March, 2010 browsing by month


A court says that genes can’t be patented – and why that’s good news for women

Wednesday, March 31st, 2010

For many years, corporations have been filing patents to claim ownership of the genes that researchers have discovered. Nevermind that these genes exist in our bodies and were designed, not by scientists, but by nature. Once a corporation or other institution gets a gene patent, that gene becomes its property.

Those who control the genes get to decide whether to allow other researchers to use the gene in further research. The gene’s “owners” also get to corner the market in potentially life-saving tests involving the gene.

That’s led to some pretty significant price-gouging of women whose genetics put them at risk for certain breast and ovarian cancers. Myriad Genetics controls the patents for the genes that are associated with about 10 percent of breast and ovarian cancers. So if your doctor told you that you needed a test to see whether you carry a gene that makes you more susceptible to these cancers, you could get hit with a bill from Myriad for a whopping $3,000.

But that’s about to change.

This week, a federal court ruled, in a lawsuit against Myriad Genetics, that its gene patents were invalid because genes occur naturally. From an article about the court’s ruling that appeared in The New York Times:

Judge Sweet… said that many critics of gene patents considered the idea that isolating a gene made it patentable “a ‘lawyer’s trick’ that circumvents the prohibition on the direct patenting of the DNA in our bodies but which, in practice, reaches the same result.”

The case could have far-reaching implications. About 20 percent of human genes have been patented, and multibillion-dollar industries have been built atop the intellectual property rights that the patents grant.

“If a decision like this were upheld, it would have a pretty significant impact on the future of medicine,” said Kenneth Chahine, a visiting law professor at the University of Utah who filed an amicus brief on the side of Myriad. He said that medicine was becoming more personalized, with genetic tests used not only to diagnose diseases but to determine which medicine was best for which patient.

Mr. Chahine, who once ran a biotechnology company, said the decision could also make it harder for young companies to raise money from investors. “The industry is going to have to get more creative about how to retain exclusivity and attract capital in the face of potentially weaker patent protection,” he said.

I take issue with anyone who claims that denying patents on what nature creates will thwart research. And I am in total agreement with the court’s decision to invalidate these patents on genes. Patenting genes invites a type of commercial perversion of what is a natural occurrence. As a researcher myself, I disagree that invalidating gene patents removes incentives for future research. There will always be research. However, the results of that research will have checks and balances rather than the current focus on the “bottom line” of profit, that takes advantage of patients and the medical community.

– Yvonne S. Thornton, MD, MPH

Pregnant or new mom and feeling depressed? Get help now.

Tuesday, March 9th, 2010

Pregnancy and childbirth alter the hormonal balance, which may explain why depression is so common at this stage of women’s lives. Up to 23 percent of pregnant women experience symptoms of depression and that figure rises to up to 25 percent among new mothers.

Many women decide to simply suffer through it without seeking help, but that could be a big mistake. According to the American College of Obstetricians and Gynecologists:

“… untreated maternal depression negatively affects an infant’s cognitive, neurologic, and motor skill development. A mother’s untreated depression can also negatively impact older children’s mental health and behavior.”

Everyone feels sad some of the time. It’s normal to have a bad day. But if your bad day stretches into weeks, for your own sake and the sake of your baby, you need to get help. If you don’t have a therapist, ask your ob-gyn for a referral if you experience feelings of hopelessness, sadness or despair. Don’t suffer needlessly. Help is available.

– Yvonne S. Thornton, MD, MPH

The controversy over male circumcision: facts and falsehoods

Monday, March 1st, 2010

For parents of baby boys, the question of whether to circumcise is likely to come up. You might make the decision to circumcise or not, depending on your religious, family, or cultural traditions. Or your decision might involve considerations about your newborn’s health. Hygiene is easier and urinary infections are less prevalent among boys and men who have been circumcised. Circumcised men are less prone to cancer of the penis. And there is some evidence that circumcised men are at slightly less risk of sexually transmitted diseases, including HIV/AIDS.

Still, you may not wish to have a surgical procedure that isn’t absolutely necessary performed on your baby.

Whatever you decide, that decision should be based on the facts and not the false controversies that have been swirling around the Internet.

Contrary to some inflammatory claims that have appeared on popular websites, there is no similarity whatsoever between male circumcision and the disfiguring procedure done on girls in some Third World countries that’s referred to as female circumcision. Male circumcision is a generally safe, simple procedure that removes only the foreskin of the penis. Female circumcision, by contrast, removes the entire clitoris and sometimes parts of the labia.

Female circumcision is a brutal, abusive act that has a negative lifelong effect on sexual function and pleasure in adulthood. Male circumcision has no effect on sexuality.

So don’t be swayed by false claims, even those made by experts. And, if you’re undecided, discuss the pros and cons of circumcision with your doctor.

– Yvonne S. Thornton, MD, MPH