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Osteocalcin Is Related to Enhanced Insulin Secretion in Gestational Diabetes Mellitus
OBJECTIVE: There is growing evidence that osteocalcin, an osteoblast-derived protein locally acting on bone formation, can increase insulin secretion as well as insulin sensitivity and thus prevent the development of obesity and diabetes in experimental animals. In humans, osteocalcin has been repor...
Autores principales: | , , , , , , , , , , |
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Formato: | Texto |
Lenguaje: | English |
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American Diabetes Association
2010
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2797959/ https://www.ncbi.nlm.nih.gov/pubmed/19808925 http://dx.doi.org/10.2337/dc09-1237 |
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author | Winhofer, Yvonne Handisurya, Ammon Tura, Andrea Bittighofer, Christina Klein, Katharina Schneider, Barbara Bieglmayer, Christian Wagner, Oswald F. Pacini, Giovanni Luger, Anton Kautzky-Willer, Alexandra |
author_facet | Winhofer, Yvonne Handisurya, Ammon Tura, Andrea Bittighofer, Christina Klein, Katharina Schneider, Barbara Bieglmayer, Christian Wagner, Oswald F. Pacini, Giovanni Luger, Anton Kautzky-Willer, Alexandra |
author_sort | Winhofer, Yvonne |
collection | PubMed |
description | OBJECTIVE: There is growing evidence that osteocalcin, an osteoblast-derived protein locally acting on bone formation, can increase insulin secretion as well as insulin sensitivity and thus prevent the development of obesity and diabetes in experimental animals. In humans, osteocalcin has been reported to be decreased in patients with type 2 diabetes. Because gestational diabetes mellitus (GDM) can serve as a model of pre–type 2 diabetes, the aim of this study was to investigate osteocalcin in GDM. RESEARCH DESIGN AND METHODS: Osteocalcin measurement and an oral glucose tolerance test were performed in 78 pregnant women (26 women had GDM and 52 women had normal glucose tolerance [NGT] during pregnancy; women were matched for age and BMI) and in 34 women postpartum. RESULTS: During pregnancy osteocalcin was significantly higher in the women with GDM than in the women with NGT (15.6 ± 6.4 vs. 12.6 ± 4.0 ng/ml; P < 0.015), whereas no difference was observed between the two groups at 12 weeks postpartum (36.2 ± 10.2 vs. 36.2 ± 13.0 ng/ml), when osteocalcin was found to be increased compared with the level in the pregnant state in all women (+145 ± 102% in GDM vs. +187 ± 119% in NGT; P < 0.0001). Moreover, osteocalcin showed a significant correlation with basal and total insulin secretion in the whole study group (R = 0.3, P < 0.01). CONCLUSIONS: In GDM osteocalcin was higher and thus less restrained than in women with NGT during pregnancy and furthermore correlated with insulin secretion parameters. Therefore, it could be hypothesized that osteocalcin can enhance insulin secretion in insulin-resistant states; alternatively an effect of hyperinsulinemia on osteocalcin secretion cannot be excluded. |
format | Text |
id | pubmed-2797959 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2010 |
publisher | American Diabetes Association |
record_format | MEDLINE/PubMed |
spelling | pubmed-27979592011-01-01 Osteocalcin Is Related to Enhanced Insulin Secretion in Gestational Diabetes Mellitus Winhofer, Yvonne Handisurya, Ammon Tura, Andrea Bittighofer, Christina Klein, Katharina Schneider, Barbara Bieglmayer, Christian Wagner, Oswald F. Pacini, Giovanni Luger, Anton Kautzky-Willer, Alexandra Diabetes Care Original Research OBJECTIVE: There is growing evidence that osteocalcin, an osteoblast-derived protein locally acting on bone formation, can increase insulin secretion as well as insulin sensitivity and thus prevent the development of obesity and diabetes in experimental animals. In humans, osteocalcin has been reported to be decreased in patients with type 2 diabetes. Because gestational diabetes mellitus (GDM) can serve as a model of pre–type 2 diabetes, the aim of this study was to investigate osteocalcin in GDM. RESEARCH DESIGN AND METHODS: Osteocalcin measurement and an oral glucose tolerance test were performed in 78 pregnant women (26 women had GDM and 52 women had normal glucose tolerance [NGT] during pregnancy; women were matched for age and BMI) and in 34 women postpartum. RESULTS: During pregnancy osteocalcin was significantly higher in the women with GDM than in the women with NGT (15.6 ± 6.4 vs. 12.6 ± 4.0 ng/ml; P < 0.015), whereas no difference was observed between the two groups at 12 weeks postpartum (36.2 ± 10.2 vs. 36.2 ± 13.0 ng/ml), when osteocalcin was found to be increased compared with the level in the pregnant state in all women (+145 ± 102% in GDM vs. +187 ± 119% in NGT; P < 0.0001). Moreover, osteocalcin showed a significant correlation with basal and total insulin secretion in the whole study group (R = 0.3, P < 0.01). CONCLUSIONS: In GDM osteocalcin was higher and thus less restrained than in women with NGT during pregnancy and furthermore correlated with insulin secretion parameters. Therefore, it could be hypothesized that osteocalcin can enhance insulin secretion in insulin-resistant states; alternatively an effect of hyperinsulinemia on osteocalcin secretion cannot be excluded. American Diabetes Association 2010-01 2009-10-06 /pmc/articles/PMC2797959/ /pubmed/19808925 http://dx.doi.org/10.2337/dc09-1237 Text en © 2010 by the American Diabetes Association. Readers may use this article as long as the work is properly cited, the use is educational and not for profit, and the work is not altered. See http://creativecommons.org/licenses/by-nc-nd/3.0/ for details. |
spellingShingle | Original Research Winhofer, Yvonne Handisurya, Ammon Tura, Andrea Bittighofer, Christina Klein, Katharina Schneider, Barbara Bieglmayer, Christian Wagner, Oswald F. Pacini, Giovanni Luger, Anton Kautzky-Willer, Alexandra Osteocalcin Is Related to Enhanced Insulin Secretion in Gestational Diabetes Mellitus |
title | Osteocalcin Is Related to Enhanced Insulin Secretion in Gestational Diabetes Mellitus |
title_full | Osteocalcin Is Related to Enhanced Insulin Secretion in Gestational Diabetes Mellitus |
title_fullStr | Osteocalcin Is Related to Enhanced Insulin Secretion in Gestational Diabetes Mellitus |
title_full_unstemmed | Osteocalcin Is Related to Enhanced Insulin Secretion in Gestational Diabetes Mellitus |
title_short | Osteocalcin Is Related to Enhanced Insulin Secretion in Gestational Diabetes Mellitus |
title_sort | osteocalcin is related to enhanced insulin secretion in gestational diabetes mellitus |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2797959/ https://www.ncbi.nlm.nih.gov/pubmed/19808925 http://dx.doi.org/10.2337/dc09-1237 |
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