Project description:After dozens of clinical trials, there are still no Food and Drug Administration-approved drugs that improve mortality in acute respiratory distress syndrome (ARDS). These poor results may be caused in part by three unique pharmacological challenges presented by ARDS: (1) Patients with ARDS are fragile because of concomitant multiple organ dysfunction, so they do not tolerate off-target side effects of drugs; (2) inhaled drug delivery is impeded by the column of proteinaceous fluid covering the injured alveoli; and (3) ARDS is heterogeneous in its underlying pathophysiology, so targeting one pathway is unlikely to improve most patients. To address these three pharmacological problems, I present the development of pulmonary endothelium-targeted liposomes (PELs). PELs are approximately 100-nm drug carriers coated with antibodies that bind to the pulmonary capillary endothelium. In model organisms, intravenously injected PELs strongly concentrate drugs in alveoli, even in animal models displaying severe, spatially heterogeneous pathology similar to severe ARDS. By concentrating drugs in inflamed alveoli, PELs solve pharmacological challenge (1) above. By being obligate intravenous medications, they solve challenge (2). Finally, because PELs can be loaded with at least three drugs, they can solve challenge (3) with combination drug therapy. My colleagues and I are currently testing PELs loaded with numerous candidate drugs in mouse models of ARDS, and we are testing drug distribution in live pigs and ex vivo human lungs. We aim to use such preclinical validation to move PELs into a partnership with industry, and then to patients.

| S-EPMC5427718 | biostudies-literature

Calibration Myths in the 2019 American Thoracic Society/European Respiratory Society Spirometry Technical Standards.

Project description: Not available

| S-EPMC7365376 | biostudies-literature

Asthma in the Americas: An Update: A Joint Perspective from the Brazilian Thoracic Society, Canadian Thoracic Society, Latin American Thoracic Society, and American Thoracic Society.

Project description:Asthma affects a large number of people living in the Americas, a vast and diverse geographic region comprising 35 nations in the Caribbean and North, Central, and South America. The marked variability in the prevalence, morbidity, and mortality from asthma across and within nations in the Americas offers a unique opportunity to improve our understanding of the risk factors and management of asthma phenotypes and endotypes in children and adults. Moreover, a better assessment of the causes and treatment of asthma in less economically developed regions in the Americas would help diagnose and treat individuals migrating from those areas to Canada and the United States. In this focused review, we first assess the epidemiology of asthma, review known and potential risk factors, and examine commonalities and differences in asthma management across the Americas. We then discuss future directions in research and health policies to improve the prevention, diagnosis, and management of pediatric and adult asthma in the Americas, including standardized and periodic assessment of asthma burden across the region; large-scale longitudinal studies including omics and comprehensive environmental data on racially and ethnically diverse populations; and dissemination and implementation of guidelines for asthma management across the spectrum of disease severity. New initiatives should recognize differences in socioeconomic development and health care systems across the region while paying particular attention to novel or more impactful risk factors for asthma in the Americas, including indoor pollutants such as biomass fuel, tobacco use, infectious agents and the microbiome, and psychosocial stressor and chronic stress.

| S-EPMC8996271 | biostudies-literature

Standardization of Spirometry 2019 Update. An Official American Thoracic Society and European Respiratory Society Technical Statement.

Project description:Background: Spirometry is the most common pulmonary function test. It is widely used in the assessment of lung function to provide objective information used in the diagnosis of lung diseases and monitoring lung health. In 2005, the American Thoracic Society and the European Respiratory Society jointly adopted technical standards for conducting spirometry. Improvements in instrumentation and computational capabilities, together with new research studies and enhanced quality assurance approaches, have led to the need to update the 2005 technical standards for spirometry to take full advantage of current technical capabilities.Methods: This spirometry technical standards document was developed by an international joint task force, appointed by the American Thoracic Society and the European Respiratory Society, with expertise in conducting and analyzing pulmonary function tests, laboratory quality assurance, and developing international standards. A comprehensive review of published evidence was performed. A patient survey was developed to capture patients' experiences.Results: Revisions to the 2005 technical standards for spirometry were made, including the addition of factors that were not previously considered. Evidence to support the revisions was cited when applicable. The experience and expertise of task force members were used to develop recommended best practices.Conclusions: Standards and consensus recommendations are presented for manufacturers, clinicians, operators, and researchers with the aims of increasing the accuracy, precision, and quality of spirometric measurements and improving the patient experience. A comprehensive guide to aid in the implementation of these standards was developed as an online supplement.

| S-EPMC6794117 | biostudies-literature

The American Thoracic Society/European Respiratory Society 2019 Spirometry Statement and Occupational Spirometry Testing in the United States.

Project description: Not available

| S-EPMC7159414 | biostudies-literature

Reply to Townsend: The American Thoracic Society/European Respiratory Society 2019 Spirometry Statement and Occupational Spirometry Testing in the United States.

Project description: Not available

| S-EPMC7159417 | biostudies-literature

Treatment Decisions for Unrepresented Patients: American Thoracic Society/American Geriatrics Society Policy Statement Lacks Sufficient Guidance.

Project description: Not available

| S-EPMC7667899 | biostudies-literature

An official American Thoracic Society/European Respiratory Society statement: research questions in COPD.

Project description:Chronic obstructive pulmonary disease (COPD) is a leading cause of morbidity, mortality and resource use worldwide. The goal of this official American Thoracic Society (ATS)/European Respiratory Society (ERS) Research Statement is to describe evidence related to diagnosis, assessment, and management; identify gaps in knowledge; and make recommendations for future research. It is not intended to provide clinical practice recommendations on COPD diagnosis and management. Clinicians, researchers and patient advocates with expertise in COPD were invited to participate. A literature search of Medline was performed, and studies deemed relevant were selected. The search was not a systematic review of the evidence. Existing evidence was appraised and summarised, and then salient knowledge gaps were identified. Recommendations for research that addresses important gaps in the evidence in all areas of COPD were formulated via discussion and consensus. Great strides have been made in the diagnosis, assessment and management of COPD, as well as understanding its pathogenesis. Despite this, many important questions remain unanswered. This ATS/ERS research statement highlights the types of research that leading clinicians, researchers and patient advocates believe will have the greatest impact on patient-centred outcomes.

| S-EPMC9487818 | biostudies-literature

American Thoracic Society and Marron Institute Report. Estimated Excess Morbidity and Mortality Caused by Air Pollution above American Thoracic Society-Recommended Standards, 2011-2013.

Project description:Estimates of the health impacts of air pollution are needed to make informed air quality management decisions at both the national and local levels. Using design values of ambient pollution concentrations from 2011-2013 as a baseline, the American Thoracic Society (ATS) and the Marron Institute of Urban Management estimated excess morbidity and mortality in the United States attributable to exposure to ambient ozone (O3) and fine particulate matter (PM2.5) at levels above the American Thoracic Society-recommended standards. Within the subset of counties with valid design values for each pollutant, 14% had PM2.5 concentrations greater than the ATS recommendation, whereas 91% had O3 concentrations greater than the ATS recommendation. Approximately 9,320 excess deaths (69% from O3; 31% from PM2.5), 21,400 excess morbidities (74% from O3; 26% from PM2.5), and 19,300,000 adversely impacted days (88% from O3; 12% from PM2.5) in the United States each year are attributable to pollution exceeding the ATS-recommended standards. California alone is responsible for 37% of the total estimated health impacts, and the next three states (Pennsylvania, Texas, and Ohio) together contributed to 20% of the total estimates. City-specific health estimates are provided in this report and through an accompanying online tool to help inform air quality management decisions made at the local level. Riverside and Los Angeles, California have the most to gain by attaining the ATS recommendations for O3 and PM2.5. This report will be revised and updated regularly to help cities track their progress.

| S-EPMC6944400 | biostudies-literature

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