期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 68, 期 45, 页码 12606-12616出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.0c04821
关键词
polyphenols; ellagitannins; ellagic acid; Coriobacteriia; Eggerthellaceae; microbial metabolism; urolithin-producing bacteria
资金
- MINECO, Spain [AGL201564124-R, AGL-2015-73106-EXP]
- Fundacion Seneca de la Region de Murcia, Spain [20880/PI/18]
- MINECO (Spain)
The maternal-infant transmission of several urolithins through breast milk and the gut colonization of infants by the urolithin-producing bacterium Gordonibacter during their first year of life were explored. Two trials (proof-of-concept study: n = 11; validation study: n = 30) were conducted, where breastfeeding mothers consumed walnuts as a dietary source of urolithin precursors. An analytical method was developed and validated to characterize the urolithin profile in breast milk. Total urolithins ranged from 8.5 to 176.9 nM, while they were not detected in breast milk of three mothers. The mothers' urolithin metabotypes governed the urolithin profile in breast milk, which might have biological significance on infants. A specific quantitative polymerase chain reaction method allowed monitoring the gut colonization of infants by Gordonibacter during their first year of life, and neither breastfeeding nor vaginal delivery was essential for this. The pattern of Gordonibacter establishment in babies was conditioned by their mother's urolithin metabotype, probably because of mother-baby close contact.
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