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Clinical Trial Summary

In the present study, 126 patients were enrolled (23 control, 38 non-septic and 65 septic patients). Blood samples were collected from septic patients at the intensive care unit (ICU) at three time points (T1-3): T1: within 12h after admission; T2: second day morning; T3: third day morning. Sampling points for non-septic ICU patients were T1 and T3. Exclusion criteria were patients under 18 years of age, unobtainable consent, end-stage renal disease requiring chronic dialysis or kidney transplantation and patients with malignancies needing palliative care. Not more than one sample (venous blood) was collected from control patients. Plasma presepsin levels were determined by an automated chemiluminescence-based Point of Care instrument while serum gelsolin levels were measured using an automated immune turbidimetric assay. Plasma presepsin concentrations were expressed as pg/mL, while serum gelsolin levels were expressed as mg/L. Data were compared with laboratory and clinical parameters. Patients were categorized by the Sepsis-3 definitions and 10-day mortality data were investigated. Presepsin:gelsolin ratio was evaluated in major sepsis-related organ dysfunctions including hemodynamic disturbances, respiratory insufficiency and acute kidney injury (AKI).


Clinical Trial Description

Presepsin is the 13-kDa soluble N-terminal fragment of the 55-kDa cluster of differentiation (CD) marker protein CD14, which is the receptor for lipopolysaccharide (LPS) and LPS-binding protein complexes. CD14 is a glycoprotein expressed mostly on the membrane surface of macrophages, monocytes and granulocytes which is released and degraded during inflammation after the recognition of pathogen-associated molecular patterns (PAMP), thus probably resulting in earlier elevation of plasma presepsin (PSEP) levels than the conventional sepsis biomarkers (C-reactive protein, procalcitonin). There is a growing body of evidence indicating increasing PSEP levels as kidney function decreases (e.g. during chronic kidney disease or sepsis-related AKI). Gelsolin (GSN) is a multifunctional protein existing in three different isoforms. Secreted or plasma GSN (MW = 83 kDa) is an essential component of the so-called extracellular actin scavenger system, therefore, decreasing serum GSN levels were reported in various clinical conditions (e.g. severe sepsis, multiple organ dysfunction syndrome (MODS), extensive trauma, acute liver failure, myocardial infarction). As albumin levels also tend to decrease in severe catabolic conditions, the simultaneous measurement of PSEP and GSN could prove to be useful regarding the diagnosis and prognosis of sepsis and sepsis-related organ dysfunction. Therefore, a new potential marker was investigated: the presepsin:gelsolin (PSEP:GSN) ratio. The main focuses of this study were analyzing the time course of PSEP:GSN ratio in non-septic and septic patients, while also investigating its diagnostic and prognostic utility in various sepsis-related organ dysfunctions in contrast to the conventional sepsis markers and clinical prognostic scores. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05060679
Study type Observational
Source University of Pecs
Contact
Status Completed
Phase
Start date January 1, 2018
Completion date February 29, 2020

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