Sunday, February 26, 2012

Miracles and wonders: personal cancer meds

More evidence that the world of medicine is changing in a big way.
Michael Pellini fires up his computer and opens a report on a patient with a tumor of the salivary gland. The patient had surgery, but the cancer recurred. That's when a biopsy was sent to Foundation Medicine, the company that Pellini runs, for a detailed DNA study. Foundation deciphered some 200 genes with a known link to cancer and found what he calls "actionable" mutations in three of them. That is, each genetic defect is the target of anticancer drugs undergoing testing—though not for salivary tumors. Should the patient take one of them? "Without the DNA, no one would have thought to try these drugs," says Pellini.

Starting this spring, for about $5,000, any oncologist will be able to ship a sliver of tumor in a bar-coded package to Foundation's lab. Foundation will extract the DNA, sequence scores of cancer genes, and prepare a report to steer doctors and patients toward drugs, most still in early testing, that are known to target the cellular defects caused by the DNA errors the analysis turns up. Pellini says that about 70 percent of cases studied to date have yielded information that a doctor could act on—whether by prescribing a particular drug, stopping treatment with another, or enrolling the patient in a clinical trial. 
This is only the beginning.

Thursday, February 23, 2012

Is the medical system actually working?


I frequently write about breakthroughs in medicine and suggest that innovation, not government-run healthcare, is the answer.

There now seems to be some evidence that this is true.

New data show that health spending over the past several years has been normalizing toward the rate of general inflation, rather than growing higher and higher, as had been the case almost continuously since the 1970s, J.D. Kleinke writes in The Wall Street Journal.
This moderation in the growth rate of spending predates the national recession. And it puts the lie to the claim that we need government to put the brakes on an "out-of-control" health-care system. The moderation has been driven by cumulative improvements in medical care and by insurers, and by marketplace disciplines on the demand for medical care. Consumers are finally getting more involved in managing and paying for their own care.
Contrary to the perennial doomsaying, the health-care system is—almost in spite of itself—getting better, Kleinke says.
A generation of breakthrough drugs for chronic disease, mental illness, HIV and cancer were developed in the 1980s and '90s at great cost. Dozens of these drugs—like Zocor for heart disease or Zyprexa for schizophrenia—are now widely available, many in generic form. There are now countless electronic ways of telling patients about them. And health insurers are driven by their own evolving market disciplines to make sure patients start taking them and keep taking them in the cheapest available versions. 
Combine all these new medicines, information channels and business compulsions with the slow, steady transfer of economic responsibility for health care—from corporate and government bureaucrats to consumers and their families—and suddenly health-care starts to look almost like an actual market.
Just in time for the whole thing to get swallowed up by Washington.

Tuesday, February 21, 2012

Stop reading this and ...


... go out right now and buy yourself some Vitamin D3.

Most people in America are seriously vitamin D deficient or insufficient, Patrick Cox writes. The same is true for Canada and Europe, and the implications are staggering. Cox is a columnist for Agora Financial. His conclusions, he says, come from his job as a tech investment adviser, which requires that he survey thousands of the most recent scientific studies.
Simply put, unless you are one of the few people with optimal serum D levels, such as lifeguards and roofers in South Florida, you can cut your risks from most major diseases by 50 to 80 percent. All you have to do is get enough D. It also means we can significantly reduce both health care costs and the staggering national deficit by taking a few simple steps.
Sensible sun exposure and vitamin D3 supplementation would do far more for our national health than the current health care bill. Even better, the benefits to society could be achieved without spending hundreds of billions of dollars. If an “Army of Davids” took it upon itself to spread the word, they could achieve what government is apparently incapable of achieving.
You need to read his whole article, but here are some excerpts:
Optimal vitamin D serum blood levels, attained through sunlight or supplementation, dramatically reduce the risk of many diseases other than bone maladies. Many of the most serious are ameliorated by an astonishing 50 to 85 percent. These diseases include cancers, from breast and colon to deadly melanoma skin cancers. [Read the full article for an explanation of skin cancers.]
This is not the end of the list, though. The big killers and most expensive diseases respond similarly to adequate D. I’m talking about hypertension, cardiovascular disease, and stroke. So do type 1 diabetes, type 2 diabetes (to a lesser extent), rheumatoid arthritis, peripheral vascular disease, multiple sclerosis, dementia, autoimmune diseases, and apparently even viral diseases such as H1N1 and AIDS.
I predict that other diseases will also be linked to vitamin D insufficiencies as more studies are performed. Even conditions such as autism and schizophrenia may be directly related to prenatal or infantile vitamin D deficiency.
I take 2,000 IUs of Vitamin D3 a day, a level I got from a pharmacist. I've had only one test for Vitamin D, and that was ordered by a urologist. Here's what Cox recommends:
The NIH’s current recommended dosage for vitamin D supplementation remains basically unchanged since it was established to prevent rickets. In fact, the maximum safe dosage of vitamin D3, the preferred dietary form, is currently 2000IU. This is extremely unfortunate because it takes about a hundred IU to raise serum blood levels by 1 ng/ml in a healthy adult. To get into the optimal range, 40 to 60 ng/ml, one would therefore have to take 4000 IU daily. It would take even more if you were obese, are taking certain medications, or have one of a number of medical conditions that degrade or prevent the creation of usable D. The evidence, incidentally, is that 10,000IU is entirely safe.
You should talk to your doctor, of course, but most doctors I know don't talk much about vitamins. Vitamins weren't part of their training. Read Cox' article and decide for yourself.

Thursday, February 2, 2012

Eat your broccoli, boys and girls

And don't cook it too much.
Broccoli has been of particular interest to scientists because it contains the highest levels of certain glucosinolates, a class of phytochemicals that many believe may reduce the risk of prostate, breast, lung and colorectal cancer. 
When eaten as a raw or lightly-cooked food, enzymes in the broccoli help to break down the glucosinolates into two valuable compounds of intensive research interest -- sulforaphane and erucin. However,
A necessary enzyme called myrosinase is missing from most of the supplement forms of glucosinolates, a valuable phytochemical in cruciferous vegetables. Without this enzyme found in the whole food, the study found that the body actually absorbs five times less of one important compound and eight times less of another. 
Intensive cooking does pretty much the same thing. If broccoli is cooked until it's soft and mushy, its health value plummets. However, it can still be lightly cooked for two or three minutes, or steamed until it's still a little crunchy, and retain adequate levels of the necessary enzyme.
Eat your enzymes, boys and girls. 

Wednesday, February 1, 2012

You won't have to get sick


Dr. David Agus is a professor of medicine and engineering at the University of Southern California and co-founder of two personalized medicine companies. Here's what he sees in the near future.
The end of illness is near. 
Today, we mostly wait for the body to break before we treat it. When I picture what it will be like for my two children to stay in good health as independent adults in 10 or 20 years, I see a big shift from our current model. 
I see them being able to monitor and adjust their health in real time with the help of smartphones, wearable gadgets—perhaps like small, invisible stickers—to track the inner workings of their cells, and virtual replicas of their bodies that they will play much like videogames, allowing them to know exactly what they can do to optimize every aspect of their health.What happens when I take drug x at dosage y? How can I change the expression of my genes to stop cancer? Would eating more salmon and dark chocolate boost my metabolism and burn fat? Can red wine really lower my risk of heart attack?
From a drop of their blood, they will be able to upload information onto a personal biochip that can help to create an individualized plan of action, including both preventive measures and therapies for identified ailments or signs of "unhealthiness." (Other body fluids—like tears and saliva—might be routinely tested, too.) They would be on the lookout for problems like imbalances in blood-sugar control, a risk factor for diabetes, and uncontrolled cell growth, which could signal cancer. Their doctors won't just examine them once a year; they will continually monitor the next generation of patients, offering advice along the way.
And there's more. 
What is equally exciting is that this patient data will be added to a universal database that can be aggregated by powerful search engines like Google and constantly fed into new trials and experiments—speeding up our understanding of which drugs work best for which people. The database might show, for example, that people with a particular genetic profile respond to one type of cancer treatment but not another. As more people anonymously add their health data, this database would become more and more effective as a tool for preventive medicine.
Our health care "system" -- which wasn't designed as a system and doesn't operate as one -- is on its last legs.
Today, most people who are concerned about their health follow sweeping, general guidelines. If you want to lose weight, you are likely to pick a diet that advises eating more fibrous vegetables and cutting back on processed sugar. If you want to reduce your risk for cancer, you avoid tobacco smoke, exercise regularly and take early detection seriously.
The problem with health care today is that we don't know enough about the body to practice preventive medicine actively. With limited knowledge, diagnostic medicine makes sense. If we don't know what we're trying to prevent or how best to do it, we have to wait for an obvious symptom to emerge in order to take action. At that point, we're usually treating a disease that has had ample opportunity to progress.
Read this twice and call me in the morning.