Non-Smoking Causes of Lung CancerThe stigma associated with lung cancer is that it’s a smokers’ disease and they’ve brought it on themselves. While it’s true that 90 percent of lung cancer cases are smoking…
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December 02, 2013
Cancer
Family Health and Wellness Host: Did you know even if you're a non-smoker, just because you live in Utah you have an increased chance of getting lung cancer? We're going to talk with Dr. Shamus Carr of Huntsman Cancer Institute about what's causing that coming up next. Announcer: Interesting, informative, and all in the name of better health. This is The Scope Health Sciences Radio. Host: Lung cancer, what causes it? I think everybody thinks it's only smoking. Dr. Carr: Well, 90% of patients who get diagnosed with lung cancer, it is related to smoking. However, what's interesting is that there's 10% who do not. More interesting is here in the state of Utah 30% are non-smokers. Host: Really? What's the cause of that? Dr. Carr: There's a lot of things that have been proven to be the cause. Radon, which is a colorless, odorless gas which is in the basement of pretty much everybody's home here in the state of Utah, is a risk factor. Host: Why is it so predominant here? Dr. Carr: It's the geology, so it just comes up through the ground and here it is. Additionally, we make homes so well today, they are air tight. They keep the cold out. In the winter they keep the heat in. In the summertime they keep the heat out and they keep the cool in. If you have a colorless, odorless gas that's coming up through your basement it's not going anywhere. You run your air conditioner all summer, that air doesn't go anywhere. It just keeps recirculating in your house. Host: What about the inversions that we get? Dr. Carr: That's a great topic, and I think we're going to learn a lot more about that here in the coming years, pollution in general. In fact, there was just a recent study that just came out of China where they looked at the incidence of smoking over the last thirty years, and it hasn't changed. They smoke a lot over there, but the amount of smokers hasn't changed by percentage. Host: We talked about radon. We talked about air pollution, not necessarily proven yet, but likely. Dr. Carr: Very likely. Host: What are some other reasons we've got this 30% incidence of lung cancer in non-smokers here in Utah? Dr. Carr: I think there is also, believe it or not, we're going to find that there's going to be a genetic component. I think there are people out there whose bodies are essentially predestined for this. I've met a number of families, non-smokers, dad died of lung cancer and they said, "Oh, well he worked in the mines," so they kind of attributed it to something else. Then all of a sudden there's somebody else who's got lung cancer, then somebody else. We're starting to see that kind of issue. Host: Is there research currently going on looking into this? Dr. Carr: Yes. Host: When do you think we'll see some results? Do you have any idea? Dr. Carr: As soon as the person who's pulling the data gives it to me. We had a meeting just recently about this. The preliminary data is very striking, very striking that there's going to be a genetic component that we can start talking about in lung cancer, but not yet published. Host: You're saying that 30% of people who get lung cancer in the state of Utah are not smokers, so even though I don't smoke I've got an increased chance just because I live here. Is there a stigma attached to people who get lung cancer in general because for so many people it is because of smoking? Dr. Carr: Yeah, you know, I think there is. It's a shame because it's like, "Oh, they did this to themselves. They were bad people. They smoked cigarettes. They weren't healthy." I think that we need to get beyond that. I think this is a multifactorial problem. The incidence of smoking in the United States continues to decrease, in fact, nationally we're under 20% for the second year in a row. Host: We're your daily dose of science, conversation and medicine. This is The Scope, University of Utah Health Sciences Radio. |