Showing posts with label surgery. Show all posts
Showing posts with label surgery. Show all posts

Monday, 24 November 2008

Sore throat? Get a new one...

Stem Cells used to rebuild throat!

Spanish woman gets her damaged trachea replaced by a stem-cell developed new one? Admittedly, I've twice used the word 'throat' now without actually being technically accurate, as it's the windpipe that feeds into the lungs that's been replaced. This isn't technically part of the throat, in my limited experience, although it does connect to it. Still, it's an impressive feat.
The article mentions several drawbacks though. The holy grail of stem-cells seems to be taking a clump of stem cells from the person who needs a transplant, put them in a dish of some sort, then grow whatever organ or tissue is needed by said patient, then stick it back in them. Sort of like some squidgy but biologically advanced herb garden, perhaps? That would understandably be great, preventing the need for this whole opt in-opt out organ donor malarkey.

I'm firmly in the opt-out camp myself, if organs from my mangled carcass can be used to save lives why the hell wouldn't I approve? A lot of people I've heard are just uncomfortable with the idea for no discernible reason. "It's not natural" apparently. Of course not, it's medicine. The natural thing to do would be just to let everyone die when they get ill, even if it's something easily curable, but we don't do that, because as thinking, rational beings we don't have to submit to natures whim's. Nature doesn't have whims either, it's a concept, or a process or whatever you like. Some people don't allow themselves medication because of their ultra religious beliefs which state that illness is the work of God, so by treating themselves they are going against his will. Unlike most scientists, I support this viewpoint. If I was God, and I'm at least a close second, the first thing I'd do is kill off all the people that stupid. So good luck to them. Or not.

So, back to the point, his trachea surgery is brilliant, but not quite perfect. For starters, someone still had to die for the surgery to go ahead. Without getting into the whole aborted -foetuses debate, this is a less than desirable pre-requisite for any surgery. Before they've begun, it's already got a 50% mortality rate. But there's potential for improvement, as they needed a donor trachea to provide a 'framework' for the stem cells to grow around. I guess it's beyond our means to make false ones at the moment, but still, here's hoping. We obviously can't control the way the stem cells develop in spatial configurations at the moment, but it's a start.

Also, I like the way the article states that the use of stem cells 'tricked the body into thinking the donor trachea was part of it'. If we're being honest, the stem cells are technically part of her body, so it's not really a trick. The trachea structure is donated, but does that make up the bulk of the donated tissue after every donor cells has been scrubbed off? But that's just being pedantic.

So, the scope for this is endless, but as always I worry about such procedures being abused, or used for less than noble purposes. If we can make safe, reliable organs to order, would people be happy with the ones they've got? My initial throat confusion was genuine, and lead me to wondering if the Spanish lady had the same voice as before. Obviously a trachea transplant wouldn't effect that, but what if it was the larynx and voice box?

Say some well-to-do person wanted to be a singer, so they get specially designed voice box made that allows them to sing well. But of course, a voice is nothing if you don't have the lungs to use it right. So they get a new pair of those too, bigger and better and fresher than the old ones, which are taken out and thrown in the bin, as no-one needs donor's anymore. Theoretical person can now sing very well. But being a famous singer is more than just vocal ability these days, it's about image. So person gets all ugly parts of her, or his, but lets say her, her body removed and replaced with specially designed better ones. Lets say for arguments sake that said person is horrifically ugly, so all bits of her body, bar skeleton and brain and some connective tissue, get replaced. Now we have basically the bulk of a person sat squelching in the corner. Rap it around a skeleton, bung in a rudimentary brain and it could be used to perform very simple tasks, like digging holes, pushing buttons or working for Virgin Railways. All unskilled labourers could be made redundant, replaced by the flung-off semi-carcasses of the wealthy.

So what happens to our now attractive singing person? She becomes a star for a brief period, but then people start doing the same and redesign themselves to be more talented and better looking and ever on to the point where she gets left behind in the race to be the next new superhuman celebrity star person thing. She gets depressed and sinks into drink (seriously damaging 8 Livers before the money runs out) and drugs (4 septums lost to coke and 2 arms lost to repeated use of infected needles, all replaced before money runs out). After a lengthy spell in 'rehab' where she's chained to a wall for 23 hours a day and gets hosed down regularly (proper comfy rehab is for people with money, which as we've established, has run out), she attempt to re-launch her career by appearing on 'I'm a celebrity, get me out of here', but in this day and age the horrific trials involve eating massive, swollen organs like anuses and bladders grown from her own cells, while being watched and laughed at by Ant & Dec (versions 4.8).

This combination of copious autocannibalism while being mocked by small Geordie clones finally destroys the last vestiges of her sanity. She tries to get a brain replacement, but that's the only organ that can't be replaced as it would mean she's not the same patient anymore, and medical malpractice insurance doesn't cover that. But she's adamant, so they put her under anaesthetic and just remove her brain and launch it into space. Not for research, just to get rid of her because she's getting on everyone's nerves.

So what I'm saying is, stem cells, not necessarily a good thing.

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Sunday, 24 August 2008

Another Round up of Science Stuff

General perspective on Science Stories and whatnot:

Screw you, Icarus!

Solar powered planes, seem like a good idea to me. The Icarus thing is clearly flipped over here, as the closer the plane gets to the sun the more power it gets, and the longer it can fly. Nice. It's a military thing, which explains why they could afford the best technology and support. The company 'QinetiQ' were involved, and I was at a seminar by a representative of them once. They spent around £500,000 on their logo. Money to burn, clearly. But as with most military applications, I'm sure this will be available to the general public before long. Not sure what we'd do with lightweight planes that can stay in the air for the best part of a week. Any suggestions?

Face on, Face off!

Face transplant surgery is improving, with more successful results. We're still a long way from the John Travolta/Nicholas Cage style direct swap seen in Face Off (although a bit of that film they just skimmed over was where Travolta's character had to be slimmed down to replace Cages, but then Cage took Over Travolta's role, so he had to be fattened up, so was there some form of reverse liposuction going on?), but face transplants seem to be more of a reality all the time. It's good news for those people who suffer serious injuries obviously, but I anticipate some problems in future.
  • Who's going to donate these faces? People are reluctant enough to donate organs, but whole faces? Would they be more or less pleased about a complete stranger walking around with their visage?
  • I.D. theft is a common problem, what if this technique become freely available on the private market, and they find a way to make new faces from scratch, what's to stop people stealing your identity quite literally? From 'don't throw out old bank details' to 'just don't ever show your face to anyone'. Add to this the possibility of the propagation of human cloning and we'll be advised not to leave any DNA lying around anywhere. Maybe we'll get a future where people wander around wearing full length impermeable body suits and black bike helmets. might be funny.

Stem Cells from Teeth

You can obtain stem-cells from teeth now, apparently. That's nice, might get away from the controversy of using embryos. But now the tooth fairy seems like a legitimate career move. Can we expect genuine hard cash for kids teeth now? I've actually heard the phrase 'I'd give my eye teeth for that', will that now be a legitimate option rather than just an obscure phrase. Although a lot of the support for stem-cell research is based on the argument that they could be used to replace lost or damaged tissue from their own stem cells which won't be rejected by your body. Statistically, the one body part people are most prone to losing is teeth. But it's OK because they can make new ones from . . . wait . . .

Bloody birds, coming over here...

Because of global warming, birds are moving northwards sooner than usual, but still not fast enough. This is obviously bad for birds, but probably good for global warming proponents. Birds have specific migration patterns and behaviours, so this is bad for them overall. This suggests that birds from France may even end up in Britain t some point as the global temperature bands fluctuate. But I wonder how the BNP will react to this, because you know if this happens the tabloids will completely undermine the seriousness of it with headlines like "THOUSANDS OF FRENCH BIRDS HEAD FOR BLIGHTY". A massive mix of confusing emotions, hatred of dirty foreigners coming into our country, lust and pride combined at the thought of all the naive French ladies leaving those useless Frog men and looking for some proper British blokes, confusion at all the stereotypes coming to mind, with hairy armpits but Mediterranean passions, all to lead to confused disappointment as it's actually regarding small feathered creatures looking for food sources. Silly old Bigots.

And finally...

I don't really follow the regular news, so was surprised to such outrage as Gary Glitter re-enters the country. Do people really hate Glam Rock that much these days?
Of course, I'm aware that he's a filthy child molester. But I do question his sanity. I think he should be back in the UK, why should other countries have to deal with our perverts? Is it fine of foreign kids get horrifically abused, as long as their not good old British children? But Glitter seems to be worse than a regular paedophile, he's a smug paedophile. The article says he plans to start his singing career again. Good for him. Bare in mind this is the country where all kids have knives (apparently) and paediatricians get their offices torched because it sounds vaguely similar, I would love to see the audience at his next tour.

Also, I put the word paedophile twice (well, three times now) in this entry and mentioned child molesting a few times, so I may be getting some very questionable hits in a bit.

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