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Table 4 Potential of metabolic markers for the prediction or diagnosis of ICP

From: Application of metabolomics in intrahepatic cholestasis of pregnancy: a systematic review

References

Biospecimen

Potential Biomarker(s) or Biomarker Panel

AUC

Sensitivity

Specificity

Ruirui Dong (2021) [13]

Serum

l-Palmitoylcarnitine

0.896(the third trimester)

0.657(the first trimester)

0.727(the second trimester)

Glycocholic acid

0.985(the third trimester)

0.686(the first trimester)

0.670(the second trimester)

l-Palmitoylcarnitine + Glycocholic acid + ACOX1a

0.993(the third trimester)

0.891(the first trimester)

0.932(the second trimester)

Yuchao Li (2018) [15]

Urine

Di-GBA-S-3

0.975

0.966

0.909

Glycocholic acid-3S

0.997

1.000

0.955

Di-TBA-S-3

0.929

0.862

1.000

Di-TBA-S-2

0.983

0.966

1.000

Taurocholic acid-3S

0.995

1.000

0.955

Cholic acid-3S

0.873

0.793

0.955

Taurolithocholic acid-3S

0.828

0.690

0.909

Li Ma (2017) [16]

Urine

32 differential metabolites

0.642–0.918

MG (22:5) + LysoPE (22:5) + L-Homocysteine sulfonic acid + Glycocholic acid + Chenodeoxycholic acid-3S

0.988

0.900

0.933

Yue Cui (2018) [9]

Serum

Gtri-8

0.931

0.929

0.873

Taurochenodeoxycholic acid

0.946

0.952

0.855

Ttri-5

0.940

0.833

0.909

Glycocholic acid

0.957

0.929

0.891

Glycochenodeoxycholic acid

0.917

0.881

0.891

Gtri-3

0.938

0.905

0.891

Tauro-ω-muricholic acid

0.901

0.762

0.964

Taurocholic acid

0.946

0.905

0.891

Gtri-7

0.924

0.810

0.946

α-Muricholic acid

0.876

0.810

0.891

Gtri-6

0.950

0.905

0.873

Taurocholic acid + α-Muricholic acid + Gtri-8

0.996

0.976

0.964

Qihong Zheng (2021) [18]

Plasma

Norcholic acid

0.900

0.781

0.929

Glycocholic acid

0.994

0.969

1.000

Glycochenodeoxycholic acid

0.977

0.938

0.929

Glycohyocholic acid

0.998

1.000

0.964

Glycoursodeoxycholic acid

0.894

0.813

0.857

Hyocholic acid

0.819

0.594

1.000

Taurocholic acid

1.000

1.000

1.000

Taurochenodeoxycholic acid

1.000

1.000

1.000

Taurohyocholic acid

0.992

0.938

1.000

Above 9 metabolites

1.000

1.000

1.000

  1. The prefix “G-” or “T-” mean the bile acids exist in glycine- or taurine-conjugated form, respectively. The prefix “di-”, or “tri-” mean the bile acids may have two, or three -OHs, respectively. The prefix “S-” means the BAs are sulfated
  2. GBA Glycine bile acid; TBA Taurine bile acid
  3. aACOX1, Acyl-CoA oxidase 1 (different protein)