyces cerevisiae were determined under saline stress. T...

    J. C. González-Hernández, M. Jiménez-Estrada, A. Peña in Extremophiles (2005)

  2. No Access

    Article

    Effect of D-amino acids on some mitochondrial functions in rat liver

     We studied the role of the D-amino acids (D-aa) D-serine, D-alanine, D-methionine, D-aspartate, D-tyrosine and D-arginine on rat liver mitochondria. The stability of D-amino acids, mitochondrial swelling, tra...

    J. C. González-Hernández, L. Aguilera-Aguirre, V. Pérez-Vázquez, J. Ramírez… in Amino Acids (2003)

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    Article

    Mitochondrial nitric oxide inhibits ATP synthesis Effect of free calcium in rat heart

     Nitric oxide is a small potentially toxic molecule and a diatomic free radical. We report the interaction of L-arginine, oxygen and calcium with the synthesis of nitric oxide in heart mitochondria. Nitric oxi...

    A. Saavedra-Molina, J. Ramírez-Emiliano, M. Clemente-Guerrero… in Amino Acids (2003)

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    Article

    Regulation of the rate of synthesis of nitric oxide by Mg2+ and hypoxia. Studies in rat heart mitochondria

     In isolated rat heart mitochondria, L-arginine is oxidized by a nitric oxide synthase (mtNOS) achieving maximal rates at 1 mM L-arginine. The NOS inhibitor NG-nitro-L-arginine methyl ester (NAME) inhibits the in...

    S. Manzo-Ávalos, V. Pérez-Vázquez, J. Ramírez, L. Aguilera-Aguirre… in Amino Acids (2002)

  5. No Access

    Article

    Effect of Ca2+ and Mg2+ on the Mn-superoxide dismutase from rat liver and heart mitochondria

     The manganese superoxide dismutase (Mn-SOD) converts superoxide anions to hydrogen peroxide plus oxygen, providing the first line of defense against oxidative stress in mitochondria. Heart mitochondria exhibi...

    V. Pérez-Vázquez, J. Ramírez, L. Aguilera-Aguirre, J. C. González-Hernández… in Amino Acids (2002)