Refined Study Design with Spirometry
Spirometry is a widely known clinical pulmonary test measuring volumes and flows expired by patients that is used to confirm a diagnostic of respiratory disease or follow treatment. SCIREQ’s flexiVent’s offers an analogous test for preclinical research with its Negative Pressure Forced Expiration (NPFE) extension.
FlexiVent – Used in Recent Pulmonary Fibrosis Research
Pulmonary fibrosis describes a condition in which the normal lung anatomy is replaced by a process of active remodeling, deposition of extracellular matrix and dramatic changes in the phenotype of both fibroblasts and alveolar epithelial cells. This condition can be idiopathic, as in idiopathic pulmonary fibrosis (IPF), or secondary to genetic disorders, autoimmune disorders or exposure to environmental toxins, chemical warfare, drugs, foreign antigens or radiation
Function Follows Form and Form Follows Function
The flexiVent makes assessing mechanical properties of the lung a relatively simple undertaking. However, understanding the underlying physiological processes and mathematical modelling can be daunting. A background in pulmonary structure, function, and of the forces at play within the system are key to making the most of the provided outcomes.
To Open or Close the Lungs – That Is the Question!
To Open or Close the Lungs – That Is the Question! Although often necessary, mechanical ventilation of small animals during pulmonary measurements can lead to both acute and chronic damage to their lungs, also known as ventilator-induced lung injury (VILI). The injury happens as a result of the frequent opening and closing of alveolar air […]
Longitudinal Studies With The flexiVent to Acquire Lung Mechanics
When developing an appropriate protocol to assess respiratory mechanics, there is a trade-off between accuracy of the measurements and the invasiveness of the technique. The flexiVent favours an invasive technique, producing results that are unparalleled in accuracy.
Pulmonary Hypertension Animal Models
A lack of validated pulmonary hypertension animal models is the reason why there aren’t enough studies exploring the pathophysiology and therapies for Pulmonary Hypertension (PH).
Circadian Rhythm Effects Lung Function
The circadian rhythm regulates many physiological parameters including lung function, immune responses, and cardiopulmonary function. The master circadian pacemaker is located in the anterior of the hypothalamus, also called the suprachiasmatic nuclei (SCN). The SCN receives inputs from environmental cues, such as light and temperature and modulates downstream vital biological functions in an oscillatory fashion.
Obese Mice Study Proves to Use the Ideal Weight
When working with obese mice, what weight to use when performing flexiVent measurements?
Oxygen Saturation (SPO2) Monitoring During Pulmonary Studies
Oxygen saturation is the fraction of oxygen-saturated hemoglobin relative to total hemoglobin (unsaturated + saturated) in the blood. A very precise and specific balance of oxygen in the blood is necessary to keep the body functioning properly. Monitoring these changes provides complimentary outcomes and a means to quantify subject stress during an experiment.
QuickPrime Measurements for Deeper Insight
QuickPrime Measurements for Deeper Insight What is the forced oscillation technique (FOT)? Simply put, the forced oscillation technique is: Pausing ventilation Sending a test signal to the lungs Measuring the subject’s response The test signal is either a single frequency (matching the breathing frequency of the subject) or made up of multiple frequencies. When adding […]