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. Author manuscript; available in PMC: 2011 May 30.
Published in final edited form as: J Am Acad Dermatol. 2009 Jun 13;61(2):252–258. doi: 10.1016/j.jaad.2009.03.013

Figure 1.

Figure 1

Basal CYP26 enzymatic activity in normal human skin. After isolating microsomal fractions from the epidermis of keratome biopsies obtained from healthy subjects (N=118), basal CYP26 enzymatic activity (expressed as formation of 4-hydroxy RA [pg/min] per mg of total isolated protein) was determined.