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The plasma metabolome is influenced by body weight and sex already at school age
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- Karlsson Videhult, Frida, 1980- (author)
- Umeå universitet,Pediatrik,Christina E West
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- Antti, Henrik (author)
- Umeå universitet,Kemiska institutionen
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- Hernell, Olle (author)
- Umeå universitet,Pediatrik
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- English.
- Other publication (other academic/artistic)
Abstract
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- Diet is one of the determinants of gut microbial composition. Reported changes in the biodiversity of the gut microbiota in the obese have spurred interest in gut microbiota modulation by dietary interventions. Using an untargeted metabolomics approach, we previously reported that infant cereals with the probiotic Lactobacillus paracasei ssp. paracasei F19 (LF19) fed daily from 4 to 13 months of age affected the plasma metabolome with lower levels of fatty acids associated with obesity indices compared with placebo. The study participants were invited to a follow-up study at 8-9 years of age and 120 children participated. Venous blood was drawn after overnight fasting and plasma samples were available from 112 children. Samples were analysed using GCxGC-time-of-flight/MS for characterisation of the global plasma metabolome. A combination of multivariate and univariate analysis was used to reveal differences between the LF19 and placebo group, and according to weight class and sex. The lower levels of palmitic acid and palmitoleic acid in the LF19 group during the intervention did not remain at the follow-up. Stronger models according to weight class and sex were obtained. BMI was associated with several metabolites including the branched-chain amino acids leucine and isoleucine, and the aromatic amino acids, tyrosine and phenylalanine. Collectively, feeding LF19 during weaning induced transient effects on the plasma metabolome. The disparities seen in the metabolic profile of overweight/obese young school children underscore the need for effective early preventive and treatment strategies.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Pediatrik (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Pediatrics (hsv//eng)
Keyword
- pediatrics
- probiotics
- Lactobacillus paracasei ssp paracasei F19
- long-term follow-up
- metabolomics
- Pediatrics
- pediatrik
Publication and Content Type
- vet (subject category)
- ovr (subject category)
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