Associations of prenatal and postnatal growth with insulin-like growth factor-I levels in pre-adolescence
| Autor: | Michael S. Kramer, Nina Gusina, Richard M. Martin, N Bogdanovich, Ryan Arathimos, Caroline J. Bull, Jeffrey M P Holly, Emily Oken, Kate Tilling, Konstantin Vilchuck, Rita Patel, Macdonald-Wallis C |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
medicine.medical_specialty
Preadolescence business.industry medicine.medical_treatment Birth weight Breastfeeding medicine.disease 3. Good health 03 medical and health sciences Insulin-like growth factor 0302 clinical medicine Endocrinology 030220 oncology & carcinogenesis Diabetes mellitus Internal medicine Epidemiology medicine 030212 general & internal medicine Postnatal growth medicine.symptom business Weight gain Demography |
| Zdroj: | Arathimos, R, Macdonald-Wallis, C, Bull, C, Holly, J M P, Oken, E, Kramer, M S, Gusina, N, Bogdanovich, N, Vilchuck, K, Patel, R, Martin, R & Tilling, K 2017, ' Associations Of Prenatal And Postnatal Growth With Insulin-Like Growth Factor-I Levels In Pre-Adolescence ', bioRxiv . |
| DOI: | 10.1101/144493 |
| Popis: | BackgroundRapid pre - and postnatal growth have been associated with later life adverse health outcomes, which could implicate (as a mediator) circulating insulin-like-growth-factor I (IGF-I), an important regulator of growth. We investigated associations of prenatal (birth weight and length) and postnatal growth in infancy and childhood with circulating IGF-I measured at 11.5 years of age.MethodsWe analysed 11.5-year follow-up data from 17,046 Belarusian children who participated in the Promotion of Breastfeeding Intervention Trial (PROBIT) since birth.ResultsComplete data were available for 5422 boys and 4743 girls (60%). We stratified the analyses by sex, as there was evidence of interaction between growth and sex in their associations with IGF-I. Weight and length/height velocity during childhood were positively associated with IGF-I at 11.5 years; associations increased with age at growth assessment and were stronger for length/height gain than for weight gain. The change in internal run-normalized IGF-I z-score at 11.5 years was 0.038 (95% CI -0.004,0.080) per standard deviation (SD) increase in length gain at 0-3 months amongst girls and 0.025 (95% CI - 0.011,0.060) amongst boys, increasing to 0.336 (95% CI 0.281,0.391;) and 0.211 (95% CI 0.165,0.256) for girls and boys, respectively, for growth during 6.5-11.5 years.ConclusionPostnatal growth velocities in childhood are positively associated with levels of circulating IGF-I in pre-adolescents. Future studies should focus on assessing whether IGF-I is on the causal pathway between early growth and later health outcomes, such as cancer and diabetes. |
| Databáze: | OpenAIRE |
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