Articles tagged with Knockout Mice
Research reveals that Sulf1 is essential for both reward-dependent and aversion learning, highlighting its critical role in adult brain function. The enzyme acts through distinct dopamine D1 and D2 receptor pathways, underscoring its importance in neural circuits involved in learning.
Exposure to PM2.5 air pollutants impairs mucociliary clearance, a key protective mechanism in the respiratory tract, leading to severe airway damage and respiratory diseases. Researchers have identified the enzyme ALDH1A1 as a potential therapeutic target to reverse this damage and strengthen our respiratory defenses.
The study identified DUSP13 and DUSP27 as crucial enzymes that regulate the transition of proliferating skeletal muscle stem cells into the differentiation stage. Mice lacking these genes exhibited delayed muscle regeneration, highlighting their importance in maintaining muscle function.
Researchers found that mice lacking certain signal molecules produced during exercise had reduced oxygen consumption and fat burning, leading to increased susceptibility to weight gain. In humans, those producing more of these alternative versions consumed less oxygen and had lower body fat.
A research team from Osaka University identified a key osteoporosis-related gene, Men1, and developed a new animal model of the disease. The study found that inactivation of Men1 led to cellular senescence in osteoblasts, reducing bone formation activity and increasing bone resorption.
A recent study has uncovered 145 genes crucial for genome stability, shedding light on genetic factors influencing human health over a lifespan. The research highlights the potential of SIRT inhibitors as a therapeutic pathway for cohesinopathies and other genomic disorders.
Studies on knockout mice have shown that removal of specific matrix proteins leads to visual deficits, including impaired motion processing and synaptic imbalance. This research contributes to a better understanding of visual processing mechanisms, potentially offering new therapeutic approaches.
A team of researchers at Kyoto University has found that a deficiency in the enzyme B4GALT3 inhibits tumor growth in mice. The study shows that reduced glycosylation on T cell surfaces correlates with increased CD8+ immune cells infiltrating tumors.
Researchers at UPMC Children's Hospital of Pittsburgh and the University of Pittsburgh School of Medicine found that eliminating a key driver of cancer also hastened aging in mice. Despite accelerated aging, these mice lived up to 20% longer than normal mice due to lower cancer rates.
Researchers found variability in IgA levels between blood and gut samples, suggesting IgA regulates commensal microbes to prevent immune dysregulation. Patients with normal fecal IgA were less likely to develop symptoms, while those deficient in both blood and fecal IgA showed elevated inflammatory cytokines.
A study published in Nature Communications reveals a small secreted protein NICOL regulates lumicrine-mediated sperm maturation and male fertility. The research team discovered that mice lacking NICOL were sterile, indicating its importance for the sperm-maturation pathway.
Researchers found that Sirtuin 7 regulates brown adipose tissue functions, leading to suppressed energy expenditure and thermogenesis. The study reveals a molecular pathway involving protein deacylation and mRNA binding, which will have implications for treating hypermetabolic conditions like cancer and obesity.
Researchers found that knocking out TXNIP in alpha cells improves diabetes-associated hyperglycemia and hyperglucagonemia. This discovery suggests a new potential treatment for Type 1 diabetes.
Research at Kyoto University found that estradiol suppresses severe skin inflammation in females compared to males, revealing its therapeutic potential. The hormone regulates immune cells and reduces IL-17A and IL-1β cytokines production.
Researchers have identified the Xist gene as a critical regulator of fetal development in mice, leading to miscarriage and abnormal placentas when epigenetic instructions are missing. The study's findings suggest that failed Xist imprinting can be 'cured' by targeting specific genes involved in histone modifications.
Researchers discovered that inhibiting the breakdown of a neuroprotective molecule called 2-arachidonoylglycerol (2-AG) in astrocytes promotes recovery from traumatic brain injury. The study suggests that targeting this molecule could lead to the development of new therapies for TBI-induced disease.
A study by Adrien Guillot et al. found that knockout of the ALDH-2 enzyme in mice reduces excessive but not moderate alcohol seeking activity. Targeting this enzyme specifically in the liver may prevent heavy drinking without affecting moderate consumption.
A team of researchers has identified dozens of genetic mutations linked to rare eye and skin disorders in knockout mice. These discoveries may help clinicians identify equivalent genes in human patients with no known genetic cause.
Researchers found that removing GRASP1 protein reduced mice's ability to learn and recall information. The protein plays a crucial role in recycling receptors in brain cells, which is essential for strengthening neural connections required for learning and memory.
A new study found that neuropilin 2 deficiency leads to excessive and prolonged fluid build-up after inflammation, causing edema. The research also revealed a novel hypothesis that endogenous Semaphorin 3F protein inhibits vascular permeability and edema.
Researchers at Ohio State University have found that deleting microRNA-155 in female mice prevents weight gain on a high-fat diet. The study shows a 56% reduction in obesity and a 74% reduction in fat accumulation.
Scientists have identified a crucial gene that regulates the activation of hair follicle stem cells, leading to increased hair growth but also wear and tear. In mice lacking this gene, hair follicles enter an overactive state, resulting in premature greying and balding.
Researchers developed an ultra-superovulation method to increase the number of eggs obtained from genetically modified mice, reducing the need for multiple females and improving efficiency in IVF and embryo transfers. The breakthrough could lead to a significant reduction in the number of experimental animals used in research.
Scientists at TSRI discovered that deleting the gene for a brain protein called GIRK3 in mice increased alcohol consumption and prevented the brain from signaling the rewarding properties of alcohol. In contrast, reintroducing GIRK3 reduced binge drinking.
Researchers at The Wistar Institute discovered that mice lacking TRAP-1 protein live longer lives with fewer age-related illnesses. TRAP-1 is an important regulator of metabolism and has been shown to regulate energy production in mitochondria, organelles that generate chemically useful energy for the cell.
A new University of Notre Dame study reveals the molecular genetic and physiological basis for metabolic diseases related to circadian function. The research found that a specific gene, Id2, plays a crucial role in glucose metabolism and circadian control of feeding and locomotor activity.
Researchers found that mice lacking the monoamine oxidase A and B enzymes displayed increased fear and generalized phobia to new contexts. This study suggests a correlation between MAO enzyme deficiency and autistic-like features, highlighting potential avenues for developing interventions for neuropsychiatric disorders.
Scientists extend mice lifespan by up to a fifth and reduce age-related diseases through blocking key molecular pathway, mirroring health benefits of calorie restriction. The study suggests that drug treatments targeting the S6K1 pathway may be feasible, building on existing research on calorie restriction's potential for human longevity.
A new mouse model reveals that hyaluronic acid plays a critical role in skeletal growth, chondrocyte maturation, and joint formation. The discovery opens possibilities for future research into age-related diseases such as arthritis and skin aging.
A study by Monell researchers found that over 6,000 genes contribute to an individual's body weight, contradicting the idea of a single 'obesity gene.' This suggests that quick fixes for obesity are unlikely and highlights the complexity of the issue.
A new study by the University of Arizona suggests that environmental factors can significantly impact research results. Researchers found that mice housed in enriched environments showed reduced arterial defects and less disorganized tissue compared to those in standard cages.
The NIH has launched an effort to make more knockout mouse models widely accessible to the biomedical research community. The initiative aims to deposit existing knockout mouse lines into public repositories, increasing their availability and accelerating the development of new strategies for understanding and treating human disease.
A team of researchers has identified a potassium channel, Kv4.2, that plays a crucial role in pain plasticity and may be a primary target for new pain therapies. The study suggests that increasing the activity of this channel or decreasing the activity of related ERK molecule could lead to analgesic effects.
Researchers have identified CXCR2 as essential for neutrophil migration into the lungs of mice exposed to lipopolysaccharide (LPS). The presence of CXCR2 on blood vessel wall cells and epithelial cells lining airways facilitates this process.
The NIH has secured contracts with Deltagen Inc. and Lexicon Genetics Incorporated to provide researchers with extensively characterized lines of knockout mice, featuring disrupted genes. This comprehensive resource will greatly accelerate efforts to explore gene functions in health and disease.
Scientists discovered that deleting three circadian genes in mice results in severe epilepsy and accelerated aging. The mice lacking all three genes are prone to epileptic seizures and display early mortality, with a significant increase in deaths on Mondays and Thursdays due to sound-induced attacks.
Researchers discovered that PERK enzyme is a key regulator of protein synthesis in humans, leading to growth retardation, skeletal abnormalities and diabetes. Treatments targeting IGF-1 may offer therapeutic interventions for diseases like Wolcott-Rallison Syndrome.
Researchers created genetically engineered mice lacking keratin 17, a structural protein found in hair follicles, to investigate its role in hair growth. The results show that K17 knockout mice display temporary baldness due to hair fragility and premature cell death, but eventually regrow fur at around three weeks old.
Researchers have found that pheromones play a crucial role in mice's gender recognition. The knockout mice, which lacked a gene for a pheromone receptor, were unable to recognize males and displayed unusual mating behavior. This breakthrough provides new insights into the neural circuitry responsible for sex discrimination in mice.
Research in mice reveals that TAFII105 is a cell-type specific component of the transcription machinery, controlling egg formation and potentially linked to female infertility. The study provides new avenues for understanding the complex transcriptional mechanisms underlying cell-specific gene expression.
Researchers investigated how two proteins, Nodal and Pitx2, direct organ growth in mice, finding that Pitx2 plays a crucial role in determining lung leftness. The study also showed that a single transcription factor does not account for the entire left-right asymmetry in humans, highlighting the need for further research.