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20 Cards in this Set
- Front
- Back
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Is H pylori bacteria endangered? Why or why not?
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yes it is because of improved hygiene and antibiotics
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What have the disappearance of h pylori bacteria been linked to?
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obesity and cancer of the esophagus and asthma
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How does h pylori help the stomach? What happens when stomach side of loop is stronger?
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helps regulate stomach acid. Creates more stomach acid so bacteria creates cag to reduce the acid but also what notorious for causing ulcers and cancers
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How long have the relatives to h pylori been in mammalian stomachs? How long has h pylori been around? What percent did it affect 50 years ago vs now?
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since the beginning of mammals - 150 million years ago. h pylori around for 60,000 years and 50 years ago affected 80-70% of pop. now only affects 5% children
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What will happen if we eliminate the h pylori bacteria?
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the stomach acid will get stronger and more chance of spilling into esophagus, causing gastroesophagal reflux disease which can cause cancer
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What is likely hood children who had h pylori bacteria will get asthma?
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60% less likely because makes their immune sytem more robust
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What 2 hormones does h pylori affect?
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2 that control appetite. ghrelin, which makes you feel hungry, and leptin, which does the opposite. People without H. pylori produce more ghrelin than those with so could be why obesity becoming common.
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When do you want the h pylori bacteria eradicated in your body? When don't you?
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if prone to cancer or ulcers. Don't want it eradicated if prone to asthma or obesity
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Are h pylori genetically variable?
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yes not all strains make cag.
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What is vision for future with h pylori bacteria and babies?
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doctors run routine checks on babies’ genes to find out their susceptibilities, and then colonise those babies’ stomachs with the strain or strains that are best for them.
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Do bacteria, fungi and protozoa outnumber our own cells?
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yes 100 to 1
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How do microbes affect our bodies in normal ways?
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Synthesize vitamins in our guts, regulate our immune systems, regulate our serotonin levels, influence how we digest food and how much we eat and what we crave.
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What is MRSA and who is it especially known for affecting?
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a stronger version of staph bacteria fast moving and hard to diagnose. known for affecting football players because get cuts and exercise for long periods of time (said to lower immune system) also teenagers sharing cell phones
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How many Americans out of 5 wash hands properly?
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1
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What do they say about antibacterial hand gels?
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used as stress relievers people can't protect themselves from things such as terrorist attacks but feel they can protect themselves from germs
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How do alcohol gels kill germs?
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dry them out but can't get to them if hands aren't properly washed and can not kill superbugs such as MRSA
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What is goal of Human Microbiome Project?
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irst step requires sampling every crevice of 100 people of varying ages from a variety of climates and cultures. But the mix of particular species and strains will probably turn out to be unique to each individual, a product of chance, gender. The most intriguing question is how microbes interact with each other and with our own cells.
it will fill in a lot of blanks about human health—and human disease. |
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What is different about intestinal bacteria?
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virtual organ of the body with different DNA
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Do bacteria help extract calories from starch?
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yes they do and more effectively than body enzymes
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What does a study suggesting that severe emotional stress causes weight gain conclude?
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it triggers an explosion in the population of B. theta, the starch-digesting bacteria associated with weight gain.
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