Thioctic Acid Contained in Visual Cell

Science  02 Dec 1960:
Vol. 132, Issue 3440, pp. 1668
DOI: 10.1126/science.132.3440.1668


The D-α-thioctic acid content of the eye of the frog (Rana nigromaculata) was determined quantitatively. Outer segments of rods, whole retinas, and choroids contained, respectively 2.0, 8.6, and 13.0 mµg of D-α-thioctic acid per milligram (dry weight). DL-a-Thioctic acid had no accelerating effect on the regeneration of rhodopsin in vivo.