Articles tagged with Lungs
Early detection of COPD through a simple spirometry test can slow the loss of lung function, improve symptoms and quality of life, and prevent hospitalizations. Smoking cessation is the only known method to alter the loss of lung function seen in this disease.
Researchers discovered Stat3 regulates the inflammatory response in lung tissue, preventing excessive activation and tissue damage. The study suggests enhancing Stat3 activity could lead to new therapeutic drugs for immune-related diseases like COPD.
Research by Brigid Hogan and Tadashi Okubo found that Wnt signaling can induce a dramatic shift in lung progenitor cells' lineage commitment, generating intestinal cell types. This discovery sheds light on conditions such as Barrett's esophagus and holds potential for programming adult stem cells.
A new study found that D-dimer tests can eliminate the need for CT angiograms of the lungs in 60% of cases, where the result is negative. The test measures the amount of D-dimer in blood, a breakdown product of fibrin, which forms blood clots.
Researchers found that antibiotics can alter the gut microbiome, leading to increased lung sensitivity to allergens. This disruption can trigger a hyperactive immune response, producing allergy symptoms or even asthma. The study suggests that maintaining a healthy balance of gut microbes is crucial in regulating the immune system.
A recent study found that the gene TLR4 plays a crucial role in determining the lung's response to environmental toxins, particularly ozone. Mice with a functional copy of the gene were more susceptible to asthma-like symptoms when exposed to high levels of ozone.
Research reveals that air pollution has a debilitating effect on the lungs of obese children, with twice as strong associations compared to their normal-weight counterparts. The study found that increased inflammation due to obesity exacerbates the negative impact of air pollution on lung function.
A new study found that lung transplants significantly increase the survival rate of cystic fibrosis patients by almost 4.5 years. The study followed 247 patients with CF who were on the waiting list for lung transplantation and found that the risks associated with the surgery decreased over time.
Lung transplant recipients with specific TLR4 gene variants experienced reduced acute rejection rates, suggesting a novel approach to preventing transplant rejection. Researchers believe this finding could lead to improved patient outcomes and survival rates.
The University of Pittsburgh's novel clinical protocol has shown promising results in reducing immunosuppressive medication use for lung transplant patients. With over a year of follow-up, the approach has led to improved one-year survival rates and fewer complications associated with traditional treatments.
A recent study found that undersized hearts can adapt by increasing in mass without affecting function or survival rates. This discovery could expand the heart donor pool to meet growing demand, with 3,490 people currently waiting for a transplant.
Researchers found that RSV can remain dormant in lung tissue for over 100 days after initial symptoms disappear, suggesting a possible link to recurring wheezing and childhood asthma in infected children.
Researchers developed a multi-gene molecular expression assay test to identify the quiescent state after heart transplantation and predict future occurrence of rejection. The test can help manage transplant patients' immunosuppression regimens and reduce discomfort during constant monitoring.
Researchers are investigating the safety of heart and lung transplants for HIV-positive patients when viral infections are well-controlled. Transplant teams must balance anti-rejection drugs with anti-retroviral therapies to avoid complications.
Dr. Magdi Yacoub will receive the ISHLT Lifetime Achievement Award for his pioneering work in heart recovery using support devices. His approach, known as 'bridge to recovery,' has broadened the usage of heart assist devices and improved patient outcomes.
Four researchers are recognized for their work on normal lung development, RhoA's role in blood vessel disruption, and cardiovascular regulation. Their research aims to improve mortality and morbidity associated with premature birth and related conditions.
Researchers at UT Southwestern Medical Center have found evidence of a substance secreted by the lungs of a developing fetus that contains the key signal to initiate labor. The study, led by Dr. Carole Mendelson, suggests a link between a specific fetal lung protein and labor in humans.
A Cincinnati Children's Hospital study found a deficiency in lipoxins, key regulators of inflammation, in children with cystic fibrosis. This discovery provides impetus for developing novel therapeutics to decrease lung inflammation.
Researchers discovered a link between the Endothelial NO Synthase gene and Alevolar Capillary Dysplasia (ACD), a fatal lung disease affecting newborns. The study found that mice lacking this gene developed major defects in lung development, mirroring human cases of ACD.
The future of drug delivery involves 'smart' systems addressing issues like gut, skin, and lung penetration, promising improved patient compliance and treatment efficacy.
A recent study combines data from two studies comparing linezolid and vancomycin for ventilator-associated pneumonia caused by methicillin-resistant Staphylococcus aureus (MRSA). Linezolid was found to be more effective in eradicating the infection, with a 15% higher cure rate compared to vancomycin.
A new index, CTPE Index, quantifies clot size and predicts patient outcome in pulmonary embolism. Patients with high clot burdens are at increased risk of death and may require aggressive treatment.
Researchers found that pulmonary hypertension, a complication of sickle cell disease, causes significant mortality in adults. A study of 195 patients revealed that up to 40% of those with the condition developed high blood pressure in their lungs, leading to premature death.
Critical care doctors have released the first-ever guidelines for sepsis, recommending more aggressive recognition and diagnosis, timely antibiotic therapy, and maintenance of adequate blood pressure. The guidelines aim to standardize clinical management of severe sepsis and reduce mortality rate by 25 percent.
Researchers have discovered that bone marrow-derived stem cells are present in the lungs of mice with pulmonary fibrosis. This finding suggests a new approach to treating the disease using stem cell therapy. Understanding how these stem cells engraft and interact with the lung tissue could lead to improved treatment outcomes.
Researchers found that diesel exhaust particles trigger more severe allergic responses in individuals with certain genetic variations, particularly the GSTM1 and GSTP1 genes. This study suggests a new route of intervention for pollution-related lung health problems.
Researchers identified four asthma patient subsets defined by age of onset and presence/absence of eosinophils, suggesting different biological processes and mechanisms. Early-onset asthma was associated with allergies, while late-onset asthma showed rapid lung function loss.
A large trial found that interferon gamma-1b did not slow the progression of pulmonary fibrosis, but may improve survival in early-stage patients. The treatment's failure to prevent lung scarring was a major concern.
Researchers used CT scans to analyze lung tissue in anorexic patients and found structural changes that differ from those in healthy individuals. The findings suggest early therapy is crucial for patients with anorexia to avoid permanent damage to the lungs.
A randomized clinical trial found that endoscopic fetal treatment increased survival to 73 percent for infants with severe CDH, while a comparison group with standard care reached 77 percent. The strongest predictor of survival was the size of the fetus' lungs at diagnosis.
Researchers used endothelial progenitor cells from bone marrow to repair damaged blood vessels in rats with pulmonary arterial hypertension (PAH), reducing systolic pressure and improving microcirculation. The study suggests a regenerative approach that could lead to a new clinical therapy for this devastating disease.
Researchers evaluated the effect of new standards on lung donations, transplants, and waiting times. The number of donors increased by 119% and transplants by 114%, while waiting times decreased significantly.
Research reveals distinct differences between severe asthma in children and adults, with males under 18 predominantly affected and females over 18. Children with severe asthma exhibit deceptively good lung function, challenging existing guidelines that may lead to undertreatment.
Researchers have resolved a long-standing paradox surrounding lung collectins, finding they play two roles in the lungs: dampening and promoting immune responses. This discovery sheds light on how these versatile proteins protect against both harmful pathogens and excessive inflammation.
Researchers at Johns Hopkins University have developed tiny plastic particles that can release medicine over a prescribed period, without triggering an immune response. The particles are designed to dissolve slowly in the body and cross the mucus lining of air passages, reaching their target cells underneath.
A new study from UC Davis finds that the debris pile at Ground Zero released toxic metals, acids, and organics for at least six weeks after the 9/11 attacks. The conditions were brutal for those working without respirators.
An imaging study has revealed that smoking significantly reduces MAO-B activity in the hearts, lungs, kidneys, and spleens of smokers, impacting overall organ health. The study used radiotracers to track enzyme levels in peripheral organs.
Researchers found that higher melatonin levels in asthma patients at night lead to impaired lung function, suggesting all patients with asthma should avoid melatonin supplements until more is known about their safety. This study's findings support previous research linking melatonin to inflammation in asthma.
Researchers used PET scans to study MAO B activity in smokers and nonsmokers. The findings show reduced MAO B activity in peripheral organs by one-third to almost one-half, potentially leading to medical consequences.
Researchers developed a new composite score combining CT imaging and pulmonary function testing to assess treatment effects in young cystic fibrosis patients. A new test was also developed to predict increased mortality risk in idiopathic interstitial pneumonia patients with significant decline in pulmonary function.
A UCI biomedical engineer has received a $1.8 million grant to create viable lung tissue similar to that found in bronchial tubes, which will be injured to simulate asthma injuries. The goal is to better understand what causes scarring in the lungs of people with asthma and develop more effective treatments.
Researchers at Vanderbilt University have identified a distinct pattern of protein expression that can predict poor or good lung cancer prognosis. The protein profile was used to analyze tiny amounts of tumor tissue and accurately distinguish between different types of lung cancer.
Dr. Peter Ward, a renowned U-M pathologist, has received the American Thoracic Society's highest honor for his pioneering research on inflammation and lung biology. His work has significantly broadened the understanding of lung health and disease, influencing the career development of many clinicians and scientists worldwide.
Children with severe asthma defy conventional understanding of inflammation-driven disease, showing little to no evidence of ongoing inflammation and permanent changes in lung tissue despite long-term therapy. Despite aggressive treatment, many patients experience uncontrolled symptoms, frequent hospitalizations, and even death.
A study by Joanna Fowler and colleagues found significant reductions in MAO B activity in the heart, lungs, kidneys, and spleen of smokers compared to non-smokers, with reductions ranging from 33 to 46%. The findings suggest that smoking impacts peripheral organs and highlight the need for further examination of these consequences.
Researchers identified nearly 300 asthma signature genes involved in pathogenesis, including arginase, which triggers asthmatic symptoms. The discovery could lead to targeted treatments for individual patients.
Women's lung function improved significantly after quitting smoking, with improvements lasting longer than those of men. Cigarette smoking is a leading cause of COPD, and the study highlights the importance of quitting to reduce lung disease risk.
Researchers have developed a new regimen for lung transplant patients that reduces the need for anti-rejection drugs. The protocol involves giving fewer pills less often over time, with results showing 18 out of 20 patients doing well on lower doses of one mainstay anti-rejection drug, tacrolimus.
A national multicenter trial confirms that lung volume reduction surgery (LVRS) significantly improves the quality of life and life expectancy for patients with severe emphysema. The procedure, which involves removing diseased sections of lung tissue, allows patients to resume routine activities without breathing difficulties.
The study found that lung surgery improves survival rates and function for some patients with severe emphysema, particularly those with concentrated disease in the upper lobes. However, patients with more diffuse disease and greater exercise capacity are at higher risk of complications.
A major government study found that surgery provides significant improvements in pulmonary function, exercise tolerance, and quality of life for selected emphysema patients. The study identified specific criteria, including CT scan patterns and exercise capacity, to determine which patients are best suited for surgical therapy.
Researchers from National Jewish Health will present data on the prevalence of obstructive sleep apnea in difficult-to-control asthma patients. Additionally, they will discuss risk factors for 'hot tub lung' caused by nontubercular mycobacteria and a genetic mutation linked to mycobacterial infections.
A landmark cooperative study found that patients with upper lobe emphysema and low exercise capacity benefit more from lung volume reduction surgeries (LVRS), while those without these characteristics experience decreased survival and functional levels. LVRS improved lung function and exercise capacity, but had no long-term benefits.
A six-year study found that lung volume reduction surgery improves quality of life and survival rates for patients with upper lobe emphysema who are unable to exercise. The procedure did not show overall survival benefits, but identifying non-beneficial candidates is crucial.
A study of 73 patients with symptoms suggestive of SARS found that CT scans identified three common features: ground-glass opacification, lower lobe distribution, and peripheral distribution. These findings suggest that CT can be a valuable diagnostic tool for detecting SARS, particularly in cases where chest x-rays are normal.
A study of 589 postmenopausal women found a significant association between menopause and sleep-disordered breathing. Additionally, researchers discovered that statin use can significantly reduce tissue rejection and improve pulmonary function in lung transplant patients. These findings highlight the importance of evaluating sleep-diso...
Certican has been shown to target underlying causes of chronic allograft dysfunction and late graft loss, including acute rejection and vascular remodelling. The drug demonstrated superiority over azathioprine in reducing acute rejection episodes and pulmonary function decline.
Researchers found that aerosolized cyclosporine specifically enhances lung function in patients who deposit higher concentrations of the drug. Patients who deposited at least 5mg showed significant improvement in lung function over time.
Researchers found that mice lacking NKT cells remained resistant to asthma-inducing stimuli, while those with NKT cells developed airway hyper-reactivity and symptoms. The study suggests NKT cells play a key role in asthma development and may be targeted for treatment.
Researchers at the University of Washington used quantitative proteomic analysis to study Pseudomonas aeruginosa bacteria linked to cystic fibrosis. The study found that quorum sensing may help the bacteria adapt in the airway, leading to inflammation and fatal outcomes.