Research reveals how hypoxia leads to inhibition of miR-34a, a key tumor suppressor, promoting metastasis and EMT. The findings suggest that targeting this process with drugs could be a therapeutic approach for treating metastasizing colon tumors.
Researchers at LMU Munich develop mechanically stable pentacene nanosheets for flexible electronics and biosensors. The new method eliminates the need for solvents and allows for low contact resistance, enabling applications in vital data acquisition, displays, and solar cells
A German multisite study investigated the role of post-traumatic stress in cancer-related cognitive impairment. The findings suggest that psychological factors may contribute more importantly to cancer-related cognitive impairment than neurotoxic effects of treatment.
A team of biophysicists used experiment and mathematical theory to study the changing composition of a mixed bacterial population. They found that in some cases, a strain with a toxin can outcompete another strain, but this depends on various factors such as the environment and initial inoculum size. The results suggest a complex inter...
A new fossil cichlid discovered in East Africa provides insights into the evolutionary history of the cichlid family. The analysis of its unique 'mosaic-like' set of characters supports the idea that interspecies hybridization played a prominent role in their evolution.
A systematic analysis of chemokine interactions reveals two structural types with different functional effects on inflammation. The study identifies potential therapeutic targets using specially designed peptides that selectively inhibit atherosclerosis and acute inflammation.
Researchers found that ant-plant symbioses break down at least 12 times over the past few million years, as plants adjust their host selection criteria based on altitude and potential tenants. Higher-altitude species tend to form domatia with larger access holes.
A new theoretical model suggests that proteins diffuse most of the way and 'hop on the bus' to reach their destinations faster. The study found that steric hindrance between motor proteins reduces active transport rates, leading to traffic congestion and slower progress.
Researchers discovered that spotted-wing flies use senses of smell, touch, and taste to choose ideal nursery sites. They prefer firm texture and volatile chemicals emitted by freshly ripened fruits.
Dendritic cells, which help activate and suppress immune responses, play a key role in maintaining the balance between self and non-self in the gut. The discovery of a signaling molecule, CD40, reveals how this balance can be disrupted, leading to severe colitis, but also highlights the importance of regulatory T-cells in maintaining i...
A recent study found that automated journalism lacks the context and complexity of traditional reporting, citing issues with programming news angles in advance. However, journalists believe robo-journalism can reduce costs and increase specificity in some reporting areas.
Researchers compared six methods for single-cell RNA sequencing and found that some commercial kits are ten times more expensive than homemade versions. The choice of method depends on the experiment's conditions and demands. This study is valuable for further developing the technology, particularly in the Human Cell Atlas project.
Researchers found that hairpin structures can effectively replicate DNA, leading to faster evolution. This discovery challenges traditional views of DNA replication and provides insight into the origins of life on Earth.
Scientists have identified microRNAs as crucial regulators of apoptosis in C. elegans embryogenesis, preserving progenitor cells and ensuring proper nervous system development. By genetically blocking specific microRNAs, researchers observed significant increases in egl-1 mRNA levels, leading to premature cell death.
A study by Neil Thurman found that readers spend significantly more time reading print editions than digital versions, with 40 minutes spent on print versus less than a minute on digital. This suggests that print media remains a crucial source of attention for newspapers.
A longitudinal study by LMU Munich researchers found that positive emotions and success in math learning mutually reinforce each other. Students who enjoyed and took pride in math had even better achievement than those with high intelligence.
Scientists have described a new species of fish-scale geckos (Geckolepis megalepis) that possess the largest scales of any gecko. These unique geckos can lose their skin at the slightest touch, making them challenging to study.
Scientists have experimentally realized a stable exotic quantum state that resists mixing due to disorder, defying predictions of conventional quantum mechanics. The discovery could have implications for the development of robust quantum computers.
Genomic analyses reveal that Mongolian yaks are derived from cattle, with a genetic heritage of about 1.5% of their genome coming from domesticated cattle. The study also found that yak breeders selected for polledness in the early stages of domestication, leading to the loss of horns and exploiting this trait worldwide.
Scientists from Ludwig-Maximilians-Universitaet Munich have successfully measured the lifetime of an excited state in an unstable element, paving the way for the development of nuclear clocks. The research team has characterized the energy transition in the 229Th nucleus and achieved a breakthrough in this field.
Researchers have identified an endogenous peptide that reduces cholesterol levels in mice, inhibiting the development of atherosclerosis. The protein, human neutrophil peptide 1 (HNP1), binds to LDL in the bloodstream and induces rapid uptake by the liver, reducing hypercholesterolemia.
Novel ultrathin semiconductors exhibit strong interaction with light, making them suitable for opto-electronics applications. The researchers' new polarimetric method enables efficient detection of valley polarization in these materials.
Researchers have characterized the structure of a macromolecular complex involved in mRNA transport, showing how RNAs are recognized and bound by binding proteins in the nucleus. The complex allows for the specific recognition and transport of mRNAs from the cell nucleus to the cytoplasm.
Researchers have developed a catalyst that flexibly molds reaction product handedness, ensuring correct enantiomeric form. The system's self-amplifying action enhances stereoselectivity with each cycle, holding promise for biologically active compounds and new insights into biological systems.
Researchers at Ludwig-Maximilians-Universität München discovered a mechanism to recycle bacterial ribosomes stalled on messenger RNAs lacking termination codons. This process, involving the protein ArfA, has emerged as a promising target for developing new antibiotics.
A study by LMU researchers demonstrates that ants have cultivated their plant partners at least three million years ago, long before humans. The interaction is vital for the survival of both partners, with ants providing nutrients to epiphytes in exchange for nesting sites.
Physicists have recorded an internal atomic event with unprecedented precision, measuring the duration of photoionization for the first time with zeptosecond accuracy. The study provides a reliable basis for future experiments and reconciles theory and experiment in complex systems like helium.
Researchers have discovered that distinct conformations of a protein essential for spliceosome assembly on mRNA precursors significantly influence splicing efficiency. The findings suggest that different structural configurations adopted by the large subunit of U2AF regulate splicing operations, affecting protein synthesis rates and fi...
Researchers successfully integrated transplanted embryonic nerve cells into the visual cortex of adult mice, demonstrating functional connectivity and restoration of network function. This breakthrough holds promise for treating acquired brain diseases, including neurodegenerative illnesses and stroke-induced damage.
Early epigenetic modifications play a crucial role in determining the fate of neurons during embryogenesis. Deregulation of Uhrf1, a key epigenetic gene, leads to activation of endogenous retroviruses, causing accumulation of retroviral proteins and cell death.
Search engine algorithms can be modified to better target users at risk of suicide, according to a study by LMU researchers. The findings suggest that algorithms should be regularly updated to take into account objective factors that increase the risk of suicide, making a greater contribution to prevention.
Researchers create novel nanotool that allows for simultaneous analysis of large numbers of molecules, enabling testing of protein and gene functionality under deformation. The new method uses self-assembled power gauges to apply precise forces on biomolecules.
A new study reveals that some HIV-infected children control the virus by activating low levels of immune activation and producing potent antibodies. This differs from adults who develop AIDS despite effective antiretroviral therapy.
Three-year-olds quickly grasp social norms and infer them from observation, even without direct instruction. They expect others to follow these norms, protesting when they are broken.
The TW Hydrae system shows a prominent gap that is unlikely to be caused by an actively accreting protoplanet. Instead, researchers attribute the feature to photoevaporation, which heats gas and allows it to fly away from the disk. This process may disperse the disk before planets can form.
A breakthrough study published in Nature reveals that the fine detail of DNA shape plays a crucial role in distinguishing X chromosome binding sites from other chromosomes. The researchers identified a specific sequence signature called PionX, which is selectively recognized by the dosage compensation complex, enabling gene regulation.
A team of paleontologists has assigned a new genus to the largest predatory dinosaur ever found in Germany, dating back to the Middle Jurassic. The fossil, named Wiehenvenator albati, is estimated to be around 8-10 meters long and weighs over 2 tons.
A novel imaging technique allows visualization and monitoring of structural alterations in neuronal networks after traumatic brain damage, stroke, or aging processes. This enables detection and characterization of diseases like dementia, epilepsy, and metabolic disorders.
Researchers at LMU Munich developed a new theoretical model explaining how regulatory proteins are transported to their sites of action in microtubules. The model suggests that energy is required to capture freely diffusing particles and proposes a mechanism for efficient transport by diffusion.
Researchers from LMU Munich analyzed data from the Sloan Digital Sky Survey to calculate the dynamics of cosmic voids. Their findings demonstrate that the analysis of voids is a suitable approach to investigating gravity in empty regions and determining the total density of matter in the universe.
Researchers at LMU Munich have sequenced mitochondrial DNA from museum specimens of rare deer species, refining the evolutionary history of cervids. The study identifies novel relationships among species, including confirmation of a second muntjac species in Borneo and polyphyletic genera in New World deer.
A study by Markus Paulus found that preschoolers (3-5 years) expect reciprocity in social interactions, even before it's explicitly taught. This strategic behavior is rooted in the understanding of relative amounts of social capital they build with others.
Scientists create synthetic diacylglycerols that can be controlled by UV light, revealing new insights into cellular signaling networks. The findings enable precise regulation of metabolic processes such as insulin secretion and nerve signal transmission.
Researchers create ultrafast electron imaging instrument to map electromagnetic fields oscillating at billions of cycles per second. The new technology enables precise detection and measurement of tiny, rapidly oscillating electromagnetic fields.
A new study of fossil fishes from Middle Triassic sediments on Lake Lugano finds that biological communities recovered within a few million years after the great mass extinction event. The research identifies two new species of ancient fish with distinct ecological niches, suggesting that ecosystems were already recovering.
Researchers have elucidated the mechanism by which the sensor protein KdpD adjusts potassium uptake in bacteria, employing a dual strategy to monitor both internal and external potassium concentrations. This allows for precise control of intracellular potassium levels, vital for bacterial survival.
Researchers found that circadian rhythms influence the influx of immune cells into damaged tissue, worsening heart attack outcomes. The study showed that neutrophil recruitment is correlated with CXCR2 expression and peaking in early morning hours, leading to increased inflammation and scar formation.
Researchers at LMU Munich develop a new method to probe the geometry of electronic states in solids using ultracold atoms in an optical lattice. The technique, based on Wilson lines, reveals both local and global properties of the band structure, including topological aspects.
Physicists observe nanoscale light-matter phenomenon lasting only attoseconds, studying collective electron motions and near fields in gold nanoneedles. The development enables precise characterization of near-field vibrations, paving the way for complex studies of light-matter interactions in metals.
Scientists have developed a novel method to study the dynamics of electrons in solids when exposed to ultrafast light pulses. This breakthrough enables the precise optimization of energy transfer between light and matter, paving the way for faster electronic signal processing and potentially accelerating data processing to its limits.