Plucked human hair as a tissue in which to assess pharmacodynamic end points during drug development studies
2005

Using Plucked Human Hair to Study Drug Effects

Sample size: 12 publication Evidence: moderate

Author Information

Author(s): Camidge D R, Randall K R, Foster J R, Sadler C J, Wright J A, Soames A R, Laud P J, Smith P D, Hughes A M

Primary Institution: AstraZeneca

Hypothesis

Can plucked human hair be used to assess pharmacodynamic endpoints during drug development?

Conclusion

The study shows that it is feasible to detect and quantify cell-cycle-related nuclear markers in plucked human hair, which could be useful in drug development studies.

Supporting Evidence

  • The study successfully quantified six nuclear markers in plucked hair.
  • Plucked hair offers advantages over skin biopsies for drug effect studies.
  • The study involved a detailed methodology for hair processing and analysis.

Takeaway

Scientists can use hair from people to see how drugs affect cells, which is easier than taking skin samples.

Methodology

The study involved plucking hair from 12 healthy Caucasian males and quantifying six nuclear markers using immunohistochemistry.

Potential Biases

Potential biases related to the small number of hairs and subjects, as well as variability in hair stages.

Limitations

The study had small sample sizes for some markers and could not distinguish between processing failures and biological zeros.

Participant Demographics

12 healthy Caucasian males aged 18–45 years.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1038/sj.bjc.6602558

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