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Copper distribution within and between newborn livers.

G Diaz1, G Faa, A M Farci

  • 1Dipartimento di Citomorfologia, Universitá di Cagliari, Italy.

Journal of Trace Elements and Electrolytes in Health and Disease
|June 1, 1990
PubMed
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Newborns have high liver copper levels, especially in the left lobe. Infant liver copper is lower and more evenly distributed, similar to adults, with high copper also found in bile.

Area of Science:

  • Pediatric Pathology
  • Trace Element Analysis
  • Hepatology

Background:

  • Copper is an essential trace element vital for various physiological processes.
  • Abnormal copper accumulation in the liver can lead to significant health issues.

Purpose of the Study:

  • To investigate copper distribution in the livers of newborns and infants.
  • To compare hepatic copper concentrations between newborns, infants, and adults.
  • To assess the correlation between liver biopsy copper levels and autopsy tissue samples.

Main Methods:

  • Autopsy liver samples (blocks and needle biopsy) and bile were collected from 9 newborns and 3 infants.
  • Copper concentration was quantified using dry tissue weight.
  • Liver blocks were sampled at ten intervals from right to left lobe.

Related Experiment Videos

  • Percutaneous biopsy copper levels were statistically correlated with average block copper content.

    • Main Results:

    • Newborn livers showed high copper (93-335 mg/Kg dry weight) with a right-to-left lobe gradient.
    • Infant livers exhibited lower, more uniform copper levels (49-123 mg/Kg dry weight), resembling adult patterns.
    • Bile copper concentrations were consistently high (99-413 mg/Kg dry material) in both groups, notably in infants.
    • Percutaneous biopsy copper moderately predicted average liver block copper (r²=0.54, P<0.01).

    Conclusions:

    • Hepatic copper accumulation patterns differ significantly between newborns and infants.
    • Bile serves as a significant route for copper excretion, even with low hepatic copper in infants.
    • Liver biopsy is a moderately reliable indicator of overall hepatic copper content.