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Do persistent morphine effects involve interactions with the genome?

P S Eriksson1, L Rönnbäck, E Hansson

  • 1Institute of Neurobiology, University of Göteborg, Sweden.

Drug and Alcohol Dependence
|August 1, 1989
PubMed
Summary
This summary is machine-generated.

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Paternal morphine exposure before mating reduced offspring birth weight and increased early mortality in rats. These effects persisted into adulthood, indicating long-term impacts of paternal drug exposure.

Area of Science:

  • Reproductive toxicology
  • Developmental toxicology
  • Neuropharmacology

Background:

  • Paternal drug exposure can influence offspring development and health.
  • Morphine is an opioid analgesic with known effects on the central nervous system and reproductive systems.

Purpose of the Study:

  • To investigate the effects of paternal preconception morphine exposure on rat offspring.
  • To assess the impact on birth weight, early survival, growth, and long-term development.

Main Methods:

  • Male rats received morphine in a liquid diet prior to mating.
  • Drug-naive female rats were mated with treated males.
  • Offspring outcomes including birth weight, mortality, weight gain, and adult male development were monitored.

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Main Results:

  • Offspring from morphine-exposed fathers exhibited significantly reduced birth weight.
  • A notable increase in early offspring mortality (34.8%) was observed in the treatment group compared to controls (0%).
  • Offspring showed decreased weight gain and persistent effects were evident in 90-day-old male offspring.

Conclusions:

  • Paternal preconception morphine exposure has detrimental effects on rat offspring, including reduced birth weight and increased mortality.
  • These effects are long-lasting, impacting offspring development into adulthood.
  • Further research is warranted to elucidate the underlying mechanisms of these paternal drug-induced developmental toxicities.