Disclaimer: The information contained herein should NOT be used as a substitute for the advice of an appropriately qualified and licensed physician or other health care provider. The tool is not a substitute for the care provided… (more)
“We, therefore, conclude that ketamine has two effects on Ca2+ transport in isolated pulmonary artery smooth muscle: 1) it inhibits Ca2+ influx, and 2) it stimulates Ca2+-ATPase to cause efflux.”
“It is concluded that, in this model of closed cranial impact, 180 mg/kg of ketamine given 1 or 2 h after injury reduced both the increase in brain tissue calcium and the decrease in brain tissue magnesium at 48 h following head trauma.”
Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism • 1993 | View Paper
“In concentration-response curves, ketamine produced an insurmountable inhibition of contractions produced by KCl and the L-type Ca2+ channel agonist, Bay k 8644.”
European journal of pharmacology • 1993 | View Paper
“Conclusions:These findings indicate that the direct negative inotropic effect of ketamine results from a decrease in intracellular Ca++ availability with no changes in myofibrillar Ca++ sensitivity.”
“However, the phasic contraction produced by NE with 2mM lanthanum pretreatment, which is release of intracellular calcium , was also inhibited by ketamine.”
“Moreover, the tonic contraction produced by NE after depletion of the agonist-releasable pool of intracellular calcium , which is thought to be due to calcium influx, was depressed by ketamine.”
“Preincubation with ketamine produced a concentration-dependent inhibition of contractile responses elicited by the addition of calcium ion (1.6 mM) to a Ca(++)-free depolarizing solution.”