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4 ous fluorodihydroxyphenyl-l-alanine PET (18F-DOPA-PET) and resting state functional MRI (rs-fMRI).
6 rwent fluorodihydroxyphenyl-l-alanine ([18F]-DOPA) positron emission tomography to examine dopamine s
11 Furthermore, the covalent linkage induced by DOPA oxidation allows covalent capture of the aligned na
14 c acid condenses with imino compounds (cyclo-DOPA or its glucosyl derivatives), or amines and/or thei
15 ation and its subsequent conversion to cyclo-DOPA, CYP76AD6 uniquely exhibits only tyrosine hydroxyla
19 urface-binding l-3,4-dihydroxyphenylalanine (DOPA) groups, pCB-(DOPA)4, were applied onto a paper-bas
20 ic role of (18)F-3,4-dihydroxyphenylalanine (DOPA) PET/CT at the time of staging in children with neu
21 , apfp-1) with L-3,4-dihydroxyphenylalanine (DOPA)-containing and mannose-binding domains has been ch
22 ine (Lys, K) and 3,4-Dihydroxyphenylalanine (DOPA, Y) residues in the mussel foot proteins (Mfps) has
24 es, we have identified at least two distinct DOPA-based cross-linking pathways during byssus fabricat
26 osttranslationally modified amino acid dopa (DOPA) in mussel adhesion, catechol functional groups hav
27 sion of dipeptides containing Lys and either DOPA (KY) or phenylalanine (KF) shows that DOPA is stron
31 ross two independent cohorts underwent (18)F-DOPA PET scans to measure dopamine synthesis capacity (i
32 pocampal glutamate concentrations, and (18)F-DOPA PET was used to measure dopamine synthesis capacity
33 ng systems to (123)I-MIBG scanning and (18)F-DOPA PET/CT (i.e.,(123)I-MIBG WBS score and whole-body m
34 n chemotherapy, all patients underwent (18)F-DOPA PET/CT and (123)I-metaiodobenzylguanidine (MIBG) sc
36 ion-based analysis, the sensitivity of (18)F-DOPA PET/CT in detecting soft-tissue and bone or bone-ma
37 ion-based analysis, the sensitivity of (18)F-DOPA PET/CT in detecting soft-tissue and bone or bone-ma
43 psychosis and 14 controls) received an (18)F-DOPA Positron Emission Tomography scan to measure DSC (K
45 variate analysis, only posttherapeutic (18)F-DOPA WBMB (>7.5) was associated with progression-free su
46 ime-to-event analysis, posttherapeutic (18)F-DOPA WBMB remained the only risk factor associated with
47 -fluoro-3,4-dihydroxy-L-phenylalanine ((18)F-DOPA), involving the nucleophilic substitution of a diar
49 At 37 degrees C, the uptake of both (18)F-DOPA-H and (18)F-DOPA-L did not differ significantly dur
51 a the novel synthesis method, yielding (18)F-DOPA-H with a high specific activity (35,050 +/- 4,000 G
52 C, the uptake of both (18)F-DOPA-H and (18)F-DOPA-L did not differ significantly during a 60-min accu
53 several experiments with conventional (18)F-DOPA-L with a low specific activity (11 +/- 2 GBq/mmol).
56 iques (6-[fluoride-18]fluoro-levodopa [(18)F-DOPA] PET-CT and glucagon-like peptide 1 (GLP-1) recepto
57 e distribution volume ratio (EDVR) of [(18)F]DOPA influx rate to [(18)F]dopamine washout rate, an ind
59 was assessed as K(i)(cer) value using [(18)F]DOPA PET before and 6 weeks after antipsychotic disconti
60 Furthermore, they also underwent an [(18)F]DOPA PET scan to quantify striatal dopamine synthesis ca
62 To test this hypothesis, we performed [(18)F]DOPA positron emission tomography in 60 of the 87 partic
63 h striatal measures of dopamine using [(18)F]DOPA positron emission tomography, we show that higher p
64 matic state, we observed increases of [(18)F]DOPA uptake in the anterior putamen, [(11)C]raclopride b
65 CHR) for psychosis show elevations in [(18)F]DOPA uptake, an estimate of dopamine (DA) synthesis capa
66 dy the changes in dopamine synthesis ([(18)F]DOPA), dopamine D2/D3 receptors ([(11)C]raclopride), and
67 xy-6-[(18)F]-fluoro-l-phenylalanine ([(18)F]-DOPA) positron emission tomography (PET), we compared do
68 itself and other byssal proteins via Fe3(+)-DOPA complexes, and the mannose-binding domain interacts
69 We identified one dopamine synthesis gene, DOPA decarboxylase (DDC), as a suppressor of tau toxicit
71 pathogenic basiodiomycete forming an induced DOPA-melanin, Cryptococcus neoformans (CN); and the slow
72 es of l-carbidopa, which is known to inhibit DOPA decarboxylase (DDC), a key protein in Parkinson's d
78 confirmed increased Nptx2 expression after L-DOPA and its blockade by SL327 using quantitative RT-PCR
79 TP, depotentiation, and LTP restored after L-DOPA treatment but also disclose multifaceted synaptic a
81 zine, a 5-HT1A/B receptor agonist, against L-DOPA-induced dyskinesias in patients with Parkinson's di
82 l MOR1 levels and signaling and alleviates L-DOPA-induced dyskinetic movements in pituitary homeobox
91 ical parametric maps, indicating tDCS- and l-DOPA-induced activation, and >100 neuronal receptor gene
93 such as Huntington's disease, dystonia and l-DOPA-induced dyskinesia in Parkinson's disease are all c
97 1A and 5-HT1B receptors effectively blocks L-DOPA-induced dyskinesias in animal models of dopamine de
99 se dopaminergic neuron loss and severe but L-DOPA-responsive motor defects in mouse overexpression mo
102 dentified a molecular signature induced by L-DOPA in the dopamine-denervated striatum that is depende
105 Restoration of dopamine transmission by l-DOPA relieves symptoms of PD but causes severe side effe
108 KO mice was alleviated by donepezil and by l-DOPA, confirming an acetylcholine/dopamine deficit.
112 neurons become dysregulated during chronic L-DOPA administration and participate in the expression of
113 (6-OHDA) rendered dyskinetic with chronic L-DOPA treatment reveals a complex, Ras-GRF1 and pathway-i
117 ation of rapamycin with L-DOPA counteracts L-DOPA-induced dyskinesias in wild-type mice, but not in m
118 icient (DD) mice, which had received daily L-DOPA injections, could move effectively and even be hype
123 ine (DA) and L-3,4-dihydroxyphenylalanine (L-DOPA) on carbon nano-onion (CNO) modified electrodes as
124 40 years ago l-3,4-dihydroxyphenylalanine (l-DOPA) therapy has retained its role as the leading stand
125 from chronic L-3,4-dihydroxyphenylalanine (L-DOPA) treatment, but the physiological basis of these ch
126 use model of L-3,4-dihydroxyphenylalanine (L-DOPA)-induced dyskinesia (LID) in Parkinson's disease (P
127 involved in L-3,4-dihydroxyphenylalanine (L-DOPA)-induced dyskinesia (LID) in Parkinson's disease sh
128 sease and in l-3,4-dihydroxyphenylalanine (l-DOPA)-induced dyskinesia (LID), a common motor complicat
131 By enhancing availability of dopamine, L-DOPA improved processing and gait speed in older adults
133 epeated convergent acquisition of elevated l-DOPA 4,5-dioxygenase activity is consistent with recurre
134 se to polyphyletic occurrences of elevated l-DOPA 4,5-dioxygenase activity, accompanied by convergent
135 Glucose stimulation significantly enhances L-DOPA uptake, leading to increased DA release and GSIS re
136 and R1441C mutant transgenic rats exhibit L-DOPA-responsive motor dysfunction, impaired striatal dop
142 haracterised 23 distinct DODA proteins for l-DOPA 4,5-dioxygenase activity, from four betalain-pigmen
146 HP in a single enzyme system directly from L-DOPA both in vitro and in vivo, at higher yields than th
149 how it affects cholinergic interneurons in L-DOPA induced dyskinesia, we used D5R knockout mice that
150 over, we found that expression of Nurr1 in l-DOPA naive hemi-parkinsonian rats resulted in the format
153 cacy decreases, and side effects including l-DOPA-induced dyskinesia (LID) increase, affecting up to
154 escribe a three-round screen for increased L-DOPA production in S. cerevisiae using FACS enrichment o
155 ses total heme concentration and increases L-DOPA production, using dopamine measurement as a proxy.
156 atalyzes the conversion of l-tyrosine into l-DOPA, which is the rate-limiting step in the synthesis o
158 In contrast, administration of 200 mg/kg L-DOPA significantly increased the amplitude of evoked dop
159 ins produced 0.91 g/L tyrosine or 0.41 g/L l-DOPA from 22.5 g/L unpurified SSW-derived chitin hydroly
160 nd even be hyperactive 72 h after the last L-DOPA injection when dopamine was almost completely deple
161 y boosting dopamine levels using levodopa (l-DOPA) as human subjects made economic decisions and repe
162 ia (LID) develops after repeated levodopa (l-DOPA) exposure in Parkinson disease patients and remains
164 study examined whether carbidopa/levodopa (L-DOPA) monotherapy increased dopamine availability, incre
165 e dose of the dopamine precursor levodopa (l-DOPA) on mesostriatal fractional amplitude of low-freque
167 tion of dopamine transmission by levodopa (L-DOPA) relieves motor symptoms of PD but often causes dis
170 in cultured neurons and causes a PD-like, l-DOPA-responsive motor phenotype in transgenic mice, was
172 of adeno-associated viral vector-mediated l-DOPA delivery to the putamen in 1-methyl-4-phenyl-1,2,3,
173 f-principle for continuous vector-mediated l-DOPA synthesis as a novel therapeutic strategy for Parki
174 n impulsive choice, we administered 150 mg L-DOPA to 87 healthy adults in a randomized, placebo-contr
178 Our findings suggest that D5R can modulate L-DOPA induced dyskinesia and is a critical activator of C
180 combination with a suprathreshold dose of L-DOPA (Sinemet(R)) in 22 patients with Parkinson's diseas
183 ctrode fouling caused by polymerization of L-DOPA and endogenous catecholamines on the electrode surf
184 an insects demonstrated that low levels of l-DOPA are rapidly metabolized into intermediates by pheno
185 iable tool that allows a better measure of L-DOPA augmented dopamine release in vivo, measured using
189 This novel finding suggests the utility of l-DOPA in the field of implantable medical devices, such a
194 inistration of caffeine with a low dose of l-DOPA reduces dyskinesia in animals with striatopallidal
198 e impact of CK2 ablation on the effects of l-DOPA treatment in the unilateral 6-OHDA lesioned mouse m
199 mical studies investigating the effects of L-DOPA treatment on electrically evoked dopamine release h
201 as enabled rapid and reliable detection of L-DOPA's effects on striatal dopamine signaling in intact
206 iatonigral neurons reduces the severity of l-DOPA-induced dyskinesia (LID), a finding that correlates
208 oprazine caused a significant reduction of L-DOPA-induced dyskinesias on area under the curves of Cli
211 ts, we generated a knock-in mouse model of l-DOPA-responsive dystonia (DRD) mice that recapitulates t
217 ng frequency significantly increased in ON L-DOPA dyskinetic 6-hydroxydopamine-lesioned rats, suggest
220 itron emission tomography followed by open L-DOPA for 3 weeks (1 week each of 150 mg, 300 mg, and 450
221 th time, however, the shortcomings of oral l-DOPA treatment have become apparent, particularly the mo
222 Therefore, targeting beta-arrestins in PD L-DOPA therapy might prove to be a desirable approach.
224 plicated in 3,4-dihydroxy-l-phenylalanine (L-DOPA)-induced dyskinesia (LID), a motor complication aff
225 amine function (dihydroxy-L-phenylalanine; L-DOPA) reduces the impact of valence on information-seeki
227 imating equations tested the pre- and post-L-DOPA differences in processing and gait speed measures,
228 gic signaling using the dopamine precursor l-DOPA (l-3,4-dihydroxyphenylalanine) or dopamine receptor
229 we assessed the roles of the DA precursor L-DOPA in beta-cell DA synthesis and release in conjunctio
230 e by examining the effect of its precursor L-DOPA on the choices of healthy human participants in an
231 , administration of the dopamine precursor l-DOPA reversed the presynaptic deficit by restoring the b
232 assessed the ability of NM-MRI to predict L-DOPA treatment response in a subset of these patients (N
235 nd treatment whereby, among lesioned rats, l-DOPA given acutely (1 d) or chronically (14-16 d) reduce
236 Parkinson's disease patients will receive l-DOPA and eventually develop hyperkinetic involuntary mov
237 ion of delay more strongly after receiving L-DOPA, whereas the opposite was detected for those with l
243 c slices reveal that both in vivo systemic l-DOPA administration and in vitro exposure to dopamine ca
249 Together, these findings demonstrate that l-DOPA induces widespread changes to striatal DNA methylat
250 erall, the present study demonstrates that l-DOPA-induced dyskinesia is associated with increased M1
251 microinjections into M1 demonstrated that l-DOPA-induced dyskinesia was reduced by M1 infusion of a
255 The enhanced behavioral sensitization to l-DOPA in TAAR1 KO mice was paralleled by increased phosph
257 y major roles in the cellular responses to l-DOPA in the striatum, these findings prompted us to exam
259 taining neurons have a reduced response to L-DOPA on the therapeutic parameters, but develop dyskinet
261 e striatopallidal knock-out in response to l-DOPA treatment.Our work shows, in a rodent model of PD,
262 dSPNs exacerbated dyskinetic responses to L-DOPA, while stimulation of iSPNs inhibited these respons
268 imultaneous quantification of unconjugated l-DOPA, catecholamines, and metanephrines in plasma by LC-
271 udying the molecular mechanisms underlying L-DOPA therapy and also promises to benefit a wide variety
273 a more refined dopaminergic therapy where l-DOPA is delivered continuously at the site where it is n
275 ocessing and gait speed were observed with L-DOPA (450-mg dose: processing speed factor score effect
276 term treatment of Parkinson's disease with l-DOPA almost always leads to the development of involunta
277 NM-MRI signal 3 weeks post-treatment with L-DOPA compared to baseline (200 of 1807 SN-VTA voxels; P(
278 reover, coadministration of rapamycin with L-DOPA counteracts L-DOPA-induced dyskinesias in wild-type
279 te of ChIs, whereas chronic treatment with L-DOPA of lesioned mice increases baseline ChI firing rate
283 gly, repeated M2 stimulation combined with l-DOPA treatment produced an unanticipated improvement in
284 their sustantia nigra or by treatment with l-DOPA, suggesting that alpha-SYN regulates dopamine avail
288 h 1 mg/g of the DDC inhibitor L-alpha-Methyl-DOPA and 0.75 mg/g of the TH inhibitor 3-iodo-tyrosine (
290 loading studies revealed that the density of DOPA on the surface of the nanoscale MOF correlates to t
291 Here, we investigated the various fates of DOPA residues in proteins comprising mussel byssus fiber
292 ver, the complex topological relationship of DOPA and Lys as well as the interfacial adhesive roles o
293 rotonin, and trace amines, relies in part on DOPA decarboxylase (DDC, AADC), an enzyme that is requir
294 ion converts p-Tyr to protein-bound dopa (PB-DOPA) via a tyrosinyl radical intermediate, thereby alte
295 4-dihydroxyphenylalanine (DOPA) groups, pCB-(DOPA)4, were applied onto a paper-based sensor surface v
298 300 nM 1,2-dioleoyl-sn-glycero-3-phosphate (DOPA), but not the control 1,2-dioleoyl-sn-glycero-3-pho
300 een the byssus and soft tissue, that is, the DOPA-containing domain interacts with itself and other b