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Respiratory capacity of white, red, and intermediate muscle: adaptative response to exercise.
TLDR
These results are not compatible with the interpretation that the exercise-induced increase in oxidative capacity of muscle is due to transformation of white into red fibers as appears to be the case by histochemical appearance. Expand
Adenine nucleotide degradation in slow-twitch red muscle.
TLDR
The present results indicate that AdN metabolism in the soleus muscle is complex, yielding expected degradation products or a loss of total purines, depending on contraction conditions. Expand
Ammonia and IMP in different skeletal muscle fibers after exercise in rats.
TLDR
The results indicate that fast-twitch muscle fibers, particularly the fast- twitch glycolytic fibers, are the source of the ammonia produced during strenuous exercise. Expand
Glycolytic enzymes in different types of skeletal muscle: adaptation to exercise.
TLDR
As a result of the adaptions induced by exercise, the red and intermediate types of skeletal muscle become more like heart muscle in their enzyme patterns. Expand
Substrate depletion in different types of muscle and in liver during prolonged running.
TLDR
Results suggest that in the rat performing prolonged moderate exercise, a) white muscle contracts infrequently and b) liver glycogen can be a more important source of energy than muscle glycogen. Expand
AMP deamination and IMP reamination in working skeletal muscle.
TLDR
The extent of purine nucleotide cycle (PNC) turnover was estimated in fast-twitch muscle of pentobarbital sodium anesthetized rats during in situ stimulation, by the accumulation of excess IMP after blocking IMP reamination with the adenylosuccinate synthetase inhibitor, hadacidin. Expand
AMP deaminase binding in contracting rat skeletal muscle.
TLDR
The results are consistent with myosin binding having a role in AMP deaminase activation and subsequent IMP formation in contracting muscle, and extensive binding during contractions was also evident without cellular acidosis (iodoacetic acid-treated muscle). Expand
De novo synthesis of adenine nucleotides in different skeletal muscle fiber types.
TLDR
This study evaluated whether there are corresponding differences in the rates of de novo synthesis of adenine nucleotide among fiber type sections of skeletal muscle using an isolated perfused rat hindquarter preparation and showed that intracellular glycine is closely related to the direct precursor pool. Expand
Muscle blood flow in trained rats with peripheral arterial insufficiency.
TLDR
Results illustrate that peripheral adaptations occur within the ischemic hindlimb of trained animals to redistribute the limited O2 delivery to the active muscles most affected by stenosis. Expand
Creatine analogue beta-guanidinopropionic acid alters skeletal muscle AMP deaminase activity.
TLDR
Dietary supplementation of the creatine analogue beta-guanidinopropionic acid (beta-GPA) decreases in vitro skeletal muscle AMP deaminase (AMP-D) activity in rats, and posttranslational changes in AMP-D appear related to changes in activity. Expand
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