Articles tagged with Body Temperature
A 10-year study found that warmer temperatures and forest disturbances helped grizzlies build more body fat, increasing their chances of successful reproduction. This 'silver spoon effect' benefits bears born into favourable conditions, giving them a head-start in life.
Researchers found that fatter dormice increase metabolic rate more frequently and spend more time at normal body temperature during hibernation, minimizing negative effects. This strategy enables dormice to maximize total hibernation time while maximizing survival chances.
A study published in Experimental Physiology found that paracetamol can improve exercise endurance in the heat by reducing body temperature. This improvement allows individuals to exercise for longer periods without overheating. The researchers hope to investigate the specific mechanisms by which paracetamol achieves this effect.
Researchers at EPFL discovered that Full Body Illusions can be accompanied by a decrease in skin temperature, which is highly significant but small. The study used 3D head-mounted displays and robotic devices to induce the illusion, leading to widespread brain activity changes.
Climate change alters species interactions, potentially destabilizing entire ecosystems. The study reveals how temperature changes affect metabolic rates and consumer-resource interactions, leading to increased encounter rates between predators and prey.
Researchers have discovered that two little-known lemur species in Madagascar burrow underground and hibernate for three to seven months. The study suggests that primate hibernation may not be as rare or unique as previously thought, offering insights into the behavior of these close genetic relatives.
Researchers have discovered that rising temperature induces key changes in the dengue virus when it enters its human host, leading to a new approach for designing vaccines against the aggressive mosquito-borne pathogen. The study found that the virus's bumpy form is more efficient at infecting mammalian cells.
Researchers found that as cows' core body temperatures rise above 101°F, they stand for longer periods to disperse heat. Dairy producers can use this behavior to improve herd well-being and efficiency by providing cooling systems.
MIT researchers have created a new type of injectable gel that can withstand mechanical stress and remain durable over time. The gel, made with protein hydrogels, forms a reinforcing network when heated to body temperature, making it more suitable for long-term drug release and tissue engineering applications.
A team of researchers from UNIGE, Switzerland, discovers a molecular mechanism that links body temperature to the expression of 'clock genes' and local oscillators. They also find that this mechanism affects detoxification and drug metabolism, with potential implications for understanding human physiology.
Research reveals that American water shrews heat their bodies immediately before diving into cold water, increasing foraging efficiency and potentially allowing them to survive longer underwater. This unexpected behavior challenges prevailing dogma on the physiology of divers.
Scientists discovered that ion channels can assemble in different combinations to detect a wide range of temperatures. Researchers found that combining specific subunits can create hybrid channels with enhanced sensitivity, allowing the body to adapt to temperature changes.
Scientists have discovered that early horses, such as Sifrhippus, shrunk in size during the Paleocene-Eocene Thermal Maximum due to rising temperatures. This study provides evidence of a one-to-one relationship between temperature change and body size evolution.
Researchers discovered a correlation between temperature and body size in mammals by studying the evolution of early horses. As temperatures increased, their body size decreased, with some species shrinking up to 50% in just 130,000 years.
Researchers at Wake Forest University developed Power Felt, a thermoelectric device that converts body heat into an electrical current. The technology has potential uses in various applications, including powering mobile devices during emergencies or boosting battery power in vehicles.
A recent study published in the Journal of Leukocyte Biology found that mild fever-range hyperthermia enhances the generation and differentiation of CD8+ cytotoxic T-cells, which can destroy virus-infected cells and tumor cells.
Researchers created an artificial blood protein inspired by woolly mammoths' ability to conserve heat. The new hemoglobin can unload oxygen to tissues in cold conditions, making it suitable for use in hypothermia treatments during heart and brain surgeries.
Researchers found temperature differences of a few degrees Fahrenheit between parts of individual cells, which may impact health and disease. The study suggests that cells use differences in temperature to communicate, leading to potential new insights into biological mechanisms.
Researchers found that rapidly infusing cold IV fluid may not be effective in reducing body temperature quickly in children after a heart attack. This is crucial for minimizing neurological complications caused by cardiac arrest in pediatric patients.
Scientists create genetically modified mice with a built-in 'off switch' for their serotonin-producing cells, which control breathing, temperature regulation, and mood. The discovery sheds light on sudden infant death syndrome (SIDS) and depressive disorders, two conditions linked to low serotonin levels.
Research reveals that olanzapine, an atypical antipsychotic drug, promotes overeating, weight gain, and insulin resistance due to reduced body temperature. The study demonstrates altered peripheral glucose metabolism, contributing to impaired insulin sensitivity.
Researchers from Caltech have developed a new approach to measure dinosaur body temperatures, providing new insights into their physiology. They found that sauropod dinosaurs had body temperatures similar to those of most modern mammals, ranging from 35.7°C to 38.2°C.
Researchers from the University of Bonn analyzed fossil teeth from two giant herbivorous dinosaurs, Camarasaurus and Brachiosaurus, using a chemical thermometer to determine their body temperatures. The analysis revealed that both dinosaurs had a body temperature between 36 and 38 degrees Celsius.
A Swiss-US team found a new strain of leprosy bacteria in the Southern United States, transmitted through direct contact with armadillos. The study confirms inter-species contamination and highlights the importance of education and prudence to prevent further infection.
Female mosquitoes produce heat shock proteins to protect themselves from stress caused by hot blood meals, helping them digest the meal and maintain egg production. Tests on other insects also showed a similar response.
Researchers found that alpine marmots increase n-6 polyunsaturated fatty acid concentrations in their cell membranes before hibernation, preparing for low temperatures. This seasonal change is reversed upon hibernation termination and appears to be controlled by an endogenous clock.
Black bears experience large decreases in metabolism during hibernation, with metabolic rates remaining suppressed for several weeks after emergence. This finding has significant implications for potential applications in emergency medicine, such as reducing metabolic demand in patients experiencing stroke or trauma.
Research reveals that warmer temperatures in the tropics have a significant impact on life, even with small temperature increases. The study analyzed nearly 500 million temperature readings and found that metabolic rates increase faster in warmer temperatures, leading to greater effects in tropical regions.
A study by Monash University researchers reveals that bees use a 'hot' drink to warm up on cold days and a 'cool' drink in warmer weather. The bees preferred feeding from artificial flowers with warmer nectar, which helped them maintain an optimal body temperature for flight.
Researchers discovered that a specific brain region, the hypothalamus, plays a crucial role in aging and longevity. Mice engineered to produce more SIRT1 protein exhibited increased energy efficiency, delayed aging, and extended lifespan.
A recent study found an alarming pattern of population extinctions among lizard species due to rising temperatures. Climate change is predicted to cause 40% of local populations to go extinct, translating to around 20% of species disappearing by 2080.
A Princeton University-led team tracked fever and sickness behaviors in song sparrows using radio transmitters, discovering that different populations respond differently to infection. The study's findings may aid in forecasting where diseases will take hold, including West Nile virus.
Researchers at the University of Michigan have discovered a way to stabilize proteins by linking their stability to antibiotic resistance in bacteria. This method enables easy selection for stabilizing mutations, rendering proteins more resistant to unfolding and increasing their practical utility.
Researchers from Queen Mary University of London have identified a gene called nocte that interferes with the fly's ability to synchronize its body clock using temperature signals. Disabling this gene prevents both synchronization to light-dark cycles and temperature changes.
Therapeutic hypothermia, a medical treatment lowering body temperature to reduce tissue damage, will be published in an online open-access journal starting February 2010. The journal aims to advance understanding and application of this therapy in cardiology and neurotrauma.
Researchers found that smaller migrating blackcaps lose body temperature at night during stopovers to save energy, while heavier birds drop their metabolic rates less. This helps the birds accumulate more fuel and shorten their refueling stops.
Research by Stony Brook University researchers found that temperature explains much of the geographic variation in lifespan within species. For a diverse range of species, ambient temperature is the dominant factor controlling lifespan.
A multicentre trial found that paracetamol improved functional outcomes in patients with ischaemic stroke and baseline body temperature of 37°C. The study suggests a potential benefit of paracetamol in reducing body temperature and improving outcome for patients with acute stroke in this specific temperature range.
A study found that older adults with insomnia are less sensitive to changes in skin temperature, making it harder for them to detect when their body is too hot or cold. Warming the skin can facilitate sleep onset despite this decreased sensitivity.
A study found that blowing cool, dry air under football shoulder pads reduces core body temperature by up to 1 degree Fahrenheit and lowers heart rate significantly. This technology could help prevent heat-related illnesses in football players.
Induced hypothermia has been shown to reduce permeability of the blood-brain barrier and formation of small blood clots after injury. However, its use is underutilized in the UK and US due to lack of implementation strategies.
Researchers at Massachusetts General Hospital found that low doses of hydrogen sulfide can safely depress metabolism and cardiovascular function in mice, producing a suspended-animation-like state. The effects are reversible and do not depend on reduced body temperature.
Researchers at UT Southwestern Medical Center have developed a new tool to study the mysterious link between body temperature and multiple sclerosis symptoms. By tracking eye movements, they found that as body temperature rises, eye movement disorders worsen in people with MS.
Researchers found that increasing core body temperature improved vigilance, while decreasing skin temperature enhanced wakefulness in narcoleptic subjects. The study used a thermosuit to manipulate skin temperature and hot or cold food/drinks to adjust core body temperature.
A study of 10 postmenopausal women found that lower estradiol levels and higher luteinizing hormone (LH) levels correlated with poor sleep quality. Higher body temperature before and during sleep also contributed to poorer sleep efficiency and increased LH levels.
UC scientists developed a model to combine current clot-busting medication with below-normal body temperatures to improve ischemic stroke patient treatment. The study found that tPA, an enzyme used in standard stroke treatment, is less effective at lower temperatures, but a higher dosage may be needed.
A recent study by Dr Chris Byrne of the University of Exeter found that drinking large amounts of water during exercise has no effect on body temperature or performance. Runners lost an average of 1.5 litres of sweat per hour and reached high body temperatures, regardless of fluid intake.
Researchers studied emperor penguin breeding habits to understand how they conserve energy in extreme cold. The study found that deep body temperatures decrease during huddling, but core temperature remains constant, suggesting a trade-off between egg incubation and energy savings.
Researchers investigated how specific body characteristics affect the elderly's ability to regulate temperature during cold stress. The study found that certain traits, such as percent body fat and skeletal muscle mass, become more important with age, suggesting changes in the body's thermoregulatory responses.
Research reveals a metabolic defect underlying Huntington's disease, causing temperature dysregulation in brain regions like the striatum. The findings may explain symptoms like weight loss and could lead to new therapeutic avenues.
Researchers found that seals can dive to over 1,000 meters and for more than an hour without shivering, allowing their bodies to cool and reduce oxygen demand. This adaptation helps seals conserve oxygen and minimize brain damage caused by hypoxia during long dives.
Hydrogen sulfide gas induces a state of suspended animation in mice, maintaining normal blood pressure, which may help treat critically ill patients. The gas reduces metabolic rate and body temperature, but surprisingly does not decrease blood pressure.
Researchers found that prolonged calorie restriction caused a reversal in biomarkers of longevity, metabolic adaptations, and reduced DNA damage. The study also showed significant reductions in fasting insulin levels and core body temperature in intervention groups.
A new study at the University at Buffalo will explore the impact of cooling on exercise performance in people with multiple sclerosis (MS). The researchers aim to determine which cooling method is most effective and improve physical functioning and cardiovascular health.
Researchers found that hypothermia significantly reduced brain injury and death from oxygen loss in newborns. The study, led by Seetha Shankaran, M.D., at Wayne State University, showed a 44% lower rate of moderate to severe disability or death in infants treated with cooling compared to those in the control group.
Rising temperatures exacerbate cadmium's toxic effects on oysters, reducing their survival chances and increasing metabolic rate. As a result, future research will focus on the thermal tolerance of cold-blooded species affected by cadmium pollution.
Researchers found that exercising in cold water led to a 44% higher caloric intake compared to warm water or resting periods. The study suggests that environmental conditions during exercise may influence post-exercise appetite, and individuals should consider the kinds of foods they eat after exercise.
BioTime develops products for hypothermic surgery, aiming to increase surgical time and treat cardiovascular conditions. The company received an NIH grant to further research Hetacool, which could benefit patients undergoing complex surgeries and resuscitative procedures.
Researchers tested a cooling helmet on patients with severe ischemic stroke, finding that it preferentially cools the brain rapidly and profoundly. The study showed excellent functional recovery in younger patients but only 20% in elderly patients.
Researchers investigate how changes in polymer environment and glass transition temperature impact stability in medical implants. Hydration can affect polymer degradability and structural stability, highlighting the need for tailored material properties.