The effect of swimming exercise of rat myocardial ornithine decarboxylase activity.
Within 30 minutes of swimming exercise there was an increase in myocardial ornithine decarboxylase activity. The activity continued to increase throughout the two hour period of exercise, after which it decreased again. Two hours after exercise, the enzyme activity had returned to the resting level, and four hours after exercise myocardial ornithine decarboxylase activity was slightly less than the resting level. Repeated daily exercise was associated with a diminished response on the second and third days. Subsequently however, myocardial ornithine decarboxylase activity was again stimulated by two hours of swimming exercise.
D000818:Animals; D002262:Carboxy-Lyases / Q000378:metabolism*; D008297:Male; D009206:Myocardium / Q000201:enzymology*; D009955:Ornithine Decarboxylase / Q000378:metabolism*; D005082:Physical Exertion; D051381:Rats; D013550:Swimming; D013997:Time Factors
D002262:Carboxy-Lyases; D009955:Ornithine Decarboxylase