A genome-wide association study found genetic variants associated with increased risk of low testosterone concentrations in men. The study, which pooled data from 14,429 Caucasian men, identified specific genes, including SHBG and X chromosome variants, linked to lower testosterone levels.
Researchers observed dense groups of Wels catfish in the Rhone River, estimating a total biomass of up to 1132 kilograms. These aggregations could excrete large amounts of phosphorous and nitrogen, creating potential biogeochemical hotspots.
Researchers analyzed 300,000 NBA free-throws, finding strong support for the hot hand phenomenon, which suggests a streak of positive outcomes is likely to continue. This study sheds new light on an old question, supporting fans' view that the phenomenon exists and opens doors for further physiological and psychological investigations.
Researchers have discovered genetically engineered canola populations growing outside of established cultivation regions along roadsides across North Dakota. These 'escaped' plants accounted for 45% of total roadside plants sampled and persisted from year to year, raising questions about oversight and monitoring protocols.
Estimating the severity of a flu epidemic can be done in real-time using serological data coupled with clinical surveillance data. This approach provides valuable insights for pandemic preparedness and response, making it useful not only for influenza pandemics but also for other emerging infectious diseases.
Researchers studied lungfish to understand pelvic fin muscle development and its connection to the emergence of hind legs. The team found a transitional mechanism in bony fish that paved the way for tetrapod physiology, highlighting the importance of understanding evolutionary pathways in land adaptation.
Home-based supervised oral HIV self-testing has been shown to be feasible in high-HIV-prevalence settings in urban Africa. The study found strong community readiness for this approach alongside other HIV counseling and testing strategies.
A new study finds that health and forensic DNA databases are growing to mirror racial disparities in arrest practices and incarceration rates. Underrepresented groups, such as African Americans and Latinos, face more severe disparities in forensic DNA databases compared to health DNA databases.
A research team at the Hubrecht Institute demonstrates a mechanism by which left–right asymmetry in vertebrates is established and maintained. The study reveals a genetic midline 'barrier' that induces and maintains Nodal and BMP proteins to pattern the embryo along the left–right axis.
Researchers are using smartphones to conduct large-scale language studies, collecting data from over 4,157 subjects in seven languages. This innovative approach allows for faster data collection and opens up possibilities for future research on human cognition.
Researchers have developed a new method to evaluate spatially and biologically distinct groups of marine turtles, identifying 11 out of 58 worldwide turtle regions as most at risk. The study highlights the need for targeted conservation efforts for these threatened populations.
Asperger individuals display uneven profiles of performance in common intelligence test batteries, but scores are much higher on a reasoning-based test called Raven's Progressive Matrices. This suggests a common information processing mechanism for both Asperger and autistic individuals.
A new analysis of non-steroidal anti-inflammatory drugs (NSAIDs) found that naproxen and low-dose ibuprofen have a lower risk of cardiovascular events. In contrast, diclofenac increases the risk, even at non-prescription doses.
Key findings highlight the need for health policy and systems research to improve access and coverage of existing interventions. Epidemiological research is also essential to address knowledge gaps in childhood pneumonia.
The region's high rates of parasitic infection are nearly 20 years after the collapse of the Soviet Union, particularly among economically disadvantaged groups. Soil-transmitted helminth infections have been linked to developmental delays and decreased economic productivity in countries like Uzbekistan.
A study by an international consortium has identified five new genes associated with the risk of coronary artery disease (CAD). The research, published in PLOS Genetics, found that these genetic variants contribute to the development of CAD and heart attacks, particularly in South Asian populations.
Researchers used a new algorithm to predict human proteins that the HIV virus requires to replicate, offering potential new targets for controlling its spread. The study found many previously undiscovered proteins with high predictive value as prognostic markers.
In a remarkable discovery, ground beetle larvae have evolved to lure and consume amphibians, reversing the typical predator-prey relationship. The larvae use unique movements and sit-and-wait strategies to draw in prey, before attaching themselves using double-hooked mouthparts.
A new study published in PLOS ONE challenges the idea that women's voices contain cues for men to detect ovulation. The researchers found that the variation in women's vocal quality throughout the menstrual cycle does not provide reliable information about the timing of ovulation, making it a poor mating clue.
Researchers found elevated levels of radioactivity in San Francisco Bay area rainwater after the Fukushima Dai-ichi power plant accident, but at non-health-risking concentrations. The study collected samples from March 16th to March 26th and detected above-normal radioactivity starting on March 18th.
Researchers and experts agree on priority research questions focused on problem analysis, interventions, and context-specific support. The study aims to strengthen mental health support in humanitarian settings through tangible benefits.
A recurrent gene fusion between ESRRA and C11orf20 was found in about 15% of serous ovarian cancer cases, suggesting a potential marker for early detection. The discovery sheds light on how these deadly tumors develop and spread.
A study in worms has yielded clues about how nerves grow by identifying the molecular mechanisms that prompt dendrite development. The QBI team discovered that a ligand and receptor work together to coax certain neurons to extend dendrites towards their targets.
A Finnish study published in PLoS Medicine found that people living alone are more vulnerable to the adverse effects of increased alcohol availability, leading to a substantially increased risk of alcohol-related mortality. The study analyzed data from over 80% of Finland's population between 2000 and 2007 and discovered a greater incr...
A cost-effectiveness study found that early antiretroviral treatment (ART) is cost-effective in resource-poor settings like Haiti. The study supports the implementation of the new WHO guidelines for early ART initiation, which recommend treatment for all HIV-infected patients with CD4 cell counts below 350 cells/mm3.
A new species of raptor dinosaur, Talos sampsoni, has been discovered in southern Utah, providing insights into the function of its enlarged talon and revealing a previously unknown level of feathered, bird-like characteristics. The study also sheds light on the behavior of theropod dinosaurs during the Late Cretaceous period.
A study introduces ethnicity-specific reference genome sequences to analyze whole-genome sequencing data, improving disease risk assessment. The approach was demonstrated in a four-person family and showed increased accuracy in detecting rare variants and reducing errors.
A study published in PLoS Medicine found that genotyping patients with hepatitis C can improve doctors' ability to predict treatment response. The study identified an interaction between IL28B, HLA-C, and KIR genes as a mechanism for viral control, potentially leading to improved therapies.
Egyptian fruit bats exhibit sophisticated spatial orientation using echolocation, adjusting their 'field-of-view' by altering sonar beam width and intensity in response to environmental complexity. This adaptability enables them to track targets and avoid collisions in dense environments.
A new microscope technology allows scientists to see individual elements in immune cells, including protein filaments and granules that destroy infected cells. The study reveals that these granules pass through openings in the cell skeleton to reach their targets.
A study found that gene expression changes in some patients following major trauma can lead to severe inflammatory complications. Researchers used DNA microarrays to analyze blood samples and identified genes associated with long-term outcomes. This discovery could help scientists develop new drug targets to prevent such complications.
Researchers from KEMRI-Wellcome Trust Programme in Kenya modified informed consent processes to consider local social, cultural, and economic contexts. Locally adapted communication processes strengthened informed consent, particularly in international research.
A new evidence-based tool has been developed to evaluate doctoral programs in African universities, incorporating perspectives from students, staff, and policy makers. The tool aims to strengthen capacity and justify external funding inputs, benefiting universities across different countries.
A new combination therapy has been developed to target fungal infections in implanted medical devices, effectively clearing biofilm-based infections. The therapy inhibits a protein called Hsp90, rendering antifungals effective against biofilms, offering hope for patients with device-related infections.
A multi-country analysis shows that ITN ownership reduces child malaria parasites by 20% and child deaths by 23%. The findings support the widespread provision of ITNs as a key intervention in controlling malaria.
A recent study argues that existing financial protection measures are insufficient and advocates for new indicators to identify those unable to afford healthcare. The findings highlight the need for improved measurement of financial protection in health systems to better support vulnerable populations.
Women who drink one drink a day during midlife may have better overall health when older than those who don't drink or consume more alcohol. Regular moderate consumption is linked to lower risk of chronic diseases and cognitive impairment.
A new article in PLOS Medicine suggests that improvements in advocacy, national planning, resource allocation, long-term investments, and health system strengthening are needed to tackle non-communicable diseases. The authors argue that lessons learned from the global AIDS response can inform a successful NCD response.
Researchers found that a species of cavefish, Phreatichthys andruzzii, has an unusual circadian clock that ticks at an extremely long period, unaffected by eye loss. The study suggests that the fish's clocks can be regulated by feeding behaviour, but not light exposure.
Researchers at the University of Glasgow have created a safer oral version of the sleeping sickness drug melarsoprol, increasing its solubility and releasing it slowly in the gut. The new treatment retained its ability to kill the infection and cured mice infected with the parasite after a seven-day daily dosing schedule.
The study combines genetic data with mathematical modelling to provide insights into cell differentiation. The findings demonstrate the utility of a systems biology approach, which could have implications for understanding and treating diseases such as cancers caused by abnormal cell function.
A study using mobile phone positioning data tracks population movements after disasters, providing more accurate estimates than ad hoc methods. The method can be used for close to real-time monitoring of population movements during outbreaks, leading to better allocation of relief supplies.
A study found that rural areas have a higher risk of dengue fever due to higher mosquito populations, while urban areas contribute significantly despite fewer cases. Improving water supply and vector control can increase the efficiency of control efforts.
Recent evidence suggests that medical ghostwriting persists despite previous exposés, affecting journals like PLoS Medicine. Experts call for fundamental changes to address the issue, including increased legal liability and revised authorship guidelines.
The article emphasizes the need for a structured approach to health policy and systems research (HPSR), citing its current challenges. To address this, the authors propose establishing dedicated homes for HPSR in universities and independent research institutes.
New data reveals that neonatal mortality rates have declined globally but increased in eight countries, including five in Africa, from 1990 to 2009. Over 4% of all babies born in India die during the first month of life.
Researchers discovered that measles virus can target tumors through the PVRL4 receptor, a marker found on lung, breast, colon, and ovarian cancer cells. This approach could be used to fight various types of cancer, with ongoing experiments testing its effectiveness in mouse tumor models.
Researchers used text mining to analyze electronic health records and identified co-occurrence of diseases and clustered patients into groups with similar clinical features. The study also mapped disease correlations to the genetic level, potentially revealing a genetic cause behind some diseases.
A study reveals how British American Tobacco used its corporate social responsibility programme to shape UK public health policy, highlighting the need for greater transparency in interactions between governments and industry. The authors argue that this approach has implications for other industrial sectors, such as alcohol and food.
The article highlights the importance of social sciences in Health Policy and Systems Research (HPSR), emphasizing approaches to generalization, policy learning, and enhanced research quality. Social science perspectives are vital for acknowledging the complex nature of health policies and systems.