Studies of myofibrillar ATPase in ragweed-sensitized canine pulmonary smooth muscle.
The maximal shortening velocities of tracheal and pulmonary vascular smooth muscle from ragweed-sensitized dogs were significantly higher than those of muscles from their littermate controls. Myofibrils of tracheal and pulmonary vascular smooth muscle from ragweed-sensitized and control dogs were obtained with use of Triton X-100 homogenizing solution. The myofibrillar adenosinetriphosphatase (ATPase) activities of the sensitized tissues were significantly higher (P less than 0.05) than those of their respective controls.
D000251:Adenosine Triphosphatases / Q000378:metabolism*; D000818:Animals; D004285:Dogs; D007114:Immunization; D008168:Lung / Q000201:enzymology / Q000276:immunology*; D009130:Muscle, Smooth / Q000201:enzymology / Q000276:immunology*; D009131:Muscle, Smooth, Vascular / Q000201:enzymology / Q000276:immunology; D009210:Myofibrils / Q000201:enzymology*; D011058:Pollen / Q000276:immunology*; D011651:Pulmonary Artery / Q000201:enzymology / Q000276:immunology; D014132:Trachea / Q000201:enzymology / Q000276:immunology
D000251:Adenosine Triphosphatases