[The integrin beta1 mRNA changes after orthodontic movement of teeth in periodontitis rats].
OBJECTIVE
To study the integrin beta1 mRNA changes after orthodontic tooth movement in normal teeth and periodontitis teeth of rats.


METHODS
The OD of positively stained osteoclasts for integrin beta1 mRNA using in situ hybridzation was detected after orthodontic tooth movement in normal teeth and periodontitis teeth groups.


RESULTS
Integrin beta1 mRNA expression were detected on all osteoclasts in tooth movement samples of normal and periodontitis teeth. There were stronger positive signals after given orthodontic force in both of the two groups. But no differences were found after 0.5, 1, 2, 3, 5, 7, 10 days since orthodontic tooth movement. The integrin beta1 mRNA signals in normal tooth movement group were not different from that in periodontitis group.


CONCLUSIONS
The integrin beta1 of osteoclasts may play a role in the stability and remodeling of periodontal ligament in orthodontic tooth movement. There were no difference in the OD of integrin beta1 mRNA staining in orthodontic tooth movement between normal teeth group and periodontitis teeth group.
Zhang
Jing-Ju
JJ
Key Lab. of Oral Biomedical Engineering of Ministry of Education, Sichuan University, Chengdu 610041, China.
Chen
Yang-Xi
YX
Xiao
Li-Wei
LW
Duan
Pei-Jia
PJ
Zhao
Qing
Q
D000818:Animals; D019012:Integrin beta1 / Q000378:metabolism*; D010010:Osteoclasts; D010513:Periodontal Ligament; D010518:Periodontitis / Q000503:physiopathology*; D012333:RNA, Messenger / Q000378:metabolism; D051381:Rats; D014087:Tooth Movement Techniques
D019012:Integrin beta1; D012333:RNA, Messenger