Publications by authors named "W T Steegenga"

Article Synopsis
  • The study examines how gut health markers vary within the same individuals over time, highlighting that this variability is not well understood despite advancements in gut health research.
  • A total of ten healthy adults provided faecal samples across three consecutive days, resulting in specific variability percentages for different gut health markers, revealing significant differences in consistency and bacterial counts.
  • An improved processing method, involving mill-homogenization of frozen faeces, decreased variability in certain markers without changing their average levels, suggesting that repeated sampling might be necessary for accurate gut health analysis.
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The human intestinal mucus layer protects against pathogenic microorganisms and harmful substances, whereas it also provides an important colonization niche for mutualistic microbes. The main functional components of mucus are heavily glycosylated proteins, called mucins. Mucins can be cleaved and utilized by intestinal microbes.

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This study explored differences in microbial lipid metabolites among sunflower seeds, soybeans, and walnuts. The matrices were subjected to in vitro digestion and colonic fermentation. Defatted digested materials and fiber/phenolics extracted therefrom were added to sunflower oil (SO) and also fermented.

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Purpose: Some dietary habits cluster together, and for this reason it is advised to study the impact of entire dietary patterns on human health, rather than that of individual dietary habits. The main objective of this study was to evaluate differences in gut microbiota composition and their predicted functional properties between people with a healthy (HDP) and western (WDP) dietary pattern.

Methods: A cross-sectional, observational study was carried out on 200 participants enrolled 2017-2018 in Poznań, Poland, equally distributed into HDP and WDP groups.

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It has been recognized that, next to dietary fibre and proteins, gut microbiota can metabolize lipids producing bioactive metabolites. However, the metabolism of dietary lipids by human gut microbiota has been poorly explored so far. This study aimed to examine the change in lipids, particularly linoleic acid (LA), induced by the chemical form of lipids and the presence of the plant matrix.

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