The inhibitory effects of omeprazole on melanogenesis in zebrafish. (a), OMP inhibited pigment formation in developing zebrafish larvae. Bar: 625 µm. (b), OMP decreased the pigment area density in zebrafish larvae. (c), The intracellular Tyr activity decreased to 48% compared with that of the untreated zebrafish larvae. (d), OMP decreased the total melanin pigment amount in zebrafish larvae. (d), OMP inhibited the expression of TYP, TRP-1a, TRP-2 and MITFb mRNA levels in a dose-dependent manner as detected by real-time RT-PCR analysis. Fold changes relative to each gene level in the control are presented as mean ± SD. Each value is expressed as the mean ± SD of triplicate determinations. *P < 0.05 and **P < 0.01 versus the control group.

Acknowledgments
This image is the copyrighted work of the attributed author or publisher, and ZFIN has permission only to display this image to its users. Additional permissions should be obtained from the applicable author or publisher of the image. Full text @ Exp. Dermatol.