Articles tagged with Gene Regulation
Researchers developed a new model for comparative genomic analysis, revealing differences in gene regulation between primate species. The Phylogenetic Hidden Markov Gaussian Processes model provides insights into what makes a human a human and has implications for understanding evolution and certain diseases.
A new mechanism has been identified that triggers multiple sclerosis disease through epigenetic regulation, with a protective variant reducing the risk. The study found that people with the major risk variant HLA-DRB1*15:01 have increased expression of the HLA-DRB1 gene, increasing the risk for MS.
A single episode of binge drinking can alter a key gene that regulates sleep, leading to increased non-rapid eye movement sleep and reduced sleep in subsequent periods. This finding may shed light on the link between sleep disturbances and alcoholism in humans.
A study by the University of Helsinki found that IVF can alter embryonic growth, particularly in relation to genetic variation. Children born from frozen embryo transfer had significantly higher birth weights than those born from fresh embryo transfer.
A study has identified genetic variants associated with an increased risk of developing pediatric nephrotic syndrome, a debilitating kidney disease in children. The findings could lead to new diagnostics and treatments.
Researchers have identified a critical non-coding DNA element regulating the Sox9 gene, crucial for male sex development. Deleting this enhancer results in sex reversal in mice, shedding light on the genetic mechanisms underlying sex determination and potentially improving diagnosis for patients with differences in sex development.
Researchers identified plasma lipid species as signatures of healthy or unhealthy metabolic states, including fatty liver disease. They also pinpointed genetic regulators of lipid species and their physiological functions using systems genetics approaches.
A team led by Prof. Stein Aerts uncovers how access to relevant DNA regions is orchestrated in epithelial cells, shedding light on biological mechanisms of gene regulation and potential new avenues for cellular reprogramming. Grainyhead, a pioneer factor, acts as a key that can be used to access specific DNA regions.
Researchers found that mechanical cues contribute to the regulation of gene expression during early development. External pressure can activate or restore the expression of a crucial developmental regulator gene, brachyury. This mechanism is conserved across species, including zebrafish and fruitflies.
Researchers use CRISPR-Cas9 to precisely alter hundreds of genes or features in yeast cells with 80-100% efficiency, identifying gene alterations that trigger or prevent specific behaviors. The approach allows for rapid profiling and identification of key genes and DNA sequence variations associated with traits and diseases.
Rothamsted Research will conduct a field trial of genome-edited (GE) Camelina, a genetically modified crop that accumulates omega-3 fatty acids, alongside a traditional GM version. The trials aim to investigate the efficiency of genetic engineering in developing plants with desired traits, such as improved nutrition and sustainability.
A new drug has been found to reduce symptoms and activate dormant neurons in preclinical models of Rett syndrome, a genetic disorder causing intellectual disability. The treatment, SB216763, also shows promise in improving quality of life by lengthening lifespan and reducing tremors and breathing difficulties.
Researchers at Stowers Institute for Medical Research discovered a global regulatory element within the Hoxb cluster that controls its expression in blood-forming stem cells. This mechanism helps maintain normal hematopoiesis and prevents acute myeloid leukemia by regulating Hoxb cluster genes in a methylation-dependent manner.
A genetic 'dial' controlling body size has been discovered in pigs, with decreased size observed at varying levels of gene expression. The study found that pigs with normal gene expression were average-sized, while those with one copy expressed had a 25% reduction and those without any expressed had a 75% reduction.
A study published in PNAS found that genes regulating immune system and metabolic processes fail to adapt to new sleep patterns caused by night shifts. Eight healthy volunteers were subjected to a five-day schedule simulating night shift work, showing that almost 25% of rhythmic genes lost their biological rhythm.
A recent study found that erythropoietin (EPO) helps protect and repair vulnerable preterm brains by modifying genes essential for neurogenesis. The research, conducted at Children's National Hospital, identified five key genes involved in the development of the nervous system and responding to environmental stressors.
Researchers have identified 35 regulatory regions that can distinguish between ulcerous colitis, Crohn's disease, and control subjects with high accuracy. This breakthrough may open new avenues for improved diagnostic methods.
A Danish-German research team has identified a novel long non-coding RNA, A-ROD, that enhances the production of specific proteins with involvement in cancer. The RNA functions as a lasso that brings transcription factors to specific sites in DNA to enhance gene expression.
Researchers identified Histone Deacetylase 7 (HDAC7) as a potential target for new autoimmune disease treatments. The study found that altering HDAC7 function in mice can cause autoimmune diseases, while also improving symptoms when the gene is restored.
A study identifies genetic variants related to consonant processing, dyslexia, and reading performance. Variations in the READ1 sequence are tied to modern human-specific changes acquired between 4 million and 550,000 years ago.
A recent study found that gene regulation by protein transcription factors is the most likely mechanism for generating evolutionary change. This discovery challenges previous assumptions and sheds light on the process of evolutionary adaptation.
Researchers at The Wistar Institute have found that HDAC inhibitors can suppress proliferation and induce programmed cell death in ovarian cancer cells with ARID1A gene mutations. This new treatment approach has therapeutic potential, slowing tumor growth and improving survival rates in mouse models.
Researchers at EPFL discovered that the circadian clock orchestrates gene expression by regulating chromatin structure, affecting protein synthesis and physiological processes. The study found that promoter-enhancer looping oscillates along the 24-hour cycle, controlled by the circadian clock.
Researchers at UCLA have identified two genes associated with hyperemesis gravidarum, a severe form of nausea and vomiting during pregnancy. The genes, GDF15 and IGFBP7, are linked to appetite regulation and placenta development.
A team of University of Tsukuba researchers uncovered the essential role of a specific gene region in regulating blood pressure homeostasis. By deleting certain regions of the renin gene, they found that one particular region, known as -5E, plays a crucial role in the basal expression of the gene.
Researchers applied quantum machine learning to a real-world biological problem, predicting the strength of binding sites for transcription factors. The study demonstrated the potential of quantum computing for biology, with results consistent with current understanding of gene regulation.
Researchers identify 15 patients with mutations in the PUMILIO1 gene, revealing a link between protein regulator levels and disease severity. The study suggests that identifying protein regulators could single out new candidates for disease-causing genes and open new avenues for novel therapeutic strategies.
Researchers discovered five new regions in the human genome associated with increased pancreatic cancer risk, including variants in genes that regulate cell growth and tumor suppression. The findings may lead to more targeted treatments and early detection screening for pancreatic cancer.
Scientists at the University of Freiburg discovered RNase E as a crucial enzyme in CRISPR/Cas systems, enabling correct gene expression and immune defense. The findings suggest stronger interaction between CRISPR/Cas systems and host organisms, increasing potential for its applications.
The active genetics technology has been used to edit gene regulatory elements in fruit flies, revealing new fundamental mechanisms controlling gene activity. The researchers provided experimental validation for using active genetics as an efficient means for targeted gene insertion and single-step replacement of genetic control elements.
A new hypertension disease gene has been identified by Ute Scholl's team, which alters blood pressure regulation. The study focused on familial hyperaldosteronism type II, an inherited condition causing high blood pressure due to overproduction of aldosterone.
A genome-wide analysis reveals that variations in gene enhancers and promoters contribute to species differences, with larger enhancer ensembles linked to stable expression levels. The study provides insights into evolutionary conservation and the impact of genetic regulation on behavior and morphology.
A team of Japanese researchers has identified Sirt2 as a key player in regulating hepatic glucose uptake, which is impaired in obesity and type 2 diabetes. The study found that Sirt2 regulates the dissociation of glucokinase from its regulatory protein, GKRP, through post-translational modifications.
Researchers found a genetic mutation that alters limb shape by changing the regulation of a specific gene. This discovery provides evidence for how interchromosomal translocations can lead to morphological alterations.
Researchers identified mechanisms driving 10% of high-risk neuroblastoma cases and showed c-MYC hijacks DNA to drive its own expression. The findings may help develop more effective therapies, including precision medicines. High-risk neuroblastoma has a poorer prognosis, but the study provides new insights into its development.
A study by UNIGE and UNIL researchers found that individuals with Down syndrome have an excellent genome, better than the average genome of people without the genetic abnormality. This high-quality genome may compensate for the disabilities caused by the extra chromosome 21, enabling some fetuses to reach full term and grow up to old age.
Researchers at the Centre for Genomic Regulation found that genome architecture influences gene expression during cell reprogramming. The study reveals that transcription factors promote chromatin changes before gene activation, suggesting a new role in controlling cell fate.
The HLF gene plays a crucial role in maintaining blood stem cells in a resting state, protecting them from exhaustion and external damage. This study provides new insights into the regulation of blood stem cell activity and its potential applications in bone marrow transplants.
A research team from HKBU has developed a new technology to accurately establish a gene regulatory route for analyzing genetic function and understanding complex biological events. The 'LogicTRN' algorithm can help locate key regulatory routes for complicated diseases, facilitating targeted therapy drug development.
A study at Queen Mary University of London reveals a new gene, MAFA, that affects insulin-producing cells, leading to rare genetic forms of diabetes and insulinomas. The research found that the same gene defect can cause both high and low blood sugar levels in the same family.
UCLA researchers have developed a map of gene regulation in human neurogenesis, identifying factors that govern brain growth and set the stage for brain disorders. The study reveals key genes involved in neurogenesis and their roles in human cognition.
Researchers found that mutations in two components interact with each other, increasing the system's freedom to change and evolve. The study provides a mechanistic understanding of how genetic structure determines patterns of epistasis.
Researchers found that overexpressing FKBP1b restored gene expression in hippocampal neurons, improving water maze performance and reversing age-related memory impairments in rats. The study suggests addressing FKBP1b deficiency may be a new avenue for countering age-related memory loss.
A team of scientists found that supercoiling powers the movement of cohesin protein complex along chromatin fibers, a key piece in understanding gene expression regulation. This discovery establishes a new chemo-mechanical process in chromosomes shaping optimal gene regulation through structural arrangements.
Researchers found that SHARPIN increases PRMT5 activity, boosting transcription factors that contribute to melanoma growth. SHARPIN acts as a counterbalance to reduced PRMT5 activity in tumors with deleted genes.
A new study provides insight into the CLOCK gene's vital role in regulating human-specific genes important to brain evolution. The findings suggest that CLOCK regulates genes linked to cognitive disorders and has an important role in human neuronal migration, a process crucial for brain development.
Researchers have discovered a novel mechanism to reactivate gene expression in mouse embryonic stem cells without causing DNA damage. The new pathway involves enzymatic oxidation of the methyl group attached to cytidine, converting it into 5-formylcytidine, which is then rapidly converted back into unmethylated cytidine.
Researchers found genes associated with B cell receptor signaling and activation in tolerant kidney transplant recipients, suggesting an active immune regulation of B cells. The study provides insights into the mechanisms behind tolerance induction in renal transplantation, potentially leading to minimization of immunosuppression.
Researchers have found that zebrafish can survive despite mutations by using workarounds such as regulating expression of related genes or skipping errors in DNA transcription. This study provides guidelines for designing targeted mutations and accelerating the development of diagnostics and therapeutics for human diseases.
Researchers at Osaka University have found a key gene responsible for the development of male and female traits in an ancient crustacean. The study reveals how this gene, doublesex1, is expressed differently in males and females, leading to distinct sex-specific characteristics.
Researchers have identified key genes that regulate water-efficient photosynthesis in pineapple and other CAM plants. This breakthrough could lead to improved water use efficiency in C3 crops, allowing them to thrive in environments previously inhospitable to them.
Researchers develop RNA Capture Long Seq (CLS) method to map non-coding DNA regions, improving gene catalogues for long non-coding RNAs. The new method enhances genomic databases like GENCODE, enabling better understanding of genomic function and its impact on health and disease.
Researchers at the University of Zurich have discovered a crucial mechanism for epigenetic gene regulation, involving the DNMT3A enzyme. This finding provides new insights into the development of aggressive types of leukemia and may lead to more effective treatments.
Researchers used CRISPR/Cas9 to insert UCP1 gene in pigs, reducing fat deposition and increasing lean meat production. The findings have potential implications for animal welfare and production efficiency in the pork industry.
The VA National PTSD Brain Bank is a resource aimed at providing answers to the complex nature of posttraumatic stress disorder. The bank supports research on the causes, progression, and treatment of PTSD by storing tissue from brains of individuals with PTSD.
Researchers at Northwestern University have developed a powerful RNA switch that can activate genes thousands of times better than nature, providing precise control over gene expression. This technology has potential applications in diagnostics, metabolic engineering, and regulating RNA networks.
Researchers found duplications of noncoding DNA that may explain genetic contributions to human disease and evolution. These duplications, which include regulatory sequences, may have impacted the expression of genes nearby or elsewhere in the genome.
Researchers have developed a mechanistic model for how healthy bodies function and identified key genetic variants that contribute to complex diseases. The study, co-led by Princeton University scientists, used multi-tissue data from over 449 donors to map associations between genetic variants and gene expression levels.
Researchers discovered an evolutionary conserved sequence motif in mammalian genomes that regulates class I odorant receptor genes, a novel mechanism of expression. The J element controls the selective expression of these genes, highlighting its importance in understanding gene regulation and disease.
Researchers identify DLX5 gene as key player in preeclampsia, a complex disease affecting 4% of pregnancies. An in vitro model demonstrates the disorder's dysregulation and opens door to new treatments.