Xem 1-3 trên 3 kết quả Collectins surfactant
  • There have been major breakthroughs in lung surfactant (LS) research over the last two decades that have changed our concept of how and why the material works well at the lung air–water interface. From the initial ideas of a surface active material lining the alveoli to the seminal concepts of how low surface tension is reached, the classical ideas about Comroe’s “extraordinary juice” requires revision and re-thinking.

    pdf530p crius75 04-01-2013 12 3   Download

  • Collectins are a family of collagenous calcium-dependent defense lectins in animals. Their polypeptide chains consist of four regions: a cysteine-rich N-terminal domain,a colla-gen-like region,ana-helical coiled-coil neck domain and a C-terminal lectin or carbohydrate-recognition domain. These polypeptide chains form trimers that may assemble into larger oligomers. The best studied family members are the mannan-binding lectin,which is secreted into the blood by the liver,and the surfactant proteins A andD,which are secreted into the pulmonary alveolar and airway lining fluid....

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  • Encounters with Phagocytes Phagocytosis and Inflammation Phagocytosis of microbes is a major innate host defense that limits the growth and spread of pathogens. Phagocytes appear rapidly at sites of infection in conjunction with the initiation of inflammation. Ingestion of microbes by both tissue-fixed macrophages and migrating phagocytes probably accounts for the limited ability of most microbial agents to cause disease.

    pdf6p thanhongan 07-12-2010 19 4   Download

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