Christine Cave's new method reveals that it was not uncommon for people to live to old age in traditional societies. The study found that the most common age of death was around 70, similar across cultures.
A new study published in Journal of Bone and Mineral Research found that more than 80% of bone loss in post-menopausal women is due to cortical bone, not trabecular. Cortical bone loss is likely to contribute to the occurrence of fractures in these women.
A new noninvasive approach to treat tinnitus has shown promising results in a double-blind study, alleviating symptoms in 20% of participants. The therapy involves alternating audio and somatosensory stimulation, delivered through headphones and mild pulses on the neck or cheek.
Tropical Storm Ava formed off northeastern Madagascar on Jan. 3, with NASA-NOAA's Suomi NPP satellite analyzing the storm in infrared light. The satellite provided data showing coldest cloud tops and strongest storms wrapped around the center of circulation.
Researchers discovered that peacock spiders' intense rainbow iridescence emerges from specialized abdominal scales with airfoil-like microscopic 3D contour and nanoscale diffraction grating structures. This finding may inspire new color technology for applications such as space missions and wearable chemical detection systems.
A study of NYC hospitals found that black and Hispanic preterm infants are more likely to be born at hospitals with higher morbidity-mortality rates, contributing to racial disparities in neonatal deaths and severe complications. These differences explained 39.9% of the black-white disparity and 29.5% of the Hispanic-white disparity in...
Restasis, approved by FDA in 2003, shows no direct improvement in symptoms but is marketed as treatment for chronic dry eye disease. The drug's extensive marketing campaign created a perceived need, driving $8.8 billion in US sales between 2009 and 2015.
A new removable implant has been developed to control type 1 diabetes, with hundreds of thousands of islet cells protected by a thin hydrogel coating and attached to a polymer thread. This therapy could replace daily insulin injections and offer a more effective management solution for the disease.
A new study reveals that an invasive Australian tree species, Pittosporum undulatum, is posing a significant threat to the global biodiversity hotspot in Jamaica's Blue Mountains. The species has already outpaced native trees, reducing their regeneration and threatening rare and endangered species.
The male rat brain changes how it stores information based on the safety and danger of its environment, according to new research. Emotionally charged information, such as danger, is processed by the amygdala, while harmless information is consolidated in other regions like the perirhinal cortex.
Researchers at Boston University School of Medicine discovered a possible biomarker for Huntington's disease, which may help evaluate treatment effectiveness and potentially delay disease onset. The study found altered levels of microRNAs in individuals carrying the HD gene mutation twenty years before symptoms appear.
Researchers have shed new light on the diversity paradox by developing a stochastic model of bacteria-virus interactions. Their findings suggest that the coevolutionary arms race between bacteria and viruses leads to diverse populations and boom-bust cycles, preventing any single species from dominating the ecosystem.
Researchers at Rothamsted Research have developed a simple mathematical model to predict the behavior of midge swarms, which can help protect crops from airborne pests. The model uses basic physics principles to simulate the complex flight dynamics of midges and predicts their dispersal patterns.
Researchers have discovered that experimental diabetes drugs can make cancer cells more vulnerable to traditional chemotherapy agents. The combination of carboplatin and one of the experimental compounds, SR1664, sensitized lung tumor cells and triple-negative breast cancer cells in laboratory models, leading to reduced tumor growth.
Researchers discovered that zebrafish exhibit significant spatial memory impairment after a blow to the head, with slower reaction times to familiar environments. Genetic analysis identified key genes involved in brain cell proliferation and migration, offering new insights into potential human recovery strategies.
Researchers at UT Southwestern Medical Center have developed a new Magnetic Resonance Imaging (MRI) technology that can accurately diagnose the nature and aggressiveness of kidney cancer without the need for invasive biopsies. This breakthrough technology, known as multiparametric MRI, uses multiple types of images to evaluate the chem...
Dr. Yu Zhu's team developed a new polymer binding material and process to improve battery cyclability and storage density, extending the time between charges and overall battery life.
A study published in Nature Ecology and Evolution reveals that G+C composition is generally strongly favored across different species, regardless of genome size or location. The researchers used large-scale DNA sequencing data to demonstrate a correlation between G+C content and the expectations based on neutral mutations.
A new study suggests that climate change could force winemakers to switch from traditional grape varieties to more drought-tolerant and heat-resistant ones. Researchers at Harvard University are exploring the potential of lesser-known grape varieties to adapt to changing weather patterns.
Boris Striepen has received a $1.8-million grant from the Bill & Melinda Gates Foundation to support drug development efforts against cryptosporidiosis, a disease that sickens approximately 750,000 people annually in the US. The project aims to identify and validate therapeutic targets to guide medicinal chemistry.
A collaborative team from Washington University in St. Louis conducted field studies in Raipur, India, to quantify the true scope of particulate emissions from cookstoves. They found that emissions were higher than previously estimated, with some cases exceeding twice the levels detected in laboratory experiments.
A new Northwestern Medicine study finds that blacks have the same risk of developing diabetes as whites when all biological factors are considered over time. Obesity is identified as the primary cause of early onset diabetes in blacks, with black women developing diabetes at triple the rate of white women.
Pericytes, a type of cell on brain blood vessels, grow to cover empty space left by neighboring cells. This brain plasticity may help fight age-related vascular disorders like Alzheimer's disease and stroke.
The study reveals that archaea use the same mechanism to regulate cell size as bacteria and budding yeast, with some variability in precision. The researchers found that Halobacterium salinarum controls its size by adding a constant volume between two events in the cell cycle.
An international team of researchers has combined experiments with quantum theory to explore methane dissociation reactions in minute detail. They found that dissociation reactions are at least two orders of magnitude more efficient on steps than on terraces, providing new insights for optimizing catalysts.
The study found that the Pacific midshipman's swimbladder muscles release and pump calcium ions at a much slower rate than those of other fish, allowing it to sustain an hour-long mating call. This low level of calcium release reduces metabolic demands and enables the muscle fibers to contract with sufficient force.
Current Organocatalysis journal to be indexed in Scopus, expanding its reach. The journal covers various aspects of organocatalysis, including drug discovery and green chemistry.
A study found that high doses of vitamin D significantly reduced arterial stiffness in a population with vitamin deficiency. The results suggest that vitamin D supplementation can be an effective treatment for improving cardiovascular health.
A study found that low-fiber diets alter the gut microbiota's behavior, leading to increased bacterial penetrability of the inner colonic mucus layer. Fiber supplements from bifidobacteria or inulin helped restore protective effects on the mucus layer.
Researchers have created double-pane solar windows that generate electricity with greater efficiency, using two types of engineered quantum dots. The new technology utilizes a window architecture with two layers of low-cost materials, allowing for better sunlight collection and reduced energy losses.
Researchers discovered that the stress gene NR4A1 adjusts energy output and synapse number of prefrontal cortex neurons in response to stress. Chronic stress may interfere with normal brain circuit function through this gene's impact on cellular connectivity, but altering its expression protects PFC cells from synaptic loss.
A recent study published in the Journal of the American Medical Association calls for improved care for sepsis survivors, focusing on strategies to minimize physical disability and cognitive impairment. The recommended approach includes high-quality early sepsis care, post-discharge assessment and treatment, and screening for pre-exist...
A study found that watching a brief educational video increased participants' reported willingness to donate their faces for transplantation. The video provided basic information on patients eligible for face transplants, the donor-recipient matching process, and the challenges of recovery.
The Space Debris Sensor (SDS) will track orbital debris between .05mm and 3mm in size for two to three years, providing near-real-time impact detection capabilities. The sensor will help researchers map the entire orbital debris population and plan future sensors to mitigate damage from debris.
Research found that frequent alcohol consumption is associated with increased risk of cardiovascular death among those in lower socioeconomic positions. Moderate drinkers had a lower risk than infrequent drinkers. The study's findings highlight the need to consider socioeconomic factors when making recommendations on alcohol consumption.
Researchers at Kyushu University have developed a novel electrolytic flow cell that can produce glycolic acid (GC) from oxalic acid, offering a promising solution for energy storage. The device uses a polymer membrane and porous TiO2 catalyst to achieve high efficiency and capacity.
Biomedical engineers have discovered a way to enhance the effectiveness and safety of sonogenetics, emerging techniques that use sound waves to control neuron behavior. By attaching microscopic beads to receptors on cell surfaces, they can produce cell-stretching effects with much less risk of cellular injury.
A UCR study reveals how intensive pesticide use is driving mosquito evolution at the genetic level, boosting resistance to insecticides. The findings highlight the need for new strategies to overcome pesticide-resistant mosquitoes and control malaria.
Researchers have developed an organ-on-a-chip device that accurately models atherosclerosis, allowing them to study inflammatory responses in cells lining blood vessels. The device can also be used to diagnose early immune responses in patients, providing a more accurate assessment of blood health.
Researchers at NIST have demonstrated a quantum method for detecting digitally modulated magnetic signals that can travel through building materials and water. The technology has the potential to improve communication range and accuracy in environments where GPS signals are weak or unreliable.
A recent study found that the frequency of autism spectrum disorder among US children and adolescents remained stable between 2014-2016. The study analyzed data from a nationally representative annual survey and included 30,502 participants. No apparent increase in ASD prevalence was detected during this three-year period.
Researchers used cryo-electron microscopy to visualize the structure of the TRPV5 protein, which serves as a passageway for calcium across kidney cell membranes. The study reveals how inhibitor molecules attach to and close the channel, leaving calcium stranded in the urine where it can form kidney stones.
Research by the American Psychological Association found that self-oriented perfectionism increased by 10%, socially prescribed perfectionism by 33% and other-oriented perfectionism by 16% between 1989 and 2016. This rise in perfectionism is linked to social media pressures, meritocracy, and unrealistic educational expectations.
PharmaMar has signed a commercialization and distribution license agreement with Megapharm Ltd. for the marine-derived anticancer drug Aplidin² (plitidepsin) in Israel and the Palestinian Authority. The agreement allows for registration and distribution of Aplidn², providing access to a novel therapy for multiple myeloma patients.
Indy University researchers created lab-grown skin tissue with hair follicles using mouse stem cells. The skin model closely resembles natural hair growth, making it useful for testing drugs and understanding hair development. The team discovered that the two layers of skin cells must grow together to form hair follicles.
Researchers propose a standardized measurement method for perovskite solar cell stability, addressing the lack of comparable data across laboratories and companies. The study investigates environmental factors affecting perovskite degradation, revealing specific behaviors that distort experimental results.
A nationwide study found that ADHD medication use was associated with a lower risk of developing sexually transmitted infections. The study, which tracked data from over 17,000 individuals with ADHD, found that those who used ADHD medications had a 30-41% lower risk of STIs compared to non-ADHD controls.
Researchers have developed a new way of organizing nanostructures that enhances Raman spectroscopy, allowing for the detection of molecules at low concentrations. The technique uses silver nanoparticles on nanowires to boost sensitivity, enabling the detection of compounds in nanomolar or even picomolar concentrations.
Researchers found that macrophages, which reside in healthy breast tissue, help early breast cancer cells leave the breast for other parts of the body. The study identified how macrophages and early cancer cells form a 'microenvironment of early dissemination' that can be targeted to prevent metastasis.
Researchers have identified a weakness in the lethal fungus Pseudogymnoascus destructans that causes white-nose syndrome. The fungus is highly sensitive to UV light, making it susceptible to novel treatments that could save bat populations.
A study published in Plastic and Reconstructive Surgery found that migraine surgery can lead to significant improvements in functional disability and ability to cope with pain. Patients who underwent surgery showed a large percent improvement in Pain Self Efficacy Questionnaire scores, indicating high levels of recovery from disability.
Researchers at the University of Cambridge have developed a new brain mapping technique that highlights the relationship between brain connectivity and IQ. The study found a significant link between the density of connections in higher-order brain regions and individual intelligence.
A new cholesterol calculation method has been shown to be more accurate than the standard method in nonfasting individuals. The method, developed by Johns Hopkins researchers, uses a chart with 180 different factors to calculate LDL cholesterol levels and individualize assessments.
Research led by Jonathan Pruitt finds that the population majority determines whether influential individuals can emerge and lead a society, not just charismatic leaders. The study uses African social spiders to show that shy, generic spiders are key to creating advantageous social orders.
Researchers found that primary cilia on cells of the retinal pigment epithelium are crucial for the survival of photoreceptors. The discovery has advanced efforts to create stem cell-derived RPE cells for transplantation into patients with geographic atrophy, a leading cause of blindness in the US.
Researchers found that racial and ethnic disparities in live donor kidney transplantation have persisted over the past two decades, with Black and Hispanic patients less likely to receive a transplant than white patients. The study's findings highlight the need to revisit existing strategies aimed at reducing these disparities.
Researchers at Ohio State University have developed a process to transform shale gas into products like methanol and gasoline while consuming carbon dioxide. The technology, known as chemical looping, uses metal oxide particles to burn fossil fuels without oxygen in the air.
Researchers in Japan propose updated diagnostic criteria, revised patient management and treatment guidelines, and new algorithms for thyroid storm. The most common cause of death is multiple organ failure, highlighting the need for further studies on TS outcomes and prognosis.
A large-scale international randomized trial showed that weaning to an extensively hydrolyzed casein formula during infancy did not reduce the incidence of type 1 diabetes. The study, TRIGR Study, followed infants for at least 10 years and found no evidence to revise current dietary recommendations.
Researchers at Tel Aviv University discovered an inverse correlation between a known oncogene and tumor suppressant, leading to extended survival rates in pancreatic cancer patients. A novel nanoparticle delivery system selectively targets cancer cells, rendering them dormant or eradicating the tumor altogether.