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Protein Pyrrole Adducts in Diabetes Mellitus

Links with Axonal Polyneuropathy

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Biomarkers in Diabetes

Abstract

Diabetes mellitus is commonly associated with a symmetrical, distal sensory or sensorimotor axonal polyneuropathy that develops insidiously and advances in accord with the hyperglycemic state. Elevated blood glucose promotes anaerobic glycolysis which in turn produces excess advanced glycation end products, many of which have a pyrrole structure that can react with critical neuroproteins. Pyrroles also form between endogenous γ-diketones, notably 2,5-hexanedione, and the ε-amine group of lysine residues of proteins, including those required for axonal maintenance. The pyrrolated proteins undergo oxidation and cross-linkage, which interferes with axonal transport of materials from sites of neuronal synthesis to distal destinations. Thus, the distal ends of elongate sensory and motor axons are first affected, which triggers distal nerve fiber degeneration. Comparable pathological changes in long tracts of the spinal cord result in an overall picture of central-peripheral distal axonopathy. Whether, which, and what levels of pyrrolated serum/urinary proteins are useful biological markers of diabetic polyneuropathy is the principal subject of this chapter.

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Abbreviations

AA:

Acetoacetate

ACHD:

3-Acetyl-2,5-hexanedione

AFGP:

Alkyl formylglycosyl pyrrole

AGE:

Advanced glycation end product

CNS:

Central nervous system

COVID-19:

SARS-CoV-2-induced disease

CPDA:

Central-peripheral distal axonopathy

DEHD:

3,4-Diethyl-2,5-hexanedione

DiPHD:

3,4-Diisopropyl-2,5-hexanedione

DM:

Diabetes mellitus

DM-1:

DM type 1

DM-2:

DM type 2

DMAB:

p-Dimethylaminobenzaldehyde

DMHD:

3,4-Dimethyl-2,5-hexanedione

DPP-4:

Dipeptidyl peptidase 4

DSPN:

Distal sensory/sensorimotor peripheral neuropathy

GDM:

Gestational DM

HbA1c:

Hemoglobin A1c

3-HHD:

3-Hydroxy-2,5-hexanedione

4-HNE:

4-Hydroxy-2-nonenal

HO-1:

Heme oxygenase 1

ICAM-1:

Intercellular adhesion molecule 1

IL-1:

Interleukin 1

IL-6:

Interleukin 6

IL-1RA:

Interleukin 1 receptor antagonist

MALAT1:

Metastasis-associated lung adenocarcinoma transcript 1

MCP-1:

Monocyte chemoattractant protein 1

MG :

Methylglyoxal

miRNA:

Microribonucleic acid

NADPH:

Nicotinamide adenine dinucleotide phosphate

NFE2L2:

Nuclear factor, erythroid 2-like 2

NF-κB:

Nuclear factor-κB

NMR:

Nuclear magnetic resonance

PARP-α:

Poly[ADP-ribose]polymerase 1

PNS:

Peripheral nervous system

RAGE:

Receptor for AGE

SARS-CoV-2:

Severe acute respiratory syndrome coronavirus 2

SDS-PAGE:

Sodium dodecyl sulfate polyacrylamide gel electrophoresis

sICAM-1:

Soluble intercellular adhesion molecule 1

SIRT1:

Sirtuin 1

TGF-β:

Transforming growth factor beta

TNF-α:

Tumor necrosis factor alpha

TRPV1:

Transient receptor potential cation channel subfamily V member 1

VEGF:

Vascular endothelial growth factor

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Correspondence to Peter S. Spencer .

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Chen, X., Jiang, Z., Spencer, P.S. (2023). Protein Pyrrole Adducts in Diabetes Mellitus. In: Patel, V.B., Preedy, V.R. (eds) Biomarkers in Diabetes. Biomarkers in Disease: Methods, Discoveries and Applications. Springer, Cham. https://doi.org/10.1007/978-3-031-08014-2_52

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