24 research outputs found
Mechanism of repression of 11ÎČ-hydroxysteroid dehydrogenase type 1 by growth hormone in 3T3-L1 adipocytes
Late recurrence of a malignant hypoglycemiaâinducing pelvic solitary fibrous tumor secreting highâmolecularâweight insulinâlike growth factorâII: A case report with protein analysis
Metabolic Disorders in Adult Growth Hormone Deficiency: A Study of 110 Patients at a Single Institute in Japan
The Prevalence of Benign and Malignant Tumors in Patients with Acromegaly at a Single Institute
Efficacy, safety, and pharmacokinetics of sustained-release lanreotide (lanreotide Autogel) in Japanese patients with acromegaly or pituitary gigantism
Effects of GH assay standardization on evaluation of treatment outcomes for acromegaly in Japan
Levels of glucose-regulatory hormones in patients with non-islet cell tumor hypoglycemia: including a review of the literature
Diagnostic potential of miR-483 family for IGF-II producing non-islet cell tumor hypoglycemia
Objective: In insulin-like growth factor II (IGF-II) producing non-islet cell tumor hypoglycemia (NICTH), high molecular weight forms of IGF-II (big IGF-II) are produced as a cause of spontaneous hypoglycemia. MicroRNA (miRNA)-483 family, encoded in an intron lesion of IGF2 gene, is suggested to be co-expressed with IGF-II. Here, we tested whether serum miR-483-5p and -3p levels are associated with the presence of big IGF-II in NICTH. Design: Serum samples from patients who were suspected to have IGF-II producing NICTH (n = 42) were tested. MiR-483-5p and -3p levels were evaluated using quantitative PCR. IGF-II level was analyzed using ELISA. The presence of big IGF-II was identified by Western blotting. Results: Big IGF-II was detected in the sera of 32 patients. MiR-483-5p (P = 0.0015) and -3p (P = 0.027) levels were significantly higher in sera with big IGF-II (n = 32) than in those without (n = 10), whereas serum IGF-II level (P = 0.055) was not significantly different between the groups. The median serum concentration of miR-483-5p was ~10 times higher than that of miR-483-3p. Although a strong correlation was observed between the two miRNAs (r = 0.844, P < 0.0001), but neither of which was correlated with serum IGF-II level. The areas under the receiver operating characteristic curves of miR-483-5p (0.853) and -3p (0.722) were higher than that of IGF-II (0.694) for detecting the presence of big IGF-II. Conclusion: The associations of serum miR-483-5p and -3p levels with the presence of big IGF-II suggest the diagnostic potential of these miRNAs for IGF-II producing NICTH