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Author Topic: See the Transparent Frogs! - Created by the Japanese  (Read 1328 times)

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See the Transparent Frogs! - Created by the Japanese
« on: October 01, 2007, 10:35:19 pm »
See the Transparent Frogs! - Created by the Japanese
By: Stefan Anitei, Science Editor - Softpedia


The Japanese transparent frog

This newly engineered amphibian could save thousands of frogs from massacre worldwide, no matter if for dissections in biology classes or medical research. A Japanese team succeeded in producing see-through frogs, so you can see their organs, blood vessels and eggs without the need of removing skin and muscles.

"You can see through the skin how organs grow, how cancer starts and develops," said the lead researcher Masayuki Sumida, professor at the Institute for Amphibian Biology of Hiroshima University.

"You can watch organs of the same frog over its entire life as you don't have to dissect it. The researcher can also observe how toxins affect bones, livers and other organs at lower costs," Sumida told AFP.


The Japanese transparent frog

Animal rights activists are already increasingly making pressures regarding humane alternatives for dissections, like computer simulations.

In nature, there are also some small see-through fish, like glassy fish of the family Ambassidae or the glass catfish of the Kryptopterus genus (both groups from southern Asia), and even semitransparent frogs, the glass frogs of the Cemtrolenidae family, found in tropical America and closely related to tree frogs.

The new transparent frog was obtained from Japanese brown frogs (Rana japonica), whose backs are normally ochre or brown. Two types of recessive genes produce the lack of coloration.

Sumida's team bred two frogs carrying recessive genes through artificial insemination and the first generation looked normal as the colorless genes were masked by normal color genes. But when the hybrids where interbred, they produced frogs with transparent skin from the tadpole stage, in a ratio of 1:16 (from 16 eggs, one produced a transparent frog).


The Japanese transparent tadpole

"You can see dramatic changes of organs when tadpoles mutate into frogs. Such frogs could theoretically exist in the wild but it is "virtually impossible" they would naturally inherit so many recessive genes," Sumida said.

The transparent frogs are fertile, producing only transparent frogs when interbred, but the offspring of their offspring die soon after hatching.

"As they have two sets of recessive genes, something wrong must kick in and kill them," Sumida said.


A glass frog (Centrolene grandisonae)

"Researchers could also inject into the transparent frogs an illuminating protein attached to a gene, which would light up the gene once it manifests -- for example, showing at what stage cancer starts. It would be unrealistic to apply the same method to mammals such as mice as their skin structure is different." said Sumida.

The new frog is the first four-legged transparent animal created by scientists.

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Re: See the Transparent Frogs! - Created by the Japanese
« Reply #1 on: October 01, 2007, 10:36:31 pm »
that is really cute...


ija to mga baby???

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hazel

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Re: See the Transparent Frogs! - Created by the Japanese
« Reply #2 on: October 02, 2007, 03:20:31 am »

himos pud...hahaha pero murag lain man hikapon. ;D

mokaon mo ug pakra? kanang baki sa basakan...

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Re: See the Transparent Frogs! - Created by the Japanese
« Reply #3 on: October 02, 2007, 03:29:33 am »
wa ko kasulay ana.

pero delicacy baja pod na diri sa Merika...

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hazel

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Re: See the Transparent Frogs! - Created by the Japanese
« Reply #4 on: October 02, 2007, 03:34:00 am »

kaon man mi ana sa leyte...lami kaajo bella..prituhon pinakaging. :D

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Re: See the Transparent Frogs! - Created by the Japanese
« Reply #5 on: October 02, 2007, 03:36:20 am »
pwede sad na himoong tinuwa!

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hazel

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Re: See the Transparent Frogs! - Created by the Japanese
« Reply #6 on: October 02, 2007, 03:38:33 am »

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Re: See the Transparent Frogs! - Created by the Japanese
« Reply #7 on: October 02, 2007, 03:46:43 am »
mao jud na among giluto sa among jungle survival training! hehehehehe! didto nagsugod akong ulcer kay di jud nako kaya mokaon ug nilagang baki! heheheheheh!

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Re: See the Transparent Frogs! - Created by the Japanese
« Reply #8 on: October 02, 2007, 04:24:21 am »

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