UC San Diego researchers found that the enzyme SPRK1 plays a crucial role in untangling a sperm's genome by kicking out special packing proteins. This process allows for major reorganization of the paternal DNA and enables the fusion of the mother's and father's half-genomes.
A study published in The American Journal of Psychiatry found that individuals with anorexia nervosa have altered brain circuitry that impairs the motivation to eat, leading to severe weight loss. The research suggests a powerful biology contributes to restricted eating behavior and offers new potential treatments.
The UC San Diego team created a nano-composite separator that slows down the flow of energy and heat inside lithium metal batteries when they short circuit. This allows the battery to self-discharge gradually, preventing catastrophic failure and potential fires.
A study published in Nature identified distinct microbial signatures associated with specific cancer types, including colon cancer and prostate cancer. Machine learning models trained on these signatures were able to distinguish between cancer patients and healthy individuals with high accuracy.
A new study found that low oxygen levels and warm temperatures have a strong negative impact on fish diversity in the Gulf of California. Despite these conditions, some species can survive due to adaptations. The research has implications for managing deep-sea ecosystems as climate change occurs.
Researchers at UC San Diego create an inducible quorum sensing system that allows for precise control of single and multiple bacterial populations, regulated by p-coumaric acid. This new genetic circuit enables better control over tasks such as drug delivery and bioproduction.
Researchers identified how Staphylococcus aureus and Staphylococcus epidermidis promote skin inflammation and barrier damage in Netherton syndrome. The study provides a detailed genomic description of the skin microbiome and offers a potential new treatment target by targeting the microbiome.
Researchers developed a wearable technology that can hide its wearer from heat-detecting sensors, adapting to temperature changes in just a few minutes. The device uses phase-changing materials and thermoelectric alloys to insulate the wearer's body heat, keeping them comfortable.
A new study estimates the monetary value of wetlands' property-protecting services, with one square kilometer valued at $1.8 million annually. Coastal counties with more wetlands experience less property damage from hurricanes and tropical storms.
Researchers created a map of molecules in mouse organs, revealing that microbes control bile acid structure. This modification changes how cells communicate and genes are expressed, potentially affecting disease development. Novel microbial-modified bile acids were found in up to 25% of human samples.
A new multi-sensor tool tracks subtle changes in multiple sclerosis (MS) patients, allowing for more frequent and quick assessments of disease status and progression. The device, which takes less than five minutes to use, uses a combination of sensors to capture MS-related disability and advancement.
A new study by researchers at University of California San Diego identified a strong link between heatwave exposure and increased risk of preterm delivery. The study found that longer duration heatwaves were associated with the highest risk of preterm birth, while ambient humidity also played a role in exacerbating the issue.
Researchers developed RLBox to protect browsers from buggy third-party libraries by sandboxing them, reducing the risk of attacks. The framework increases browser security and will be integrated into Firefox to shield users from vulnerabilities.
A new study found that parasitic trematode worms produce greater standing armies in areas of greater threat, demonstrating for the first time that animal societies can adjust army size to meet threat levels. The research showed that snails collected in locations with high risk of invasion had larger numbers of soldier worms.
Research finds that persistent NRF2 activation may contribute to enlarged liver and fatty liver diseases, affecting over 200 million worldwide. AKT inhibitors show promise in treating hepatomegaly.
Researchers at UC San Diego developed a system to control CAR T cells using blue light, destroying skin tumors without harming healthy tissue. In tests, the treatment reduced tumor size by 8-9 fold in 90% of mice.
Researchers at UC San Diego developed an ultrasound-emitting device that improves charge time and run time in lithium metal batteries by preventing dendrite growth. The device enables fast-charging and high-energy batteries, offering twice the capacity of current lithium ion batteries.
A new study by researchers at the University of California San Diego confirmed an association between human milk oligosaccharides (HMOs) in breast milk and infant growth. High concentrations of certain HMOs were linked to increased height and weight, while low concentrations were associated with reduced growth.
Researchers at UC San Diego developed a new ultra-low power Wi-Fi radio that consumes just 28 microwatts of power, enabling IoT devices to communicate with existing Wi-Fi networks. The chip can transmit data at a rate of 2 megabits per second over a range of up to 21 meters.
Researchers found that subtle differences in cognitive performance can predict the progression of Alzheimer's disease, even before abnormal levels of beta-amyloid plaques accumulate. Low-cost, non-invasive cognitive testing can identify at-risk individuals, making them ideal candidates for therapeutic intervention and clinical trials.
A new study has found that researchers can accurately predict a person's chronological age using machine learning algorithms and microbiome samples. The study analyzed data from over 4,400 participants across various body sites, including skin, saliva, and feces, and found significant gender-specific differences in gut microbiome results.
Researchers created 3D human gut organoids from patient cells to simulate leaky gut conditions, revealing new biomarkers and a potential pathway for tightening the gut lining. The study found that the diabetes drug metformin strengthens the junctions of mini-guts, increasing occludin levels up to six-fold.
Researchers at UC San Diego created transgenic fruit flies to study the effects of CDTa toxin on host cells, revealing a collapse of networks essential for nutrient absorption. The fly model mimics symptoms in human C. difficile-infected patients, offering a potential avenue for novel therapies.
University of California San Diego School of Medicine researchers identify a molecular pathway that allows nonalcoholic steatohepatitis (NASH) to progress into liver cell death. They found that suppressing AMPK and increasing caspase-6 activity can stop progression from fatty liver to NASH and subsequent liver cell death.
Researchers have cataloged genetic fingerprints of DNA-damaging processes that drive cancer development, providing clues to how each cancer develops. This list allows scientists to search for previously unknown chemicals and biological pathways responsible for causing cancer.
A new study found that Raise Your Resilience program, focusing on gratitude and positive attitude toward aging, increased resilience and wisdom among seniors. The program, delivered by non-licensed staff, reduced daily stress and improved overall well-being in senior housing communities.
A new imaging system, Flyception2, has recorded ultra-precise brain activities in flies during various stages of mating, including courtship. The study reveals surprising findings about brain nerve cells' activity patterns, with P1 neurons inactive during copulation and mAL neurons switched on.
Researchers developed a microfluidic device to assess tumor cells' physical ability to adhere, which could improve cancer prognosis. Weakly adherent cells are more likely to migrate and invade other tissues, increasing the risk of tumor recurrence.
A national study has found that male and female nurses are at a higher risk of suicide compared to the general population. The study, published in WORLDviews on Evidence-Based Nursing, highlights the need for suicide prevention programs specifically tailored for nurses.
Researchers at UC San Diego developed a computer-based method to determine crystal structures of materials and molecules using a machine learning algorithm, achieving at least 95% accuracy. The new approach autonomously analyzes electron diffraction patterns and can perform analysis on large samples with multiple length scales.
A new injection technique has been developed to deliver neural precursor cells to spinal cord injuries, reducing further trauma and promoting reparative cell propagation. This method may have utility for multiple neurodegenerative conditions such as spinal traumatic injury, amyotrophic lateral sclerosis, and multiple sclerosis.
Researchers assess water quality, oxygen levels and microbiomes in lakes with hippo populations, finding nutrient and organic material inputs alter chemistry and oxygen. The study suggests exponential growth of the population, posing questions about human interactions and ecosystem disruption.
Researchers at the University of California - San Diego developed a new type of cancer model using genetically engineered human pluripotent stem cells. The model replicates the intra-tumor heterogeneity observed in patients and enables the study of tumor evolution, making it a potential platform for drug discovery.
A study by University of California San Diego researchers shows that consuming green algae improves human gastrointestinal issues associated with irritable bowel syndrome (IBS) such as diarrhea, gas and bloating. The results demonstrated a significant reduction in bowel discomfort and more regular bowel movements among participants.
Researchers found that opioid dependence leads to permanent neuro-adaptations in the central nucleus of the amygdala, affecting pain transmission and GABA receptor activation. Normalizing nociceptin levels resulted in reduced opioid consumption, suggesting the peptide as a promising target for opioid use disorder treatment.
Researchers at UC San Diego School of Medicine identified genetic switches that determine whether or not liver cells produce collagen, leading to a potential therapeutic target for liver fibrosis. By manipulating these transcription factors, liver fibrosis progression can be addressed.
Researchers analyzed Twitter data during the 2014 Ukraine-Russia conflict and found that pro-Kremlin sentiment was high in Crimea but low elsewhere. The study suggests that social media data can be used as a source of military intelligence to estimate potential casualties and costs incurred from occupying foreign territories.
Researchers have developed mosquitoes that can halt the transmission of the dengue virus, targeting four known types of the disease. The engineered mosquitoes use a human antibody to hinder virus replication and prevent transmission to humans.
UC San Diego researchers identified αvβ5 integrin as the key contributor to Zika virus' ability to infect brain cells. Blocking this integrin with antibodies or small molecule inhibitors effectively prevents Zika virus from infecting both normal brain stem cells and cancer stem cells.
In mouse studies, a 'methylation clock' on the ELOVL2 gene ticked toward impaired vision with decreased gene expression, but boosting expression rescued age-related decline in visual function. The study highlights ELOVL2's regulatory role in producing essential fatty acids for healthy retinal function.
When non-motile E. coli and motile A. baylyi are mixed, stunning floral patterns emerge due to differences in growth rate, motility, and friction against the agar surface. This phenomenon has important implications for understanding growing biofilms.
A Phase III clinical trial found that eating seven or more servings of vegetables and fruits daily did not provide extra protection against prostate cancer. Despite this, a healthy diet rich in fruits and vegetables may help patients tolerate cancer treatments.
Researchers at University of California San Diego School found that alcohol dependence remodels the functional architecture of mouse brains, leading to increased coordinated activity and reduced modularity. This change is associated with cognitive impairment, emotional distress, and intense craving in mice.
A new study finds that solar geoengineering could reduce global income inequality by 50%, with poorer countries benefiting most. The technology could also lead to a 200% increase in GDP growth for developing countries.
Researchers at UC San Diego have discovered a bacterial immune system that works by abortive infection, where the infected cell self-destructs. This new system could be employed to improve treatment of multidrug-resistant bacterial infections through phage therapy.
Researchers identified three main themes that shape people's experience of living with loneliness, including individual differences, social isolation, and lack of meaningful activities. The study suggests that effective interventions can be developed by understanding the underlying causes of loneliness in senior housing communities.
Engineers at UC San Diego created a way to fabricate perovskite single crystals with precisely deformed structures, enabling significant changes in material properties. The researchers found that -1.2% strain produced samples with the best charge-carrier mobility and stabilized its photoactive alpha phase.
A study comparing 900 vertebrate species found bats' gut microbiomes resemble birds', not other mammals, suggesting flight's evolution may directly affect gut microbiomes. This paradigm shift challenges previous assumptions about animals and their microbes.
A new study found that shutting down coal-fired plants in the US reduces nearby pollution, saving an estimated 26,610 lives between 2005 and 2016. The transition from coal to natural gas also improves crop yields, with a loss of 10.2 billion bushels of crops avoided.
A collaborative conservation approach involving government agencies, researchers, and nonprofits has led to a significant recovery of Nassau Grouper populations in the Cayman Islands. The population increased by nearly threefold over 10 years, with rapid growth due to an increase in new, younger fish joining the aggregation.