Posted on 07/24/2006 1:32:23 PM PDT by Neville72
(via Kurzweilai.net)
New Haven, Conn. Researchers at Yale School of Medicine and the University of Oxford have identified the very first neurons in what develops into the cerebral cortex, the part of the brain that makes humans human.
The findings published in Nature Neuroscience show that the first neurons, or predecessors, as the researchers called them, are in place 31 days after fertilization. This is much earlier than previously thought and well before development of arms, legs or eyes.
These neurons, described here for the first time, precede all other known cell types of the developing cortex, the researchers said in their paper. These precocious predecessor neurons might be important in the cascade of developmental events leading to the formation of the human cerebral cortex.
The cerebral cortex is largely responsible for human cognition, playing an essential role in perception, memory, thought, language, mental ability, intellect and consciousness. It is composed of about 20 billion neurons and accounts for 40 percent of the brains weight.
Co-author Pasko Rakic, chair of the Department of Neurobiology and director of the Kavli Institute of Neuroscience at Yale, said the use of highly specific cell markers led the team to the surprising discovery of new types of neurons in the prospective cerebral cortex.
We hypothesize that these predecessor neurons may be a transient population involved in determining the number of functional radial units including the human specific regions of the cerebral cortex mediating higher cognitive functions, Rakic said. As a next step it is essential to determine their neural stem cell lineage, pattern of gene expression, developmental role and eventual fate.
Pinpointing the early development of the cerebral cortex may help in understanding the many developmental disorders of higher brain function, such as autism, schizophrenia, childhood epilepsy, developmental dyslexia and mental retardation. It also may explain how the human brain developed differently from that of other species.
Until recently it was thought that cortical neurons were generated locally, but this research team describes a distinctive, widespread population of neurons situated beneath the surface of the human embryonic forebrain even before complete closure of the neural tube.
Predecessor cells, unlike mature nerve cells, do not have synaptic connection with other neurons. They do have long processes, or tails, with one stretching out in front of the cell body and the other trailing behind. Analysis of the skeleton of these cells suggests that they migrate upwards in the surface of the developing brain and enter the future cortex.
The researchers found that the processes form a vast network and they speculate that this web of processes might be used to control neuronal production, guide the migration of cells and determine the regional specification of the cerebral cortex.
Co-authors include Irina Bystron, Zoltan Molnar and Colin Blakemore of Oxford.
Nature Neuroscience 9: 880-886 (July 2006)
Forty million infants here...mind boggling to think of the number.
How many of those babies would have created, invented, wrote, and discovered.
We might have had alternate fuels, peace, space exploration and new forms of medicine by now if the world hadn't been so god-awful selfish.
You reap what you sow.
I wonder if it would be now possible to use the "cruel and unusual punishment" clause as grounds to revisit the courts in an attempt to overturn Roe vs Wade?
ping
The "party of science", "reality-based-community", or whatever the liberals call themselves, will ignore this and continue to lie. They can call themselves whatever they like, but they're really the lie-based-community.
The New Old Math
40 million dead babies --> 30 million illegal immigrants
6 million dead Jews --> 20 million angry muslims
Here is a graphical representation of the undifferentiated tissue mass before passing through the magic vagina:
And after squeezing through the magic vagina:
And then apply the same clause in each state.
Post 8: brilliant, ferocious satire. Best post of the month.
Isn't it a sin to knowingly spew nonsense? So a scientific finding which advances knowledge is some kind of lie? The discovery was published in an established scientific journal, how can that be ignored?
Google Nature neuroscience and edge-u-kate yourownself. Knothead.
Thank you for this thread, Neville.
This is very good information!
re: post #8
WTG!!!
No this does not say that and would have no effect on Aborts even if it did. It is speaking of "precursor" cells not a brain. There are precursor lung cells but no lungs precursor stomach cells but no stomach too.
I don't think you understood my post. The liberals like to call themselves the reality-based community and they like to call themselves the party of science. See DU and Hillary Clinton's speech about Bush's veto last week, respectively. They, the liberals, will ignore science if it does not fit their generally pro-death, socialist worldview. This might not fit with their abortion-on-demand theology to a clear thinker, so they will ignore it.
Basically, all of liberalism is based on lies, so when they ignore evidence contrary to their talking points, they just spew their dogmatic lies.
Here are some lies that the left likes to spew:
Science is on our side more and more. this is a great thing friends !
40,000,000 aborted babies in the USA.
32,000,000 illegal alien workers imported into the USA.
We can all do the math.
Our own selfish social policies will, in the end, destroy this nation. We can only blame ourselves.
You're quite welcome. I consider this to be the most important post I've ever made here.
We now KNOW without a shred of doubt that at the end of the first trimester of pregnancy, a point in time when a woman can for any reason or any whim have her child executed, that child's brain has been developing FOR TWO MONTHS!!!
Roe needs to be challenged NOW with this new information in hand.
I nearly fell out of my chair reading your post...Funny and brilliant.
If you watch cable after 11pm you'll start seeing the infomercials.
I don't expect this news story, regardless of where it is published, or any other new discoveries, to convince them to stop lying. Killing is their business, and business is good.
LOL.... brilliant!
And Who made those "predecessor neurons" before day 31?
Thanks for saving us the trouble.
That's witty. No, really, Knothead.
You apparently misunderstood the post to which you replied. Making the "Knothead" sobriquet entirely ironic.
That old saying 'Life begins at 30' was pretty accurate.
Unfortuantely most people thought it meant 30 YEARS, not 30 DAYS.
From where did the authors of this article get 31 day-old embryos to slice-and-dice for their research? Just wondering.
MichiganConservative: you da MAN!
These precocious predecessor neurons might be important in the cascade of developmental events leading to the formation of the human cerebral cortex.
... or they might not ...
"From where did the authors of this article get 31 day-old embryos to slice-and-dice for their research? Just wondering. "
Interesting point ... It appears that many here are not opposed to using the knowledge gained from this research
fyi, I received this via e-mail from Father Pavone:
the US Senate is voting tomorrow,
July 25, on the matter of which the column speaks - a bill that can drastically cut
into the abortion business in this country. Please read the column carefully, and
then please make two phone calls - one to each of your US Senators, to tell them to
vote for this bill.
The bill is the Child Custody Protection Act, Senate bill 403, and it would make it
a crime to take a minor to another state's abortion clinic to bypass a parental
involvement law in their own state.
The Senators should be urged to vote for the bill as it is, without accepting any
amendments. The number is the same: 202-224-3121.
From where did the authors of this article get 31 day-old embryos to slice-and-dice for their research? Just wondering.
RS replied:
Interesting point ... It appears that many here are not opposed to using the knowledge gained from this research
Tinian replies to RS:
It's a baffling why they couldn't connect the dots.
"It's a baffling why they couldn't connect the dots."
Think it's just a matter of not wanting to see it.
They aren't even using the knowledge correctly. The precursor cells aren't even connected together, thus cognition would be impossible.
I'm pro life, but the neurons aren't connected together yet, so the unborn wouldn't be aware.
That's not the point. No one is claiming they're "aware" at 31 days.
But it stands to reason if their brain has been developing for 60 days by the end of the first trimester, those neuronal connections WOULD be there.
What this finnding gives us is a date certain when brain cells start to develop--in the researchers own words "much earlier" than was previously thought.
The pro-death crowd on the left can no longer lie and insist that the "fetus" is nothing more than a mass of undifferentiated cells without being beaten over the head with the facts.
Want a really selfish perspective? Many of those slaughtered souls would now be entering their most productive years. The very tax base the Liberals insist must now be filled by Islam and Aztlan.
These two huge sources of Immigration, both legal and illegal consider themselves activists and agents of our destruction.
Sow the whirlwind indeed. Our elected officials are administrators. We, You and I are the only legal government of the United States.
What have we wrought?
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