Total and carboxylated osteocalcin associate with insulin levels in young adults born with normal or very low birth weight.
OBJECTIVE: Osteocalcin (OC), a bone-derived protein, has been implicated in the regulation of glucose and energy metabolism. Young adults born with very low birth weight (VLBW) have altered glucose regulation and lower bone mineral density (BMD) compared with those born at term. The aim of this stud...
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2013-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC3643916?pdf=render |
| _version_ | 1818292512574406656 |
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| author | Päivi M Paldánius Kaisa K Ivaska Petteri Hovi Sture Andersson Johan G Eriksson Kalervo Väänänen Eero Kajantie Outi Mäkitie |
| author_facet | Päivi M Paldánius Kaisa K Ivaska Petteri Hovi Sture Andersson Johan G Eriksson Kalervo Väänänen Eero Kajantie Outi Mäkitie |
| author_sort | Päivi M Paldánius |
| collection | DOAJ |
| description | OBJECTIVE: Osteocalcin (OC), a bone-derived protein, has been implicated in the regulation of glucose and energy metabolism. Young adults born with very low birth weight (VLBW) have altered glucose regulation and lower bone mineral density (BMD) compared with those born at term. The aim of this study was to explore the association between bone and glucose metabolism in healthy young adults born prematurely or at term. METHODS: The cohort of this cross-sectional study comprised 332 non-diabetic young adults (age 18 to 27 years) born either preterm with VLBW (n = 163) or at term (n = 169). OC, carboxylated osteocalcin (cOC) and markers of glucose metabolism were measured at fasting and after a 75-g oral glucose tolerance test (OGTT). RESULTS: VLBW adults were shorter, had lower BMD (p<0.001) and higher fasting OC (p = 0.027) and cOC (p = 0.005) than term-born subjects. They also had higher 2-hour insulin (p = 0.001) and glucose (p = 0.037) concentrations. OGTT induced a significant reduction in OC (p<0.001), similar in both groups. OC reduction was not associated with OGTT-induced increases in insulin (p = 0.54). However, fasting total OC and cOC correlated negatively with fasting insulin after adjustment for age, gender, BMD and VLBW status (r = -0.182, p = 0.009 and r = -0.283, p<0.001, respectively). CONCLUSION: Adults born with VLBW have higher OC and cOC than their peers born at term. This may in part reflect the mechanisms that underlie their lower BMD and decreased insulin sensitivity. Serum OC appears to be negatively associated with long-term glucose regulation whereas acute changes during OGTT may be mediated via other mechanisms. |
| first_indexed | 2024-12-13T03:01:08Z |
| format | Article |
| id | doaj.art-077dd900281144de8f0946e9d0357777 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-13T03:01:08Z |
| publishDate | 2013-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-077dd900281144de8f0946e9d03577772022-12-22T00:01:50ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-0185e6303610.1371/journal.pone.0063036Total and carboxylated osteocalcin associate with insulin levels in young adults born with normal or very low birth weight.Päivi M PaldániusKaisa K IvaskaPetteri HoviSture AnderssonJohan G ErikssonKalervo VäänänenEero KajantieOuti MäkitieOBJECTIVE: Osteocalcin (OC), a bone-derived protein, has been implicated in the regulation of glucose and energy metabolism. Young adults born with very low birth weight (VLBW) have altered glucose regulation and lower bone mineral density (BMD) compared with those born at term. The aim of this study was to explore the association between bone and glucose metabolism in healthy young adults born prematurely or at term. METHODS: The cohort of this cross-sectional study comprised 332 non-diabetic young adults (age 18 to 27 years) born either preterm with VLBW (n = 163) or at term (n = 169). OC, carboxylated osteocalcin (cOC) and markers of glucose metabolism were measured at fasting and after a 75-g oral glucose tolerance test (OGTT). RESULTS: VLBW adults were shorter, had lower BMD (p<0.001) and higher fasting OC (p = 0.027) and cOC (p = 0.005) than term-born subjects. They also had higher 2-hour insulin (p = 0.001) and glucose (p = 0.037) concentrations. OGTT induced a significant reduction in OC (p<0.001), similar in both groups. OC reduction was not associated with OGTT-induced increases in insulin (p = 0.54). However, fasting total OC and cOC correlated negatively with fasting insulin after adjustment for age, gender, BMD and VLBW status (r = -0.182, p = 0.009 and r = -0.283, p<0.001, respectively). CONCLUSION: Adults born with VLBW have higher OC and cOC than their peers born at term. This may in part reflect the mechanisms that underlie their lower BMD and decreased insulin sensitivity. Serum OC appears to be negatively associated with long-term glucose regulation whereas acute changes during OGTT may be mediated via other mechanisms.http://europepmc.org/articles/PMC3643916?pdf=render |
| spellingShingle | Päivi M Paldánius Kaisa K Ivaska Petteri Hovi Sture Andersson Johan G Eriksson Kalervo Väänänen Eero Kajantie Outi Mäkitie Total and carboxylated osteocalcin associate with insulin levels in young adults born with normal or very low birth weight. PLoS ONE |
| title | Total and carboxylated osteocalcin associate with insulin levels in young adults born with normal or very low birth weight. |
| title_full | Total and carboxylated osteocalcin associate with insulin levels in young adults born with normal or very low birth weight. |
| title_fullStr | Total and carboxylated osteocalcin associate with insulin levels in young adults born with normal or very low birth weight. |
| title_full_unstemmed | Total and carboxylated osteocalcin associate with insulin levels in young adults born with normal or very low birth weight. |
| title_short | Total and carboxylated osteocalcin associate with insulin levels in young adults born with normal or very low birth weight. |
| title_sort | total and carboxylated osteocalcin associate with insulin levels in young adults born with normal or very low birth weight |
| url | http://europepmc.org/articles/PMC3643916?pdf=render |
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