AGE	advanced glycation end-products
BAX	Bcl-2-associated X protein
BCL2	B-cell lymphoma 2
BDNF	brain-derived neurotrophic factor
CAN	Cardiac Autonomic Neuropathy
CASP3/9	caspase 3/9, apoptosis-related cysteine peptidase
CAT	catalase
CGRP	calcitonin gene-related peptide
cmRNA	circulating mRNA
COX2	cytochrome c oxidase subunit 2
DM	diabetes mellitus
DN	diabetic peripheral neuropathy
eNOS	endothelial nitric oxide synthase
ELISA	enzyme-linked immunosorbent assay
ERBB2/3	Erb-B2 receptor tyrosine kinase 3/3
FGFR3	fibroblast growth factor receptor 3
GBS	Guillain–Barré syndrome
GFAP	glial fibrillary acidic protein
GPX1	glutathione peroxidase 1
HIF-1α	hypoxia-inducible factor 1-alpha
hiPSC	human-induced pluripotent stem cell
HMOX1	heme oxygenase 1
IENFD	Intraepidermal Nerve Fiber Density
IKBα	Nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor, alpha
IL-1β	interleukin 1 beta
IL-6	interleukin 6
iNOS	inducible nitric oxide synthase
KROX2	(EGR2) early growth response 2
LC3	microtubule-associated protein 1 light chain 3
MAG	myelin-associated glycoprotein
MAPK	mitogen-activated protein kinase
MBP	myelin basic protein
MCP-1	monocyte chemoattractant protein 1
MEA	multi-electrode array
miRNA	microRNA
MPZ	myelin protein zero
mTORC1	mechanistic target of rapamycin complex 1
NADPH	nicotinamide adenine dinucleotide phosphate
NF-κB	nuclear factor-kappa B
NfL	Neurofilament Light Chain
NGF	nerve growth factor
NOX4	NADPH oxidase 4
Nrf2	nuclear factor erythroid 2–related factor 2
NSE	Neuron-Specific Enolase
P0	protein zero
PKC	protein kinase C
PRPH	peripherin
RAGE	advanced glycation end-products receptor
RELA	v-rel avian reticuloendotheliosis viral oncogene homolog A
ROS	reactive oxygen species
SC	Schwann cell
SOD1	superoxide dismutase 1
SOX10	SRY-box transcription factor 10
SP	substance P
T1DM	type 1 diabetes mellitus
T2DM	type 2 diabetes mellitus
TLR4	toll-like receptor 4
TNF-α	tumor necrosis factor alpha
VEGF	vascular endothelial growth factor