Study in an Ex-vivo Thrombosis Model With Human Umbilical Vein Endothelial Cells (HUVEC)-Perfusion (HUVEC)
Human Umbilical Vein Endothelial Cells (HUVEC)-Perfusion
Evaluation of fibrin and platelet deposition on a human umbilical endothelial cell surface in perfusion chamber experiments using human whole blood.
Open-label, non interventional study Perfusion chamber experiment will be performed in 30 healthy patients. The Impact of different pH-solutions on thrombus lysis will be evaluated in an in-vitro second step
Outcome:
D-Dimer content of the thrombus reflecting the size of the thrombus.
Studieoversigt
Status
Betingelser
Detaljeret beskrivelse
All Subjects will have two perfusion chamber experiment as follow with an estimated maximum of blood loss of 165ml:
Before blood perfusion, perfuse the system including the chambers with human umbilical vein endothelial cell coated glass slides (HUVEC), with sodium chloride (NaCl) (0.9%), to ensure no leaks and to remove all air bubbles.
Blood is drawn from a vein in the arm with a Surflo® Winged Infusion Set, 19G (Terumo Europe, Leuven, Belgium) with a pump (Masterflex® L/S™, Cole-Parmer Instrument Company, Vernon Hills, Illinois, USA). Five mL of blood is discarded before each perfusion.
Three in serial placed flow chambers (with HUVEC) heated to 37°C are used. They are made of a Plexiglas block through which a cylindrical hole of 0.2 cm in diameter is machined. The aorta pieces are perfused at 10 mL/min for 5 minutes, followed by a 30 seconds perfusion with NaCl (0.9%).
The plasmin degraded thrombus D-Dimer content will be further evaluated under different conditions (different pH solutions).
Undersøgelsestype
Tilmelding (Forventet)
Kontakter og lokationer
Studiesteder
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Vienna, Østrig, 1090
- Medical University Vienna- Dept. of Clinical Pharmacology
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Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
- Age > 18 years
- Written informed consent
Exclusion Criteria:
- Use of any medication
- Current diseases
- Anemia
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
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D-Dimer content of the plasmin degraded thrombus
Tidsramme: Assessment will follow after all perfusion chamber experiments (1 week)
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Assessment will follow after all perfusion chamber experiments (1 week)
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Samarbejdspartnere og efterforskere
Sponsor
Efterforskere
- Ledende efterforsker: Michael Wolzt, MD, Medical University Vienna
Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Faktiske)
Studieafslutning (Forventet)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- HUVEC-Version1
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