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A total number of 114 toddlers at 12 months ± 2 weeks of age will be recruited and randomized to two groups (placebo or LCP-supplemented). Cognition, visual function, anthropometric, immunologic and biochemical status, and health will be assessed upon entry to evaluate equality between study groups.
The primary outcome measure for Part A will be maturation of cognition at 24 months ± 2 weeks of age (after 12 months of LCP dietary intervention) as assessed by the Bayley Scales of Infant Development (BSID)-version III. In Part B, maturation of cognition at 36 months of age (after 24 months of LCP dietary intervention) will be assessed using the Wechsler Preschool and Primary Scale of Intelligence (WPPSI-III).
The study supplements are (1) a micro-encapsulated powder containing a 1:1 ratio of the omega-3 fatty acid, docosahexaenoic acid (DHA) and the omega-6 fatty acid, arachidonic acid (ARA) from algal and fungal sources, respectively; and (2) a micro-encapsulated powder containing corn oil placebo. Two foil-packets containing either active intervention or placebo will provide 200mg DHA and 200mg ARA or 400 mg placebo oil per day to the toddler. Two packets of the powders will be added each day to a selection of recommended foods (e.g., yogurt). The duration of treatment will be from 12 to 24 months of age in Part A and in Part B will be from 24 to 36 months and followed to 42 months of age.
Secondary outcome measures are:
- COGNITION: Peabody Picture Vocabulary Test (PPVT-II; 42 mo) and the Bracken Basic Concept Scale (42 mo).
- VISION: Grating & stereoacuity (12, 24 & 36 mo); letter acuity at 36 mo.
- ANTHROPOMETRICS, HEALTH INDICES & DIETARY STATUS: Weight, height, head circumference, waist & hip measures, body mass index (BMI), skin fold fat deposition, heart rate (HR), blood pressure (BP), omega-3-targeted food questionnaire (at 12,18, 24, 30, 36, & 42 mo), childhood illnesses from birth to 36 months with emphasis on allergy and asthma chart review and a questionnaire to determine family history of asthma and allergy as well as the child's exposure to smoking (12, 24 & 36 mo).
- EXECUTIVE FUNCTION: Behavior Rating Inventory of Executive Function - Preschool Version (BRIEF-P questionnaire; 24 & 36 mo), Kansas Reflection-Impulsivity Scale for Preschoolers (KRISP; 42 mo), Dimensional Change Card Sort (DCCS; 42 mo), three Stroop Tasks (42 mo), the Grass/Snow task (42 months), and the Day/Night Task (42 months).
- SLEEP: Brief Infant Sleep Questionnaire (BSIQ;12 & 24 mo), Children's Sleep Habits Questionnaire (CSHQ; 36 & 42 mo).
- IMMUNE FUNCTION: plasma cytokine levels (12 & 24 mo), skin prick tests for specific IgEs (12 & 24 mo), plasma total IgE, salivary (secretory) IgA (12 & 24 mo), plasma C-reactive protein (CRP;12 & 24 mo).
- INDICES OF NEURAL TISSUE COMPOSITION AND COMPLIANCE: Total RBC fatty acid analysis (12 & 24 mo), buccal cheek cell phospholipids fatty acid analysis (12, 24, & 36 mo).
Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Prevention
Healthy Term Infants
Docosahexaenoic acid (DHA) and arachidonic acid (ARA), Corn oil placebo
Retina Foundation of the Southwest
Not yet recruiting
Retina Foundation of the Southwest
Published on BioPortfolio: 2014-08-27T03:19:10-0400
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