Table 2 Significant proteins (VIP > 1) in the orthogonal partial least square discriminant analysis (OPLS-DA) model of all three compartments (intracutaneous, subcutaneous and intravenous) that contributed most to the separation in protein expression before (baseline) and after glucose provocation (Fig. 4).

From: Investigation of proteins important for microcirculation using in vivo microdialysis after glucose provocation: a proteomic study

Protein ID

Gene name

Protein name

Compartment

VIP

Alteration after glucose provocation vs baseline

P02652

APOA2

Apolipoprotein A-II

Intracutaneous

1.54

Q9NZP8

C1RL

Complement C1r subcomponent-like protein

Intracutaneous

1.47

Q96PD5

PGLYRP2

N-acetylmuramoyl-L-alanine amidase

Intracutaneous

1.47

P43652

AFM

Afamin

Intracutaneous

1.46

P04217

A1BG

Alpha-1B-glycoprotein

Intracutaneous

1.44

P02750

LRG1

Leucine-rich alpha-2-glycoprotein

Intracutaneous

1.41

P02765

AHSG

Alpha-2-HS-glycoprotein

Intracutaneous

1.39

P02768

ALB

Albumin

Subcutaneous

1.38

Q96PD5

PGLYRP2

N-acetylmuramoyl-L-alanine amidase

Subcutaneous

1.37

P02768

ALB

Albumin

Intracutaneous

1.36

P00738;P00739

HP

Haptoglobin/haptoglobin-related protein

Intravenous

1.35

P01019

AGT

Angiotensinogen

Intracutaneous

1.34

P68871

HBB

Hemoglobin subunit beta

Intravenous

1.34

P04217

A1BG

Alpha-1B-glycoprotein

Intravenous

1.34

P04217

A1BG

Alpha-1B-glycoprotein

Subcutaneous

1.33

P02766

TTR

Transthyretin

Intracutaneous

1.33

P43251

BTD

Biotinidase

Intracutaneous

1.32

P02652

APOA2

Apolipoprotein A-II

Subcutaneous

1.30

P02765

AHSG

Alpha-2-HS-glycoprotein

Intravenous

1.30

P01019

AGT

Angiotensinogen

Subcutaneous

1.29

P01019

AGT

Angiotensinogen

Intravenous

1.29

P43652

AFM

Afamin

Intravenous

1.27

P00738;P00739

HP

Haptoglobin/haptoglobin-related protein

Intracutaneous

1.27

P02763

ORM1

Alpha-1-acid glycoprotein 1

Intracutaneous

1.27

P02750

LRG1

Leucine-rich alpha-2-glycoprotein

Subcutaneous

1.26

P00450

CP

Ceruloplasmin

Subcutaneous

1.25

P01011

AACT

Alpha-1-antichymotrypsin

Subcutaneous

1.23

P02765

AHSG

Alpha-2-HS-glycoprotein

Subcutaneous

1.22

P02750

LRG1

Leucine-rich alpha-2-glycoprotein

Intravenous

1.22

P02760

AMBP

Protein AMBP

Intracutaneous

1.22

P02749

APOH

Beta-2-glycoprotein 1

Intracutaneous

1.21

P01011

AACT

Alpha-1-antichymotrypsin

Intracutaneous

1.21

P68871

HBB

Hemoglobin subunit beta

Intracutaneous

1.20

P00738;P00739

HP

Haptoglobin/haptoglobin-related protein

Subcutaneous

1.19

P01008

SERPINC1

Antithrombin-III

Intravenous

1.19

P02763

ORM1

Alpha-1-acid glycoprotein 1

Subcutaneous

1.17

P01042

KNG1

Kininogen-1

Subcutaneous

1.15

P01042

KNG1

Kininogen-1

Intracutaneous

1.15

P19652

ORM2

Alpha-1-acid glycoprotein 2

Intracutaneous

1.15

P00450

CP

Ceruloplasmin

Intracutaneous

1.14

P69905

HBA1

Hemoglobin subunit alpha

Intravenous

1.14

P02753

RBP4

Retinol-binding protein 4

Intracutaneous

1.13

P02768

ALB

Albumin

Intravenous

1.13

P05155

SERPING1

Plasma protease C1 inhibitor

Intravenous

1.08

Q9NZP8

C1RL

Complement C1r subcomponent-like protein

Subcutaneous

1.06

P01011

AACT

Alpha-1-antichymotrypsin

Intravenous

1.05

Q96PD5

PGLYRP2

N-acetylmuramoyl-L-alanine amidase

Intravenous

1.04

P68871

HBB

Hemoglobin subunit beta

Subcutaneous

1.04

O75882

ATRN

Attractin

Intravenous

1.03

P25311

AZGP1

Zinc-alpha-2-glycoprotein

Intracutaneous

1.02

P01042

KNG1

Kininogen-1

Intravenous

1.02

P02753

RBP4

Retinol-binding protein 4

Intravenous

1.02

P43251

BTD

Biotinidase

Subcutaneous

1.01

  1. ↑ = Upregulated; ↓ = Downregulated after glucose provocation compared to before (baseline). Proteins were considered significant if VIP (variable influence of projection) value was > 1. Protein ID (accession number) and gene name are referred to according to the protein database Uniprot (http://uniprot.org).