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Journal Article
Research Support, Non-U.S. Gov't
Impact of different intratracheal flows during lung decellularization on extracellular matrix composition and mechanics.
Regenerative Medicine 2018 July 2
AIM: To evaluate different intratracheal flow rates on extracellular matrix content and lung mechanics in an established lung decellularization protocol.
MATERIALS & METHODS: Healthy mice were used: 15 for decellularization and five to serve as controls. Fluids were instilled at 5, 10 and 20 ml/min flow rates through tracheal cannula and right ventricular cavity (0.5 ml/min) in all groups.
RESULTS: The 20 ml/min rate better preserved collagen content in decellularized lungs. Elastic fiber content decreased at 5 and 10 ml/min, but not at 20 ml/min, compared with controls. Chondroitin, heparan and dermatan content was reduced after decellularization.
CONCLUSION: An intratracheal flow rate of 20 ml/min was associated with lower resistance and greater preservation of collagen to that observed in ex vivo control lungs.
MATERIALS & METHODS: Healthy mice were used: 15 for decellularization and five to serve as controls. Fluids were instilled at 5, 10 and 20 ml/min flow rates through tracheal cannula and right ventricular cavity (0.5 ml/min) in all groups.
RESULTS: The 20 ml/min rate better preserved collagen content in decellularized lungs. Elastic fiber content decreased at 5 and 10 ml/min, but not at 20 ml/min, compared with controls. Chondroitin, heparan and dermatan content was reduced after decellularization.
CONCLUSION: An intratracheal flow rate of 20 ml/min was associated with lower resistance and greater preservation of collagen to that observed in ex vivo control lungs.
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