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About 25% of lung cancer cases worldwide are not attributable ... smokers target the distal airways and favour adenocarcinoma histology. Environmental tobacco smoke (ETS) is a relatively weak ...

The lungs contain more than 300 million tiny, stretchy air sacs known as alveoli. Breathing in and out causes these air sacs to expand and deflate. Breathing out is usually an involuntary response ...

Emphysema is a progressive lung disease that damages the tiny air sacs called alveoli within the lungs. Over time, the alveoli break apart, trapping large pockets of stale air inside the lungs.

Another factor in lung elasticity is surface tension. This is specific to the tiny sacs of the alveoli. Small and fragile, they rely on a substance known as a surfactant to provide the surface ...

1 Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan 2 Division of Molecular ...

Obviously, the prevention There is a pillar in the fight against pathology. The main risk factor remains the smoke but it is ...

This study identifies Ki-67 as a critical modulator of the intensity of pro-inflammatory gene expression governing neutrophil ...

With obstructive lung disease (asthma or COPD), an even greater ... In contrast, those particles able to penetrate to the very small airways and alveoli are likely to be deposited by sedimentation ...