Tag: "trachea" at biology news

Most common lung cancers may begin in newly discovered cells

... mice, the tumors start deep in the lung, past the trachea and the branches to the lobes. Ciliated cells that catch debris give way to the bronchiolar cells called Clara cells. The airways end with the alveolar cells, which are the grape-cluster-like sacks lined with microscopic vessels, where oxygen and car...

Cells from amniotic fluid used to tissue-engineer a new trachea

... and ventilated long after the operation while the trachea heals; this can lead to many complications, including failure of the repair. Fetal surgery would eliminate these interventions and their resulting problems. "The fetus doesn't need the trachea, so the repair would have time to heal in utero," Fauza ...

Giant insects might reign if only there was more oxygen in the air

...ng can get only so big, and limits the size of the trachea that runs through it. When tracheal size is limited, so is oxygen supply and so is growth, Kaiser explained. Using the disproportional increases they observed among the beetles, the researchers calculated that beetles could not grow larger than ab...

Breathing easy: When it comes to oxygen, a bug's life is full of it

...t fly, noting how cells form into trachea, and how trachea branch to smaller trachea and eventually connect to form the tracheal network. His laboratory, which has identified more than ...

Bacteria from patient's dental plaque causes ventilator-associated pneumonia

...es of plaque from teeth and of secretions from the trachea were obtained from ICU patients on the day of admission and every third day thereafter, up to 21 days. Bronchial alveolar lavage samples also were collected from those suspected of having developed pneumonia. Samples from nine patients who were f...

'Virtual autopsy' helps identify drowning as cause of death

...ad fluid in the subglottic (below the vocal cords) trachea and main bronchi. Fourteen (50 percent) had sediment in the subglottic airways. Six (21 percent) had frothy fluid in the airways, and 25 (89 percent) had ground-glass opacity and thickening in the lungs. Twenty-five (89 percent) exhibited swelling o...

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