Articles tagged with Respiration
Researchers found a carbon-dioxide-sensitive neural circuit in ancient fish that likely evolved into the lungs of vertebrates. This discovery sheds light on the origins of air breathing and its role in vertebrate evolution.
Patients with COPD report fatigue, sleepiness, and impaired quality of life due to poor sleep quality. The study found an association between daytime hypoxemia and sleep efficiency in COPD patients.
A study led by Baylor College of Medicine researchers found that the master gene Atoh1 is essential for regulating breathing in newborn and adult mice. The lack of this gene in specific neurons leads to poor breathing and increased mortality rates.
Scientists have developed a spray-on coating made from chitosan that can delay the ripening of bananas. By slowing down respiration and killing bacteria, this coating can keep bananas fresh for almost two weeks. Researchers are now working on improving the coating to make it commercially viable.
A recent study analyzed respiration rates across aquatic and land ecosystems, revealing that warmer climates may lead to more CO2 release from marine and freshwater environments. This finding suggests a stronger response of aquatic ecosystems to temperature changes, potentially increasing their carbon dioxide emissions.
A molecular imaging study shows that ASV can improve cardiac function, exercise capacity, and sympathetic nerve activity in patients with congestive heart failure. The therapy was found to be just as effective as conservative treatments in reducing symptoms and improving overall health.
A study published in the American Journal of Respiratory and Critical Care Medicine found that hot, humid air triggers an increase in airway resistance in patients with mild asthma, leading to coughing and airway constriction. Inhaling an asthma drug before exposure to hot, humid air prevented this reaction.
A new study suggests that elite runners may perform best at 18-22 days after altitude training due to ventilatory acclimatization. The research aims to help athletes plan for major competitions by providing a more accurate estimate of the optimal return timing.
A new study finds that sleep disordered breathing and nocturnal hypoxemia independently predict both glycosylated hemoglobin levels and type 2 diabetes mellitus. Moderate and severe obstructive sleep apnea syndrome were significant predictors of prevalent T2DM and HbA1c levels, even after adjustment for obesity.
A new study at Karlstad University in Sweden shows that phthalates from PVC flooring materials are taken up by the bodies of infants, primarily through ingestion with food, breathing, and skin contact. The study's findings highlight the importance of considering non-food sources of exposure to banned chemicals like DEHP and BBzP.
Researchers compared chest tube drainage and talc slurry for pleurodesis to indwelling pleural catheters in treating lung effusions. The study found no significant difference in dyspnea between the two treatments, but IPCs reduced hospital time despite increasing adverse events.
A new technique called Deep Inspiration Breath Hold (DIBH) helps deliver the correct dose to the right place, sparing healthy tissue. The study found that treating patients during DIBH reduced the heart mean dose by 68% and lung radiation by 20-30%, offering a clinical benefit for breast cancer patients.
A new CDC study has found a significant association between symptoms of obstructive sleep apnea and probable major depression in US adults. The study, which surveyed 9,714 American adults, found that snorting, gasping, or pauses in breathing during sleep were associated with nearly all depression symptoms.
Researchers developed an analytical method that measures cardiorespiratory interaction using individual breaths and heartbeats, showing that postnatal age is an indicator of maturity in premature infants. The study found no correlation between cardiorespiratory interaction and birth weight or gestational age at birth.
A large-scale study found that children with sleep-disordered breathing are more likely to develop behavioral difficulties such as hyperactivity and emotional symptoms. The study suggests that snoring, mouth breathing, and apnea can have serious consequences for children's behavior and social-emotional development.
Research by Penn State found that breathing cold air during exercise causes uneven oxygen distribution throughout the heart, particularly in those with coronary artery disease. Healthy individuals can redistribute blood flow, but those with heart problems may not be able to compensate, making activities like shoveling snow dangerous.
A Yale University study found that C-section deliveries before 34 weeks of pregnancy for small-for-gestational-age babies are associated with higher odds of developing respiratory distress syndrome. The researchers analyzed data from 2,885 preterm babies and found a significant link between C-sections and breathing problems.
Researchers found that selective serotonin reuptake inhibitors (SSRIs) like fluoxetine can prevent sudden death in epilepsy patients by enhancing respiratory function. The study provides hope for developing treatments to lessen SUDEP risk, but further studies are needed to confirm its effectiveness in humans.
Researchers have developed a wearable device that monitors vital signs such as heart rate and respiration while tracking activity levels, providing continuous data for improved medical care. The technology has the potential to revolutionize patient care by reducing office visits and improving treatment outcomes.
Researchers studied geothermally-heated streams in Iceland to understand the impact of global warming on ecosystems. They found that temperature sensitivity of respiration is consistent across a range of organisms, regardless of environmental conditions.
Scientists at Queen Mary University of London study geothermally-heated streams in Iceland to explore how temperature affects respiration rates. The research reveals that the intrinsic temperature sensitivity of respiration is consistent across a range of organisms, adapted to different temperatures.
Researchers have discovered two types of bacteria that can survive at extremely cold temperatures, including the bottom of Arctic and Antarctic glaciers. The bacteria, Chryseobacterium and Paenisporosarcina, respire in ice at temperatures ranging from -27 to 24 degrees Fahrenheit, using acetate as an energy source.
Researchers discovered that temperatures and heat fluxes exceeding polycarbonate performance limits can cause lens degradation, exposing firefighters to toxic gases and burns. The study aims to inform efforts to improve the match between standard requirements and real-life conditions.
A Mediterranean diet combined with physical activity has been shown to improve some symptoms of sleep apnea, including reduced number of disturbances during REM sleep. This study found a greater adherence to the calorie-restricted diet and increased physical activity in the Mediterranean diet group compared to the prudent diet group.
A new method of surfactant delivery without intubation has been shown to reduce the need for mechanical ventilation and improve lung function in premature babies. The study found that infants treated with this method spent less time on mechanical ventilation and had a lower need for oxygen.
Researchers developed a noninvasive wireless system to measure breathing rates, alerting caregivers if breathing stops. The technique could increase surgery patient safety and reduce infant mortality by detecting sudden infant death syndrome (SIDS) without invasive monitoring.
Patients with previously diagnosed obstructive sleep apnea who stop using CPAP machines experience a significant increase in symptoms within days, including higher heart rates and blood pressure. The researchers suggest that this finding could improve the efficiency of clinical trials on OSA.
A study found that older women with sleep-disordered breathing were more likely to develop cognitive impairment or dementia than those without. Measures of hypoxia, not sleep fragmentation or duration, were associated with an increased risk.
Elderly women with sleep apnea are twice as likely to develop dementia in five years, according to a study published in the Journal of the American Medical Association. Oxygen deprivation may be the key factor leading to diminished cognition.
Researchers found that bacterial microbes inside the oil slick degraded it at a rate five times faster than those outside, accounting for its disappearance. However, the microbes did not multiply or produce new cells despite consuming energy from respiration, leaving scientists puzzled about their fate.
Panic attack sufferers experience significant physiological instability for at least 60 minutes before the attack, including changes in heart rate, respiration, and carbon dioxide levels. This finding challenges the common notion of sudden, unexpected panic attacks.
Researchers at Case Western Reserve University have restored breathing function in an adult rodent model of spinal cord injury by biologically regenerating lost nerve connections to the diaphragm. The enzyme-based technique showed promising results, with 80-100% breathing function restored and maintained for six months.
The American Institute of Aeronautics and Astronautics presented several awards to recognize outstanding achievements in air breathing propulsion systems, rocket propulsion systems, ground testing, and combustion engineering. Awards were also given for historical non-fiction literature and graduate research in air breathing propulsion.
Research suggests that pregnant women with severe sleep apnea may have a higher incidence of adverse pregnancy outcomes, including gestational diabetes and early preterm birth. The study found that moderate to severe sleep-disordered breathing was associated with these outcomes, particularly in overweight or obese women.
A novel device, Sonomat, monitors snoring and sleep-disordered breathing using a mattress overlay with embedded sensors. The study found that MAS devices reduced AHI and RMI in moderate and severe OSA patients.
Research suggests that analyzing breathing sounds while awake can accurately predict obstructive sleep apnea (OSA) severity. Breathing patterns and pharyngeal pressure play a significant role in OSA diagnosis, making sound analysis a viable diagnostic tool.
A study found that non-gated PET imaging with 4D computed tomography can produce more accurate tumor imaging for patients with irregular breathing. This approach may improve overall accuracy of tumor detection and inform clinicians about appropriate treatments.
Researchers found a two-fold higher risk for symptoms of sleep-disordered breathing and daytime sleepiness in urban schoolchildren with conduct problems like bullying. The study suggests that poor sleep may play into bullying or aggressive behaviors, highlighting the importance of good sleep for a healthy lifestyle.
A novel therapy that stimulates the nerve controlling diaphragm has been shown to improve breathing patterns, reduce blood oxygenation levels, and lower heart rate in patients with both heart failure and central sleep apnea. This treatment offers a promising alternative to existing therapies like CPAP for patients with heart failure.
A traditional Chinese herbal paste called Xiao Chuan has been shown to reduce the frequency of winter exacerbations of chronic obstructive pulmonary disease (COPD). The study, conducted in Beijing, found that patients treated with XCP experienced statistically significant reductions in steroid use and episodes of shortness of breath.
A new study introduces an improved algorithm to detect and remove motion artifacts from full-body MRIs. The Motion Artifact Removal by Retrospective Resolution Reduction (MARs) algorithm enables better retrospective reviews of images and reduces the need for additional imaging, leading to improved overall image quality.
A new study by Johns Hopkins Medicine shows that simple exercise can improve lung function and overall fitness in children with cystic fibrosis. Patients who increased their exercise capacity by 10 or more walking intervals showed significant improvements in lung function scores.
Researchers at Macquarie University identified two brain areas that work together to control breathing and swallowing in babies, which may be disrupted in SIDS cases. Understanding how these mechanisms fail could lead to new treatments for the condition.
A major UK study on anaesthesia complications shows obese patients are twice as likely to develop serious airway problems during a general anaesthetic. Routine monitoring of breathing with a capnograph could significantly reduce deaths and brain damage from such problems in intensive care units.
Researchers found that ultrafine particles can activate platelets, increasing the risk of cardiovascular disease, particularly in people with diabetes. The study provides new insights into air pollution's impact on heart health, emphasizing the importance of controlling exposure to pollutants for vulnerable populations.
A simple checklist designed by Johns Hopkins researchers significantly reduces ventilator-associated pneumonia cases by over 70% in Michigan hospitals. The intervention, combined with education and a culture of patient safety, saves tens of thousands of lives and millions of dollars in healthcare costs.
Patients transported by helicopter from accident scenes are more likely to survive than those brought to trauma centers by ground ambulance. Despite being more severely injured, they require less hospital resource utilization and ultimately fare better than those transported by ground.
A new breathing therapy, CART, has been shown to be more effective than traditional cognitive therapy in reducing panic symptoms by reversing hyperventilation. The treatment program teaches patients to breathe normally, reducing chronic and acute hyperventilation and associated physical symptoms.
A UMass Medical School study found a genetic link in apnea of prematurity (AOP), with identical twins showing an 87% correlation. The research suggests heredity may play a strong role in determining an infant's susceptibility to AOP, leading to the development of more effective treatments and screening methods.
A Loyola University Health System study found that 80.5% of hospitalized patients are at high risk for obstructive sleep apnea, a condition that can cause poor sleep quality and excessive daytime sleepiness. The study suggests that hospitals should consider administering a simple screening test to identify these patients.
New experiments confirm dragonflies grow bigger with more oxygen, but cockroaches don't. Fossilized insects may serve as proxies for ancient oxygen levels.
The new guidelines, published by Elsevier, provide detailed advice for healthcare professionals on how to treat cardiac arrest and continue treatment after the heart has been restarted. In many cases, therapeutic hypothermia is recommended to increase survival rates.
A new pre-operative questionnaire has been identified to help patients at risk of surgical complications. The STOP-BANG questionnaire assesses the risk of obstructive sleep apnea and is found to be effective in identifying patients with increased rates of postoperative complications.
A new study published in Pain found that a 'Yoga of Awareness' program improved fibromyalgia symptoms and functioning in women, with significant benefits in pain management and coping strategies. The program incorporated various yoga-based techniques, including postures, mindfulness meditation, and breathing exercises.
The 'Ask A Biologist' website provides educational content that grew from user requests, featuring expert answers from Arizona State University scholars. The site's popularity has expanded multimedia content, including a podcast competition and real-time interactions between users and experts.
Research suggests a potential viral link between HCMV and intestinal cancer in mice, where infected cells develop tumors. Meanwhile, scientists identify a key protein regulating breathing in mice and explore survivin as an anticancer target.
Researchers found that over 70% of particulates released during fires are ultrafine and can be inhaled into the lungs. Firefighters are at a higher risk of heart disease due to exposure to these harmful particles, particularly those with low physical fitness or health.
A new study reveals that astrocytes play a crucial role in regulating breathing by sensing changes in carbon dioxide levels in the blood. Activated astrocytes release ATP, which stimulates brain respiratory centers to adjust breathing rates accordingly.
The American Institute of Aeronautics and Astronautics (AIAA) will present several awards at the 46th Joint Propulsion Conference & Exhibit. These include the AIAA Air Breathing Propulsion Award to Bobby Berrier for his contributions to propulsion airframe integration, and the AIAA Propellants and Combustion Award to David G. Lilley fo...
Research highlights potential problems with breathing system filters, which allow substantial passage of bacteria and yeast when wet. Commonly available filters cannot be relied upon to prevent bacterial transfer, posing a risk to patients.