Articles tagged with Lungs
Researchers found that estrogen activates genes encoding nitric oxide synthases, leading to enhanced lung function and reduced ventilation support needs. Estrogen also prevented low blood pressure and closed the ductus arteriosus, a shunt that connects the pulmonary artery to the aorta.
Researchers develop anti-inflammatory therapy that blocks NF-kappa-B's movement into the nucleus, preventing excessive lung inflammation and damage. The treatment showed effectiveness in a mouse model of acute lung injury, offering hope for improved therapies for life-threatening pneumonia.
Researchers found five single nucleotide polymorphisms (SNPs) in ADAM33 that were more frequent in COPD patients than non-COPD smokers. These polymorphisms, particularly S1, are associated with lung abnormalities and progressive decline in lung function characteristic of COPD.
A recent study published in the Journal of the American College of Surgeons suggests that lung transplantation can be a viable option for patients older than 60, as long as they are younger than 70. The research found that mortality rates after one year were significantly higher for patients over 70 compared to those under 70.
A recent study has found a strong association between high waist circumference and decreased lung function. The research, analyzing over 120,000 participants, revealed that abdominal obesity is independently associated with impaired lung function, even when accounting for other factors such as smoking history and body mass index.
Researchers find that decreased PPAR activity may cause irreversible lung damage and pulmonary hypertension in children with heart defects. Boosting PPAR signaling with existing drugs could help restore healthy blood vessel balance and prevent disease.
Researchers found that a baseline threshold VO2max of 8.3 ml/kg/min can predict mortality in IPF patients, with those below the threshold having a higher risk of death. The study suggests VO2max as a more robust and clinically usable predictor than other measures.
New research shows individual COPD exacerbations increase repeat likelihood, driving disease progression. Patients may be 'brittle' during a subsequent eight-week period, requiring close monitoring and follow-up to prevent further exacerbations.
A new study reveals how pterosaurs used balloon-like air sacs to facilitate sustained activity and enable the evolution of large flying vertebrates. The system reduced bone density, addressing a major challenge in sustaining flight in large-bodied pterosaurs.
Scientists have turned a benign adeno-associated virus into a highly infectious form that can effectively deliver a gene to lung cells, potentially curing cystic fibrosis. The new strain was created by forcing evolution to increase infectivity several hundred-fold, overcoming previous limitations in gene therapy.
A new study compared recent avian strain H5N1 with genetic ressortants of the 1918 virus, showing that H5N1 replicates rapidly and induces a lethal cytokine storm. The results highlight the threat of an avian flu pandemic and emphasize the need for improved emergency preparedness.
Research suggests mice without AT1A protein have a significantly prolonged lifespan. This is attributed to reduced cellular oxidation, contributing to aging. Additionally, studies investigate the role of MT1-MMP in regulating hematopoietic progenitor cells' release from bone marrow.
A University of Iowa study found that smoking decreases a key protein in lung cells, leading to cell aging and damage. The team suggests targeting Werner's syndrome protein for developing treatments for smoking-related diseases like emphysema.
Researchers have successfully prevented cystic fibrosis lung disease in a mouse model by administering amiloride, a drug that inhibits hyperactive sodium channels. Early inhalation treatment prevents chronic lung damage and airway inflammation, providing a new therapeutic approach for the widespread genetic disease.
Researchers found that asthma patients exhibit chronic airflow changes in their lungs, even with medication use. The study used MRI to visualize airway obstruction and revealed that many airways remained narrowed over time.
A new technique combining CT with fiber-coated surgical microcoils successfully locates and removes small lung nodules using video-assisted thoracoscopic surgery. The procedure results in less pain and faster recovery times compared to traditional thoracotomy, allowing patients to return to work within two to three days.
The study found that institutions performing at least 20 lung transplants annually have the best overall patient survival rates and lowest number of deaths from the complex surgery. High-volume centers see over 95% chance of survival for organ recipients within the first month of recovery.
A study by Wajahat Mehal and colleagues found that aspirin reduces liver damage caused by acetaminophen overdose. In contrast, glucocorticoid therapy may cause varying levels of brain injury in neonates, depending on the type of steroid used. These findings have important implications for treatment strategies.
New data suggests that certain glucocorticoids, such as corticosterone, may be less harmful to fetal brain development than others like dexamethasone. This finding has significant implications for treating preterm infants and reducing the risk of cerebral palsy and cognitive impairment.
Researchers discovered a gene, EC-SOD, that reduces mortality risk for patients with acute lung injury. The study identified specific SNPs in the gene that decrease inflammation and severity of lung injury.
Researchers used scanning electron microscopy to study scorpion book lungs, revealing new variation and phylogenetic significance. The findings suggest a significant change in respiratory apparatus evolution early in modern scorpion history.
Researchers have identified three genes from the 1918 flu virus that enabled it to replicate in lung tissue, a key factor in its lethality. The discovery could help identify potential virulence factors in new pandemic strains and inform the development of new antiviral drugs.
Researchers have identified a gene mutation in SFTPA2 that is linked to an inherited form of idiopathic pulmonary fibrosis, a lethal lung disease affecting older adults. The same mutation is also associated with lung cancer.
Researchers discovered that phenazine molecules activate the transcription factor SoxR in Pseudomonas aeruginosa, influencing biofilm formation and gene expression. This finding suggests that tampering with phenazine trafficking could make antibiotics more effective against CF patients' infections.
UK researchers have identified a potential new avenue for improving lung development in premature babies, which could help alleviate respiratory problems. The study suggests that altering the function of a molecule called CaR could mature the lungs of very premature babies.
Research finds that progressive lung damage in CF patients can begin as early as infancy, even if lung function is normal shortly after diagnosis. Early intervention in the first six months of life may be key to slowing disease progression.
Cincinnati Children's scientists have discovered a critical gene that regulates lung maturation and surfactant production in newborns. Deletion of the Foxm1 gene led to immature lungs and respiratory distress in mice, highlighting its importance for human health.
University of Michigan researchers have developed a simple method for detecting contaminants in heparin, a blood-thinning drug used to prevent and treat blood clots. The new method uses potentiometric polyanion sensors to distinguish pure heparin from tainted heparin containing oversulfated chondroitin sulfate.
The study found that liver transplantation can significantly improve survival for patients with lung metastasis from primary liver cancer. The researchers identified liver transplantation as a key factor in extending patient survival, and recommended it as a standard treatment option for these patients. Additionally, the study suggeste...
Researchers found that patients receiving donated lungs may develop arrhythmias, including atrial fibrillation, within 30 days of transplantation. Herpes zoster, or shingles, is also a common complication after lung transplantation, but antiviral prophylaxis and treatment with the antibody RATG can be protective.
Researchers found that a healing process in patients with idiopathic pulmonary fibrosis (IPF) actually worsens symptoms. In healthy individuals, the body forms new blood vessels to promote wound healing, but in IPF patients, this process backfires, causing more shortness of breath.
A multi-institution team has identified 26 genes that are frequently mutated in lung adenocarcinoma, more than doubling the number of known associations with the disease. The study also detailed key pathways involved in lung cancer and described patterns of genetic mutations among different subgroups of patients.
UT Southwestern researchers suggest that RSV may persist in the lungs of children, leading to recurrent wheezing and chronic airway disease. The study's findings contradict current thinking on the destruction of ribonucleic acid viruses like RSV.
A study found that chest computed tomography (CT) can detect disease progression involving the lungs in high-risk patients with head and neck cancer. Indeterminate small solitary pulmonary nodules carry a higher risk of being malignant, highlighting the importance of aggressive evaluation and management.
Researchers identified two new genes and confirmed a third's role in increased uric acid levels, associated with up to 40-fold gout risk. Genetic testing may one day identify individuals at risk before symptoms develop.
The discovery of Aerosteon riocoloradensis reveals a unique bird-like respiratory system with air sacs. This finding supports the theory that birds evolved from dinosaurs and provides insights into their adaptation for flight.
TB bacteria coat themselves with mannose, making them attractive to lung cells that clean up unwanted sugar. This allows the bacteria to slip by the immune system, leading to latent infection. Two strains of TB have been found that do not use this sugar coating, suggesting specific interactions between strains and human immune systems.
A new dinosaur discovery from Argentina reveals the presence of air sacs in a 10-meter-long predatory dinosaur, Aerosteon riocoloradensis, which shares characteristics with birds. This finding supports decades of research suggesting that birds evolved from dinosaurs.
A new pig model for cystic fibrosis has been developed, closely mirroring the disease in human infants. The study's findings suggest that this model will aid in understanding the disease and may speed up the discovery of new treatments.
Researchers are conducting a new study to investigate the safety and effectiveness of airway bypass using drug-eluting stents for patients with advanced emphysema or COPD. The trial aims to provide a minimally invasive treatment option for patients who have limited treatment options, such as lung reduction surgery and inhalers.
Naren Vyavahare aims to extend the durability of bioprosthetic heart valves beyond 20 years through chemical linking of neomycin to tissue. Improved durability will enable surgeons to implant valves in younger patient populations with reduced risk of failure.
Researchers found that targeting Streptococcus milleri group (SMG) bacteria can disrupt Pseudomonas aeruginosa bacterial communities, leading to clinical benefits for patients. The approach has shown positive results in treating severe lung infections and may also be a treatment option for individuals with chronic lung infections.
Research suggests that eating broccoli may help patients with chronic lung disease by reducing oxidative stress and inflammation. The study found decreased levels of NRF2-dependent antioxidants and increased oxidative stress markers in lungs of smokers with COPD.
A study by Johns Hopkins researchers found that NRF2, a master gene regulating antioxidant and pollutant-detoxifying genes, is significantly decreased in smokers with advanced COPD compared to those without. This discovery could lead to new drug therapies targeting the condition.
Researchers discovered a way to restore function of CF airway cells by manipulating cellular quality control machinery. This technique could significantly reduce sticky mucus that clogs lungs and leads to life-threatening infections.
A new drug development project aims to create a modified beta-blocker that targets the heart without affecting lungs, benefiting hundreds of thousands of heart patients with respiratory conditions. The treatment has the potential to become the general medicine of choice for all heart patients due to its reduced side effects.
Researchers at University of Cincinnati are studying variations of rare lung disease Lymphangioleiomyomatosis (LAM) to better understand its manifestations and develop more effective treatments. The study will compare patients with and without pulmonary hypertension to identify key differences in symptoms.
Researchers at Texas Instruments have developed a low-cost, portable spirometer using microelectromechanical system (MEMS) technology. The device can measure airflow and volume in a patient's lungs and is ideal for remote monitoring by healthcare workers.
A Phase 2 trial of PTC124 demonstrated statistically significant improvements in CFTR-mediated chloride transport and lung function in patients with nonsense-mutation CF. The study showed that PTC124 induced chloride transport responses across various patient genotypes, offering a potential new treatment paradigm for this genetic disease.
A University of Michigan study found that cadmium exposure is a critical ingredient in smoking-related emphysema, increasing the risk by up to double. Even low-level exposure through second-hand smoke or other means can also increase lung disease risk.
Researchers found that Mycoplasma pneumoniae infection can block the lung's natural protective response to tobacco smoke, leading to increased oxidative stress and tissue damage. This co-factor may contribute to the development of COPD among smokers.
Researchers discovered insects use air bubbles to survive underwater, but find limits to depth and surface area. The study found bugs can dive as deep as 30 meters without bubble rupture.
Research at MIT shows how insects trap air on their bodies to create an external lung, enabling them to stay underwater indefinitely. The stability of the bubble depends on the spacing of hairs on the insect's abdomen, which must be balanced with surface area for breathing.
Researchers at Johns Hopkins have linked extreme fatigue in lung-scarring disease to poor sleep quality, finding a 25% loss in R.E.M. sleep time among patients. The study shows that people with stiffened lungs and sleep problems experience reduced physical and mental activity scores.
Researchers have found a way to limit immune system's response and reduce inflammation in lungs caused by influenza, using CD200R receptor. Mice treated with mimic of CD200 or antibody to stimulate CD200R showed reduced weight loss and inflammation.
Researchers at the Trudeau Institute have made a new discovery about how white blood cells are navigated to the lung airways during an influenza infection. The findings suggest that specific types of white blood cells can recognize chemical messages produced by infected lungs, allowing them to move into tissues and attack the virus.
NOAA researchers discovered that inhaled brevetoxins from red tides can damage DNA and attach to genetic code, potentially leading to cancer. Long-term exposure could add to cumulative DNA damage, increasing cancer risk.
Researchers at UIC have identified a novel function for an enzyme involved in tissue injury in acute respiratory distress syndrome (ARDS). The finding offers new therapeutic targets for lung inflammation and injury prevention.
Researchers from the University of Navarra and Applied Medical Research Centre have identified five genes that play a crucial role in the metastasis of breast tumors to the lung. These genes were found to be common to both animal models and human patients with breast cancer, offering new insights into the complex process of tumor sprea...
Researchers from Penn Medicine found that increased activity of the Wnt pathway leads to expansion of lung stem cells. This discovery could hold promise for therapies to repair lung tissue after injury or disease.