gene test

It's not a perfect test. Yet researchers report a key step for the first gene test aimed at reducing unnecessary angiograms - expensive and somewhat risky procedures that hundreds of thousands of Americans have each year to check for clogged arteries.

Most of these exams, done in hospital cardiac catheterization labs, turn out negative....

A genetic test can identify 77% of people predisposed to live to 100 and beyond.

Some 15% of people of European descent have more than a 50% chance of exceptional longevity.

NHS patients are to be offered personalised cancer treatment under a pilot scheme to carry out genetic tests on individuals' tumours.

Scientists develop a gene test which predicts how well chemotherapy will work in individual breast cancer patients.

A new gene test may help predict which colon cancer patients are at higher or lower risk of having their cancer return after surgery, doctors report, but whether it is useful enough to justify its likely high price remains to be seen....

ATLANTA (AP) -- People taking warfarin, a leading blood thinner to prevent clots that cause heart attacks and strokes, soon may have a better way to get the tricky dose right.

A new formula that includes gene testing proved much better at setting the ideal dose than what doctors do now: Give a standard amount and adjust it by trial and error.

The formula was tested in a large international study, which found the usual approach gets it wrong about half the time....

SAN ANTONIO -- A new test to predict an ordinary woman's odds of getting breast cancer works better than a method doctors have relied on for decades, researchers reported Friday.