A UCLA study recently linked increased physical activity at work with a decreased chance of developing prostate cancer. In addition, it linked exposure to TCE (amongst a handful of other chemicals) with increased rates of prostate cancer. According to UCLA's Johnson Cancer Center:

Researchers studied more than 2,100 men who worked at the Rocketdyne facility in the San Fernando Valley, many of whom were exposed to radiation and chemicals that may have increased their risk for certain cancers. The research team identified 362 men who developed prostate cancer and compared them to 1,805 men of similar age and socioeconomic status who did not get prostate cancer.

The study, done in conjunction with researchers at the Olive View-UCLA Education and Research Institute and the University of Michigan, appears in the February issue of the journal Cancer Causes Control.

"The message from this study for today is that if you're more active, you may be able to prevent this cancer from happening," said Beate Ritz, a Jonsson Cancer Center researcher, an associate professor of epidemiology in the UCLA School of Public Health and the study's senior author. "If you have a desk job, do something physically active to counterbalance it."

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The study found that the men who developed prostate cancer were less likely to hold the more physically active jobs. Those that got cancer also were more likely than the control group to be highly exposed to the chemicals that were evaluated, including hydrazine, benzene, mineral oil, polycyclic aromatic hydrocarbons (PAHs) and trichloroethylene (TCE), which are known or suspected carcinogens.

Though the focus on physical activity appears to be the main thrust of this research, we think the TCE-related finding is worth highlighting.

Read the news about the study here. For the study itself ("Nested case–control study of occupational physical activity and prostate cancer among workers using a job exposure matrix"), see here.