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Pharmacokinetics and absorption, distribution, metabolism and excretion profiling of tanimilast following an intravenous C-microtracer coadministered with an inhaled dose in healthy male individuals.
Drug Metab Dispos
January 2025
Global Clinical Development, Chiesi Farmaceutici SpA, Parma, Italy.
Tanimilast is an inhaled phosphodiesterase-4 inhibitor currently in phase III clinical development for treating chronic obstructive pulmonary disease and asthma. This trial aimed to characterize the pharmacokinetics, mass balance, and metabolite profiling of tanimilast. Eight healthy male volunteers received a single dose of nonradiolabeled tanimilast via powder inhaler (Chiesi NEXThaler [3200 μg]), followed by a concomitant intravenous infusion of a microtracer ([C]-tanimilast: 18.
View Article and Find Full Text PDFRisk of long covid in patients with pre-existing chronic respiratory diseases: a systematic review and meta-analysis.
BMJ Open Respir Res
January 2025
Department of Medicine, The University of Tennessee Graduate School of Medicine, Knoxville, Tennessee, USA
Background: An estimated 10-30% of people with COVID-19 experience debilitating long-term symptoms or long covid. Underlying health conditions associated with chronic inflammation may increase the risk of long covid.
Methods: We conducted a systematic review and meta-analysis to examine whether long covid risk was altered by pre-existing asthma or chronic obstructive pulmonary disease (COPD) in adults.
MiR-186-5p carried by M2 macrophage-derived exosomes downregulates TRPP2 expression in airway smooth muscle to alleviate asthma progression.
Int Immunopharmacol
January 2025
Ciechanover Institute of Precision and Regenerative Medicine, School of Medicine, The Chinese University of Hong Kong Shenzhen Guangdong China; The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong Shenzhen & Longgang District People's Hospital of Shenzhen Shenzhen Guangdong China. Electronic address:
Bronchial asthma (asthma) is a chronic inflammatory disease of the airways that remains an unresolved problem. Reportedly M2 macrophages and exosomes play a role in inflammation, including asthma. We investigated the roles of M2 macrophage-derived exosomes (M2-Exos) effect in asthmatic progression by using ovalbumin (OVA) induced asthmatic mice model.
View Article and Find Full Text PDFA new computational framework for simulating airway resistance, fraction of exhaled nitric oxide, and diffusing capacity for nitric oxide.
PLoS One
January 2025
Transfers, Interfaces and Processes, Université libre de Bruxelles, Brussels, Belgium.
In this paper, we present a new computational framework for the simulation of airway resistance, the fraction of exhaled nitric oxide, and the diffusion capacity for nitric oxide in healthy and unhealthy lungs. Our approach is firstly based on a realistic representation of the geometry of healthy lungs as a function of body mass, which compares well with data from the literature, particularly in terms of lung volume and alveolar surface area. The original way in which this geometry is created, including an individual definition of the airways in the first seven generations of the lungs, makes it possible to consider the heterogeneous nature of the lungs in terms of perfusion and ventilation.
View Article and Find Full Text PDFRole of interleukin-4 receptor α polymorphism in patients with asthma and its correlation with asthma severity.
Monaldi Arch Chest Dis
January 2025
Department of Respiratory Medicine, N.K.P. Salve Institute of Medical Sciences and Research Center, Lata Mangeshkar Hospital, Nagpur, Maharashtra.
Asthma is a heterogeneous disease characterized by chronic airway inflammation. It is defined by the history of respiratory symptoms such as wheeze, shortness of breath, chest tightness, and cough that vary over time and intensity, together with variable expiratory airflow limitation. A personal history or a family history of allergy is the factor most strongly associated with the development of asthma.
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