A new report by Johns Hopkins Medicine highlights the inadequate tuberculosis control programs in developing countries, particularly in sub-Saharan Africa where HIV infection rates are high. The report recommends improved screening, treatment, and integration of TB and HIV care to reduce transmission.
A study by Northwestern University and the Mayo Clinic found that postmenopausal hormone replacement therapy increases the risk for specific types of breast cancer with favorable prognoses, particularly invasive ductal or lobular carcinoma. The risk is higher among women who used hormone replacement therapy for five or fewer years.
Researchers found a new mechanism explaining how Alzheimer's disease damages the brain by producing hydrogen peroxide from oxygen, a toxic agent that can cause brain damage. The discovery provides a potential target for new drugs to treat Alzheimer's, which affects four million Americans.
Researchers at CU-Boulder are part of an international team experimenting with sub-atomic particles to explain how the universe came into existence. They aim to find out why there is more matter than antimatter in the universe.
Researchers successfully transplanted neural stem cells into mice with severe tremors caused by demyelinating disorders. The transplanted cells matured into oligodendrocytes, producing myelin and covering nearby nerve fibers, resulting in reduced disease symptoms.
Dr. Colleen Wilson-Hodge, a NASA astrophysicist, has discovered two new X-ray pulsars using the Burst and Transient Source Experiment on NASA's Compton Gamma Ray Observatory. The pulsars are powered by accretion of material from companion stars and have strong gravity that pulls matter toward their surfaces.
Researchers at Lawrence Berkeley National Laboratory have discovered two new superheavy elements, 116 and 118, using an intense beam of high-energy krypton ions. The discovery was made possible by the newly constructed Berkeley Gas-filled Separator, which allows for unprecedented efficiency and background suppression.
A major national study found that quality in child care makes a difference in children's intellectual and social readiness for school. The effects of higher-quality care were strongest among children at greater risk of doing poorly in school.
A Cedars-Sinai Medical Center study has discovered a molecular mechanism behind hormonal responses to stress, involving leukemia inhibitory factor (LIF) and its regulation of the pituitary gland. This finding provides new insights into the body's response to stress and sepsis.