Effects of microbe on body Flashcards
What is a prebiotic made up of?
healthy flora
What is a probiotic made up of?
live microbial additions
What is the most common strain of probiotic?
lactobacillus and bifidobacterium
Common foods with probiotics in them?
yogurt, dairy
What trait does an effective probiotic have?
has to be able to withstand upper gastro. tract and low ph
What noninfectious disorders or condition’s do probiotics support?
-constipation
-IBS (irritable bowel syndrome)
-IBD (inflammatory bowel syndrome)
What infectious diseases or conditions do probiotics support?
-diarrhea
What are the common targets (within the body) for prebiotics?
-bifidobacterium
-lactobacillus
-aim to support gut health
Main types of prebiotics?
-fructooligosaccharides
-galactooligosacchardies
-lactulose
What food is fructooligossachardies found in?
-found in onion, garlic, tomato, wheat
What food is galactooligosaccharides found in?
-fermented milk
What food is lactulose found in?
-lactose
What role does bifobacteria have on carbohydrates?
ferment dietary fiber to short chain fatty acids
What is the role of bifodobacteria?
-reduce pathogenic load
-50% of intestinal microflora
What role does lactobacilli have on carbohydrates?
-turn dietary fiber to lactic acid and short chain fatty acids
What is saccharomuyces boulardii?
yeast
What is the role of lactobacilli?
-reduce pathogenic load
-GALT production
-secretion of SIgA
What is the role of yeast?
-GALT production
-secretion SIgA
-support brush border enzymes
What are the common short chain fatty acids, which are fermentable dietary fibers?
acetate, propinate and butrayte
What metabolizes butyrate?
acetyl coach within the colonocytes
What are common dietary and medical practices that disturb the colon?
-low fiber
-high starch
-low glutamine
What is the definition for prebiotics?
non-digestible fermentable carbohydrates that encourage beneficial change in the hosts microbial balance
Define probiotics?
oral dietary supplements containing live microbes that benefit host
Where is bifidobacteria found in?
human breast milk
Fermentation of dietary fibers in the colon results in?
production of short chain fatty acids
What is the primary energy source for colonocytes?
acteyl coa
What happens if the body is low in butyrate?
-decrease in tight junction function
-decrease in acetyl coa
-decrease in dietary fiber metabolism
-mimic auto-immune diseases
In relation to the colon, what does a low fiber diet cause?
-alkalization within colon (decrease acid)
-increase water uptake by coloncytes
-increase carcinogen exposure
-increase stool hardness and constipation
What does the nervous system release in the presence of food?
acetylcholine
