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Related Experiment Videos

Decrease in the placental transfer of chloramphenicol when administered in albumin microspheres into rats

M A Onur1, I Vural, H S Kaş

  • 1Hacettepe University, Department of Biology, Beytepe, Ankara, Turkey.

Journal of Microencapsulation
|July 1, 1993
PubMed
Summary

Maternal antibiotic use during pregnancy can harm fetuses. Entrapping chloramphenicol in albumin microspheres significantly reduced its placental transfer in pregnant rats, suggesting a safer drug delivery method.

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Area of Science:

  • Pharmacology
  • Toxicology
  • Drug Delivery Systems

Background:

  • Chloramphenicol, an antibiotic, crosses the human placenta.
  • Maternal administration of chloramphenicol can result in teratogenic effects on the fetus.
  • Protecting the fetus from harmful drug exposure during pregnancy is a significant clinical challenge.

Purpose of the Study:

  • To investigate the effect of entrapping chloramphenicol in albumin microspheres on placental transport.
  • To evaluate the potential of drug modification as a strategy to mitigate fetal exposure to harmful medications during pregnancy.

Main Methods:

  • Albumin microspheres were prepared to encapsulate chloramphenicol.
  • Pregnant rats were administered free chloramphenicol or chloramphenicol-loaded albumin microspheres intravenously.

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  • Placental transport of chloramphenicol was assessed and compared between the two administration groups.

    • Main Results:

    • Intravenous administration of chloramphenicol entrapped in albumin microspheres significantly reduced placental transport compared to the free drug.
    • Albumin microsphere formulation demonstrated a lower fetal exposure to chloramphenicol.

    Conclusions:

    • Drug modification, specifically entrapment in albumin microspheres, can effectively reduce placental transfer of chloramphenicol.
    • This approach offers a potential strategy to minimize harmful drug effects on the fetus during pregnancy.
    • Further research into drug encapsulation is warranted for safer medication use in pregnant individuals.