The Arctic ice cap has melted to a point that exceeds the 2005 level — previously the second lowest on record — and could surpass the record this year, scientists at the U.S. National Snow and Ice Data Center have said. Continue reading
Biomarkers, changes in a protein that indicate the progression of a disease, hold promise for different fields of medicine. NewsHour health correspondent Susan Dentzer reports on the use of biomarkers in the early detection of cancer. Continue reading
A new tool for medical research, the Allen Brain Atlas, provides a three-dimensional catalog of all the genes active in the brain and has revealed clues to diseases such as Alzheimer’s, Parkinson’s and Lou Gehrig’s, as well as conditions such as autism. Continue reading
A new study says early screening could save the lives of thousands of smokers. Despite the finding, some in the medical community question both the cost and accuracy of the test. Health correspondent Susan Dentzer explains the findings. Continue reading
Medical researchers have created the first genetic map of colon and breast cancer, revealing that nearly 200 mutated genes that were previously unknown help tumors grow and spread. Meanwhile, breast cancer rates in the United States have started to fall. Continue reading
Scientists have announced a new method of extracting stem cells from embryos, but it has done little to quell ethical concerns about the research. Two experts debate the ramifications of the new procedure. Continue reading
An estimated 4.5 million Americans have Alzheimer’s, and the number is expected to triple within 10 years. Families of patients are making efforts to push the private and public sectors toward finding better treatments.
President Bush’s first veto of a bill that would have expanded federal research on embryonic stem cells could affect the state of the research. The NewsHour’s health correspondent explains. Continue reading