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Neurochemical Research

, Volume 31, Issue 4, pp 549–554 | Cite as

Assessment of Oxidative Damage Induced by Acute Doses of Morphine Sulfate in Postnatal and Adult Rat Brain

  • David Calderón Guzmán
  • Ivonne Espítia Vázquez
  • Norma Osnaya Brizuela
  • Raquel García Alvarez
  • Gerardo Barragán Mejía
  • Ernestina Hernández García
  • Daniel Santamaría
  • Mario la Rosa de Apreza
  • Hugo Juárez Olguín
Article

Abstract

The aim of the present study is to evaluate the oxidative damage in rats of different ages. Weaned rats of 25 g and adults of 300 g were used in groups of 6, a single i.p. dose of morphine sulfate of 3, 6 or 12 mg/kg was administered. All animals were sacrificed to measure GSH and 5-HT levels in brain by liquid chromatography, as well as Na+, K+-ATPase and total ATPase enzymatic activity. 5-HT levels decreased significantly (p<0.05) in adult animals that received 3 and 6 mg morphine. Na+, K+-ATPase activity increased significantly (p<0.05) in all groups of weaned animals. In adult animals, Na+, K+-ATPase and total ATPase partially diminished. GSH levels diminished significantly (p<0.05) both in weaned and in adult groups. The results indicate age-induced changes in cellular regulation and biochemical responses to oxidative stress induced by morphine.

Keywords

Brain damage Free radicals Glutathione Morphine Oxidative damage Opioids 

Notes

Acknowledgement

We thank to Isabel Pérez Monfort for helping to translate the manuscript.

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Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • David Calderón Guzmán
    • 1
  • Ivonne Espítia Vázquez
    • 1
  • Norma Osnaya Brizuela
    • 2
  • Raquel García Alvarez
    • 2
  • Gerardo Barragán Mejía
    • 1
  • Ernestina Hernández García
    • 3
  • Daniel Santamaría
    • 1
  • Mario la Rosa de Apreza
    • 1
  • Hugo Juárez Olguín
    • 3
    • 4
  1. 1.Laboratorio de NeuroquímicaInstituto Nacional de Pediatría (INP)Mexico D.F.Mexico
  2. 2.Laboratorio de Patología ExperimentalInstituto Nacional de Pediatría (INP)Mexico D.F.Mexico
  3. 3.Laboratorio de FarmacologíaInstituto Nacional de Pediatría Mexico D.F.Mexico
  4. 4.Departamento de Farmacología, Facultad de MedicinaUNAMMexicoMexico

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