Researchers discovered that the Nf1 gene serves two major purposes: preventing tumor growth and regulating the body's rest-activity cycle. In its absence, the body is unable to keep time, highlighting a crucial role of Nf1 in maintaining circadian rhythm.
A study found that invasive management improves quality of life and reduces major adverse cardiac events in elderly patients with CAD. Patients aged 75 or older with chronic angina benefit from revascularisation procedures.
Researchers observed high numbers of corn rootworm beetles near corn edges in prairie remnants, with 10 times more at the edge than at a distance. The beetles damage sunflowers, potentially reducing seed set and affecting pollinator visitation.
A recent study found that prescribed burns in eastern U.S. deciduous forests can decline ground-nesting bird species by over 80% due to reduced leaf litter and shrubs. However, two bird species increased in response to the burns, suggesting that fire may improve their foraging habitat.
A new study found that patients with periodontal disease have higher levels of C-reactive protein, a marker of inflammation associated with cardiovascular risks. The study suggests a possible link between oral bacteria and heart disease, emphasizing the importance of maintaining good gum health.
A new combination drug treatment has shown to be more effective in treating chronic hepatitis C than the current standard. The treatment, peginterferon alfa-2b plus ribavirin, achieved higher sustained viral response rates compared to interferon alfa-2b plus ribavirin, especially in patients with genotype 1 infection.
Amita Sehgal and colleagues report a new link between the neurofibromatosis-1 gene and the body's circadian clock, revealing a new facet of the circadian control system. The findings show that the Nf1 protein regulates the cellular switch MAP kinase.
A study by USGS researchers found that large habitat patches are crucial for bighorn sheep persistence and growth rates. Small patches with high-quality habitat can still warrant restoration efforts.
A new report on primitive whales found in Pakistan provides well-preserved ankle bones, allowing scientists to change their conclusions on closest relatives. The findings unify the scientific perspective on whale evolution, supporting a closer relationship between cetaceans and artiodactyls.
A new study reveals that salmon populations are mutually dependent on riparian vegetation, which provides shade and large woody debris that support successful spawning. The researchers found a significant increase in nitrogen levels in plants near spawning sites, suggesting a two-way relationship between salmon and their ecosystems.
Professor Ian Hacking argues that classifications like 'football hooligan' and 'sex addict' can shape people's identities, while also highlighting the potential negative consequences of such labeling. His research emphasizes the importance of understanding how these classifications impact individuals and society.
Researchers have used Empirical Mode Decomposition to analyze patterns in tropical storm occurrences along the East Coast. The technique reveals four distinct cycles, or modes, that determine the number of hurricanes making landfall each year.
Researchers estimate that eastern North American reserves must be at least 1,000 square miles in size to prevent loss of species. This is significantly smaller than the current sizes of most reserves, which are often not enough to safeguard biodiversity.
The ADCS has expanded its clinical trials to test new therapies for Alzheimer's disease, including a cholesterol-lowering statin drug, an antioxidant, and a high-dose vitamin regimen. The trials aim to slow the progression of cognitive decline in people with AD.
The Alzheimer’s Disease Cooperative Study (ADCS) has received a five-year grant of $54 million to conduct clinical trials and research on new approaches to treating and preventing Alzheimer’s disease. Researchers aim to delay the onset of the disease and have already made significant progress in the past decade.
A study found that the California gnatcatcher, a threatened songbird, does not effectively serve as an umbrella species for coastal sage scrub conservation. The birds occur in nearly all patches, but insect diversity and quality are more closely linked to patch size than bird presence.
Researchers at Purdue University have successfully linked two tiny structures called quantum dots to create a semiconductor-based quantum computer. The device uses quantum bits that exist in both on and off states simultaneously, enabling faster processing of information than conventional computers.
Researchers develop a microsurgical technique to manipulate signaling proteins in developing mouse brains, revealing a previously unknown molecular mechanism involved in forming the cerebral cortex. The study shows that this protein directs the development of cortical areas, including vision, touch, and memory.
A team of researchers has identified a key enzyme involved in the consolidation of long-term memories, revealing new insights into the molecular processes underlying learning and memory. The study found that eliminating this enzyme led to impaired memory retention, highlighting its critical role in memory consolidation.
A randomised controlled trial found that patient-centred self-management training reduced relapse times and hospital visits, while maintaining health-related quality-of-life scores. This alternative approach to traditional outpatient care may improve health-service provision and reduce costs for chronic diseases.
A recent study published in Psychiatric Services found that expenditures on antidepressants, antipsychotics, and anxiolytics increased significantly between 1992 and 1998. The researchers highlighted the need for drug benefit coverage to ensure accessibility and affordability for individuals with low incomes.
A review article in The Lancet highlights the negative effects of shift work on health and productivity. Desynchronisation of circadian rhythms can lead to poor sleep, gastrointestinal disorders, and cardiovascular disease, emphasizing the need for employers to create effective working environments.
A new study by Cardillo and Bromham found that medium-sized mammals were not at greater risk of extinction, contrary to the widely accepted theory. Instead, small mammal species are the least vulnerable to extinction due to high population densities and reproductive rates.
Researchers found that inhaling tobramycin twice daily for 12 months effectively eradicated Pseudomonas aeruginosa from the airways of 14 cystic fibrosis patients, with nine remaining free from infection at two-year follow-up. The treatment regimen cures chronic lung infections in patients started soon after colonisation.