Showing posts with label Medicine. Show all posts
Showing posts with label Medicine. Show all posts

Monday, March 14, 2011

Some Jobs More than Others

Let's face facts: Robots are the future. For real this time. Beyond automated assembly lines, we are going to see robots in more and more human-facing roles (and people are looking especially closely at Japan on this one, since they have an older population that vastly outnumbers the working-age population, and someonething is going to have to care for them.)

So, the Georgia Institute of Technology did a study on how effective these robots are going to be in interacting with people. Sounds reasonable. After all, there's no point in blowing an entire R&D budget on Robot Guidance Counselors (that's robots doing the job of guidance counselors, not guidance counselors for robots, by the way) when it turns out that people would rather get life advice from a rolled-up newspaper.

It turns out that robots may have a future in the nursing industry. Grief counselors, not so much. Interestingly enough, subjects responded differently to the exact same robot contact depending on what they thought was happening. People who thought that the robot was cleaning their arm responded much more favorably than people who thought that the robot was trying to "comfort" them.

What does this mean for the sex robots of the future? too early to tell, but there may still be hope for them in certain specialized fetish niches.

(And I demand some recognition for the fact that I made it all the way through this post without changing their "Touched by a Robot" press release title into a "Touched by an Angel" joke!)

Digg this Stumble Upon Toolbar

Sunday, November 7, 2010

Can't BEET it!

Ha ha ha. Sorry for the pun, I just couldn't help myself. I'll try not to go too nuts with this story (because that would be BEET-ing a dead horse!)

Apparently, beet juice is kind of a big deal. They've been looking into it over at Wake Forest University, and it has some pretty beneficial health effects. It's all about the nitrates, which I thought were supposed to be harmful compounds found in processed meat like hot dogs, but then I'm not a university biologist so my knowledge is crap.

The body turns nitrates into nitrites, and nitrites improve blood flow. The Wake Forest researchers divided up their test subjects into a group that ate a lot of nitrates, provided by beet juice, and a group that didn't. Then they switched diets halfway through for the participants to make sure that it really was the food that was having the effect. And in all cases, the research supported the theory that increased nitrate consumption leads to improved blood flow.

From there, they are saying that this improves brain activity, and think it's going to be helpful for older adults.

What I want to know is how nasty it was to have to drink 16 ounces of straight beet juice. That's a full pint glass, and when dealing with glasses of that size, I'd rather have the beer. Does beer help increase the blood flow to the brain? If they're interested in studying that, I want to volunteer to be one of the test subjects!

Digg this Stumble Upon Toolbar

Saturday, October 2, 2010

But what if you're allergic to mice?

Remember a few years back when there was a news story about a lethal "peanut butter kiss"? A girl had died, and the rumor that was circulating was that her boyfriend had just eaten a peanut butter sandwich and kissed her, and she was so fatally allergic to peanuts that she had a reaction and died. It turned out to be a load of crap--the coroner released an official report after her autopsy stating that she did not have an allergic reaction to kissing her boyfriend--but the urban legend was just too juicy for people to let go. I still hear coworkers talking about it.

I haven't seen anyone die from a food allergy, but I have seen some pretty bad reactions. Allergies to things like wheat, peanuts, and milk can be serious business. I can only imagine how heartbreaking it must be for allergy sufferers since those items end up in so many of the food products available in stores and items on restaurant menus these days.

Given all that, I think it's kind of a big deal that Johns Hopkins prevented mice from having fatal allergic reactions. I think that's good news. Granted, it usually takes a long time for something to get from the "tested in mice" stage to the "making life better for everyone" stage, but I'm keeping my fingers crossed.

Digg this Stumble Upon Toolbar

Tuesday, July 27, 2010

Firewater? Really?

It's always important to examine prejudices to see if there's any truth to them, or if it's just mean-spirited people spreading rumors. Like the idea of Indians and their firewater. Let's face it, that assertion in this day and age is just naked bigotry.

So the U.S. Department of Health & Human Services keeps records on this sort of thing. Actually, their subdivision, the Substance Abuse and Mental Health Services Administration (SAMHSA) tracks it, and then releases their data. According to a survey the released in June, American Indians and Alaska Natives had a lower rate of alcohol usage than the national average. Mind you, that's past month alcohol usage.

It's a mixed result. Although the past month usage is lower than the national average, the rate of binge alcohol and illicit drug use is higher than the national average, with one in eight American Indian or Alaska Native adults seeking treatment at a speciality facility for alcohol or drug use. Make of that what you will.

Digg this Stumble Upon Toolbar

Tuesday, June 29, 2010

Are High Heels Really Worth It?

I think we need to draw a line between cosmetic surgery and ridiculous nonsense that puts people in danger without any real benefits. It looks like The American Orthopaedic Food and Ankle Society agrees with me. They think that you should avoid cosmetic foot surgery.

I think it's worth noting, that of the three surgeries given as examples of unnecessary "foot facelifts," two of them had to do with wearing high heels (making feet narrower and changing the shape of the little toe, if you were curious). Is a fashion accessory really something worth risking permanent physical damage over?

Note that I said fashion accessory. This is about changing the look of your feet to fit into shoes. Getting a nip, tuck, or liposuction for a bathing suit is about an article of clothing, and the subject of a completely separate post. Still, when you are risking (and here we'll quote Dr. Michael Pinzur of Loyola University Health System) "infections, pain, scarring and nerve damage," you might want to ask yourself if the surgery is really necessary.

Digg this Stumble Upon Toolbar

Wednesday, April 21, 2010

Oh, Missouri

Why are your kids so filthy? And I ask because I care, not because I want to pass judgment on you or anything. Seriously, your school kids need serious help.

I'm talking about treatment-resistant ringworm. It's a fungus, not a worm, but the fact remains: 7% of your elementary school children are covered in drug-resistant fungus. That's just nasty.

Children's Mercy Hospitals and Clinics has issued a press release about it, and hopefully people will pay attention. Sharing hats, combs, anything that touches your head? Knock that crap off right away.

Digg this Stumble Upon Toolbar

Friday, October 30, 2009

Hey, Doctors! Time to Feng Shui it Up!

So, the Mayo Clinic conducted a study to see how patients were affected by the rooms where they met with their doctors. (Not the exam rooms where they run all the tests on you, the rooms where you actually sit and talk with your doctor about what's wrong with you and what might go wrong with you.)

It was an okay test, I suppose. It turns out that in "experimental" setups where patients sat next to their doctor and looked at the same computer screen during the consultation, patients were more engaged in their treatement and received a better quality of care. That seems like kind of a no-brainer; if you give patients a chance to get involved with their own treatment, they will. (I imagine that this new setup for doctors is a pain in the ass, though.)

I don't think that the study went far enough. Sure, patients and doctors do well when side by side facing a computer screen. What about on roller skates and facing a computer screen? Or when suspended over a shark tank and facing a computer screen? What if the computer screen is replaced with a medical textbook? An informational documentary on molluscs? An angry badger with a toothache? Inquiring minds want to know! For Science!

Digg this Stumble Upon Toolbar

Thursday, June 11, 2009

Insomnia for Cancer

Staying up late slows the disease's progress.

I wish that was the case. It seems like the press release from the University of North Carolina at Chapel Hill is a bit of a tease in that respect. The title indicates that messing with your circadian clock can stop cancer growth.

It actually sounds kind of inconclusive to me. Original studies showed that nurses and flight attendants who messed up their circadian rhythm (the way their bodies tell night from day, usually because they were working through the night) ended up with higher rates of cancer. So scientists concluded that messing up your circadian clock by keeping odd hours gives you cancer.

Now it looks like actually messing with your genes, and restructuring the biological cells of your body to change the circadian clock can slow down cancer. They altered the genes of some mice and found that they lived longer. So staying up late is still a bad idea, cancer-wise, but they're trying to find better ways of altering the way your cells tell what time it is.

Digg this Stumble Upon Toolbar

Tuesday, June 9, 2009

Granny Tipping

Knocking old people around could provide a valuable service.

I was just looking at a paper in the Journal of Neurophysiology that presents new theories for preventing falls. Not that I read the Journal religiously or or anything. I guess I stumbled across it the same way you find anything out there on the internet.

Anyway, professors at the University of Illinois are experimenting with the way you keep your balance. They think that by exposing people to near-slips in laboratory conditions helps to train them to avoid actual slip-and-fall accidents in the real world. So the study was a lot of tipping people over on oil-lubricated vinyl, which probably wasn't nearly as erotic as it sounds.

That means that whenever you jostle old people in line and on the subway, you're being a good citizen, helping them develop a better sense of balance so they don't fall down on their own, right?

Digg this Stumble Upon Toolbar

Friday, April 24, 2009

It's Okay to Sleep with Your Dog

Not to, like, do it with your dog, because that's nasty, but it's okay to share a bed with your dog. The University of Kansas says that you can let your dog lick your face and sleep in your bed without worrying about germs. Apparently, more than half of all dog owners are into that kind of thing.

The press release gets a little muddled towards the end, though. The researchers tracked the spread of E. coli bacteria to determine whether or not it was "safe" to get overly affectionate with your dog. Then it gives all kinds of information about e-coli, how it is spread, and whether it can develop drug resistance.

Interestingly enough, it looks like more drug-resistant e-coli bacteria is spread from dog owners to their pets than the other way around.

Digg this Stumble Upon Toolbar

Thursday, April 23, 2009

Luckily, Bloggers Aren't Licensed

It turns out that licensed doctors can stop practicing medicine for as long as they want, and then pick up the job again later without having their competency re-assessed. Fair enough, you can keep your driver's license valid and go without driving for years, bu no one will ask you to re-take your driver's test before you can get back behind the wheel. Of course, driving a car and performing brain surgery aren't exactly alike.

Researchers at the University of Michigan are concerned that states aren't checking up on the competency of inactive doctors who return to active practice. Of course, since the licensing board for the District of Columbia is the only one that requires a minimum number of patient visits to keep a license registered as "active," most of these boards wouldn't even know which ones were in danger of getting rusty.

Of course, since bloggers don't need a license to do their thing, I can pick back up where I left off without worrying too much.

Digg this Stumble Upon Toolbar

Monday, March 16, 2009

Good News for Gigolos

Harvard Medical School has found a way to "wipe out" the Herpes virus. I guess it's good news for anyone with a cold sore, too.

This new cure messes with the RNA of the virus. It ends up unable to replicate, and unable to get picked up by the body. At least, that's how it has worked for the mice so far, and hopefully it will also work in people.

I hope it works for people. I don't have any plans to contract herpes in my future, but it's good to know that Harvard's got my back if I ever change my mind. Of course, there is a downside to this. That's right. More ads like those Valtrex commercials where attractive people tell you how great life is now that they've found a cure for their herpes.

Digg this Stumble Upon Toolbar

Tuesday, February 24, 2009

Deaf Mice = SCIENCE!

Would you want to be deaf? I wouldn't. I mean, I'm watching the Amazing Race this season, and that deaf kid's doing a pretty good job (probably better than I'd do on the race--those hillbillies from Virginia were more my speed), but I'm pretty happy being able to hear things.

Now, what if someone wanted to trade a little bit of your hearing in exchange for more damage-resistant ears? You wouldn't be able to pick up small noises or soft whispers, but you'd be able to attend rock concert after rock concert without needing earplugs.

Researchers at Johns Hopkins Medicine have found that the ear has a mechanism that protects you against hearing loss. You don't need to go partially deaf to take advantage of it, either, it's just how they proved that it existed.

They messed around with this ear system that limits just how much sound mice could hear, and the ones that retained their full hearing were more susceptible to permanent hearing damage when exposed to loud noises. The ones that heard less also suffered less damage. In theory, by manipulating this system (or at least understanding more about how it works), we could figure out how to listen to loud music at clubs and still be able to hear properly the next day. Sign me up!

Digg this Stumble Upon Toolbar

Saturday, January 31, 2009

They Won't Have To Hunt Us

So, we're using robots to help stroke victims regain their mobility.

It makes sense. I wouldn't want to spend my day watching someone do boring, repetitive motions to rebuild their muscle strength. In fact, it's so boring and repetitive that the stroke victims don't like doing it. The breakthrough in this case is that by involving virtual reality environments (read: having patients use the robot as a controller in a video game), stroke victims will work at the rehab exercises longer and regain function faster.

Sure, it sounds helpful at first. Until you think about what's in it for the robots. Not only will we be providing them with massive amounts of valuable data about how we move, where our mobility weaknesses are, and how we can be stopped from moving, but we're also giving them the chance to harm us directly. It's all fun and games physical therapy until the patient has his legs ripped off. We won't need faster robots that hunt us like dogs, we're already walking right into their cold metallic hands!

Digg this Stumble Upon Toolbar

Saturday, January 24, 2009

Vampire Clothing

Yarn that feeds on blood. That's certainly something the world needs more of. Luckily, the University of Michigan has invented bloody yarn that conducts electricity.

It's supposed to be exciting because it's (partly) an advance in nanotechnology. The yarn is coated in carbon nanotubes by soaking it in a special solution, and the nanotubes conduct electricity. By adding anti-albumin to the solution, the yarn conducts even more electricity when it comes into contact with blood.

Personally, I think this sounds about as useful as that clothing that changes color when your body temperature changes. The researchers have high hopes, though. They think that the clothes can be tied into a device like a cellphone or PDA so that when people start bleeding, the device calls for help (electronically, by calling an emergency service, not, like, by screaming loudly). We'll just have to wait and see how they do with that.

Digg this Stumble Upon Toolbar

Thursday, January 22, 2009

I Can't Believe It's Not Bone Marrow!

Well, actually it is bone marrow. It's just bone marrow that's created artifically, and not meant to be implanted into the human body. Still, it cranks out red and white blood cells just like the real thing, and that's Kind Of A Big Deal.

If, like me, you're wondering why anyone should bother making bone marrow if they're not going to put it into people, the University of Michigan has some ideas. Hell, that's why they created it in the first place. This artificial marrow is supposed to allow new ways to test drugs in development, allow for closer study of problems with the immune system, and most importantly (to me) generate a supply of blood for transfusions. If it means that I won't have people begging me to give blood anymore, I'm all for it!

What impresses me is the amount of work that went into it. They had to design a tiny 3-D scaffold to develop the material. Because of the conditions inside the human body, they were very particular about where the openings were for the cells and how large they were so that the cells interacted properly. I suck at sculpture, and can't even put together furniture from IKEA, so it's not something I would have been able to do.

Digg this Stumble Upon Toolbar

Monday, December 29, 2008

Biological Clocks In Reverse

The candle that burns twice as bright lasts half as long, and until recently it was thought that that the fly that produces twice as many offspring lives half as long. Thank goodness, then, for the USC biologists who found a way to express genes for fruitflies to have more children and expand their lifespan by 5 to 30 percent. I'm sure this is welcome news to all the career-minded fruitflies out there who were worried about their biological clocks.

Of course, the USC researchers are cagey, stating that "the implications for mamals are not clear." I'll tell you what I'd like them to clarify: whether I can live longer by doin' it more often. Oh, sure, there are alread quacks out there making just that claim, but I'd like to have some hard scientific evidence before I commit. (Hee hee, "hard"! Wait, I mean "That's what she said!")

So, in five or ten years, we may have some useful information about human reproduction and genes that can reduce aging. In the meantime, we're stuck with a lot more flies that will be hanging around a lot longer. Way to go!

Digg this Stumble Upon Toolbar

Tuesday, December 23, 2008

Dementia and the Internet

What does FTD (frontotemporal dementia, not the florist) have in common with internet message boards? They both give people extreme difficulty detecting sarcasm.

FTD is the second most common form of dementia, and leaves its victims unable to detect the moods of other people. One in 4,000 people are suffering from FTD and unable to tell when their caregivers are depressed or angry. They're also quite frequently conned into giving away large amounts of money (no, there is no directory of FTD patients. I checked.)

Researchers have now developed a test to diagnose FTD, to tell if patients can spot discrepancies between a person's words and the tone of their voice. Basically, they have actors run through a script once playing it "straight," and a second time loading up their words with sarcasm ("I'm ever so glad we're spending millions of dollars to study soil composition.") FTD patients always take the spoken words literally.

"When questioned about the applicability of the test to people from countries not renowned for their appreciation of sarcasm or irony, Hodges said the test could be modified." Are they sure he wasn't being sarcastic?

Digg this Stumble Upon Toolbar

Monday, December 22, 2008

Vibrating Keeps You Slim (WARNING: May Contain Gratuitous Use of the Word "Bone")

Oh, the things they do to mice, in those science labs of theirs. Recent studies have shown that exposing mice to "high frequency and low magnitude mechanical signals" (read: vibrations) can keep them from developing fat, and also helps to regulate their bone production. This sounds to me a lot like those old school exercise machines with the belt that would jiggle you around, but I'm sure that this study was done for valid medical reasons and not just because the mice wanted to be members of a very tiny gym.

Somebody with deep pockets had to see some sort of potential in it, because they're handing out a grant for $1.8 million to study the phenomenon further. Okay, you twisted my arm, the "somebody" issuing the grant is the National Institutes of Health.

It does seem like good news, in that this is supposed to be research that will treat diabetes and osteoporosis. More than 60% of Americans are overweight and obese, while approximately 200 million people worldwide are struggling with osteoporosis. Still, if I was going to use loaded words like bone, vibration, and possibly vibrator in a story of my own, I think it would steer clear of fatties and old people. And it probably wouldn't be something that was safe for kids to read.

And yes, I could have put a Beach Boys joke about "good vibrations" in this post, but I chose to take the high road.

Digg this Stumble Upon Toolbar

Sunday, December 21, 2008

Sea Worms and Shattered Faces

If I lived near a beach, I'd spend most of my time walking along it and looking for crap that I could use as a makeshift glue to hold things in place inside my body. Wouldn't you? I mean, what else is there worth doing at a beach?

Sadly, any breakthroughs I wished to make in the glamorous field of seaborne adhesives look like they've already been made. The University of Utah has been studying Sandcastle worms, which live in intertidal surf (naturally, Utah would be the source of that kind of research, due to its proximity to the oceans). The worms build their homes by gluing together whatever materials are on hand, be they eggshells, beads, sand, etc.

The glue is worth studying because most current glues don't stick to wet surfaces. How often do you think surgeons deal with dry surfaces when they're trying to reconstruct broken bones? Since current glues are useless in the bloody environs of the human body, this new worm glue might help hold small bone fragments in place while they heal (which is necessary because screws and wires aren't great for smaller bone pieces).

It's premature to celebrate, though. The synthetic worm glue that researchers have synthesized only performs 37% as well as commercial superglue. I'd say that some more research is in order.

This article was fun to read for a few reasons, but mostly because of the phrase "shattered faces."

Digg this Stumble Upon Toolbar
The header image is adapted from a photo taken by Bill McChesney and used under a creative commons license.
 
ss_blog_claim=59c833aa066112eeabade1b22648d49b ss_blog_claim=59c833aa066112eeabade1b22648d49b