A new gene therapy approach has shown promising results in slowing the progression of Alzheimer's disease by reducing cognitive decline. The therapy, which involves delivering nerve growth factor to the brain, demonstrated significant improvements in patients' mental status and brain activity.
The researchers developed a novel molecular reporter system to visualize the activation of protein Src, which plays a key role in cell growth and development. By studying mechanical stimuli on Src activation, they discovered that biochemical signals spread across cells through structural elements like actin filaments and microtubules.
A study published in Science identifies the master gene grainyhead as essential for wound repair in both fruit flies and mice. The researchers found that grainyhead is required to activate genes involved in cuticle repair, which then regenerate injured patches of skin.
Scientists at UCSD successfully shape carbon nanotubes into sharp bends, enabling new applications in atomic force microscopy and fuel cells. The breakthrough could lead to more efficient and compact electronic devices.
A new study reveals that overfishing of sharks triggers a domino effect of changes in abundance, contributing to the degradation of Caribbean reefs. The researchers found that sharks play a crucial role in maintaining the stability of the ecosystem, and their removal can lead to a decline in plant-eating fish populations.
A study by UCSD researchers suggests that BMP-15 plays a crucial role in determining ovulation quota and litter size in mammals. The team found that BMP-15 is produced normally in humans but degraded in mice, leading to increased egg production and ovulation.
Researchers at UCSD School of Medicine have discovered a natural tumor suppressor called PHLPP, which can be turned on in certain cancer cells to prevent tumor formation. By deleting a phosphate molecule from the Akt protein, PHLPP terminates cell-growth signaling and promotes programmed cell death.
Research suggests individuals with autism spectrum disorders have a dysfunctional mirror neuron system, contributing to impairments in social interaction and communication. Biofeedback and mirror therapy may be potential treatments for high-functioning autistics.
Researchers at UCSD have identified a vital step in cellular migration that could lead to new therapeutic interventions for autoimmune diseases. The study found that alpha4 integrins recruit enzymes to block Rac activity only at the rear of a crawling cell, maintaining directional movement.
Researchers at the University of California, San Diego (UCSD) have developed an animal-free culture medium that can maintain human embryonic stem cells in a continuous undifferentiated state. The study's findings provide a new way to generate human stem cell lines without contamination by animal cells or products.
Researchers found that grapheme-color synesthetes see reported colors and experience activation in color-selective brain regions. Stronger color perception was linked to better behavioral performance.
Researchers have developed a new type of laminate that performs spectacularly in ballistics tests due to its high strength-to-weight ratio. The material is made by alternating layers of aluminum and titanium alloy foils, mimicking the internal structure of the red abalone's shell.
UCSD researchers discovered that titanium particles weaken artificial joints by affecting bone-building and -destroying cells. The study's findings suggest improved implant material with enhanced wear resistance and fatigue properties to reduce particle generation.
The study developed mice with a mutant form of ELOVL4, which causes significant lipofuscin accumulation and photoreceptor death, closely resembling human AMD and STGD. This model now permits testing of potential therapies for the dry version of age-related AMD and STGD.
Researchers at University of California - San Diego have made a significant breakthrough in treating inflammatory bowel disease by discovering the molecular mechanism behind IFN-α/β therapy. The study reveals that activated IFN-α/β plays a protective role in colonic inflammation and maintains intestinal homeostasis.
The study confirms the existence of an Edomite state before the 8th century B.C. and demonstrates two major phases of copper production in the region. The discovery of massive fortifications, over 100 building complexes, and Egyptian scarabs provide strong evidence for metal-working activities.
Researchers at Perlegen and Calit2 have developed a method to analyze whole-genome data, making it possible for genome-wide association studies to be performed on a reduced budget. The study reveals that most functional human genetic variation is not population-specific, with only 18% of SNPs segregating in one population sample.
A new study by Scripps Institution uses computer models and real-world data to capture signals of human-produced warming in the oceans. The results show that the warming is likely caused by human activities, with a high degree of confidence exceeding 95%. This finding has significant implications for regional water supplies, including ...
The Sulpizio Family Cardiovascular Center will offer advanced cardiac care with a range of treatment options and expanded access to clinical trials. Construction is set to begin in 2009, with plans for the new facility including diagnostic and treatment areas, office space, and 16-20 examination rooms.
Researchers have discovered the molecular structure of a glycolipid receptor to which Bt toxin binds, potentially leading to more effective pesticides and new treatments for parasitic infections. The study's findings could also help prevent insect resistance to Bt toxins.
Scripps scientists challenge conventional theory on seamount chain formation by finding that hot spot chains can change direction due to processes unrelated to plate motion. The study provides new insights into the dynamics of the earth's interior and suggests alternative explanations for seamount patterns.
The UCSD team identified isl1+ cardiac progenitor cells in newborn rats and mice, as well as in human heart tissue, which can spontaneously form heart muscle tissue. The discovery raises the possibility of using these cells to correct a wide spectrum of pediatric cardiac diseases.
Researchers compared yeast, worm, and fly proteins and found conserved communication pathways and protein clusters involved in essential cellular functions. The study supports the concept of a basic wiring diagram for all eukaryotic cells and may lead to more effective treatments with fewer side effects.
The Calit2 Undergraduate Bioinformatics Scholar Award recognizes outstanding undergraduate research in bioinformatics. This award aims to encourage students to commit to publishing and academic advancement in the field.
A study published in Science identified interleukin-1Beta (IL-1â) as a major cause of severe inflammation in mouse models of Crohn's disease, which is a chronic inflammatory bowel disease affecting over 500,000 Americans. High levels of IL-1â were found in mice with mutant NOD2, a genetic defect linked to 50% of Crohn's cases.
Scientists have identified a positive feedback loop in rat whiskers that helps gather sensory information, potentially leading to new treatments for blepharospasm. The discovery could also deepen understanding of the human eyeblink circuit and its connection to neural circuits.
The UCSD study reveals that mentally ill homeless individuals are more common than expected, with a disproportionate impact on African Americans and Latinos. Treatment for substance abuse and access to public-funded health benefits may help reduce homelessness in this population.
Researchers analyzed Al-Sayyid Bedouin Sign Language (ABSL), a community of 3,500 deaf and hearing people, revealing a distinct grammatical structure that establishes systematic relations among words. ABSL follows a Subject-Object-Verb order, differing from English and other languages in the region.
Researchers found that deleting pro-inflammatory enzyme IkB kinase â (Ikk-â) from immune cells' macrophages improves insulin sensitivity, offering hope for new type II diabetes treatments. The study suggests targeting myeloid cells and their macrophages as a potential strategy for treating the disease.
Researchers at UCSD and Salk Institute have discovered that small carboxyl-terminal domain phosphatases (SCPs) play a crucial role in the maintenance of neural stem cells and silencing of neuronal genes. This finding suggests a way to expand the pool of neuronal stem cells, potentially leading to new treatments for neurological disorders.
Researchers found that human embryonic stem cells contain a non-human sialic acid called Neu5Gc, which is incorporated from animal-derived culture materials. The discovery poses a safety concern for the potential therapeutic use of these cells in humans.
Researchers at the University of California, San Diego, have developed a technique to identify the precise mix of extracellular matrix proteins that optimally prompts mouse embryonic stem cells to begin differentiating into liver cells. This breakthrough enables scientists to use inexpensive and widely available reagents and machinery ...
Researchers at UCSD have discovered a unique structure in abalone shells that can provide the basis for lightweight and effective body armor. The shells' layered structure, made of calcium carbonate tiles held together by protein adhesive, is theoretically the toughest arrangement possible.
The study identifies a protein called ASF/SF2 as a regulator of calcium enzyme responsible for heart contraction and tissue growth. The researchers found differences in male versus female mice, with males experiencing greater disease and dying earlier.
The von Liebig Center has awarded $1.8 million to 39 projects led by Jacobs School faculty, with a focus on removing inflammatory mediators from plasma and developing handheld gas analyzers for lung disease diagnosis. Researchers will also explore new materials and techniques for creating high-efficiency LEDs.
A structured group session improved quality of life, mood, and function in AMD patients after six months. The program also prevented depression cases and increased participants' confidence in their physical abilities.
The discovery reveals a quasar with an extreme redshift of 2.11 found within the center of an active spiral galaxy called NGC 7319. This finding casts doubt on the idea that quasars are extremely distant objects and could impact our understanding of cosmology.
Biologists at UCSD have found a fundamental mechanism used by embryonic stem cells to assure that genetically damaged stem cells do not divide and pass along the damage. The discovery reveals that p53, a protein known for suppressing tumors, plays a critical role in maintaining genetic stability.
Benjamin Raphael, a UCSD postdoctoral researcher, has been awarded a $500,000 Burroughs Wellcome Fund Career Award to analyze tumor genome architectures and identify genes important for tumor growth. His work aims to develop cancer diagnostics and understand how tumors behave and progress.
Researchers at Scripps Institution of Oceanography have cloned a gene from the marine invertebrate Bugula neritina, which may prove key in developing new cancer drugs. The cloned gene, bryA, is thought to be involved in the production of bryostatin, a family of chemical compounds with potential as anticancer pharmaceuticals.
Researchers from UC San Diego analyzed changes in gene orders on chromosomes and compared rearrangements in the chicken genome to those in the human, mouse, and rat genomes. The study found that chickens are closer to humans than previously thought when it comes to genomic architecture.
The international Argo program has reached a milestone with 1,500 ocean-traveling float instruments now operating, providing valuable data on climate and weather phenomena. This coverage represents half of the target 3,000-float array, enabling scientists to monitor the planet's oceans and gain insights into ocean processes.
Biologists at UCSD identified a gene regulating plant branching, which they believe was crucial in transforming teosinte into maize. The researchers found numerous variants of the gene in teosinte but only one variant in modern maize, suggesting targeted human selection may have played a key role.
Studies with mice found that activating PPAR-gamma and PPAR-alpha can prevent cholesterol accumulation in atherosclerotic lesions by up to 70 percent. The researchers identified distinct molecular pathways for the two types of proteins, which could lead to new anti-atherosclerotic medications.
Scientists on a research cruise off the Alaskan coast have identified previously undiscovered deep-sea habitats and sparked debate about the causes of a devastating 1946 tsunami. The expedition used cutting-edge technology to map the seafloor, collect sediment samples, and probe the region with an ROV.
A study led by UCSD biologists found that blood vessels respond to low oxygen levels, which may be a potent anti-tumor strategy. The research identified a gene, HIF-1alpha, that turns on in endothelial cells when they lack oxygen, causing them to proliferate and migrate.
Researchers at UCSD have discovered an effective treatment for FCAS, a rare disorder that causes fever, joint pain, and flu-like symptoms after exposure to cold conditions. The treatment, anakinra, inhibits an abnormal immune response that leads to symptoms in FCAS-affected patients.
Researchers found that native Mandarin speakers are almost nine times more likely to have the ability. Early music training also plays a significant role in developing perfect pitch, with Chinese students showing higher incidence rates than U.S. counterparts.
Researchers at UCSD use microscopic silicon chips with magnetic properties to control the movement of particles and cargo in oil droplets. This allows for efficient transport and manipulation of tiny biological samples without pumps or channels.
Researchers find adenosine controls timing of neural activity in developing visual system, shedding light on disorders like fetal anti-convulsant syndrome. The discovery could lead to new therapeutic approaches, such as recreating spontaneous waves of activity for adult retinas.