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  • 1
    Digitale Medien
    Digitale Medien
    Springer
    Intensive care medicine 20 (1994), S. 555-561 
    ISSN: 1432-1238
    Schlagwort(e): Platelet-activating factor ; Phospholipase A2 ; Apache II score ; Septic shock ; Trauma
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Objective To study blood and bronchoalveolar lavage (BAL) fluid levels of platelet activating factor (PAF-acether) and phospholipase A2 (PLA2) in patients with septic shock or following severe trauma. Design Prospective controlled clinical study. Setting An intensive care unit (ICU) of a university hospital. Patients and participants The study comprised 12 patients, 8 with septic shock and 4 with trauma, consecutively admitted to the ICU. Healthy volunteers were used as controls. Measurements and results Blood PAF-acether and plasma PLA2 levels were measured within 24 h after the patients arrival to the ICU. The Apache II score and outcome were registered. Median values for PAF-acether and PLA2 in the septic shock patients were 10.5×10−10 M and 5300 units/ml, respectively, whereas corresponding values in the trauma patients were 1.3×10−10M and 770 units/ml. Normal healthy individuals had no detectable PAF-acether in the circulating blood (〈0.5×10−10 M), and normal plasma PLA2 activity was 〈300 units/ml. Moreover, both PLA2 and PAF-acether levels correlated well with the severity of the disease as assessed by the Apache II scoring system (p〈0.01 for PLA2 andp〈0.05 for PAF-acether). In addition, PAF-acether and PLA2 were determined in BAL fluid of patients with septic shock (n=5) and trauma (n=3); increased PAF-acether levels were found in four patients with septic shock and one patient with trauma. Conclusion These results demonstrate a significant increase of both PLA2 and PAF-acether in the circulation of trauma patients, and a further increase in septic shock patients. It is possible that PAF-acether and PLA2 can be used as markers for the severity of the disease in septic shock and following severe trauma.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Springer
    International archives of occupational and environmental health 69 (1996), S. 5-13 
    ISSN: 1432-1246
    Schlagwort(e): Key words Glass industry ; Occupational cancer risks ; Oxidative stress ; Reactive oxygen species ; Malondialdehyde ; 8-Hydroxydeoxyguanosine ; Molecular epidemiology
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract  Previous epidemiological studies have indicated that industrial art glass workers have increased mortality risks for certain types of cancer and for cardio- and cerebrovascular disease. To test the hypothesis that increased oxidative stress might contribute to these increased mortality risks, the urinary levels of the lipid peroxidation product, malondialdehyde (MDA), and the oxidative DNA adduct, 8-hydroxydeoxyguanosine (8OHdG) were determined in 343 workers (230 men and 113 women) from the art glass industry in the southeast of Sweden. Of the study subjects, 199 (181 men and 18 women) were engaged in the process of glass production and were regarded as exposed, whereas the remainders performed clerical, warehouse and other service work and were regarded as unexposed. One hundred and sixteen were smokers (75 men and 41 women) and 215 were non-smokers (142 men and 73 women). The findings indicate that (a) exposure to industrial art glass work per se does not cause any major oxidative stress as measured by urinary levels of MDA and 8OHdG, (b) the effects from smoking per se are limited to increased lipid peroxidation among men, and (c) joint exposure to industrial art glass work and smoking may cause increased lipid peroxidation among men and increased DNA hydroxylation among both men and women. While these findings provide no evidence for increased oxidative stress due to industrial art glass work per se, the increased 8OHdG excretion in workers who smoke may be associated with a higher risk of developing free radical-dependent degenerative diseases including cancer.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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