Table 3. Changes of body and organ weights after hUCB-MSCs injection in PAH rats.

Week	Group	Body Wt (g)	RV/Body Wt	LV/Body Wt	Lung/Body Wt	Kidney/Body Wt	Liver/Body Wt
2	C	338.63 ± 13.88	0.62 ± 0.02	2.20 ± 0.05	4.18 ± 0.34	4.35 ± 0.16	4.21 ± 0.18
	M	278.50 ± 27.69	1.01 ± 0.10*	2.34 ± 0.11	7.10 ± 1.15*	4.33 ± 0.50	4.77 ± 0.29*
	U	308.56 ± 25.85	1.14 ± 0.21	2.43 ± 0.17	8.50 ± 1.37	4.52 ± 0.36	4.31 ± 0.41
3	C	293.75 ± 19.45	0.40 ± 0.18	1.99 ± 0.00	3.24 ± 0.14	4.01 ± 0.14	4.14 ± 0.31
	M	266.67 ± 54.35*	1.62 ± .0.24*	2.16 ± 0.08	10.05 ± 3.67*	4.15 ± 0.32	4.07 ± 0.31
	U	251.00 ± 37.94	1.72 ± 0.33	2.32 ± 0.23	10.93 ± 2.10	4.37 ± 0.40	4.22 ± 0.40
4	C	404.00 ± 36.77	0.61 ± 0.04	0.61 ± 0.04	3.68 ± 0.05	4.26 ± 0.30	3.77 ± 0.30
	M	248.89 ± 40.96*	2.67 ± 0.04*	2.67 ± 0.04	9.28 ± 3.29*	4.38 ± 0.38	3.90 ± 0.49
	U	279.29 ± 26.58	1.81 ± 0.15†	1.81 ± 0.15	8.92 ± 1.67	4.02 ± 0.21	3.69 ± 0.39

^*P<0.05 compared with the C group; ^†P<0.05 compared with the M group. C, control; M, monocrotaline; U, hUCB-MSCs; Wt, weight; RV, right ventricle; LV, left ventricle. Values are means±SD.