STUDY OBJECTIVES Acute respiratory failure (ARF) can be treated with either invasive mechanical ventilation (IMV) or noninvasive mechanical ventilation (NIMV), which can spare the complications of artificial airways. To evaluate the efficacy of an integrated approach using negative pressure ventilation (NPV) with iron lung and noninvasive positive pressure ventilation (NPPV), we performed a pro...

• The vessels of the unexpanded foetal lung react more strongly to certain stimuli than those of the expanded foetal or newborn lung; they probably react more strongly than the vessels of adult lungs. Thus acetylcholine and histamine caused profound vasodilatation in unexpanded foetal lungs and comparatively weak dilatation in expanded foetal lungs. Noradrenaline caused a high degree of vasocon...

background although dolomite is classified as a relatively non-toxic, nuisance dust, little information exists as to its potential to produce respiratory disorders following occupational exposure. the purpose of this study was, therefore, to evaluate the possible effects, if any, of heavy inhalation exposure to this chemical on the prevalence of respiratory symptoms, functional impairments and ...

Covid19 has impacted the whole world drastically, Lakhs of people are getting infected every day and thus it's difficult to detect Covid infection in huge population. Main cause death due is lungs. Infection lungs detected by CT-Scans Lungs, but since doctors need time analyze CT-Scan also, they can't do it 24 into 7. Hence, many who extra medical care for lungs, wait analysis that whether thei...

The static properties of the lungs have been explained by energy-change considerations on the elasticity, but this article explains the elasticity of the lungs by entropy-change considerations. Entropy of the individual lobule was defined by application of stochastic geometry on aggregated alveolar polyhedrons. Entropy of the lungs is the result of integrating a number of lobular entropies thro...

We hypothesized that exposure of murine fetuses to environmental toxins, such as nitrofen, during early embryogenesis alters vasculogenesis. To address our hypothesis, we assessed protein levels of endothelial cell-selective angiogenic factors: angiopoietin (ANG)-1, vascular endothelial growth factor (VEGF), and mediator of VEGF signaling, VEGF receptor-2 [fetal liver kinase (Flk)-1], a transme...

In the 3rd century BC Erasistratus of Chios recognised that breathing depended on muscular action. By 1555 Vesalius had described assisted positive pressure ventilation and in 1667 Hooke used a pair of bellows to keep a dog alive in his demonstration to the Royal Society. By the mid-1800s it was recognised that air would be drawn into the lungs through the mouth and nose if a subatmospheric pre...

Abstract On the basis of a sample 424 languages or dialects, this article provides typological-comparative investigation designations for three major internal organs torso, ‘heart’, ‘liver’, and ‘lungs’. While colexification patterns are relatively unconstrained, data show skewing in morphologically complex terms: ‘heart’ ‘liver’ often serve as head nouns terms ‘lungs’, but reverse is rare. Ano...