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[Changes of type IV collagen 7S and fibronectine in a patient with isolated ACTH deficiency].

A 60-year-old man presented with waste, muscle weakness and pain of knees and shoulders. Endocrinological investigations revealed low plasma cortisol and ACTH levels, delayed response of plasma cortisol to ACTH, no response of plasma ACTH to CRF and normal response to other pituitary hormone to corresponding stimulate test. He was diagnosed as isolated ACTH deficiency. Then we examined plasma type IV collagen 7S and fibronectin, because experimentally, corticosteroid regulates the extracellular matrix structure composed of type IV collagen, fibronectin and so on. These parameters were elevated and rapidly decreased to the normal range with the replacement of hydrocortisone, simultaneously his arthralgia was improved. These parameters can reflect the biochemistric change in cortisol deficiency state.