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In six vervet monkeys, presynaptic striatal dopamine function was assessed longitudinally by [18F]fluoro-L-DOPA (FDOPA)-positron emission tomography (PET) after administration (2 x 2 mg/kg, i.m., 4 h apart) of either amphetamine (Amp), n = 3, or methamphetamine (MeAmp), n = 3. At 1-2 weeks postdrug, both Amp and MeAmp exposure effected similar decreases(More)
UNLABELLED Small-animal PET scanning with (18)F-FDG is increasingly used in murine models of human diseases. However, the impact of dietary conditions, mode of anesthesia, and ambient temperature on the biodistribution of (18)F-FDG in mice has not been systematically studied so far. The aim of this study was to determine how these factors affect assessment(More)
Alu repeated sequences arising in DNA of the human lineage during about the last 30 million years are closely similar to a modern consensus. Alu repeats arising at earlier times share correlated blocks of differences from the current consensus at diagnostic positions in the sequence. Using these 26 positions, we can recognize four subfamilies and the older(More)
A chronic 10-day amphetamine (Amp) protocol was used to induce significant long-term decrements of the striatal [18F]fluoro-L-DOPA influx rate constant (FDOPA Ki) in the vervet monkey. Longitudinal FDOPA-positron emission tomography (PET) assessment in Amp-treated subjects subsequently revealed a gradual recovery of striatal dopamine function: FDOPA Ki(More)
We have constructed a three-dimensional (3D) whole body mouse atlas from coregistered x-ray CT and cryosection data of a normal nude male mouse. High quality PET, x-ray CT and cryosection images were acquired post mortem from a single mouse placed in a stereotactic frame with fiducial markers visible in all three modalities. The image data were coregistered(More)
The acute and long-term effects of chronic amphetamine administration on the striatal dopamine system in monkeys were assessed with 6-[18F]fluoro-L-DOPA (FDOPA) and positron emission tomography (PET). Vervet monkeys (Cerecopithecus aethiops) were administered amphetamine doses, i.m., that increased from 4 mg/kg/d to 18 mg/kg/d over a 10 day period.(More)
OBJECTIVE β-Cells that express an imaging reporter have provided powerful tools for studying β-cell development, islet transplantation, and β-cell autoimmunity. To further expedite diabetes research, we generated transgenic C57BL/6 "MIP-TF" mice that have a mouse insulin promoter (MIP) driving the expression of a trifusion (TF) protein of three imaging(More)
Microreactor technology has shown potential for optimizing synthetic efficiency, particularly in preparing sensitive compounds. We achieved the synthesis of an [(18)F]fluoride-radiolabeled molecular imaging probe, 2-deoxy-2-[18F]fluoro-D-glucose ([18F]FDG), in an integrated microfluidic device. Five sequential processes-[18F]fluoride concentration, water(More)
Through restoration of the light source information in small animals in vivo, optical molecular imaging, such as fluorescence molecular tomography (FMT) and bioluminescence tomography (BLT), can depict biological and physiological changes observed using molecular probes. A priori information plays an indispensable role in tomographic reconstruction. As a(More)
Many research institutions have a full suite of preclinical tomographic scanners to answer biomedical questions in vivo. Routine multi-modality imaging requires robust registration of images generated by various tomographs. We have implemented a hardware registration method for preclinical imaging that is similar to that used in the combined positron(More)