Articles tagged with Animal Models
A team of researchers developed a dynamical model that explains how animals learn over time, contradicting previous theories. The multi-dimensional model shows that learned associations are not mediated solely by strength but by multiple nearly independent pathways.
Researchers have found a potential treatment for osteoarthritis by targeting the GP130 immune receptor, which causes hyper-inflammation in joints. The new compound R805/CX-011 showed promising results in animal studies, reducing joint pain and stiffness, and may lead to Phase 1 and 2A clinical trials.
A team of researchers at Kyoto University has established a method to identify individual inbred medaka killifish by analyzing the characteristic patterns of dark spots on their heads. This identification method may contribute to biometrics for medical and drug discovery research.
Researchers found that dogs with anxiety have altered brain connectivity, particularly between the amygdala and hippocampus. The study used fMRI to characterize abnormal neural networks in anxious dogs, providing insight into anxiety disorders in both animals and humans.
Researchers from University of Konstanz develop 'neural puppeteer' AI model to predict animal poses and appearances, enabling analysis of intermediate motions. The system uses 3D key points to calculate statistically likely steps, crucial for studying collective behavior in wildlife.
The Center for C. elegans Anatomy is receiving $2.6 million in funding from the NIH to expand WormAtlas, a resource for researchers studying C. elegans and other nematodes. The expansion aims to incorporate new nematode species into the atlas, enabling comparisons between C. elegans and less-studied species.
A model predicting oxygen levels in freshwater streams, developed by WVU researcher Omar Abdul-Aziz, helps determine stream pollution and health. The tool allows citizen scientists to take action on stream pollution, with potential applications for implementing the Clean Water Act.
A University of Bristol study found that social animals limit individuality to conform with the behaviour of the group. Simple social behavioural rules can drive conformity behaviour in groups, eroding consistent behavioural differences shown by individual animals.
Researchers developed a testing model to understand cognitive challenges of superior semicircular canal dehiscence (SSCD), a rare condition causing sound-induced dizziness and hearing abnormalities. The Mongolian gerbil model shows promise for accelerating recovery with reversible diagnostic findings characteristic of patients with SSCD.
Researchers have identified a new genetic pathway involved in regulating sleep from fruit flies to humans. The Pig-Q gene is associated with sleep regulation in both humans and animals, providing a novel insight into the genetics of insomnia.
Researchers have developed an innovative amputated human limb model to evaluate molecularly targeted fluorescent probes for human tissues. The model allows for controlled testing of imaging agents with zero risk to patients, improving the accuracy and safety of surgical procedures.
The article discusses the use of Rapamycin in the context of Pascal's Wager, a philosophical framework used to justify beliefs. ChatGPT's generative pre-trained transformer model provides an exhaustive research perspective on the pros and cons of taking Rapamycin for anti-aging purposes.
A Medical University of South Carolina research team has discovered that HDAC1 plays a crucial role in packing DNA around histones, which can help target cancer cells with inhibitors. The novel egg extract system allows researchers to study DNA packing in real-time, outside of a cell.
Texas Biomed is at the forefront of developing a Sudan ebolavirus vaccine and antibody therapeutic to combat the ongoing outbreak in Uganda. The Institute has been awarded millions of dollars in contracts to run studies required for FDA approval, utilizing its BSL-4 laboratory facilities.
A new report by The Hastings Center recommends clearer ethics guidelines and enhanced oversight for human-animal chimera research, which raises questions about animal welfare and moral status. The report also highlights the potential benefits of this research, including better disease models and organ transplantation.
In a complex process, germ cells produce GRIF-1 protein to mark and degrade maternal RNA molecules, gaining access to their own genetic material. This allows for the development of an entire organism without maternal control.
A new study reveals ketamine dramatically changes neuronal activity patterns in the cerebral cortex, turning off active neurons and turning on silent ones. This switch in brain activity may impact our understanding of ketamine's antidepressant effects and future research in neuropsychiatry.
Researchers from Tokyo Metropolitan University identified optimal sedatives and anesthetics for studying marmoset brains at rest, preserving the resting state network. The study suggests a more realistic solution for accurate data, with Midazolam or Dexmedetomidine combined with light restraint being the most effective option.
Researchers at University Hospitals and Case Western Reserve University have discovered a small-molecule oral drug that reduces PCSK9 levels and lowers cholesterol by 70% in animal models. This breakthrough could also improve the efficacy of cancer immunotherapies.
Research at Tel Aviv University found that high-intensity aerobic exercise increases glucose consumption in internal organs, reducing energy availability for tumors. The study reduced the risk of metastatic cancer in humans and animal models by up to 72%.
A research team at MedUni Vienna's Department of Plastic, Reconstructive and Aesthetic Surgery has discovered a previously unknown ability of the autonomic nervous system to spontaneously restore muscle function following a nerve injury. This finding may form the basis for improving interventions to treat nerve lesions.
Researchers found drastic differences in microglia marker Iba1 and factors influencing Sirt1 levels and activity between elder groups. Preserving microglia and Sirt1 functional efficiency is crucial for longevity.
Researchers found that MK256 induced differentiation and maturation in leukemia stem cells, inhibiting proliferation of AML cell lines. The study also showed dose-dependent inhibition of the STAT pathway in both in vitro and in vivo studies.
Researchers at Eötvös Loránd University developed two tests to assess age-related memory performance and neophobia differences in dogs. The memory test found that older dogs make more mistakes before finding food, while the novel object test revealed an increased tendency to avoid new objects with age.
A new study has found that springtails' jumping, soaring, and landing patterns are precise and controlled, with some species able to land on their feet. The research, led by Victor Ortega Jiménez, aims to teach robots how to replicate this ability.
Researchers from North Carolina State University have developed a new method for identifying genes relevant to the aging process in the C. elegans roundworm model. By exposing thousands of worms to random genetic mutations, they can pinpoint which genes are associated with protein aggregation and reduced lifespan.
McCullough's research advances the field of cardiovascular science, with a primary focus on sex differences in stroke. Her work has led to significant discoveries about cell death pathways during ischemic insults.
Researchers at Kyushu University developed a new method to create highly detailed 3D models of plants and animals. Over 1,400 models are now publicly available for use in education, research, and virtual exploration.
A new study published in GigaScience has made available an enormous amount of behavioral data from an animal model of obsessive-compulsive disorder (OCD), comprising over 2 years of continuous recording. The data set, which is the culmination of a 15-year study, provides insights into the mechanisms of OCD and potential treatments.
Researchers developed a groundbreaking model to estimate bait vaccination effectiveness in wild animals by analyzing the proportion of immunized animals and vaccine applications. The study successfully tested the model using real data from Japan's CSF outbreak, demonstrating a measurable increase in immunized wild boars.
Two nonprofit research organizations partner to create new TB vaccine candidates with diverse adjuvant technologies and genetically diverse mouse models. The team aims to develop thermostable vaccines that can last for several months at room temperature or years in standard refrigerators.
A new study found that SARS-CoV-2 causes significant neuron damage and inflammation within a week of infection in rhesus macaque monkeys. Aged animals with Type 2 diabetes experienced worse virus-induced neurological damage, raising concerns about potential spikes in neurodegenerative diseases.
Scientists at IRB Barcelona and the PCCB have created a genetically tractable model of Ewing sarcoma using Drosophila flies expressing a mutant version of the human oncogene EWS-FLI. This model allows for the identification of critical proteins required for EWS-FLI's oncogenic function and potential therapeutic targets.
Researchers from Xi'an Jiaotong-Liverpool University found that brain stimulation combined with a nose spray containing nanoparticles can improve recovery after ischemic stroke. The treatment increased cognitive and motor functions, and weighed more quickly than those treated with TMS alone.
A new study proposes reducing toxic proteins in the blood as a potential therapy for Alzheimer's disease. By doing so, it aims to improve memory and learning capacity, as well as correct cognitive impairments. The next step is to test this treatment at a clinical level.
Researchers suggest special blood vessels called 'retia mirabilia' reduce brain pressure pulses, preventing damage. Computer modeling supports theory, which could be applied to other animals and humans.
Neflamapimod, a p38α kinase inhibitor, demonstrates reversible neurodegeneration in animal models and improves clinical endpoints associated with cholinergic neuronal function in patients with dementia with Lewy bodies. The findings support the initiation of a confirmatory Phase 2b clinical trial for neflamapimod.
Researchers replaced zebrafish GPR17 receptor gene with human version to study myelin repair in multiple sclerosis. Testing substances in modified fish larvae may lead to quicker and more successful human trials.
A study published in Animal Behaviour found that female Kinda baboons with strong social connections and higher ranks have babies that mature faster. This allows mothers to redirect their energy towards reproduction sooner.
Researchers at Tel Aviv University develop a groundbreaking method to eradicate glioblastoma brain tumors by targeting astrocytes and starving them of energy. The study found that in the absence of these brain cells, tumor cells die and are eliminated, offering a promising basis for developing effective medications.
The US FDA is reassessing its need for animal tests in product development, exploring alternative methods that could improve efficacy and safety predictions. New technologies like microphysiological systems may replace traditional animal studies, enabling faster product approval.
The University of Cincinnati is conducting a study on a potential new treatment for pancreatic cancer using SapC-DOPG, a nanotechnology drug delivery system. The treatment has shown promise in reducing tumor growth by 50-80% in animal models and aims to develop an effective immunotherapy treatment.
A study published in NeuroReport reveals that ultrasound exposure improves depressive behavior in a rat model of depression. OB rats exposed to USV had significantly lower hyperemotionality scores and plasma corticosterone levels than unexposed rats, suggesting potential anti-depressant effects.
Researchers at University of Cincinnati and Case Western Reserve University found a novel drug enables nervous system repair and functional recovery in animal models of severe ischemic stroke. The study demonstrated significant improvement in motor function, sensory function, spatial learning, and memory. NVG-291-R repairs damage throu...
Researchers have developed a groundbreaking 'toolbox' to study receptor mobility in the brain, revealing its critical role in certain types of memory. The study used high-resolution imaging and manipulation techniques to observe receptor dynamics in intact brain tissue, providing new insights into the mechanisms controlling memory.
A review of over 200 publications suggests that fish perceive quantities using similar brain regions as mammals and birds. This finding could lead to the development of new treatments for human diseases affecting math skills, such as developmental dyscalculia.
A team of researchers developed a model system to study individual differences in metabolism using C. elegans worms. They identified a novel metabolic condition linked to variation in the hphd-1 gene, which has implications for personalized medicine and tailoring dietary advice and disease treatment to an individual's genome sequence.
Researchers recreated ancient ammonite movement using robotic models, exploring trade-offs between stability and maneuverability. The study found that different shell shapes offered varying advantages and consequences, with no single perfect design.
Researchers have created the largest genetic atlas for zebrafish, which provides a comprehensive understanding of gene expression and developmental dynamics. The atlas, developed by the DANIO-CODE consortium, offers a broad picture of candidate DNA regions for transgenic breeding and genetic research into development and diseases.
Researchers have developed a new protocol for differentiating human embryonic stem cells into retinal pigment epithelial (RPE) cells, which can be used to treat age-related macular degeneration. The study shows that the protocol produces a pure population of RPE cells that can continue maturing after transplantation, paving the way for...
A new study from Tel Aviv University developed a unique treatment for AIDS that may be developed into a vaccine or a one time treatment. The treatment involves engineering type B white blood cells to secrete anti-HIV antibodies in response to the virus.
A study led by Tel Aviv University researchers reveals a common mechanism underlying genetic mutations associated with autism, schizophrenia, and other neurological disorders. The discovery points to an experimental drug developed by the team as a potential treatment for these conditions.
A UAB research team successfully monitored microplastic behavior in Drosophila larvae, revealing interactions with microbiota and intestinal barrier. The study confirms the fly's relevance as a model for studying nanoplastic effects on human health.
The US Army Medical Research Institute of Infectious Diseases has made a breakthrough in understanding Crimean-Congo hemorrhagic fever virus (CCHFV) disease process. The study found that the host inflammatory response is a significant driver of CCHFV-mediated disease, and that modulating this response could help prevent severe disease....
Researchers at University of Missouri, Georgia Tech and Harvard University have successfully demonstrated a new Type 1 diabetes treatment in large animal models. By transplanting pancreatic islet cells with a molecule called FasL, they prevent rogue immune cells from destroying the transplanted cells.
A team of researchers has successfully treated damaged pig hearts with cardiac progenitor cells, demonstrating the formation of new cardiac tissue and improved cardiac function. The treatment could potentially be used to treat patients with serious heart failure, particularly older patients with coexisting conditions.
Researchers found that jellyfish's stinging cells evolved by repurposing a neuron inherited from a pre-cnidarian ancestor. This discovery provides insights into the emergence of new cell types and the evolution of biodiversity, suggesting that co-option of ancestral cell types was an important source for new cell functions.
Researchers at EPFL's School of Life Sciences create a digital twin of Drosophila called NeuroMechFly, which uses biomechanical modeling and machine learning to simulate the fly's movements. The model is validated through experiments that demonstrate its accuracy in replicating real animal behaviors.
A new study suggests that supplementing a diet with Ascidiacea, also known as sea squirts, reverses some main signs of aging in animal models. The researchers found that plasmalogens, vital to body processes, decrease with age and contribute to neurodegenerative diseases like Alzheimer's and Parkinson's.
Researchers have identified helpful and unhelpful aspects of the immune response that determine whether TB infections can be kept under control. The findings may help design a more effective vaccine by targeting specific cell subsets and modulating intercellular signaling.