Functions
- Binding of pathogens, allergens, and other molecules
- Increasing phagocytosis and chemotaxis of alveolar macrophages
- Induction of proliferation of immune cells
- Stimulation of proinflammatory cytokine production
- Modulation of the generation of reactive oxygen species
- Serving as a hormone in parturition
- Maintaining the structure of tubular myelin (an extracellular form of surfactant)
Read more about this topic: Pulmonary Surfactant-associated Protein A1
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“The mind is a finer body, and resumes its functions of feeding, digesting, absorbing, excluding, and generating, in a new and ethereal element. Here, in the brain, is all the process of alimentation repeated, in the acquiring, comparing, digesting, and assimilating of experience. Here again is the mystery of generation repeated.”
—Ralph Waldo Emerson (1803–1882)
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—William Wordsworth (1770–1850)