ACLT	cruciate ligament transection
ACR	American College of Rheumatology
ACs	articular condrocytes
ADAMTS	disintegrin and metalloprotease with thrombospondin motifs
BCP	β-caryophyllene
CI	combination index
COL2A1	collagen type II alpha 1
COX-2	cyclooxygenase-2
DAMPs	damage associated molecular patterns
ECM	extracellular matrix
EGCG	epigallocatechin gallate
GAG	glycosaminoglycans
HACs	human articular chondrocytes
HT	hydroxytyrosol
iNOS	inducible nitric oxide synthase
LFI	Lequesne Functional Index
5-LOX	5-lipoxygenase
LPFI	Lequesne’s Pain-Function Index
LPS	lipopolysaccharide
MDA	malondialdehyde
MIA	monoiodoacetate
MMPs	matrix metalloproteinases
MSCs	mesenchymal stem cells
MyD88	myeloid differentiation factor 88
NF-κΒ	nuclear factor kappa-Β
NLRs	NOD-like receptors
NO	nitric oxide
NSAIDs	nonsteroidal anti-inflammatory drugs
OA	osteoarthritis
OARSI	Osteoarthritis Research Society International
OPC	grape extract
OPCO	grape seed and olive extract
OS	oxidative stress
PCy	procyanidins
PGA	patient’s global assessment
PGAD	physician’s global assessment of disease activity
PGE2	prostaglandin E2
PHO	olive extract
PRRs	pattern recognition receptors
PTOA	post-traumatic OA animal models
PWT	paw withdrawal threshold
RCT	randomized controlled trial
ROS	reactive oxygen species
RosA	rosmarinic acid
SGAD	subject’s global assessment of disease activity
SGADc	subject’s global assessment of disease related discomfort
SIRT1/AMPK	sirtuin1/adenosine monophosphate-activated protein kinase
SMMSCs	synovial membrane-derived mesenchymal stem cells
SOD	superoxide dismoutase
TLRs	toll-like receptors
TRIF	toll/interferon response factor
VAS	Visual Analog Scale
WOMAC	Western Ontario and McMaster Universities Osteoarthritis Index