microbiome Flashcards
what is the microbiome?
entire habitat, including micro-organisms, their genomes, and surrounding enviro
what is microbiota?
microbial community, including bacteria, archaea, eukaryotes, viruses, that occupy given habitat
what is metagenomics?
process used to characterize metagenome (genes from microbiota) from which info on the potential function of microbiota can be gained
factors that shape microbiota
diet, genes, antibiotics, geography, exposures
bifidobacterium breaks down ___
prebiotics (oligosacc)
w/ intro of solid foods, ___ decrease and ___ increase
bifido/lacto ; bacteriodetes and firmicutes
reach steady state at about ___ yrs
3
what happens to microbiome of older adults?
pro-inflammtory state, ^ DNA damage and immune compromise
what can help microbiota (not diet)?
pets
what med influences microbiota?
proton pump inhibitors
healthy gut = ____; inflammatory = _____
symbiosis; dysbiosis
what is target intake for resistant starch?
5g/meal
probiotics (lacto, saccharomyces) associated with reduction in ____
AAD (antibiotic associated diarrhea)
what are prebiotics?
selectively fermented ingredient resulting in specific changes in comp/activity of GI microflora, conferring health benefits
types of prebiotics?
inulin, GOS
