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Body surface area-based equivalent dose calculation in tree shrew.

Wei Xia1,2, Zong-Jian Huang1,2, Yi-Wei Feng1,2

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This summary is machine-generated.

This study introduces a body surface area (BSA) method for converting drug doses between tree shrews and other species. This facilitates accurate dosing strategies for tree shrew (Tupaia belangeri) in biomedical research.

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Area of Science:

  • Biomedical Research
  • Pharmacology
  • Comparative Physiology

Background:

  • Tree shrews (Tupaia belangeri) are valuable in research, but drug dose conversion to human and other species is lacking.
  • This gap hinders the broader application of tree shrews in preclinical studies.
  • Standardized methods for interspecies dose extrapolation are crucial for reliable research outcomes.

Purpose of the Study:

  • To establish a reliable method for calculating equivalent drug doses between tree shrews and other species.
  • To enable accurate dosing strategies for tree shrew models in biomedical research.
  • To facilitate the wider adoption of tree shrews in drug development and toxicological studies.

Main Methods:

  • Body surface area (BSA) of tree shrews was measured using Image J software.
  • Average Km values for tree shrews were calculated based on body weight and BSA.
  • Conversion coefficients for equivalent drug doses were derived using established data.

Main Results:

  • The Km value for tree shrews was determined to be 0.105 ± 0.001.
  • A formula for BSA-based dose conversion from rats to tree shrews was developed (D-ts = 1.36 × D-a).
  • The conversion method demonstrated less than 10% error for tree shrew body weights between 0.09-0.15 kg.

Conclusions:

  • The developed BSA method provides a robust approach for equivalent drug dose conversion involving tree shrews.
  • Calculated coefficients enable dose transfer from tree shrews to humans and other species.
  • This facilitates optimized dosing strategies, enhancing the utility of tree shrews in preclinical research.