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Table 6 Biomarkers related to vaosdilation identified in the literature search (with some selected references)

From: Sepsis biomarkers: a review

Sepsis marker

Evaluated in experimental studies

Evaluated in clinical studies

Evaluated as a prognostic factor

Comment

Adrenomedullin and pro-adrenomedullin [145, 146]

 

B

√*

Predicted development of septic shock

Anandamide [147]

√

A

 

Increased in sepsis compared with healthy controls

Angiotensin converting enzyme (ACE) (activity and serum) [148, 149]

√

B

 

Increased in sepsis compared with healthy controls

2-arachidonoylglycerol [150]

 

A

 

Increased in sepsis compared with healthy controls

Copeptin [151]

 

C(m)

√*

Distinguished between survivors and non-survivors at 28 days, correlated with APACHE II score

C-type natriuretic peptide (CNP) [152]

 

A

 

Increased in patients with septic shock compared with healthy controls

Cycling nucleotides [153, 154]

√

A(m)

√

Distinguished between survivors and non-survivors at 28 days

Elastin [155]

 

B

 

Decreased in sepsis compared with healthy controls

cGRP [156, 157]

√

C(s)

√

Distinguished between survivors and non-survivors at 28 days, correlated with APACHE II score

47 kD HK [158]

 

B(m)

 

Correlated with severity of sepsis

Neuropeptide Y [159, 160]

√

A

 

Increased in sepsis compared with healthy controls

Nitric oxide (NO), nitrate, nitrite [161, 162]

√

B

√

Predicted development of septic shock

Substance P [156, 163]

√

C(s)

√

Distinguished between survivors and non-survivors at 28 days (predictive only in the late phase of sepsis, 2 days before death)

Tetrahydrobiopterin [164, 165]

 

A

 

Increased in sepsis compared with non-septic critically ill patients

Vasoactive intestinal peptide (VIP) [166, 167]

√

A

 

Increased in tissue samples from patients with peritonitis compared with no peritonitis

  1. *sensitivity and specificity of less than 90%; A, Clinical study with less than 20 patients; B, Clinical study with 20 to 50 patients; C, Clinical study with more than 50 patients; (s), surgical patients only; (m), medical patients only.
  2. APACHE: acute physiology and chornic health evaluation; cGRP: calcitonin gene-related peptide; HK: high-molecular weight kininogen.