Originally posted by: Fight Magnet
Date: September 18, 2012 at 06:18 PM
Source: https://forum.mmajunkie.com/threads/genetically-enhanced-babies.6233/
Unnatural selection: is prenatal testing a triumph for reproductive freedom – or brazen discrimination?
http://blogs.scientificamerican.com/unofficial-prognosis/2012/09/17/unnatural-selection-is-prenatal-testing-a-triumph-for-reproductive-freedom-or-brazen-discrimination/?WT.mc_id=SA_Facebook
On Sunday, Slate republished an article from New Scientist, written by Harriet A. Washington, that reflected on the “anxieties and dilemmas” that may stem from peeking into a fetus’s genome before birth. “Do You Really Want to Know Your Baby’s Genetics?” the title asks.
The piece is a response to a new technological advance in looking at a baby’s genetic makeup while it’s still in utero. Over the summer, two teams of researchers at the University of Washington in Seattle and Stanford University independently reported that they could now map a fetus’s entire genome during the first trimester by drawing Mom’s blood that contains bits of fetal DNA.
Prenatal genetic testing is not new. Chorionic villus sampling can detect chromosomal abnormalities such as Down syndrome ten to twelve weeks into pregnancy. Amniocentesis between fifteen and twenty weeks can find chromosomal abnormalities as well as several other genetic disorders, such as sickle cell disease, cystic fibrosis, and Tay-Sachs disease. Now, we face the possibility of whole genome scanning. Advances in technology were expected. As a result, discussions on the ethical implications of knowing a baby’s genetic makeup have been in full swing for a while.
In light of the new advances, I am re-posting an article I wrote a little over a year ago that delves into these ethical issues and was recommended by the Hastings Center. The technology may have moved forward, but the dilemmas remain the same, and they are as pertinent as ever. Namely, is prenatal screening a triumph for reproductive freedom – or will it lead us down a path of prejudice? As more information becomes available, how should we use prenatal genetic testing beneficially and responsibly?
(From the archives: the following piece originally appeared with slight modifications in Science Progress on July 18, 2011)
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In July 2011, 37 parents and supporters in New Zealand brought a complaint to the International Criminal Court accusing their state, and in particular the Minister of Health, of crimes against humanity. The Minister encourages prenatal screening and selective abortion of unborn babies diagnosed with Down syndrome, they wrote. “This is government funded social engineering and is also eugenics where only the perfect may be born.”
The case comes on the heels of a scientific discovery in December 2010, when two research teams independently reported that they could reconstruct fetal DNA taken from the mother’s blood. Analyzing this DNA would allow testing for a range of genetic conditions, including one of the most common chromosomal disorders, Down syndrome, earlier in pregnancy than ever before. Additionally, the simple blood draw would evade the risk of miscarriage that comes with current methods of prenatal screening, including amniocentesis (which involves sticking a needle through the abdomen and into the uterus) and chorionic villus sampling (done either by a needle through the abdomen or by prodding a tube through the vagina and cervix). An early, noninvasive test could in theory become an option for all pregnant women, not just those who carry a high risk of genetic disease.
Due to the earlier testing methods, Down syndrome births decreased 11 percent between 1989 and 2006. Currently, over 80 percent of fetuses diagnosed with Down syndrome are aborted in the United States. These figures hit 91 to 93 percent in the United Kingdom and other parts of Europe. Learning a prenatal diagnosis at nine weeks, in contrast to the 10 to 12 weeks typical for chorionic villus sampling and 15 to 20 weeks for amniocentesis, could alleviate some of the physical and emotional burdens that accompany later abortions, causing these numbers to spike even higher.
A scroll through the online comments to the news stories reveals that the reaction in New Zealand was not unique. “Where do we draw the line?” one user asks. “Screen for autism? Screen for ADD? Abort those kids? How about just screen for anyone with an IQ <100? This notion of ‘designer babies’ is just appalling!” Another laments, “Welcome to the world of ‘Gattaca,’ designer babies and a new ‘master race.’” And yet another: “Anybody who aborts a child with a disability will never know what they are missing, and it is truly your loss, and the world’s loss. I weep for all those unborn babies who never will be able to share their gifts … an unspeakable tragedy.”
Hold that thought.
The Internet critics are right to make the point, as Marcy Darnovsky at Science Progress and many others have, that new developments in the laboratory necessitate profound moral reflection outside of it. But how much of these fears are justified? Is this really eugenics by abortion?
Like it or not, we are afforded a lot of liberty when it comes to reproductive decision-making. Parents may choose how to use their reproductive capacities, what kinds of children they want, and how to raise them according to their own standards of what they believe is best, free from government interference “unless the state could show compelling justification for the restriction,” writes bioethicist John Robertson. This freedom has a legal backing too, with the Supreme Court long protecting the rights of people to make their own decisions with regard to marriage, procreation, motherhood, family, and child rearing. If it’s “designer babies” we are worried about, we are already there. Women can now seek egg donors with criteria as specific as ethnicity and minimum height and SAT scores. Preimplantation genetic diagnosis involves screening for genetic blemishes in embryos created through in vitro fertilization and cherry-picking only the healthy ones to implant.
There is also the freedom not to have kids at all. Regardless of one’s personal opinion on the matter, abortion is legally permitted in this country. Moreover, a woman does not have to disclose her reasons for that choice. If we say yes to abortion for no reason at all, it seems illogical to forbid it for a well-defined reason, such as genetic disease.
So what’s the problem? Answering that means figuring out whether prenatal genetic testing is categorically different—or different only in degree—from what is accepted and established.
Bioethicists have spilt a lot of ink doing just that, and many of their arguments have converged on a similar sentiment. We live in a society in which we nobly aim to promote acceptance of diverse groups. Genetic testing undermines that aim, the argument goes, for it sends an intrinsically offensive message that the lives of people with disabilities are less valuable. As bioethicist Adrienne Asch opined, “As with discrimination more generally, with prenatal diagnosis, a single trait stands in for the whole…. The test sends the message that there’s no need to find out about the rest.” More recently, the New Zealand claimants agree: “The screening programme… devalues children with Down syndrome and is offensive to parents.” Allowing or even encouraging selective abortion based on a single “undesirable” trait is discriminatory, and it should be condemned when directed toward a fetus just as it is when targeting those who have already been born.
Genetic counselors have apparently done little to ease this concern. Counselors and the disability community have a “tenuous relationship,” claims one recent article, in which counselors often hold more negative perspectives on disability than those who are directly affected. These attitudes influence how counselors communicate with patients about prenatal decisions, causing disabled people to feel judged in clinical settings. Adding to the shaky trust is the fact that the National Society of Genetic Counselors, which represents the profession in the United States, has publicly connected itself more with abortion service providers than with disease advocacy organizations.
Doctors are not sporting spotless images either. One analysis concluded that written materials about prenatal screening are often insufficient, and the limitations of testing are not adequately explained. The latter shortcoming is especially problematic in genetics, where testing is probabilistic by nature and thus demands a nuanced explanation to be accurate. Unfortunately, a whopping 45 percent of obstetric fellows say their training on how to deliver a prenatal diagnosis is “barely adequate” or “nonexistent.”
Still, the critique of discrimination relies on an assumption: an attitude toward a diagnosis in a fetus, particularly one’s own fetus, represents an attitude toward an existing person. And social science research shows this may not be true. One discerning study surveyed 197 pregnant women about their beliefs on testing for Down syndrome in their own fetuses along with their attitudes toward the Down syndrome community at large. While unfavorable attitudes toward people with Down syndrome did indeed correlate with the women’s intentions to screen, favorable attitudes toward people with Down syndrome could not predict whether screening would be used. That is, many women who expressed positive attitudes toward the Down syndrome community still wanted to test their own prospective children.
The authors explain this result by
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