Table 5.

Top 20 keywords of macrophage polarization in AS research.

Rank	Keyword	Count	Centrality	Rank	Keyword	Count	Centrality
1	atherosclerosis	273	0.05	11	alternative activation	67	0.01
2	macrophage polarization	253	0.06	12	differentiation	61	0.04
3	inflammation	223	0.05	13	insulin resistance	59	0.08
4	activation	184	0.07	14	mechanism	55	0.1
5	cell	111	0.15	15	disease	53	0.03
6	monocyte	94	0.03	16	smooth muscle cell	52	0.03
7	gene expression	82	0.04	17	LDL	50	0.1
8	mice	78	0.12	18	foam cell	50	0.07
9	NF kappa B	77	0.01	19	phenotype	49	0.03
10	macrophage	68	0.07	20	receptor	47	0.06