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Common chemical may be to blame for dead frogs
A common chemical derived from vitamin A and key to the development of =
all animals, from fish to humans, may be causing gross deformities in =
frogs across the U.S. and the world, biologists said Wednesday. They =
said the weird abnormalities seen in dying frogs in an otherwise =
pristine Minnesota environment were clearly due to retinoids - chemicals =
perhaps best known as skin and acne treatments. But they are also =
powerful teratogens - compounds that cause birth defects. Because of =
their permeable skin, and because frogs are born and develop in the =
water, they are much more sensitive to the environment. See =
www.infobeat.com/stories/cgi/story.cgi?id=3D2555413366-d19
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<CENTER><A name=3Dstory74164:9><B><U>Common chemical may be to blame for =
dead=20
frogs</U></B></A></CENTER><BR>A common chemical derived from vitamin A =
and key=20
to the development of all animals, from fish to humans, may be causing =
gross=20
deformities in frogs across the U.S. and the world, biologists said =
Wednesday.=20
They said the weird abnormalities seen in dying frogs in an otherwise =
pristine=20
Minnesota environment were clearly due to retinoids - chemicals perhaps =
best=20
known as skin and acne treatments. But they are also powerful teratogens =
-=20
compounds that cause birth defects. Because of their permeable skin, and =
because=20
frogs are born and develop in the water, they are much more sensitive to =
the=20
environment. See <U><FONT color=3D#0000ff><A=20
href=3D"http://www.infobeat.com/stories/cgi/story.cgi?id=3D2555413366-d19=
">www.infobeat.com/stories/cgi/story.cgi?id=3D2555413366-d19</A></FONT></=
U></DIV></BODY></HTML>
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