Relationship of PKA and acute skin irritation in humans

Bret Berner, Donald R. Wilson, Richard H. Guy, Gerard C. Mazzenga, Frank H. Clarke, Howard I. Maibach

Research output: Contribution to journalArticlepeer-review

Abstract

The relationship between pKa and skin irritation in humans was studied for a homologous series of benzoic acid derivatives with predicted permeation through human skin at comparable rates (15-90 μg/cm2/hr). Skin irritation and pKa are strongly correlated, and, for pKa ≤4, skin irritation rapidly increases. Laser Doppler velocimetric assessment of skin blood flow, color meter readings, erythema, edema, and the primary irritation index are all linearly correlated and related to pKa; erythema at 24 hr appears to be the most sensitive variable.

Original languageEnglish
Pages (from-to)481-492
Number of pages12
JournalCutaneous and Ocular Toxicology
Volume8
Issue number4
DOIs
Publication statusPublished - 31 Dec 1989

Bibliographical note

Funding Information:
RHG is the recipient of a special Emphasis Research Career Award (KOl-OH-00017) from the National Institute of Occupational Safety and Health. He is supported in part by NIH Grant GM-33395.

ASJC Scopus subject areas

  • Toxicology

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