PT - JOURNAL ARTICLE AU - Voskresenska, Natalja AU - Voicehovska, Julija AU - Babikovs, Sergejs AU - Voicehovskis, Vladimirs AU - Lejnieks, Aivars AU - Skesters, Andrejs AU - Silova, Alise TI - Glutathione level in community-acquired pneumonia patients AID - 10.1183/1393003.congress-2017.PA988 DP - 2017 Sep 01 TA - European Respiratory Journal PG - PA988 VI - 50 IP - suppl 61 4099 - http://erj.ersjournals.com/content/50/suppl_61/PA988.short 4100 - http://erj.ersjournals.com/content/50/suppl_61/PA988.full SO - Eur Respir J2017 Sep 01; 50 AB - Glutathione, in its thiol-reduced form (GSH), is the most abundant antioxidant in the airway epithelial lining fluid. It acts as a vital intra- and extracellular antioxidant protecting oxidative/nitrosative stress, interceding the pro-inflammatory processes in the lungs.Aim: Relationship between pneumonia severity and GSH level have been studied.Methods: A case-conrol study took place at P. Stradins Clinical University hospital, Riga, Latvia. Community-acquired pneumonia (CAP) patients with no underlying chronic heart failure (n=32), both males and females of average age 69,0+7,2 and healthy control patients matched for age (n=20) were recruited. CURB 65 (confusion, uremia, respiratory rate, BP, age ≥ 65 years) score was used for CAP severity assessment. The level of plasma GSH was determined. CAP clinical pattern was followed up for 3 weeks.Results: Being compared to control group, GSH level was reduced in CAP patients (mean GSH was 1.12+ 0,22 mmol/L versus 1.60+0,16 mmol/L accordingly). There was no correlation between GSH level and CAP severity by CURB65. However, in 8 patients respiratory failure (RF) has developed. All the patients, in whom RF has developed, demonstrated GSH level below 1,1 mmol/L on admission.Conclusions: A low concentration of plasma GSH indicating low antioxidant capacity could act as a marker for inflammation-related OS in CAP patients for its management and/or risk of complications stratification.