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Table 2 Comparison of the results of 1H NMR spectrum between controls and patients with severe extracranial carotid artery stenosis (CAS)

From: Metabolomics study in severe extracranial carotid artery stenosis

 

Chemical shift (ppm)

 

Metabolite ID

Control (n = 65)

CAS (n = 65)

P value

Formate (8.46)

0.00235 ± 0.00046

0.00222 ± 0.00049

0.12583

Histidine (7.778)

0.00756 ± 0.00185

0.00764 ± 0.00167

0.80616

Phenyalanine (7.38)

0.00767 ± 0.00134

0.00781 ± 0.00132

0.56561

Phenyalanine (7.336)

0.01426 ± 0.00204

0.01485 ± 0.00243

0.13568

Tyrosine (7.20)

0.01159 ± 0.00179

0.01168 ± 0.00218

0.79284

Histidine (7.056)

0.00743 ± 0.00166

0.00726 ± 0.00145

0.53744

Tyrosine (6.906)

0.01066 ± 0.00164

0.01020 ± 0.00197

0.15681

Lactate (4.125)

0.09552 ± 0.02848

0.11547 ± 0.04951

0.00584

Creatinine (4.045)

0.02056 ± 0.00705

0.03025 ± 0.03457

0.03006

Glucose (3.248)

0.18253 ± 0.03440

0.16856 ± 0.04925

0.06328

Choline (3.205)

0.14156 ± 0.03223

0.12382 ± 0.03109

0.00177

Glutamine (2.47)

0.09644 ± 0.01241

0.09548 ± 0.01768

0.72204

Pyruvate (2.365)

0.03074 ± 0.00577

0.02922 ± 0.00602

0.14573

Lipid (2.23)

0.12925 ± 0.08064

0.12036 ± 0.06102

0.47984

N-acetylglycoprotein (2.054)

0.32462 ± 0.11493

0.31241 ± 0.08730

0.49632

Lipid (2.01)

0.34895 ± 0.11742

0.34877 ± 0.13591

0.99377

Acetate (1.915)

0.02723 ± 0.00443

0.02956 ± 0.01926

0.34458

Lipid (1.6)

0.25874 ± 0.16146

0.24437 ± 0.12969

0.57693

Lipid

0.24517 ± 0.14945

0.21435 ± 0.12022

0.19762

Lactate (1.332)

0.51526 ± 0.21607

0.54140 ± 0.20130

0.47661

Lipid (1.31)

3.17346 ± 1.64186

2.92170 ± 1.37389

0.34491

Valine (1.044)

0.03794 ± 0.01059

0.03926 ± 0.01097

0.48680

Isolecuine (1.005)

0.01209 ± 0.00389

0.01224 ± 0.00349

0.82135

Leucine (0.965)

0.02646 ± 0.00641

0.02479 ± 0.00567

0.11783

Lipid (0.90)

1.59928 ± 0.50784

1.42274 ± 0.44536

0.03709

  1. Data are presented as mean ± SD. VIP variable importance in the projection