A new species of bird, the Himalayan Forest Thrush, has been discovered in north-eastern India and adjacent parts of China by an international team of scientists. Genetic analysis reveals three distinct species within a previously thought to be single species, Plain-backed Thrush.
A novel PET/CT imaging method has been shown to accurately measure HER2 expression in metastatic breast cancer, potentially leading to more optimal individualized treatments. This non-invasive technique may one day substitute traditional tissue sampling.
Researchers uncover the genetic mechanism behind the Dun pattern, a unique coat color variant that provides camouflage in wild horses. The study reveals a single gene, TBX3, determines Dun versus non-Dun color, with implications for understanding horse domestication and skin/hair development.
Researchers from Uppsala University implemented a Turing test to assess how good their mathematical models were at reproducing collective motion of real fish schools. Despite matching statistical properties, experts and public players could differentiate between simulated and real schools, highlighting areas for improvement.
A new study by Uppsala University researchers found that posttraumatic stress disorder is caused by an imbalance between two neurochemical signalling systems: serotonin and substance P. The severity of symptoms depends on the degree of imbalance, not just one system.
Researchers have discovered a 'supergene' underlying genetic differences in sexual behaviour among male ruffs, with Satellite and Faeder males carrying a chromosomal inversion that has been maintained for about 4 million years. The study found an association between the 'supergene', testosterone levels, and altered behaviour.
A new study reveals that many lakes worldwide release large amounts of CO2 into the atmosphere, with northern hemisphere lakes expected to increase emissions due to climate change. The study found that most lake CO2 originates from surrounding land, highlighting the impact of land use changes on greenhouse gas emissions.
A Swedish study found that children growing up with dogs have a lower risk of developing asthma, with a 15% reduction compared to those without dogs. The study analyzed over one million children and controlled for confounding factors.
Ants build complex transportation networks by minimizing costs while maintaining efficiency and robustness. Researchers at Uppsala University applied this principle to human-made systems, finding that connecting new suburbs to the closest city area can ensure relatively cheap but efficient power networks. By adjusting the frequency of ...
Researchers analyzed Yellow River sediment to reconstruct global climate and topography history. They found that the Loess Plateau acts as a sink for Yellow River material eroded from the Tibetan plateau, contradicting previous expectations.
Researchers at Uppsala University have developed an anti-aging treatment for smart windows by rejuvenating electrochromic layers, reducing their lifespan. The new method could also be applied to electric batteries, making them more profitable.
Researchers discovered genetic alterations in healthy breast cells associated with an increased risk of non-familial breast cancer. These findings can be used for future improvements in diagnostics to identify women at high risk before the tumor forms.
Researchers discovered that genetic background affects mutations in lymphoma tumors across different dog breeds. The study identifies breed-specific genes and molecular subtypes, offering a unique model for understanding how genetics influence cancer development.
Researchers from Uppsala University and IVPP in Beijing combined palaeontological and genomic data to determine that enamel originated in the skin and colonized the teeth much later. The study found that ganoine, an enamel-like tissue, is expressed in the skin of certain fish species, suggesting a possible connection between the two.
A new smart lab robot system optimizes cancer treatment by finding the best combination of drugs to kill cancer cells without harming healthy ones. The robot is part of a broader effort to improve cancer treatment research and find new drug compounds for resistant cells.
Researchers at Uppsala University have successfully broken the strong magnetic coupling between spin moments in an atom, enabling ultrafast manipulation of magnetic materials. This breakthrough opens up new opportunities for data storage and computing applications.
A team of researchers has discovered that early Iberian farmers are the closest ancestors to modern-day Basques, contradicting previous hypotheses. The study also reveals that farming was brought to Iberia by groups migrating to northern and central Europe, leading to admixture with local hunter-gatherer populations.
A new study by Uppsala University researchers has found that evolution is more complex than the traditional Tree of Life model suggests. Incomplete lineage sorting, a phenomenon where genetic variation passes from one species to another, has been documented and quantified for the first time in evolutionary research.
Researchers identified three novel candidate genes, KIRREL3 and SLIT1, involved in immune cell development, and SERPINA9 expressed exclusively at the germinal center where B-cells produce IgA. A new method for analyzing complex traits was also developed to facilitate robust genome-wide association studies (GWAS) in dogs.
Researchers have discovered a potential new treatment for type 1 diabetes using the anti-inflammatory cytokine interleukin-35, which can reverse or cure the disease in mice models. The study also found that IL-35 concentrations are lower in T1D patients than healthy individuals.
Researchers found that sleep loss for one night altered the regulation and activity of clock genes in human tissues, particularly in adipose tissue and skeletal muscle. This could suggest a link between disrupted circadian rhythms and impaired glucose tolerance and metabolic pathologies.
Researchers from Uppsala University found that losing half a night of sleep can make memories less accessible during times of cognitive stress. The study also showed that stress can impair memory recall by around 10 percent, especially when subjects had only slept for half a night.
Research at Uppsala University reveals individuals with social phobia produce too much serotonin, leading to increased anxiety in social situations. The study used PET cameras and tracers to measure serotonin transmission by the brain's fear centre, finding a direct link between excessive serotonin production and social anxiety.
A new technique for detecting proteins in tissues has been developed at Uppsala University, enabling robust and inexpensive analysis. The method uses antibodies linked to DNA strands and emits light when attached, making it suitable for point-of-care devices and clinical applications.
Researchers at Uppsala University have made significant progress in using stem cells to treat spinal cord injuries. Human stem cells transplanted into injured mice restored damaged sensory nerve connections, enabling long-term recovery of sensory functions.
Researchers at Uppsala University have studied the dynamics of active swarms using computer simulations and experiments on unicellular algae. They found that the collective response was only possible when the field was varying slowly, resulting in a more persistent motion.
Researchers at Uppsala University mapped the genetic structure and evolution of the W chromosome in birds, finding that it does not contain genes leading to female development. The W chromosome instead serves as a buffer for females with one copy of the X chromosome, allowing certain genes to work.
A four-year follow-up study of 263 children found that delayed cord clamping (DCC) was associated with improved fine motor skills, particularly in boys. The study did not find a significant impact on IQ or overall development.
A new model systematically evaluates malaria treatment programs in multiple countries, finding no country shows reductions in malaria treatment associated with testing as hypothesized. Contextual factors such as access to care and stockouts largely explain the variation in program experiences.
A new study by Uppsala University researchers reveals a missing link in the evolution of complex life, identifying a new group of microorganisms called Lokiarchaeota. This discovery provides insights into how complex cell types emerged from simple microbes, challenging long-standing scientific questions.
The honeybee queen uses polyandry to mate with multiple drones and recombination to maintain genetic variation. High recombination rates help the colony adapt to environmental changes.
Researchers from Uppsala University analyzed the whole genome of 40 bird species to estimate their abundance at various points in time. The study found that many species exhibit cyclical swings in numbers, often coinciding with ice ages, but human influence may push declines beyond a tipping point to extinction.
Researchers have discovered a new biomarker, ASRGL1, that can identify women with uterine cancer at high risk of recurrence. The study found that patients with low levels of ASRGL1 had a higher risk of recurrence and died from the disease.
Gene duplication events in early vertebrate evolution led to the development of novel functions in vertebrate eyes, including distinct opsins and transducin proteins. These specializations enable vertebrates to adapt to their environments, such as detecting ultraviolet light and responding to varying light intensities.
Developing countries like India, Egypt, and Ukraine are found near the border of a development trap due to institutional and value-based political traps. The researchers predict that investing in education can help these countries transition to higher democracy and socio-economic wellbeing.
Researchers at Uppsala University have discovered a novel origin of the lymphatic system, challenging the long-held dogma that it forms via sprouting from veins. The new findings may lead to innovative treatments for conditions such as lymphedema and tissue trauma.
Researchers at Uppsala University discovered that Moringa seed protein can be used to separate different materials from water, a process important in mining industries. The study found that the optimal amount of seeds needed varies depending on the material, allowing for more efficient separation.
A team of scientists has sequenced 120 birds to study the evolutionary history of Darwin's finches and identified a gene associated with beak shape variation. The research reveals that hybridization between species played a critical role in shaping the genetic diversity of these iconic birds.
Researchers used microscopic fossils to date sedimentary layers and shed light on the origin of the Canary Islands. The study supports the mantle plume model, suggesting oceanic volcanoes formed from an anomalously hot plume of molten rock from the Earth's mantle.
Researchers analyzed endogenous retroviruses to understand long-term interactions between viruses and hosts, finding that retroviruses are widespread across vertebrates and can switch among distantly related hosts.
Researchers found an association between smoking and loss of the Y chromosome in blood cells, which may explain why men have a shorter life expectancy. Heavy smokers showed more frequent loss of the Y chromosome than moderate smokers.
Researchers have created a new method to quickly identify bacteria causing infections and determine antibiotic resistance, which could lead to timely treatment and reduced antibiotic use. The innovative approach enables rapid identification of bacterial species and resistance patterns in under four hours.
Researchers successfully imaged carboxysome particles, a key component in photosynthetic bacteria's carbon fixation process, using an X-ray laser method. The technique enables single-particle imaging of objects with varying size and shape, shedding light on the structure and dynamics of life's smallest units.
Researchers from Uppsala University developed a therapeutic vaccine that selectively targets tumor vessels, reducing tumor burden and suppressing metastases in a mouse model of metastatic breast cancer. The vaccine induced an 80% reduction in metastasis, providing a cost-efficient alternative to monoclonal antibody-based therapies.
Researchers discovered a new correlation between specific molecular features and CLL subgroups with different prognosis. The study identified subsets of patients with distinct clinical courses, allowing for better adjustment of therapeutic strategies and follow-up.
Elderly men with self-reported sleep disturbances are at a higher risk of developing Alzheimer's disease. A 40-year follow-up period revealed that late-life sleep disturbances significantly increase the risk. Regular good sleep habits may support brain health and reduce the risk of Alzheimer's disease.
Researchers discuss the limitations of brain simulations, citing the need to account for individual experience and social context. They also raise concerns about the potential creation of artificial consciousness and the technical challenges of simulating complex biological systems.
Research at Uppsala University finds that plasmids with genes for resistance can be enriched by very low levels of antibiotics and heavy metals, suggesting environmental contamination contributes to the problem. This highlights the need to reduce antibiotic use and minimize exposure to heavy metals.
Researchers propose a new method for measuring magnetic properties of materials at atomic resolution, utilizing the phase symmetry of an electron beam. This technique enhances the magnetic signal, enabling the detection of magnetism with unprecedented precision.
Researchers at Uppsala University have developed a new battery concept using renewable biomaterials from alfalfa and pine resin, which can be recycled with low energy input and non-hazardous chemicals. The battery proved capable of delivering up to 99% of the energy output from a spent battery.