Ignite Creation Date:
2025-12-17 @ 9:33 PM
Ignite Modification Date:
2025-12-23 @ 6:42 PM
Study NCT ID:
NCT00745810
Status:
None
Last Update Posted:
2011-10-17 00:00:00
First Post:
2008-08-31 00:00:00
Is Possible Gene Therapy:
False
Has Adverse Events:
False
Brief Title:
Anesthetic Management and Remote Reperfusion Injuries
Sponsor:
None
Organization:
Study Overview
Official Title:
The Effects of Anesthetic Management on Oxidative Injuries After Cardiopulmonary Bypass
Status:
None
Status Verified Date:
2011-06
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
Seven ml blood sample were taken from arterial line after stabilization of anesthesia (T1), 30 minutes after total CPB (T2), one hour after weaning from CPB (T3) and 24 hours after weaning from CPB (T4). One ml blood sample was immediately wrapped in aluminum foil and kept in ice to immediate measurements of MetHb, COHb and CL (ROS). CL assay was carried out within 2 hours of sampling. Six ml samples remained was placed into tubes containing ethylenediamine tetraacetic acid. Serum were separated ( at 2000rpm for 10 minutes) immediately after sampling and stored at -80℃ for TAS assay, cytokine measurements, malondialdehyde (MDA) determination, complements and leukocyte elastase measurements. Those assay and measurements were carried out within 4 weeks of surgery.
Measurements of hemoglobin (Hb), COHb and MetHb: Hb, COHb and MetHb were measured immediately with ABL520, Radiometer, Copenhagen, Denmark).
Measurement of Redox balance: 0.2ml of fresh drawn blood was used to measure ROS production by lucigenin Chemiluminescence (CL) (detecting superoxide mainly) and luminal CL (detecting H2O2 and HOCl mainly) as previous study.The total antioxidant status in 20 uL of plasma was measured with a total antioxidant status (TAS) kit ( TAS CAL, Randox). Hemodilution effects with CPB, TAS levels at T2 were corrected with the hematocrits. Lipid peroxidation was determined by the thiobarbiturate reaction measuring the formation of MDA in plasma by TBARS assay kit (Cayman chemical co. USA) Cytokines analysis: Inflammatory cytokines were analysis with RayBio human inflammation antibody array 3 according to the manufacturer's instruction. (Cat# AAH-INF-3, RayBiotech Inc. Norcross, GA, USA).29 Measurements of complement activation and leukocytes activation: Complement Component 3a (C3a), C5a, and Human Terminal Complement Complex C5b-9 (C5b-9) were measured with human C3a EIA kit, human C5a EIA kit, Human Terminal Complement Complex C5b-9 kit, Life Science Inc.). Leukocyte elastase were measured by Elisa kit for Human Elastase 2,Neutrophil(NE, Life Science Inc.)
Measurements of hemoglobin (Hb), COHb and MetHb: Hb, COHb and MetHb were measured immediately with ABL520, Radiometer, Copenhagen, Denmark).
Measurement of Redox balance: 0.2ml of fresh drawn blood was used to measure ROS production by lucigenin Chemiluminescence (CL) (detecting superoxide mainly) and luminal CL (detecting H2O2 and HOCl mainly) as previous study.The total antioxidant status in 20 uL of plasma was measured with a total antioxidant status (TAS) kit ( TAS CAL, Randox). Hemodilution effects with CPB, TAS levels at T2 were corrected with the hematocrits. Lipid peroxidation was determined by the thiobarbiturate reaction measuring the formation of MDA in plasma by TBARS assay kit (Cayman chemical co. USA) Cytokines analysis: Inflammatory cytokines were analysis with RayBio human inflammation antibody array 3 according to the manufacturer's instruction. (Cat# AAH-INF-3, RayBiotech Inc. Norcross, GA, USA).29 Measurements of complement activation and leukocytes activation: Complement Component 3a (C3a), C5a, and Human Terminal Complement Complex C5b-9 (C5b-9) were measured with human C3a EIA kit, human C5a EIA kit, Human Terminal Complement Complex C5b-9 kit, Life Science Inc.). Leukocyte elastase were measured by Elisa kit for Human Elastase 2,Neutrophil(NE, Life Science Inc.)
Detailed Description:
None
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: