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Horseradish peroxidase (HRP) in slow-release gel was unilaterally implanted in the dorsal lateral funiculus (DLF) of either cervical, midthoracic, lumbar or sacral spinal cord levels of adult male rats. Complete mappings and cell counts were made of HRP-filled cells from the level of the rostral trapezoid body caudal to the inferior olive. Following(More)
Apolipoprotein E (apoE), a lipid transporting protein, is extensively expressed in the primary olfactory pathway, but its function is unknown. We previously reported increased apoE levels in the olfactory bulb (OB) following olfactory epithelium (OE) lesion in mice, and hypothesized that apoE may play a vital role in olfactory nerve (ON) regeneration. To(More)
Several problems arise when electrophysiological measurements are attempted on cells exposed to an electric field. In addition to field distortion produced by the reference electrode, membrane potential measurements by conventional microelectrode or patch-clamp techniques suffer serious interference from the applied field. We describe here a novel method(More)
Exposure to a power-frequency magnetic field has been reported to produce a statistically significant inhibition of gap junctional communication (GJC) in Clone 9 cells that have been pre-stressed by treatment with low concentrations of chloral hydrate (CH) [C.F. Blackman, J.P. Blanchard, S.G. Benane, D.E. House, J.A. Elder, Double blind test of magnetic(More)
Magnetic-field exposure (45 Hz B(a.c.) over a flux density range of 7.7 to 49.9 microT r.m.s. with parallel B(d.c.) of 36.6 microT) has been reported by Blackman and coworkers to inhibit gap junction intercellular communication in Clone 9 cells treated with chloral hydrate for 24 h prior to field exposure in accord with predictions of the ion parametric(More)
Horseradish peroxidase (HRP) in slow-release gel was unilaterally implanted in the transected dorsolateral funiculus (DLF) of either cervical, midthoracic, lumbar or sacral spinal cord levels of adult male rats. Cell mappings were made of all brain areas projecting through the DLF. Following cervical implants, dense labelling was observed within a band(More)
To investigate whether alteration in interferon (IFN) production might serve as a biomarker for certain toxic chemical exposures, an in vivo mouse model system was studied. Female C3H mice were injected intraperitoneally with varying doses of benzo[a]pyrene (BP), and at various times subsequent to this treatment, serum IFN levels, following Sendai virus(More)
Cultured mouse kidney cells grown in serum-free medium were used to assess the metabolism of 25-hydroxyvitamin D3 in the presence of simulated metabolic acidosis. Kidney epithelial cells isolated from 4-6 week old mice were grown to confluence in a defined serum-free medium at pH 7.4. The confluent monolayers were incubated with tritiated 25-hydroxyvitamin(More)