Search Results - "Osborne, P G"

State-dependent regulation of cortical blood flow and respiration in hamsters: response to hypercapnia during arousal from hibernation by Osborne, P G, Hashimoto, M

“…Hibernation is characterised by a global reduction of metabolism, body temperature and blood flow, while arousal from hibernation is achieved by the reversal…”
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Sympathetic alpha-adrenergic regulation of blood flow and volume in hamsters arousing from hibernation by Osborne, P G, Sato, J, Shuke, N, Hashimoto, M

“…Mammals arousing from hibernation display pronounced regional heterothermy, where the thoracic and head regions warm faster than the abdominal and hindlimb…”
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Plastic Film Carbon Electrodes:  Enzymatic Modification for On-Line, Continuous, and Simultaneous Measurement of Lactate and Glucose Using Microdialysis Sampling by Osborne, P. G, Niwa, O, Yamamoto, K

“…Ring and split-disk plastic film carbon electrodes (PFCEs) were fabricated for use in thin-layer radial flow cells which were coupled to a microdialysis…”
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Electrocatalytic reduction of dioxygen on hemin based carbon paste electrode by ZHENG, N, ZENG, Y, OSBORNE, P. G, LI, Y, CHANG, W, WANG, Z

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Ascorbate and glutathione regulation in hibernating ground squirrels by Drew, Kelly L., Osborne, Peter G., Frerichs, Kai U., Hu, Yong, Koren, Risa E., Hallenbeck, John M., Rice, Margaret E.

“…Ground squirrels withstand up to 90% reductions in cerebral blood flow during hibernation as well as rapid reperfusion upon periodic arousals from torpor…”
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On-line, continuous measurement of extracellular striatal glucose using microdialysis sampling and electrochemical detection by Osborne, P.G, Niwa, O, Kato, T, Yamamoto, K

“…A sensitive, enzymatic glucose electrode was coupled with the microdialysis sampling technique to enable the continuous, on-line measurement of dialysate…”
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A GABAergic mechanism in the medial septum influences cortical arousal and locomotor activity but not a previously learned spatial discrimination task by Osborne, P G

“…The effect of perfusion of the medial septum (MS) with artificial cerebrospinal fluid (CSF) on three consecutive daily trials was assessed on the amount of…”
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Hippocampal and striatal blood flow during behavior in rats: Chronic laser doppler flowmetry study by OSBORNE, P. G

“…A technique is described for the chronic measurement of cerebral blood flow in conscious, unrestrained rodents, utilizing laser doppler flowmetry (LDF)…”
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Acute versus chronic haloperidol: relationship between tolerance to catalepsy and striatal and accumbens dopamine, GABA and acetylcholine release by Osborne, P G, O'Connor, W T, Beck, O, Ungerstedt, U

“…Using in vivo microdialysis, changes in extracellular dorsolateral striatum and nucleus accumbens dopamine, GABA and acetylcholine following acute and chronic…”
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Evidence for a Substrate of Neuronal Plasticity Based on Pre- and Postsynaptic Neurotensin-Dopamine Receptor Interactions in the Neostriatum by Fuxe, Kjell, O'Connor, William T., Antonelli, Tiziana, Osborne, Peter G., Tanganelli, Sergio, Agnati, Luigi F., Ungerstedt, Urban

“…The major mechanism underlying the neuroleptic action of the tridecapeptide neurotensin (NT) appears to be an interaction with dopamine receptor mechanisms…”
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An in vivo microdialysis characterization of extracellular dopamine and GABA in dorsolateral striatum of awake freely moving and halothane anaesthetised rats by Osborne, P G, O'Connor, W T, Drew, K L, Ungerstedt, U

“…This study describes the results of a systematic characterization of extracellular dopamine (DA) and gamma-aminobutyric acid (GABA) recovered from dorsolateral…”
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Determination of striatal extracellular γ-aminobutyric acid in non-hibernating and hibernating Arctic ground squirrels using quantitative microdialysis by Osborne, P.G, Hu, Y, Covey, D.N, Barnes, B.N, Katz, Z, Drew, K.L

“…This study determined extracellular concentrations of γ-aminobutyric acid ([GABA] ecf) in striatum of non-hibernating and hibernating arctic ground squirrels…”
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Effect of varying the ionic concentration of a microdialysis perfusate on basal striatal dopamine levels in awake rats by Osborne, P G, O'Connor, W T, Ungerstedt, U

“…In vivo microdialysis was used to study the effects of Ca2+, Mg2+, and K+ ion concentrations on basal extracellular (EC) levels of striatal DA and metabolites…”
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Tolerance to catalepsy following chronic haloperidol is not associated with changes in GABA release in the globus pallidus by O'Connor, W.T., Osborne, P.G., Ungerstedt, U.

“…In vivo microdialysis was used to investigate the relationship between extracellular GABA levels in rat globus pallidus following acute (1st injection) and…”
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In vivo characterisation of extracellular dopamine, GABA and acetylcholine from the dorsolateral striatum of awake freely moving rats by chronic microdialysis by Osborne, P G, O'Connor, W T, Kehr, J, Ungerstedt, U

“…Basal extracellular (EC) DA, 3,4-dihydroxyphenylacetic acid (DOPAC), homovanillic acid (HVA), gamma aminobutyric acid (GABA) and acetylcholine (ACh) were…”
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Brain antioxidant levels in hamsters during hibernation, arousal and cenothermia by Osborne, Peter G., Hashimoto, Masaaki

“…Warming from hibernation to cenothermia involves intense metabolic activity coincident with large fluxes in blood flow and is considered to be a period of…”
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Subfornical organ lesion decreases sodium appetite in the sodium-depleted rat by Weisinger, R S, Denton, D A, Di Nicolantonio, R, Hards, D K, McKinley, M J, Oldfield, B, Osborne, P G

“…The effect of subfornical organ (SFO) lesion on various models of ingestive behaviour was investigated in rats. Intake of water after 24 h water deprivation or…”
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Angiotensin and salt appetite of BALB/c mice by Denton, D A, Blair-West, J R, McBurnie, M, Osborne, P G, Tarjan, E, Williams, R M, Weisinger, R S

“…The influence of systemic or intracerebroventricular (icv) administration of angiotensin II on the intakes of NaCl solution, water, and food was investigated…”
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Behavioral activation by stimulation of a GABAergic mechanism in the preoptic area of rat by Osborne, P G, Mataga, N, Onoe, H, Watanabe, Y

“…The locomotor activity and grooming of conscious freely moving rats were recorded during a 60-min unilateral perfusion of the preoptic area with neuroactive…”
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Determination in vivo of newly synthesized gene expression in hamsters during phases of the hibernation cycle by Osborne, P G, Gao, B, Hashimoto, M

“…This study measured in vivo synthesis of total RNA and protein from cortex, cerebellum and midbrain/brainstem and 6 major organs from Syrian hamsters…”
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