Footnotes for retinoic acid and myogenesis

[1]Supported by PHS Grant 507RR7031H of the BMRG, Indiana University

[2]Pietsch, P. (1991) Effects of retinoic acid on the muscle patterns produced during forelimb regeneration in larval salamanders (Ambystoma). Cytobios 66: 41-61.

[3] Some of the differences in the literature could be a result of the use of refrigerated stock solutions by some investigators; retinoic acid is heat-sensitive. image

Here is a sharpened, rotated version of the same photo as in figure 5 with the abnormalities highlighted. Even in the photograph, one can count six fingers on the hand in the lower half of the picture. The large cone in the upper part of the picture is an aberrant supernumerary limb.