Table 2.

Quantification of Surfactant Proteins B and A in BAL

BAL
Patient no. 1  
 SP-B (ng/mL)  003.3 μg/mL 
 SP-A (μg/mL)  008.0 μg/mL  
 Total protein  1230 μg/mL  
 Phospholipids  0200 μg/mL  
Patient no. 2 
 SP-B (ng/mL)  002.4 μg/mL  
 SP-A (μg/mL)  006.7 μg/mL  
 Total protein  982.0 μg/mL  
 Phospholipids 089.0 μg/mL  
Normal range of proteins in BAL fluid 
 SP-B (ng/mL)  00.7 ± 0.1 μg/mL  
 SP-A (μg/mL) 01.5 ± 0.2 μg/mL  
 Total protein  73.0 ± 6.0 μg/mL  
 Phospholipids  30.0 ± 14.0 μg/mL 
BAL
Patient no. 1  
 SP-B (ng/mL)  003.3 μg/mL 
 SP-A (μg/mL)  008.0 μg/mL  
 Total protein  1230 μg/mL  
 Phospholipids  0200 μg/mL  
Patient no. 2 
 SP-B (ng/mL)  002.4 μg/mL  
 SP-A (μg/mL)  006.7 μg/mL  
 Total protein  982.0 μg/mL  
 Phospholipids 089.0 μg/mL  
Normal range of proteins in BAL fluid 
 SP-B (ng/mL)  00.7 ± 0.1 μg/mL  
 SP-A (μg/mL) 01.5 ± 0.2 μg/mL  
 Total protein  73.0 ± 6.0 μg/mL  
 Phospholipids  30.0 ± 14.0 μg/mL 

Quantitative analysis of patients’ surfactant protein content in broncheo alveolar lavage fluid (BAL) and tracheal aspirate (TA). Patients produced high amounts of surfactant protein B and A. Normal range data are from Krämer et al.35 

Abbreviation: ND, not determined.

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