Research Topics
| Onofre T DeJesusSummaryAffiliation: University of Wisconsin Country: USA Publications
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Detail Information
Publications
6-fluoroDOPA metabolism in rat striatum: time course of extracellular metabolitesO T DeJesus
Department of Medical Physics, University of Wisconsin Medical School, 1530 Medical Sciences Center, 1300 University Avenue, Madison, WI 53706, USA
Brain Res 877:31-6. 2000..These metabolic steps and their role in tracer kinetics are, thus, important factors to consider in ascribing physiologic significance to PET-derived measures...
Noninvasive assessment of aromatic L-amino acid decarboxylase activity in aging rhesus monkey brain in vivoO T DeJesus
Department of Medical Physics, University of Wisconsin Medical School Madison, Wisconsin 53706, USA
Synapse 39:58-63. 2001..Furthermore, comparison of results of this study with previous studies support the notion that the effect of aging in the dopamine system is different from that of MPTP-induced parkinsonism...
Effect of tetrabenazine on the striatal uptake of exogenous L-DOPA in vivo: a PET study in young and aged rhesus monkeysOnofre T DeJesus
Medical Physics Department, University of Wisconsin Medical School, 1530 Medical Sciences Center, 1300 University Avenue, Madison, WI 53706, USA
Synapse 44:246-51. 2002..Results also showed diminished responsivity of AAAD to TBZ challenge in aged monkey brain...
Sensory processing disorder in a primate model: evidence from a longitudinal study of prenatal alcohol and prenatal stress effectsMary L Schneider
University of Wisconsin Madison, Department of Kinesiology, 2175 Medical Sciences Center, 1300 University Avenue, Madison, WI 53706 1532, USA
Child Dev 79:100-13. 2008..Moreover, prenatal stress significantly increased overall withdrawal responses to repetitive tactile stimulation compared to no prenatal stress...
Moderate-level prenatal alcohol exposure alters striatal dopamine system function in rhesus monkeysMary L Schneider
Department of Kinesiology, The Harlow Center for Biological Psychology, University of Wisconsin Madison, Madison, Wisconsin 53706, USA
Alcohol Clin Exp Res 29:1685-97. 2005..In this study, we manipulated the timing of moderate-level alcohol exposure and compared the risk of adverse effects on striatal dopamine (DA) system function in rhesus monkeys...
Fetal dopamine receptor characteristics assessed in uteroRachel M Bartlett
Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin Madison, Madison, Wisconsin 53705, USA
J Cereb Blood Flow Metab 30:1437-40. 2010..The agreement between fetal striatal DVRs using maternal arterial blood and maternal and fetal cerebellum as input functions strongly supports our hypothesis that the conditions necessary for graphical analysis have been met...
Fetal dose estimates for (18)F-fluoro-L-thymidine using a pregnant monkey modelRachel M Bartlett
Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin Madison, Madison, Wisconsin 53705, USA
J Nucl Med 51:288-92. 2010..This study was undertaken to estimate-on the basis of biodistribution data obtained by PET/CT in pregnant rhesus monkeys-radiation absorbed dose to a human fetus administered (18)F-FLT...
A within-subject comparison of 6-[18F]fluoro-m-tyrosine and 6-[18F]fluoro-L-dopa in Parkinson's diseaseCatherine L Gallagher
William S Middleton Veterans Hospital, Madison, Wisconsin, USA
Mov Disord 26:2032-8. 2011..These results also imply that L-aromatic amino acid decarboxylase activity is a major determinant of clinical status...
Sensory processing disorders in a nonhuman primate model: evidence for occupational therapy practiceMary L Schneider
Department of Kinesiology, Occupational Therapy Program, University of Wisconsin Madison, 2175 Medical Sciences Center, 1300 University Avenue, Madison, WI 53706 1532, USA
Am J Occup Ther 61:247-53. 2007..Aversive responsiveness was associated with up-regulated striatal dopamine receptor binding measured with positron emission tomography...
Assessment of fetal brain uptake of paraquat in utero using in vivo PET/CT imagingRachel M Bartlett
Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin 53706, USA
Toxicol Sci 122:551-6. 2011....
PET Measurement of rCBF in the presence of a neurochemical tracerAlexander K Converse
Keck Laboratory for Functional Brain Imaging, University of Wisconsin, T 121 Waisman Center, 1500 N Highland Avenue, Madison, WI 53705, USA
J Neurosci Methods 132:199-208. 2004..Comparing consecutive 6 min scans, reproducibility of relative rCBF and striatal [18F]fallypride concentration were 9 and 8%, respectively...
A longitudinal study of motor performance and striatal [18F]fluorodopa uptake in Parkinson's diseaseCatherine L Gallagher
William S Middleton Memorial Veterans Hospital, Madison, WI 53792, USA
Brain Imaging Behav 5:203-11. 2011..These findings provide evidence that regional loss of nigrostriatal inputs to frontostriatal networks affects specific aspects of motor function...
Paraquat is excluded by the blood brain barrier in rhesus macaque: An in vivo pet studyRachel M Bartlett
Department of Medical Physics, University of Wisconsin School of Medicine and Public Health, 1005 Wisconsin Institutes of Medical Research, 1111 Highland Avenue, Madison, WI 53705, USA
Brain Res 1259:74-9. 2009..This acute exposure study found that paraquat is excluded from the brain by the blood brain barrier and thus does not readily support the causative role of paraquat exposure in idiopathic Parkinson's disease...
Time profile of cerebral [18F]6-fluoro-L-DOPA metabolites in nonhuman primate: implications for the kinetics of therapeutic L-DOPAChristopher J Endres
Department of Medical Physics, University of Wisconsin Medical School, Madison, WI 53706, USA
Front Biosci 9:505-12. 2004..These findings extend and confirm previous observations of FDOPA metabolites. The implications for the interpretation of FDOPA PET, particularly in terms of the availability of dopamine synthesized from therapeutic L-DOPA, are discussed...
Localization of trapping of 6-[(18)F]fluoro-L-m-tyrosine, an aromatic L-amino acid decarboxylase tracer for PETW D Brown
Department of Radiology, University of Wisconsin Madison, USA
Synapse 34:111-23. 1999..This may be especially important in diseases or experimental states in which dopaminergic neurons are selectively reduced, and may allow for the study of nondopaminergic neuronal systems in vivo with this tracer...
Aromatic L-amino acid decarboxylase turnover in vivo in rhesus macaque striatum: a microPET studyO T DeJesus
Medical Physics, University of Wisconsin Medical School, 1530 Medical Sciences Center, 1300 University Avenue, Madison, WI 53706, USA
Brain Res 1054:55-60. 2005..These findings show that normal movement and behavior do not depend on complete recovery of AAAD function but likely on pre-synaptic and post-synaptic compensatory mechanisms...
Aromatic L-amino acid decarboxylase (AAAD) activity in rhesus macaque striatum after MAO-B inhibition by Ro 16-6491O T DeJesus
Department of Medical Physics, University of Wisconsin Medical School, Madison, Wisconsin 53706, USA
Synapse 56:54-6. 2005
Positron-emitting resin microspheres as surrogates of 90Y SIR-Spheres: a radiolabeling and stability studyMiguel A Avila-Rodriguez
Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin, Madison, WI 53706, USA
Nucl Med Biol 34:585-90. 2007..However, only resins labeled with (86)Y and (89)Zr proved to have the in vivo stability required for clinical applications...
Aromatic L-amino acid decarboxylase (AAAD) inhibitors as carcinoid tumor-imaging agents: synthesis of 18F-labeled alpha-fluoromethyl-6-fluoro-m-tyrosine (FM-6-FmT)D Murali
Department of Medical Physics, University of Wisconsin Medical School, 1530 Medical Sciences Center, 1300 University Avenue, Madison, WI 53706, USA
Appl Radiat Isot 59:237-43. 2003..Since FM-6-FmT lacks the catechol moiety, it is expected to be better than FMDOPA since it is not a substrate for catechol-O-methyltransferase...
Production of 34m Cl and 38 Cl via the (d,α) reaction on 36 Ar and nat Ar gas at 8.4 MeVJonathan W Engle
University of Wisconsin, Department of Medical Physics, 1111 Highland Avenue, Madison, WI 53705, USA
Appl Radiat Isot 69:75-9. 2011..Production yields, cyclotron target development, cryo-recovery of enriched gases, and nucleophilic chemistry of a model compound are described...
The impact of prenatal stress, fetal alcohol exposure, or both on development: perspectives from a primate modelMary L Schneider
Department of Kinesiology, 2175 Medical Science Center, 1300 University Avenue, Madison, WI 53706, USA
Psychoneuroendocrinology 27:285-98. 2002..Fetal alcohol exposed monkeys also showed increased HPA axis activity in response to stressful conditions. Finally, altered patterns of alcohol consumption during adolescence were associated with prenatal stress...
Synthesis of [64Cu]Cu-NOTA-Bn-GE11 for PET imaging of EGFR-rich tumorsOnofre T DeJesus
School of Medicine and Public Health, University of Wisconsin Madison, B1316 Wisconsin Institutes for Medical Research WIMR, Madison, WI 53705, USA
Curr Radiopharm 5:15-8. 2012..To enable the exploration of this possibility, positron emitting [64Cu]Cu-NOTA-Bn-GE11 was prepared for further evaluation as PET EGFR imaging agent...
Prenatal stress, moderate fetal alcohol, and dopamine system function in rhesus monkeysA D Roberts
Department of Psychology, University of Wisconsin-Madison, Madison, WI 53706, USA
Neurotoxicol Teratol 26:169-78. 2004..The latter supports a hypothesis linking striatal function to behavioral inhibitory control...
