A new study reveals that prenatal exposure to higher levels of testosterone in pregnant smokers may predispose their daughters to develop a smoking habit as they age. Researchers analyzed data from over 240 pairs of mothers and daughters, finding no correlation between prenatal nicotine levels and later smoking behavior.
A team of biophysicists introduces a new method in atomic force microscopy that maps not only topographic features but also the specifics of biochemistry on biological molecules. The technique, which attaches antibodies to microscope tips, allows for precise location of proteins and has extensive applications in biotechnology.
Two prominent entomologists warn that recent studies on genetically engineered crops have distorted the debate, potentially having profound consequences for science and public policy. The experts question the methodology used in these studies, particularly one claiming Bt corn kills monarch butterfly larvae in laboratory tests.
A new test developed by USC scientists and colleagues can accurately detect hidden breast cancer cells in lymph nodes, improving the detection of metastases. This breakthrough enables customized treatments tailored to individual patients' characteristics, such as tumor size and hormone receptor status.
Researchers at University of Florida report a 92% survival rate for newborns with diaphragmatic hernia using a new treatment strategy that reduces overventilation and delays corrective surgery, significantly improving lung function and development.
Researchers at the University of North Carolina will use a novel vaccine method to develop a safe and effective HIV vaccine. Early tests on monkeys show promise, with vaccinated animals showing significant cellular and humoral immunity and reduced virus load.
Researchers at the University of Michigan Comprehensive Cancer Center have identified two genes that may control the development of inflammatory breast cancer. The discovery, published in Clinical Cancer Research, could lead to more effective forms of cancer treatment, particularly for newly diagnosed women.
Researchers from the Howard Hughes Medical Institute have pinpointed how light resets the biological clock of fruit flies. By analyzing biochemical consequences of light pulses, they found that light triggers cell breakdown of a key protein called timeless, which is essential for synchronizing the biological to day-night cycle.
Astronomers have found evidence of a prompt high-energy afterglow component from a gamma-ray burst, suggesting multiple energy emission processes and mechanisms. This discovery supports the idea that different activities cause what appears to be a chaotic explosion.
A new study by researchers at the University of Southern California found that children with asthma are significantly more affected by severe air pollution than other children. Living in communities with high levels of pollutants is associated with higher rates of bronchitis and phlegm among children with a doctor diagnosis of asthma.