In recent papers, Tanabe et al.(1956,1957) reported that no increase in the uptake of I131 by the thyroid was observed in molting hens as compared with laying hens,and no acceleration in the release of I131 as thyroid hormone from the thyroid of the hen was observed either in molting period or in pre-molting period. Further-more, it has been shown that thiouracil feeding does not prevent natura...

THE experiments described in this paper were carried out to determine the effect of hypophysectomy and hyperthyroidism (induced by the thyrotrophic hormone of the anterior lobe of the pituitary) on the metabolism of the cerebral cortex measured in vitro, and to compare this tissue with another organ, namely liver. Up to now comparatively little work has been done from this point of view and, so...

The frequency of myopathy in hypothyroidism ranges from 30 to 80%. The major symptoms related are weakness, muscular cramps and myalgia. The pseudohyperthrophic form is called Hoffman's syndrome. The electrophysiological study reveals myopathy, neuropathy or mixed pattern. Laboratorial investigation generally shows increased levels of muscle enzymes and low serum thyroid hormones, with thyrotro...

BACKGROUND AND OBJECTIVES Human chorionic gonadotropin (HCG) and thyrotrophic hormone (TSH) have analogies in their structures, as well as in their receptors. The high levels of HCG seen in gestational trophoblastic diseases may induce secondary hyperthyroidism. The objective of this report was to present a case in which the administration of iodinated contrast triggered a thyrotoxic crisis. ...

In a recent review (Dewhurst, El Kabir, Harris and Mandeibrote, 1968) the evidence relating the effect of stress to thyroid fttnction has been surveyed. In that account the comment was made that although it is impossible to assess or quantify the psychological trauma that any mentally ill patient is undergoing, it would seem reasonable to assume that if emotional stress is associated with abnor...