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Archive for February 16th, 2012

Nanotechnology applied to repairing/killing cancer cells

Posted by Charles II on February 16, 2012

Elizabeth Lopatto, Bloomberg:

Scientists have created a robot made entirely from DNA that can be instructed to find diseased cells in the body and deliver a payload to kill or reprogram them, according to a study from Harvard University.

The robot was constructed by folding DNA strands into a shape that looks roughly like a clamshell. The researchers programmed the nano-sized device to open in the presence of leukemia and lymphoma cells in a laboratory dish, where they delivered immune system antibodies that caused the cells to self-destruct, according to a report in the journal Science.

Besides cancer, the robots may also benefit people with autoimmune disease, Douglas said. One day, the robots might be used to find immune cells wrongly attacking the body and reprogram them, he said.

As I read Bloomberg, the DNA is useful because it unzips when it comes in contact with a target. So, the technique is not unique to DNA. But DNA synthesis is well-established and easy to tailor to protein targets.

Posted in science and medicine | 3 Comments »

Burnt sacrifices to the war on some drugs

Posted by Charles II on February 16, 2012

DemocracyNow:

JUAN GONZALEZ: We turn now to Honduras, where a fire swept through an overcrowded prison Tuesday night and killed more than 350 inmates. It’s the world’s deadliest prison fire in a century. According to the Associated Press, most of the inmates who died had never been charged, let alone convicted. More than half were either awaiting trial or being held as suspected gang members.

A local official says an inmate called her moments before the fire and told her he was going to set the facility on fire and kill everyone inside. Many of the prisoners burned to death in their cells.

AMY GOODMAN: Honduran prisons are plagued with overcrowding, due in part to drug trafficking arrests. The United Nations says Honduras also has the highest murder rate in the world. All this comes as the country recovers from a 2009 coup.

For more, we’re joined by Dana Frank, professor of history at University of California, Santa Cruz, and Honduras correspondent for The Nation magazine. Her most recent piece appears in the New York Times; it’s called “In Honduras, a Mess Made in the U.S.”

What happened here? What do you understand, Professor Frank?

DANA FRANK: Well, let’s be clear right off: this was not a natural disaster. There were two previous prison fires like this in 2003 and 2004, when people died because the police either deliberately set the fire to kill gang—alleged gang members or because they allowed it to happen because of overcrowding. There have been reports saying that this should have been cleaned up long ago, and it’s just gotten worse and worse.

The other thing to understand is, when the fire broke out, the prisoners were locked down. There are many, many, now, testimonies from prisoners who managed to survive, saying that the police—the police, they’re guards. And I want to understand that these—underscore that these are regular police that manage the prisons; they’re not prison guards in a separate system. The prisoners that escaped are saying—or that survived, are saying that the police threw away the keys, they laughed at them, they refused to open the cells. And one prisoner is saying that they shot at the prisoners. And when the prison—and so, these people died because they died in their cells screaming, trying to get out, locked down in their cells. And human rights advocates are underscoring that penitentiary officials have a sacred duty to protect the lives of those inside.

JUAN GONZALEZ: And Dana Frank, there were some reports that firefighters were delayed in being able to get to the fire to put it out?

DANA FRANK: Absolutely. The police wouldn’t let the firefighters into the prison for 30 minutes. They also tear-gassed and fired at family members who were rushing to the prison to try to figure out what was happening. And there were also the firefighters 15 minutes away at the U.S. Air Force base, at Soto Cano, that were also not there.

AMY GOODMAN: Hundreds of prisoners killed. Can you talk about the relationship between the Honduran government and the United States and where you think that weighs in here?

DANA FRANK: Well, you know, but this is the ongoing coup regime. It’s really important to not act like the coup that happened on June 28th, 2009, is somehow over. The same people are controlling the Honduran government. Pepe Lobo has appointed, for example, Daniel Orellana, the head of the prisons, was one of the—the chief of the police at the time of the coup.

And all of this is being supported by the Obama government. You know, the Obama administration has, in fact, just in its budget two days ago, asked for a doubling of the U.S. military aid to Honduras. They’ve just spent $50 million to expand Soto Cano Air Force Base, as this—knowing full well about the total corruption of the ongoing Lobo government. And this is a really—a tremendously outrageous thing that the Obama administration is doing, and people need to be paying more attention to this.

JUAN GONZALEZ: And Dana Frank, the impact of the spreading U.S. war on drugs on—especially on Central America, as thousands of inmates from U.S. prisons are released from prison, deported down there, the growth of crime and drugs, and then the government crackdowns on drugs in those countries?

DANA FRANK: Well, you know, human rights defenders in Honduras will be the first to say that the drug problem is very serious, and it’s growing. They would also be the first to say that it’s mushroomed since the coup, in this context on complete impunity. There’s no functioning judicial system. And it’s important to understand that the Lobo government is completely in bed with the drug traffickers. So you can’t say here’s the government helping clean up the drug traffickers, and here’s the drug traffickers; it’s all corrupt from top to bottom. And the Honduran police and judicial systems are especially—are especially corrupt.

The problem is, there’s been a lot of spin saying, “Well, we have to spend even more money on the Honduran military and police in order to fight drugs.” And that’s just throwing money at the same problem, because you can’t make a distinction between the Lobo government and its police and the drug trafficking. And this is the issue all over Central America, this militarization in the name of fighting drugs, which is not what the Honduran human rights people, it’s not what the Honduran opposition is calling for. They are the first to suffer from the drug issues. But they say that this corrupt government, very highly backed and increasingly backed by the Lobo administration in the United—excuse me, the Obama administration in the United States, is the problem here. And so, it’s really important to not let this spin to the right to increase militarization of Central America in the name of fighting drugs or cleaning this up.(emphases added)

Update: KPFA take on it here. American University Professor Adrienne Pine is the interview.

Posted in abuse of power, Barack Obama, Hillary Clinton, Honduras, impunity, State Department, The Plunderbund, War On Some Drugs | 5 Comments »

 
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