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Thread: Our bacteria

  1. #1 Our bacteria 
    Moderator Moderator AlexP's Avatar
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    How early in life are we endowed with our intestinal bacteria, and how? Is it just present in certain foods that we eat? That's the only way I can see it...


    "There is a kind of lazy pleasure in useless and out-of-the-way erudition." -Jorge Luis Borges
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    Intestinal Bacteria in the Newborn Baby


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    Forum Cosmic Wizard i_feel_tiredsleepy's Avatar
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    You are colonized almost immediately by the vaginal flora, (it has been shown children delivered by caesarian have different flora), and then you get further colonized through the mothers saliva, and the rest you gain eventually through food and contact with other people.

    Edit: Harold's link is actually very good,
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    My digestive system loves L. acidophilus...I just found out that it ferments lactose into lactic acid and assists in the production of niacin, folic acid, and pyridoxine. It also can assist in bile deconjugation, separating amino acids from bile acids, which can then be recycled by the body.
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  6. #5  
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    Quote Originally Posted by i_feel_tiredsleepy
    ...then you get further colonized through the mothers saliva ...
    Do human females lick their young? I would have thought breast feeding would be the major route to intestinal colonization at any rate.
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    actually as I understand it, skin to skin (to mouth) or direct skin to mouth is a good method too; Any intestinal fauna are actually present on the cuticle/skin/whatever of the animal in question to some extent.

    For example, this is why we SHOULD wash so thoroughly after touching a frog OR avoid putting a gecko in our mouth- their intestines use salmonella instead of E.coli; I suppose they really should wash after touching us too.
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    That's really interesting. I never knew exactly what was so bad about touching reptiles and amphibians. Are intestinal bacteria typically on the skin because they're found in the intestines, or because since they're tolerated in the intestines they're not rejected when they end up on the skin? If you see what I'm saying... Basically, do they move from the gut to the skin or is their presence on the skin simply tolerated because they're already known to us because they're in the gut?
    "There is a kind of lazy pleasure in useless and out-of-the-way erudition." -Jorge Luis Borges
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    It's not "bad" to touch reptiles at all...just don't be an idiot about it. The chance of any sickness coming from it is nil unless you let it poop in your mouth.

    Amphibians are worse to touch, obviously, cause of their moist skin, but they get the raw end of that deal- your oils really hurt their skin and they breathe through their skin (well, not always exclusively).

    Here's how it works- You poop, or fart or something...and then a small bit is aerosolized. It colonizes your skin, lives there with the myriad of other bacteria. The skin doesn't tolerate them per se; it's more of a situtation of them not really hurting anything so your skin doesn't really care (not that it has that many options for an innate immune response anyways).
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  10. #9  
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    After baby starts spoon feeding you can give the baby adult breath by sharing the spoon. I even heard advice that if you never share a spoon or allow any saliva contact right into childhood tooth decay won't be an issue. But I don't believe that one.

    Introducing different solid foods is interesting when you're also changing diapers. The first time anything goes in it comes out exactly the same. After a while baby's "brew" gets better at digesting that. Then introduce another food. And so on. The biggy is red meat and some parents hold off on that because the diapers thenceforth smell ...mature.

    Colic sure looks like bacterial imbalance to me. I'm surprised there's still confusion about this, with yogurt being mere folklore.

    With bacteria and immunity development in mind, my wife and I raised our baby "dirty" but not too dirty. In other words we'd let him gum a garden carrot but we wouldn't let him play in the kitty litter. It did no harm anyway. He's been healthy.

    Quote Originally Posted by free radical
    Do human females lick their young?
    Practically, LOL. There is much exchange of mucus. I've used my own mouth to suck the snot out of my baby's nose. One just does these things without thinking.
    A pong by any other name is still a pong. -williampinn
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    Quote Originally Posted by Pong

    Quote Originally Posted by free radical
    Do human females lick their young?
    Practically, LOL. There is much exchange of mucus. I've used my own mouth to suck the snot out of my baby's nose. One just does these things without thinking.
    WHAT?

    Q-TIP!
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  12. #11  
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    That just pushes it back. But we got a nasal sucker later. I just couldn't stand to hear my baby snorkeling through a stuffy nose. They don't know how to blow it out.
    A pong by any other name is still a pong. -williampinn
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  13. #12  
    Forum Cosmic Wizard i_feel_tiredsleepy's Avatar
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    Quote Originally Posted by free radical
    Quote Originally Posted by i_feel_tiredsleepy
    ...then you get further colonized through the mothers saliva ...
    Do human females lick their young? I would have thought breast feeding would be the major route to intestinal colonization at any rate.
    A prime example is Helicobacter pylorii, which is a resident of the stomach mucosa, and is not found in the intestines, it's only rout for colonization is through saliva. Phylogenetic analysis has shown that the same strain is usually found in both mother and child.
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  14. #13  
    Moderator Moderator AlexP's Avatar
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    Quote Originally Posted by mormoopid
    It's not "bad" to touch reptiles at all...just don't be an idiot about it. The chance of any sickness coming from it is nil unless you let it poop in your mouth.
    Well yeah, it's not "bad." I've spent some quality time with various snakes and turtles and things at the nature center I volunteer at. Just why it's particularly smart to wash your hands after handling them is what I should've said.
    "There is a kind of lazy pleasure in useless and out-of-the-way erudition." -Jorge Luis Borges
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    Forum Cosmic Wizard i_feel_tiredsleepy's Avatar
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    You'de be surprised where fecal matter can get to, just look at urinary tract infections, the primary cause being UPEC (uropathogenic e. coli), and it has been shown that a person is usually infected by the same strain found in their feces.
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    Forum Cosmic Wizard spuriousmonkey's Avatar
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    Allegedly you have to store your toothbrush at least 5 meters from your toilet if you want to keep it fecal matter free.
    "Kill them all and let God sort them out."

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  17. #16  
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    Ah Im not that bothered. better just to keep it all nearby for convenience
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