Researchers have long sought to find a reliable way to see inside the human heart without having to insert tubes, inject dyes or expose patients to potentially dangerous radiation. One possible solution is the whole-heart MRI, which provides 3-D images of the heart and its blood vessels without the risk of an invasive procedure.
A new combination of a potent anticoagulant and an antidote that stops its action, has proved to be safe in its first clinical trial in humans, according to the team conducting the trial.
A peptide known to play a role in anxiety is overly plentiful in a mouse model of the inherited neurological disorder Rett syndrome and appears to underlie the anxiety-like behavior in these mice, said researchers from Baylor College of Medicine in a report that appears online in the Proceedings of the National Academy of Sciences. The finding could provide a clue to treatment for this symptom.
A pharmacy care program for elderly patients increases medication adherence, which results in improved health outcomes, according to a study posted online today by JAMA. The study is being released early to coincide with its presentation at the American Heart Association Scientific Session. It will be published in the December 6 print issue of JAMA.
Proteins called H2AX act as “first aid” to DNA, among other roles. For the first time, scientists using the world’s most powerful light microscope (the only one of its kind in the Americas) have seen how H2AX is distributed in the cell nucleus: in clusters, directing the first aid/repair after DNA injuries to the region where it is really needed.
Stroke survivors less than 65 years old report having more difficulty accessing physicians and affording medications than stroke survivors older than 65, according to an article posted online today that will appear in the January 2007 print issue of Archives of Neurology, one of the JAMA/Archives journals.
The rate of colorectal cancer screening appears to be increasing among Veterans Affairs patients, although use of colonoscopy is less common than other screening procedures, according to a report in the Nov. 13 issue of Archives of Internal Medicine, one of the JAMA/Archives journals. A second report in the same journal shows that younger veterans with other illnesses and reduced life expectancies may not necessarily benefit from such screening and may even be harmed, but continue to be screened at high rates.
New research reported in the journal CHEST shows that prescription sleep aids may do little to improve the use of continuous positive airway pressure among patients with obstructive sleep apnea. The study found that patients with OSA who were given prescription sleep aids were no more likely to use their CPAP machines than patients with OSA taking a placebo.
Tiny bits of RNA — a chemical cousin of DNA — play a large role in causing enlargement of the heart, which is a major risk factor for heart failure and sudden death, researchers at UT Southwestern Medical Center have discovered.
People who are depressed have an increased risk of dying from heart failure, and a new study by Duke University Medical Center researchers may help explain why.