摘要:
A method for labeling &bgr;-amyloid plaques and neurofibrillary tangles in vivo and in vitro, comprises contacting a compound of formula (I): with mammalian tissue. In formula (I), R1 is selected from the group consisting of —C(O)-alkyl, —C(O)-alkylenyl-R4, —C(O)O-alkyl, —C(O)O-alkylenyl-R4, —C═C(CN)2-alkyl, —C═C(CN)2-alkylenyl-R4, R4 is a radical selected from the group consisting of alkyl, substituted alkyl, aryl and substituted aryl; R5 is a radical selected from the group consisting of —NH2, —OH, —SH, —NH-alkyl, —NHR4, —NH-alkylenyl-R4, —O-alkyl, —O-alkylenyl-R4, —S-alkyl, and —S-alkylenyl-R4; R6 is a radical selected from the group consisting of —CN, —COOH, —C(O)O-alkyl, —C(O)O-alkylenyl-R4, —C(O)-alkyl, —C(O)-alkylenyl-R4, —C(O)-halogen, —C(O)NH, —C(O)NH-alkyl, —C(O)NH-alkylenyl-R4; R7 is a radical selected from the group consisting of O, NH, and S; and R8 is N, O or S. R2 and R3 are each independently selected from the group consisting of alkyl and alkylenyl-R10, wherein R10 is selected from the group consisting of —OH, —OTs, halogen, spiperone, spiperone ketal and spiperone-3-yl. Alternatively, R2 and R3 together form a heterocyclic ring, optionally substituted with at least one radical selected from the group consisting of alkyl, alkoxy, OH, OTs, halogen, alkylenyl-R10, carbonyl, spiperone, spiperone ketal and spiperone-3-yl. In the compounds of formula (I), one or more of the hydrogen, halogen or carbon atoms can, optionally, be replaced with a radiolabel.
摘要:
Non-invasive measurements of physiological chemicals such as glucose are made using infrared radiation and a signal processing system that permits the construction of a device suited for home use. The level of a selected physiological chemical in a test subject is determined in a non-invasive and quantitative manner by a method comprising the steps of: (a) irradiating a portion of the test subject with near-infrared radiation such that the radiation is transmitted through or reflected from the test subject; (b) collecting data concerning the transmitted or reflected infrared radiation using a detector; (c) digitally filtering the collected data to isolate a portion of the data indicative of the physiological chemical; and (d) determining the amount of physiological chemical in the test subject by applying a defined mathematical model to the digitally filtered data. The data collected may be in the form of an absorbance spectrum, i.e., a representation of the variation in absorbance as a function of wavelength; or in the form of an interferogram, i.e., a representation of infrared light intensity as a function of the retardation of the moving mirror in the interferometer, and thus of time.
摘要:
A method for labeling &bgr;-amyloid plaques and neurofibrillary tangles in vivo and in vitro, comprises contacting a compound of formula (I): with mammalian tissue. In formula (I), R1 is selected from the group consisting of —C(O)-alkyl, —C(O)-alkylenyl-R4, —C(O)O-alkyl, —C(O)O-alkylenyl-R4, —C═C(CN)2-alkyl, —C═C(CN)2-alkylenyl-R4 , R4 is a radical selected from the group consisting of alkyl, substituted alkyl, aryl and substituted aryl; R5, is a radical selected from the group consisting of —NH2, —OH, —SH, —NH-alkyl, —NHR4, —NH-alkylenyl-R4, —O-alkyl, —O-alkylenyl-R4, —S-alkyl, and —S-alkylenyl-R4; R6 is a radical selected from the group consisting of —CN, —COOH, —C(O)O-alkyl, —C(O)O-alkylenyl-R4, —C(O)-alkyl, —C(O)-alkylenyl-R4, —C(O)-halogen, —C(O)NH , —C(O)NH-alkyl, —C(O)NH-alkylenyl-R4; R7 is a radical selected from the group consisting of O, NH, and S; and R8 is N, O or S. R2 and R3 are each independently selected from the group consisting of alkyl and alkylenyl-R10, wherein R10 is selected from the group consisting of —OH, —OTs, halogen, spiperone, spiperone ketal and spiperone-3-yl. Alternatively, R2 and R3 together form a heterocyclic ring, optionally substituted with at least one radical selected from the group consisting of alkyl, alkoxy, OH, OTs, halogen, alkylenyl-R10, carbonyl, spiperone, spiperone ketal and spiperone-3-yl. In the compounds of formula (I), one or more of the hydrogen, halogen or carbon atoms can, optionally, be replaced with a radiolabel.
摘要:
Non-invasive measurements of physiological chemicals such as glucose in a test subject are made using infrared radiation and a signal processing system. The level of a selected physiological chemical in the test subject is determined in a non-invasive and quantitative manner by a method comprising the steps of: (a) irradiating a portion of the test subject with near infrared radiation; (b) collecting data concerning the irradiated light on the test subject; (c) digitally filtering the collected data to isolate a portion of the data indicative of the physiological chemical; and (d) determining the amount of physiolgocial chemical in the test subject by applying a defined mathematical model to the digitally filtered data. The collected data is in the form of either an absorbance spectrum or an interferogram.
摘要:
Radiolabeled tracers for sulfotransferases (SULTs), their synthesis, and their use are provided. Included are substituted phenols, naphthols, coumarins, and flavones radiolabeled with 18F, 123I, 124I, 125I, or 11C. Also provided are in vivo techniques for using these and other tracers as analytical and diagnostic tools to study sulfotransferase distribution and activity, in health and disease, and to evaluate therapeutic interventions.
摘要:
Compositions useful for labeling β-amyloid plaques and neurofibrillary tangles are provided. The compositions comprises compounds of formula (I): wherein R1 is selected from the group consisting of —C(O)-alkyl, —C(O)-alkylenyl-R4, —C(O)O-alkyl, —C(O)O-alkylenyl-R4, —C═C(CN)2-alkyl, —C═C(CN)2-alkylenyl-R4, wherein R4 is a radical selected from the group consisting of alkyl, substituted alkyl, aryl and substituted aryl; R5 is a radical selected from the group consisting of —NH2, —OH, —SH, —NH-alkyl, —NHR4, —NH-alkylenyl-R4, —O-alkyl, —O-alkylenyl-R4, —S-alkyl, and —S-alkylenyl-R4; R6 is a radical selected from the group consisting of —CN, —COOH, —C(O)O-alkyl, —C(O)O-alkylenyl-R4, —C(O)-alkyl, —C(O)-alkylenyl-R4, —C(O)-halogen, —C(O)NH-alkyl, —C(O)NH-alkylenyl-R4 and —C(O)NH2; R7 is a radical selected from the group consisting of O, NH, and S; and R8 is N, O or S; and R2 is selected from the group consisting of alkyl and alkylenyl-R10 and R3 is alkylenyl-R10, wherein R10 is selected from the group consisting of —OH, —OTs, halogen, spiperone, spiperone ketal, and spiperone-3-yl, or R2 and R3 together form a heterocyclic ring, optionally substituted with at least one radical selected from the group consisting of alkyl, alkoxy, OH, OTs, halogen, alkyl-R10, carbonyl, spiperone, spiperone ketal and spiperone-3-yl, and further wherein one or more of the hydrogen, halogen or carbon atoms are optionally replaced with a radiolabel.