Articles tagged with Animal Research
Scientists at UC Riverside have discovered a tiny worm species that can control crop pests in warm, humid environments. The new Steinernema adamsi nematode is nearly invisible and can kill insects with a low dose, making it a potential alternative to pesticides.
Researchers found elevated PROX1 levels in advanced colon adenocarcinoma, correlating with poor prognosis. PROX1 modulates CRC cell behavior, influencing invasiveness and survival outcomes. The combined PROX1/α-SMA gene set emerges as a potential CRC prognostic marker.
A new study published in the Journal of Dairy Science explores the use of spent hemp biomass as a feed ingredient for lactating dairy cows. The research shows that hemp biomass is safe and does not negatively affect milk production or animal health, despite being less palatable due to its characteristic smell. The study suggests potent...
A recent study published in Nature sheds light on how the brain's internal compass guides behavior, using fruit flies as a model organism. Three distinct groups of neurons enable communication between the compass and steering regions, translating signals into behavior to keep the fly moving in the right direction.
Researchers at Virginia Tech have developed a simple, noninvasive, rapid screen to detect cancer in dogs using urine analysis. The test is more than 90% accurate and provides a preliminary understanding of whether a dog has cancer markers in minutes.
The Komodo Dragon's teeth develop and replace rapidly, with up to five replacement teeth per position in its jaws. This allows it to quickly respond to prey capture or injury, making it an ideal model for studying theropod dinosaur life history and feeding strategies.
Researchers discovered surprising secrets about how fruit flies adapt their senses to different environments through gene expression patterns. Thousands of genes had undergone significant changes in expression, shaping unique olfactory landscapes of different fly species.
A standard quality test for raw organic milk is insufficient to distinguish between specific groups of bacteria, highlighting the need for updated criteria at processing plants. Distinguishing between non-sporeforming and spore-forming thermoduric bacteria is crucial to reducing troubleshooting time and improving milk quality.
Researchers at the University of Bristol have discovered how ermine moths produce ultrasonic warning sounds using an 'aeroelastic tymbal'. The mechanism involves the snap-through buckling of a corrugated membrane, amplifying sound production through resonance. This study sheds light on the biomechanics behind moth defense mechanisms.
Researchers at the University of Sydney have developed a method to shield plants from herbivorous mammals by fooling them with artificial odors, mimicking plants they naturally avoid. This approach is more humane and low-cost than current methods, and shows promise for protecting valuable plants globally.
Researchers observed that clown anemonefish colonies display the most aggressive behavior towards fish with three bars like themselves. The fish also recognize different anemonefish species based on the number of vertical white bars, leading to strict social hierarchies and upholding dominance.
A combination of two cancer drugs has shown promise in treating malignant peripheral nerve sheath tumors (MPNSTs), a type of cancer that is notoriously hard to treat. The study found that the combination therapy of SHP2 inhibitors and CDK4/6 inhibitors suppressed tumor growth and triggered cell death in mouse models.
A team of neuroscientists has discovered that oligodendrocytes, myelin-forming cells, accelerate glucose consumption to deliver energy-rich molecules to rapidly firing axons. This communication is mediated by potassium signals and maintains axonal health.
A survey of 2,002 Danish dog owners found that 38% used cannabinoids, primarily CBD, to treat their pets' pain, behavioral issues, and allergies. 77% of these owners reported positive effects on their dogs' mental or physical health.
Researchers at the University of Arkansas System Division of Agriculture have developed a new hybrid technique for creating detailed 3D images of the chicken brain. The method, which combines histochemistry and diceCT imaging, allows for quality images resembling MRI technology at a lower cost.
Researchers found an adaptive increase in cerebellum size in fossil vertebrates, enabling powered flight. The study combined PET scans with fossil data, revealing increased brain activity in the cerebellum and optic flow pathways during flight.
Researchers found that individual Balearic shearwaters are adapting to climate change by shifting their migratory range northwards, with a speed of 25km per year. However, this flexibility comes with constraints, as the birds have further to fly back in the autumn, and the impact on breeding success and survival is still unclear.
Scientists mapped genetic blueprints for 51 vertebrate species, including cats, dolphins, and birds, using novel algorithms and computer software. This discovery has huge implications for understanding human health and evolution, as it allows researchers to compare complete genomes and identify DNA sequence divergence.
A new CRISPR-based technology, TRED-I, has been developed to increase visibility of cancer cells to the immune system by augmenting MHC class I molecules. This technology has shown promising results in animal cancer models, reducing tumor sizes and enhancing treatment efficacy when used with existing immunotherapy.
Researchers identified two probiotic strains that promote weight loss in obese dogs. The strains, Enterococcus faecium IDCC 2102 and Bifidobacterium lactis IDCC 4301, reduced body fat percentage and improved intestinal microflora balance in dogs fed a high-fat diet.
A study by Konstanz biologists reveals that the moths use visual feedback to move and correct the movement of their proboscis, similar to humans grasping objects. The animals' efficient way of working is also great models for applied research in robotics and understanding the visual control of appendages.
A new review of international research highlights the dangers of forced separation from pets in crisis situations like domestic violence, homelessness, or natural disasters. The study found a lack of support services puts people and animals at risk of distress and harm.
Researchers have identified two distinct brain regions involved in regulating salt and water intake, which can help prevent excessive consumption. The parabrachial nucleus plays a crucial role in feedback mechanisms that reduce thirst and salt appetite after ingesting water or salt.
Researchers used fMRI to assess brain responses to lights stimulating only cone cells in dogs with different types of retinal diseases. The study found that gene augmentation therapy restored response in cortex to black and white stimulation, making this disease a promising one for photoreceptor cell replacement treatment.
A recent study published in Nature Plants reveals that O-glycosylation of the transcription factor SPATULA promotes Arabidopsis style development. The experimental study sheds new light on the mechanisms underlying plant organ symmetry.
Researchers found that male antechinus reduce their sleep by 3 hours per night for 3 weeks to focus on mating and reproduction. The study suggests that the marsupials may have a unique ability to thrive with reduced sleep, but the exact mechanisms behind this adaptation are unclear.
Research in Kenya's Ol Pejeta Conservancy reveals invasive big-headed ants have reduced lions' effectiveness at killing zebras. Lions now primarily target African buffalo instead, maintaining population stability.
A University of Kentucky team studied macrophages in spiny mice to see how they contribute to regenerative healing. They found that specific proteins released by these cells promote tissue rebuilding and growth, suggesting a potential key to triggering regeneration in humans. The study's findings may lead to new treatments for injuries...
Researchers found that intrinsically-photosensitive retinal ganglion cells (ipRGCs) use both microvillous and ciliary signaling mechanisms simultaneously. This discovery reveals a new pathway for transmitting light signals to the brain, which may have ancient origins on the evolutionary scale.
Researchers developed an mRNA therapeutic that combats ovarian cancer by producing functional p53 protein, shrinking and killing tumors. The treatment is effective against metastases and has shown promise in preclinical studies.
Researchers at São Paulo State University found a link between a protein-poor diet during pregnancy and an increased risk of prostate cancer in offspring. The study detected changes in the expression of over 700 genes in offspring, including the gene ABCG1, which is associated with prostate cancer.
A new mobile phone-based facial recognition application for dogs has been developed to improve rabies vaccination efforts in endemic areas. The app was tested at a clinic in rural Tanzania and proved remarkably accurate, identifying 76.2% of vaccinated dogs and 98.9% of unvaccinated dogs.
Research reveals humpback whales shift their daily singing patterns away from shore, returning to nearshore in the evening to minimize interference. This dynamic behavior may help increase the efficiency of their acoustic display.
A gene expression atlas has been developed to map the complex cellular and molecular interactions that drive ovulation in mice. The findings reveal a previously unknown layer of selection that determines which follicles will release eggs, and highlight the importance of early differentiation markers for fertility management.
The study's findings highlight serious failures in animal welfare protection during transportation, with all countries falling short of guaranteeing adequate protection. The researchers propose updating the regulations to address major risk factors such as excessively long journeys and hot weather, drawing key future directions for new...
A recent study found that exposure to multiple toxicants across generations can amplify health problems, such as obesity and kidney diseases. The study, published in Environmental Epigenetics, showed that epigenetic changes were greatly altered with each new generation of exposed animals.
A study of 370 documented cases found that almost half of hedgehogs injured by electric gardening tools did not survive. The data also show a growing conservation problem due to declining hedgehog populations in Germany.
Researchers at State University of Campinas discovered genes favoring colossal growth in whales also inhibit cancer development. The study found that certain regulatory regions influence both size and cancer suppression, offering new insights into the evolution of cetacean gigantism.
Researchers discovered a complex network of gene duplications and losses associated with tardigrade extremotolerance, highlighting the intricate genetic landscape driving modern tardigrade ecology. The study sheds light on the evolution of anhydrobiosis in tardigrades, revealing two independent transitions from marine to limno-terrestr...
A recent study from the University of Wisconsin School of Veterinary Medicine has uncovered new information about orofacial development in mice that researchers believe could one day help reduce the risk of these birth defects in humans. DNA methylation is a process where molecules are added to DNA that change gene expression without a...
Researchers at the University of Bristol have discovered a 200-million-year-old flying reptile, Kuehneosaurs, in Somerset. These small animals had gliding wings made from skin stretched over their side ribs and likely fed on insects.
Researchers found a significant connection between anxiety disorders and the brain receptor TACR3, as well as low testosterone levels. Testing showed that inhibiting TACR3 resulted in increased receptors on the cell surface, blocking long-term synaptic strengthening.
Researchers discovered that a specific phase of neck motor neuron activation in roundworms adjusts their trajectory toward higher salt concentrations. This finding highlights the neural mechanisms underlying navigation and sensory-motor integration, shedding light on how even simple animals adapt to environmental changes.
Researchers at Washington State University have discovered a key protein in prostate cancer cells' resistance to docetaxel. Blocking this protein, CHRM1, with dicyclomine restored the effectiveness of docetaxel and reduced tumor growth.
Researchers at Northwestern University have discovered that toxic short RNAs contribute to neuron death and DNA damage in Alzheimer's disease. Studies found that older individuals with superior memories have higher amounts of protective short RNA strands in their brains.
Repeated sexual rejection in fruit flies causes social stress, leading to increased aggression and reduced resilience to starvation and toxic herbicide exposure. The response is mediated by the brain's neuropeptide F signaling system, which also plays a role in reward- and stress-responses in other organisms.
The study identifies Morro do Príncipe as a priority area for conservation of the endangered Johngarthia lagostoma land crab in Brazil. Praia dos Andradas is also considered vital for breeding. The researchers highlight the importance of preserving vegetation to ensure the species' survival.
A recent study at The Hebrew University of Jerusalem documented a groundbreaking observation of phoresy involving a myrmecophile pseudoscorpion on a myrmecophile scorpion. The study reveals the first recorded instance of this symbiotic relationship, where the pseudoscorpion attaches to the scorpion for dispersal into new environments.
A study published in Applied Animal Behaviour Science found that dogs are most engaged when watching videos featuring other animals, with content featuring other dogs being the most popular. The research aims to improve the assessment of canine vision and support a healthier life for dogs as they age.
Water bears' remarkable hardiness is linked to a molecular sensor that detects free radicals, triggering dormancy. Cysteine oxidation plays a key role in this process, enabling tardigrades to respond to environmental stressors.
A team of researchers used high-resolution isotope profiling to connect the wanderings of a woolly mammoth with the earliest known human settlements in eastern Beringia. The study suggests that mammoths may have played a role in facilitating human migration to the Americas, and their social structures may have been influenced by climat...
A study of 379 animal studies found no consistent impact of aging on ejaculate traits, contradicting the human trend. In some species, age even improved reproductive traits, such as larger ejaculates and increased sperm viability.
Researchers have documented cannibalism in the mainland dusky antechinus during its breeding period. The behavior is linked to stress-induced death and provides an opportunity for energy gain via eating dead males or females of other species.
A study published on Nature Food highlights the potential of using by-products in animal diets to save land and water resources. The research suggests that substituting energy-intensive crops with agricultural by-products could reduce competition for natural resources and improve food security.
Researchers at Washington State University discovered that cannabis activates a set of cells in the hypothalamus, promoting appetite in mice. The study used calcium imaging technology to determine how brain cells responded to vaporized cannabis sativa.
Researchers discover antibody-dependent enhancement of toxicity (ADET), a phenomenon where antibodies can amplify venom's potency. The breakthrough contributes to expediting the development of a new generation of antivenom, potentially saving millions from snakebites yearly.
Researchers at the University of Oxford have created a standardized safety test to assess how dangerous robotic lawnmowers are to hedgehogs. The test uses specially designed hedgehog crash test dummies and has found that many models pose a threat to these animals, especially at night when they are most active.
Researchers successfully reduced bladder tumor size by 90% in mice using nanorobots propelled by urea. The nanomachines deliver a radioisotope to the tumour, attacking it with precision and efficiency. This breakthrough could lead to more effective bladder cancer treatments and reduced hospitalization costs.
A UC Riverside research project will focus on changes in the gene network that specify early intestinal precursor cells in nematodes like Pristionchus pacificus. Gene networks describe how genes turn each other on and off, and changes in these networks can lead to diseases such as cancer.
A new study reveals that bacteria associated with gum disease promote COPD through the activation of γδ T cells and M2 macrophages in the immune system. Researchers found that mice infected with periodontitis and COPD had worse progression, highlighting a potential new strategy for treating COPD.