Posts Tagged ‘complementary medicine’

Your DNA Barcode

Sunday, February 21st, 2010
Can we be DNA barcoded like a soup can in a grocery store?

Can we be DNA barcoded like a soup can in a grocery store?

How many of you would take a blood test to learn exactly how long you will live? How about whether or not you will become demented? Since the Human Genome Project ended, the genes and mutations associated with a vast array of diseases are being discovered daily and it is pretty easy to just put them on “chip” and make them available to the public.

Don’t get me wrong; gene testing already has already improved our lives. Such tests can clarify a diagnosis and better direct care, while others allow families to avoid having children with life-threatening or disabling conditions. They can be used to prevent disease before it happens, as with monitoring and removal of colon growths among those who have a gene for familial polyposis, and can diagnose common iron-storage diseases early enough to treat them and prevent them from becoming fatal. They can also help to positively identify murderers two decades after the crime.

One real problem is that many commercialized gene tests are targeted to healthy people who might be at high risk because of a strong family medical history for a disorder. Unfortunately, because of how complex we are as biological organisms, the tests give only a “probability” for developing the disorder. That means that some people who carry a mutation may never develop the disease. Another limitation is the possibility of laboratory errors. What this means is that the tests are not perfect and could be wrong.

And what happens to your job prospects and health (or life) insurance rates when it is learned through genetic testing that you might develop a significant disease? Well…nothing. Because of the federal GINA Law (Genetic Information Nondiscrimination Act) passed in May 2008, insurance companies and employers cannot discriminate on the basis of information derived from genetic tests. So, genetics has now been added to the list of characteristics first embodied by the Civil Rights Act of 1964, that states that U.S. employers cannot discriminate according to race, color, national origin, sex, or religion. And this is good.

So, go ahead and take the “23 and Me” “DeCode” or “Navigenics” genomic screens if you so desire. Get to know your DNA barcode. Maybe you will get an idea of what may be around the corner for you. And maybe, just maybe, you will take better care of yourself knowing more about your genes. Just understand that many in the medical community feel that uncertainties surrounding test results, the current lack of available treatment options, the tests’ potential for provoking anxiety and social stigmatization could outweigh the benefits of testing. You know the saying: “Too much information…”

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Music to Our Ears

Sunday, November 8th, 2009

 

Miles and Microsurgery: it doesn't get any better.

Miles and Microsurgery: it doesn't get any better.

For as long we have pounded drums and plucked strings, listening to music has affected people’s sense of well-being, lifting and consoling their spirits, inducing calm and tranquility, or the trance of dance. I have listened to the sounds of classical jazz during microsurgery operations throughout my professional career as a surgeon. Coltrane, Miles, Evans, Djavan, Caetano Veloso and all the greats sweetly waft in the operating suite and overcome the din of devices within the room. Does music in the operating room lead to less wasted and more fluid surgical motion, and therefore faster procedures and better patient outcomes? Who knows. But as the background makes the painting, the music may make the maestro.

 

A recent study suggests that listening to music in surgery may also benefit patients. Maybe this is why oral surgeons and dentists offer earphones and video glasses to their patients. Anything is better than listening to the whine of the drill during a root canal. The effect of music on cortical, limbic or higher brain centers has previously been studied in patients undergoing brain surgery. These centers control feeling, thoughts and memory. In this recent research, a neurosurgeon studied the effect of different kinds of music on deeper portions of the brain, located in the thalamus. This region is responsible for sensation, motor function, consciousness, sleep and alertness. This study of music and Parkinson’s patients is quite different from what Oliver Sacks describes in his book Musicophilia, in which music therapy is used to increase the mobility and responsiveness of Parkinson’s patients.

According to this new study in awake patients undergoing surgery for Parkinson disease, music slowed the neuronal firings deep within the brain. As a consequence, patients became physically more relaxed, calm and even slept during their surgery. And pure melodic music appeared to be the most soothing to most patients.

So music in the operating room may make more sense than we think. In addition to helping the surgeon with his surgery, it may reduce patient anxiety. This in turn, could shorten operative times, reduce the need for anesthetic medication, and lead to quicker patient recovery and shorter hospital stays. In a word, more music, less pills.

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You Are The Pill That You Eat

Tuesday, June 9th, 2009

Amber waves of grain, the stuff of our Neolithic ancestors

Amber waves of grain, the stuff of our Neolithic ancestors

At some point as we evolved, well after the Neolithic period, we started thinking that there must be a better way to get nutrients, something faster and more efficient, than through the food we have eaten for tens of thousands of years. Our fantasy of the future was encapsulated with TV shows like The Jetsons and Star Trek, where roast chickens and earl grey tea were produced by the touch of a button. Nowadays, grocery stores offer fruit smoothies, breakfast bars, energy drinks and microwave pizzas, so we can fuel up quickly and efficiently. Why sit down when you can eat while running? We take vitamins with the idea that we can rectify any potential deficiencies and even prevent illness, with the swallow of a pill. How simple, how easy, how efficient.

As a society, we are in love with “nutriceutical” supplements. About half of all adults take a multivitamin everyday and it is estimated that $75 billion worldwide is spent annually on nutriceuticals. And nonvitamin and nonmineral natural product use is so prevalent in the U.S. (40% of Americans) that the National Institutes of Health has even commissioned a new branch devoted entirely to the pursuit of complementary and alternative medicine research. This effort will undoubtedly unleash the true potential of alternative medicine. But let’s drill down on vitamins for a minute. What does the evidence really show? Well, it appears that taking vitamin supplements may not as beneficial as previously thought. Several major studies have now shown that vitamin supplements do little to prevent cancer and heart disease, while other studies report that vitamins and antioxidant supplements may actually increase cancer rates. One study concluded that folic acid supplements actually increased rates of precancerous colon polyps, and another study linked beta-carotene to higher lung cancer rates. Are vitamins then, failing us as supplements?

No one discounts the necessity of vitamins for our body’s function. Indeed, many diseases are associated with a deficiency in one or another vitamin. But we do place rather high expectations on vitamins. It’s rather narrow-minded of us to tout only a few particular nutrients in food and assign them letters of the alphabet, when many others may be just as essential to our primitive bodies, yet are unfamiliar to us intellectually. Vitamins do not exist in a void, but are part of a complex mixture of substances called food that is the real stuff of life. If anything, the fact that vitamins are getting an F in cancer prevention suggests that the way that they are absorbed in a pill is not the same as the way we extract them from whole foods that we eat.

My patients frequently ask me what supplements they should take to enhance their sexual health or fertility. The truth is that because sexual health is so thoroughly intertwined with overall health, I emphasize a whole-body approach. I don’t recommend a specific course of supplements, but antioxidants may have some value. If they wish to take a supplement, they may, but the important thing is that they get all nutrients necessary for their bodies to function optimally. The real solution to this is a well-balanced diet low in fat and sugar, emphasizing whole grains, fruits, and vegetables. That said, I do realize how resistant many people can be to changing their diet. If a patient feels they must take a supplement to compensate for poor eating habits, I steer them towards whole food supplements that contain a larger and more complex spectrum of nutrients than that found in traditional multivitamins. In all honesty however, I firmly believe in carrots from the earth and apples from trees, just like our Neolithic ancestors did.

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