Here are some of the latest health and medical news developments, compiled by the editors of HealthDay:

'GM' Food Labeling Supporters Upbeat Despite California Loss

After suffering a defeat on a ballot measure in California on Tuesday, advocates for the labeling of genetically modified foods pledged to carry their fight to other states.

The measure that would have made California the first state to require such labeling was defeated 53.1 percent to 46.9 percent, The New York Timesreported.

Despite the defeat, proponents of the measure said they were encouraged it received 4.3 million votes in support, even though they were outspent about five-to-one by food and biotechnology companies that opposed the measure.

The labeling advocates are now gathering signatures to place a similar measure on the ballot in Washington state next year, the Timesreported.