Researchers at UC San Diego have sequenced the complete genome of the EDL933 E. coli strain, a common cause of food poisoning outbreaks in the US. The full genome sequence provides precise locations of jumping genes, potentially aiding in tracking and treating future outbreaks.
Researchers found that increased safety signaling is associated with improved REM sleep consolidation and better management of fear conditioning in individuals with PTSD. This suggests that addressing sleep disturbances before treating daytime symptoms may lead to more beneficial outcomes for exposure-based treatments.
Glioblastomas are resistant to drug therapy due to epigenetic regulation of EGFR signaling, not altered DNA sequences. This finding suggests a new approach to guiding cancer therapy by analyzing the epigenetic signature of glioblastoma cells.
Scientists at UC San Diego's Scripps Institution used GPS technology to track uplift caused by the severe drought, estimating a water deficit of 62 trillion gallons. This has resulted in an average uplift of 4 millimeters across the western US and up to 15 millimeters in California's mountains.
A team of researchers found significant security vulnerabilities in full-body backscatter X-ray scanners used at US airports between 2009 and 2013. They demonstrated how attackers could conceal firearms and explosives using low-tech techniques, showcasing the need for rigorous testing and independent evaluation.
A new mouse model closely resembles human non-alcoholic steatohepatitis (NASH) and demonstrates that interfering with key inflammatory proteins inhibits disease development and cancer progression. The study uses a genetically modified mouse strain to show the effectiveness of anti-inflammatory compounds in preventing NASH.
Researchers at UC San Diego School of Medicine found that aspirin prompts the production of 15-HETE, which converts to lipoxin to reverse inflammation. This discovery may lead to new anti-inflammatory therapies by developing drugs based on lipoxin analogues.
Research suggests that happiness is an attainable goal for some schizophrenia patients, associated with positive psychological and social attributes like resilience and optimism. A study found that 37% of patients reported being happy all or most of the time, regardless of severity, duration, or socioeconomic factors.
Scientists at UC San Diego School of Medicine discovered the Notch signaling pathway's early role in establishing hematopoietic stem cell fate during development. They found JAM proteins serve as co-receptors for Notch signaling, facilitating HSC precursor cells' growth.
Researchers discovered that breast cancer cells exploit a signaling pathway used by normal mammary stem cells during pregnancy to produce faster-growing, more aggressive tumors. This connection may contribute to the increased short-term risk of highly aggressive breast cancers following each pregnancy.
Researchers have developed a new approach to measuring early brain development of infants, resulting in more accurate whole brain growth charts. The study found that premature babies' brains grow faster, but may be smaller at 90 days post-delivery, highlighting the importance of inducing labor.
Research by bioengineers at UC San Diego reveals that the stiffness of the extracellular matrix is a key factor in guiding stem cells towards specific cell types. The study found that varying the stiffness of the hydrogel had no effect on the differentiation process, ruling out protein binding as a crucial factor.
Researchers have identified the mechanism by which Kennedy's disease causes muscle weakness and reduced fertility, impairing autophagy pathway function. The study suggests that targeting the bad androgen receptor protein could prevent the disease and other neurological disorders from progressing.
Researchers at University of California, San Diego School of Medicine and Veteran's Affairs San Diego Healthcare System report that neurons derived from human induced pluripotent stem cells (iPSC) extended tens of thousands of axons across the rats' central nervous system. The study suggests a promising approach for treating spinal cor...
Professor Jian Luo at UC San Diego is developing a new materials design tool called interfacial phase diagrams to create better structural materials for energy generation and storage. This basic research aims to improve the properties of materials, such as molybdenum-based alloys and zirconia-based ceramics.
Researchers have discovered anomalous sulfur signals in Antarctic snow that provide insights into the Earth's atmosphere, past climate patterns, and potential future climate scenarios. The findings reveal a previously overlooked atmospheric chemistry process that should be included in climate models.
Researchers have found a link between tumor suppressor mutations and missing segments of genetic material in squamous cell head and neck cancers. The study suggests that treating tumors with both markers may intensify treatment, while those with only one marker may benefit from de-intensified treatment.
Researchers found that dietary capsaicin triggers a reaction that reduces the risk of colorectal tumors in mice. Chronic activation of the TRPV1 receptor by capsaicin also initiates a negative feedback on EGFR, dampening its activity and reducing unwanted growth.
The study reveals that early neurons make many connections but correct mistakes, while later neurons are highly accurate in their target selection skills. The findings provide insight into normal brain development and have implications for understanding autism and other disorders.
A team of scientists at the University of California, San Diego, has developed synthetic glycopolymers that mimic natural sugars on cell surfaces. These molecules successfully guided embryonic stem cells into neural rosettes, precursors to mature neural cells.
The WIFIRE project is developing a cyberinfrastructure system that integrates dynamic wildfire models, sensor data, and computational techniques to monitor and predict wildfire behavior. This will enable situational awareness, responses, and decision support for local, state, national, and international levels.
Researchers found brief exposure to a commonly used anesthetic reduced dendritic spine numbers and shape in rat brain cells, but this effect was reversible within weeks. The study provides insight into the potential risks of general anesthesia on developing brains and suggests that some cognitive effects may be slowly reversible.
Scientists have designed a new material that could enable superconductivity at temperatures rivaling those seen in cuprates, potentially paving the way for more practical applications. The proposed design features layers of semiconductor compounds separated by insulator spacers, which would create indirect excitons that become superflu...
A team of international researchers discovered a new type of cool burning flame in space that could lead to cleaner and more efficient engines for cars. The discovery was made on the International Space Station using microgravity, which allowed the flames to burn at cooler temperatures without producing pollutants.
A new study from UC San Diego suggests dogs may have a more basic form of jealousy that evolved to protect social bonds from interlopers. Dogs exhibited aggressive behaviors like snapping and pushing when owner showed affection to a stuffed dog, indicating they were motivated to break up the connection.
A study found that parents of obese children frequently misjudge their child's health and prioritize dietary changes over increased physical activity. The researchers suggest that education, income, and race/ethnicity have no bearing on a parent's willingness to make dietary changes.
Researchers have discovered that acute glaucoma is an inflammatory disease caused by high eye pressure, leading to vision loss. The study found that a rapid increase in eye pressure triggers an immune response that damages retinal cells.
A genome-wide analysis reveals that friends are genetically similar to each other, with an average of 1% DNA in common. The study suggests that social relationships can drive evolutionary advantages, such as increased immunity against diseases.
Scripps scientists find evidence of super-fast deep earthquakes that rupture at depths of over 400 km, offering new clues about the forces behind these events. This discovery provides insights into fast-breaking earthquakes near Earth's surface.
Researchers found a 42% reduction in preventable post-operative complications and a 72% reduction in mortality for minimally invasive surgery compared to open repair. The study analyzed 70,946 cases of abdominal aortic aneurysm repair over seven years.
Researchers at Georgia Tech and UC San Diego found that tiny galaxies contributed nearly 30% of UV light during reionization, marking a significant shift from previous focus on larger galaxies. Simulations show that small galaxies' high abundance and lower gas density allowed for more UV light to escape, illuminating the early universe.
Some bees in Brazil use loud signals to deter competitors, a counterintuitive strategy that's successful in warding off rivals. This study reveals how eavesdropping can influence the evolution of animal communication signals.
Biologists at UC San Diego have discovered a new genetic pathway in plants that helps them reduce breathing pores in response to rising CO2 levels, a mechanism that can affect heat stress and drought tolerance. The discovery could provide tools for engineering crops to deal with droughts and high temperatures.
The study found that minimally invasive robotic surgery increased adverse events two-fold between 2003-2009. Surgeons recommend standardized training programs and credentialing standards to reduce risks.
A team of researchers combined 3D technologies with advanced range estimator tools to provide detailed data on wildlife species' range and movements. This project utilized the San Diego Supercomputer Center's resources to create highly detailed data sets and visualizations, enabling faster calculations and improved accuracy.
Researchers have shown that stem cells created using different methods produce differing cells, with nuclear transfer ES cells being more similar to real ES cells. The findings could lead to improved stem cell therapies and ultimately, the development of personalized treatments.
Researchers deciphered structural components of fluorescence brightness in a primitive sea creature, known as lancelets or amphioxus. The study found that changes in stiffness around the chromophore pocket enable the animal to emit different brightness levels.
Researchers identified a new biomarker that predicts glioblastoma response to chemotherapy temozolomide, improving patient outcomes. The biomarker targets MGMT-regulating microRNAs, which suppress the cancer-killing effect of temozolomide.
Researchers discovered a group of marine bacteria that synthesize flame retardant-like chemicals, including a potent endocrine disruptor. The study highlights the pervasiveness of these compounds in the ocean food chain, raising concerns about human health risks.
Researchers at UC San Diego have discovered a specialized system that enables the synthesis of ribosomal proteins, which are crucial for producing life-sustaining proteins. This finding has significant implications for understanding cell growth and development, and may lead to new treatments for diseases such as cancer.
Biologists at UC San Diego found the missing link to protein factory production, revealing a novel regulatory system that produces ribosomal proteins. This discovery provides new insights into controlling cell growth and potentially treating diseases like cancer.
Scientists have found a constant ratio between excitatory and inhibitory neurons that maintains the brain's internal balance. This E/I ratio allows for subtle control over response to stimuli, preventing runaway firing or permanent quiescence.
Researchers have discovered a protein called focal adhesion kinase (FAK) that plays a crucial role in ovarian cancer cell growth. A network of signals generated by osteopontin and FAK controls spheroid growth, making it a potential target for new therapies.
Researchers at the University of California, San Diego School of Medicine found that an almost century-old drug approved for treating sleeping sickness also restores normal cellular signaling in a mouse model of autism, reversing symptoms of the neurological disorder in animals.
A recent survey found that 10 new e-cigarette brands enter the market every month, offering over 7,700 flavors. The study also highlighted a shift in marketing strategies, with newer brands focusing on consumer choice rather than health benefits.
Researchers developed a nanoshell to protect foreign enzymes used in chemotherapy, shielding them from the immune system. The nanoshell acts like a filter in the bloodstream, allowing amino acids to feed cancer cells while trapping enzymes that starve cancer cells.
Researchers discovered that damaged mitochondria in retinal ganglion cells are transferred to adjacent astrocytes, which then degrade them. This process, dubbed transmitophagy, has significant implications for understanding and treating neurodegenerative disorders.
Recent memories are stored in a distributed manner throughout the hippocampus, with small fractions of cells responding to individual words. The study provides new insights into how the brain represents memory and may lead to better treatments for neurological conditions like Alzheimer's and epilepsy.
Researchers found that persons with lower blood vitamin D levels were twice as likely to die prematurely as those with higher levels, regardless of bone disease risks. The study supports previous findings on low vitamin D being hazardous and provides reassurance on safe dosing up to 4,000 IU/day.
A recent study has identified a molecular pathway that could lead to a safer and more effective strep vaccine. The research discovered the genes responsible for producing a molecule that defines Group A Streptococcus, which causes over 700 million infections worldwide each year.