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Viability and the abortion debate – what really matters?

Viability and the abortion debate – what really matters?

MPs in the House of Commons will debate tomorrow whether the cut-off for legal abortions in the UK should be reduced. Currently abortions are permitted up to the 24th week of a pregnancy, and some MPs have argued that this should be reduced to 20 weeks or below. Advocates and opponents of the change have pointed to scientific evidence about the viability of infants born extremely prematurely at 22, 23 and 24 weeks. They seem to believe that if we can answer the scientific question of whether such infants are viable, that will resolve the question about whether or not abortion is permissible at that stage.
That might be the case if there were a consensus on what viability means, and why it is important in questions about abortion time-limits. But, as this article will highlight, there is no such consensus, and it is not straightforward why viability should matter. So far in this public debate there has been little or no mention of the important questions – what is viability, and why is it important in abortion law?

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Humane Evolution

Professor John Harris wonders Who’s afraid
of a synthetic human? in the Times. He argues we should support
the Human Fertilisation and Embryology Bill because it will help us develop
effective therapies and enhance ourselves. Science is about bettering our lot,
after all. In particular, he says, synthetic biology may help us avoid going
extinct due to our vulnerabilities and instead enable us to choose (or become)
our successors as a species.

Many people become confused by the
possibility of a posthuman future. The traditional view of the future is a
stark one: either humanity extinct, or humans roughly as they are today. The
posthuman options would be that we either change ourselves so radically that
the resulting species is so  fundamentally different from humanity that we
would regard it as something entirely new, or that we create some kind of independent
beings that continue our culture even as traditional humanity retires from the
forefront (hopefully as proud parents of the new beings). The range of possible
options within these scenarios is endless, inviting equally endless and loud
speculation. That tends to distract from the key message of Harris’ essay: we
are leaving the realm of natural evolution and entering what he calls a realm
of enhancement evolution.

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The Ethics of ‘Human Admixed Embryos’: Concerns and Responses

By Loane Skene, Professor of Law, University of Melbourne and Julian Savulescu,  Uehiro Chair in Practical Ethics and Director Uehiro Centre for Practical Ethics, University of Oxford

The Human Fertilisation and Embryology Authority (HFEA) Bill, currently before the UK Parliament, will, if passed, permit HFEA to license the creation for research of embryos that combine human and animal genetic material (called, in the Bill, ‘human admixed embryos’). These embryos include cybrids which are formed by inserting the nucleus of a human body cell into an animal egg that has had its nucleus removed. Cybrids would produce embryonic stem cells that are 99.9% human. The Bill would also permit other types of embryos to be formed from human and animal genetic material that would be up to half animal. This post explains why scientists want to create human admixed embryos. It then outlines some ethical concerns about the creation of these embryos and responses that may be made to those concerns.

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A Pipeline to Truth? Fighting Absenteeism with Voice Analysis

The Daily Mail warns that bosses want to
use over-the-phone lie detectors to catch out workers pulling a sickie. The issue is the new generation of voice
analysis software that listens in when someone calls in sick, and prompts the person
talking the call on whether the person is suspiciously stressed. Yet another step towards
1984, a great way of
saving money and improving the truthfulness of people, or a double deceit?

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Looking for Biopolitical Trouble

Researchers at Cornell university have
developed a genetically modified human embryo expressing a green fluorescent
protein. This is a technology already demonstrated
in animals (and plants), including monkeys. But the news that it had been done to a
human embryo has stirred up reactions worrying about designer babies. Are we
already in a brave new world of designer babies? And how should we handle the biopolitical debate?

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Lesbians and male role models

In Britain, the Conservative Party has challenged the government to block lesbian couples from receiving IVF treatment unless they can provide a ‘male role model’ for their child. This is part of a proposed amendment to the human fertilisation and embryology bill which is currently before the parliament. Such a change would be a very bad idea.

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Kissing Cousins

Robin McKie, the science editor for The Observer on Sunday is predicting a major row later this month when scientists and health experts in the United Kingdom hold two key meetings to debate the issue of cousin marriage and its impact on health in Britain. (See http://www.guardian.co.uk/science/2008/may/11/genetics.medicalresearch?gusrc=rss&feed=networkfront). This is not the first time that the issue of cousin marriage has hit the headlines in the United Kingdom. In February this year The Guardian reported that government minister Phil Woolas spoke out about the health risks involved when cousins have children together. His comments were seconded by Ann Cryer, the Labour MP for Keighley, who has been a long term critic of cousin marriage and had earlier called for the tradition of first cousin marriages to be stopped. Marriage between first cousins raises the probability of a severe genetic illness from a base rate of about 2 percent to approximately 4 percent. Second cousin marriages raised the probability of a severe genetic illness to about 3 percent.

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Hunger is the best spice

Ghrelin is a hormone produced in the stomach that
appears to stimulate appetite. A recent paper in Cell Metabolism shows that
giving ghrelin to volunteers made their brains respond more strongly to food
images, reward systems in the brain became more active and they rated their
level of hunger higher. An immediate reaction in the blogosphere
was to consider the practical applications: Stomach hormone turns hungry people
into junkies (New Scientist), Fast Food Joints Add
Hormone to Food That Makes You Want to Eat More (Io9). Are we moving towards a future where
food will be literally addictive?

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The viability of fetuses and the abortion debate

A paper has been published online in the British medical journal today
suggesting that survival of extremely premature infants (less than 24
weeks gestation) has not improved in the last decade. This comes less
than a week before a debate in the House of Commons on the Human
Fertilisation and Embryo Authority bill. It has been claimed that this
paper “completely blows out of the water” the arguments of
anti-abortion MPs who hope next week to push for a reduction in the
cut-off for legal abortion (currently 24 weeks).

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