Journal
REPRODUCTIVE SCIENCES
Volume 16, Issue 3, Pages 308-319Publisher
SAGE PUBLICATIONS INC
DOI: 10.1177/1933719108325755
Keywords
Glucocorticoid; insulin-like growth factor; IGF-binding protein; leptin; baboon; pregnancy
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Funding
- NIH [R01 HD21350, P51 RR013986, K08 DK02876]
- SPC Russell H. Nahvi Memorial Fund for Pediatric Pesearch at UTHSCSA
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Background: Maternal obesity represents a risk factor for pregnancy-related complications. Glucocorticoids are known to promote obesity in adults. Methods: We evaluated maternal and fetal metabolic changes during and after 3 weekly courses of betamethasone, administered to pregnant baboons (Papio subspecies) at doses equivalent to those given to pregnant women. Results: Betamethasone administration during the second half of pregnancy increased material weight but neither maternal food intake nor fetal weight, as assessed at the end of gestation. Betamethasone increased material scrum glucose concentration, the ratio of insulin-like growth-factor-I mid insulin-like growth factor binding protein-3, mid serum leptin during treatment (normalized by 17, 35, mid 45 days posttreatment, respectively,for each parameter). Maternal and-fetal serum leptin concentrations did not differ between groups at the end of gestation. Conclusion: Prolonged maternal hyperleptinemia caused by betamethasone administration in the second half of gestation did not change fetal metabolic parameters measured and placental leptin distribution at the end of gestation.
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