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Posts with tag cancer

Engadget

Promising New Computer Chip Filters Out Cancer Cells

CellsNormally, we get excited when a slab of silicon makes our games run at a smooth 60 frames per-second, but in this case we're impressed with a new chip that filters out cancer cells. The device, created by some impressive souls at Princeton and Boston University, directs and focuses streams of cells in a liquid. Like a change sorter, it then separates regular cells form unusual ones.

The silicon wafer is tacked with tiny pillars that catch abnormal cells that are, in the end, potentially cancerous. The device hasn't been used to any major extent, but we'll keep an eye on this promising discovery. [Source: New Scientist]

Blogging May Offer Health Benefits

Blogging as Cancer Treatment?
Blogging is fun, informative, and is amazingly still gaining in popularity after all these years. Did you know it's good for your health, though? According to a recent report in the magazine Oncologist, cancer patients who wrote about their experience and treatment felt measurably better than those who did not. Such behavior is called "expressive writing," and blogging definitely falls under that category.

Expressive writing also includes keeping a journal and writing poetry and the like, however blogging is seen as especially beneficial because of the direct ability for people to receive encouraging comments from others. Doctors are finding that those who partake in expressive writing not only feel better but sleep better too, something even those in good health can appreciate. This is stark contrast to the fears many recently had about blogging being a potential health risk after prolific blogger Om Malik's heart attack at 41.

Now, though, doctors seem to be saying "write two posts and call me in the morning." So, the next time you're wide awake at night don't reach for the remote control, start writing. Just be prepared for some less-than encouraging comments, too. [Source: Scientific American]

Injectable Tumor Probe Tracks Cancer Treatments

Injectable Tumor Probe Tracks Cancer TreatmentsRadiation, in strong enough doses, is deadly. A short exposure can certainly kill, but controlled exposures can be useful, targeting cancer cells and helping patients to fight their disease and recover. However, the administration of radiation for cancer treatment has always been a bit of a black art, with doctors having to wait for days, weeks, or months after a treatment to check on whether a tumor has been affected. Now, a new radiation-detecting probe can let doctors know exactly how much that tumor has been affected, and can do so instantly.

The probe can be inserted directly into the tumor and report the exact dose of radiation received. From that information, doctors can calculate just how much radiation they need to apply to the patient and can more specifically target the dose, thereby decreasing the debilitating side-effects so common with cancer treatment. The probe is also RFID-enabled, meaning it can be identified and read wirelessly (in the same way that RFID technology wirelessly charges drivers with tolls when they pass through toll booths).

Right now the prototype probe is about the size of a pin -- long and narrow -- but future versions are expected to be shrunk to the size of a grain of rice. Trials are expected to begin in 2010 and, if all goes well, could usher in a new era of precision cancer treatments -- which could come in handy if all the doom and gloom about cell phone-induced cancer turns out to be true!

From Engadget

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Cell Phones a Greater Threat Than Smoking, Asbestos?

Cell Phones a Greater Threat than Smoking, Asbestos?

There are plenty of people out there who believe that talking on a cell phone is just as unhealthy as sticking your head in front of an active X-Ray machine and holding it there while you engage in idle conversation with a friend. Others, though, think the first group are being overly paranoid and probably are the sort who won't use a public restroom under any circumstances for fear of picking up a flesh-eating virus. Scientific findings are still rather divided on this one, with most indicating that mobiles are perfectly safe, but an Australian researcher is bucking the trend, saying that cell phone use is a greater global threat than cigarette smoking or breathing asbestos.

Dr. Vini Khurana of Canberra Hospital doesn't actually believe that, on an individual basis, cell phones are more dangerous than those things that have been conclusively shown to be deadly in the right concentrations. However, due to the global spread of mobile phones, he believes they provide a much greater overall threat to people worldwide than either of the other two. He cites eight worldwide studies indicating a link between cell phone use and brain tumors, "a life-ending diagnosis in the vast majority of those diagnosed," and believes that in the next four years more studies will prove the link.

In the mean time we'll keep holding on to the 2005 study from the European Institute of Cancer Research that showed no cancer link among the 4,000 people who participated, and maybe try to keep our calls to a minimum.

From NEWS.com.au

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Cell Phones May Cause Salivary Gland Tumors

The negative impact of cell phone use is debated and studied almost as much as mobile pricing plans -- and the issues range from cell phone etiquette to the suspicion that placing the ubiquitous digital devices next to your head for hours on end may cause cancer.

Most studies have not been able to find a link between cell phone use and cancer, but the BBC is reporting that a new study out of Israel seems to have found a link between constant cell phone use and salivary gland cancer.

Researchers found an unusually high occurrence of salivary gland tumors among study subjects who, over the course of many years, typically had a cell phone pressed to the side of their heads for several hours a day. This type of tumor is fairly uncommon, so its presence was surprising to the researchers.

Most studies to date have looked specifically for brain tumors -- but this is the first to focus on this particular kind of salivary gland tumor. The research appeared in The American Journal of Epidemiology.

Because of their heavier than average cell phone use, Israelis are considered good subjects for studying how cell phone use could impact people over time. According to the researchers, the Israeli study shows what happens at an accelerated rate compared to other populations.

So, is this a harbinger of things to come for the rest of us? The Israeli researchers caution that more studies need to be done on broader swaths of cell phone users. In the meantime, though, they also caution that people should be more careful with how they use their cell phones.

From BBC News.

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French Health Minister Warns Against Excessive Cell Phone Use



The French may have only just jumped on the no-smoking-in-bars bandwagon, but they are leading the charge against health risks associated with cell phone use. Earlier this week, France's Ministry of Health issued a statement warning the public against excessive cell phone use. French Health Minister Roselyne Bachelot-Narquin (pictured) also went on France 2 TV and rehashed the well-worn theory connecting cell phone use and cancer (cell phones emit small amount of radiation).

While she stopped short of actually telling people to stop using their cell phones entirely, Bachelot-Narquin did say that people, especially children, should curtail their long-term proximity to phones by avoiding making calls if there's poor reception or by keeping phones away from their bodies (presumably by using a wireless Bluetooth headset).

Bachelot-Narquin acknowledged that the link between cell phone use and cancer remains specious, but cited studies in which it was found that people who used analog cell phones for more than ten years were more likely to develop tumors. What she didn't mention is that most people in countries like France and the U.S. no longer use analog phones and instead now use digital phones, and those haven't been around for much more than ten years.

So, the jury is still out on whether newer cell phones pose health risks or not.

But a statistic pointed out by BetaNews may shed some light on cell phones and cancer: Finland, the country with the highest per capita cell phone use in the world, listed tumors as the second biggest cause of death (23 percent) among men and women alike.

So maybe the French are on to something, or maybe they're just trying to one-up us on the banning of addictive activities that annoy other people. Regardless, cutting back on cell-phone-use certainly seems to be the flavor of the month (or the New Year), as evidenced by this New-York-City-woman's recent New Year's resolution.

One thing is certainly true: The questions around cell phone use and cancer are not likely to go away any time soon. And don't get us started on all the other gadgets that might be making you sick.


From Reuters and BetaNews

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Silicon Chip Detects Cancer



Cancer has remained one of the great mysteries of our modern world, but medical researchers have found some new insight into the mysterious disease. Researchers from the Massachusetts General Hospital Biomicroelectromechanical Systems (BioMEMS, for those keeping score at home, or with less than a half-hour to spare) have developed a new method of sampling circulating tumor cells (CTC's) from blood...necessary for diagnosing cancer.

The device is called the CTC-chip. While similar technology has existed for some time, earlier microchip-based systems were only used with samples of blood from finger picks, useful for problems other than cancer (think: diabetics use for testing blood glucose with a glucometer). Detecting CTCs in quantities required for cancer testing required blood samples 1,000 to 10,000 times larger. Researchers say that the chip was able to detect CTCs from 116 tested blood samples from cancer patients with a 99% success rate.

Three cheers for non-invasive cancer testing.

From DailyTech

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