TY - JOUR
T1 - Inter-α-inhibitor heavy chain H4 and sepsis-related coagulation disturbances
T2 - Another link between innate immunity and coagulation
AU - Larsen, Julie Brogaard
AU - Pihl, Rasmus
AU - Aggerbeck, Mathies Appel
AU - Larsen, Kim Michael
AU - Hvas, Christine Lodberg
AU - Johnsen, Nanna
AU - Christensen, Mette G
AU - Praetorius, Helle
AU - Hvas, Anne-Mette
AU - Thiel, Steffen
N1 - © 2023 The Authors.
PY - 2023/2
Y1 - 2023/2
N2 - BACKGROUND: The protease inhibitor inter-α-inhibitor heavy chain H4 (ITIH4) has been described as an acute-phase reactant and could potentially aid in sepsis monitoring and prognostication.OBJECTIVES: To investigate ITIH4 plasma levels in sepsis patients compared with healthy controls and to examine the association between ITIH4 and acute-phase response markers, blood coagulation, and organ dysfunction in sepsis.METHODS: We performed a post hoc study to a prospective cohort study. Patients with septic shock (n = 39) were enrolled upon intensive care unit admission. ITIH4 was analyzed using an in-house immunoassay. Standard coagulation parameters, thrombin generation, fibrin formation and lysis, C-reactive protein, organ dysfunction markers, Sequential Organ Failure Assessment score, and disseminated intravascular coagulation (DIC) score were registered. ITIH4 levels were also investigated in a murine
Escherichia coli sepsis model.
RESULTS: ITIH4 did not display acute-phase behavior as mean ITIH4 levels were not increased in patients with septic shock or in
E. coli-infected mice. However, ITIH4 exhibited large interindividual variation in patients with septic shock compared with healthy controls. Low ITIH4 was associated with sepsis-related coagulopathy, including a high DIC score (mean ITIH4: DIC, 203 μg/mL vs non-DIC, 267 μg/mL,
P = .01), low antithrombin (
r = 0.70,
P < .0001) and decreased thrombin generation (mean ITIH4: first peak thrombin tertile, 210 μg/mL vs third peak thrombin tertile, 303 μg/mL,
P = .01). ITIH4 showed moderate correlation with arterial blood lactate (ρ = -0.50,
P < .001) but only weak correlations with C-reactive protein, alanine transaminase, bilirubin, and Sequential Organ Failure Assessment score (all, ρ < 0.26,
P > .05).
CONCLUSION: ITIH4 is associated with sepsis-related coagulopathy but is not an acute-phase reactant during septic shock.
AB - BACKGROUND: The protease inhibitor inter-α-inhibitor heavy chain H4 (ITIH4) has been described as an acute-phase reactant and could potentially aid in sepsis monitoring and prognostication.OBJECTIVES: To investigate ITIH4 plasma levels in sepsis patients compared with healthy controls and to examine the association between ITIH4 and acute-phase response markers, blood coagulation, and organ dysfunction in sepsis.METHODS: We performed a post hoc study to a prospective cohort study. Patients with septic shock (n = 39) were enrolled upon intensive care unit admission. ITIH4 was analyzed using an in-house immunoassay. Standard coagulation parameters, thrombin generation, fibrin formation and lysis, C-reactive protein, organ dysfunction markers, Sequential Organ Failure Assessment score, and disseminated intravascular coagulation (DIC) score were registered. ITIH4 levels were also investigated in a murine
Escherichia coli sepsis model.
RESULTS: ITIH4 did not display acute-phase behavior as mean ITIH4 levels were not increased in patients with septic shock or in
E. coli-infected mice. However, ITIH4 exhibited large interindividual variation in patients with septic shock compared with healthy controls. Low ITIH4 was associated with sepsis-related coagulopathy, including a high DIC score (mean ITIH4: DIC, 203 μg/mL vs non-DIC, 267 μg/mL,
P = .01), low antithrombin (
r = 0.70,
P < .0001) and decreased thrombin generation (mean ITIH4: first peak thrombin tertile, 210 μg/mL vs third peak thrombin tertile, 303 μg/mL,
P = .01). ITIH4 showed moderate correlation with arterial blood lactate (ρ = -0.50,
P < .001) but only weak correlations with C-reactive protein, alanine transaminase, bilirubin, and Sequential Organ Failure Assessment score (all, ρ < 0.26,
P > .05).
CONCLUSION: ITIH4 is associated with sepsis-related coagulopathy but is not an acute-phase reactant during septic shock.
KW - Acute-phase reaction
KW - ITIH4 protein, human
KW - disseminated intravascular coagulation
KW - multiple organ failure
KW - prognosis
KW - sepsis
U2 - 10.1016/j.rpth.2023.100078
DO - 10.1016/j.rpth.2023.100078
M3 - Journal article
C2 - 36876284
SN - 2475-0379
VL - 7
JO - Research and Practice in Thrombosis and Haemostasis
JF - Research and Practice in Thrombosis and Haemostasis
IS - 2
M1 - 100078
ER -