Flora L Chang

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Weight bearing during exercise plays an important role in improving the mechanical properties of bone. The effect on bone of non-weight-bearing exercise such as swimming remains controversial. To investigate the effects of exercise mode on growing bone, 29 male Wistar rats (7 wk old) were randomly assigned to a running exercise group (Run, n = 9), a(More)
Anesthesia in infancy impairs performance in recognition memory tasks in mammalian animals, but it is unknown if this occurs in humans. Successful recognition can be based on stimulus familiarity or recollection of event details. Several brain structures involved in recollection are affected by anesthesia-induced neurodegeneration in animals. Therefore, we(More)
BACKGROUND Many anaesthetics when given to young animals cause cell death and learning deficits that persist until much later in life. Recent attempts to compare the relative safety or toxicity between different agents have not adequately controlled for the relative dose of anaesthetic given, thereby making direct comparisons difficult. METHODS Isoflurane(More)
BACKGROUND Previous studies have shown that dextromethorphan (DM) produces an analgesic/antihyperalgesic effect. This study was designed to examine whether postoperative DM intramuscular (i.m.) injection could reduce post-hemorrhoidectomy pain. METHODS At the end of the surgery, patients in the study group (n = 30) were given an intramuscular injection of(More)
Central autonomic dysfunctions can be due to primary (degenerative) or secondary disorders. Autonomic failure (AF) may be a major manifestation of multiple system atrophy (MSA) and idiopathic Parkinson's disease (IPD). In both MSA and IPD, AF is almost invariably associated with neuronal loss in the intermediolateral cell columns. Dysautonomia in MSA is(More)
A 73-year-old man developed acute, painful, ophthalmoplegia. The pain improved with oral steroids and a diagnosis of Tolosa-Hunt syndrome was made. Review of his angiogram revealed a low flow dural arteriovenous shunt that drained posteriorly. Dural arteriovenous shunts may thus be another cause of "sinister" Tolosa-Hunt syndrome.
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