Anest. intenziv. Med. 2005;16(4):191-196

Prognostic significance of apoptotic and genomic plasma free DNA levels in critically ill patientsIntensive Care Medicine - Original Paper

E. Žďárský3, J. Fanta2, P. Waldauf1, L. Slavkovský1, F. Duška1, E. Čtrnáctá1, J. Pachl1
1 Klinika anesteziologie a resuscitace, 3. LF UK a Fakultní nemocnice Královské Vinohrady, Praha
2 Chirurgická klinika, 3. LF UK a Fakultní nemocnice Královské Vinohrady, Praha
3 Ústav farmakologie, 3. LF UK, Praha

Objective:
To establish the trends and prognostic value of plasma levels of the free apoptotic (aDNA) and genomic DNA (gDNA) in patients with failure of vital functions.


Type of study:
Prospective observational study.


Setting:
University Dept. of Anaesthesiology/CCM and Dept. of Surgery, Charles University, 3rd School of Medicine, Prague.

Material and Methods:
94 critically ill patientts were evaluated. The blood samples for DNA analysis were taken on the day of admission, the third and fifth day of hospital stay. The following data were collected: ICU admission diagnosis, age and gender, APACHE II, SOFA, ICU stay in days, ICU survival, CRP and WBC count. The analysis was done on a sequencer (ABI PRISM 377) using of the original phenol extraction method. The results were correlated to the plasma free DNA levels of 86 healthy volunteers (normal value = 100%).

Results:
The contribution of aDNA to the total plasma DNA in the critically ill was ~16fold greater than the contribution of gDNA. Apoptotic DNA levels were highest on the day of admission and declined thereafter (P < 0.001), whilst the opposite was true for gDNA (P < 0.001) The difference in trends and the aDNA and gDNA levels in correlation to normal levels was found statistically significant (P < 0.001). Apoptotic DNA on the day of admission significantly differs in survivors and non-survivors (P < 0.05).

Conclusion:
The free apoptotic DNA plasma level on admission could be a predictor of mortality in critical illness.

Keywords: plasma free DNA; apoptotic DNA; genomic DNA; critical care; predictors of mortality

Published: August 1, 2005  Show citation

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Žďárský E, Fanta J, Waldauf P, Slavkovský L, Duška F, Čtrnáctá E, Pachl J. Prognostic significance of apoptotic and genomic plasma free DNA levels in critically ill patients. Anest. intenziv. Med. 2005;16(4):191-196.
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