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  2. Hydroxyproline - Wikipedia

    en.wikipedia.org/wiki/Hydroxyproline

    Hydroxyproline is a major component of the protein collagen, [3] comprising roughly 13.5% of mammalian collagen. Hydroxyproline and proline play key roles for collagen stability. [4] They permit the sharp twisting of the collagen helix. [5]

  3. Dipalmitoylphosphatidylcholine - Wikipedia

    en.wikipedia.org/wiki/Dipalmitoylphosphatidylcholine

    Dipalmitoylphosphatidylcholine (DPPC) is a phospholipid (and a lecithin) consisting of two C 16 palmitic acid groups attached to a phosphatidylcholine head-group.. It is the main constituent of pulmonary surfactants, which reduces the work of breathing and prevents alveolar collapse during breathing.

  4. Phosphatidylcholine - Wikipedia

    en.wikipedia.org/wiki/Phosphatidylcholine

    1-Oleoyl-2-palmitoyl-phosphatidylcholine. Phosphatidylcholines (PC) are a class of phospholipids that incorporate choline as a headgroup.They are a major component of biological membranes and can easily be obtained from a variety of readily available sources, such as egg yolk or soybeans, from which they are mechanically or chemically extracted using hexane.

  5. Secondary amino acid - Wikipedia

    en.wikipedia.org/wiki/Secondary_amino_acid

    In nature, proline, hydroxyproline, pipecolic acid and sarcosine are well-known secondary amino acids. Proline is the only proteinogenic secondary amino acids. Other secondary amino acids are non-proteinogenic amino acids. In protein, hydroxyproline is incorporated into protein by hydroxylation of proline.

  6. Pulmonary surfactant - Wikipedia

    en.wikipedia.org/wiki/Pulmonary_surfactant

    Compliance is the ability of lungs and thorax to expand. Lung compliance is defined as the volume change per unit of pressure change across the lung. Measurements of lung volume obtained during the controlled inflation/deflation of a normal lung show that the volumes obtained during deflation exceed those during inflation, at a given pressure.

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  8. Procollagen-proline dioxygenase - Wikipedia

    en.wikipedia.org/wiki/Procollagen-proline_di...

    Procollagen-proline dioxygenase catalyzes the following reaction: L-proline + alpha-ketoglutaric acid + O 2 → (2S, 4R)-4-hydroxyproline + succinate + CO 2. The mechanism for the reaction is similar to that of other dioxygenases, and occurs in two distinct stages: [3] In the first, a highly reactive Fe(IV)=O species is produced.

  9. Dying To Be Free - The Huffington Post

    projects.huffingtonpost.com/projects/dying-to-be...

    Responses are left blank for states that did not respond to the survey, answer all survey questions or fully document Medicaid benefits on secondary sources such as websites. The squeeze of regulation has left the door open for more opportunistic forces, such as cash-only clinics and shady doctors.

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