The reactivity of retinal arterioles and venules to exogenous and endogenous adenosine was investigated in the newborn piglet eye in vivo. The retinal microcirculation of isoflurane-anesthetized newborn pigs was observed at 310x using videomicroscopy, and changes in the diameter of
Journal of neurochemistry, 60(2), 768-771 (1993-02-01)
The effects of the adenosine A1 agonist N6-cyclohexyladenosine (CHA) on MPTP-induced dopamine (DA) depletion in the striatum of C57BL/6 mice were studied. Twenty hours after a single injection of MPTP (30 mg/kg, s.c.), the toxin caused 62% depletion of striatal
The Journal of pharmacology and experimental therapeutics, 242(3), 882-887 (1987-09-01)
Caffeine, a nonselective adenosine receptor antagonist, 7-methyl-1,3-dipropylxanthine, a purported A2 selective antagonist and a 1,3-dipropyl-8-phenylxanthine amine congener (XAC), an A1 selective antagonist, were evaluated for their in vivo selectivity at A1 vs. A2 adenosine receptors. Blockade of the negative chronotropic
In vitro cellular & developmental biology : journal of the Tissue Culture Association, 28A(7-8), 529-536 (1992-07-01)
Presumptive astrocytes isolated from 10-day white Leghorn chick embryos, Factor VIII-positive human brain capillary endothelial cells, meningeal fibroblasts from 10-day chick embryos, Swiss mouse 3T3 cells, and human astrocytoma cell lines, SKMG-1 and U373, were rendered quiescent when placed in
Journal of medicinal chemistry, 32(6), 1231-1237 (1989-06-01)
The effects of 8-phenyl and 8-cycloalkyl substituents on the activity of theophylline, caffeine, 1,3-dipropylxanthine, 1,3-dipropyl-7-methylxanthine, 3-propylxanthine, and 1-propylxanthine at A1 adenosine receptors of rat brain and fat cells and at A2 adenosine receptors of rat pheochromocytoma PC12 cells and human
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