Christine Beiswanger

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Cellular heterogeneity and structural complexity of the nervous system, coupled with regional and cellular differences in the metabolic capabilities of neurons, glia and other non-neuronal elements, may underlie the selective cellular involvement following exposure to neurotoxicants. Determination of the role of biotransformation of xenobiotics in neural(More)
We have examined the effects of prenatal protein malnutrition on interneuronally mediated inhibition and facilitation in the dentate gyrus of the rat using the paired-pulse technique. Field potentials were recorded in the dentate gyrus in response to paired stimuli delivered to the perforant path. The paired-pulse index (PPI) was used as a measure of the(More)
The distribution of glutathione (GSH) and glutathione S-transferases (GSTs) in the adult rat brain is cell-type specific, but their cellular distribution in the developing central nervous system is unknown. In the present study, GSH distribution in the mouse nervous system was visualized by mercury orange histochemistry and class-specific GSTs were(More)
Glutathione and its related enzymes play a major role in the detoxification of toxic chemicals. In rat brain the pattern of distribution of reduced glutathione exhibits cellular heterogeneity, suggesting also the possibility of cellular differences in glutathione conjugating capacity. To understand the potential role of GSH in detoxification of(More)
3-Acetylpyridine (3-AP), an analogue of nicotinamide, produces highly selective CNS lesions, the severity of which may be influenced by prior alterations in the metabolic activity of the affected neurons. The present study was undertaken to determine whether prior axotomy modified the response of dorsal root ganglia (DRG) and anterior horn (AH) neurons to(More)
The Human Genetic Cell Repository sponsored by the National Institute of General Medical Sciences (NIGMS) contains more than 11,000 cell lines and DNA samples collected from numerous individuals. All of these cell lines and DNA samples are categorized into several collections representing a variety of disease states, chromosomal abnormalities, heritable(More)
The locomotor activity of the garden slug Limax maximus was examined for components of circadian rhythmicity. Behavioural (running wheel) studies clearly demonstrated that the activity satisfies the principal criteria of circadian rhythmicity. In constant darkness at a constant temperature, the locomotor activity freeran with a period of about 24 h (range(More)
We examined the histochemical distribution of glucose-6-phosphate dehydrogenase (G6PD) activity in neural tissue using different diffusion barriers. Although polyvinyl alcohol and agar overlays permitted regional localization of G6PD, a semipermeable membrane revealed cellular differences in G6PD activity within populations of neurons. Distribution of G6PD(More)
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