Articles tagged with Animal Research
Researchers found that rotifers acquire genes from bacteria and produce resistance weapons, such as antibiotics and antimicrobial agents. The team's findings suggest that rotifers could give important clues in the hunt for new antibiotics to treat human infections.
A recent study by University of California - Riverside researchers has discovered that lice are a significant threat to free-range chicken populations, causing skin lesions and disrupting healthy behaviors. The study's findings have implications for states like California, where all egg production is cage-free.
Researchers have developed a new technique called burst sine wave electroporation (B-SWE) that can disrupt the blood-brain barrier around brain tumors without causing significant damage to healthy tissue. This method shows promise for treating aggressive brain cancers like glioblastoma, which currently have limited treatment options.
Researchers have made groundbreaking insights into the reproductive behaviors of a mysterious apex predator, leopard seals. A two-hour courtship interaction between a male and female leopard seal in Laguna San Rafael, Chile, revealed complexity in their behavior, including in-air calls by females and underwater vocalizations.
Studies in glassfish reveal that vision plays a crucial role in coordinated schooling behavior, with maturity also essential for developing this ability. Researchers discovered that older fish can distinguish between movement patterns of their social partners, allowing them to align their bodies and swim together effectively.
Researchers have developed Nano-MIND technology, which uses magnetism to selectively activate specific deep brain neural circuits, modulating complex brain functions such as cognition and emotion. The technology has been successfully tested in animals, demonstrating its potential to regulate feeding behaviors and maternal instincts.
Chong Xie and his team at Rice University have won a $2.9 million grant from the National Institutes of Health to develop an implantable neural electrode system for high-resolution, long-term neural recording and stimulation. The project aims to improve the resolution of existing devices by increasing the density of neurons sampled.
A study published in PLOS ONE found cut marks on fossils of a glyptodont, a giant relative of armadillos, that are consistent with known marks made by stone tools. The placement of these marks indicates a butchering sequence targeting areas of dense flesh.
Researchers found that forests with less than 29% biomass loss retain high biodiversity and ecological value. Above 68% removal, serious conservation is needed to maintain biodiversity.
A team of Texas A&M researchers will conduct a five-year study on brucellosis in Armenia to improve detection capabilities and provide education. The project aims to better understand the disease's presence and prevalence, allowing the Armenian government to develop a control plan to stop its spread.
The study found that exercise increased PEDF levels in skeletal muscles and suppressed senescence markers in the lungs. PEDF also reduced senescence markers in multiple tissues and attenuated decline in respiratory function in pulmonary emphysema mouse model, suggesting its potential as a therapeutic agent for age-related diseases.
Researchers have identified a mechanism in dogs that may render multiple antibiotic classes ineffective due to the loss of function of specific genes. This discovery opens up new avenues for therapies to treat both animals and humans, and establishes clinical infections in dogs as a surveillance approach for public health.
Researchers from SWPS University found that assigning individual characteristics to farm animals can change children's attitudes towards eating meat. In studies involving preschoolers aged 5-6, those who were given a name and unique habits showed increased desire to befriend the animal and decreased willingness to eat its meat.
Researchers identified six distinct communities of zoonotic agent sharing in Austria, influenced by highly connected infectious agents, proximity to humans, and human activities. The study highlights the importance of a holistic approach to understanding and managing zoonoses, emphasizing the role of food and water in transmission.
Researchers at Texas A&M University uncovered how domestic rabbits become feral in the wild through natural selection. They found that all European, South American, and Oceania rabbits had a mix of feral and domestic DNA, explaining why they quickly adapted to living in the wild.
Researchers at Hokkaido University have developed a comprehensive derivative synthesis method to find new antimicrobial drugs. They identified eight analogs possessing strong MraY inhibitory and antibacterial activity, with one showing promising effectiveness in mouse infection models.
A University of Maryland study reveals how the brain adapts to different listening situations, with the orbitofrontal cortex playing a central role. The findings may have implications for human health and well-being, particularly in conditions such as autism, dyslexia, or schizophrenia.
A new species of dinosaur, Comptonatus chasei, has been discovered in the UK with over 149 bones found at Compton Bay. The skeleton is around 125 million years old and represents a unique genus and species, with distinctive features such as a straight lower jaw and large pubic hip bone.
Researchers found that herring gull chicks fed a marine diet preferred fish over urban foods, indicating they may prioritize seafood for nutrition. The study suggests that early life dietary influences do not impact adult fish preferences in herring gulls.
Scientists have discovered two new wasp species, Troporhogas rogerfedereri and Troporhogas rafaelnadali, named after tennis legends Rafael Nadal and Roger Federer. The parasitoid wasps were found in Thai national parks Khao Yai and Khao Sok.
Researchers at Rice University have developed a nanosized sensor that records the electrical activity of spinal neurons in action. The sensor, called spinalNET, can track individual neurons over multiple days, providing valuable insights into the mechanisms controlling movement and sensation in the spinal cord.
Scientists at the University of Malaga have uncovered a natural quicksand trap in the 'elephant graveyard' of Orce, dated to over 1.4 million years ago. The discovery provides insights into human presence in Western Europe and competition with large carrion hyenas for meat resources.
Researchers found increased liver oxidative stress and impaired antioxidant defenses in a DS murine model. The study suggests potential therapeutic strategies targeting oxidative stress and lipid metabolism to prevent or mitigate liver-related complications.
A study published in Ecological Applications found that wolves' return to northeast Washington has had a limited impact on white-tailed deer populations. Habitat quality and cougar predation were the primary factors shaping deer populations, with wolf predation having a smaller effect.
Ecologists investigate how difficult it is for Australian bettongs and potoroos to crack open hard foods, with results informing captive diet development. The research found that some seeds required over 1000 Newtons of force to crack, highlighting the animals' remarkable ability.
A UCF biologist has compiled a database of animal DNA to study the presence of magnetic bacteria, which may aid in navigation and conservation. The database contains hundreds of millions of genetic sequences showing the presence of various types of magnetic bacteria.
Researchers have successfully developed mercury selenide and cadmium selenide nanocrystals that absorb and emit in the infrared spectrum, retaining desired properties of their parent CdSe nanocrystals. This breakthrough technology has potential to revolutionize molecular probing for imaging in biological systems.
Researchers at UNC School of Medicine have identified a small molecule that could potentially treat Angelman syndrome by 'turning on' the dormant paternally-inherited UBE3A gene copy. The compound, (S)-PHA533533, has shown excellent uptake in developing brains and bioavailability, making it a promising lead for gene therapy.
The study, published in PNAS, used ancient dingo DNA to analyze the genetic landscape of dingoes before European settlement. The research found that modern-day dingoes retain much of their ancestral genetic diversity and are distinct from domestic dogs.
Researchers found that removing the choroid plexus leads to a reduction of newly born immature neurons and fewer repairing damage caused by a stroke. The study suggests that the choroid plexus keeps regenerative cells ready to deploy to injured areas in animal models.
A recent study published in iScience found that newborn chicks are predisposed to learn quicker based on the colour of their mother. The research team discovered a colour-dependent bias in learning speed, with chicks exposed to a deep blue mother learning faster than those raised by mothers with other colours.
Researchers found that disease transmission between farms persists despite movement restrictions, with cattle movement activities being the strongest predictor of farm infections. The study calls for a multifaceted approach to managing Salmonella Dublin, including closer monitoring and targeted interventions.
The study reveals that the electric blue spots of the bluespotted ribbontail ray are produced by unique skin cells with a stable 3D arrangement of nanoscale spheres containing reflecting nanocrystals. The team believes this colouration provides camouflage benefits to the stingrays, allowing them to blend with their surroundings.
Researchers found that dogs matched their emotional state with the content of human vocalizations, while pigs exhibited stress behaviors to unusual humming sounds. This suggests that domestication may have facilitated emotional contagion in dogs.
Researchers have discovered that the Greenland shark's metabolism remains unaltered over time, suggesting a key role in its exceptional longevity of at least 270 years. The study also found that metabolic enzymes were more active at higher temperatures, challenging previous assumptions about the species' adaptation to cold environments.
Researchers tested hundreds of milk products from dozens of states and found no infectious H5N1 virus, but detected viral genetic material in 20% of samples.
Research reveals wildfire ash can have devastating consequences on Australian water ecosystems, affecting both terrestrial and aquatic organisms. The study found that two common crustacean species had varying levels of sensitivity to ash concentrations, with some unable to survive even low doses.
Scientists have developed a near chromosome-level genome for the Mojave poppy bee, which is a specialist pollinator of conservation concern. The genome assembly will help researchers understand the bee's biological traits, including host-plant specialization and susceptibility to pesticides.
A new study by iDiv-IIASA highlights the need for improved biodiversity monitoring in Europe, citing limitations such as fragmented efforts and lack of integrated data. The researchers identified key policy areas and solutions to address these challenges, including enhanced coordination, standardization, and stakeholder engagement.
A recent study found that invasive brown widow spiders are highly infected with Rhabdochlamydia, a bacterium related to major human and animal pathogens. The bacteria were also transmitted from mother spiders to their offspring.
Researchers tracked free-ranging Egyptian fruit bats and found they possess high cognitive abilities, including episodic memory, mental time travel, and delayed gratification. The study revealed that older bats can estimate time passed since their last visit to a tree and avoid those with stopped bearing fruit.
Researchers discovered that deep-sea 'comb jellies' called ctenophores have a unique adaptation in their cellular membrane that enables them to survive at high pressure. This finding may inform what's known about the human body, particularly how a specific lipid called plasmalogen works in nerve cells.
A study published in PNAS reveals that ETV5 enhances the expression of osteopontin, leading to the differentiation of T cells into follicular helper cells. In SLE patients, disease activity is proportional to ETV5 and osteopontin levels, suggesting a potential therapeutic target for treating lupus.
A new species of Ecuadorian velvet worm, Oroperipatus tiputini, has been described after over 100 years, expanding knowledge of these rare animals. The discovery highlights the importance of biodiversity conservation efforts in the Yasuní Biosphere Reserve.
Researchers have discovered that the Z-isomer of doxepin has a higher affinity for the H1 receptor, which could lead to the development of more effective antihistamines. The study also sheds light on how the binding environment enhances selectivity for the Z-isomer.
Researchers from INRAE have developed a training protocol to enable lambs to undergo MRI acquisitions while awake and unrestrained. The successful protocol has already yielded comparable brain images to those obtained from anaesthetised sheep, opening up new avenues for studying animal brain function.
Researchers used AI to analyze over 16,000 butterfly images, finding both males and females contribute to diversity among species. The study resolves a century-old debate between Charles Darwin and Alfred Russel Wallace on the role of natural selection in female evolution.
Researchers from the University of Konstanz discovered that locusts adapt their sense of smell when they switch to a gregarious lifestyle. This adaptation allows them to better detect food odours in the swarm's complex environment, enabling them to find food despite being in a crowded swarm.
Researchers successfully increase inner ear synapses in young mice to produce supranormal hearing, supporting a hypothesis on the cause of hidden hearing loss in humans. The study suggests that preserving or increasing synapses may improve auditory processing and offer new treatment options for certain hearing disorders.
Researchers at USC Keck School of Medicine discovered that a low-salt diet can stimulate kidney regeneration and repair in mice by targeting the macula densa region. This finding holds promise for developing a new therapeutic approach to treat chronic kidney disease, which affects millions worldwide.
Researchers found that wolves on Isle Royale initially affected foxes and martens by altering their habitats and diets. However, as the wolves formed packs, the effects on these carnivores disappeared. Interestingly, human visitors had a more significant impact on these species interactions than the reintroduced wolves.
Researchers found that ants need three main things to succeed when hitchhiking: climbing ability, foraging/colonizing behaviors, and temperature tolerance. The study tracked the spread of invasive ants through non-commercial transport on personal vehicles, highlighting a significant threat to native species.
Research finds increased neural activity in theta frequency band within the basolateral amygdala of depressed rats, correlating with behaviors like reduced exploration and anhedonia. The study's findings suggest that targeting specific brain regions could lead to more effective treatments.
New research found that non-native burros are altering plant growth, reducing ground cover and foliage density, and negatively impacting native wildlife species in the Sonoran Desert.
A new pilot study provides clues about the potential benefits of both intermittent fasting and standard healthy diets on brain health. Both diets showed benefits in decreasing insulin resistance, improving cognition, and reducing glucose concentration in the brain.
The American Ornithological Society has announced its 2024 award winners for early-career professionals, highlighting exceptional research in ornithology. The recipients include Sheela P. Turbek and Jessie L. Williamson, recognized for their work on bird diversity, behavior, and conservation.
Researchers discovered extreme differences in mitochondrial gene activity between males and females, highlighting the need for sex-specific disease therapies. The study, published in the Proceedings of the National Academy of Sciences, found that male mitochondria exhibit more protein-coding genes than females.
A team of scientists, led by Gerard Talavera and Clément Bataille, tracked the journey of Painted Lady butterflies using novel techniques. The research revealed that the butterflies had a closer genetic relatedness to African and European populations, supporting an oceanic migration route.
A new study published in GEN Biotechnology describes the establishment of a 3D hydrogel-based platform for producing functional T-cells from hematopoietic stem and progenitor cells. The platform was engineered with key thymic components to direct T-cell development, producing cytokine-producing T-cells.
Research on mice exposes to cannabidiol during gestation shows altered behaviors and brain changes, affecting nerve cells involved in processing emotions. The study suggests a public health priority to understand CBD's impact on developing nervous systems.