Cross bridge ATP utilization in arterial smooth muscle
- 1 January 1976
- journal article
- research article
- Published by Springer Nature in Pflügers Archiv - European Journal of Physiology
- Vol. 361 (3), 297-299
- https://doi.org/10.1007/bf00587295
Abstract
Measurements of oxygen consumption and lactate production were used to estimate the ATP production in porcine carotid arteries. Changes in the total energy metabolism were correlated with changes in force which was altered by changing the muscle length under maximum stimulation. This tension-dependent metabolism could be used to distinguish between cross bridge and other ATP utilization. The tension-dependent metabolism was equal under K+-depolarization or histamine stimulation. Tension cost was 300x smaller than skeletal muscle while the cross bridge cycle duration 30x longer.Keywords
This publication has 16 references indexed in Scilit:
- Force-Generating Capacity and Contractile Protein Content of Arterial Smooth MuscleThe Journal of general physiology, 1974
- Aerobic glycolysis in vascular smooth muscle: Relation to isometric tensionBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1974
- Apparent PO ratio and chemical energy balance in frog sartorius muscle in vitroBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1974
- The effect of the performance of work on total energy output and metabolism during muscular contractionThe Journal of Physiology, 1974
- Influences of Calcium Concentration and pH on the Tension Development and ATPase Activity of the Arterial Actomyosin Contractile SystemJournal of Vascular Research, 1974
- Oxygen sensitivity of vascular smooth muscle: I. In vitro studiesMicrovascular Research, 1973
- Length-Tension Relationship of Smooth Muscle of the Hog Carotid ArteryCirculation Research, 1973
- Energy cost of tonic contraction in a lamellibranch catch muscleThe Journal of Physiology, 1968
- Influence of Ca++ Deficiency and Pronethalol on Metabolic and Contractile Effects of Catecholamines and K‐Ions in Vascular MuscleActa Pharmacologica et Toxicologica, 1967
- Hydrolysis of Adenosinetriphosphate and Creatinephosphate on Isometric Contraction of Vascular Smooth MuscleActa Physiologica Scandinavica, 1965