Articles tagged with Gene Expression
A team of researchers at Washington University in St. Louis has discovered that individual cells isolated from the biological clock can keep a 24-hour rhythm, but they are unreliable on their own. The cells must communicate with each other to establish a coherent daily cycle.
Researchers have identified a new mechanism underlying sex-specific gene expression in mice, with PPAR-alpha repressing genes involved in immunity and steroid production. The study also found that this repression is mediated by sumoylation, a process only occurring in female mice, and suggests potential new approaches to prevent estrog...
Researchers discovered that PPAR-alpha's sumoylation process regulates gender-specific gene expression and protects female mice from estrogen-induced liver disease. This finding suggests potential new approaches to prevent this condition by targeting PPAR-alpha agonists.
Researchers found 44 genes up-regulated in CKD patients, including 11 involved in oxidative phosphorylation. Elevated reactive oxygen species (ROS) levels were also detected, suggesting a vicious circle of respiration dysregulation that contributes to CKD.
A new study by University of Illinois researchers reveals that environmental factors can alter aggression levels in honey bees. By analyzing gene expression patterns in response to alarm pheromone, the team found similarities between short-term and long-term changes, suggesting a connection between nurture and nature.
Researchers identified 66 genes involved in relapse, including those related to neuroplasticity and learning. The study used a heroin behavioral incubation model to mimic real-life situations that trigger relapse.
Research found that maternal exposure to titanium dioxide nanoparticles affects gene expression related to the central nervous system in developing mice. This may have implications for diseases such as autistic disorder, epilepsy, and learning disorders, as well as Alzheimer's disease, schizophrenia, and Parkinson's disease.
Researchers at OMT successfully created heritable, specific and permanent genetic modifications in rats using Zinc Finger Nuclease (ZFN) technology. This achievement paves the way for unrestricted development of a novel human monoclonal antibody platform.
The University of Leeds team is developing a digital model to predict the timing of plant flowering, which could help farmers improve crop yields. The model uses computer simulations to account for changes in genetic structure and environmental factors like climate.
The study found that DKK-3 and WIF-1 proteins are associated with liver cancer development, suggesting potential as biomarkers for early detection. The research suggests blocking this pathway may improve treatment options for liver cancer through further study.
A team of neuroscientists at Cold Spring Harbor Laboratory has discovered the mechanism by which a signaling protein controls the maturation and strength of excitatory synapses. The study, led by Professor Linda Van Aelst, found that oligophrenin-1 stabilizes postsynaptic AMPA receptors, which is essential for proper synaptic function.
A review of phase I clinical trial designs and the association between lymphovascular invasion and breast cancer recurrence, highlighting the need for new methods to expedite drug development and improve patient outcomes.
A recent study found that women have a more powerful innate immune system than men due to the presence of estrogen. Estrogen blocks an enzyme called Caspase-12, which prevents the inflammatory process, making women more resistant to infection.
Researchers propose trial designs to investigate the impact of physical activity and weight control on breast cancer risk, with potential causal relationships. Clusterin is identified as a tumor suppressor gene in mouse models of neuroblastoma, where its expression affects tumor growth and metastasis.
A study by University of Illinois scientists reveals the FRG1 gene is crucial for angiogenesis, contributing to blood vessel growth and organization in the retina. The findings support the idea that FRG1 expression is a main cause of visual deficits associated with facioscapulohumeral muscular dystrophy.
Scientists have identified a new, infectious prion in yeast that can affect the expression of hundreds of genes. The discovery raises questions about the role of these proteins in degenerative brain diseases and their potential impact on human cells.
Researchers found that a significant amount of inbreeding depression is due to key genes affecting other genes, particularly those involved in metabolism and stress. The study also identified distinct gene expression changes across different chromosome regions, suggesting a complex interplay between genetic mechanisms.
Aspirin inhibits H. pylori growth and enhances susceptibility to metronidazole, clarithromycin and amoxicillin by affecting outer membrane protein expression and increasing endocellular antimicrobial concentrations.
Researchers found that gene expression profiles differed between tumor samples from patients who had taken vitamin E, selenium, or both supplements compared to those on placebo. The study provides insight into the effects of preoperative supplement use on prostate cancer gene expression, a potential area for future investigation.
Research suggests that blocking RHAMM expression can selectively induce fat cell generation, replacing lost cells in the aging process and reducing deposits of unhealthy visceral fat. This technique could provide a non-surgical approach for wrinkle reduction and skin normalization.
Researchers discovered that aging causes a dramatic drop in COX-2 enzyme levels, leading to reduced stem cell differentiation into cartilage and decreased bone formation. The study found that manipulating the COX-2 pathway with experimental drugs can rescue healing ability lost with age.
Researchers from USC and Cambridge have developed a method to track the activity of specific genes in real-time using a specially modified camera and computer vision techniques. This breakthrough has potential applications in various fields, including military, retail, and entertainment.
A new technique allows for the simultaneous tracking of gene expression and movement in Drosophila flies, enabling researchers to study correlations between behavior, gene expression, and aging. The method uses green fluorescent protein (GFP) and specially modified video cameras to track movement and quantify GFP expression in real-time.
Researchers found that among women under 40, black women have a higher breast cancer incidence rate than white women. However, this trend reverses among women over 40, with white women having a higher incidence rate. The study confirms the age-related crossover effect in breast cancer incidence rates between black and white ethnic groups.
Researchers have identified MEDNIK syndrome as a debilitating genetic disorder characterized by mental retardation, enteropathy, deafness, and other symptoms. The AP1S1 gene mutation is found to cause impairment of neural networks, including the spinal cord, inner ear, and brain.
Researchers have developed a new method to prioritize disease-associated SNPs by analyzing genes with high differential expression rates. This approach, called fitSNPs, successfully distinguished true disease genes from false positives in genome-wide association studies, and can serve as a powerful tool for prioritizing disease genes.
A team of researchers has discovered MEDNIK Syndrome, a debilitating genetic syndrome characterized by mental retardation, enteropathy, deafness, and peripheral neuropathy. The AP1S1 gene mutation causes this disorder, affecting development in the skin and spinal cord.
Scientists at St. Jude Children's Research Hospital discovered that a specific differentiated cell type requires constant expression of the Prox1 gene to maintain its identity. In its absence, lymphatic endothelial cells reprogram into blood endothelial cells, gaining new characteristics.
Researchers have developed a new approach to modulate gene expression using miRNA natural gene repressors for therapeutic purposes, effectively treating cancer in mice. Additionally, the study has provided insight into the molecular mechanisms controlling epithelial fluid and HCO3– secretion, which may help understand cystic fibrosis.
Scientists have developed a new approach to harness the power of microRNAs (miRNAs) as natural gene repressors for therapeutic purposes. By engineering mouse bone marrow cells to express genes only when miR-181a is downregulated, they were able to create immune cells that could target and destroy cancer cells.
New UGA research sheds light on the important role of the Foxn1 gene in maintaining T cell production in the thymus. The study suggests that understanding how this gene works could lead to new therapies for various illnesses, including age-related immunodeficiency disorders.
A new study from the University of Iowa found that lung airway cells can activate vitamin D, leading to the expression of genes involved in immune defense. The active form of vitamin D helps fight bacterial infections and reduces inflammation.
Researchers discovered that injecting human recombinant interleukin-6 improved insulin sensitivity and glucose absorption, increasing fat metabolism genes. A preliminary study suggests this molecule could help prevent diabetes and obesity in humans in the medium term.
Research reveals endocan protein expression is higher in normal tissues than in colorectal cancer, with positive correlation to tissue differentiation. Elevated serum levels of endocan found in late-stage lung cancer, suggesting its potential as a biomarker.
A new study finds that birds have a 'thumb' due to gene expression similar to alligators, not mice. The research rekindles the hypothesis of a developmental frameshift in the evolution of bird wings.
Researchers found three subgroups of glioblastomas with varying degrees of methylation, leading to improved survival times in the subgroup with mixed levels. The study highlights the importance of methylation status in determining treatment outcomes and potential biomarkers for this disease.
Researchers found a group of 48 genes that can predict susceptibility to toxic compound MNNG, leading to varying cell responses. The study appears in Genes and Development, providing new insights into how individuals respond to chemotherapy.
Researchers have developed a gene therapy that prevents blindness in an animal model of mitochondrial dysfunction. The treatment, which involves allotropic expression of mitochondrial genes, restored normal function to human fibroblasts with mutated mtDNA, effectively rescuing animals from impending blindness.
Researchers found that a subtle difference in gene activity is responsible for one in every 10 colon cancer cases. The study identified a specific gene, TGFBR1, which normally protects against cancer, and its abnormal expression increases the risk of colon cancer nearly nine times.
Researchers at the University of Florida have identified a molecular signature based on gene expression that can predict the development of acute graft-versus-host disease (GVHD) in patients receiving liver stem cell transplants. This could lead to better biomarkers for determining patient risk and improving treatment outcomes.
Researchers identified four distinct molecular subtypes in patients with scleroderma, offering new hope for better diagnosis and targeted therapies. The study uses gene expression patterns to classify patients, which could help predict disease progression and treatment response.
A study published in PLOS ONE found that eating broccoli rich in glucosinolates can help men stay healthy and reduce the risk of developing prostate cancer. The research, led by Professor Richard Mithen, showed that relatively low amounts of cruciferous vegetables can have large effects on gene expression.
A study by researchers from UWM found that a specific version of the DRD4 gene appears to have different effects depending on one's environment. In nomadic Ariaal men with the 7R allele variant, this gene is linked to better health and nourishment.
Researchers have identified a specific Hox gene controlling pontine neuron migration in mice. The study shows that the gene regulates the responsiveness of neurons to chemical signals, guiding them towards their final destination in the brain. Further research is needed to understand the full extent of Hox genes' role in neuronal migra...
A new study found that low doses of resveratrol mimic the heart-healthy effects of caloric restriction, suggesting a possible explanation for France's low incidence of heart disease. The compound may also promote mitochondrial health and have anti-aging benefits.
Researchers found that low doses of resveratrol, a natural constituent in red wine, mimic the effects of caloric restriction on aging. The study shows that small doses can elicit many benefits as a reduced-calorie diet, including prevention of heart decline associated with aging.
Researchers found that mouse ovaries undergo significant gene expression changes as they age, unlike the limited changes seen in testes. A calorie-restricted diet reversed some of these aging effects, particularly in females.
Researchers have developed fluorescent nano-barcodes that can detect biomolecules with high precision, surpassing existing methods like microarrays. This technology has the potential to accurately diagnose diseases and identify new molecular markers associated with them.
Researchers discover how PRDM16 regulates fat cells to favor brown adipose tissue (BAT) formation, which can help counteract obesity and diabetes. The findings provide insight into the molecular mechanisms behind BAT specification and hold promise for therapeutic treatments.
Research using a rat model of intrauterine growth retardation found reduced Pdx1 expression in pancreatic beta-cells throughout life following IUGR. The molecular mechanisms affecting Pdx1 expression were reversible in the fetus and after birth, but irreversible in adulthood, providing new insight into diabetes development.
Researchers found that slow fetal growth is linked to an increased risk of developing type 2 diabetes in adulthood. They also identified a new gene mutation associated with sudden cardiac death in humans. The study used rat models and human tissue samples to understand the mechanisms behind these diseases.
Researchers have gained insight into the way Cyanothece, a cyanobacterium, regulates its physiological processes through its circadian rhythm. The study found that genes governing vital processes like energy metabolism and nitrogen fixation cycle on and off with changing light and dark periods.
Researchers identified an association between gene expression and response to methotrexate treatment in patients with acute lymphoblastic leukemia. The study suggests that genomic profiling could help predict response to the drug and improve long-term survival, paving the way for new strategies to enhance survival rates.
Researchers at Hospital for Special Surgery discovered a new mechanism involved in the pathogenesis of inflammatory diseases such as rheumatoid arthritis. The study reveals that tumor necrosis factor (TNF) activates macrophages to produce interferon-beta, leading to sustained expression of genes encoding inflammatory molecules.
Researchers found that male yellow jacket paternity has no impact on colony dynamics, with females exhibiting cooperative behavior despite multiple mating. The study suggests a benefit to colonies for queens having multiple partners, leading to increased success and reproductive output.
Mice fed human diet exhibit distinct liver gene expression profiles compared to those on a chimpanzee diet, suggesting dietary influences on physiological differences between humans and other apes. This study replicates previous findings in mice fed different diets.
Researchers at Arizona State University develop a gene detection platform using self-assembled DNA nanostructures, enabling label-free detection of RNA genes in single cells. The technology has potential applications for disease diagnosis and could revolutionize the way gene expression is analyzed.
The Medical College of Georgia Center for Biotechnology and Genomic Medicine has been selected to isolate RNA and DNA from the blood of thousands of children involved in a worldwide study of the causes of type 1 diabetes. The TEDDY study aims to identify environmental triggers for diabetes in children with known high-risk genes.
Researchers discover that lenalidomide and pomalidomide can increase fetal hemoglobin production in people with sickle-cell disease, potentially providing a new therapy. These findings also suggest the possibility of using these drugs to treat other beta-hemoglobinopathies.
Researchers have discovered 156 new likely imprinted genes in the human genome, including those linked to cancer, diabetes, and autism. The findings offer clues to better disease prevention and management.