1992 Fiscal Year Final Research Report Summary
EFFECT OF GRANULOCYTE-MACROPHAGE COLONY-STIMULATING FACTOR(GM-CSF)ON RAT EXPERIMENTAL PERIODONTITIS
| Project/Area Number |
02807174
|
|---|
| Research Category |
Grant-in-Aid for General Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Conservative dentistry
|
|---|
| Research Institution | THE UNIVERSITY OF TOKUSHIMA |
|---|
Principal Investigator |
ISHIDA Hiroshi THE UNIVERSITY OF TOKUSHIMA,SCHOOL OF DENTISTRY,ASSOCIATE PROFESSOR, 歯学部, 助教授 (90127803)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
NISHIKAWA Seiji THE UNIVERSITY OF TOKUSHIMA,SCHOOL OF DENTISTRY,RESEARCH ASSOCIATE, 歯学部, 助手 (80208157)
|
|---|
| Project Period (FY) |
1990 – 1992
|
| Keywords | Periodontal Disease / Drug-induced gingival hyperplasia / granulocyte colony-stimulating factor / Experimental periodontitisc |
|---|
| Research Abstract |
Periodontal diseases are infectious diseases with a bacterial etiology and periodontitis is characterized by a dense infiltration of inflammatory cells: polymorphonuclear leakocytes(PMNs),monocytes,and lymphocytes.Among these cells, PMNs constitute a first line against all forms of injury and microbial challenge around teeth as well as the body.Recently,Hammond et al.reported(N Eng.J.Med.,320, 1306,1989)that recombinat human granulocyte colony-stimulating factor(G-CSF) increased neutrophile turnover almost four-fold without affecting the migrative activity in patients with cyclic neuropenia resulting in reducing the frequency of oropharyngeal inflammation,fever,infections,and recurrent gingivitis.In this study,we examined the effect of recombinat mouse GM-CSF on the oncet and development of experimental gingival hyperplasia or periodontitis in rats or mice. Addition of GM-CSF for 2 weeks to rats or mice resulted in an increase in the number of neutrophiles in mise,but did not in rats.However,the addition of GM-CSF did not affect either the experimental gingilval hyperplasia induced by nifedipine or experimental periodontitis in either animals.
|
