A new study highlights the need to develop systems to assess antimalarial drug safety in early pregnancy, as artemisinins have been shown to be toxic to embryos in animal models. An international antimalarial pregnancy exposure registry is proposed to enable targeted pharmacovigilance and timely assessment of risk-benefit profiles.
Researchers found that higher-ranking males produced groans with lower minimum fundamental frequencies and to a lesser extent, with lower formant dispersion. Dominance status was the factor most strongly related to mating success, with higher-ranking males having higher mating success.
Researchers discover complex events initiated by individual spikes in the human cerebral cortex, triggered by specific chandelier cells. The study suggests that humans possess different types of cells contributing to higher cognition.
Researchers characterize grapevine transposons, finding they capture and amplify gene sequences, influencing gene evolution. The study also reveals 'domesticated' transposons with cellular roles, contributing to genetic diversity.
A team of academics argues that academic health centers (AHCs) can lead the development of best practices for establishing a data sharing culture. AHCs are urged to adopt seven recommendations, including recognizing data sharing contributions and educating staff on responsible data sharing.
A comprehensive study of hip and knee replacement surgeries in England found that one in seventy-five patients require revision after three years. The research suggests that different patterns may emerge over a longer follow-up period, emphasizing the need for further research to evaluate surgical procedures and types of implants.
Researchers identified a prion protein characteristic unique to certain natural sheep scrapie cases, which may help study prion diversity and changes during cross-species transmission. The findings distinguish these isolates from bovine BSE cases.
Scientists have created a biophysical methodology to retune functioning regions of the ear to recognize frequencies associated with damaged areas, which could remedy even substantial hearing loss. The method uses modifications that enable remapping of frequencies without losing auditory information.
A team of international scientists warns that current coral reef protection zones are not effective against climate change. They recommend establishing new areas with better protection to prevent coral collapse and conserving marine ecosystems.
Researchers found unusual vocal patterns in BTBR mice, which could be used to model impaired communication in autism. The study suggests that these unique patterns may resemble those seen in some autistic infants and young children.
The journal's editors emphasize the importance of universal access to basic surgical services, citing their cost-effectiveness in reducing child mortality and improving maternal health. The movement to promote surgery as a global public health tool has gained momentum, with potential benefits in addressing infectious diseases like HIV.
A study published in PLOS Biology suggests that sleep is crucial for brain function, allowing the brain to regroup after a hard day of learning. The research proposes that sleep enables the brain to consolidate new memories and 'forget' random impressions, making it essential for continued learning.
A new study by University of Tennessee professor Francisco Ubeda suggests that the amount of care a father gives to his child may cause a shift in the syndrome's symptoms, reversing them. The research implies that social structure and biparental care can shape disease symptoms over human evolution.
Researchers found that bluetongue virus can survive the winter by surviving in the eggs of Culicoides midges, or by overwintering in livestock barns. The virus can also spread through transplacental infections from an infected pregnant animal to its fetus.
A new study published in PLOS Medicine found that tobacco control programs in California reduced personal health care expenditures by $86 billion between 1989 and 2004. The program's cost savings grew over time, reaching 7.3% in 2003-2004, and represented a significant return on investment for the state.
A study by Sheffield University and the University of St. Andrews found that relearning can trigger forgotten information when forgetting is induced by directional decay in synaptic connectivity. This suggests that evolution may have selected physiological mechanisms involving forgetting using a form of synaptic drift.
Researchers found that owl faeces and prey remains can serve as visual signals for intraspecific communication, including territorial and parent-offspring contexts. This novel behavior may aid owls in signaling their reproductive status to potential intruders.
A study found that shipwrecks on coral reefs harbor unwanted species like Rhodactis howesii, which can overtake healthy coral and decrease diversity. Removing man-made debris could prevent further losses in species and habitat.
A UK-led team of scientists has developed a more accurate way of identifying aggressive forms of bowel cancer, which should lead to better treatment and survival rates. The study found that patients with a stem cell marker protein called Lamin A present in their tissue are more likely to have an aggressive form of the disease.
Researchers at the University of Glasgow found that cultural differences influence how people look at faces, with Westerners focusing on specific features like eyes and mouths, while Easterners focus on the nose or centre of the face. This study provides insight into why non-verbal communication between people from different cultures c...
A linear mathematical model allows for estimation of minimal detectable tumor sizes, based on blood tumor biomarker assays. The model relates secreted blood biomarker levels to tumor sizes, providing a tool for cancer screening and monitoring.
A study published in PLOS Biology found that magpies exhibit self-recognition in a mirror test, recognizing their own image as themselves. This discovery indicates that non-mammalian species can engage in self-recognition behavior, challenging the assumption that advanced cognition is exclusive to mammals.
Researchers discovered a new mechanism for cell fate determination in yeast cells, showing how the daughter cell becomes dramatically different from its mother. The Ace2 gene regulator is trapped in the daughter nucleus, turning on genes that make it distinct.
Researchers found that chondroitin sulfate proteoglycan helps repair injured spinal cord tissue, promoting motor function recovery during the acute phase. The study also highlights its role in microglia/macrophage activation, a crucial step in the healing process.
Despite being an important part of TB control efforts, children are underrepresented in TB drug development. Key findings include: Children make up 20% of new TB cases and are at high risk of severe TB forms. The lack of child involvement is due to barriers such as diagnostic challenges, side effect concerns, and regulatory requirements.
A recent study published in PLOS Neglected Tropical Diseases found Brazilian children are five times more likely to develop eye lesions by four years old, with vision compromised in 87% of cases. The researchers believe infection with virulent genotypes prevalent in Brazil contribute to the severity of clinical symptoms.
Recent H9N2 viruses can transmit to ferrets in direct contact, but aerosol transmission is not observed. A single amino acid residue at the receptor-binding site plays a major role in transmission. The study suggests that establishment and prevalence of H9N2 viruses in poultry pose a significant threat to humans.
A new study suggests that Burmese pythons will not be able to find suitable habitats outside of South Florida, despite initial predictions by the USGS. The researchers used advanced climate models to predict the potential distribution of the snakes in the US and found that they are limited to the vicinity of the Everglades.
The western Amazon, home to the most biodiverse rainforest left on Earth, is at risk from oil and gas projects. Over 180 blocks cover nearly 688,000 km2, overlapping with protected areas and indigenous territories. The study highlights the need for regional Strategic Environmental Assessments and indigenous rights protection.
A novel data analysis method has been developed that extracts representative spatial filters for each individual subject, reducing the need for calibration before every session. This approach may pave the way for practical daily use of brain-computer interfacing technology for both patients and healthy users.
Researchers investigated physiological methods used by well-trained runners to control exercise intensity and avoid exhaustion. They found that heart rate response scales with race distance, indicating athletes actively manage their body's increasing strain.
Researchers found that the same brain regions are activated when observing facial expressions of disgust in others and experiencing it oneself. This study suggests that reading a book can elicit emotional responses comparable to those experienced while watching a movie, thanks to the shared brain activity patterns.
A systematic review of antiepileptic drugs found that children with drug-resistant partial epilepsy have a greater response to placebo treatments compared to adults. This suggests that clinical trials in children require careful design and reporting to provide valid results.
Researchers from Royal Free and University College London Medical School used Mendelian randomization to examine the association between CRP levels and type 2 diabetes risk. They found that elevated CRP levels in the blood are unlikely to cause diabetes, challenging previous research suggesting a potential causal link.
A new study suggests that the social context of a person's facial expression and individual attachment style can affect how our brains interpret its social meaning. The study found that happy faces activated reward centers in the brain, but this response was weaker in participants with an avoidant attachment style.
Researchers found that adult songbirds exposed to a novel environment undergo a significant change in their auditory brain's tuning width, becoming more selective. This process is similar to humans adapting to a new language, with increased sensitivity to fine acoustic details. In contrast, isolation caused the tuning to coarsen.
Médecins Sans Frontières (MSF) enrolled over 12,000 patients in 43 studies across 18 countries, providing extensive evidence on malaria medication efficacy. These studies played a crucial role in shaping treatment policies in conflict-affected regions.
A study found that a rectal tenofovir gel can prevent the transmission of an AIDS-like virus in macaques. The gel was applied before exposure and protected most animals from infection. However, more research is needed to confirm its effectiveness in humans.
A new study has identified a key molecular sensor in worms that allows them to respond to ultraviolet light, which may provide insights into nerve cell communication and learning. The discovery could potentially lead to new treatments for conditions such as depression and sleep disorders.
A new study has shed light on the inner mechanics of the thymus, revealing its role in negative selection, which prevents immune cells from attacking the body's own tissues. Researchers genetically engineered mice to contain an antigen only in the cortex, finding that T cells programmed to attack it were absent from mature mice.
Researchers created a new prognostic model for traumatic brain injury using patient characteristics from the IMPACT database, including age, motor component of Glasgow coma score, and pupillary reactivity. The model also includes haemoglobin and glucose measurement, providing a more comprehensive prediction of outcomes.
Researchers found that rats exposed to novelty during infancy had better social competitiveness and reduced stress responses compared to those with no novel experiences. Consistency of maternal care was also linked to offspring's adaptability. These findings suggest early life experience plays a crucial role in shaping human development.
Sabertoothed and modern cats evolved distinct adaptations to killing, with the former having radically different skulls due to selective pressures for a precise shearing action. Modern cats' skull shape varies depending on size, but their anatomy shows a gradual transition from smallest to largest species.
A study found that fish with temperature-dependent sex determination are more vulnerable to climate change, with increasing temperatures leading to a shift towards males. Small changes in temperature can significantly alter the sex ratio, compromising the viability of some fish populations.
Jackson Laboratory scientists have developed a simple and cost-effective method to freeze mouse sperm, achieving high fertilization rates with mouse eggs. This breakthrough will significantly reduce the cost of developing new mouse models for human diseases.
The world's great animal migrations are experiencing steep declines and disappearances due to human activities such as dam construction, overfishing, and habitat destruction. The loss of these migrations not only disrupts the natural balance but also has significant effects on the ecology of surrounding landscapes.
A team of biologists has identified a collection of novel proteins transferred from male to female fruit flies during mating, which influence female behavior and favor male success. The study reveals that these proteins are rapidly evolving and potentially under intense selection pressure.
Researchers found that SOD1 protein stability and aggregation propensity are key factors in predicting patient survival. Mutations that increase stickiness and decrease stability of the protein correlate with reduced survival times.
A study found that sensitive HIV testing can detect low-level drug-resistant strains in patients who have not received anti-HIV drugs. In some cases, these resistant strains were present before treatment began and contributed to treatment failure. Further research is needed to confirm these findings.
A study found that babies born to mothers living in the Seveso area after a 1976 chemical accident are six times more likely to have altered thyroid function. Maternal exposure to dioxins has been shown to damage the function of their babies' thyroid gland.