eileen

I need some help with this one.... do you think this article is insinuating that we should upgrade the significance of the melanin reaction and that it may be worthwhile to search for further cases where it prevents bacterial growth in humans "OR" other fish? lol
Don are you out there? :)


Public release date: 24-Sep-2007
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Kenneth Söderhäll
Uppsala University

What gives us sunburn protects crayfish against bacteria
The production of melanin gives us sunburns, but it also helps invertebrate animals to encapsulate attacking fungi and parasites. Uppsala University researchers, in collaboration with Korean and Thai colleagues, can now show that melanin also protects against bacterial infections, at least in crayfish. The study is published in the latest Net edition of Journal of Biological Chemistry.
The production of melanin is an important protective reaction that gives us a sunburn, for instance. In invertebrate animals it has long been observed that parasites, fungi, and other invaders become encapsulated in melanin. In many animals this can be seen as black-brown spots on the shell that show that the animal has had an infection.
"In mosquitoes that can harbor the malaria parasite it has also been observed that the mosquito´s ability to form such melanin capsules often determines whether it will be able to spread the disease to humans," says Haipeng Liu.
On the other hand, the possible effect of melanin production on bacterial infections has been intensively debated. In the current study the scientists show, by manipulating the genetic expression of the melanin-producing enzyme, that effective melanin production is crucial to the ability of freshwater crayfish to survive an infection of an extremely dangerous bacteria for them, Aeromonas hydrophila.
"The findings indicate that we should upgrade the significance of the melanin reaction and that it may be worthwhile to search for further cases where it prevents bacterial growth," says Haipeng Liu.

http://www.eurekalert.org/pub_releas...-wgu092407.php

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under-exposure to uv rays is as dangerous as over-exposure...This is "D" life! (eileen)

IronSheik

these people crazy

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Break your back in the camel clutch and make you humble

eileen

everybody crazy now you crazy to

__________________
under-exposure to uv rays is as dangerous as over-exposure...This is "D" life! (eileen)

IronSheik

In iranian sun you need many melanin or you turn to little girl

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Break your back in the camel clutch and make you humble

mr belvedere

Don't mess with the Iron Sheik or he'll butt slam your candy *** from the second rope and then feed you to his bisexual, carnivorous, pro-abortion camel! hehe (Don't worry, there's no such thing as "carnivorous" camels ...) On a serious note here, the article is in error in the very second line: "The production of melanin gives us sunburns ...". Over-radiated skin cells is what gives us "sun burns". Afterall, you, and me even, can "produce melanin" without achieving a sunburn, right? Right. And without further picking apart the article, let me just say this in response to Eileen's question: No.

I believe, and please don't quote me here, that there is ample research supporting the positive effects of ultra-violet exposure in humans - specifically when it comes to it's effects on the immune system and other mundane human things like attractiveness and attitude; but I digress. More specifically addressing the "bacteria" aspect of the article and Eileen's question, let me just say that all of us are infested with "bacteria" (some in more places than others, hehe, God bless'em!), and it's good, and it's natural for Mother Nature's sake! ~sheesh~ Now of course, there is some bacteria that can cause problems for some folks; but it's nothing that sunlight is going to help.

Again, like with the whole Vit D angle, I have to say that this particular study does nothing for our cause. It's encouraging in a way, for crayfish maybe; but I don't see the US government trying to regulate them out of existence.

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"A dusty bible leads to a dirty life ..." -Synonymous