Abstract
1. In the supernatant fraction isolated from the homogenate of scorbutic guinea pig gingiva, five lactate dehydrogenase (LDH) isoenzymes were always found by the starch gel electrophoresis, and the order of the activity was found to be LDH 2>LDH 1>LDH 3>LDH 4>LDH 5.
2. The activity of LDH 1 and LDH 2 in scorbutic gingiva was about 1.4- and 2-fold respectively of the normal. However, the activity of LDH 3, LDH 4 and LDH 5 was not increased.
3. In the supernatant fraction and the homogenate obtained from scorbutic gingiva, LDH activators were not found.
