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Lipid peroxidation in developing rat brain during undernutrition.

S Chakrabarti, R Shankar

    Neuroscience Letters
    |July 27, 1984
    PubMed
    Summary
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    Undernutrition increases lipid peroxidation in developing rat brains, particularly by the 12th postnatal day. However, this effect is reversible with nutritional rehabilitation, normalizing lipid peroxidation levels.

    Area of Science:

    • Neuroscience
    • Biochemistry
    • Developmental Biology

    Background:

    • Undernutrition during development can impact brain health.
    • Lipid peroxidation is a marker of oxidative stress.
    • Previous studies have explored oxidative stress markers in developing brains.

    Purpose of the Study:

    • To investigate the impact of undernutrition on lipid peroxidation in the developing rat brain.
    • To assess the reversibility of these changes following nutritional rehabilitation.

    Main Methods:

    • In vitro and in vivo studies were conducted on developing rat brains.
    • Lipid peroxidation was measured in brain homogenates and mitochondrial fractions.
    • Malonaldehyde levels were determined in vivo.
    • Nutritional rehabilitation was implemented for two weeks.

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    Main Results:

    • Lipid peroxidation was significantly elevated in undernourished rat brains compared to controls.
    • This elevation was most pronounced at the 12th postnatal day.
    • Following two weeks of rehabilitation, increased lipid peroxidation was no longer detected.
    • In vivo malonaldehyde levels showed no significant difference between groups.

    Conclusions:

    • Early-life undernutrition enhances lipid peroxidation in the developing brain.
    • Nutritional rehabilitation effectively reverses the detrimental effects of undernutrition on brain lipid peroxidation.
    • These findings highlight the critical window for intervention during early development.