Clinical trial NCT03535441: HMGB1 Release From Hemorrhagic Shock Patients
Official title: Evidence for SIRT1 Mediated HMGB1 Release From Kidney Cells in the Early Stages of Hemorrhagic Shock
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Intensive Care Unit
Hemorrhagic Shock
Adult Disease
Keywords: hemorrhagic shock
HMGB1
Lead sponsor: First People's Hospital of Chenzhou
Sponsor class: OTHER
First posted: 2018-05-24
Enrollment: 18
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Observational model: CASE_CONTROL
Time perspective: PROSPECTIVE
Sampling method: PROBABILITY_SAMPLE
Study population: Healthy volunteers OR Hemorrhagic shock (HS) patients enrolled in ICU

Brief summary: It is reported that high mobility group box 1 (HMGB1), a non-histone nuclear protein, can serve as an alarmin with damage associated molecular patterns to activate immune responses in the early stages of hemorrhagic shock (HS). However, the origin of HMGB1 and how it is released following HS is poorly understood. In this study, we teased out this mechanism. We try to record the concentration of serum HMGB1 protein following HS in clinical patients.

Detailed description: The study was approved by the First People's Hospital of Chenzhou, Hunan, P.R. China. Consent was obtained from patients in their hospital course. Eighteen patients were enrolled for each group. In addition, Acute Physiological and Chronic Health Evaluation II (APACHE II) score was used to evaluate the severity and morbidity of HS patients Serial blood samples were collected at indicated time points on hospital admission for HS patients (0, 2, 4, 8, 24, and 72 h following HS). Levels of HMGB1 were detected by ELISA according to the kit manufacturer's instructions.

Eligibility criteria: Inclusion Criteria:

Hemorrhagic shock (HS) was defined as out-of-hospital systolic blood pressure (SBP) of 70 mmHg or less or SBP ranging 71 to 90 mmHg with a heart rate of 108 beats/min or more.

Exclusion Criteria:

pregnancy, \<18 years old, more than 2,000 mL of intravenous fluids or blood before enrollment, hypothermia, drowning, asphyxia, burns, isolated penetrating head injury, time of call received by dispatch to study intervention longer than 4 h, known prisoners, and transfer from another hospital

Primary outcomes:
measure: serum HMGB1 concentration
timeFrame: 24 hours following hemorrhagic shock
Secondary outcomes:
Other outcomes:
Locations:
city: Chenzhou
country: China
facility: The First Hospital of Chenzhou
state: Hunan
Study officials:
References:
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citation: Rabadi MM, Xavier S, Vasko R, Kaur K, Goligorksy MS, Ratliff BB. High-mobility group box 1 is a novel deacetylation target of Sirtuin1. Kidney Int. 2015 Jan;87(1):95-108. doi: 10.1038/ki.2014.217. Epub 2014 Jun 18.
citation: Hwang JS, Lee WJ, Kang ES, Ham SA, Yoo T, Paek KS, Lim DS, Do JT, Seo HG. Ligand-activated peroxisome proliferator-activated receptor-delta and -gamma inhibit lipopolysaccharide-primed release of high mobility group box 1 through upregulation of SIRT1. Cell Death Dis. 2014 Oct 2;5(10):e1432. doi: 10.1038/cddis.2014.406.
citation: Hwang JS, Choi HS, Ham SA, Yoo T, Lee WJ, Paek KS, Seo HG. Deacetylation-mediated interaction of SIRT1-HMGB1 improves survival in a mouse model of endotoxemia. Sci Rep. 2015 Nov 2;5:15971. doi: 10.1038/srep15971.