AChE	Acetylcholinesterase
AD	Alzheimer’s disease
Al	Aluminium
ALS	Amyotrophic lateral sclerosis
ANN	Artificial neuronal network
ASD	Autism spectrum disorder
ATSDR	Agency for Toxic Substances and Disease Registry
AUD	Alcohol use disorder
Bax	Bcl-2-associated X protein
BBB	Blood-brain barrier
Bcl-2	B-cell lymphoma 2
BMP-2	Bone morphogenic protein 2
Bw	Body weight
CAE	Ethanolic extract of Centella asiatica
Cal/OSHA	California’s Division of Occupational Safety and Health
CAT	Catalase
CCC	Criteria chronic concentration;
CMC	Criteria maximum concentration
CSF	Cerebro-spinal fluid
CSN	Central nervous system
Cu	Copper
CuZnSOD	Copper-zinc SOD
cyt c	cytochrome c
DA	Dopamine
Daergic	dopaminergic
DE	Dialysis encephalopathy
DFO	Deferoxamine
EDTA	Ethylenediaminetetraacetic acid
EFSA	European Food Safety Authority
EPA	Environmental Protection Agency
Fe	Iron
GPx	glutathione peroxidase
Hg	Mercury
LOAEL	Lowest-observed-adverse-effect level
MDA	Malondialdehyde
Mn	Manganese
MnSOD	Manganese SOD
MS	Multiple sclerosis
NFTs	Neurofibrillary tangles
NIOSH	The National Institute for Occupational Safety and Health
NOAEL	No-observed-adverse-effect level
NOS	Not otherwise specified
OSHA	Occupational Safety and Health Administration
p53	Tumor protein 53
Pb	Lead
PD	Parkinson’s disease
PEL	Permissible exposure limit
PTWI	provisional tolerable weekly intake
REL	recommended exposure limit
SCCS	Scientific Committee on Consumer Safety
SCHEER	Scientific Committee on Health, Environmental and Emerging Risks
Si	Silicon
SNc	Substantia nigra pars compact
SOD	Superoxide dismutase
TBARS	Thiobarbituric acid reactive substances
Tf	Transferrin
TfR	Transferrin receptor
TGF-ꞵ1	Transforming grow factor beta 1
TH	Tyrosine hydroxylase
TNFα	Tumor necrosis factor alpha
TWA	Time weighted average
TWI	Tolerable weekly intake
VTA	Ventral tegmental area
WHO	World Health Organization
Zn	Zinc