--- In bali-bali@yahoogroups.com, Ikranagara <ikra_twin@...> wrote:
>
> Sains menjadi harapan satu-satunya unjtuk menjawab berbagai
pertanyaan yang selama ini belum terjawab. Misteri demi misterri
dibongkar oleh saintis dari waktu ke waktu, maka berbahagialah
generasi-generasi yang akan datang, mungkin mereka yang belum lahir,
karena suatu ketika tidak ada lagi misteri alam yang tersisa dalam
hidup kita ini, termasuk rahasia umur... WOW!
>
> Dari:
>
http://www.webmd.com/skin-problems-and-treatments/news/20090225/why-hair-goes-gray
>
> Why Hair Goes Gray
> Study Blames a Chain Reaction That Makes Hair Bleach Itself From the
Inside Out
> By Miranda Hitti
> WebMD Health News
> Reviewed by Louise Chang, MD
>
>
> Feb. 25, 2009 -- Scientists may have figured out why hair turns
gray, and their finding may open the door to new anti-graying strategies.
> New research shows that hair turns gray as a result of a chemical
chain reaction that causes hair to bleach itself from the inside out.
> The process starts when there is a dip in levels of an enzyme called
catalase. That catalase shortfall means that the hydrogen peroxide
that naturally occurs in hair can't be broken down. So hydrogen
peroxide builds up in the hair, and because other enzymes that would
repair hydrogen peroxide's damage are also in short supply, the hair
goes gray.
> Putting the brakes on that chemical chain reaction "could have great
implications in the hair graying scenario in humans," write the
researchers, who included Karin Schallreuter, a professor clinical and
experimental dermatology at England's University of Bradford.
> The study appears online in The FASEB Journal; the FASEB is the
Federation of American Societies for Experimental Biology.
>
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