Articles tagged with Gene Regulation
Researchers at Max Planck Institute for Chemical Ecology sequenced the antennal transcriptome of the tobacco hornworm moth, revealing specific proteins involved in olfaction. The study identifies 18 odorant binding proteins and 21 chemosensory proteins, providing new insights into the insect's ability to detect and process odor molecules.
A study of over 47,000 people found that a genetic variation in the AUTS2 gene is associated with lower alcohol consumption, suggesting its role in regulating drinking behaviour. The researchers also investigated animal models and found that blocking a related gene increased sensitivity to alcohol.
Scientists developed a new method, GROMIT, to study gene regulation by employing a jumping gene as an informant. The technique revealed that each regulatory element can control a broader range of genes than previously thought, and expression levels are fine-tuned at the tissue level.
A protein complex called MSL amplifies the X chromosome in males, allowing enzymes to express genes more freely. This process helps correct the genetic imbalance between X and Y chromosomes in males.
Scientists identified two distinct repressor proteins that use different molecular mechanisms to halt gene expression during development. This study may hold the key to explaining how diseases like cancer and diabetes are caused by genes unable to shift gears properly. By understanding these mechanisms, researchers can begin to see how...
To solve the world's food problems, agriculture needs to use resources more efficiently by integrating various sectors and adopting innovative methods. Researchers are exploring ways to grow crops in areas that were previously unused, such as using wastewater to irrigate and fertilize fruit and vegetables.
Researchers found a gene called RORA that plays a critical role in brain development and is affected by sex hormones. In individuals with autism, aromatase conversion of testosterone to estrogen is reduced, leading to increased male hormone levels and decreased RORA expression.
Researchers at North Carolina State University have discovered a gene associated with the immune system that is overexpressed in placentas of women with preeclampsia, leading to a better understanding of the disorder. The finding may lead to improved screening and prenatal care for these patients and their babies.
Researchers discover that selective activation of nonclassical ER-alpha signaling may help reduce postmenopausal obesity risk by normalizing energy balance. The study found that this type of estrogen signaling is crucial for regulating body weight and preventing metabolic disorders.
A study by Mayo Clinic researchers identifies LRP1, a lipoprotein receptor, as a co-receptor with the leptin receptor that regulates appetite and metabolism. Mice engineered to lack LRP1 gained weight and became obese, indicating its critical role in lipid metabolism and energy balance.
Researchers at Stanford University School of Medicine have identified over 2,000 genetic regions, called enhancers, that trigger gene expression in human embryonic stem cells. These enhancers play a crucial role in regulating cell-type-specific gene expression during early development.
Vivian Cheung, a geneticist at The Children's Hospital of Philadelphia, received the Curt Stern Award for her pioneering work on human gene expression and its impact on disease risks. Her research has transformed the scale of human genetic studies, enabling researchers to analyze thousands of genes simultaneously.
An international study identified 30 genes controlling puberty age and found they also play a role in fat metabolism, linking early maturity to increased obesity risk. The study of over 100,000 women from Europe, US, and Australia highlights the complex biological processes controlling puberty timing.
Scientists have discovered 30 new genes that control the age of sexual maturation in women, which also affect body weight regulation and fat metabolism. The study found associations between these genes and early menarche, as well as increased risk of health problems like obesity, type 2 diabetes, and cardiovascular disease.
A multinational team identified a novel retinal disease gene, FAM161A, linked to RP28-associated recessive retinitis pigmentosa through ChIP-Seq analysis with Genomatix Genome Analyzer. The study provides new insights into visual perception and opens potential therapy avenues.
Researchers found that overexpressing TRIB1 in the liver decreases lipid production, while lack of Trib1 increases it. This suggests TRIB1 regulates lipid metabolism in the liver.
A study published in the Journal of Affective Disorders suggests that depression is associated with increased activity of the Clock gene, which regulates circadian rhythm. This finding could lead to personalized treatment approaches for people with depression, such as light therapy or antidepressants targeting melatonin.
Researchers at the Allen Institute have published a comprehensive study on the effects of sleep deprivation on gene expression in the mouse brain. The findings reveal novel genes and brain areas affected by sleep deprivation, providing potential targets for therapeutic intervention.
A NIH study identifies 18,000 promoters and 34,000 distal regulatory elements that regulate genes in human pancreatic islet cells. These findings may contribute to a better understanding of the molecular defects underlying type-2 diabetes.
Researchers have identified a new agouti family gene that regulates pigmentation and body weight in fish. The protein enables fish to dramatically change color to match their environment, a phenomenon also observed in mammals such as the arctic hare.
Researchers at The Wistar Institute found that the three-dimensional structure of a genome exposes genes to regulation and chromosomal crosstalk. This structure positions groups of related genes near each other, allowing for efficient operation of genetic processes.
The National Science Foundation has awarded $101.9 million in new grants to advance knowledge of genome structure and function, focusing on economically important crop plants such as corn, cotton, and soybean. The projects aim to improve the quality and yield of these crops and support the bio-based economy.
Dr. Noam Shomron's new method uses genetic expression of microRNAs to optimize individual patient care and predict adverse drug effects, leading to safer and more effective treatment options.
A patchwork of reproductive health regulations across Europe hinders access to medically assisted reproduction (MAR) treatments. Many patients resort to seeking care abroad due to limited availability and reimbursement policies.
Advanced gene modification methods for cellulosic biofuels are being restricted due to stringent regulations, hindering the development of this promising renewable energy source. The researchers argue that a more intelligent regulatory system is needed to enable the use of gene modification technology and accelerate breeding progress.
Researchers identify key genes that allow fruit flies to differentiate between smells, enabling the development of more effective insect repellents. By understanding how these genes are regulated, scientists can target similar genes in other insects to create substances that repel pests.
A new computational method, ChIP Enrichment Analysis (ChEA), helps streamline gene expression experiment analysis and identifies potential drug targets. The database integrates results from ChIP-seq and ChIP-chip experiments, providing a better understanding of transcription factor regulation and disease development.
Researchers found that starvation allows the need for nourishment to push aside the need for sleep in fruit flies. The ability to resist sleep loss was linked to a protein involved in lipid processing.
A recent study has discovered that even brief periods of light exposure can significantly impact a fungus's biological functions, including reproduction, pigmentation, DNA repair, and stress response. The research also found that specific metabolic pathways can be directly activated by light in this fungus.
A human study found an association between dysregulation of circadian clock genes and chronic drinking. Lower levels of mRNA in these genes were observed in alcohol-dependent patients, indicating disrupted circadian rhythm.
Researchers found a unique genome structure formed by protein complexes that regulate cell-type-specific genes, leading to developmental diseases. Deficiencies in these complexes can cause syndromes like Opitz-Kaveggia syndrome and schizophrenia.
Researchers identify a critical lincRNA-p21 that suppresses multiple genes across the genome following p53 activation, playing a key role in mediating cellular response to DNA damage. This discovery opens up new avenues for understanding gene regulation and developing anti-cancer therapies.
Researchers have identified a gene that regulates the disassembly of primary cilia in living organisms, leading to defects in left-right asymmetry and organ function. The study provides new insights into the molecular basis of ciliary diseases, which affect multiple organ systems and can lead to severe clinical symptoms.
Researchers identified a gene regulatory link between early brain development and aging, suggesting 'runaway' development may be detrimental. This process is observed in both humans and macaques, with the latter experiencing accelerated rates, potentially limiting their lifespan to one-third that of humans.
Scientists have discovered a new epigenetic mechanism by which AMPK regulates gene expression, allowing direct control of cellular processes such as sugar storage and insulin production. This finding holds promise for the development of new therapies for diseases like diabetes and cancer.
Researchers at VIB's Jean Jeener Bio-NMR Center discovered how bacterial proteins regulate stress response via dynamic allostery, a previously theoretical concept. This breakthrough uses NMR technology to visualize protein folding and conformational changes.
Researchers from Warwick University isolated a gene responsible for regulating CONSTANS expression, a key inducer of flowering in Arabidopsis. The discovery could enable more predictable flowering and better scheduling of crops.
Researchers at Johns Hopkins University discovered NFI-A's role in protecting nerve cells from death due to neurologic disorders and stroke. Knocking down NFI-A reduced the neuroprotective effects of sublethal doses of NMDA, supporting its central role in nerve cell survival.
Researchers identified two genes, leucokinin neuropeptide and receptor, that regulate meal sizes and frequency in fruit flies. In normal flies, the stretch receptors signal to the brain when the gut is full, but in mutants or brain center destruction, this signal is not relayed, leading to excessive eating.
Researchers identified microRNA-33 as a crucial regulator of cholesterol pathways, suppressing the production of HDL and clearing cholesterol from peripheral tissues. The study suggests that targeting this pathway could lead to new treatments for cardiovascular diseases.
A study published in Experimental Biology and Medicine found that the Ash2l protein is crucial for early mammalian development, with mouse embryos dying without it. The researchers discovered that Ash2l interacts with Tbx1 to regulate gene transcription, shedding light on the pathogenesis of DiGeorge syndrome.
Intestinal ischemia/reperfusion damages the intestine's lining, allowing bacteria to enter the bloodstream. Caveolin-1 modulates endothelial nitric oxide synthase activity to regulate innate immunity. Development of intestinal lymphoid follicles relies on dendritic cell recruitment.
A team of researchers will investigate how chromosomes untangle to expose genes that give cells their biological traits. They will tackle three independent projects: disassembling nucleosomes to reveal gene DNA, understanding protein facilitation of assembly and disassembly, and studying nucleosome movement in living yeast cells.
Scientists developed a new computational model to identify targets of regulator genes in the human genome. The method combines biochemical and probabilistic modeling to uncover physical models of cell regulation, offering promise for improving understanding of biological systems.
Researchers identified 158 human genes targeted by herpesvirus miRNAs, which regulate host gene expression and evade the immune system. The study provides insights into viral miRNA functions and suggests potential targets for innovative antiviral agents.
Researchers have discovered that microRNAs can move from one cell to another, influencing the development of plant tissues. This mobility allows them to regulate gene expression and play an important role in sharpening the boundaries between different plant tissues.
A genetic study has pinpointed the role of LIN28B in regulating height growth from birth to adulthood in a complex and sex-specific manner. The research found that two variants of the gene influence growth, with one having a more prominent effect on males.
Scientists have identified a crucial role for RNA molecules in regulating brain development and experience-driven synaptic connections. These 'enhancer RNAs' intensify genetic activity, enabling new neural links and potentially informing therapies for disorders like autism.
Researchers discovered that transcription factor binding sites are not conserved across 300 million years of evolution. Despite this, these proteins still regulate liver-specific genes in vertebrates. This study highlights the plasticity of gene regulation and its implications for disease mechanisms.
A study published in Experimental Biology and Medicine found that phenytoin modulates gene expression in rats with bipolar disorder, including genes involved in neurotransmission and neuroprotection. The findings suggest that chronic phenytoin administration may have mood-stabilizing effects.
Researchers identified differences in transcription factor binding to DNA that affect gene expression in different people. Variability in these regulatory regions can influence disease susceptibility and gene product levels.
Researchers at EMBL and Yale found that up to a quarter of human genes are regulated differently in people, with variations in non-coding regions and protein interactions contributing to these differences. This new understanding may lead to novel approaches for studying diseases and personalizing treatments.
A team of researchers has developed a computer model reproducing population-level variation in complex structures like teeth and organs. The model shows that regulation of tooth development is already well known, with a simple basic formula behind the complex gene puzzle resulting in tooth formations.
A study identifies HuR as a critical regulator of an inflammatory response in cells experiencing mechanical and chemical stresses, promoting the expression of genes that support atherosclerosis. Reducing HuR levels inhibits the inflammatory response and may lead to new treatments for metabolic diseases associated with inflammation.
Researchers have identified 60 small RNA particles (sRNAs) in Helicobacter pylori, a surprising finding given the pathogen's previously thought lack of sRNAs. The discovery could provide new insights into gene regulation and potentially lead to the development of a vaccine against H. pylori.
Researchers have identified calcineurin as a critical enzyme in controlling normal development and function of heart cells. The near total absence of calcineurin leads to heart arrhythmia, failure and death in genetically modified mice.
A new study reveals that chromatin proteins defective in RTT, CdLS, and ATR-X syndromes are associated with each other and regulate imprinted genes. This cooperation may explain similarities between the associated human syndromes.
Researchers at Dartmouth College have discovered a protein structure controlling Vibrio cholerae's virulent nature. A fatty acid found within the protein appears to inhibit its function, preventing the bacteria from causing life-threatening diarrhea.
Researchers at Salk Institute found that nucleoporins, proteins in nuclear pore complexes, act as transcription factors regulating genes during early development. They also offer new insights into cancer mechanisms and potential markers for causes of cancer.
Researchers at the University of Michigan have shown that small mechanical forces can control gene expression by reducing DNA looping, a common mechanism for gene regulation. The study provides new insights into how cells regulate themselves and could lead to new understandings of diseases such as cancer and cardiac disease.