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Transgenic mice that highly over-express a mutated human CuZn superoxide dismutase (SOD1) gene [gly93-->ala; TgN(SOD1-G93A)G1H line] found in some patients with familial ALS (FALS) have been shown to develop motor neuron disease that is characterized by motor neuron loss in the lumbar and cervical spinal regions and a progressive loss of motor activity. The(More)
The postischemic time course of amyloid protein precursor (APP), beta-amyloid protein (beta-AP), and apolipoprotein E (APO-E) immunoreactivity were examined in comparison to neuronal necrosis in the selectively vulnerable hippocampal CA1 region of gerbils subjected to 10 min of bilateral carotid occlusion-induced forebrain ischemia. Loss of 90% of the CA(More)
Recent studies have demonstrated the neuroprotective properties of the novel imidazoquinoline benzodiazepine receptor partial agonist, PNU-101017, in the gerbil forebrain ischemia model. The compound effectively reduces delayed post-ischemic (5 min bilateral carotid occlusion) hippocampal CA1 neuronal degeneration even when its administration is withheld(More)
PNU-101017 is a novel, imidazoquinoline amide and benzodiazepine receptor partial agonist that has high affinity for the GABAA receptor subtypes containing the alpha 1 and alpha 3 or alpha 5 subunits. At each of these receptors, the compound is a partial agonist with approximately 50% of the intrinsic activity of the full agonist diazepam. In view of the(More)
Transgenic mice that overexpress a mutated human CuZn superoxide dismutase (SOD1) gene (gly93-->ala) found in some patients with familial ALS (FALS) have been shown to develop motor neuron disease, as evidenced by motor neuron loss in the lumbar and cervical spinal regions and a progressive loss of voluntary motor activity. The mutant Cu,Zn SOD exhibits(More)
Studies were conducted to determine if treatment of mice with methamphetamine (METH) would produce a loss of dopaminergic cells in the substantia nigra. The number of TH+/Nissl-stained was significantly decreased in both Swiss-Webster (S-W) and C57bl mice (approx. cell loss of 40% and 45%, respectively) 5-8 days after treatment with METH. In these same mice(More)
The investigation of oxygen radical-induced lipid peroxidative neuronal damage in the context of acute and chronic neurodegenerative disorders has been largely limited to the use of ex vivo analytical methodologies. These are often fraught with sensitivity or specificity problems, or they are indirect. Furthermore, none of the analytical methods allow(More)
The human apolipoprotein E4 (ApoE4) isoform is associated with genetic risk for Alzheimer's disease. To assess the effects of different ApoE isoforms on amyloid plaque formation, human ApoE3 and ApoE4 were expressed in the brains of transgenic mice under the control of the human transferrin promoter. Mice were crossed with transgenic mice expressing human(More)
A brief period of bilateral carotid occlusion (BCO)-induced forebrain ischemia in gerbils triggers neuronal degeneration and the subsequent expression of amyloid precursor protein (APP), b-amyloid protein (b-AP), and apolipoprotein E (APO-E) in the selectively vulnerable CA1 region of the hippocampus. The increase in immunoreactivity is secondary to the(More)
Computer-assisted image analysis was used to establish the dose response of excitatory amino acid (EAA) analogs on the induction of cobalt accumulation within pyramidal and granule cell neurons in 400 microns slices of gerbil hippocampus. Slices were incubated 20 min at 22 degrees C in a solution containing 5 mM CoCl2 and 0-1,000 microM EAA analog. The(More)