Ohio scientists have demonstrated that diesel exhaust induces the growth of new blood vessels that send blood to supply to solid tumors. This is the first evidence of how exposure to diesel fumes can cause cancer.

The researchers found that more new blood vessels sprouted in mice exposed to diesel exhaust than did in mice exposed to clean, filtered air. The same changes happened in both healthy mice and in sick animals. This suggests, the scientists say, that previous illness isn’t required to make humans susceptible to the damaging effects of the diesel exhaust.

Mission Healthy Men is a campaign in Austria to motivate men to become as health-conscious as women and to get health check-ups, especially for prostate cancer.

Under the slogan “Prevention is the future” the campaign is fundraising among banks, corporations, drug companies and orchestral concert-goers, while aiming to impact health choices by regular guys who get their autos serviced at regular intervals — or did before the recession — yet ignore their own health.

Deaths and diagnoses for prostate and several other cancers fell between 2001 to 2005, the latest years for which data have been analyzed, according to reports this week by the National Cancer Institute and American Cancer Society.

Although overall cancer death rates dropped for the past 10 years, NCI says, this is the first time cancer incidence (the rate at which new cancers are diagnosed) has dropped along with overall death rates from cancers in men and women in most racial and ethnic groups.

A daily dose of adult-strength aspirin may modestly reduce cancer risk in populations with high rates of colorectal, prostate, and breast cancer if taken for at least five years.