Articles tagged with Gene Expression
Researchers found that roughly 15% of genes are expressed differently among male salmon of the same species, depending on their life history. The findings suggest that the 'default' life cycle may result from active inhibition of development into a sneaker male.
Research at Cold Spring Harbor Laboratory explores novel approaches to preventing muscle atrophy by optimizing exercise and nutritional interventions. The study highlights the importance of combining resistance training with specific nutrient profiles to maintain muscle mass and function.
Researchers identified 277 human genes with different expression profiles in stem and progenitor cells involved in blood cell development. The new method allows for functional validation of high-throughput gene expression analysis, with potential applications beyond blood development.
Researchers identified a unique genetic pattern in 8 women over 45 who conceived spontaneously, involved in apoptosis and DNA repair mechanisms. This genetic predisposition may help protect against age-related ovary damage, allowing some women to remain fertile until menopause.
A recent study found that homemade gene expression technology is less reliable than commercial microarray platforms. The research, led by OHSU scientist Peter Spencer, used standardized protocols to compare lab-built and commercially produced microarrays, showing improved reproducibility with commercial platforms.
A recent study published in Nature Methods found that different microarray systems are more alike than previously thought, yielding comparable results when used properly. The study involved 10 laboratories using various platforms and showed that with proper methods and reporting, the results can be reliable across different platforms.
Researchers found a unique brain cluster called Cluster N that is active at night but dormant during the day, indicating a specialized night-vision system. This adaptation enables birds to navigate and fly during their nocturnal migrations.
The study found that standardized processes and commercially manufactured microarrays lead to more consistent results. This standardization can improve clinical practice, including personalized medical treatments for diseases like breast cancer.
Researchers identified 45 genes linked to leukemic cells' ability to resist treatment by at least two of the most widely used antileukemic drugs. The study found a poor prognosis for patients with cross-resistant ALL cells.
Researchers created a platform technology that can be adapted for various tissue types and preclinical uses, enabling real-time monitoring of gene expression. This approach uses magnetic resonance imaging (MRI) to non-invasively image cells at high resolution, providing insights into disease mechanisms.
Professor Magloire has made significant contributions to odontoblast biology, including characterizing replacement populations and developing novel culture systems. His research has shown the role of TGFβ and new gene profiles involved in odontoblast differentiation and mechanosensitivity.
Researchers found that glycyrrhizic acid from licorice can kill cells infected with the Kaposi sarcoma-associated herpesvirus. The compound targets genes required to maintain the virus in a latent state, potentially leading to novel anti-herpesvirus agents.
The new version of GenMAPP 2.0 incorporates various features to organize and analyze gene expression data on biological pathways, including a flexible format accepting multiple gene ID systems and species-specific databases. This update complements hierarchical clustering methods and enables convenient display of data on web sites.
Scientists have identified a way to detect gene expression changes in fetuses using cell-free mRNA from amniotic fluid, potentially leading to advancements in human developmental research and biomarker development. The study found that the mRNA originates from the fetus, not the placenta.
Research suggests that alcohol alters gene expression in the brain, contributing to addiction symptoms like tolerance and physical dependence. Gene expression profiling has identified specific genes and pathways involved in alcohol's effects on different brain regions.
Researchers have created a new tool to investigate the components of the circadian clock in vertebrates using transgenic zebrafish that luminesce in sync with their periodicity. The study reveals that aspects of circadian rhythms develop in specific stages, rather than being hardwired into the embryo.
Researchers found that blocking CCL2 eliminates foreign body giant cells, protecting implants from damage. This discovery paves the way for a new class of therapeutic drugs to sustain implants and improve their functionality.
A new genetic mechanism has been identified linking diet to breast cancer, with excess omega-6 fats accelerating the disease. The study found that four genes, including one with unknown function, are involved in this effect, highlighting the importance of a balanced fat intake.
Researchers found that DksA is crucial for regulating gene expression in bacteria, enabling them to survive and resist antibiotics. By targeting this protein, scientists may develop novel antibacterial drugs that reduce resistance.
Researchers at Cold Spring Harbor Laboratory discovered a lean gene, C/EBPbeta, which helps mice live longer and weigh less. The gene's activation may help jump-start metabolism in fat cells, preventing fat accumulation. Another study found that targeting the JIP1 protein can effectively protect against obesity and insulin resistance.
A team of scientists at UNC School of Medicine is investigating the molecular basis of blood vessel aging and its role in cardiovascular disease, including heart attack. New information gleaned from this basic research could offer new treatment strategies for cardiovascular disease.
Researchers found significantly impaired development in cloned embryos, making reproductive cloning unsafe for humans. The study suggests various factors, including fertility medications and in vitro culture conditions, may contribute to abnormalities.
Researchers discover that Kaposi's sarcoma virus can reprogram blood vessel endothelial cells into lymphatic cells, driven by the gene Prox1. This finding provides a potential target for new therapies against the disease.
Researchers discovered that stable expression of small interfering RNA sensitizes TEL-PDGFbetaR to inhibition with imatinib or rapamycin. This finding suggests a new approach for treating cancer by targeting specific genes.
Researchers found that natural killer cells are associated with destructive insulitis and beta cell destruction, suggesting a potential new target for halting or slowing disease progression. The study's findings have implications for understanding the complex interactions between immune cells and the development of type 1 diabetes.
A study found that morbidly obese patients experience increased minimal distending pressure and exaggerated gastric accommodation during meals, leading to overeating and weight loss challenges. Researchers suggest addressing biological barriers differently through surgery or alternative methods.
Researchers found an inverse correlation between Rb2 expression and VEGF in liver tumors. The study suggests that lower Rb2 expression and higher VEGF levels can predict the aggressiveness of liver cancer, regardless of tumor stage.
A new study separates and purifies normal luminal and myoepithelial cells from breast tissue, revealing distinct gene expression profiles. This dataset enables the discrimination between genetic changes due to cell type differences and cancer, leading to more accurate tumor classification and potential new therapeutic avenues.
A study published in Cell found that genetic defects in Nkx2-5 lead to progressive heart failure by degrading the electrical wiring of the heart, particularly the atrioventricular node. The researchers also identified a growth-factor gene called BMP-10 as a key contributor to this process.
Researchers developed a multi-gene molecular expression assay test to identify the quiescent state after heart transplantation and predict future occurrence of rejection. The test can help manage transplant patients' immunosuppression regimens and reduce discomfort during constant monitoring.
A large international consortium has successfully annotated over 21,037 human genes using publicly available resources. The study provides a reliable systematic network of human-curated relationships between genes and their biological functions, setting the standard for analysis of gene expression and human diseases worldwide.
Researchers developed a preoperative diagnostic test that uses gene expression to distinguish between benign and malignant thyroid carcinoma. The test has the potential to improve diagnosis accuracy and treatment outcomes for patients with thyroid cancer.
Researchers at the University of South Florida have developed a biosensor-regulated gene therapy that protects heart muscle cells from further injury after a heart attack. The therapy uses an oxygen-sensitive switch to turn on protective genes, which were shown to limit tissue scarring and improve heart function in mice.
Jefferson researchers have discovered a unique genetic signature for colon stem cells, which could lead to a better understanding of colon cancer development. The study found that specific genes are selectively expressed in the bottom of crypts, where stem cells reside.
Researchers identified gene expression profiles associated with short-term and long-term outcomes in adult T-ALL patients. A three-gene model was found to be highly predictive of remission duration, offering new hope for customized treatment plans.
Dr. Paul Sharpe has received the 2004 Craniofacial Biology Award for his pioneering work in vertebrate body patterning and the molecular basis of tooth development. His contributions to the field have been widely accepted by the scientific community, recognizing his significant impact on craniofacial biology.
Researchers discovered that Ozz-E3 ligase is essential for the correct assembly of sarcomeres, which disrupts muscle formation. The study also found a close link between PPCA and Ozz genes, potentially explaining why some children with severe neurodegenerative disease suffer from muscle disorders.
A new study overturns previous findings on sex-related genes, showing that they escape from the X chromosome during germline cell division. The research team proposes two explanations for this phenomenon, which contradicts the conventional theory of the X chromosome being a 'hot bed' for sex-related genes.
Researchers at the University of Wisconsin-Madison have identified a key gene that regulates flowering in biennials, such as carrots and cabbage. The discovery could lead to new methods for manipulating crop productivity and understanding how organisms control cell fates during development.
Researchers found decreases in genes producing growth hormone and prolactin, key to development and immune system function, in aged mice compared to young mice. This suggests specific genetic changes in the cerebellum area of the brain may contribute to loss of motor control and balance with age.
Researchers have found significant decreases in growth hormone and prolactin gene expression in the cerebellum of aged mice, suggesting a possible link between these hormones and age-related declines in motor control and balance. Further study is needed to understand the role of genetic pathways in aging.
The GenSAT project offers a fully public, searchable database of gene expression in central nervous system cell types for individual genes. Researchers can analyze up to five genes per week using the Gensat platform.
Researchers identified 25 genes involved in termite caste development, including muscle function and cellulase production. Treatment with juvenile hormone can convert worker termites into soldiers, potentially leading to colony decimation.
A new study found that gene expression is robustly associated with behavior in adult honey bee brains, revealing a dynamic genome involved in modulating behavior.
Scientists discovered a single gene, PHAN, that regulates leaf shape in plants. The study found similar patterns of PHAN gene expression and leaf shape in over 500 plant species, suggesting a limited number of ways to change leaf shape.
Researchers have identified a gene called Foxa-2 that is switched on only in the fat cells of obese mice. This gene acts as a brake to slow down further fat production and storage. In pre-adipocytes, Foxa-2 activates genes important for insulin sensitivity, providing an ideal combination for treating obesity and type 2 diabetes.
Researchers developed a new method to assess breast cancer patients' prognosis by analyzing 185 genes. The study found that tumors with specific gene expressions can predict long-term survival, even among women with multiple positive nodes.
A new study in rats reveals that gene activity plays a significant role in brain aging and cognitive impairment. The research identified 146 genes associated with age-related changes in memory performance, including those involved in inflammation, oxidative stress, and neuronal function.
Researchers have developed a novel method to correct genetic mutations causing abnormal splicing, potentially treating genetic diseases such as spinal muscular atrophy. This technique uses short RNA oligos to recruit signals that influence splicing, allowing proper gene expression and normal cell development.
A new study suggests that the brain's language centers may be identified using the genetic expression of certain brain receptors in vocal-learning birds and mammals. The research, led by neurobiologist Erich D. Jarvis, reveals a highly specialized pattern in the genetic expression of these receptors in songbirds capable of vocal learning.
A team of researchers has found that Trichostatin A significantly reduces excess protein in urine and spleen weight in mice with systemic lupus. The compound may have therapeutic benefits for humans with the disease, which affects up to 70% of lupus patients.
Researchers found that healthy individuals vary in gene expression levels in circulating blood cells, with some genes used at varying levels depending on time of day and age. Despite these differences, the study revealed remarkable similarity in the genes used among the subjects.
A study of 74 patients with non-classic cystic fibrosis revealed that nearly a third had no detectable changes in their CFTR genes, sparking debate about the role of epigenetics and alternative causes. The findings may lead to improved diagnosis and treatment options for these patients.
Researchers at UT Southwestern Medical Center have discovered a protein called Homeodomain-Only Protein (HOP) that regulates heart growth from fetal stage to adulthood. HOP helps control the balance of cardiac cell proliferation and differentiation, with disrupted levels leading to abnormal heart development.
Researchers found that human embryonic germ cells and their specialized daughter cells maintain correct 'imprinting,' a way cells determine gene expression. This is critical information for the safe clinical use of these cells in treating diseases.
A study identified three gene expression patterns correlated with survival after chemotherapy, which outperformed the International Prognostic Index. The patterns revealed aspects of tumor biology affecting treatment response, including immune system involvement and tumor cell division.
A study found that hereditary BRCA1 and BRCA2 ovarian cancers have similar gene expression profiles to sporadic ovarian cancers. The research suggests shared molecular mechanisms between hereditary and sporadic ovarian carcinogenesis exist.
Researchers analyzed gene expression profiles from thousands of lymphoma biopsy samples to identify predictive genes that can predict patient response to treatment and survival rates. The study found that a formula created from 17 key genes could accurately classify patients into four groups with varying five-year survival rates.
Researchers aim to find new targets in the brain to prevent and treat Alzheimer's and Parkinson's diseases using Serial Analysis of Gene Expression (SAGE) technology. The $2.75 million funding will support Columbia University's technology transfer and commercialization efforts.
Researchers found that diabetes causes a phase shift in the heart's circadian clock, leading to changes in gene expression and potentially disrupting the synchronization between stimulus and response. This alteration may contribute to contractile dysfunction and increased risk of heart failure in patients with diabetes.