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Ninety-six patients underwent percutaneous radiofrequency coagulation (RC) of the Gasserian ganglion for relief of trigeminal neuralgia between 1973 and 1978. Fifty-two percent of patients who were followed for 5 years were free of recurrence after a single RC procedure. Factors predicting clinical results were sought from initial historical and demographic(More)
Serum growth hormone (GH) levels and growth rates of goldfish were measured concurrently following discrete electrothermic lesions of a number of hypothalamic nuclei. Following lesions of the nucleus preopticus periventricularis (NPP), significant increases in serum GH levels were evident at 4 weeks postlesioning in comparison to both sham-operated and(More)
In the present study the effects of somatostatin on serum growth hormone (GH) levels in the goldfish, Carassius auratus, were investigated. A single intraperitoneal injection of either 0.1 or 1.0 micrograms somatostatin/g body wt caused a significant decrease in serum GH levels at 1 h postinjection compared to vehicle-injected controls. Two intraperitoneal(More)
The immunocytological activity of an antiserum to carp growth hormone was studied on the goldfish pituitary gland, using a peroxidase-antiperoxidase ultrastructural technique. The reaction was specific for secretory granules in cells in the proximal pars distalis categorized as growth hormone cells on the basis of ultrastructural characteristics. The(More)
The influence of catecholamines on growth hormone (GH) release in female goldfish was investigated by monitoring serum GH levels following injections of drugs known to alter catecholamine synthesis and neural activities. Intraperitoneal (i.p.) injection of 6-hydroxydopamine, a catecholaminergic neurotoxin, or alpha-methyl-p-tyrosine, a catecholamine(More)
Virtual characters often need to plan visually convincing paths through a complicated environment. For example, a traveler may need to walk from an airport entrance to a staircase, descend the staircase, walk to a shuttle, ride the shuttle to a destination, ride an elevator back to the ground floor, and finally move on the ground floor again to reach the(More)
Serum gonadotropin (GtH) concentrations in female goldfish were measured before and at various times after intraperitoneal injection of drugs altering catecholamine synthesis and neural activities. Reserpine, a depleter of neurotransmitter stores, elevated serum GtH levels compared to controls, suggesting the general involvement of neurotransmitters in(More)