microbiome Flashcards

1
Q

human body has about ___ trillion human cells and ___ trillion microbes

A

30 ; 39

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2
Q

entire habitat, including the microorgs, their genomes, and the surrounding enviro conditions

A

microbiome

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3
Q

microbiome ___ is associated with greater overall health and wellbeing

A

richness

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4
Q

microbiome has biomass of ___

A

2kg

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5
Q

nutrition roles of microbiota:

A

SCFAs, vit K, some B vitamins

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6
Q

factors that influence microbiota?

A

diet, genes, antibiotics, geography, exposures (exercises, intro to solids, C section, formula fed)

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7
Q

why better to have vaginal birth?

A

exposed to birth canal, swallows vag fluid, bacteria colonizes gut; in c-section, exposed to hospital enviro which is pathogenic and negative health effects

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8
Q

swabbing baby with vag fluid if C section results In ___% colonization

A

60

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9
Q

first __ years of life critical to the development of microbiome

A

3

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10
Q

why microbiome in older adults appear pro-inflammatory state with increased potential for DNA damage and immune compromise?

A

when moved to LTC, diet less diverse so microbiome less varied; tend to be on more meds (ie. antibiotics), reduced stomach acid

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11
Q

why do PPIs cause issues?

A

reduce acid in stomach–>pathogens that should have been killed are translocating

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12
Q

why pets have positive effect?

A

more varied microbiota cuz share with pets

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13
Q

pro inflammatory nutrients

A

omega 6s and saturated fat

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14
Q

^ animal protein (esp red meat) means:

A

reduced SFCA

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15
Q

examples of prebiotics

A

inulin, FOS, GOS

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16
Q

target intake of resistant starch:

A

5g/meal (incorporate pulses)

17
Q

why supplement with prebiotics

A

promote growth of specific members of resident gut microbiota, stim CSFA production, reduce pH and help pathogen exclusion

18
Q

live micro-organisms that when administered in adequate amounts, confer a health benefit on the host

A

probiotics

19
Q

5 factors of classification of probiotics?

A

human origin, safe, survival, colonize, health benefit

20
Q

live active culture vs probiotic?

A

strain specificity, proven health benefit, regulate term, patented strains (live active culture less strict definition)

21
Q

products that contain both prebiotics and probiotics are called:

A

synbiotics

22
Q

important factors of probiotic supplements?

A

strain, dose, product

23
Q

probiotics are associated with reduction in ___

A

antibiotic associated diarrhea

24
Q

how to take probiotics to prevent AAD?

A

take within 48 hours of taking antibiotic, then space out within 2 hour intervals, continue until 2 weeks after discontinuing antibiotics

25
Q

probiotics administered in addition to ____ result in clear reductions in duration and severity of diarrhea in infants/children

A

rehydration therapy

26
Q

probiotics should not be used in these populations

A

central venous catheters, artificial heart valves, low WBC count, short bowel syndrome, HIV pt, transplant pt, autoimmune disorders, extremely low birth weight infants, milk allergy

27
Q

key messages to recommend to client to enhance gut microbiome?

A

varied diet lots of fruit and veg, include plant proteins, probiotics yogurt /fermented foods, probiotic supplements, exercise, reduce processed foods, fibre (resistance starch, prebiotic)

28
Q

gut brain connection influenced in part by the production of ___ in the gut

A

serotonin

29
Q

oils that are good for microbiome?

A

olive

30
Q

this condition they don’t produce mucus in GI (inflammatory response)

A

ulcerative colitis

31
Q

these foods aggravate colitis

A

milk fat and corn oil