Articles tagged with Animal Research
Researchers found that loggerhead sea turtles harbor thousands of microscopic organisms, including nematodes, on their shells. The study adds at least 111 new species to the list, revealing a complex relationship between turtle migration patterns and microbial communities.
A new method dubbed 'DEEP-Clear' allows researchers to visualize individual cells and their extensions in complex tissues like the brain. This approach enables scientists to capture 3D images of cells and tissues without sectioning, opening up new avenues for studying neural stem cell biology.
Researchers have developed a wearable device that uses external electric fields to trigger insulin release from bioengineered cells, stabilizing blood glucose levels in mice. The approach opens the door for remote-controlled diabetes therapies and represents an expansion of electrogenetic toolboxes for human therapeutics.
Researchers at Temple University Health System have discovered that blocking the molecule Drp1 can prevent abdominal aortic aneurysms from developing in animals. The study suggests that maintaining mitochondrial fission-fusion balance may be fundamental to preventing AAA and other cardiovascular diseases.
Researchers at the University of São Paulo's Engineering School have developed a low-cost mechanical ventilator that costs approximately 7% as much as conventional ventilators. The device has already been tested in animals and humans and shows promise in treating patients with acute respiratory syndrome, a severe outcome of COVID-19.
Researchers found that somatostatin neurons, involved in emotional processing and addiction, are impacted by alcohol withdrawal. Targeting these neurons may be a viable candidate for treating depression related to alcohol withdrawal.
A recent study found that birds in eastern North America are shifting their breeding ranges in response to climate change. Some species, such as Carolina wrens and red-bellied woodpeckers, may be resilient to future changes, while others, like Neotropical migratory birds, are experiencing range contractions. The research highlights the...
A review paper from McGill University found that pain research remains overwhelmingly biased towards male rodents, leading to ineffective treatments for female chronic pain sufferers. The study suggests that most current analgesics will largely work in men rather than women, highlighting a critical blind spot in pain research.
Research reveals that European viper's characteristic zig-zag pattern serves multiple functions during predation events, including hiding and producing an illusionary effect. The study resolves theoretical tensions between opposing functions of color patterns, suggesting a broader scope for evolution.
A new UCF study found microplastics in the digestive systems of 63 birds of prey in Florida, including hawks, ospreys, and owls. The researchers discovered nearly 1,200 pieces of plastic, mostly microfibers, which can lead to poisoning, starvation, and death.
A new study found that ketogenic diets significantly changed the proportions of common gut microbial phyla in human participants, with a particular decrease in Bifidobacteria. In mouse experiments, ketone bodies directly impacted the gut microbiome, reducing Th17 immune cells and promoting anti-inflammatory effects.
Female roundworms release serotonin when sensing danger, passing warning signals to eggs and future offspring. This mechanism protects the young from harm, increasing birth rates and survival success.
Scientists used virtual reality to simulate a naturalistic environment for insects, revealing their ability to use perspective and motion parallax to locate food sources. The study also showed that airflow cues play a crucial role in orienting flies, especially in the absence of visual cues.
New research analyzing over 10,000 bird species reveals that wing shape adapted for long-distance flight is primarily driven by temperature variability, territory defense, and migration. This geographic pattern has significant implications for understanding biodiversity and may explain smaller geographical ranges in tropical species.
A new study from the University of Sheffield reveals that bird species' development time is influenced by their lifestyle, environment, and evolutionary history. The research found that 'live fast die young' strategies allow birds to maximize offspring production in short periods.
A K-State University infectious disease scientist has co-authored a critical needs assessment for coronavirus-related research in companion animals and livestock. The study highlights the importance of studying COVID-19's potential spread between humans and animals, with key areas of focus including animal susceptibility and therapeuti...
A new study found that humpback whales are at risk of collision with vessels in the Magellan Strait, with some individuals encountering ships up to 18 times per season. The researchers propose speed limits and mandatory observers on commercial vessels to reduce the risk of injury or death.
A study published in the New England Journal of Medicine found that cats can become infected with SARS-CoV-2 and shed the virus, potentially transmitting it to other cats. The virus was not lethal and all cats ultimately cleared the virus.
A new study found that zebra finches' material preference for their first nest is shaped by their juvenile experience of the material, but only in the presence of an adult. Birds who had access to an adult or material during adolescence built their nests faster and preferred materials accordingly.
Dr Ian Duncan has made groundbreaking research on how myelin is damaged in multiple sclerosis and how it may be repaired. His work focuses on transplanting myelinating cells to promote function in people with MS.
A recent brain imaging study suggests that the absence of a partner can strengthen the motivation to reunite, potentially driving the instinct to form lasting bonds. The research found unique clusters of cells in the brain associated with reunion and social distancing, shedding light on why social distancing is tough.
Researchers at Kyoto University found that snakes and frogs engage in a delicate waiting game, where each animal waits for and anticipates its opponent's actions. This allows them to predict successful capture or escape outcomes.
The study found that the microbiome exerts a continuous effect on conventional dendritic cells, which are key players in the immune response. In their basal state, these cells require microbiome-derived signals to prime for future responses against pathogens.
A new paper identifies urgent issues to consider, including potential animal-to-human transmission, food security concerns, and national security threats if military service dogs are infected. Stringent studies are needed to understand the risks posed by domestic animals as a possible source for human infection.
A new freeze-resistant Trichinella species has been found in wolverines, highlighting the need for improved food safety measures. The species, named Trichinella chanchalensis, was discovered in 14 of 338 wolverine samples tested and is estimated to be around 6 million years old.
A University of Saskatchewan research team has discovered that bat cells can persistently infect with MERS coronavirus for months due to adaptations from both the bat and virus. This unique 'super' immune system in bats allows coronaviruses to remain long-term without causing harm, suggesting stresses on bats may contribute to species ...
A study by researchers at the University of Exeter found that captive otters tend to play with stones more when they are hungry. The behavior is thought to be linked to excitement for food, rather than practice for foraging skills.
A new study found that methylene blue reduces tissue damage, inflammation, and degree of necrosis in intestinal ischemia-reperfusion. The drug also improves heart rate and blood pressure in animals.
Researchers found that salmon use microscopic crystals of magnetite in their tissue as both a map and compass to navigate the Earth's magnetic field. The study suggests that chains of magnetite may play a role in the navigation system of salmon.
Researchers found that bats prefer moving katydid models over still or vibrating ones, posing a risk to both signalers and searchers during courtship. This study highlights the importance of predator avoidance in tropical ecosystems.
International researchers discovered a nearly complete skeleton of Adalatherium, a 66-million-year-old mammal that lived among dinosaurs and massive crocodiles. The finding sheds light on the evolutionary history of gondwanatherians, an extinct group of mammals known from isolated teeth and jaw fragments.
Researchers at Lund University discovered a unique energy-saving strategy used by Arctic birds during the polar night, involving weakening their immune system. This adaptation allows them to conserve energy on keeping warm and finding food, but may pose risks when climate change alters migratory patterns and disease transmission.
Researchers found that decreasing neuroinflammation in the brain before memory problems and cognitive impairment were apparent may be beneficial. The new findings point to the importance of developing therapies that target very early stages of Alzheimer's disease.
Hunter-gatherer societies had profoundly deep relationships with hunted animals, experiencing emotional and psychological connections after their disappearance. The study explores the impact of animal extinction or migration on human culture, revealing adaptations in material and social culture.
Researchers found that high-fat diets caused impaired cognitive function in obese rats, affecting their mental exhaustion. The study, published in The FASEB Journal, suggests a link between excess weight and compromised cognitive abilities.
Recent research studies published in The FASEB Journal cover topics such as the effects of vaping on lung tissue repair, potential treatments for arthritis and indigestion, and insights into why loud noise is bad for health. Other areas of focus include the discovery of new eco-friendly light sources, improved methods for growing plant...
Researchers from the Universities of Bonn and Zurich have found a significant decline in food plants for insects in the canton of Zurich over the past 100 years. This has resulted in a decrease in the abundance of species visited by bees, bumblebees, wasps, butterflies, hoverflies, flies, and beetles.
Research reveals North Atlantic right whales are in poorer body condition than Southern right whales, affecting reproduction and growth rates. The study suggests lethal vessel strikes, entanglement, and food scarcity contribute to their decline.
Researchers found that a common soil fungus can promote plant growth and boost defense responses in corn plants, suppressing pest growth. This discovery could be an valuable ally for organic corn growers facing challenges with insect control.
A new study reveals that marine animal diversity has remained fairly constant over the past 540 million years, with regional-scale patterns dominating geological time. The research challenges previous estimates of increasing biodiversity over the last 200 million years.
Researchers studied Aegean wall lizards on predator-free islands and found they rapidly developed new chemical signals distinct from their source population. This change occurred after only four generations and offers a unique opportunity to understand animal communication.
Researchers discovered that presynaptic PTPσ trans-synaptically regulates postsynaptic NMDA receptor responses, enabling novelty recognition in mice. Mice lacking PTPσ showed impaired social novelty recognition and failed to recognize new objects, stranger mice, and rules.
Cynomolgus macaques infected with SARS-CoV-2 exhibit mild symptoms and high viral RNA levels, shedding the virus from respiratory tract early during infection. The results suggest these animals are suitable for testing COVID-19 control measures and therapeutics.
A UCL-led study reveals that certain organisms, like C. elegans roundworms, possess self-destruct programs to prevent overliving and benefit their colonies. This adaptive mechanism reduces food demand and increases reproductive success, providing a winning strategy for the community.
Researchers measured oxygen consumption in wild-caught lesser treeshrews across various temperatures. The study found that Bornean treeshrews have a high upper limit of the thermoneutral zone, contradicting current assumptions.
Analyses of four fossilized molars found in Peruvian Amazon reveal a new primate lineage, Ucayalipithecus perdita, with features distinct from the known Platyrrhini. This discovery suggests that another group of primates may have crossed the Atlantic Ocean around 35-32 million years ago, settling in the New World.
Ants adapt their behavior to avoid traps by associating visual cues with negative experiences. Researchers studied two species of ants that changed their route on the second attempt after experiencing a setback.
Researchers found that black rhinos carrying oxpeckers are better at sensing and avoiding humans than those without the birds. Oxpeckers' alarm calls help rhinos detect humans from a safe distance, allowing them to reorient themselves to face downwind.
A research team led by Jonathan Losos will sequence the genomes of 200 species of Anolis lizards and introduce genetic changes using CRISPR to test their effects on adaptation. The study aims to identify genes responsible for evolutionary adaptation in Central American lizards.
In a recent study published in Transboundary and Emerging Diseases, researchers isolated two H16N3 subtype influenza viruses that can bind to both human and avian-type cell receptors. The viruses showed evidence of genetic material from other species, suggesting they could infect humans and animals in the future.
Researchers at Arizona State University found that activating the anterior insula restored prosocial behaviors in animals with opioid addiction, a potential breakthrough in treating social behavioral deficits. The study used chemogenetic methods to selectively activate the brain region involved in both prosocial and addictive behaviors.
Researchers attach backpacks with sensors to tiny animals like vampire bats, enabling precise mapping of their social networks and flight trajectories. The system conserves energy and provides robust results for studying animal behavior and conservation.
A new vaccine candidate, PittCoVacc, has generated a surge of antibodies against SARS-CoV-2 within two weeks of injection. The vaccine follows a more established approach, using lab-made viral protein pieces to build immunity, and is delivered through a novel microneedle array that can be manufactured at scale.
Researchers at Tokyo University of Agriculture and Technology have successfully created 3D cultured tissue that mimics liver fibrosis, a key characteristic of non-alcoholic steatohepatitis (NASH). The cells were collected from liver tissues of NASH model mice and showed characteristics similar to those of NASH liver tissues.
Researchers at the University of Turku found that elephants with higher cortisol levels also had higher heterophil to lymphocyte ratios, indicating a positive correlation between biological measures of stress. Additionally, elevated stress was linked to weight loss in Asian elephants.
Researchers found that allied male bottlenose dolphins synchronize their vocal behavior when cooperating together, promoting cooperative behavior and regulating stress. This behavior helps reduce tension between males in a context that requires them to work together successfully.
A team of researchers from the University of Tsukuba investigated the role of various neurotransmitters in regulating metamorphosis using the model sea squirt Ciona intestinalis. They found that GABA is a key regulator of metamorphosis, triggering physical changes associated with maturation.
Researchers have found a way to halt and reverse muscle fibrosis caused by overuse injuries in animal studies. The discovery uses the drug FG-3019 to block protein CCN2, which promotes connective tissue growth, leading to significant improvements in muscle strength.
Numerical competence in animals affects various aspects of their lives, including hunting, finding food, and attracting mates. Researchers believe that this ability plays a crucial role in an animal's chance of survival.
Scientists have developed a tiny device to study the avian magnetic orientation mechanism, challenging the prevailing photochemical theory. The experiment found that birds with portable devices attached were not disoriented when exposed to local oscillating magnetic fields, suggesting alternative components of the magnetoreception system.