Sunday, 24 February 2013

So Hungry I Could Eat A Horse...


Some of the names
involved in the scandal
There has been quite the scandal in recent news with horsemeat being found in misleadingly named "beef" burgers. I won't Shergar coat it - people have been furious about it. So why the long faces? Well, many do not view this as a suitable mane course for a stable diet. Personally, I don't think they will be on sale furlong, as stores have been saddled with fridges full of burgers, although some say sales remain stable. Alright, that's enough horsing around. Unfortunately I can't promise there will be no more bad puns throughout this post... there's just neigh way I can resist.

So what actually happened? Well, in January, Irish food inspectors announced that they had found horsemeat in 'beef' burgers made by firms whose products were sold by UK supermarkets including Tesco, Aldi and Lidl. Since then companies such as Findus and NestlĂ© have recalled products after horse DNA was identified in beef labelled products.

One of the horsemeat products
So why commit such fraud? Well, because horsemeat is cheaper than other meats in some countries, so there was an opportunity for financial gain by selling horsemeat as 'beef'. The weird thing is, on the Continent the price of horsemeat is much higher, being popular in France and Italy, as well as being widely consumed in China. Yet in the UK there is generally a more negative attitude towards eating horsemeat. Do us Brits just not like then idea of munching on black beauty?

But the issue with eating horsemeat is more complex than a reluctance to nibble on Seabiscuit. Phenylbutazone, known as bute, is used as a painkiller for horses and has been found in meat in France. Bute is used by humans to treat ankylosing spondylitis, a severe form of arthritis which affects the back. The possible but rare side effect of bute is aplastic anaemia, a bone marrow disorder which affects one in 30,000 users. 

Phenylbutazone or 'bute'
However, health experts have emphasized that this whole horsemeat scandal is a matter of fraud more than safety, as the levels of bute detected are said to pose very little risk to human health. In fact, in order to get a single therapeutic dose of bute you'd need to eat over five hundred 250g horse burgers, in a day. That's a hell of a BBQ. There is also the small chance that other drugs given to horses may end up in our food chain, particularly coming from unregulated sources.

What's happening now? Well, since then the Food Standards Agency has carried out widespread tests on random samples of 'beef' products. The first set of results did not show any new products containing more than 1% horsemeat, and the rest of the results are on the way. The most recent update is that UK food retailers will update ministers on DNA testing every 3 months - this is obviously going to be thoroughly regulated from now on.

But on a positive note some good could come from all of this - more people are now buying their meats from independent shops, and you've got to stand up for the little guys in this economy. Furthermore, there has been a general decrease in the sales of processed meats, which have an association with an increased risk of cancer, which could mean a healthier future for some people. It's a small impact but hey, 'every little helps'.

Hungry enough to eat a horse?
My personal view - this is an issue of fraud, and it is quite frankly scary how people can be misled on such a wide scale. But I would not be concerned of any health affects, because a) the quantities that one must eat for any risk of effect are huge, b) this should be significantly more regulated in the future, and c) I'm vegetarian. Well, would you look at that, no more dodgy horse puns. Guess I managed to rein it in after all.

References
http://m.bbc.co.uk/news/health-21482127
http://www.bbc.co.uk/news/uk-21495300
http://www.bbc.co.uk/news/world-europe-21457188


Thursday, 7 February 2013

King in the Car Park

Richard III
Its been an exciting time for historians, particularly those in Leicester. The remains of Richard III (more recently known as the King in the car park) were missing for 500 years, before being dug up from under the car park of Leicester council in September 2012. Since then a whole bunch of cool analysis has been carried out, which has led to their confirmation that that's our Richard...the third.

One of the first things noticed when the bones were found was a very curved spine. This is scoiliosis, which fits the 'hunched' historical description. Scoiliosis is a condition that gives the spine an S or C shape bending to the left of right (not actually a hunched forward spine which is a different condition called kyphosis). With up to 70% of adults over 65 having some degree of scoilisis, and a significant number younger people being affected, there are most likely a huge number of people who can sympathise with Richard. And for 8 out of 10 cases of scoliosis the cause is unknown.

The next thing they noticed was that our Richard had wounds to the skull. His bones were put in a CT scan to study the trauma in detail. The images produced by a CT scan (called tomograms) are more detailed than standard X-rays. For living subjects, a CT scan can produce images of structures inside the body including the internal organs, blood vessels, bones and tumours. From this bone CT scan and a very clever trauma team, the wounds were matched to historical accounts and weapons of the time to describe his, quite frankly horrific death.

Carbon dating of the skeleton was carried out to give the time frame of 1450-1540 A.D. (with 95% probability), which matched to the time of Richards life. Carbon dating measures the amount of radioactive carbon-14 in an object, which decays over time. From knowing how much carbon-14 was originally in an object (or person) and measuring the amount of carbon-14 present at current day, the amount that has been lost can be used to produce a relatively reliable time frame.
Image: A facial reconstruction of King Richard III.
Facial reconstruction was also carried out, which personally made me think how bloody amazing science and technology are. This technology is otherwise used for criminal investigations. From a skull, a whole facial structure could be made, and some very talented individuals were then able to make a life size model of his head. Clever eh.

Genetics of a living decendent, a nephew in the 17th generation who happened to be a cabinet maker from north London, were matched to DNA of the remains to give the final confirmation. Saying that, New Scientist pointed out the importance of scrutiny and the DNA analysis will come under peer review now it has been released to the press.

If you haven't watched the documentary, then do. Go to 4od now and watch a really good programme with a slightly nutty Richard III enthusiast who keeps crying. The programme questions the character of the King, whether he killed his nephews to reach the throne or not, whether he was the evil hunched figure described by Shakespeare, or a nice bloke unfairly portrayed by the Tudors. Whatever his character, this King, unlike any other, has been the King of a country... and a car park.

References

http://www.newscientist.com/mobile/article/mg21729033.500-open-richard-iii-dna-evidence-for-peer-review.html

http://www.nhs.uk/Conditions/Scoliosis/Pages/Causes.aspx

http://www.bbc.co.uk/history/ancient/archaeology/carbon_dating_01.shtml

http://www.nhs.uk/conditions/ct-scan/pages/introduction.aspx

*Note from the blogger: I just wanted to say thanks for reading, it has been a while since I posted anything as I'm now a busy lady balancing studying and working, but if you like my blog then please let me know by liking my facebook page www.facebook.com/HumanInterests and if you have any ideas for posts please get in touch! Cheers :)