Far more people have cells that briefly behave in cancerous ways then ever actually develop cancer. Most of the time, those cancerous cells are destroyed before they can do any real damage, and scientists can see evidence of this by looking at echoes of past battles with the immune system. If you've had chicken pox, some of the immune cells that fought off that disease will stick around, ready to more-quickly mount a response against a repeat attack. The same seems to be true with certain kinds of cancers. Scientists found immune cells in healthy people that appear to be primed to attack leukemia
— leftover remnants of the body's previous, successful skirmishes. Read the rest
LuAnne McNulty is an organic chemist. A few years ago, she developed severe asthma that's triggered by ... well ... organic chemistry. Not too long ago, that biological reaction would have put her out of a job. Today, she's able to conduct research (if not do it herself) and advise younger scientists with the help of really simple tech solutions
. Read the rest
Psychology professor Jamil Zaki has a nice post explaining why the findings that come out of experimental psychology should not be taken as lessons to help you lead a better, happier, fuller life
. The short version: That data is about population averages, not individuals. The goal is to better understand how the human mind works — not to categorically explain what your mind is doing. Read the rest
In a review of scientific research on the subject of handedness and intelligence, researchers found that neither lefties nor righties came out ahead. Instead, the people with the biggest boost in cognitive performance were the folks who weren't heavily wedded to a single hand. The more ambidextrous subjects were, the better they performed on tests of cognitive skills
. Read the rest
Part of the problem with the Chelsea Manning situation is that it's spawned a lot of not-terribly-well-informed discussion about the roles and experiences of transgendered people in the military. There's a risk of this one big anecdote coming to represent the whole. Enter the Kinsey Institute — America's favorite source of sexuality science — which just got a grant to do actual research on the lives of transgender service members. Read the rest
As part of an effort to understand the spread of a potentially deadly canine parasite, researchers at the University of Exeter put LEDs and glow-in-the-dark paint on 450 garden snails and proceeded to film them over the course of 72 hours.
The result is kind of gorgeous and mesmerizing, as tiny points of colored light meander in time lapse through the snails' natural habitat.
Besides the trippy display of gastropod activity, the researchers also learned interesting things: Like the fact that snails can cover as much as 82 feet in a day, and some snails save energy while traveling by using the slime trails left by others. Read the rest
Anthropologist Jennifer Raff offers this great guide, aimed at laypersons
, that will help you learn more from reading the scientific research papers you find online and prevent you from succumbing to common mistakes that often show up in Internet flame wars. Step 1: Don't rely on the abstract to tell you what's going on — read the introduction first, instead. Read the rest
The Sacramento Bee is reporting on a complicated story about last-ditch treatments and the ethics of human experimentation.
Glioblastomas are incredibly deadly brain cancers that usually kill the people diagnosed with them within 15 months. Two neurosurgeons at UC Davis ran across anecdotal evidence suggesting that glioblastoma patients who accidentally picked up infections after surgery sometimes lived much longer — one of the surgeons claims that a patient he knew of survived another 20 years. Read the rest
"Things that correlate with autism" is basically an entire genre of scientific research, in and of itself, and nobody does a better job of breaking those studies down than Emily Willingham. Her latest piece is about a recent study that correlates induced labor at birth with autism diagnosis later in life
. Read the rest
It would take a simple experiment to prove, once and for all, what causes "brain freeze". Unfortunately/fortunately the condition isn't particularly serious, so nobody has ever gotten a grant to perform that simple study
. Read the rest
The family of Henrietta Lacks — a woman whose cervical cancer cells were harvested and used in scientific research for decades without her knowledge or consent — will now play a role in deciding who has access to the Lacks' cell genome data, and for what purposes. There are loopholes in the new system. For instance, the agreement only applies to scientists who receive National Institutes of Health funding. And the genome of the cells has been sequenced so many times, at this point, that anybody who wasn't NIH funded and didn't want to voluntarily abide by the agreement essentially wouldn't have to.
But it is a big step forward, both for the Lacks family (whose own genetic information is contained in those genome sequences) and for the idea that human genetic information belongs to the people it comes from — not to whoever happens to sequence it.
The happy selfie posted here features NIH director Francis Collins posing with some of Henrietta Lacks' descendants after the agreement was announced. Read the rest
CTD units are incredibly important to ocean research, measuring three basic factors of sea water — conductivity, temperature, and depth. Almost every major research vessel has one. But the units are part of what ensures that it's expensive to get started doing ocean science. Each one can cost between $5000-$25,000. Now, a group of ocean scientists are trying to finance the design of an open-source CTD that could be built by anyone for less than $200. You can help fund their efforts at Rockethub. Read the rest
Yesterday, Rob told you about the first public tasting of a burger that was grown in a laboratory
, from strips of flesh built up from muscle stem cells. I found a couple of great links today that build on that news. First: The secret ingredient in lab-grown meat
is fetal cow blood. (It's both a significant part of the high price of lab meat, and a reason why your vegan friend won't be eating lab meat anytime soon.) Also be sure to check out synthetic biologist Christina Agapakis' perspective
— she tones down some of the hype while making it clear why lab meat is still pretty impressive. Read the rest
This week, scientists cloned a mouse
from cells found in a drop of mouse blood. That's different from other cloned mice, whose creation relied on more invasive sampling from the liver, bone marrow, and lymph nodes (read: the original animal was euthanized). Cloning mice is valuable for scientific research — it's handy to have your subjects be as alike one another as possible. Now, scientists have a way to do that without having to kill the original mouse. Read the rest
The Genera Project was started last summer to create an easily-searchable catalog of peer-reviewed scientific studies
dealing with the risk, benefits, and safety analysis of genetically modified plants. The project isn't done yet — for instance, the "easily searchable" part isn't yet active and they aren't done cataloging the 600+ studies in the database. I thought it was worth pointing this resource out to you folks, though, especially because at least 126 of the studies currently in the database are free from questionable funding
— either from big corporations or blatantly anti-GMO activist groups. Definitely a project to keep an eye on. Read the rest
Really, really intriguing piece at Nature News by Heidi Ledford. It's all about a class of patients called "exceptional responders" — aka, the people who got a benefit (sometimes a big one) from a medication or treatment that otherwise failed the clinical trial process
. When we do clinical trials, we're looking at group averages. We want to know whether a drug performed better than placebo when administered to lots of people. Sometimes, though, drugs that can't do that do seem to have a positive effect for a few lucky individuals. Now, scientists are trying to figure out why that is. What makes those people special? And how should this change the way we do research? Read the rest
Featuring five different kinds of sea ice + penguins on fast forward