COPD
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Quality of life (QoL) is being recognized as an important outcome when evaluating chronic obstructive pulmonary disease (COPD) patients. This study aims at identifying the relation between QoL parameters and mortality and morbidity in COPD patients by using the St. George Respiratory Questionnaire (SGRQ). ⋯ The activity score of SGRQ was found to be more useful than other scores (Cox regression analysis). Not only PFT but also QoL questionnaires are useful in determining the prognosis of COPD. QoL questionnaires provide a valid and standardized estimate of the overall impact of COPD, and can complement spirometric measurements of baseline assessment of patients in routine practice.
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Superoxide dismutase-3 (SOD3) is a major extracellular antioxidant enzyme, and previous studies have indicated a possible role of this gene in chronic obstructive pulmonary disease (COPD). We hypothesized that polymorphisms in the SOD3 gene would be associated with COPD and COPD-related phenotypes. We genotyped three SOD3 polymorphisms (rs8192287 (E1), rs8192288 (I1), and rs1799895 (R213G)) in a case-control cohort, with severe COPD cases from the National Emphysema Treatment Trial (NETT, n = 389) and smoking controls from the Normative Aging Study (NAS, n = 472). ⋯ Quantitative CT data were not available in EOCOPD. The SNPs were not associated with lung function variables or COPD status in any of the populations. In conclusion, polymorphisms in the SOD3 gene were associated with CT emphysema but not COPD susceptibility, highlighting the importance of phenotype definition in COPD genetics studies.