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Friday, December 14, 2007
Fighting cancer with radio waves
Kanzius'story began eight years ago, when the successful businessman from Erie, Pennsylvania, retired to Sanibel Island, Florida. Kanzius thought he'd fish, relax and maybe dabble in some small radio stations. Instead he ended up fighting leukemia. Doctors didn't give him much hope at first... until he began treatment at M.D. Anderson Cancer Center in Houston, Texas. With state-of-the-art treatments, Kanzius improved. But the scars of cancer remained with him. He was haunted by the faces of others who were also stricken with the disease. He "saw way too many young people die before their time." He was determined to do something. The effects of chemotherapy kept him up at night, so Kanzius did a lot of thinking. He used his radio engineering background and equipment, and his wife, Marianne's, pots and pans, to design a machine that used radio waves to heat and possibly kill cells. He had never gone to medical school and had no real background in science, but he gained a patent for the machine. He then showed it to his oncologist at M.D. Anderson. Dr. Michael Keating found the concept attractive, because the treatment would kill off cancer cells without invading a patient's body. "It was the power of a good idea," Keating said. Keating showed it to surgical oncologist, Dr. Steven Curley, who thought of using microscopic metal bits, known as nanoparticles as heat conductors. The idea was to inject the particles into tumors, direct radio waves at the tumor and heat the particles to destroy the cancer cells. Keating also was treating a Nobel Laureate, Dr. Richard Smalley, who specialized in nanotechnology. Smalley was skeptical about Kanzius' machine, but was willing to loan nanoparticles to the project - just to see what would happen. After testing the machine, the results were promising. So promising that Curley continued his research with the device and found liver tumors in animal subjects did shrink. Curley knew he was on to something, "If we can target these nanoparticles to get into the cancer cells, and then do this treatment, there won't be a lot of side effects that people usually associate with chemotherapy." Doctors hope the machine will eventually be used to fight all types of cancers - from breast cancer to liver tumors. But human trials are at least three to four years away. The ironic thing is Kanzius' machine is designed to target cancer cells and send the radio waves directly to the tumor area. That might not work in Kanzius' case, because he has a form of leukemia, which is a fluid cancer. That means the cancer cells flow through the body and would be more difficult to zero in on. But Kanzius said he never invented the machine for himself, he just wanted to help people he saw who were suffering. "The medical world is going to say we need to treat people's cancers in a more humane way if nothing else," Kanzius said. "I hope I have changed the prevailing thinking of the medical world." John Kanzius: one man and his machine making a difference. Do you think one person can make a difference in the medical community? Tell us about that person. Writer's Note: One of the wonderful things about my job is I get to meet fascinating and inspirational people. When I interviewed John Kanzius at his home in Sanibel and met his wife Marianne, I found them to be two of the most positive, uplifting people I had ever met, even though John is fighting a life-threatening illness. They truly believe that John's machine can make a difference in the world of cancer treatment. Now in the hands of some of the best doctors in the country, it is possible that Kanzius' invention may eventually treat those diagnosed with cancer. I hope to report on the machine's progress as it goes forward towards human trials. Tuesday, December 11, 2007
Drinking, Facebook and Out in the Open
I knew this would be one of those stories that would tick people off. Someone turned me on to the Facebook group "30 Reasons Girls Should Call it a Night." I am a Facebook addict and I laughed as I read the list (my favorite is number 17: Every conversation starts with a booming, "DON'T take this the WRONG WAY but.."). Then I got to the pictures. Girls throwing up, falling down and urinating in public places. Wow. I was intrigued that people made these personal and often embarrassing moments so public. We had to investigate. Contrary to what one of my Facebook brethren think, this "tight a**" (thanks, Josh!) knows what college is all about. I went to college and lived the experience to its fullest. In fact, I think I saw my old dorm room in one of those pictures. We turned our findings into a report for Out in the Open.
The first thing I did today was log on to Facebook and check out the comments on the group's "wall." We love it when our stories get people talking and thinking. The responses were fascinating. Many people said that CNN is encouraging people to join the Facebook group by doing this story. Point taken. Others think CNN was unfair to the young women. One young lady said, "They need to get OVER this 'girls drinking epidemic' because its NOT a problem... we are YOUNG, having fun..." But others thought CNN was right on. A woman named Jennifer said, "Actually CNN has a total right to post these photos. I know that sux but you put them out there for everyone to see so you made them public. They blurred out our faces so they covered their a**es." That leads me to my last point. When journalists do a story on social networking sites, they always walk a fine line. Legally, we can show what's on the site since it is public. But there are other considerations and after long conversations, we decided not to show the faces of the women on the site. We want to know what you think. Do you think it's fair that we brought this group "out in the open"? Monday, December 10, 2007
Meet the 'Lance Armstrong mouse'
Imagine if you could live longer, be super fit, bear children at age 85 and had the ability to not only be able to run marathons, but to have an unquenchable desire for extreme exercise. Well, all this is possible - if you're a mouse. Researchers at Case Western Reserve University School of Medicine have created a new breed of mouse that some people are affectionately calling the "Lance Armstrong mouse." Physiologically, these mice produce less lactic acid during exercise. That means their muscles can go longer and harder without major fatigue, a trait that was identified in Lance Armstrong by exercise physiology researchers at the University of Texas at Austin. But the wonders of the mighty mice don't stop there. These mice can run for more than five hours straight, long after their normal rodent counterparts have given up and fallen off the treadmill. This endurance is due in part to their bodies' producing more mitochondria. For those of you who don't remember middle-school biology, mitochondria are a cell's powerhouse. The mice could run an incredible 5 km at 20 meters/minute. You can see the mice running alongside a normal mouse by clicking here http://www.cnn.com/video/#/video/health/2007/12/10/vo.mighty.mice.cnn. The lab subjects also ate 60 percent more food than the average mouse, but weighed only half as much. These mice burned just their fat when they exercised, resulting in being leaner and eating more to recover. All in all, they not only lived longer than other mice, but they could reproduce at older ages. The female mice were able to have a baby when they were nearly 3 years old -- that's 85 in mouse years. How did scientists make such a mighty mouse? They came in the form of transgenic mice -- a mouse that was genetically manipulated to research a specific gene or enzyme. Case Western University researchers engineered lab mice to have an overabundance of an enzyme called phosphenolpyruvate carboxykinase or PEPCK (pronounced pepsi-K) in their muscles. The enzyme can be found in the livers and kidneys of all animals including humans. Manipulating lab mice is a common practice in science. "In general, mice are the preferred choice because of their size, breeding efficiency and short gestation time," according to Dr. Karen Wu, a physiology researcher at Columbia University. Furthermore, mice and humans are 99 percent genetically similar according to a 2002 mapping of the mouse genome in Nature magazine. In fact, the same researchers said that 90 percent of genes associated with disease are the same in humans and mice. But hold on. Don't expect PEPCK to show up in pills, shots or supplements anytime soon. "I wouldn't dream of putting these genes in humans!" warns Dr. Richard Hanson of Case Western. "The process just wouldn't be possible in humans." Regardless of human applications, the news wasn't all good for the supermice. They are very hyperactive, aggressive and their intelligence has yet to be measured. What do you think of the mighty mouse or supermouse? Do you think we'll ever see such traits in humans? |
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PREVIOUS POSTS
• Looking back at 2007• Jillian's reflections • Rescuing Youssif • Tuning in to watch a 'miracle?' • Pre-existing conditions preclude you from insuranc... • Rating your doctor • Fighting cancer with radio waves • Drinking, Facebook and Out in the Open • Meet the 'Lance Armstrong mouse' • Losing my keys or losing my mind? ARCHIVE
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