October 25, 2007
The vision of the new field of
regenerative medicine...
An Arm and a Leg?
Lizards Can Replace Missing Limbs - Someday Maybe We Will, Too
A
two-chamber heart, which begins beating after about four
hours, is produced using a Hewlett-Packard Inkjet Printer.
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“Medical scientists recently
scored a major breakthrough when they successfully implanted several
people with the world’s first laboratory-grown bladders. But what about
regrowing parts on the outside of the body, like fingers, arms or legs?
After all, some lizards and fish can do it. What have they got that we
don’t?
“A handful of researchers
around the country are working to find out. Last year, the Defense
Advanced Research Projects Agency, the Pentagon’s experimental science
wing, doled out multi-million dollar grants to launch two teams of
scientists in pursuit of a specific goal: figure out how salamanders
regenerate severed limbs, and make mice perform a similar trick.
Meanwhile, the Army will soon begin an attempt to regrow the fingers of
several war-maimed soldiers.
“The military has thousands
of reasons to be supporting such cutting-edge wound research, in the
form of the ever-mounting number of severely injured soldiers being
shipped home from Iraq and Afghanistan. From the American Revolution to
the Persian Gulf War, the ratio of wounded to killed soldiers held
steady at about 2.5 to 1. In recent years, however, advances in body
armor technology have saved countless soldiers’ lives—but even the best
Kevlar vests still leave limbs exposed. One result is that the
maimed-to-dead ratio has shot up to 9 to 1. That translates into an
awful lot of veterans missing pieces of their bodies.
“The salamander, the
creature highest up the evolutionary scale capable of regrowing its
appendages, gives a tantalizing example of the healing that might be
possible for such amputees. The little lizard can fully regenerate its
limbs, tail, jaws and parts of its eyes....”
PBS/Wired Science – October 23, 2007
Editor’s Note: A
fascinating three-minute video of Dr. Anthony Atala’s regenerative
medicine lab at Wake Forest University is available
online (the video is preceded by a short ad). Dr. Atala’s lab has produced seven lab-grown bladders that
have been successfully transplanted to humans. They are currently
working on projects that involve some twenty different human tissue
types. |
Please forward this e-mail to
anyone who might be interested in staying abreast of
the rapidly changing developments in biotechnology
and the related area of bioethics. For more
information on The Humanitas Project, contact Michael Poore,
Executive Director, at 931-239-8735
or . Or visit The Humanitas Project web site at
www.humanitas.org.
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“Numerous large studies have
shown that each birth will reduce your risk by ten percent and each year
of nursing by at least four percent.”
Want Protection From Breast Cancer? Have
Some Babies
by Dr. Miriam Grossman, M.D.
“October is
Breast Cancer Awareness Month, ladies. Time for pink ribbons,
fundraising, mammograms, and that familiar list of lifestyle changes you
can make to decrease your risk.
“I bet most
of you can recite it in your sleep: examine yourself monthly, watch your
weight, exercise, eat berries, vegetables and fiber. Don’t smoke or
drink excessive alcohol. Avoid red meat and fatty foods.
“Those are
the guidelines etched in our brains, women young and old, desperate to
dodge the dreaded bullet that will strike one in eight of us. But as you
stock up on blueberries and sauerkraut, please know one more thing. The
‘lifestyle’ choice that provides the best protection from this epidemic
has nothing to do with diet, cigarettes, or booze.
“You won’t
find it highlighted in women’s magazines or health websites, but it’s
the mommy track that provides the greatest protection against breast
cancer....”
Townhall.com – October 16, 2007
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Could there be a connection between the
pill and the potential for robo-sex?
Why People Will Soon Be
Marrying and Having Sex—with Robots
“People could be falling in
love and having sex with robots in a few decades and even marrying them,
according to a British artificial intelligence researcher.
“David Levy, originally from
London, has made the controversial forecasts about the future of
human-robot relationships in his Ph.D. thesis.
“In ‘Intimate Relationships
with Artificial Partners’, he argues that current trends in robotics and
artificial intelligence mean the leap to humans and robots forming
relationships is not far away.
Once robots become more like
humans, David Levy believes romance between the two, and even sex and
marriage, will be possible
“Mr Levy, also an
International Master in chess, believes robots will soon appear so like
humans in the way they look and act, in their personality and how they
express emotions, that many people will fall in love with them....”
Daily Mail –
October
12, 2007
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“‘Mommy makeovers’ imply
that mothers have been disfigured and can be fixed only with scalpels
and a wad of cash.”
Erasing ‘Stigma’ of Being a Mother
by
Kathleen Costello
“I call it my twin
skin.
“That’s the jiggly area
around my abdomen serving as a daily reminder of the hard-earned 54
pounds that enabled me to carry two six-pound babies at once. The weight
is long gone, but the twin skin remains.
“It’s common for women
to retain excess weight or gain a dress size or two after giving birth;
this is only natural, considering the toll pregnancy takes on every part
of a woman’s body! But it’s becoming more and more common to regard
these cosmetic changes as unnatural.
“A recent article in
The New York Times detailed the increase in ‘mommy makeovers.’ This
is the term many plastic surgeons use for procedures such as tummy
tucks, liposuction and breast lifts—with or without breast implants....
“But treating women who have borne children as
if their bodies are unnatural is a relatively recent marketing trend....”
Star-Gazette – October 22, 2007
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Screening out less than perfect
babies—the ideology and practice of eugenics has not disappeared...
Babies with Minor
Disabilities Aborted
“More than 100 babies with
minor disabilities, such as a cleft palate or club foot, were aborted in
one area of England in a three-year period, statistics reveal.
“The data records that 54
babies with club feet, 37 with cleft palates or lips, and 26 with extra
or webbed fingers or toes were aborted in south-west England between
2002 and 2005.
“The figures, provided by
the South West Congenital Anomaly Register, have heightened concerns
over the number of babies aborted due to minor defects which could be
corrected with simple surgery....”
Telegraph – October 24, 2007
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The ghost of eugenics still haunts Cold
Spring Harbor Labs...
Watson Loses Cold Spring
Harbor Post
by Yudhijit Bhattacharjee
Credit: Wikipedia
Ig-Nobelist?
James Watson
is in hot water over his remarks on race.
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“James Watson, the co-discoverer of the structure of DNA, has made many
controversial remarks over the years. But telling a British newspaper
that, in effect, blacks are intellectually inferior to whites seems to
have landed him in unprecedented trouble. Last evening, as public
criticism of those remarks swelled to a crescendo, the Board of Trustees
of Cold Spring Harbor Laboratory (CSHL) in Long Island, New York,
stripped Watson of his title as chancellor of the 117-year-old
institution.
“Watson has been at CSHL for nearly 4 decades, having become its
director in 1968. He became president of the lab in 1994 and chancellor
in 2004. Although not involved in the lab’s day-to-day administration,
Watson undoubtedly remains its most celebrated public face—so much so
that its fledgling graduate school bears his name.
“But now the institution is trying hard to distance itself from the
79-year-old Nobelist....”
ScienceNOW
Daily News – October 19, 2007
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Why no one should have been surprised at
James Watson’s latest outrageous statements...
The Eugenics Temptation
by
Michael Gerson
“James Watson, the Nobel
Prize-winning scientist who helped discover the structure of DNA in
1953, recently pronounced the entire population of Africa genetically
inferior when it comes to intelligence. And while he hopes that everyone
is equal, ‘people who have to deal with black employees find this not
true.’
“Watson’s colleagues at the
Federation of American Scientists found his comments ‘racist, vicious
and unsupported by science’—all true. But they could not have found
those views surprising. In 2003, Watson spoke in favor of genetic
selection to eliminate ugly women: ‘People say it would be terrible if
we made all girls pretty. I think it would be great.’ In 2000, he
suggested that people with darker skin have stronger libidos. In 1997,
Watson contended that parents should be allowed to abort fetuses they
found to be gay: ‘If you could find the gene which determines sexuality
and a woman decides she doesn’t want a homosexual child, well, let her.’
In the same interview, he said, ‘We already accept that most couples
don’t want a Down child. You would have to be crazy to say you wanted
one, because that child has no future....’”
The Washington Post – October 24, 2007 (free registration required)
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More progress using adult stem cells...
‘Bionic’ Nerve to Repair
Injured Limbs
by Roger Highfield
“Accident victims could one
day have their severed nerves ‘rewired’ with the help of stem cells
extracted by liposuction.
“University of Manchester
researchers have transformed fat tissue stem cells into nerve cells -
and now plan to develop an artificial nerve that will bring damaged
limbs and organs back to life. If all goes well, trials on the first
patients could begin in ‘three or four years,’ said Prof Giorgio
Terenghi.
“In a study published in the
journal Experimental Neurology, Dr Paul Kingham and his team at
the UK Centre for Tissue Regeneration in Manchester isolated the stem
cells from the fat tissue of adult animals and differentiated them into
nerve cells to be used for repair and regeneration of injured nerves.
“They are now about to start
a trial extracting stem cells from fat tissue of volunteer adult
patients by liposuction, which is relatively easier source than bone
marrow, in order to compare in the laboratory human and animal stem
cells.
“Following that, they will
develop an artificial nerve constructed from a biodegradable polymer to
transplant the differentiated stem cells. The biomaterial will be rolled
up into a tube-like structure and inserted between the two ends of the
cut nerve so that the regrowing nerve fibre can go through it from one
end to the other....”
Telegraph – October 18, 2007
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A settlement that avoids the critical
question: “Do pharmacists have a legal right not to perform services
that violate their beliefs?”
‘Morning-after’ Pill
Deal Reached
by Judy Peres
Pharmacists, state accept
rule change
“A Solomon-like settlement
reached in a lawsuit over access to ‘morning after’ pills would allow
pharmacists with moral objections to opt out without preventing women
from getting their prescriptions filled.
“Under the settlement, filed
Friday without fanfare in the U.S. District Court in Springfield,
Illinois pharmacies must fill prescriptions for Plan B and other
emergency contraceptive pills ‘without delay,’ as Gov. Rod Blagojevich
decreed in 2005. But individual pharmacists who believe dispensing the
pills would violate their religious beliefs don’t have to get involved.
Instead, the customer can receive the medication from the pharmacy owner
or another employee after an off-site pharmacist approves the
prescription by phone or fax.
“Plan B—a high dose of
regular birth-control pills—can prevent pregnancy if taken within 72
hours of unprotected sex. Most doctors consider it a contraceptive,
unlike RU-486, which induces an abortion.
“But ‘morning after’
contraception is unacceptable to those who believe life begins at the
moment of conception. Although Plan B works mainly by interfering with
ovulation or conception, it may also block implantation of a fertilized
egg in the womb and thus destroy an early embryo....”
Chicago Tribune – October 11, 2007
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When political correctness collides with
individual autonomy...
$mokers Pay the Price
Then, a
great newsman. Now, an insurance liability.
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“So much for the old
stereotype of a fedora-wearing reporter pounding out copy on deadline,
cigarette dangling from his mouth. Or the days of sportswriter Oscar
Madison chomping on his cheap stogie.
“Starting next year,
employees of my company will have to pay a $100 per month fee (that’s
$1,200 per year) if they smoke. Or if anyone in their family who gets
health insurance from the company smokes....
“Naturally, this makes me
wonder what other unhealthy sins will be surcharged in coming years.
“Will there be fees for
alcohol use? Eating fast food? Having high cholesterol? Not adhering to
proper weight/body mass guidelines...?”
South Florida Sun-Sentinel – October 10, 2007
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Issues of health, privacy, and personal
freedom...
Company to Workers: Shape
or Pay Up
by Mike Celizic
Indiana employer defends
plan to charge employees who smoke, overeat
“Packing a few extra pounds?
Still smoking like a chimney, despite all the evidence it can kill you?
“Well, if a new practice an
Indiana company is putting in place catches on, one day soon your
employer could demand you pay a price for your unhealthy lifestyle.
“Like a growing number of
companies, Clarian Health Partners has for a number of years had a
program that rewards employees for getting healthy. But now, Clarian is
telling its workers, it’s time to shape up or pay up....”
MSNBC/TODAYShow.com – August 10, 2007
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Biohistory: Can ethics and propriety
resist vulgar commercialism and scientific curiosity?
Secrets of the Grave
by
Lori Andrews
“Earlier this year, Italian
researchers announced the results of an unusual homicide investigation.
They had collected evidence in a unique place—a chapel—and the victims
(Francesco I de’ Medici, Grand Duke of Tuscany, and his second wife,
Bianca Cappello) had been dead for more than 400 years. Modern forensic
science showed they’d been poisoned by arsenic and had not died of
malaria, as reported at the time.
“Across the globe,
scientists are using the latest medical and forensic techniques to
investigate the behavior, diseases, causes of death and lineage of
historic figures. Beethoven’s hair has been analyzed to locate genes
related to musical ability and to see if lead poisoning caused his
eccentricities. Einstein’s brain was tested for a genetic predisposition
to aneurysm. And DNA analysis indicated that Thomas Jefferson fathered a
child with his slave Sally Hemings.
“‘Biohistory’—the
combination of biological testing and history—is one of the most
exciting new fields of scientific inquiry. But it also raises serious
ethical questions. I entered the field when officials of the Chicago
History Museum asked me to help create guidelines for genetic research.
The museum’s collection includes the blood-drenched cloak that Mary Todd
Lincoln apparently wore on the night of her husband’s assassination.
Museum officials wondered whether it was legal—or ethical—to do DNA
testing on the cloak’s blood....”
Parade – October 7, 2007
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Worth considering...
From The
Alternative Tradition in American Political Thought
by Patrick Deneen
“In keeping with [the]
biblical understanding, [Wendell] Berry believes an economy that
commends narrow and thoughtless forms of specialization does not
represent the proper form of work; it is, in fact, bad work....
“Not only does the
complexity of the modern economy make the likelihood of perceiving the
various connections between different kinds of worth exceedingly
difficult; before even arriving at that recognition, modern economic
theory in fact discourages such thoughtfulness by its tendency
instead to encourage short-term, individualistic, value-based (i.e.,
relativistic), and resource-exploitative ways of thinking.
Thoughtlessness is our default position and a tendency that is only
exacerbated by the resulting complexity of the extreme specialization
resulting from the available kinds of work.
“In contrast to the modern
tendency toward abstraction, Berry calls for thoughtfulness in
all its forms: thoughtfulness is, above all, our shared vocation and
constitutes what Berry calls ‘good work.’ Good work involves our
thoughtful reflection on the sources of life and the consequences of our
work. Such work does not entail our full comprehension of all the
constitutive efforts that go into the creation of a head of supermarket
cauliflower or any product of a complex economic system. Good work,
rather, entails the effort to see through a glass darkly toward the
whole of which we are all constitutive members. Such an effort, in the
first instance, acknowledges the existence of an Aristotelian and
biblical whole: it forces upon our consciousness a recognition
that we act not merely as partialities nor as autonomous or monadic
individuals but as members of a large living organism of civilization.
It forces to our consciousness recognition that, by acting in certain
ways, we assent to—or potentially withhold our assent from—the
destruction of that whole. We move beyond thinking that there is an
environmental crisis—since the ‘environment,’ Berry insists, is a
formulation that, unlike ‘nature,’ suggests an entity ‘out there’ and
separate from us—and instead experience that crisis as ‘a crisis of our
lives as individuals, as family members, as community members, and as
citizens.’ We begin to understand how our actions implicate us in the
whole, how we are inextricably linked in the creation of a common
culture—or the undermining of that culture—and in the forging of a
common good, or, more likely, the neglect of that good in the absence of
commonality.
“This form of thoughtfulness
constitutes the human vocation: in contrast to Adam Smith, who claimed
that the wealth of nations is built, above all, on increasing
subdivisions of labor that necessarily blind us to the connection of our
work to the broader good of society, Berry insists that good work
consists in the obligation to reflect thoughtfully upon the connections
we necessarily share, not only with one another, but with humans past,
present, and yet un-born. Our ‘human vocation’ calls on us to
participate in ‘responsible membership’ in the world. Berry chastises
participants of the modern liberal economy for ‘a profound failure of
imagination.’ He continues by insisting that ‘most people now are living
on the far side of a broken connection, and that this is potentially
catastrophic. Most people are now fed, clothed, and sheltered from
sources, in nature and in the work of other people, toward which they
feel no gratitude and exercise no responsibility.’ Properly understood,
vocation results in the widespread invigoration of imagination....
Through thoughtfulness and imagination, we can achieve what he calls
‘practical wholeness’....”
“The Alternative
Tradition in American Political Thought,” by Patrick Deneen, is one of
the essays included in Wendell Berry: Life and Work. This
outstanding collection of essays on the work of farmer, poet, essayist,
and fiction writer Wendell Berry was edited by Jason Peters and is
published by The University Press of Kentucky (2007). |
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