The effect of maternal high sucrose exposure on bone mineral density and serum bone metabolism markers in adult offspring
10.3760/cma.j.issn.1000-6699.2019.09.010
- VernacularTitle: 大鼠孕期高糖饮食对子代成年骨密度及血清骨代谢指标的影响
- Author:
Zhuoyan LING
1
;
Lei WU
2
;
Jia JIN
1
;
Honghui SONG
1
;
Youjia XU
1
Author Information
1. Department of Orthopedics, Second Affiliated Hospital of Soochow University, Suzhou 215004, China
2. Department of Women and Children′s Health, Center for Disease Control and Prevention, Suzhou Industrial Park, Suzhou 215021, China
- Publication Type:Journal Article
- Keywords:
Maternal high sucrose exposure;
Offspring;
Bone mineral density;
Bone metabolism
- From:
Chinese Journal of Endocrinology and Metabolism
2019;35(9):777-783
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To study the impact on bone mineral density, serum bone metabolism markers, and the expression of osteoprotegerin (OPG) and receptor activator of NF-κB ligand (RANKL) in the adult offspring exposed to maternal high sucrose diet during gestation.
Methods:The pregnant Sprague-Dawley (SD) rats were randomly divided into two groups: high sucrose diet group (HS group) rats were given 20% sucrose solution and standard rat food, normal diet group (ND group) rats were provided with fresh tap water and standard rat food. The serum concentrations of alkaline phosphatase (ALP), osteocalcin, tartrate resistant acid phosphatase-5b (TRACP-5b), OPG, and RANKL were measured by the enzyme linked immunosorbent assay (ELISA). The lumbar vertebrae were attained and prepared for micro-computed tomography (Micro-CT) scanning. Compared the expression of OPG and RANKL mRNA in the adult lumbar vertebrae were determined by realtime quantitative PCR.
Results:The maternal blood glucose levels and insulin levels were higher in the HS group(P<0.05). The body weight gain during pregnancy and fetal body weight were heavier in the HS group(P<0.05). In HS group that compared to ND group, the serum concentrations of ALP and OPG were decreased, while TRACP-5b and RANKL were increased, and the ratio of OPG/RANKL were significantly increased(P<0.05). Compared to ND group, the bone mineral density, the bone volume per tissue volume, trabecular thickness, the trabecular number were decreased in HS group(P<0.05). The trabecular separation was increased in HS group compared to ND group(P<0.05). The expression of OPG mRNA in the offspring lumbar vertebrae was significantly down-regulated. Conversely, the expression of RANKL mRNA was significantly up-regulated.
Conclusion:Maternal high sucrose diet during gestational periods may affect the bone mineral density, serum bone metabolism markers, and the expression of OPG and RANKL in adult offspring.
