Search Results - "Hamill, Terence G."
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[¹⁸F]MK-9470, a positron emission tomography (PET) tracer for in vivo human PET brain imaging of the cannabinoid-1 receptor
Published in Proceedings of the National Academy of Sciences - PNAS (05-06-2007)“…[¹⁸F]MK-9470 is a selective, high-affinity, inverse agonist (human IC₅₀, 0.7 nM) for the cannabinoid CB1 receptor (CB1R) that has been developed for use in…”
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The relationship between glycine transporter 1 occupancy and the effects of the glycine transporter 1 inhibitor RG1678 or ORG25935 on object retrieval performance in scopolamine impaired rhesus monkey
Published in Psychopharmacology (01-02-2014)“…Reduced NMDA receptor functioning is hypothesized to underlie the cognitive and negative symptoms associated with schizophrenia. However, because direct…”
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Synthesis, characterization, and first successful monkey imaging studies of metabotropic glutamate receptor subtype 5 (mGluR5) PET radiotracers
Published in Synapse (New York, N.Y.) (15-06-2005)“…Three metabotropic glutamate receptor subtype 5 (mGluR5) PET tracers have been labeled with either carbon‐11 or fluorine‐18 and their in vitro and in vivo…”
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The synthesis and preclinical evaluation in rhesus monkey of [18F]MK-6577 and [11C]CMPyPB glycine transporter 1 positron emission tomography radiotracers
Published in Synapse (New York, N.Y.) (01-04-2011)“…Two positron emission tomography radiotracers for the glycine transporter 1 (GlyT1) are reported here. Each radiotracer is a propylsulfonamide‐containing…”
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Identification of an Orally Bioavailable, Potent, and Selective Inhibitor of GlyT1
Published in ACS medicinal chemistry letters (14-10-2010)“…Amalgamation of the structure−activity relationship of two series of GlyT1 inhibitors developed at Merck led to the discovery of a clinical candidate, compound…”
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Preclinical evaluation of [11C]L‐235 as a radioligand for Positron Emission Tomography cathepsin K imaging in bone
Published in Journal of labelled compounds & radiopharmaceuticals (01-04-2021)“…The cathepsin K (CatK) enzyme is abundantly expressed in osteoclasts, and CatK inhibitors have been developed for the treatment of osteoporosis. In our effort…”
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Species differences in mGluR5 binding sites in mammalian central nervous system determined using in vitro binding with [18 F]F-PEB
Published in Nuclear medicine and biology (01-11-2007)“…Abstract Binding of [18 F]3-fluoro-5-[(pyridin-3-yl)ethynyl]benzonitrile ([18 F]F-PEB) was evaluated in membranes and tissue sections prepared from rat, rhesus…”
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Characterization of the novel GlyT1 PET tracer [18F]MK-6577 in humans
Published in Synapse (New York, N.Y.) (01-01-2015)“…ABSTRACT Decreased glutamatergic neurotransmission is hypothesized to be involved in the pathophysiology of schizophrenia. Inhibition of glycine transporter…”
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(11)C-MK-8278 PET as a tool for pharmacodynamic brain occupancy of histamine 3 receptor inverse agonists
Published in The Journal of nuclear medicine (1978) (01-01-2014)“…The histamine 3 (H3) receptor is a presynaptic autoreceptor in the central nervous system that regulates the synthesis and release of histamine and modulates…”
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Kinetic analysis of the cannabinoid-1 receptor PET tracer [18F]MK-9470 in human brain
Published in European journal of nuclear medicine and molecular imaging (01-05-2010)“…Purpose Quantitative imaging of the type 1 cannabinoid receptor (CB1R) opens perspectives for many neurological and psychiatric disorders. We characterized the…”
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Comparative evaluation of two glycine transporter 1 radiotracers [11C]GSK931145 and [18F]MK-6577 in baboons
Published in Synapse (New York, N.Y.) (01-03-2016)“…SUV images summed from 30 to 45 min post injection of [11C]GSK931145 (A) and [18F]MK‐6577 (B) in coronal (left), transverse (middle) and sagittal (right)…”
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Quantification of the glycine transporter 1 in rhesus monkey brain using [18F]MK-6577 and a model-based input function
Published in NeuroImage (Orlando, Fla.) (01-02-2012)“…Glycine transporter 1 (GlyT1) inhibitors have emerged as potential treatments for schizophrenia due to their potentiation of NMDA receptor activity by…”
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Inverse agonist histamine H3 receptor PET tracers labelled with carbon-11 or fluorine-18
Published in Synapse (New York, N.Y.) (01-12-2009)“…Two histamine H3 receptor (H3R) inverse agonist PET tracers have been synthesized and characterized in preclinical studies. Each tracer has high affinity for…”
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18F-FPEB, a PET radiopharmaceutical for quantifying metabotropic glutamate 5 receptors: a first-in-human study of radiochemical safety, biokinetics, and radiation dosimetry
Published in The Journal of nuclear medicine (1978) (01-03-2013)“…Identification of safe and valid PET radioligands for metabotropic glutamate receptor, type 5 (mGluR5), is essential to measure changes in brain mGluR5 in…”
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Biodistribution and radiation dosimetry of [18F]F-PEB in nonhuman primates
Published in Nuclear medicine communications (01-10-2008)“…INTRODUCTIONThe metabotropic glutamate receptor subtype 5 (mGluR5) is distributed throughout the central nervous system (CNS), and has been suggested to be a…”
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Erratum to: Kinetic analysis of the cannabinoid-1 receptor PET tracer [18F]MK-9470 in human brain
Published in European journal of nuclear medicine and molecular imaging (01-05-2010)Get full text
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Discovery of N-{(1S,2S)-2-(3-Cyanophenyl)- 3-[4-(2-[18F]fluoroethoxy)phenyl]-1-methylpropyl}- 2-methyl-2-[(5-methylpyridin-2-yl)oxy]propanamide, a Cannabinoid-1 Receptor Positron Emission Tomography Tracer Suitable for Clinical Use
Published in Journal of medicinal chemistry (26-07-2007)“…The discovery of a structurally distinct cannabinoid-1 receptor (CB1R) positron emission tomography tracer is described. Starting from an acyclic amide CB1R…”
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PET Imaging Studies in Rhesus Monkey with the Cannabinoid-1 (CB1) Receptor Ligand [11C]CB-119
Published in Molecular imaging and biology (01-07-2009)“…Purpose The in vitro and in vivo evaluation of the selective, high affinity (human CB1 IC 50 0.49 nM) inverse agonist CB1R tracer [ 11 C]CB-119, a close analog…”
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Radiosynthesis of the HIV integrase inhibitor [18F]MK-0518 (Isentress)
Published in Journal of labelled compounds & radiopharmaceuticals (15-06-2010)“…The human immunodeficiency virus integrase inhibitor, [18F]MK‐0518, was prepared via a three‐step, one‐pot radiosynthesis. [18F]4‐Fluorobenzylamine was…”
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