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Clinical and biochemical characteristics of growth hormone-secreting pituitary tumors

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Summary

To investigate the difference of biochemical characteristics on gsp-positive and gsp-negative growth hormone (GH)-secreting pituitary tumors, 18 GH-secreting pituitary tumors were examined for their clinical characteristics and gsp oncogenes. All patients received the pituitary function combinative stimulating test. It was found that there were no difference in the sex, age, tumor size, course of disease and plasma basal GH levels with gsppositive and gsp-negative patients. The plasma levels of PRL were increased in most patients (11/18), and the plasma levels of TSH in gsp-positive patients were higher than those in gsp-negative patients (P < 0.05). There was no significant difference in the responses to pituitary combinative stimulating test in gsp-positive and gsp-negative patients. It was concluded that there was little difference in the clinical biochemical characteristics of gsp-positive with gsp-negative GH-secreting pituitary tumors.

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References

  1. gsp 2000, 17(l):18

  2. Lei T, Adams E F, Buchfelder Met al. Relationship between protein kinase C and adenylyl cyclase activity in the regulation of growth hormone secretion by human pituitary somatotrophinomas. Neurosurgery, 1996, 39:569

    CAS  PubMed  Google Scholar 

  3. Landis C A, Masters S B, Spada Aet al. GTPase inhibiting mutations activate the α-chain of Gs and stimulate adenylyl cyclase in human pituitarytumors. Nature, 1980, 340:692

    Article  ADS  Google Scholar 

  4. Adams E F, Mashiter K. Secretion of growth hormone by normal and tumous human pituitary somatotrophs in cell culture. Endocrinology’ 85, Excerpta Medica, 1986. 75

  5. Adams E F, Lei T, Buchfelder Met al. Biochemical characteristics of human pituitary somatotrophinomas with and without gsp mutation: in vitro cell culture studies. J Clin Endocrinol Metab, 1995, 80:2077

    CAS  PubMed  Google Scholar 

  6. Bresson-Bepoldin L, Odessa M F, Dufy-Barbe L. GHRP-6 stimulates calcium increase and growth hormone release in human somatotrophs in vitro. Endocrine J, 1994, 2: 793.

    CAS  Google Scholar 

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This project was supported by a grant from the National Natural Sciences Foundation of China (No. 39670736).

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Xiangjun, B., Ting, L. & Kui, L. Clinical and biochemical characteristics of growth hormone-secreting pituitary tumors. Current Medical Science 20, 212–213 (2000). https://doi.org/10.1007/BF02886993

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  • DOI: https://doi.org/10.1007/BF02886993

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