Researchers discovered that deleting two related genes linked to inherited Alzheimer's disease causes memory loss, nerve cell death, and brain degeneration in mice. The study suggests that blocking the function of these genes may worsen the disease, providing a new perspective on its cause.
Olfactory sensory neurons can adapt to odorant stimulation, but the ability to enhance long-term survival after stimulation has been unclear. Researchers found that odorants stimulate the Erk/MAP kinase/CREB pathway, leading to cell survival and dynamic long-term adjustment to sensory information.
A new study published in Neuron reveals that the brain processes continuous dimensions such as size and luminance in distributed regions of the cortex. The researchers observed that there is considerable overlap between local brain regions and no single region uniquely selective for one particular stimulus.
Researchers found that galectin-1, a molecule present in various tumor types, negatively impacts T cell survival and contributes to tumor progression. Inhibition of galectin-1 significantly reduces tumor formation in mice, highlighting its potential as a molecular target for cancer immunotherapy.
Researchers found ants in Florida, North Carolina, and New York exhibit different caste structures and body sizes, suggesting adaptation to local environments. Behavioral experiments show soldier castes play a key role in colony defense.
Researchers analyzed DNA from western gorilla fecal and hair samples to find that neighboring social groups are often led by genetically related males. This suggests connections between genetic relationships and group interactions, parallels with human social structures, and clues to the early human social world.
Researchers have found that deliberate damage to sensory receptor cells in the inner ear can trigger a cascade of signals through ATP release, leading to the spread of calcium ions. This mechanism is activated by loud noise levels commonly experienced in nightclubs and when using personal headphones.
Researchers found that HDAC inhibitors and DPDTB can inhibit aggresomes formed by mutant SOD protein, suggesting a potential new therapeutic approach for ALS. This study may lead to alleviating ALS symptoms and prolonging life span in transgenic mice models.
Researchers identified a mechanism preventing immune system destruction of chronic viral infections like herpes and HIV. Regulatory CD4+ T cells suppress normal function of CD8+ T cells in persistently infected mice, allowing virus to evade the immune system.
The Mixed-Lineage Leukemia (MLL) gene plays a crucial role in blood cell development, with its absence resulting in the failure to produce normal blood cells. MLL regulates critical genes necessary for hematopoiesis, a complex process of blood cell formation.
Researchers identify Twist proteins as transient inhibitors of osteoblast differentiation, negatively regulating Runx2. This finding provides insight into the complexity of osteoblast differentiation and its initiation by the relief of inhibition.
A new mouse model of SBMA has been created, showing that the abnormal androgen receptor interferes with vascular endothelial growth factor (VEGF) production, leading to motor neuron degeneration. The study suggests VEGF may play a pivotal role in protecting motor neurons from damage.
Researchers created a mouse model for migraines to study debilitating headaches. The FHM mouse showed increased calcium channel activation and susceptibility to cortical spreading depression (CSD), suggesting hyperexcitability in the brain may trigger pain.
Researchers discover IGF-1R inhibition significantly impacts tumor cell growth and sensitivity to chemotherapy, highlighting its potential as an anticancer therapeutic. Two selective inhibitors of IGF-1R are identified with potent antitumor activity against multiple myeloma and other hematological malignancies.
Researchers found that elevated levels of protein MUC1 in human tumors reduce apoptosis signals and confer resistance to anticancer agents. Reducing MUC1 increases sensitivity to these drugs, suggesting it as a potential target for future cancer therapeutics.
A recent finding reveals a frequent abnormal cellular event occurring in about half of all myeloma cases, identifying c-maf as an attractive target for therapeutic intervention. Inhibition of c-maf function blocks tumor formation in mice, suggesting its potential as a novel target for future therapies.
Researchers discovered that the radish gene encodes a phospholipase-A2 enzyme, which plays a crucial role in anesthesia-resistant memory. The study found this enzyme is also involved in memory formation in chickens and rodents, suggesting a conserved mechanism across animal phyla.
Researchers discovered a protective protein, Wlds, that safeguards dopamine-axon connections in Parkinson's disease. The study revealed that while the protein protects axons, it does not prevent cell body damage, highlighting differences in degeneration processes.
A new theory by Steven Frank proposes that cancer progression speeds up with age, leading to increased incidence in older adults. As people age, fewer stages remain before cancer develops, resulting in higher cancer rates.
A new animal model of pancreatic cancer has been developed, which mimics both non-invasive and invasive forms of the disease. The study identified a unique protein signature in the blood of animals with precancerous lesions, offering potential for early detection and therapeutic targets.