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  • Title: [Food-dependent Cushing syndrome: a new entity of organic hypercorticism].
    Author: Matejka G, Vergès B, Vaillant G, Petit JM, Pacaud A, Brun JM.
    Journal: Rev Med Interne; 1996; 17(6):461-6. PubMed ID: 8758532.
    Abstract:
    Diagnosis of Cushing's syndrome is quite difficult in endocrinology. Spontaneous Cushing's syndrome is usually divided into two subgroups, one which is dependent on corticotropin (ACTH) and another one which is not. In the first class are Cushing's disease, the ectopic corticotropin syndrome and the rare ectopic corticotropin-releasing hormone (CRH) syndrome; these ACTH-dependent Cushing's syndrome have usually diffusely enlarged adrenal glands. In the second class are cortisol producing unilateral adrenocortical adenomas or carcinomas, and the recent Cushing's syndrome with food dependent periodic hormonogenesis. This food dependent Cushing's syndrome is an ACTH-independent Cushing's syndrome with multinodular enlargement of both adrenal glands. Pathogenesis is an aberrant adrenal sensitivity to physiologic secretion of gastric inhibitory peptide (GIP). Ectopic expression of GIP receptors on adrenal cells involve pathologic food induced cortisol secretion. Food dependent Cushing's syndrome is a new cause of Cushing's syndrome. Food induced cortisol secretion may have to be explored in the ACTH-independent Cushing's syndrome.
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