BSE, Maul- u. Klaumich-Seuche, Klimakatastrophe... Hiiiiiilfeeee !!!!! - 500 Beiträge pro Seite

[RudiRich]

Ich hab meine Konsequenzen gezogen:

Nur noch Möhren, Tofu, Bier, Solarzellen

mit Senf.

Ne, ganz im Ernst. So geht`s nicht weiter.

Grün ist die Hoffnung.

RR

[telebim]

Hai.....

sag das mal den zig mil. anderen Leutz auser uns

bye b<e

[flussaufwerz]

heute im bioladen zeigt ein berliner auf einen berliner
und sagt er bekommt diesen pfannenkuchen (krapfen)

grüsse von der donau
flussaufwerz

[MATT_KAU_DIE_SIEHTS]

Ich glaub, hier bin ich richtig! Muuhhh . . .

[flussaufwerz]

Saturday February 24 9:51 AM ET
Scientists Craft Mouse with Human Brain
Cells

By Andrew Quinn

SAN FRANCISCO (Reuters) - U.S. researchers have produced laboratory
mice with human brain cells, marking a potential step toward developing
treatments for human brain disease like Alzheimer`s but promising to fuel fresh
debate over the evolving ethics of bioengineering.

The research at California biotechnology company StemCells Inc . breaks new
ground by demonstrating that human brain stem cells can be induced to grow
within a mouse`s skull, scientists said on Friday.

``We are not recreating a human brain. We`re really just trying to understand
how these stem cells can function, and how they can be used in the treatment
of specific diseases,`` said Ann Tsukamoto, vice president of scientific
operations at StemCells Inc.

Irving Weissman, a Stanford university professor involved in the two-year
research project, said the next step could be to produce mice with brains made
up almost entirely of human cells -- although he said there would have to be a
thorough ethical review before this step is taken.

``You would want to ask the ethicist what percentage of the brain would be
human cells before you start worrying, and if you start worrying, what would
you start worrying about,`` Weissman said.

The California study involved isolating human stem cells in the laboratory and
then introducing them into mice. As the mice matured, the human stem cells --
``master cells`` that can develop into any other type of cell -- grew into a full
range of specialized cells throughout each mouse brain.

``It looks like human cells can follow the developmental instructions put in by
the mouse brain. They are making human components in what is clearly a
mouse brain,`` Weissman said.

The researchers believe that these mice could be used to test treatments for
human brain diseases such as Parkinsons and Alzheimer`s, although these tests
have not yet been undertaken.

Tsukamoto added that the experiment also demonstrated that StemCell Inc`s
process for isolating and developing human stem cells was viable, and that cell
banks could be established for future transplantation into humans.

``We`re of course moving this into the development phase, and looking at which
disease indications these cells would be best used for in preclinical trials,`` she
said.

Both scientists stressed that their research, while marking a new breakthrough
in the controversial world of stem cell research, was in no way aimed at
blurring the lines between human and animal.

But Weissman added that he had already requested a review panel to look at
the research to determine if there may be ethical problems in taking the work
further.

``It is not the objective to go make mice with human brains,`` Weissman said.
``(But) it is in the domain of the ethicists, not the experimenters, to figure out
what our limits are.``




@rr schrei nicht so laut sonst kommen noch mehr von
diesen herren die uns retten wollen mit mäusen mit
menschlichen gehirnen.