Updated: 31 min 8 sec ago
For the first time, a study has identified genomic differences between the breast tumors of African American and white women, differences that could contribute to the recognized differences in recurrence rate and survival.
Florida teachers who enter teaching through a path requiring no coursework in education have the greatest effect on student achievement, substantially larger than that of traditionally prepared teachers, study finds.
Researchers leverage randomness in a new computational approach to keep cells healthy. Using a newly-developed computational algorithm, they showed that this randomness within and among cells, called "noise," can be manipulated to control the networks that govern the workings of living cells -- promoting cellular health and potentially alleviating diseases such as cancer.
Scientists have identified the precise nerve cells that allow the brain to make a split-second change of course, like jamming on the brakes.
Adolescents who live in rural areas and small towns and cities are more likely to abuse prescription painkillers than adolescents who live in large urban areas, according to sociologists.
A recently developed drug was significantly better at detecting recurring prostate cancer in early stages, researchers report. The American Cancer Society reports that prostate cancer is the second leading cause of cancer death in American men, behind lung cancer, with about 220,800 new cases estimated in 2015.
Scientists wonder why some people get so sick and even die after being infected by the foodborne pathogen E. coli O157:H7, while others experience much milder symptoms and recover relatively quickly. Now researchers believe they have discovered an explanation.
Scientists have now answered a 40-year-old question about Arctic ice thickness by treating the ice floes of the frozen seas like colliding molecules in a fluid or gas.
Every woman successfully treated for breast cancer lives with the knowledge that it could come back. New research may lead to a simple blood test to determine the risk of such recurrence, or the cancer invading other organs such as the lungs, bone or brain. Such a test would have profound implications for improving the future treatment of women with all types of breast cancer.
Myc is a cancer-causing gene responsible for disrupting the normal 24-hour internal rhythm and metabolic pathways in cancer cells. Researchers have found that MYC protein may affect circadian rhythm and metabolism by promiscuously binding to promoter regions in key genes for maintaining these daily cycles.
Scientists have discovered how genetic cancer mutations systematically attack the networks controlling human cells, knowledge critical for the future development of personalized precision cancer treatments.
Every biology class learns about mitosis, which involves copying each of a cell's DNA-containing chromosomes, then separating them into two newly created cells. The act of chromosome separation is facilitated by a structure called the spindle, a framework of interconnected fibrous microtubules. The spindle also contains other densely packed materials, referred to as the spindle matrix, believed to be important for cell division. New work zeroes in on one particular spindle matrix protein, called BuGZ.
A protein embedded in the surface of mitochondria -- the energy-producing batteries of living cells -- opens the door to cell death, causing cells to experience severe power failures, according to researchers. The new study suggests that blocking the door with a small molecule inhibitor could be key to the treatment of cardiovascular diseases where extensive mitochondrial dysfunction and cell death hinder tissue recovery.
If you go back far enough, all people share a common ancestry. But some populations are more closely related than others based on events in the past that brought them together. Now, researchers have shown that it's possible to use DNA evidence as a means to reconstruct and date those significant past events. The findings suggest that evidence in our genomes can help to recover lost bits of history.
Scientists have now measured and compared just how aging affects rats' liver and brain cells. In a new study, they were able to tease out general aging processes from those that are specific to each of these organs.
Remember the scene in the classic movie 'Alien,' when that creepiest of creatures bursts out of John Hurt's belly as he writhes in pain? Well, according to a new study, great apes are pretty good at remembering and anticipating memorable events they've seen on-screen too -- even when they've seen the event only once.
Sponges build their skeletons in a completely different way than other animals do, researchers have found. In fact, the building process looks a lot like the construction of human-made buildings, minus the architectural plans.
Obese African-American teens, particularly girls, may have immune system changes that can lead to high blood pressure, diabetes, and cardiovascular disease in adulthood. Taking steps to control weight early in life may reduce inflammation and its negative effects on the cardiovascular system. Blood tests are a possible new preventive tactic to identify teens who are at high risk of developing cardiovascular disease.
Some people with high blood pressure also have early signs of brain damage, a new imaging technique has found. The damage is linked to difficulties in certain cognitive skills, decision-making, and the ability to regulate emotions. Researchers suggest physicians should start to consider potential brain damage as they treat patients with high blood pressure.
Parkinson’s patients often become sedentary because of motor symptoms such as gait, balance problems or falls. However, new research finds that non-exercise physical activity, more than occasional trips to the gym, is linked to less severe motor symptoms.