Matrix metalloproteinase protein expression profiles cannot distinguish between normal and early osteoarthritic synovial fluid

Table 1 Summary of normal, early OA, OA, and RA individuals

Patient Group	Age	Sex	Clinical Diagnosis	Prescribed Medication
Early Osteoarthritis (n=12)	58	M	Left knee	N/A
	43	M	right knee	N/A
	43	M	right knee	N/A
	49	F	right knee	N/A
	49	M	right knee	N/A
	66	M	right knee	N/A
	54	M	Left knee	N/A
	59	M	Left knee	N/A
	50	M	right knee	N/A
	46	M	right knee	N/A
	46	M	right knee	N/A
	31	M	right knee	N/A
	52	M	right knee	N/A
Osteoarthritis (n=17)	51	M	OA Left knee	N/A
	57	M	OA Left knee	N/A
	62	M	OA Left knee	N/A
	68	M	OA Both Knees & Spine	N/A
	75	M	OA Both Knees & Spine	N/A
	52	F	OA Right knee	N/A
	55	F	OA Right knee	N/A
	64	F	OA Left knee	N/A
	73	F	OA Left knee	N/A
	74	F	OA Both Knees	N/A
	65	M	OA Both Knees	N/A
	68	M	Knee & Both Hands	N/A
	62	F	Left Knees	N/A
	58	F	Both Knees & Spine	N/A
	49	F	Right Knee	N/A
	43	F	Both Knees	N/A
	45	M	Right Knee	N/A
Rheumatoid Arthritis (n=15)	40	M	RA	Infiximab
	51	M	RA	Leftlunomide
	55	M	RA	N/A
	40	F	RA	Methotrexate, Plaquenil, Abatacept
	48	M	RA	N/A
	49	F	RA	Methotrexate
	54	F	RA	Abatacept
	61	F	RA	N/A
	75	F	RA	Hydrochloroquine, Naproxen
	75	M	RA	Prednisone
	52	M	RA	N/A
	54	M	RA	Methotrexate
	48	M	RA	Abatacept
	63	M	RA	Abatacept
	55	M	RA	Methotrexate

Normal (n=25) 58±11 14M, 11F Normal Joint – No prescribed medications.
Synovial fluid was aspirated from the knees of normal individuals and patients with OA or RA. The age, sex, afflicted joint(s) and prescribed medication are presented above.

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