Linked Life Data

2842361

Source:http://linkedlifedata.com/resource/pubmed/id/2842361

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pubmed-article:2842361pubmed:abstractTextWe previously found that patients with hypoglycemia due to chronic renal and liver disease had anomalous metabolic responses to glucose and glucagon stimulation. In this study we evaluated the use of glucagon (2 mg, iv) tests in the diagnosis of spontaneous hypoglycemia secondary to hepatocellular carcinoma (HCC) and insulinoma. Twenty-one normal subjects, 45 patients with HCC (11 with hypoglycemia), and 14 patients with insulinoma (all with hypoglycemia) were studied. The fasting blood glucose level was low in all patients with hypoglycemia. The fasting plasma insulin and C-peptide concentrations were high in patients with insulinoma and low in patients with HCC and hypoglycemia. The blood glucose responses to glucagon administration were less than normal in patients with HCC and hypoglycemia and within normal limits in patients with insulinoma. The insulinoma patients had increased plasma insulin and C-peptide responses to glucagon despite having low blood glucose levels. Compared with the HCC patients without hypoglycemia, HCC patients with hypoglycemia had impaired plasma insulin and C-peptide responses. The fasting hypoglycemia, hypoinsulinemia, and impaired insulin/C-peptide responses to glucagon in patients with hepatoma and hypoglycemia presumably reflect the production of insulin-like substances by the hepatoma. We conclude that glucagon administration results in characteristic responses in these groups of patients and can be of use in the diagnosis of spontaneous hypoglycemia secondary to hepatoma or insulinoma.lld:pubmed
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pubmed-article:2842361pubmed:pagination546-50lld:pubmed
pubmed-article:2842361pubmed:dateRevised2011-11-17lld:pubmed
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pubmed-article:2842361pubmed:year1988lld:pubmed
pubmed-article:2842361pubmed:articleTitleThe use of glucagon challenge tests in the diagnostic evaluation of hypoglycemia due to hepatoma and insulinoma.lld:pubmed
pubmed-article:2842361pubmed:affiliationDepartment of Medicine, University of Hong Kong, Queen Mary Hospital.lld:pubmed
pubmed-article:2842361pubmed:publicationTypeJournal Articlelld:pubmed
pubmed-article:2842361pubmed:publicationTypeResearch Support, Non-U.S. Gov'tlld:pubmed
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