التفاصيل البيبلوغرافية
| العنوان: |
Association between surfactant protein B + 1580 polymorphism and the risk of respiratory failure in adults with community-acquired pneumonia. |
| المؤلفون: |
Quasney MW (AUTHOR), Waterer GW (AUTHOR), Dahmer MK (AUTHOR), Kron GK (AUTHOR), Zhang Q (AUTHOR), Kessler LA (AUTHOR), Wunderink RG (AUTHOR), Quasney, Michael W1 (AUTHOR), Waterer, Grant W (AUTHOR), Dahmer, Mary K (AUTHOR), Kron, Grace K (AUTHOR), Zhang, Qing (AUTHOR), Kessler, Lori A (AUTHOR), Wunderink, Richard G (AUTHOR) |
| المصدر: |
Critical Care Medicine. May2004, Vol. 32 Issue 5, p1115-1119. 5p. |
| مستخلص: |
Objective: Pulmonary surfactant protein (SP)-B plays a vital role in the formation and function of surfactant in the lung. A genetic polymorphism (SP-B + 1580) is postulated to result in diminished activity of SP-B. The objective was to determine whether the SP-B + 1580 CC genotype is associated with an increased risk of respiratory failure and ARDS in adults with community-acquired pneumonia.Design: Prospective cohort of adults diagnosed with community-acquired pneumonia.Setting: Hospital system.Patients: We enrolled 402 adults > or = 18 yrs of age with community-acquired pneumonia; 158 were white, 243 were African American, and one was Asian.Interventions: Genotypic analysis was performed on DNA isolated from whole blood using polymerase chain reaction amplification and DdeI restriction enzyme digestion.Measurements and Main Results: We recorded the requirement for mechanical ventilation, the presence of acute respiratory distress syndrome (ARDS) or septic shock, and mortality. Sixty-three patients required mechanical ventilation, 12 patients developed ARDS, and 35 patients developed septic shock. Genotypic frequencies at the SP-B + 1580 site were T/T 183 of 402 (0.45), T/C 160 of 402 (0.40), and C/C 59 of 402 (0.15). Of the 59 patients who were C/C at the SP-B + 1580 site, 21 (0.356) required mechanical ventilation, compared with 26 of 160 patients (0.163) who were T/C and 16 of 183 (0.087) patients who were T/T (p < .001). ARDS developed in five of 59 (0.085) patients with the C/C genotype, compared with six of 160 (.038) patients with T/C and one of 183 patients with T/T (0.005, p < .009). Septic shock occurred in 12 of 59 (0.203) patients with the C/C genotype, compared with 13 of 160 (0.081) patients with T/C and ten of 183 (0.055) patients with T/T (p < .001). Mortality rate was not different between the three genotypes.Conclusion: Carriage of the C allele at the SP-B + 1580 site is associated with ARDS, septic shock, and the need for mechanical ventilation in adults with community-acquired pneumonia. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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