TABLE 6.

Top 30 keywords related to GM in AS.

Rank	Keyword	Count	Centrality	Rank	Keyword	Count	Centrality
1	Gut microbiota	235	0.35	16	Cholesterol	25	0.06
2	Atherosclerosis	189	0.37	17	Bile acid	25	0.03
3	TMAO	141	0.28	18	High fat diet	23	0.19
4	Metabolite	118	0.09	19	Oxidative stress	21	0.12
5	Obesity	103	0.29	20	Mortality	21	0.02
6	Phosphatidylcholine	101	0.06	21	Acid	20	0.03
7	Inflammation	95	0.01	22	Akkermansia muciniphila	19	0.02
8	Cardiovascular disease	82	0.16	23	Dysfunction	17	0.09
9	L-Carnitine	74	0.12	24	Choline	17	0.07
10	Chain fatty acid	69	0.10	25	Heart failure	15	0.10
11	Diet	52	0.09	26	Chronic kidney disease	14	0.03
12	Insulin resistance	42	0.14	27	Prognostic value	14	0.10
13	Coronary artery disease	40	0.15	28	Farnesoid X receptor	14	0.03
14	Blood pressure	37	0.10	29	Metabolic syndrome	13	0.00
15	Health	34	0.25	30	Endotoxemia induced inflammation	12	0.08