Zobrazeno 1 - 10
of 48
pro vyhledávání: '"J E, Holden"'
Autor:
D, Murali, T E, Barnhart, N T, Vandehey, B T, Christian, R J, Nickles, A K, Converse, J A, Larson, J E, Holden, M L, Schneider, O T, Dejesus
Publikováno v:
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine. 72
A simple synthesis of the dopamine transporter ligand [(18)F]FECNT with high radiochemical yield and short synthesis time, suitable for routine production is reported. Reaction of 2β-carbomethoxy-3β-(4-chlorophenyl)nortropane with [(18)F]2-fluoroet
Publikováno v:
Synapse (New York, N.Y.). 39(1)
The effect of aging on aromatic L-amino acid decarboxylase (AAAD) activity in rhesus monkey striatum was assessed in vivo using PET imaging. Two analogs of L-DOPA, 6-fluoro-m-tyrosine (FMT) and 6-fluoro-L-DOPA (FDOPA), were used to image rhesus monke
Publikováno v:
Synapse (New York, N.Y.). 38(2)
Studies of dopamine (DA) receptor binding in early parkinsonian patients, or in models of Parkinson's disease, have revealed a supersensitivity of the D2-like receptor subtype as compared to age-matched controls. The lack of upregulation in advanced
Autor:
C S, Lee, A, Samii, V, Sossi, T J, Ruth, M, Schulzer, J E, Holden, J, Wudel, P K, Pal, R, de la Fuente-Fernandez, D B, Calne, A J, Stoessl
Publikováno v:
Annals of neurology. 47(4)
Clinical symptoms of Parkinson's disease (PD) do not manifest until dopamine (DA) neuronal loss reaches a symptomatic threshold. To explore the mechanisms of functional compensation that occur in presynaptic DA nerve terminals in PD, we compared stri
Publikováno v:
Magnetic resonance in medicine. 43(1)
Undersampled projection reconstruction (PR) is investigated as an alternative method for MRA (MR angiography). In conventional 3D Fourier transform (FT) MRA, resolution in the phase-encoding direction is proportional to acquisition time. Since the PR
Autor:
G L, Chan, J E, Holden, A J, Stoessl, A, Samii, D J, Doudet, T, Dobko, K S, Morrison, M, Adam, M, Schulzer, D B, Calne, T J, Ruth
Publikováno v:
Journal of nuclear medicine : official publication, Society of Nuclear Medicine. 40(2)
The reproducibility of (+/-)-alpha-[11C] dihydrotetrabenazine (DTBZ) measures in PET was studied in 10 healthy human subjects, aged 22-76 y.The scan-to-scan variation of several measures used in PET data analysis was determined, including the radioac
Publikováno v:
Journal of nuclear medicine : official publication, Society of Nuclear Medicine. 39(11)
This article presents dosimetry based on the measurement of fluoro-DOPA activity in major tissues and in the bladder contents in humans after oral pretreatment with 100 mg carbidopa.Bladder activity was measured continuously by external probe and cal
Autor:
M E, Emborg, S Y, Ma, E J, Mufson, A I, Levey, M D, Taylor, W D, Brown, J E, Holden, J H, Kordower
Publikováno v:
The Journal of comparative neurology. 401(2)
Although the role of dopamine dysfunction is well established in Parkinson's disease, the effect of nigrostriatal degeneration on motor performance during normal aging is less well understood. In this study, aged rhesus monkeys (25-27 years old) disp
Autor:
B, Renstrom, S, Rommelfanger, C K, Stone, T R, DeGrado, K J, Carlson, E, Scarbrough, R J, Nickles, A J, Liedtke, J E, Holden
Publikováno v:
Journal of nuclear medicine : official publication, Society of Nuclear Medicine. 39(10)
To study the sensitivity of two fatty acid tracers to changes in beta-oxidation, the myocardial retention kinetics of 125I-iodine-15-(p-iodophenyl)-3(R,S)-methylpentadecanoic acid (BMIPP) and 14-18F-fluoro-6-thia-heptadecanoic acid (FTHA) were compar
Autor:
C K, Stone, R A, Pooley, T R, DeGrado, B, Renstrom, R J, Nickles, S H, Nellis, A J, Liedtke, J E, Holden
Publikováno v:
Journal of nuclear medicine : official publication, Society of Nuclear Medicine. 39(10)
The fatty acid tracer 14-18F-fluoro-6-thia-heptadecanoic acid (FTHA) is a metabolically trapped tracer of exogenous fatty acid utilization. The objectives of this study were to determine the relationship of FTHA uptake to changes in perfusion and fat