›› 2020, Vol. 40 ›› Issue (12): 1084-1087.

• Basic Research • Previous Articles     Next Articles

Tissue measurement analysis of gingival hyperplasia in FAM20A conditioned knockout mice

  

  • Received:2019-11-01 Revised:2019-12-10 Online:2020-12-28 Published:2020-12-22

Abstract: [Abstract] Objective To analyze the morphometric changes on gingival tissue when FAM20A is conditional knock out (cKO) in mice. Methods Brood k14-Cre;Fam20Aflox/flox cKO mice and normal control mice each had 20, at the ages of 4, 6, 8, 12 weeks after birth, be put to death five in each group. Serial paraffin section was cut in a bucco-lingual direction throughout the mandibular first molars, and make haematoxylin and eosin staining. The area of buccal total gingival, gingival epithelial and connective tissue, were measured under optical microscope with the image analysis system. Data were analyzed by two-way analysis of variance of factorial design, and determined the significance level by fisher least significant difference. Results The area of total buccal gingival, gingival epithelium and gingival connective tissue of the cKO mice were all increased significantly than the control group one’s (P < 0.05). Conclusion Loss of epithelial FAM20A in mice causes the area of buccal gingival overgrowth, including gingival epithelial and connective tissue.

Key words: Fam20A, condition knockout, morphometry, gingival hyperplasia, mice 

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