Maternal glucose in pregnancy is associated with child's adiposity and leptin at 5 years of age.
Pediatr Obes
; 16(9): e12788, 2021 09.
Article
in En
| MEDLINE
| ID: mdl-33728816
ABSTRACT
BACKGROUND:
Exposure to maternal hyperglycaemia in pregnancy has been associated with childhood obesity. Leptin regulation might be involved in this 'adiposity programming' and may depend on timing of exposure.OBJECTIVES:
To investigate associations of maternal glycaemia at different periods in pregnancy with childhood adiposity and leptin levels at 5 years of age.METHODS:
In a prospective pre-birth cohort, we measured maternal glucose levels after a 50 g oral glucose challenge test at first trimester (9.8 ± 2.3 weeks) and during a 75 g oral glucose tolerance test at second trimester (26.5 ± 0.9 weeks). We followed up children at 5 years; we measured anthropometry and body composition using dual-energy X-ray absorptiometry (DXA). We measured fasting leptin levels using immunoassays (Luminex) in 328 children. We conducted linear regression analyses, adjusting for potential confounders.RESULTS:
Maternal glycaemia at first trimester was associated with childhood leptin levels at 5 years, independently of maternal pre-pregnancy BMI and other confounders (ß = .09 ± .04; P = .03). Higher post-load glucose levels at second trimester were associated with greater total body fat percentage measured by DXA (1 hour-glucose ß = .010 ± .004; P = .03 and 2 hours-glucose ß = .016 ± .005; P = .002), but not with leptin levels.CONCLUSIONS:
Our results suggest that programming of leptin regulation may be sensitive to maternal hyperglycaemia specifically in early pregnancy.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Blood Glucose
/
Leptin
/
Adiposity
/
Pediatric Obesity
Type of study:
Observational_studies
/
Risk_factors_studies
Limits:
Child, preschool
/
Female
/
Humans
/
Pregnancy
Language:
En
Journal:
Pediatr Obes
Year:
2021
Type:
Article
Affiliation country:
Canada