A team of researchers at Stanford University used a computer simulation to trace the origins of genetic mutations in human populations. By modeling population growth, migration, and mutation rates, they were able to estimate the location and time of origin for these genetic changes.
A study by Penn State found that users rate ease of use as crucial for using web-based road weather information systems, with map scale and resolution being key graphical elements. The study suggests that improving usability could increase public adoption of these systems.
In a breakthrough study, UCSD researchers discovered that Cdk5 phosphorylates and inactivates the protein doublecortin, leading to defective neuronal migration and lissencephaly. The findings provide new insights into the molecular mechanisms underlying this severe brain disorder.
A new vaccine for genital herpes is being tested in a clinical trial, aiming to protect women against this sexually transmitted infection. The vaccine has passed preliminary safety and effectiveness testing and is now enrolling approximately 7,550 healthy female volunteers between 18-30 years old.
A study found that individuals with panic disorder have reduced expression of the 5-HT1A receptor protein, which regulates serotonin synthesis and release. This reduction is associated with decreased function in brain areas critical for anxiety regulation.
The lab recognized for FRAMES, a software system for understanding industrial impact on people and environment; a testing chamber that identifies hard-to-measure chemical emissions; and a test bed for developing fish-friendly designs for roadway culverts.
A study published in Pediatrics found that training physicians to use computer resources significantly reduces the time spent seeking answers and increases their usage. The study also showed that resources should be tailored to address pediatricians' specific clinical questions.
A new vaccine formulation uses a bacterial protein called listeriolysin O to boost the immune response against viral diseases. The vaccine has shown promise in preliminary animal studies, with a 100% survival rate in mice infected with a lethal viral strain.
Researchers discovered that apolipoprotein E and clusterin proteins can delay amyloid plaque formation in mice with Alzheimer's-like brain damage. The findings imply that these proteins cooperate to suppress Abeta protein levels and deposition, paving the way for future drug or gene therapy treatments.
Researchers found that female rats were more sensitive to stress-induced memory errors when estrogen levels were high. Eliminating estrogen from their system reduced this sensitivity, suggesting a key role for estrogen in the vulnerability of women to stress-related mental illnesses.
A new imaging agent, Pittsburgh Compound B, provides a unique view of amyloid plaques in the living human brain. This breakthrough discovery may contribute to understanding how Alzheimer's disease begins and grows, as well as develop effective treatments.
Researchers are testing a gene therapy approach called tumor immunization, which involves delivering the IL12 gene to cancer cells to trigger an immune response. The method has shown promise in laboratory and animal studies, with up to 20% of animals experiencing complete tumor eradication.
Researchers found damaged T cells arose from a particular cell lineage in tumor environments, leading to immune dysfunction. Targeting novel properties can prevent or reverse the defects, providing new insights into the relationship between tumors and defective T cells.
A study of over 12,600 Florida high school dropouts found that those who scored higher on the GED math test had better earnings in low-level jobs. The research suggests that literacy and math skills have a direct impact on earning potential, even for individuals who do not complete secondary school.
A mathematical model developed by NASA helped researchers identify spatial-temporal waves of dengue cases emanating from Bangkok, Thailand. The study suggests that disease surveillance and control systems in urban areas may help prevent future outbreaks in surrounding regions.