MODE OF ACTION OF THYROXINE UPON SUCCINIC DEHYDROGENASE SYSTEM OF RAT TISSUE HOMOGENATES <I>IN VITRO</I>

Abstract

Processes of methylene blue reduction as affected by change in degree of evacuation.In this case,0.4ml of 0.5% mouse liver homogenate (2 mg wet weight/3 nil),0.2ml of 0.2 M succinate and 0.2ml of 0.01% methylene blue were used.Degree of evacuation in A:for 3 minutes to 7 mmHa,B:for 6 minutes to 7 mmHg,C: for 10 minutes to 6 mmHg, D:for 20 minutes to 5.5 mmHg(duplicate). YAMAMOTO

Effect of Thyroid Hormones and Their Metabolic Products Upon Succinic Dehydrogenase Activity of Mouse Heart Muscle in Vitro

“…The activity of succinic dehydrogenase was measured employing Thunberg tubes after Yamamoto and Sugisawa (11). The composition of the reaction mixture was as follows:In the main tube:1) 0.1M K2HPO4-KH2PO4 buffer (PH 7.4) 1.3 ml., 2) 0.2% homogenate 0.6ml., 3) fig.…”

COMPARATIVE ACTIVITIES OF SUCCINIC AND GLUTAMIC DEHYDROGENASES OF TAIL, DORSUM AND HIND LEG MUSCLES DURING NORMAL METAMORPHOSIS OF <I>RANA CATESBIANA</I>

“…p. m. for 2 mins. , succinic and glutamic dehydrogenases were assayed as described before (Yamamoto and Sugisawa, 1957). The table shows comparative activities of the two enzymes.…”