منابع مشابه
Airway mucus.
Hypersecretion of mucus is a cardinal sign of airways inflammation. Normally, secretion of mucus is designed to protect the respiratory portion of the lung from injury, but in disease its chronic overproduction in large airways (bronchi) and its appearance in small conducting airways (bronchioles) may be detrimental. Its relevance to patient discomfort and infection is generally accepted, but i...
متن کاملAltering Mucus Rheology to “Solidify” Human Mucus at the Nanoscale
The ability of mucus to function as a protective barrier at mucosal surfaces rests on its viscous and elastic properties, which are not well understood at length scales relevant to pathogens and ultrafine environmental particles. Here we report that fresh, undiluted human cervicovaginal mucus (CVM) transitions from an impermeable elastic barrier to non-adhesive objects sized 1 microm and larger...
متن کاملRisk of colonization of central venous catheters: catheters for total parenteral nutrition vs other catheters.
BACKGROUND Infected central venous catheters cause morbidity and mortality. OBJECTIVE To compare the risk for colonization of central venous catheters used for total parenteral nutrition with that of catheters used for other purposes. METHODS Retrospective review of prospectively acquired data on 260 patients with a stay in a surgical intensive care unit longer than 3 days. Single-lumen cat...
متن کاملBiological modeling of mucus to modulate mucus barriers.
A recent study using a transgenic mouse, whose intestinal mucus contains a molecule made of 12 copies of a domain found in many gelling mucins, demonstrates that it is possible to strengthen mucus properties in situ, leading to promising new treatment strategies in diseases in which the mucosal barrier is impaired.
متن کاملBronchial Mucus Transport
Effective clearance of inhaled particles requires mucus production and continuous mucus transport from the lower airways to the oropharynx. Mucus production takes place mainly in the peripheral airways. Mucus transport is achieved by the action of the ciliated cells that cover the inner surface of the airways (mucociliary transport) and by expiratory airflow. The capacity for mucociliary transp...
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ژورنال
عنوان ژورنال: BMJ
سال: 1951
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.1.4699.165