Posts Tagged ‘biotech’

…yes, it’s as complicated as it sounds.

Still, the field is real and holds interesting promise for humanity. We tread ever closer to becoming biomancers, masters of our own biology. No sickness, no pain, finely-tuned brains…the future looks promising.

In the summer of 2007, a team of Stanford graduate students dropped a mouse into a plastic basin. The mouse sniffed the floor curiously. It didn’t seem to care that a fiber-optic cable was threaded through its skull. Nor did it seem to mind that the right half of its motor cortex had been reprogrammed.

One of the students flipped a switch and intense blue light shone through the cable into the mouse’s brain, illuminating it with an eerie glow. Instantly, the mouse began running in counterclockwise circles as though hell-bent on winning a murine Olympics.

Then the light went off, and the mouse stopped. Sniffed. Stood up on its hind legs and looked directly at the students as if to ask, “Why the hell did I just do that?” And the students whooped and cheered like this was the most important thing they’d ever seen.

Because it was the most important thing they’d ever seen. They’d shown that a beam of light could control brain activity with great precision. The mouse didn’t lose its memory, have a seizure, or die. It ran in a circle. Specifically, a counterclockwise circle.

Algae and Light Help Injured Mice Walk Again

…even if you don’t read the article in the link, click it to watch the vid. Amazing stuff.

Chien-Te Wu and his colleagues at the Brain and Cognition Research Centre in Toulouse used a visual phenomenon called motion-induced blindness, in which a constantly rotating background causes prominent and motionless visual stimuli to disappear and reappear, as demonstrated in the video below. Fixate on the flashing green spot in the centre, and you’ll notice that the surrounding yellow spots begin to disappear and reappear after about ten seconds. Then replay the clip and focus on any of the yellow spots; you’ll see that it is a visual disappearance illusion. Exactly how it works is unclear; according to one hypothesis it is due to the properties of neurons in area V1 of the visual cortex.

The rest is here.

…is in trouble! Quick! Call Batman!

Opinions differ on how long the Cavendish can survive the new onslaught, and on the best way to tackle the threat. This time, unfortunately, there is no obvious back-up variety waiting in the wings. So far, banana science has provided scant few approaches for improving disease resistance. One method involves the traditional techniques of selective breeding: although banana plants are clones, very occasionally they can be persuaded to produce seeds through a painstaking process of hand pollination.

Only one fruit in three hundred will produce a seed, and of these seeds only one in three will have the correct chromosomal configuration to allow germination. The seeds are laboriously extracted by straining tons of mashed fruit through fine meshes. Research stations in commercial banana growing countries, such as Honduras, engage large squads of banana sex workers for such tasks, and to screen the new plant varieties for favourable characteristics.

The rest of this Damn Interesting article is here.

…that prove that the human body is a f****** amazing machine.

Two large studies, reported in 2003 and 2004, found that middle-aged men who had (or at least remember having) at least four orgasms a week throughout their 20s, 30s and 40s had a reduced risk of prostate cancer by as much as one-third. Some researchers speculate that ejaculations may clear the prostate of carcinogens.

See? The health of the male gender is in your hands, ladies!

The rest is here, along with some very cool pictures and the other fourteen facts.

The crap we scrape off of our homes and whatnot to keep it clean actually has the ability to create human proteins?

This made the result of the experiments carried out by researchers in the group led by Martin Fussenegger, Professor of Chemical and Bioengineering at ETH Zurich, all the more astonishing. In collaboration with researchers at the University of Freiburg im Breisgau, the PhD student Marc Gitzinger carried out tests to see what happens when unmodified human or mammalian genes are inserted into the moss genome. They transferred the foreign, unmodified genes into the moss and discovered that the moss was easily able to manufacture the proteins encoded therein.

This cannot be taken for granted, since the same process does not work when a mammalian gene is implanted into what are known as “higher” flowering plants. The reason is that sections of the start and finish sequences of the genes of animals, plants, fungi and bacteria are considerably different.
The rest is here.

Important talk about our biotech future.

It can’t come soon enough, in my opinion.

…now has a neurological correlate. Everything has a neurological correlate.

Experts have pinpointed the part of the brain that guides people when they are battling with difficult moral dilemmas, according to a study.

Highly-sophisticated brain scans show that the response is linked to certain areas usually associated with primitive emotions of sex, fear and anger.

…

Professor Jeste admitted the possibility that wisdom and free will are based on the make-up of someone’s brain rather than metaphysics is unsettling.

But he said: ‘Knowledge of the underlying mechanisms in the brain could potentially lead to developing interventions for enhancing wisdom.’

The rest is here.

A thought – we can induce religious experiences with magnets, alter our perceptions with drugs, and can even give the average person idiot-savant abilities.

The nervous system is the conduit of spirituality.

What does a brain do when it sees a friend across the street?
Answer: It gives a brain wave.

Ok, maybe that wasn’t funny. I thought it was, so there.

From a Yahoo! News Story:

“Surprisingly, just by looking at the brain data we could predict exactly where they were in the virtual reality environment,” said Eleanor Maguire, a neuroscientist at the University College London in the U.K. “In other words, we could ‘read’ their spatial memories.”

Maguire and her colleagues focused on the hippocampus, or a small part of the brain that deals with navigation, memory recall and imagining future events. Neurons known as “place cells” activate in the hippocampus and inform people of where they are as they move around.

The rest can be found here.

Very, very cool talk about a group of scientists who have figured out how to take any ordinary cell and turn it ‘back’ into a stem cell. We all know that stem cells are prototype cells that can form into anything in the human body, so the ability to take a few skin scrapings and turn it into new white blood cells, bone marrow, heart, or liver, is nothing short of astonishing and heartening.

Hey, maybe we’re not all screwed after all!