Rationale and design of the Baylor Infant Twin Study—A study assessing obesity‐related risk factors from infancy
| Autor: | Mimi Phan, Sheryl O. Hughes, Robert A. Waterland, Amy B. Hair, Shabnam R Momin, Maria A. Papaioannou, William C Lange, Mackenzie K Senn, Scott Buckley, Alexis C. Wood, Kelly R. Hodges, Manisha Gandhi, Neil R. M. Buist |
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| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
lcsh:Internal medicine obesity Endocrinology Diabetes and Metabolism media_common.quotation_subject design paper 030209 endocrinology & metabolism Infant temperament 03 medical and health sciences 0302 clinical medicine Genetic predisposition Medicine Early childhood twin study lcsh:RC31-1245 Infant feeding media_common 030109 nutrition & dietetics Nutrition and Dietetics epigenetics infants business.industry Original Articles temperament medicine.disease Twin study Obesity Zygosity Original Article Temperament business Clinical psychology |
| Zdroj: | Obesity Science & Practice Obesity Science & Practice, Vol 7, Iss 1, Pp 63-70 (2021) |
| ISSN: | 2055-2238 |
| Popis: | Background Early childhood (0–3 years) is a critical period for obesity prevention, when tendencies in eating behaviors and physical activity are established. Yet, little is understood about how the environment shapes children's genetic predisposition for these behaviors during this time. The Baylor Infant Twin Study (BITS) is a two phase study, initiated to study obesity risk factors from infancy. Data collection has been completed for Phase 1 in which three sub‐studies pilot central measures for Phase 2. A novel infant temperament assessment, based on observations made by trained researchers was piloted in Behavior Observation Pilot Protocol (BOPP) study, a new device for measuring infant feeding parameters (the “orometer”) in the Baylor Infant Orometer (BIO), and methods for analyzing DNA methylation in twins of unknown chorionicity in EpiTwin. Methods EpiTwin was a cross‐sectional study of neonatal twins, while up to three study visits occurred for the other studies, at 4‐ (BOPP, BIO), 6‐ (BOPP), and 12‐ (BOPP, BIO) of age. Measurements for BOPP and BIO included temperament observations, feeding observations, and body composition assessments while EpiTwin focused on collecting samples of hair, urine, nails, and blood for quantifying methylation levels at 10 metastable epialleles. Additional data collected include demographic information, zygosity, chorionicity, and questionnaire‐based measures of infant behaviors. Results Recruitment for all three studies was completed in early 2020. EpiTwin recruited 80 twin pairs (50% monochorionic), 31 twin pairs completed the BOPP protocol, and 68 singleton infants participated in BIO. Conclusions The psychometric properties of the data from all three studies are being analyzed currently. The resulting findings will inform the development of the full BITS protocol, with the goal of completing assessments at 4‐, 6‐, 12‐, and 14‐month of age for 400 twin pairs. |
| Databáze: | OpenAIRE |
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