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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Plasma adrenocorticotropin and cortisol responses to ovine corticotropin-releasing factor in patients with adrenocortical insufficiency due to hypothalamic and pituitary disorders.

Plasma ACTH and cortisol responses to intravenous injection of 100 micrograms synthetic ovine corticotropin-releasing factor (CRF) were studied in 4 patients with hypothalamic hypopituitarism, 2 patients with Sheehan's syndrome, 2 patients with isolated ACTH deficiency and 10 normal subjects. All 4 patients with hypothalamic hypopituitarism had exaggerated plasma ACTH responses to CRF compared to normal subjects and gradual but definite increases in plasma cortisol from low basal levels. Of 2 patients with Sheehan's syndrome, one had slight ACTH and cortisol increases after CRF injection, whereas the other had no increase in either. In 2 patients with isolated ACTH deficiency, plasma ACTH and cortisol remained undetectable (ACTH less than 10 pg/ml, cortisol less than 0.6 microgram/dl) after CRF injection. These results suggest that the CRF test is a useful tool in evaluating patients with secondary adrenocortical deficiency.[1]

References

  1. Plasma adrenocorticotropin and cortisol responses to ovine corticotropin-releasing factor in patients with adrenocortical insufficiency due to hypothalamic and pituitary disorders. Tsukada, T., Nakai, Y., Koh, T., Tsujii, S., Inada, M., Nishikawa, M., Shinoda, H., Kawai, I., Takezawa, N., Imura, H. J. Clin. Endocrinol. Metab. (1984) [Pubmed]
 
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