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Biomedical Science

When the poison is the antidote: risky disaster research

A recent report by Lipsitch and Galvani warns that some virus experiments risk unleashing global pandemic. In particular, there are the controversial “gain of function” experiments seeking to test how likely bird flu is to go from a form that cannot be transmitted between humans to a form that can – by trying to create such a form. But one can also consider geoengineering experiments: while current experiments are very small-scale and might at most have local effects, any serious attempt to test climate engineering will have to influence the climate measurably, worldwide. When is it acceptable to do research that threatens to cause the disaster it seeks to limit?

Read More »When the poison is the antidote: risky disaster research

Can we solve the world’s problems by offering a large enough prize?

On the 22nd of October 1707, more than 1400 British sailors died when a British naval fleet sank in stormy weather off the Isles of Scilly. The disaster was later attributed to failings in navigation and sailors’ difficulty in determining their location at sea. This was a perennial problem at the time, and had persisted despite intense scientific research. Seven years later, the UK government passed the Longitude Act, offering 20,000 pounds (more than 2 million pounds in today’s money) to anyone who could develop a method for reliably determining longitude at sea. The longitude prize was eventually won by John Harrison, a self-educated Lincolnshire clockmaker.

Yesterday, 300 years after the original Longitude act, the UK Technology Strategy Board launched a £10 million pound prize competition, a new ‘Longitude prize’. The money will be awarded to a scientist or group of scientists who come up with a solution to one of a set of major global challenges – inadequate food/clean water supply for everyone, antibiotic resistance, spinal cord injury, dementia, the large carbon impact of air-flight.

The new Longitude prize is the latest in a series of innovation inducement competitions over time. These competitions have offered monetary rewards for solving problems as diverse as the development of butter substitutes, the first trans-Atlantic air flight, reusable aircraft for space flight, or an alternative fertilizer to bird poo. One novel feature of the 2014 Longitude prize is that it is seeking public input into the specific challenge to be targeted. Public voting will decide which of the six global challenges above are to be the focus of the prize.

But are innovation prizes an effective or appropriate way to solve major global scientific challenges?Read More »Can we solve the world’s problems by offering a large enough prize?

“Whoa though, does it ever burn” – Why the consumer market for brain stimulation devices will be a good thing, as long as it is regulated

In many places around the world, there are people connecting electrodes to their heads to electrically stimulate their brains. Their intentions are often to boost various aspect of mental performance for skill development, gaming or just to see what happens. With the emergence of a more accessible market for glossy, well-branded brain stimulation devices it is likely that more and more people will consider trying them out.

Transcranial direct current stimulation (tDCS) is a brain stimulation technique which involves passing a small electrical current between two or more electrodes positioned on the left and right side of the scalp. The current excites the neurons, increasing their spontaneous activity. Although the first whole-unit devices are being marketed primarily for gamers, there is a well-established DIY tDCS community, members of which have been using the principles of tDCS to experiment with home-built devices which they use for purposes ranging from self-treatment of depression to improvement of memory, alertness, motor skills and reaction times.

Until now, non-clinical tDCS has been the preserve of those willing to invest time and nerve into researching which components to buy, how to attach wires to batteries and electrodes to wires, and how best to avoid burnt scalps, headaches, visual disturbances and even passing out. The tDCS Reddit forum currently has 3,763 subscribed readers who swap stories about best techniques, bad experiences and apparent successes. Many seem to be relying on other posters to answer technical questions and to seek reassurance about which side effects are ‘normal’. Worryingly, the answers they receive are often conflicting.Read More »“Whoa though, does it ever burn” – Why the consumer market for brain stimulation devices will be a good thing, as long as it is regulated

Another Surprising Side-Effect of Paracetamol: Causing ADHD?

Photo: Colourbox

Taking the popular over-the-counter pain and fever medication paracetamol during pregnancy might affect the unborn child more than we assumed – and hoped for. Recently, research began to link pre-natal exposure of paracetamol (also known as acetominophen) to asthma and poor motor and communication skills in small children. Now, a new study published yesterday suggests that taking paracetamol during pregnancy comes with an increased risk for the baby of developing attention deficit hyperactivity disorder (ADHD) later.

The authors of this study investigated 64,322 Danish children (born 1996-2002) and their mothers. The women were asked whether they have taken paracetamol in computer-assisted telephone interviews three times during their pregnancy and shortly after. To asses ADHD in children, the researchers used different ways: they asked the mothers of 7-year-olds about their child’s behaviour using a standardised ADHD questionnaire. Moreover, they used Danish medical registries to gain information about diagnoses of hyperkinetic disorder, which resembles a severe form of ADHD, and descriptions of ADHD medication to the children.

Read More »Another Surprising Side-Effect of Paracetamol: Causing ADHD?

Medical ethics are ridiculous

In a blistering letter in the current issue of the British Medical Journal, Miran Epstein identifies some of the factors we should consider in assessing the claims of so-called ‘evidence-based medicine’.[1] Nobody rationally disagrees with the suggestion that medicine should have an evidence base, and everybody should agree that in order for medicine to be based on reliable evidence, it should be free of the following ‘polluters’:

  •  financial conflicts of interest
  •  inadequately rigorous selection criteria, outcome measures and criteria of statistical significance
  • the practice of testing products against placebo or no treatment (rather than current treatment), and then shouting ‘Eureka!’
  • recruiting subjects using financial incentives that introduce outcome bias
  • marketing campaigns masquerading as research

Marathon mice, enhancement and the will to work out

In his article in the Pacific Standard last week, author Bruce Grierson discusses the emerging scientific evidence that the ‘will to work out’ might be genetically determined. Grierson describes a ‘marathon mouse’, the descendant of a long line of mice bred for their love of exercise, and a 94-year-old woman called Olga, who is an athletic anomaly. Both the mouse and Olga love to work out. The mouse goes straight to his wheel when he wakes up, running kilometers at a time and Olga – a track and field amateur – still competes in 11 different events. Grierson suggests that cracking the code for intrinsic motivation to exercise would lead to the possibility of synthesizing its biochemical signature: ‘Why not a pill that would make us want to work out?’, he asks. Such a possibility adds an interesting dimension to the debate about enhancement in sport, and to enhancement debates more generally.Read More »Marathon mice, enhancement and the will to work out

Doctors: turn off your computer and listen to your gut

‘Between the NHS and social care, there must be total commitment to ensuring that interaction is paperless, and that, with a patient’s consent, their full medical history can follow them around the system seamlessly.‘ So said Jeremy Hunt,the Health Secretary, on 16 January 2013. And NHS England say that: ‘Our vision is for a fully integrated digital patient record across all care settings by 2018’.

It sounds like a good idea. It’s not. Or not in its present form. Many of the concerns that have been expressed relate to privacy/confidentiality. Those concerns are real. But even if they can be satisfactorily addressed, electronic health records have the potential to do great harm. They divert attention from the patient to the screen, and they cause clinical skills to atrophy.

David Loxterkamp recently observed that the computer in the consulting room is a Frankenstein-like creature: ‘….we have created a place in our exam rooms for a computer that needs our care and feeding. It now directs the flow and purpose of an encounter that once unfolded organically according to the particular needs of the patient.’ The electronic servant becomes the master. Read More »Doctors: turn off your computer and listen to your gut

Podcast: Genetic Parenthood, Assisted Reproduction, and the Values of Parental Love

On the evening of Thursday 28 December, Prof. Justin Oakley, Deputy Director of the Centre for Human Bioethics at Monash University, gave a fascinating and suggestive lecture on whether there is reason for the state to broaden access to IVF treatment for childless people as well as facilitating adoption.Read More »Podcast: Genetic Parenthood, Assisted Reproduction, and the Values of Parental Love

Is it morally permissible for parents to encourage their children to play high-impact sports?

Concussions are prevalent in high-impact and much-beloved sports such as American and Australian football, rugby, and hockey. Concussions are harmful – recent studies link repeated concussions to degraded cognitive performance along a number of measures (Randolph et al. 2013), as well as an increased risk of neurodegenerative conditions such as chronic traumatic encephalopathy (McKee et al. 2013). Concussions are much in the news. Recent events such as the suicide of Dave Duerson and the suicide of Junior Seau have been linked to the long-term effects of repeated concussions, and the governing bodies of many high-impact sports have, of late, been scrambling to address the problems posed by growing awareness of the danger of concussions.

A number of ethical questions arise in connection with this growing awareness. (What should the governing bodies of sports leagues do to protect players? What do teams owe players in such sports? Is the decision to play such a sport, or to continue playing in spite of suffering a concussion, really autonomous? Should fans speak up about player protection, and if not, are they complicit in the harm done to players? And so on.) Here I want to consider one question that has received little attention. It involves the role of parents in fostering participation in high-impact sports.Read More »Is it morally permissible for parents to encourage their children to play high-impact sports?