Ubiquitination in diabetes and its complications: A perspective from bibliometrics

Table 5 The 20 keywords with the highest frequency

Rank	Keyword	Centrality	Year	Count
1	Expression	0.21	2003	161
2	Activation	0.13	2001	114
3	Oxidative stress	0.08	2008	89
4	Phosphorylation	0.1	2003	87
5	Ubiquitination	0.11	2002	77
6	Degradation	0.14	2006	75
7	Insulin resistance	0.11	2007	74
8	Protein	0.07	2008	74
9	Gene expression	0.16	2001	61
10	Mechanisms	0.03	2002	54
11	Diabetic nephropathy	0.04	2013	53
12	Apoptosis	0.06	2003	52
13	Cells	0.05	2003	47
14	Metabolism	0.02	2012	42
15	Pathway	0.04	2007	42
16	Glucose	0.06	2010	38
17	Nf kappa b	0.06	2010	37
18	Mice	0.03	2002	35
19	Diabetes mellitus	0.08	2003	32
20	Inhibition	0.02	2003	31