HOUSTON , Dec. 10 (UPI) -- Selenium and vitamin E taken alone or in combination for an average of 5 1/2 years did not prevent prostate cancer, U.S. researchers said.

HOUSTON, Nov. 19 (UPI) -- A portion-controlled diet and exercise improve body weight and physical function in elderly cancer survivors, U.S. researchers have learned.

HOUSTON, Nov. 6 (UPI) -- U.S. cancer scientists say they have found variations in a common gene pathway can affect esophageal cancer risk.

GENEVA, Switzerland, Oct. 23 (UPI) -- U.S. scientists say an early trial of a multi-kinase inhibitor has shown impressive tumor shrinkage in patients with a hard-to-treat form of thyroid cancer.

AUSTIN, Texas, Oct. 13 (UPI) -- U.S. scientists say they've developed a delivery system that could lead to more efficient and more disease-specific vaccines.

BOSTON, Sept. 25 (UPI) -- Early-stage breast cancer patients with limited lymph node involvement may not require post-surgery radiation therapy, U.S. researchers said.

HOUSTON, Sept. 24 (UPI) -- Counting the copies of a specific gene in cells from a urine sample may provide a simple, non-invasive way to detect bladder cancer, U.S. researchers said.

HOUSTON, Sept. 11 (UPI) -- African-American women with breast cancer who have a lumpectomy are less likely to receive radiation compared to white women, U.S. researchers said.

HOUSTON, Sept. 10 (UPI) -- U.S. scientists say they've determined the protein IKKalpha suppresses skin cancer development.