Specialty canines showcased their explosive-detecting abilities, keeping Marines alive and focused on missions. The dogs' improved physiology, nutrition, and olfaction enabled them to detect IEDs even at full speed.
Researchers at the University of Illinois have debunked a widely held misconception about an often-prescribed drug, discovering that it works by binding to a lipid molecule essential to yeast's physiology. This finding could lead to better treatments for fungal infections and diseases caused by ion channel deficiencies.
Researchers have discovered the unique walking mechanism of dynein, a critical motor protein in every cell. The 'drunken sailor' gait allows the protein to navigate obstacles while performing transport functions, potentially shedding light on neurodegenerative diseases.
Researchers used advanced imaging technology to visualize minute structural elements within blood vessels and found elastin plays a key role in supporting arterial function. This knowledge could help understand and treat complications of cardiovascular disease, including high blood pressure and diabetes.
A new study reveals that mutations in BBS genes not only control incoming communication via cilia but also outgoing communication via hormone release, leading to restored normal body size, feeding, and metabolism in a small roundworm. This discovery opens up therapeutic avenues for the genetic disorder.
A team of researchers at RUB discovered how the human nose distinguishes between similar smells by analyzing the 3D structure of olfactory receptors and hydrogen bridge patterns. They found a specific pattern of chemical bonds that account for the specificity of olfactory sensors.
Researchers have discovered a protein family known as SWEET that plays a crucial role in transporting sucrose from leaves to other parts of the plant. The discovery could lead to increased crop yields and improved protection against pests, potentially even shedding light on human diseases like diabetes and obesity.
A new study published in the Journal of Applied Physiology found that brief high-intensity workouts can rapidly lower blood sugar levels in type 2 diabetics. The study, conducted on eight participants, showed improved glycemic control and increased skeletal muscle mitochondrial capacity.
A new study by Sandipan Chowdhury and Baron Chanda from the University of Wisconsin-Madison provides a model-free analysis of the free energy of channel opening, offering a rare example of thermodynamic reasoning. This approach circumvents the challenges of model fitting, providing a path forward for researchers in the field.
University of Missouri dietitians recommend families maintain healthy diet and exercise habits during the holiday season. Choosing healthy options at the Thanksgiving table and finding ways to stay active can help prevent weight gain and promote overall well-being.
A Heidelberg University Hospital study found that a single protein mediates pathological remodeling processes causing varicose veins. The protein triggers changes in wall architecture, leading to increased cell proliferation and enzyme production.
A group of international diabetes researchers have been awarded $4.5 million to engineer an artificial pancreas system that can monitor and adapt to the body's complex physiological changes. The system aims to improve quality of life for patients with type 1 diabetes by treating the condition in their natural environment.
A new study from the University of California at Merced found that adolescent girls with obesity have a significantly higher risk of developing elevated systolic blood pressure than their non-obese peers. Obesity was not as strongly linked to high blood pressure in boys, who were still more likely to develop it but to a lesser extent.
Research suggests exercise can stimulate the expression of two proteins thought to play a role in blood vessel health, reducing the risk of preeclampsia. Higher levels of VEGF and heat shock proteins were found in rats that exercised before and during pregnancy.
A study of 300 post-menopausal women found that obesity was associated with improved cognitive performance, particularly in memory and language tasks. The researchers propose that estrogen released from fat cells may play a protective role in preserving cognition.
The American Physiological Society's conference highlights the importance of considering sex and gender in cardiovascular health. Research findings show that women accumulate plaque more evenly inside major arteries, making heart disease a significant concern for women.
A new study reveals that plant miRNAs acquired through food intake can regulate human physiology by targeting specific genes. This discovery expands the functions of microRNAs and has significant implications for human health, metabolism, and disease treatment.
A new study published in American Journal of Physiology and Endocrinology Metabolism found that mice born to mothers on a high-fat diet before and during pregnancy have higher fat mass and smaller livers. Switching to low-fat diet reduces risk, according to researchers at Oregon Health & Science University.
Researchers at Kansas State University are working with NASA to develop a method for measuring astronauts' physical abilities, which will help ensure their safety in space. By using an obstacle course that simulates various lunar tasks, the team has found that treadmill tests can predict an astronaut's performance with high accuracy.
Researchers identified genes expressed when diamondback moth is attacked by parasitic wasp, which could lead to new control measures and resistance management strategies. The study provides a comprehensive analysis of the impact of parasitization on host physiology.
Research published in The Journal of Physiology identifies a link between maternal diet and child allergies, finding that polyunsaturated fatty acids improve gut immune cell response. This may reduce allergy risk by accelerating the development of a healthy immune system.
Researchers found that babies' brain activity changes from non-specific 'neuronal bursts' to localized activity in specific areas of the brain, indicating they can perceive painful stimulation as separate from touch. This shift may occur around 35-37 weeks gestation.
The Perspectives in General Physiology series provides an in-depth look at the mechanisms of sensory information processing, including visual, auditory, olfactory, and tactile processes. The series reveals key strategies used by researchers to quantify and characterize sensory information across multiple systems.
Biomedical education leaders propose a new model that breaks down silos between disciplines, teaching students to work across fields and study organisms at multiple levels. The new framework includes hands-on training and skills courses to help students tackle fundamental biological questions.
Researchers found that male rock ptarmigans can run up to 50% faster than females due to superior physiology, enabling them to defend larger territories and successfully breed. This study highlights the importance of considering physiological factors in understanding animal behavior and breeding success.
A University of Virginia study found that intense light enhances fear or anxiety in mice, while dimmer light reduces it. The researchers discovered that the visual pathway responsible for this behavior is in the rods and cones, which can be used to treat depression and anxiety disorders.
UT Southwestern researchers have found a way to regulate adult blood stem cells to overcome an immune response that leads to transplant rejection. The study successfully supports human and mouse blood stem cells through culture, enabling significant repopulation of healthy cells in rodent recipients.
Researchers from the University of Missouri-Columbia found that negative physiological changes associated with type 2 diabetes occur in people who transition from high activity levels to inactivity. Adding regular movement to daily routines can help prevent chronic diseases and weight gain, even if it doesn't lead to visible changes.
A recent review article highlights the positive effects of exercise on brain health and cognition, with aerobic exercise improving cognitive abilities in children and elderly adults. Strength training also shows promise, particularly for executive functions and memory.
Researchers analyze structure and physiology of trees as they grow, revealing how older, larger trees respond to environmental changes like CO2 levels and drought. The study sheds light on how these changes affect tree species distributions as the climate shifts.
Researchers at the University of Pennsylvania School of Medicine have identified a genetic basis for muscle endurance in animal study. The study found that mice lacking a specific gene exhibit increased endurance and fatigue resistance, similar to elite athletes.
A new study identifies a key residue M314 involved in BK channel opening, suggesting a different structural model for the channel. The findings provide important insights into the molecular mechanisms of BK channel activation and open up new avenues for research.
Researchers used a new technique to determine dinosaur body temperatures, finding that sauropod dinosaurs had temperatures similar to those of modern mammals. The study provides insights into dinosaur physiology and suggests alternative explanations for their metabolism and behavior.
A new study by University of Notre Dame researchers reveals that the malaria mosquito Anopheles gambiae exhibits daily rhythms in gene expression, with nearly 16% of its genome showing time-of-day specific changes. This discovery highlights potential targets for novel malarial control strategies and optimization of existing approaches.
Researchers used bifurcation diagrams to analyze bursting electrical activity in pancreatic beta cells, finding distinct behavioral patterns under critical parameter regions. Dynamical systems approaches are gaining importance in biology due to their ability to dissect complex systems and understand cell-signaling mechanisms.
The Journal of Dairy Science Most Cited Awards recognize contributors whose work significantly impacts research and the dairy industry. The awards were given to authors of the top-cited papers in four sections: Dairy Foods, Physiology and Management, Nutrition, Feeding and Calves, and Genetics and Breeding.
Research in baboon primates shows that even moderate nutrient deficiencies during critical periods of development can damage the pancreas and predispose to type 2 diabetes. The study found that young baboons whose mothers were undernourished were more likely to develop prediabetes before adolescence.
Researchers at University of Pennsylvania School of Medicine found that disrupting the circadian rhythms of fruit flies by feeding them at incorrect times led to reduced fertility. The study suggests a connection between diet and reproduction, highlighting the importance of timing in maintaining reproductive capacity.
A team of scientists flew microscopic worms into space to test the effectiveness of RNA interference (RNAi) as a treatment for muscle degradation caused by space travel. The experiment showed promising results, suggesting that RNAi could be used to prevent muscle loss in astronauts and help people suffering from similar conditions.
A recent study published in the Journal of Applied Physiology found that shorter warm-ups can result in less muscle fatigue and improved peak power output. The study suggested that sprint athletes may benefit from adopting a shorter and less strenuous warm-up for better performance.
Chronic estrogen exposure has been linked to an increase in superoxide, a compound that causes stress in the body, leading to hypertension. Resveratrol has been shown to reverse this effect, suggesting a potential therapeutic avenue for female patients using hormone replacement therapy.
A new University of Illinois study published in the Journal of Physiology found that a high-fat diet during pregnancy programs a woman's baby for future diabetes. Exposure to such a diet modifies gene expression in the livers of offspring, increasing the likelihood of early insulin resistance and diabetes.
Researchers have identified an enzyme that drives the production of estradiol, a potent form of estrogen, in human breast cancer tissue. The enzyme creates a positive cycle where estradiol sustains its own production, leading to aggressive and potentially deadly cancer types.
A four-year study aims to understand the role of serpin-2 in mosquito immunity and physiology. Researchers hope that targeting this molecule could make mosquitoes more susceptible to diseases like malaria.
A new study identifies the ion channel TRPA1 as the molecular sensor responsible for detecting weak acids in animals. This detection mechanism can trigger cell death and is why animals avoid weak acids, which are found in substances like vinegar and fermented foods.
A team of researchers has identified the urea cycle in diatoms as a key player in recycling inorganic carbon and nitrogen, enabling them to quickly recover from nutrient withdrawal and respond to changes in their environment. The discovery sheds new light on the evolutionary relationships between diatoms, plants, and animals.
Research suggests that a balanced diet with mono- and polyunsaturated fats can improve cardiac function in patients with heart failure. By providing sufficient energy to the heart, a damaged heart can maintain its normal metabolic profile and utilize its preferred energy source.
Scientists studying hot springs in Siberia have found that exotic bacteria produce and consume carbon monoxide, a surprising twist that challenges previous theories about the evolution of Earth's atmosphere. The discovery has implications for understanding the Great Oxidation Event and the early history of our planet.
Contributors from different disciplines discuss ion selectivity using crystal structures, electrophysiology, and computational methods. The series provides an ongoing forum for experts to discuss scientific questions and controversies.
A recent study published in the American Journal of Physiology found that prenatal exposure to thirdhand smoke can have as serious or even more negative impacts on an infant's lung development than postnatal or childhood exposure. Pregnant women should take precautions to avoid homes and places where thirdhand smoke is likely to be found.
New research reveals that tree leaves in different canopy positions respond to varying light conditions by changing shape and physiology. This adaptation allows trees to cope with stress and use resources more efficiently, with outer canopy leaves influencing the inner canopy's ability to utilize diffuse solar radiation.
Researchers have identified seminal fluid proteins that could affect the behavior and physiology of female mosquitoes, potentially leading to new control strategies. The study's findings may provide a foundation for innovative approaches to regulating mosquito reproduction, feeding, and mating behavior.
Research published in The Journal of Physiology found a link between maternal and offspring obesity in lambs, shedding light on the mechanisms of human obesity. Hormonal changes, including leptin and cortisol, were observed in lambs born to obese mothers, suggesting a predisposition to increased appetite and obesity.
Researchers found significant improvements in exercise performance during treatment with sildenafil compared to placebo, improving ventilatory efficiency and moderate exercise ability. The study suggests an overall improvement in physiology associated with single-ventricle heart disease.
Professor Gerard Karsenty is awarded the first Herbert A. Fleisch ESCEO-IOF Medal for his pioneering work in understanding skeletal development and physiology. The medal recognizes his outstanding achievements in basic bone science, including identifying Runx2 as a master gene of osteoblast differentiation.
Physiologist E. Paul Zehr uses Batman as a framework to discuss exercise and physical training, illustrating how the body responds to physical discipline. His approach connects science to popular culture, helping students understand physiology better.
A new study reveals that free radicals act as signal substances that increase the heart's contractions with the correct force. Persistent stress can lead to chronic levels of free radicals, potentially contributing to heart failure.
Researchers at Albert Einstein College of Medicine have developed nanoparticles containing nitric oxide that improve survival after life-threatening blood loss in hamsters. The therapy maintains blood circulation and protects vital organs by increasing levels of NO gas, which relaxes blood vessels and regulates blood pressure.
A study by radiologists suggests that radiologic case studies can effectively teach physiology to medical students, highlighting four broad physiologic principles: homeostasis, biologic energy use, structure-function relationships, and communication.
Scientists identified a previously unknown mechanism for massive endocytosis (MEND) in cells, where up to 75% of the cell plasma membrane can be reversibly engulfed. MEND preferentially targets low-ordered, cholesterol-containing membrane domains.