Airway Hyperreactivity in Chlorine Exposed EIB Swimmers Model
Airway hyperresponsiveness (AHR) and exercise-induced bronchoconstriction (EIB) are conditions commonly affecting high-intensity athletes such as competitive swimmers.AHR and EIB in athletes have been well defined, however, studies focusing on immunological relevance in symptom onset may prove useful in developing preventative measures.
Cigarette Smoke Negatively Affects Pulmonary Structure and Function in an Apoe
The impact of cigarette smoke (CS) exposure on the respiratory system can best be captured by evaluating changes in lung function coupled with assessments of morphology and structural composition. These measurements are both quantitative and can capture the extent of disease severity such as degree, pattern, and location of tissue destruction.
Advantages of ALI Exposure – expoCube
Traditional submerged cell culture techniques have well-known limitations for aerosol exposure studies; for instance, the impact of exposure dilution within the media and the poor solubility/sedimentation of some exposure particles1. Air liquid interface (ALI) cultures are a technique whereby cells are grown on a microporous membrane insert, immersed in a media-containing well.
Tissue Baths in Respiratory Disease Models
Isolated tissue baths, also known as organ chambers, are tools that have been used in the discipline of pharmacology for over 150 years to evaluate tissues contractility and relaxation response upon exposure to stimuli including the addition of various agonists1. This technique was used in one of the most breakthrough scientific findings in 1980 when the endothelium pioneers, Furchgott and Zawadski, discovered the signalling molecule nitric oxide in the cardiovascular system2 for which they were awarded the 1998 Nobel Price in physiology.
Pulmonary Vascular Remodeling
Chronic obstructive pulmonary disease (COPD) is a chronic inflammatory disorder of the lungs that has been a major public health problem, and has been the third leading cause of death worldwide. A large proportion of COPD deaths (~75%) are linked to tobacco smoking, which is now the primary risk factor in the development of the disease.
Oscillometry In the Drug Development Process
The current COVID-19 pandemic has highlighted the need for a rapid development of therapeutic approaches to treat respiratory diseases. Yet, respiratory therapeutic candidates have until now displayed a low success rate . As a result, development times are long and only a few novel mechanism respiratory therapeutic entities have been introduced over the last decades.
Reversal of Emphysema by Restoration of Pulmonary Endothelial Cells
Chronic obstructive pulmonary disease (COPD) is a heterogeneous lung disease that is associated with exposure to inhaled irritants such as cigarette smoke and environmental pollutants. COPD is marked by airway inflammation and emphysema, leading to airflow obstruction and respiratory failure. The pathway to the development of COPD is yet to be fully understood but long-term inflammation is thought to be one of the main drivers.
Latest Advances in Preclinical SARS-CoV-2 Research
There has been incredible scientific effort and progress over the past two years geared at the protection and treatment of COVID-19. In this blog, we will highlight some significant recent advances in SARS-CoV-2 preclinical modelling, which use the inExpose to deliver inhaled target compounds and the flexiVent to characterize a full pulmonary function profile.
Dual Vaccination Protects Against Allergic Asthma in Mice
Dual vaccination against IL-4 and IL-13 using kinoids (a conjugate vaccine) is one of the therapeutic strategies suggested to neutralize the response induced by this type 2 inflammation. In recent studies by Conde et al 2021, House Dust Mite (HDM)-treated mice, which exhibit key characteristics of human chronic asthma, were used to test prophylactic and therapeutic dual vaccination efficiency in this allergic mouse model.
CX3CL1/CX3CR1 Signaling Pathway in Fungal-Associated Allergic Asthma: Good or Bad? The Devil is in the Method
Assessment of airway hyperresponsiveness (AHR) is considered the gold standard in experimental asthma models. In their recent publication, Dr. Steele and colleagues’ objective was to shed light on the immunopathogenic role of CX3CL1/Fractalkine because of its elevated levels in fungal-sensitized asthmatics.