Ionophoretic-like properties of ketorolac for calcium
Por:
Chavez R., Bravo C., Zazueta C., Pichardo J., Uribe A., Corona N., Reyes-Vivas H., Gonzalez C., Chavez E.
Publicada:
1 ene 1993
Resumen:
Ketorolac is an analgesic drug known to induce its therapeutic effect by inhibiting prostaglandin synthesis. In this work we introduce the nonsteroidal antialgesic drug as a compound with ionophoretic properties for calcium ions, showing that ketorolac induces mitochondrial Ca++ release. This reaction did not depend on an uncoupler-like action, because the drug does not collapse the internal negative membrane potential nor does it affect oxidative phosphorylation. In addition, it is shown that ketorolac ferries calcium ions into energized liposomes and has a hydrophobic phase with an affinity constant of 4 x 10-3. The therapeutic action of ketorolac is related to its ionophoretic properties in addition to its well known inhibitory effect on the cyclooxygenase enzyme.
Filiaciones:
Chavez R.:
Departamento de Bioquimica, Instituto Nacional de Cardiologia, Ignacio Chavez, Juan Badiano 1, Tlaplan D.F. 014080, Mexico
Bravo C.:
Departamento de Bioquimica, Instituto Nacional de Cardiologia, Ignacio Chavez, Juan Badiano 1, Tlaplan D.F. 014080, Mexico
Zazueta C.:
Departamento de Bioquimica, Instituto Nacional de Cardiologia, Ignacio Chavez, Juan Badiano 1, Tlaplan D.F. 014080, Mexico
Pichardo J.:
Departamento de Bioquimica, Instituto Nacional de Cardiologia, Ignacio Chavez, Juan Badiano 1, Tlaplan D.F. 014080, Mexico
Uribe A.:
Departamento de Bioquimica, Instituto Nacional de Cardiologia, Ignacio Chavez, Juan Badiano 1, Tlaplan D.F. 014080, Mexico
Corona N.:
Departamento de Bioquimica, Instituto Nacional de Cardiologia, Ignacio Chavez, Juan Badiano 1, Tlaplan D.F. 014080, Mexico
Reyes-Vivas H.:
Departamento de Bioquimica, Instituto Nacional de Cardiologia, Ignacio Chavez, Juan Badiano 1, Tlaplan D.F. 014080, Mexico
Gonzalez C.:
Departamento de Bioquimica, Instituto Nacional de Cardiologia, Ignacio Chavez, Juan Badiano 1, Tlaplan D.F. 014080, Mexico
Chavez E.:
Departamento de Bioquimica, Instituto Nacional de Cardiologia, Ignacio Chavez, Juan Badiano 1, Tlaplan D.F. 014080, Mexico
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