dc.creatorCastillo, Jimmy
dc.creatorHung, Jeanette
dc.creatorRodríguez, María del C.
dc.creatorBastidas, Elsy
dc.creatorLaboren, Ivanna
dc.creatorJaimes, Alba
dc.date2017-01-19T16:39:06Z
dc.date2017-01-19T16:39:06Z
dc.date2005-06-16
dc.date.accessioned2022-10-28T01:20:09Z
dc.date.available2022-10-28T01:20:09Z
dc.identifierAnalytical Biochemistry 343 (2005) 293–298
dc.identifier0003-2697
dc.identifierhttp://hdl.handle.net/10872/14054
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4947694
dc.descriptionIn this work, we report an alternative assay for the determination of the inhibitory eVect on monoamine oxidase B (MAO-B) activity of probe compounds. Enzyme MAO-B exhibits Xuorescence emissions when it is excited at 412 nm. Using an inexpensive blue LED-like excitation source, we measured the quenching of Xuorescence intensity of MAO-B enzyme during the reaction with inhibitors. The applicability of the procedure is demonstrated by assays with L-deprenyl and berberine as inhibitors through the use of Xuorescence studies. The IC50 values of L-deprenyl and berberine were 0.04 and 90 M, respectively. The KI values were 0.020 and 47 M for L-deprenyl and berberine, respectively. These IC50 and KI values were similar to the values obtained with a standard method. These results demonstrate the feasibility of this method as an alternative to follow the inhibitory eVect on MAO-B.
dc.languageen_US
dc.publisherAnalytical Biochemistry
dc.subjectMAO-B
dc.subjectLED FLUORESCENCE
dc.subjectBERBERINE
dc.titleLED Xuorescence spectroscopy for direct determination of monoamine oxidase B inactivation
dc.typeArticle


Este ítem pertenece a la siguiente institución