Soft X‐ray examination of β‐
TCP + BMP
s + hASC
complex implanted into nude mice for 4 weeks. (a) After 4‐week in vivo transplantation, soft X‐ray radiography showed that β‐TCP + BMP‐2 + hASC and β‐TCP + BMP‐2/7 + hASC complexes formed bone‐like tissues with relatively higher density than control groups. (b) Relative grey scales were determined by Image J software. Mean density of β‐TCP + BMPs + hASC complexes was significantly higher than control groups (P < 0.01). However, there was no significant difference between these two groups (P > 0.05). (I) β‐TCP only (blank control); (II) β‐TCP + hASCs; (III) β‐TCP + BMP‐2 + hASCs; (IV) β‐TCP + BMP‐2/7 + hASCs. hASCs, human adipose‐derived stem cells; β‐TCP, β‐tricalcium phosphate; BMP, bone morphogenetic protein.