Biomedical subjects
Publications and source records attributed to J Ballantyne.
Three patients treated with bromocriptine for chronic hepatic encephalopathy showed audiometric evidence of bilateral sensori-neural hearing-loss. Audiometrically, the hearing improved in all three patients when the bromocriptine dosage was reduced, thus suggesting that this drug may produce a reversible ototoxicity.
In five species of squid, varying in life-style from fast-swimming pelagic predators to sluggish benthic forms, the circular muscle of the mantle was found to be metabolically and structurally differentiated into inner, middle, and outer zones. In the middle zone, mitochondrial abundance and the ratios of oxidative to glycolytic enzyme activities were low. This zone was sandwiched between thinner bands of muscle lining both the inner and outer edges of the mantle. In these bands, mitochondrial abundance and the ratios of oxidative to glycolytic enzyme activities were high. It is proposed that this metabolic differentiation is analogous to the development of red and white muscles in vertebrates and that it serves a similar function, white muscle mainly supporting burst-type swimming and red muscle sustaining steady-state oxidative work.
The inpatient experience regarding coccidioidomycosis of head and neck was reviewed at the University of California Medical Center, San Francisco and affiliated hospitals. Four cases in which upper airway obstruction required otolaryngological consultation and intervention are reviewed in detail. History, epidemiology and pathophysiology of coccidioidomycosis involving upper airway are discussed. Suggestions for diagnosis and management are outlined.
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