Paul Keen

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Numerous reports of epizootics dur to zearalanone, and the subsequent experimental work upon it have implicated this oestrogenic mycotoxin as an important pathologic agent for the uterus and vagina. The finding of zearalanone in fermented products in an area in Southern Africa where human cervical cancer is prevalent may be related to this disease.
  • D. R. Tomlinson, J. P. Robinson, A. M. Compton, P. Keen
  • 1989
This study was designed to examine the effect of dietary supplementation with essential fatty acids (evening primrose oil — 5% weight:weight added to the diet) on acute neurophysiological and neurochemical defects in streptozotocin-diabetic rats. Diabetic rats, which were not given evening primrose oil, showed highly significant elevations of nerve sorbitol(More)
To examine the effect of moderate and fatiguing exercise on the simple reaction times of recreational athletes, 12 subjects took a simple reaction-time test while at rest and while cycling on a Monark cycle ergometer at 70% and 100% of maximum workload. To estimate 70% and 100% of maximum workload the subjects underwent a standard incremental test until(More)
THE human respiratory tract is subject to a wide range of suspended irritants arising from atmospheric pollution, industrial dusts and fumes, or personal habits. Since these factors differ markedly in various communities, it is not surprising that the relative frequencies of cancer in the various respiratory organs of the African is very different from that(More)
  • P KEEN
  • 1953
Potassium iodide is not an antispirochaetal agent, and hence has no value in the treatment of early syphilis. Whether the drug exerts an effect upon the healing of lesions of late syphilis has never been established with certainty, but generations of clinical observers believed that such an effect was demonstrable. The controversy is no longer of(More)
SKIN cancer is relatively infrequent in the African. In the three-year period 1949 to 1951, during which time 590 cases of malignant disease in Africans were referred to the Radiation Therapy Department, only 50 cases of skin cancer were encountered. By comparison, among 1642 cases of cancer in Europeans seen during a similar period, 540 primarily affected(More)