Articles tagged with Transgenic Mice
A new transgenic mouse model produces both essential omega-3 and omega-6 fatty acids on a carbohydrate diet. The Omega mouse has been bred to produce mice that express both genes, leading to significant increases in omega-3 levels and decreases in omega-6, with implications for human health.
A transgenic mouse model was created with the K141N mutation in HSPB8 to study Chinese Charcot-Marie-Tooth disease type 2L. The mice exhibited decreased muscle strength and impaired motor coordination, but not sensory disturbance. Pathological analysis revealed reduced myelinated fiber density and axonal damage.
Researchers found that bank vole PrP is a universal acceptor for prions, making it an intrinsic property of the protein. This discovery has broader implications for understanding prion disease transmission and developing strategies to prevent its spread.
Researchers at UGA have developed the world's first transgenic mouse model with Hirano bodies, which may play a protective role in the progression of neurodegenerative diseases such as Alzheimer's. The new model will allow scientists to study the impact of Hirano bodies on cell survival and disease progression.
Researchers at Albert Einstein College of Medicine have prevented age-related decline in liver function and shown that maintaining efficient protein clearance can help stave off functional losses. The study suggests therapies to boost protein clearance might help maintain healthy lives well into old age.
Researchers developed a treatment strategy for hereditary inclusion body myopathy, a rare muscle disease, based on clues from transgenic mice. The approach also may benefit patients with certain kidney disorders.
Researchers have developed a new breed of transgenic mice with autoimmune responses similar to human RA patients, revealing a significant sex bias. The study found that female mice developed arthritis at a higher rate than male mice, exhibiting all disease hallmarks at higher levels.
Researchers at Origen successfully culture primordial germ cells from chicken embryos, introducing genetic elements into the chicken genome. This breakthrough enables efficient and cost-effective production of human protein therapeutics in eggs, with potential applications for treating cancer and other diseases.
A study reveals that variant Creutzfeldt-Jakob disease can be transmitted to humans with specific genetic variations, including methionine/valine (MV) and valine (VV), suggesting a significant public health issue. The transmission rate varies among these genotypes, with VV mice showing the highest susceptibility.
Karen Duff, a young British scientist, received the Potamkin Prize for her innovative work on developing transgenic mouse models of age-related human brain diseases. Her research has led to significant advancements in understanding Alzheimer's disease and identifying potential treatments.
UCI researchers found a compound, AF267B, reduces hallmark lesions and improves cognitive function in genetically modified mice. The compound mimics the effects of acetylcholine and binds to M1 receptors, preventing beta-amyloid production and accumulating tangles.
Researchers found that Bcl-xL, a protein that prevents cell death, can encourage tumor growth in mice. Higher levels of Bcl-xL were linked to increased tumor development and tissue injury in studies on lung and liver damage.
A new study reveals that a secreted signaling protein called Wnt10b stimulates the growth of bone cells and inhibits fat cell development, leading to increased bone mass and density in mice. The research also shows that Wnt10b protects against bone loss from aging or estrogen deficiency.
A study found that mice with a hyperactive Wnt10b gene consumed more food but had half the body fat of normal mice. The protein inhibited fat cell development and had contrasting effects on white and brown fat, leading to robust health despite reduced adipose tissue.
Fibrin depletion delays MS-like paralysis and increases lifespan in transgenic mice, suggesting its role in disease progression. The study identifies fibrin's contribution to inflammatory response and nerve tissue damage in the nervous system.
Researchers at USC have created a transgenic mouse with an overexpressed noggin gene, resulting in increased hair follicles, thicker fur, and additional whiskers. The study also reveals unusual changes to the mice's eyes, feet, and genitalia, challenging the distinction between normal and abnormal variations.
The Gene Expression Nervous System Atlas (GENSAT) project has mapped gene activity in the mouse nervous system, providing insights into brain development and function. The data will facilitate investigations into neurological and psychiatric drugs, as well as advance our understanding of human development and disease.
A team of researchers has identified a key enzyme involved in the consolidation of long-term memories, revealing new insights into the molecular processes underlying learning and memory. The study found that eliminating this enzyme led to impaired memory retention, highlighting its critical role in memory consolidation.
Researchers found that boosting nerve growth factor (NGF) in genetically engineered mice enabled them to learn new tasks more quickly. The study reveals a novel way to direct brain wiring, highlighting the dynamic nature of the brain's neural connections and its ability to reorganize in response to experience.
A team of researchers found that the protein alpha1-antichymotrypsin doubles the accumulation of Alzheimer's disease-associated amyloid plaque in mice brains, indicating a potential therapeutic target. The study suggests that reducing or inhibiting this protein's activity could help prevent plaque formation and brain damage.
A20 is a critical regulator of inflammation in multiple tissues, protecting against damage by inhibiting TNF activation. The discovery suggests new ways to block inflammation and may lead to novel forms of therapy for conditions like ulcerative colitis and septic shock.
Researchers have found a genetic link between IKK-gamma gene and the rare human disease incontinentia pigmenti, which affects skin and its derivatives. The discovery provides a nearly perfect mouse model of the disease, enabling thorough study and development of diagnostic and screening tests.
The study identified metalloproteinase-9 (MMP-9) as a key player in the development of abdominal aortic aneurysms. The researchers found that MMP-9 production was significantly reduced in patients who took doxycycline, suggesting a potential therapeutic strategy for preventing aneurysm expansion.
Researchers have identified conserved non-coding sequences (CNSs) in the human genome that regulate gene expression, using comparative analysis techniques with mice. These regulatory sequences were found to be present across various mammals, indicating their importance in biological functions.
Researchers at the University of Michigan have created a new line of transgenic mice that spontaneously develop skin tumors resembling human basal cell carcinomas. The mice produce abnormally large amounts of Gli2 protein, which plays a key role in the development of these common skin tumors.
A new transgenic mouse model has been developed to simulate Parkinson's disease and related disorders, including Alzheimer's disease. The model shows impaired motor function and protein deposits in specific brain regions associated with the diseases, offering a new tool for studying and treating these conditions.
Researchers at Johns Hopkins Medicine verified Down syndrome in a genetically modified mouse model, finding identical skull and facial deformities as seen in humans. The study used sophisticated statistical techniques to match the mice' data with well-established characteristics of DS patients.
Scientists have pinpointed abnormalities in gene expression that occur before signs of spinocerebellar ataxia type 1 (SCA1) appear. Researchers found six genes whose expression pattern is altered by the abnormal SCA1 gene, including a gene involved in regulating calcium levels in neurons.
Researchers at the University of Pittsburgh have developed transgenic mice that overexpress hepatocyte growth factor, leading to increased beta cell proliferation and insulin production. The study suggests that this approach may lead to new therapies for diabetes by enabling islet cells to proliferate and produce insulin more effectively.
Scientists at Johns Hopkins University discovered that the brain chemical nitric oxide makes female mice more aggressive when defending their pups, while reducing aggression in male mice. The study also found that brain cells producing citrulline significantly correlated with female mouse aggressiveness.
Scientists at Emory University create transgenic mice with a prairie vole vasopressin receptor gene, showing increased social behavior and adopting gregarious behaviors. The study provides an explanation for the species difference in receptor distribution and its impact on social behavior.
Researchers identified two genetic elements, AE5' and AE3', that regulate human Factor IX expression, leading to increased coagulation capacity with age. The study provides insight into the molecular basis of age-related changes in blood clotting.
Researchers developed a transgenic mouse model of chronic liver disease caused by hepatitis B virus (HBV), enabling the study of immune responses and drug development. The model opens opportunities for scientists to test drugs in the liver and understand how HBV causes liver disease.
A team of researchers found that tumor necrosis factor (TNF) may have a double-edged effect on brain-injured tissue, with potential benefits in chronic stages but harm in early stages. Blocking TNF in acute phases may be beneficial, while long-term recovery requires natural TNF presence.
Researchers created genetically engineered mice with pathological characteristics of Alzheimer's disease, providing a new model for studying the disease. The mice exhibit amyloid deposits similar to those found in human patients, and further elevation of beta-amyloid accelerates the age of onset of pathological changes.
University of Hawaii scientists have made a breakthrough in cloning technology by creating the first male mouse clone, dubbed Fibro. The achievement uses somatic cells from adult male tails to produce a live offspring, showcasing that animals of either sex can be cloned and non-reproductive cells can be used.
University of Hawaii scientists have developed a new method for producing transgenic mammals by injecting DNA into eggs using mouse sperm. The technique, called Honolulu transgenesis, has shown success in producing green mice with a jellyfish 'green gene'.
Researchers used genetically modified mice to elucidate the mechanism underlying hereditary breast cancer. The study found that mutations in the BRCA-1 gene lead to genetic instability, favouring further mutations and tumour growth.
A gene knockout study has found that inactivating the Bax gene in female mice sustains ovarian function into advanced age. The research reveals that aged Bax-deficient mice maintain hundreds of ovarian follicles with functioning cells but are unable to ovulate or become pregnant.
Researchers successfully treated genetically modified mice with Parkinson's disease using gene therapy, restoring motivation to eat and drink. The study suggests a potential treatment strategy for patients with Parkinson's disease, eliminating the need for daily L-dopa treatments.
Scientists at the University of Chicago have discovered a substance that can induce hair follicle formation in mature skin cells, offering new possibilities for treating premature baldness. By manipulating the beta-catenin molecule, researchers were able to create new hair follicles from adult skin cells, paving the way for potential t...
A team of scientists found that a single gene with two vital functions can lead to missing roles, highlighting the complexity of mammalian fetal development. GATA-2 expression was previously thought to only control blood cell formation but is now known to have additional roles in the genitourinary system.
Researchers at the University of Hawaii report breaking ground in mammalian cloning by creating reproducible clones from adult cells, with implications for pharmaceuticals and disease research. The 'Honolulu technique' has yielded three generations of identical cloned mice, opening doors to new avenues in genetic engineering.
Scientists have created gene-altered mice that closely reproduce the clinical features of dilated cardiomyopathy, allowing for unprecedented study of early changes and development of new therapies. The model enables researchers to understand the causes and mechanism of the disease, ultimately aiming to develop more effective treatments.
Researchers have created transgenic mice that can see over a range of about 360 nanometers, more than humans or old world primates. The mice will be used to investigate scientific questions related to the nervous system's adaptability and how neurons connect to new information.
Researchers have generated mice with human apoE3 or apoE4 genes, showing that apoE3 promotes nerve cell outgrowth while apoE4 does not. This study provides new insights into the biological effects of apoE variants and may offer a common mechanism for their adverse effects on neurodegenerative diseases.
Human growth hormone increases bone size in mice but compromises bone quality, leading to increased brittleness and fracture risk with age. This study highlights the need for caution when prescribing human growth hormone, especially in individuals without specific medical needs.
A team of researchers at Thomas Jefferson University has developed a transgenic mouse to study the causes and effects of photoaging on human skin. The mouse line enables scientists to learn more about how ultraviolet light rays cause skin aging and wrinkling, and how this can be prevented through better sunscreen formulations.
A new study suggests that inhibiting poly(ADP-ribose) polymerase (PARP) enzyme may protect nerve cells from energy loss and prevent irreversible damage after a stroke. The research, published in Nature Medicine, found that genetically modified mice without the PARP gene experienced reduced brain damage compared to unaltered mice.
In a groundbreaking study, researchers at The Jackson Laboratory have found that PC4 plays a vital role in male fertility and early embryonic development in mice. The study revealed that PC4-deficient testicular germ cells fail to properly process precursor proteins, rendering them incompetent for fertilization.
Researchers created genetically engineered mice with a mutated gene linked to AD, producing 50% more A-beta42 peptide. This discovery may lead to targeted drug treatment for AD by understanding the mechanism of presenilin-1 and APP production.
A genetically-engineered mouse exhibits both behavioral characteristics of Alzheimer's dementia and protein-derived plaques. The oldest mice had significantly higher levels of A-Beta peptides associated with amyloid plaques, raising questions about the relationship between plaques and behavior.