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Biology & Medicine News and Discussions

Skin Cells Brain Cells Antibiotics WHO biotechnology genetic engineering bioprinting cancer evolution transhumanism

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#41
wjfox

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Daily aspirin 'blocks bowel cancer'

By James Gallagher Health reporter, BBC News

A daily dose of aspirin should be given to people at high risk of bowel cancer, say scientists.

Two pills a day for two years reduced the incidence of bowel cancer by 63% in a group of 861 at-risk patients, a study reported in The Lancet said.

http://www.bbc.co.uk...health-15475553


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#42
mic of orion

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brilliant stuff. a simple and cheap solution.
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They that can give up essential liberty to purchase a little temporary safety, deserve neither liberty nor safety.

#43
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Artificial blood could be used within next decade

Patients undergoing transplant operations could be given artificial blood produced from stem cells within the next decade, researchers claim.

http://www.telegraph...ext-decade.html

#44
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Israeli Medicine Breakthrough: Artificial Pancreas Trial Project
http://www.sacbee.co...eakthrough.html

For the first time in the world, under the leadership of Schneider Children’s specialists, The Artificial Pancreas Trial Project, aimed at providing a real solution for patients with diabetes, took place outside the hospital building


Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn!

#45
Craven

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the children enjoyed the interaction between themselves, swimming in the pool, sports, watching movies and other fun activities.

So this insulin pump and monitor is internal? Interesting.
"I walk alone and do no evil, having only a few wishes, just like an elephant in the forest."

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#46
Roh234

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Old but a visual is nice.

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What is true, just, and beautiful is not determined by popular vote. The masses everywhere are ignorant, short-sighted, motivated by envy, and easy to fool. Democratic politicians must appeal to these masses in order to be elected. Whoever is the best demagogue will win. Almost by necessity, then, democracy will lead to the perversion of truth, justice and beauty. -Hans Hermann Hoppe


#47
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'Rejuvenated' stem cells coaxed from centenarian

October 31, 2011 by Marlowe Hood

Scientists said Tuesday they had transformed age-worn cells in people over 90 -- including a centenarian -- into rejuvenated stemcells that were "indistinguishable" from those found in embryos.

The technical feat, reported in the peer-reviewed journal Genes & Development, opens a new path toward regenerative medicine, especially for the elderly, the researchers said.

"This is a new paradigm for cell rejuvenation," said Jean-Marc Lemaitre, a researcher at the Institute of Functional Genomics at the University of Montpellier and the main architect of the study.

"The age of cells is definitely not a barrier to reprogramming," he told AFP by phone.

http://medicalxpress...entenarian.html


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#48
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http://www.bbc.co.uk...health-15552964

Signs of ageing halted in the lab

By James Gallagher Health reporter, BBC News

The onset of wrinkles, muscle wasting and cataracts has been delayed and even eliminated in mice, say researchers in the US.

It was done by "flushing out" retired cells that had stopped dividing. They accumulate naturally with age.

The scientists believe their findings could eventually "really have an impact" in the care of the elderly.

Experts said the results were "fascinating", but should be taken with a bit of caution.

The study, published in Nature, focused on what are known as "senescent cells". They stop dividing into new cells and have an important role in preventing tumours from progressing.

These cells are cleared out by the immune system, but their numbers build up with time. The researchers estimated that around 10% of cells are senescent in very old people.

Cleanup

Scientists at the Mayo Clinic, in the US, devised a way to kill all senescent cells in genetically engineered mice.

The animals would age far more quickly than normal, and when they were given a drug, the senescent cells would die.

The researchers looked at three symptoms of old age: formation of cataracts in the eye; the wasting away of muscle tissue; and the loss of fat deposits under the skin, which keep it smooth.

Researchers said the onset of these symptoms was "dramatically delayed" when the animals were treated with the drug.

When it was given after the mice had been allowed to age, there was an improvement in muscle function.

One of the researchers, Dr James Kirkland, said: "I've never seen anything quite like it."

His colleague Dr Jan van Deursen told the BBC: "We were very surprised by the very profound effect. I really think this is very significant."

The treatment had no effect on lifespan, but that may be due to the type of genetically engineered mouse used.

Eternal youth?

The study raises the tantalising prospect of slowing the signs of ageing in humans. However, senescent cells cannot be just flushed out of human beings.

Dr Deursen said: "I'm very optimistic that this could really have an impact. Nobody wants to live longer if the quality of life is poor."

He argued that young people were already clearing out their senescent cells.

"If you can prime the immune system, boost it a little bit, to make sure senescent cells are removed, that might be all it needs.

"Or develop a drug that targets senescent cells because of the unique proteins the cells make."

Dr Jesus Gil, from the Medical Research Council's clinical science centre, said the findings needed to be "taken with a bit of caution. It is a preliminary study".

However, he said it was a fascinating study which "suggests if you get rid of senescent cells you can improve phenotypes [physical traits] associated with ageing and improve quality of life in aged humans".


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#49
mic of orion

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^^ great news will.
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They that can give up essential liberty to purchase a little temporary safety, deserve neither liberty nor safety.

#50
Prolite

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Doesn't this study backup the case Aubrey De Grey makes for getting rid of junk in the cells and out of the cells?
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#51
Unrequited Lust

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Doesn't this study backup the case Aubrey De Grey makes for getting rid of junk in the cells and out of the cells?

Yup. He's been saying this for 10 years. de Grey laid out the theory, that if you if you got rid of the "too many cells" (to put it in laymen's terms), the pathologies associated with it would go away. This experiment indicates that yes, this is the case.

Of course this was done on mice genetically engineered to age faster, to accumulate senescent cells faster. They wanted the results sooner rather than later. It will be interesting to see if this increases the average lifespan of regular mice. I say average because inevitably the other six causes of aging would prevent any mouse from living too long. But if you curb one of the causes, the average lifespan will increase, because that many mice who would've died from a pathology associated with cell senescence don't. Once we curb all seven causes of aging, thus precluding all aging-related pathologies (to a degree, it won't be perfect, hence longevity escape velocity), we can expect mice to break the upper limit, not just the average (like humans, the upper limit of aging has been roughly 120 years, despite the average lifespan increasing dramatically this past century).

#52
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Stem cells transformed into brain cells to treat Parkinson's disease

Animal study raises the prospect of using freshly grown dopamine-producing cells to treat people with Parkinson's

Nic Fleming and Ian Sample
guardian.co.uk, Sunday 6 November 2011 18.00 GMT

Brain cells that die off in Parkinson's disease have been grown from stem cells and grafted into monkeys' brains in a major step towards new treatments for the condition.

US researchers say they have overcome previous difficulties in coaxing human embryonic stem cells to become the neurons killed by the disease. Tests showed the cells survive and function normally in animals and reverse movement problems caused by Parkinson's in monkeys.

The breakthrough raises the prospect of transplanting freshly grown dopamine-producing cells into human patients to treat the disease.

http://www.guardian....kinsons-disease


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#53
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Researchers Create a Pituitary Gland from Scratch

Last spring, a research team at Japan's RIKEN Center for Developmental Biology created retina-like structures from cultured mouse embryonic stem cells. This week, the same group reports that it's achieved an even more complicated feat—synthesizing a stem-cell-derived pituitary gland.

http://www.technolog...ne/39108/?p1=A1


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#54
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Novel Drug Shrinks Monkeys' Waistlines

by Jennifer Couzin-Frankel on 9 November 2011, 2:00 PM

More than 10 years ago, a husband-and-wife team came up with a novel way to fight disease: Look for small bits of protein that home in on specific tissues and attach a drug to them. Now, the work has brought the researchers close to a new therapy for obesity, which they report works well in monkeys and is edging toward human testing.

Read more -- http://news.sciencem....y-monkeys.html


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#55
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^ Looks like this 2018 prediction might come true...

http://www.futuretim...ry/2018.htm#fat

:)

#56
Prolite

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^ Looks like this 2018 prediction might come true...

http://www.futuretim...ry/2018.htm#fat

:)


I don't know about that. This treatment seems to have a bad effect on the kidneys, and the treatment only lasts for 4 weeks. I think scientists have a lot of research left so the treatment doesn't have any side effect on organs. And this drug doesn't prevent obesity either. It merely treats obesity after it has already occurred.
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#57
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New hope for head injury patients

A method of communicating with brain damaged patients who appear to be in a vegetative state has been discovered by scientists in the UK and Belgium.

http://www.bbc.co.uk...health-15661977

#58
Prolite

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Why does it seem like all of a sudden cancer breakthroughs are being made. Very weird. If scientists continue on this course, it seems like almost all diseases and cancers could be either prevented, cured, or quelled within 20 years. Probably not true but sure as heck seems like it. And the anti-aging research seems to be dripping in a little quicker.
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#59
Raklian

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Why does it seem like all of a sudden cancer breakthroughs are being made. Very weird. If scientists continue on this course, it seems like almost all diseases and cancers could be either prevented, cured, or quelled within 20 years. Probably not true but sure as heck seems like it. And the anti-aging research seems to be dripping in a little quicker.


Maybe it is the "law of accelerating returns" or "expontantial growth" Kurzweil was touting?
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#60
Prolite

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Why does it seem like all of a sudden cancer breakthroughs are being made. Very weird. If scientists continue on this course, it seems like almost all diseases and cancers could be either prevented, cured, or quelled within 20 years. Probably not true but sure as heck seems like it. And the anti-aging research seems to be dripping in a little quicker.


Maybe it is the "law of accelerating returns" or "expontantial growth" Kurzweil was touting?


I advise you don't follow Kurzweil's "touting" as if it was fact. Use your own brain, with all due respect.
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Also tagged with one or more of these keywords: Skin Cells, Brain Cells, Antibiotics, WHO, biotechnology, genetic engineering, bioprinting, cancer, evolution, transhumanism

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