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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Microvascular membrane permeability in high surface tension pulmonary edema.

Pulmonary edema was induced in dogs by an aerosol of detergent dioctyl sodium sulfosuccinate. The permeability of the pulmonary microvascular membrane was assessed by cannulating an afferent tracheobronchial lymphatic and comparing the lymph-to-plasma total protein concentration (CL/CP) during high lymph flows induced by increasing left atrial (LA) pressure after detergent aerosol. Base-line CL/CP of 0.69 +/- 0.02 fell to 0.55 +/- 0.03 with increased LA pressure alone. CL/CP fell to 0.47 +/- 0.02 when LA pressure was increased following detergent, 0.51 +/- 0.04 following an aerosol of the vehicle in which the detergent was dissolved, and 0.73 +/- 0.10 following intravenous alloxan. In additional animals protein concentration of the airway edema fluid was compared with that of plasma. The ration of protein concentration of airway fluid to plasma was 0.63 +/- 0.08 following detergent aerosol, 0.64 +/- 0.10 following increased LA pressure, and 0.94 +/- 0.09 following administration of alloxan. These data indicate no major increase in pulmonary microvascular permeability following detergent aerosol and support the concept that pulmonary edema is the consequence of reduced interstitial perimicrovascular hydrostatic pressure caused by increased alveolar surface tension.[1]


  1. Microvascular membrane permeability in high surface tension pulmonary edema. Bredenberg, C.E., Nieman, G.F., Paskanik, A.M., Hart, A.K. J. Appl. Physiol. (1986) [Pubmed]
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