抄録
1.Five isoenzymes of LDH have been isolated from periodontitis gingiva.
2.The activity of LDH3 and LDH4 in periodontitis gingiva increased about 2 fold than that of the normal.
3.In the activity of LDH1, LDH2 and LDH5, no difference was observed between normal and periodontitis gingivae.
4.As kinetic properties of LDH3 and LDH4 in periodontitis gingiva were identical with those from normal gingiva, net synthesis of these isoenzymes was suggested.
