GLP-1R gene polymorphisms and metabolic traits during childhood and adolescence: The EPOCH study.

Aims/hypothesis: This is the first study to examine the association between variants of the glucagon-like-peptide-1 receptor gene (GLP-1R) and metabolic characteristics among youth. We explored separate associations of three GLP-1R polymorphisms (rs10305420, rs6923761, and rs1042044) with BMI trajectories and markers of glucose-insulin homeostasis.

Methods: Mixed models examined associations between GLP-1R polymorphisms and trajectories of BMI.

Systematic review on maternal dietary patterns during pregnancy and offspring allergy.

Allergic diseases including food allergy, atopic dermatitis, asthma, and allergic rhinitis are increasing. Nutritional intake may play a role in this increase. Systematic reviews indicate that intake of specific nutrients and foods does not prevent allergic diseases.

Validation of a Food Frequency Questionnaire: VioScreen-Allergy.

Background/objectives: An adapted version of an online pictorial food frequency questionnaire (FFQ), VioScreen-Allergy, assesses total dietary intake and intake of allergens and foods in the maternal diet index (MDI), linked to offspring allergy. This study assessed intermethod reliability, test-retest reliability, and external validity of the VioScreen-Allergy.

Methods: Females of childbearing age were recruited at Denver Health and Children's Hospital, Colorado, USA, and were asked to complete four 24 h recalls and two VioScreen-Allergy FFQs over the course of a month.

Prenatal black carbon exposure and DNA methylation in umbilical cord blood.

Background/objectives: Prenatal exposure to ambient air pollution is associated with adverse cardiometabolic outcomes in childhood. We previously observed that prenatal black carbon (BC) was inversely associated with adiponectin, a hormone secreted by adipocytes, in early childhood. Changes to DNA methylation have been proposed as a potential mediator linking in utero exposures to lasting health impacts.