Biologists have uncovered a key protein in the slime mold Dictyostelium discoideum that enables it to home in on bacteria, similar to human white blood cells. This discovery provides new insights into immune cell directionality and may lead to effective treatments for cancer and other diseases.
Engineers at UC San Diego created a tricorder-like device that tracks lactate levels and heart signals in real-time, offering potential benefits for athletes and individuals with cardiovascular disease. The patch can be worn on the chest and communicates wirelessly with a smartphone or laptop.
Researchers found that current screening tools result in a 7% false-negative error rate, misclassifying individuals with mild cognitive impairment as cognitively normal. This can lead to delayed diagnosis and treatment, impacting individual health and research studies.
Research found that high levels of the protein p62 are strongly associated with cancer recurrence and reduced patient survival in human liver samples. In mice, p62 was required for liver cancer to form. The study suggests p62 could be used as a prognostic marker and potential therapeutic target for liver cancer.
Researchers discovered an alternative pathway emerges when ERK1/2 is blocked, allowing tumor cell proliferation to continue. Targeting both ERK pathways concurrently with drug inhibitors halted colorectal cancer growth more effectively in mouse models and human cell lines.
UC San Diego scientists create innovative imaging system to study brain activity in free-moving fruit flies, providing first glimpse into neural processes underlying mating, learning, memory, and more. The 'Flyception' technique enables real-time monitoring of brain activity at unprecedented speed and precision.
Researchers found that immunization with soil bacterium Mycobacterium vaccae promoted stress resilience and improved coping behaviors in mice. The treatment also prevented stress-induced colitis, a symptom of inflammatory bowel disease, by approximately 50 percent.
A randomized clinical trial found that sitagliptin was not significantly better than a placebo in reducing liver fat in patients with NAFLD. However, advanced imaging techniques such as MRI-PDFF and magnetic resonance elastography proved to be accurate and useful in measuring disease state and progression.
Researchers have provided direct experimental proof that the Brazilian Zika virus strain can cause severe birth defects, including microcephaly and neurological diseases. The study used mouse models, human stem cells, and cerebral organoids to demonstrate the causal effect of the Brazilian virus on health.
A massive analysis of DNA samples from over 13,000 U.S. soldiers has identified two statistically significant genetic variants associated with an increased risk of post-traumatic stress disorder (PTSD). The findings suggest a possible link between PTSD and autoimmune disorders such as multiple sclerosis and rheumatoid arthritis.
A US study found that a gender-equity program involving both husbands and wives reduced marital sexual violence while improving contraceptive practices in rural India. The CHARM program demonstrated the effectiveness of including men in family planning counseling.
Researchers have identified genetic variations in the PKC alpha enzyme that boost its activity and contribute to the development of Alzheimer's disease. These variants were found in five families with late-onset Alzheimer's disease and are associated with increased PKC alpha activity.
Researchers have discovered how Zika virus blunts brain development by hijacking the human immune system. The study found that activating a specific protein called TLR3 triggers genes that block stem cell differentiation and lead to increased cell suicide.
Researchers at UC San Diego School of Medicine showed ozanimod moderately effective in treating ulcerative colitis. Ozanimod reduced rectal bleeding and healed intestinal mucosal lining.
A clinical study reveals that glioblastoma subtypes develop in distinct brain regions, shedding light on the origins of these aggressive brain cancers. The discovery may lead to more effective personalized treatment approaches by identifying specific subtype markers.
A study published in Climatic Change found that emphasizing the collective causes of climate change significantly increases willingness to donate, whereas personal responsibility framing has little effect. The researchers surveyed over 1,500 participants and found a consistent increase in donations when framing the issue collectively.
Scientists at UC San Diego have developed a new tool that allows them to visualize nanoscale mixing processes occurring in liquids. This technique enables researchers to study chemical interactions and kinetics, previously impossible with traditional methods.
A team of engineers and marine biologists at the University of California, San Diego, developed a claw-like device based on the sea urchin's mouthpiece to sample sediments on other planets. The device uses five curved teeth with triangle-shaped tips that can scrape, cut, chew, and bore holes into tough rocks.
Researchers at UC San Diego found that DNA segments become jammed within viruses when sticky, causing the DNA to behave like LEGO pieces. Adding polyamines can cause viral DNA to become jammed and halt packaging.
An international team of astronomers has discovered three Earth-sized planets orbiting a nearby ultracool dwarf star, TRAPPIST-1. The planets are located within the star's habitable zone and may have conditions suitable for life.
Researchers have created an 'adaptive protein crystal' that exhibits a unique property called 'auxetic', where stretching or compressing the material causes it to thicken or shrink in the opposite direction. This material has potential applications in shock-absorbing materials and body armor.
Researchers have developed GeNemo, an innovative search engine for functional genomic data. This tool allows users to search inside the data using pattern matching, enabling discoveries of functional aspects in specific genome regions associated with normal physiology or disease.
A new model of care for patients with low-risk prostate cancer has been tested, improving patient outcomes by increasing surveillance rates among very low-risk patients. The evidence-based approach uses best practices to select and follow patients, enhancing acceptance and use of active surveillance disease management.
Researchers used human and environmental samples to analyze microbiome and metabolome data, reporting conclusions in 48 hours. The study found that fermented food molecules influenced the chemical environments of people consuming them.
A large study published in The Lancet found that varenicline is more effective than bupropion or nicotine patch for quitting smoking. Compared to placebo, the medications showed no significant increase in moderate or severe neuropsychiatric events.
Researchers developed a new computer algorithm called REVEALER to identify groups of genetic variations associated with cancer cell activation and treatment responses. Using large tumor genomics database The Cancer Genome Atlas, REVEALER revealed new gene mutations linked to cancer development and treatment resistance.
Researchers found that unexpected events activate the same brain system responsible for interrupting movement, leading to impaired working memory and disrupted trains of thought. The study focuses on the subthalamic nucleus (STN), a key player in Parkinson's disease treatment.
Researchers found that pollutants in seafood, including DDT and flame retardants, can interfere with the body's P-gp protein, which protects against foreign chemicals. The study suggests a risk assessment for protecting human health when eating contaminated seafood.
Researchers at UC San Diego School of Medicine are establishing an interdisciplinary center to define the systems biology of antibiotic resistance, a pressing global medical challenge. The program aims to develop new strategies for treating antibiotic-resistant infections by combining experimental and computational methods.
Biologists at UC San Diego found that manipulating the Ryk signaling protein enhances the return of function after traumatic injury, allowing for partial restoration of neural circuits with rehabilitative training. This discovery opens up new opportunities to apply nervous system development principles to treat paralysis in adulthood.
Research reveals enlarged endosomes as early sign of neurodegeneration in Alzheimer's Disease and Down Syndrome. Abnormally active Rab5 protein disrupts axonal transport and neuronal function.
Researchers have designed molecules that promote the formation and retention of memories by increasing dendritic spine density in neurons. The compounds also prevent the loss of these spines in the presence of amyloid-beta, a protein implicated in Alzheimer's disease.
A new study found that married patients with cancer fare better than unmarried ones, but the benefits vary by demographics. Unmarried individuals, particularly men, experience higher mortality rates compared to their married counterparts. The study also showed that birthplace and acculturation impact cancer survivorship.
Researchers developed a novel method to measure mortality risk in elderly cancer patients with multiple diseases, providing a more accurate assessment than current survival rates. The approach uses machine learning and calculates the 'omega factor,' which compares a patient's cancer mortality risk to their overall mortality risk.
A multi-disciplinary team of researchers has identified a pivotal role for sphingomyelin in driving inflammatory mechanisms underlying type 1 diabetes and obesity-related kidney dysfunction. This study provides new insights into the underlying mechanisms of diabetic kidney disease and may lead to the development of novel treatments.
Researchers found that adequate vitamin D levels can prevent all types of invasive cancer combined. The study suggests a reduced risk of cancer at serum 25-hydroxyvitamin D concentrations of 40 ng/ml or greater.
Researchers at University of California, San Diego School of Medicine found that certain groups of gastrointestinal stromal tumors result in a much higher mortality rate than expected. The study analyzed data from 378 patients with malignant GISTs and discovered significant variability in size and malignant behavior.
Researchers developed a novel 3D imaging technique that provides accurate detection of advanced fibrosis in liver disease. The technology outperforms current methods, offering improved accuracy and reduced invasiveness.
Researchers developed a record-breaking steel alloy that can withstand impact without deforming permanently, with an elastic limit of 11.76 giga-Pascals. The material's unique structure allows it to be both hard and non-brittle, making it suitable for various applications.
A global study found that people living in densely populated and walkable neighborhoods with interconnected streets got up to 90 minutes of physical activity weekly. Four environmental attributes stood out as having the most impact on physical activity: net residential density, intersection density, number of parks and public transit d...
Researchers found a short overnight fast was associated with a 36% higher risk of breast cancer recurrence and 21% higher probability of death. Prolonging overnight fasting intervals may be a simple strategy for reducing breast cancer risk, according to the study.
Researchers found that aging diminishes the mammalian central nervous system's ability to regenerate axons after a spinal cord injury. As a result, middle-aged adults already have a significantly reduced ability to regenerate compared to young adults.
Researchers found that UPF3A protein plays critical role in RNA regulation and male fertility, potentially leading to new treatments for infertility and various genetic diseases. The study also reveals the importance of NMD pathway in eliminating faulty mRNAs and preventing disease.
Stefan Savage's work has made significant contributions to network security, including combating spam and vulnerabilities in automotive systems. His research has also influenced international standards and cybersecurity initiatives.
A study published in the American Journal of Geriatric Psychiatry identified 11 core themes associated with dying well, including preferences for specific dying processes, pain-free status and emotional well-being. Researchers emphasized the importance of discussing end-of-life wishes with patients to ensure a 'good death'.
A study by UC San Diego biologists found that beach replenishment with offshore sand can lead to a twofold reduction in the abundance of intertidal invertebrates after 15 months. The researchers also discovered that some species, such as sandhoppers and bean clams, recovered within a year, while others declined sharply.
Scientists have successfully directed stem cell-derived neurons to regenerate lost tissue in damaged corticospinal tracts of rats. This breakthrough improves forelimb movements and upends the existing belief that corticospinal neurons lack internal mechanisms for regeneration.
Researchers found that desert mangroves in Mexico's Baja California store nearly 30% of the region's belowground carbon, exceeding estimates. The study highlights the importance of mangrove conservation and ecosystem services in mitigating climate change.
Researchers found that Asian honey bees produce different types of vibrational stop signals when attacked by giant hornets, which vary depending on the level of danger and context. These signals can inhibit recruitment to dangerous food sources or alert nestmates to imminent threats.
Researchers discovered that small RNAs and the Argonaute enzyme work together to fine-tune egg composition, supporting embryonic development. The study found that varying small RNA levels can precisely control material production in eggs.