Xiawei Ou1, Aline Andres2, Mario A Cleves2, R T Pivik2, Jeffrey H Snow2, Zhaohua Ding3, Thomas M Badger2. 1. 1] Arkansas Children's Nutrition Center, Little Rock, Arkansas [2] Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas [3] Department of Radiology, University of Arkansas for Medical Sciences, Little Rock, Arkansas. 2. 1] Arkansas Children's Nutrition Center, Little Rock, Arkansas [2] Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas. 3. Vanderbilt University Institute of Imaging Sciences, Nashville, Tennessee.
Abstract
BACKGROUND: The American Academy of Pediatrics recommends breastfeeding, which is well known to promote cognitive and behavioral development. The evidence for why this occurs is not well understood. METHODS: Fifty-six 7.5- to 8.5-y-old healthy children were breastfed (BF; n = 22, 10 males) or formula-fed (FF; n = 34, 16 males) as infants. All children were administered: the Reynolds Intellectual Assessment Scale (RIAS); the Clinical Evaluation of Language Fundamentals (CELF-4) tests; and magnetic resonance imaging of the brain. Diffusion tensor imaging (DTI) measured fractional anisotropy (FA) values were correlated with RIAS and CELF-4 scores. RESULTS: DTI tract-based spatial statistics (TBSS) analyses showed multiple white matter regions in the left hemisphere with significantly higher FA (P < 0.05, corrected) values in BF than FF males, but no significant group differences in females. Males who were exclusively BF for at least 1 y appeared to have the greatest differences in FA. Mean FA values positively correlated with composite scores of RIAS (P = 0.03) and CELF-4 (P = 0.02). CONCLUSION: Breastfeeding during infancy was associated with better white matter development at 8 y of age in boys. A similar association was not observed in girls.
BACKGROUND: The American Academy of Pediatrics recommends breastfeeding, which is well known to promote cognitive and behavioral development. The evidence for why this occurs is not well understood. METHODS: Fifty-six 7.5- to 8.5-y-old healthy children were breastfed (BF; n = 22, 10 males) or formula-fed (FF; n = 34, 16 males) as infants. All children were administered: the Reynolds Intellectual Assessment Scale (RIAS); the Clinical Evaluation of Language Fundamentals (CELF-4) tests; and magnetic resonance imaging of the brain. Diffusion tensor imaging (DTI) measured fractional anisotropy (FA) values were correlated with RIAS and CELF-4 scores. RESULTS: DTI tract-based spatial statistics (TBSS) analyses showed multiple white matter regions in the left hemisphere with significantly higher FA (P < 0.05, corrected) values in BF than FF males, but no significant group differences in females. Males who were exclusively BF for at least 1 y appeared to have the greatest differences in FA. Mean FA values positively correlated with composite scores of RIAS (P = 0.03) and CELF-4 (P = 0.02). CONCLUSION: Breastfeeding during infancy was associated with better white matter development at 8 y of age in boys. A similar association was not observed in girls.
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