mortality/aging
• mice die within 2 to 3 hours of birth
|
respiratory system
• capillary beds in lungs are immature
• however, vascular smooth muscle development is normal
|
• at birth, mice exhibit pulmonary congestion
|
• between E16.5 and E18.5, mice exhibit reduced dilation of the saccules, thick mesenchyme and a lack of squamous type I cells unlike in wild-type mice
|
• type I cell maturation is disrupted
|
• mature type I cells are absent
|
• type II cell maturation is disrupted and cells lack stored pulmonary surfactant
|
atelectasis
(
J:106543
)
• at birth
|
• at birth
|
• mice produce less surfactant protein than wild-type mice
|
cardiovascular system
• capillary beds in lungs are immature
• however, vascular smooth muscle development is normal
|
• at birth, mice exhibit pulmonary congestion
|