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Related Experiment Videos

Lactate formation by the avian lung tissue.

N Ishihara, M Noguchi

    The Tohoku Journal of Experimental Medicine
    |March 1, 1975
    PubMed
    Summary

    Chicken lung lactate and pyruvate formation activity peaks during embryonic development (days 13-16) and declines post-hatching. Liver activity remains constant throughout development.

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    Area of Science:

    • Biochemistry
    • Developmental Biology
    • Avian Physiology

    Background:

    • Lactate and pyruvate metabolism are crucial for cellular energy production.
    • Understanding metabolic shifts during embryonic development is key to avian physiology.

    Purpose of the Study:

    • To investigate the developmental changes in lactate and pyruvate formation activities in chicken (Gallus domestica) lungs and liver.
    • To compare metabolic enzyme activity patterns between embryonic and post-hatching stages.

    Main Methods:

    • Enzyme activity assays were performed on lung and liver tissues from chickens at various developmental stages.
    • Comparative analysis of lactate and pyruvate formation rates was conducted.

    Main Results:

    • Lactate formation activity in the chicken lung was highest between the 13th and 16th days of incubation.
    • This activity decreased significantly during later embryonic development and post-hatching.
    • Pyruvate formation activity mirrored the changes observed in lactate formation within the lung.
    • In contrast, both lactate and pyruvate formation activities in the liver remained relatively constant throughout development.

    Conclusions:

    • The lung exhibits dynamic changes in lactate and pyruvate metabolism during chicken development, suggesting a role in embryonic respiratory adaptation.
    • The liver maintains a stable metabolic profile for these pathways, supporting consistent physiological functions.
    • These findings highlight tissue-specific metabolic regulation during avian ontogeny.

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