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

Immunohistochemical and immunoelectron-microscopic study of pituitary adenomas associated with Cushing's disease. A report of 13 cases.

Thirteen pituitary adenomas were removed from patients with Cushing's disease by the transphenoidal route. All cases demonstrated a typical histochemical and ultrastructural pattern. Immunocytochemical study by means of the immunoperoxidase technique and light or electron microscopy demonstrated 1-24/1-39 adrenocorticotropic hormone (ACTH) in all cases, lipotropin/melanotropin (beta-LPH/beta-MSH) in 10 cases, beta-endorphin in 8 cases, and an absence of calcitonin in all cases. In addition, in 2 cases tumor tissue contained a few antiprolactin immunoreactive cells. These ACTH, beta-LPH, and beta-endorphin immunoreactivities may reflect either the peptides themselves or their precursors or intermediate products. The authors also suggest a possible intermediate-lobe-like processing of beta-LPH leading to beta-endorphin production, which may act on PRL cells. In addition, no positive arguments for the existence of a common precursor for calcitonin and ACTH could be provided from this study.[1]

References

  1. Immunohistochemical and immunoelectron-microscopic study of pituitary adenomas associated with Cushing's disease. A report of 13 cases. Charpin, C., Hassoun, J., Oliver, C., Jaquet, P., Argemi, B., Grisoli, F., Toga, M. Am. J. Pathol. (1982) [Pubmed]
 
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