. 2013 Dec 13;11:308. doi: 10.1186/1479-5876-11-308

Table 2.

Serum level of RANKL and OPG ( x ¯± s $\bar{x} \pm s$ )

Serum index	Group	0 W	2 W	4 W	10 W
RANKL (pg/mL)	Con (15)	187.2 ± 27.3	184.1 ± 29.6	189.6 ± 25.5	183.6 ± 23.7
	CRF (15)	178. 1 ± 29.2	181.3 ± 32.7	206.3 ± 38.4	305.4 ± 40.2^a
	2%La (14)	183.9 ± 25.9	179.8 ± 28.1	201.7 ± 31.2	278.3 ± 36.9^a
OPG (pg/mL)	Con (15)	1956.2 ± 117.3	1894.3 ± 106.4	1931.5 ± 104.9	1912. 3 ± 96.7
	CRF (15)	1922.1 ± 98.5	1976.3 ± 95.2	2335.4 ± 114.9^a	2722.4 ± 153.5^a
	2%La (14)	1943.4 ± 105.9	1962.6 ± 100.5	2248.7 ± 134.6^a	2584.1 ± 147.8^a,b
RANKL/OPG	Con (15)	0.09	0.10	0.10	0.09
	CRF (15)	0.09	0.09	0.09	0.11
	2%La (14)	0.09	0.09	0.09	0.10

^aP < 0.01 vs Control Group at the same point.

^bP < 0.05 vs CRF Group at the same point.