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CLAYTON, Australia -- A small number of special cells that resemble mesenchymal stem cells, bearing the possible application for major anatomic repairs, have been found in human endometrium, investigators here have found.

DENVER -- The increase in high-grade prostate cancer seen among men taking finasteride (Proscar) is probably caused by increased detection, two groups of researchers said.

DALLAS -- Patients with elements of metabolic syndrome are more likely to develop highly acidic urine, increasing their risk of forming uric-acid kidney stones, researchers reported.

SAN DIEGO -- Low-density coronary plaque detected by multi-slice CT angiography (CTA) predicted an increased risk of cardiac events in the absence of hemodynamically significant stenosis.

BOSTON -- Combinations of targeted drugs may overcome the agents' often tepid or transitory individual actions against brain tumors, researchers here said.

SAN DIEGO -- High radiation and contrast exposure with CT angiography (CTA) call into question the escalating use of the technology as an alternative to conventional coronary angiography, investigators concluded.

ROCKVILLE, Md. -- For any patient at any age, calcium and ceftriaxone (Rocephin) are a dangerous combination that can increase the risk of lethal precipitates forming in the lungs and kidneys, according to the FDA.

SAN DIEGO -- Routine screening by questionnaire for caffeine intake before pharmacologic cardiac stress testing fails to identify most patients who have detectable serum levels of the stimulant, investigators said here.

ABERDEEN, Scotland -- The contraceptive pill does not increase the overall risk of cancer if used for no longer than eight years, according to a huge British cohort study.

ROCKVILLE, Md. -- Risk of developing the neovascular or "wet" type of age-related macular degeneration is significantly reduced in patients with diets rich in lutein and zeaxanthin, investigators found.

SAN FRANCISCO -- Circulating tumor epithelial cells may open a window on the response of breast cancer to adjuvant therapy and, possibly, the risk of relapse as well, researchers said.

GARCHE, France -- Tadalafil (Cialis) may help some men with spinal cord injuries have erections sufficient for satisfactory sex, reported European investigators.

SAN FRANCISCO -- Joint or muscle pain or both prompted 13% of breast cancer patients enrolled in a trial comparing exemestane (Aromasin) with letrozole (Femara) to discontinue treatment, researchers reported here.

SAN FRANCISCO -- Anastrozole (Arimidex), an aromatase inhibitor, appears to reverse gene methylation, a marker of malignancy risk, in breast cancer.

ATLANTA -- Having more than a high school education is associated with a lower risk of dying from cancer, researchers here said.

ATLANTA -- Income status appears to play a greater role than race in explaining why some men are less likely to undergo surgery for prostate cancer and may explain why mortality is higher among minorities.

SANTA MONICA, Calif. -- In the days before Medicare Part D, many older patients simply stopped taking medications for chronic diseases when they reached a health plan's annual drug-benefit cap-similar to the government's "doughnut hole."

SAN FRANCISCO, Sept. 11 -- A retrospective study has cast doubt on the role of "boost" radiation therapy for ductal carcinoma in situ (DCIS), although the practice is likely to continue, researchers said.