Preemies’ gut bacteria may depend more on gestational age than environment

The population of bacteria in premature infants’ guts may depend more on the babies’ biological makeup and gestational age at birth than on environmental factors, researchers at Washington University School of Medicine in St. Louis have found. They discovered that bacterial communities assemble in a choreographed progression, with the pace of that assembly slowest in infants born most prematurely.

Mardis, Wilson named to endowed professorships

Elaine R. Mardis, PhD, and Richard K. Wilson, PhD, both renowned for discoveries in the field of genomics, have been named to endowed professorships. They were installed by Chancellor Mark S. Wrighton (far left), and Larry J. Shapiro, MD, executive vice chancellor for medical affairs and dean of the School of Medicine (far right).

New clue to aggressive brain tumors

Scientists at the School of Medicine have identified a biological marker that may help predict overall survival of people with deadly brain tumors. The marker is made by noncancerous cells known as monocytes (pictured in brown).

New models of drug-resistant breast cancer hint at better treatments

Breast cancer that spreads to other organs is extremely difficult to treat. Doctors can buy patients time, but a cure remains elusive. Now, researchers at the School of Medicine have shown that human breast tumors transplanted into mice are excellent models of metastatic cancer and could be valuable tools in the search for better treatments. Shown are human breast cancer cells (red) growing amid mouse cells (green).

Wilson named world’s ‘Hottest Researcher’

Richard Wilson, PhD, director of The Genome Institute at Washington University School of Medicine, was named the world’s most-cited researcher by Thomson Reuters’ ScienceWatch. The list of most influential researchers also included Elaine Mardis, PhD, Li Ding, PhD, and Robert Fulton, all of The Genome Institute.
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