Some links that may prove helpful to you.
Follow the order of links.
http://www.biochem.northwestern.edu/holmgren/Glossary/Definitions/Def-D/deuterostomes.html
http://www.ucmp.berkeley.edu/phyla/deuterostomia.html
http://en.wikipedia.org/wiki/Deuterostomes
http://www.evolutionpages.com/intro_evolution.htm
http://science.kennesaw.edu/biophys/biodiversity/animalia/stomes.htm
Tuesday, December 13, 2005
Yuck factor
Mice created with human brain cells
Posted on Tue, Dec. 13, 2005 http://www.kansascity.com/mld/kansascity/13391863.htm
SAN FRANCISCO - Add another creation to the strange scientific menagerie where animal species are being mixed together in ever more exotic combinations. Scientists announced Monday that they had created mice with small amounts of human brain cells in an effort to make realistic models of neurological disorders such as Parkinson's disease.
Led by Fred Gage of the Salk Institute in San Diego, the researchers created the mice by injecting about 100,000 human embryonic stem cells per mouse into the brains of 14-day-old rodent embryos.
Those mice were each born with about 0.1 percent of human cells in each of their heads, a trace amount that doesn't remotely come close to "humanizing" the rodents.
"This illustrate that injecting human stem cells into mouse brains doesn't restructure the brain," Gage said.
Still, the work adds to the growing ethical concerns of mixing human and animal cells when it comes to stem cell and cloning research. After all, mice are 97.5 percent genetically identical to humans.
"The worry is if you humanize them too much you cross certain boundaries," said David Magnus, director of the Stanford Medical Center for Biomedical Ethics. "But I don't think this research comes even close to that."
Researchers are nevertheless beginning to bump up against what bioethicists call the "yuck factor."
Posted on Tue, Dec. 13, 2005 http://www.kansascity.com/mld/kansascity/13391863.htm
SAN FRANCISCO - Add another creation to the strange scientific menagerie where animal species are being mixed together in ever more exotic combinations. Scientists announced Monday that they had created mice with small amounts of human brain cells in an effort to make realistic models of neurological disorders such as Parkinson's disease.
Led by Fred Gage of the Salk Institute in San Diego, the researchers created the mice by injecting about 100,000 human embryonic stem cells per mouse into the brains of 14-day-old rodent embryos.
Those mice were each born with about 0.1 percent of human cells in each of their heads, a trace amount that doesn't remotely come close to "humanizing" the rodents.
"This illustrate that injecting human stem cells into mouse brains doesn't restructure the brain," Gage said.
Still, the work adds to the growing ethical concerns of mixing human and animal cells when it comes to stem cell and cloning research. After all, mice are 97.5 percent genetically identical to humans.
"The worry is if you humanize them too much you cross certain boundaries," said David Magnus, director of the Stanford Medical Center for Biomedical Ethics. "But I don't think this research comes even close to that."
Researchers are nevertheless beginning to bump up against what bioethicists call the "yuck factor."
Sunday, December 04, 2005
Liberatae Mae
I'm liberated.
Partially.
Macritche cleared the air
Scouting relived the moments
Back to nature i go.
I'm blessed.
Everythings perfect.
Almost.
Need to run run run!
Photos to be out soon!
=)
Partially.
Macritche cleared the air
Scouting relived the moments
Back to nature i go.
I'm blessed.
Everythings perfect.
Almost.
Need to run run run!
Photos to be out soon!
=)
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