Research Topics
| R DawsonSummaryAffiliation: University of Florida Country: USA Publications
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Publications
The cytoprotective role of taurine in exercise-induced muscle injuryR Dawson
Department of Pharmacodynamics, College of Pharmacy, JHMHC Box 100487, University of Florida, Gainesville, FL 32610, U S A
Amino Acids 22:309-24. 2002..In summary, taurine supplementation or taurine depletion had measurable cytoprotective actions to attenuate exercise-induced injury...
Glutamate efflux from rat brain slices and cultures: a comparison of the depolarizing agents potassium, 4-aminopyridine, and veratrineT A Patterson
Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville 32610, USA
Neurochem Res 20:225-32. 1995..This data suggest that both GLU release and uptake are modulated in a regionally selective manner, and that commonly used depolarizing agents affect not only calcium-dependent neuronal release, but also uptake and glial responses...
Endogenous excitatory amino acid release from brain slices and astrocyte cultures evoked by trimethyltin and other neurotoxic agentsR Dawson
Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville 32610, USA
Neurochem Res 20:847-58. 1995..TMT at high concentrations also produced a delayed increase in glial GLU efflux. These studies suggest that excitotoxic mechanisms may contribute to TMT-induced neurotoxicity...
Cysteine sulfinate decarboxylase and cysteine dioxygenase activities do not correlate with strain-specific changes in hepatic and cerebellar taurine content in aged ratsB Eppler
Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville 32610, USA
Mech Ageing Dev 110:57-72. 1999..These results suggest that a decline in hepatic de novo taurine biosynthesis might be partially responsible for a reduction in tissue taurine content in F344 rats...
Neural-renal interactions in the hypertension induced by papillary necrosis: role of dietary salt intakeR Dawson
Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville
Pharmacology 40:42-53. 1990..The primary defect in BEA hypertension appears to be the lack of circulating antihypertensive lipids that attenuate the ability of salt loads to simulate sympathetic nervous system activity...
Effects of dietary taurine supplementation or deprivation in aged male Fischer 344 ratsR Dawson
Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville 32610, USA
Mech Ageing Dev 107:73-91. 1999..These studies suggest that advanced aging results in a taurine-deficient state that can be corrected by dietary supplementation...
Taurine is a weak scavenger of peroxynitrite and does not attenuate sodium nitroprusside toxicity to cells in cultureT R Mehta
Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, USA
Amino Acids 20:419-33. 2001..Combination treatments with taurine and SNP appeared to interact in an additive fashion for both cell proliferation and neurotoxic actions. It appears unlikely that taurine is a major endogenous scavenger of peroxynitrite...
Cytoprotective effect of taurine against hypochlorous acid toxicity to PC12 cellsS Kearns
Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, USA
Adv Exp Med Biol 483:563-70. 2000..Since myeloperoxidase expression in the CNS is increased by ischemia, one function of taurine released during an ischemic event may be to scavenge HOCl and provide neuroprotection...
Endogenous GABA release is reduced in the striatum of cocaine-sensitized ratsB J Jung
Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, Florida 32610, USA
Synapse 34:103-10. 1999..These data are consistent with an overall decrease in GABA transmission, both pre- and postsynaptically, in the striatum of sensitized rats, which could contribute to enhanced striatal output and behavioral sensitization...
An age-related decline in striatal taurine is correlated with a loss of dopaminergic markersR Dawson
Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville 32610, USA
Brain Res Bull 48:319-24. 1999..These studies suggest (1) a link between age-related declines in striatal dopamine and taurine and (2) that NGF-induced improvement in spatial learning is not related to mechanisms involving changes in taurine or glutamate content...
Effects of high salt diets and taurine on the development of hypertension in the stroke-prone spontaneously hypertensive ratR Dawson
Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville 32610, USA
Amino Acids 19:643-65. 2000..Taurine supplementation showed cardioprotective and renoprotective effects in SPSHR given high salt diets...
Dietary taurine manipulations in aged male Fischer 344 rat tissue: taurine concentration, taurine biosynthesis, and oxidative markersB Eppler
Department of Pharmacodynamics, College of Pharmacy, University of Florida, JHMHC Box 100487, Gainesville, FL 32610, USA
Biochem Pharmacol 62:29-39. 2001..Our study indicates that a decline in TAU content may exacerbate oxidative stress in aged rats, which can be reversed by dietary TAU supplementation...
Neurochemical and neurobehavioral effects of neonatal administration of beta-N-methylamino-L-alanine and 3,3'-iminodipropionitrileR Dawson
Department of Pharmacodynamics, College of Pharmacy, JHMHC, University of Florida, Gainesville 32610, USA
Neurotoxicol Teratol 20:181-92. 1998..Neonatal exposure to either IDPN or BMAA resulted in permanent changes in adult neurochemistry that may be related to reorganizational effects induced by toxin-mediated neuroplasticity in developing neurons...
Effects of sulfur containing amino acids on iron and nitric oxide stimulated catecholamine oxidationM Biasetti
Department of Pharmacodynamics, College of Pharmacy, JHMHC Box 100487, University of Florida, Gainesville, FL 32610, U.S.A
Amino Acids 22:351-68. 2002..Our results show that endogenous sulfur containing amino acids, like taurine, could serve a protective role to reduce cellular damage associated with both NO and metal-stimulated catecholamine oxidation...
Presynaptic dopaminergic properties of differentiated mouse embryonic stem cellsY Nakano
Department of Pharmacology, College of Pharmacy, University of Florida, P.O. Box 100267, 1600 SW Archer, Gainesville, FL 32610, USA
Neurochem Int 45:1067-73. 2004..These results demonstrate that differentiated ES cells have the presynaptic functions for maintaining dopaminergic homeostasis, which may be essential for their long-term use in restoring CNS levels of this transmitter...
