Volume 44, Issue 5 pp. 463-471
Animal Experiment

Mitochondrial dysfunction is involved in the aggravation of periodontitis by diabetes

Xiaoyu Sun

Xiaoyu Sun

Department of Periodontology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China

Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China

Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands

Contribute equally to this paper.Search for more papers by this author
Yixin Mao

Yixin Mao

Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China

Department of Prosthodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China

Contribute equally to this paper.Search for more papers by this author
Panpan Dai

Panpan Dai

Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China

Department of Prosthodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China

Contribute equally to this paper.Search for more papers by this author
Xumin Li

Xumin Li

Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China

Department of Prosthodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China

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Weiyan Gu

Weiyan Gu

Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China

Department of Prosthodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China

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Huining Wang

Huining Wang

Department of Periodontology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China

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Gang Wu

Corresponding Author

Gang Wu

Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands

Address:

Gang Wu

Department of Oral Implantology and Prosthetic Dentistry

Academic Centre for Dentistry Amsterdam (ACTA)

VU University Amsterdam and University of Amsterdam

MOVE Research Institute

Amsterdam 1081 LA

the Netherlands

E-mail: [email protected]

Jianfeng Ma

Department of Prosthodontics

School and Hospital of Stomatology

Wenzhou Medical University

No. 373, Xueyuan West Road

Lucheng District

Wenzhou, China

E-mail: [email protected]

Shengbin Huang

Institute of Stomatology

School and Hospital of Stomatology

Wenzhou Medical University

No. 373, Xueyuan West Road

Lucheng District

Wenzhou, China

E-mail: [email protected]

Search for more papers by this author
Jianfeng Ma

Corresponding Author

Jianfeng Ma

Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China

Department of Prosthodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China

Address:

Gang Wu

Department of Oral Implantology and Prosthetic Dentistry

Academic Centre for Dentistry Amsterdam (ACTA)

VU University Amsterdam and University of Amsterdam

MOVE Research Institute

Amsterdam 1081 LA

the Netherlands

E-mail: [email protected]

Jianfeng Ma

Department of Prosthodontics

School and Hospital of Stomatology

Wenzhou Medical University

No. 373, Xueyuan West Road

Lucheng District

Wenzhou, China

E-mail: [email protected]

Shengbin Huang

Institute of Stomatology

School and Hospital of Stomatology

Wenzhou Medical University

No. 373, Xueyuan West Road

Lucheng District

Wenzhou, China

E-mail: [email protected]

Search for more papers by this author
Shengbin Huang

Corresponding Author

Shengbin Huang

Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China

Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands

Department of Prosthodontics, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China

Address:

Gang Wu

Department of Oral Implantology and Prosthetic Dentistry

Academic Centre for Dentistry Amsterdam (ACTA)

VU University Amsterdam and University of Amsterdam

MOVE Research Institute

Amsterdam 1081 LA

the Netherlands

E-mail: [email protected]

Jianfeng Ma

Department of Prosthodontics

School and Hospital of Stomatology

Wenzhou Medical University

No. 373, Xueyuan West Road

Lucheng District

Wenzhou, China

E-mail: [email protected]

Shengbin Huang

Institute of Stomatology

School and Hospital of Stomatology

Wenzhou Medical University

No. 373, Xueyuan West Road

Lucheng District

Wenzhou, China

E-mail: [email protected]

Search for more papers by this author
First published: 16 February 2017
Citations: 71

Conflict of interest and source of funding statement

The authors declare that they have no conflict of interests.

This research was supported in part by the Natural Science Foundation of China (No. 81500817), Zhejiang Provincial Natural Science Foundation of China (No. LY15H140008, LY16H140005), Health Science and Technology Project of Zhejiang Province (2016KYB184), Wenzhou Public Technical Research Medical Program (NO. Y20140708), and Wenzhou Technology Bureau Project (Y20160402).

Abstract

Aim

To elucidate whether mitochondrial dysfunction contributes to aggravated periodontitis in diabetes.

Materials and Methods

Sixty-four wistar rats were randomly assigned into four groups: control, periodontitis, diabetes, and diabetic periodontitis. Two weeks after induction of diabetes, periodontitis was induced by silk ligation for 2 weeks and thereafter evaluated by assessing alveolar bone loss and apoptosis of periodontium cells. Mitochondrial oxidative stress was detected by MitoSOX staining. Mitochondrial function was determined by measuring ATP production, and by assessing mitochondrial DNA copy number, activities of electron transport chain complexes, and biogenesis with real-time PCR.

Results

Significantly severer bone loss, enhanced periodontium cell apoptosis, and mitochondrial oxidative stress were found in the rats with diabetic periodontitis than the others. Furthermore, diabetic rats with periodontitis presented severer mitochondrial dysfunction than lean rats with periodontitis, as reflected by compromised ATP production, decreased mitochondrial DNA copy number, reduced gene expression of electron transport chain complex I subunits, and impaired mitochondrial biogenesis (< 0.05). Multiple regression analysis further indicated a close correlation between these mitochondrial events and bone loss in diabetic periodontitis.

Conclusions

Mitochondrial dysfunction was positive correlated to aggravated periodontitis in diabetes and might represent a therapeutic target for diabetic periodontitis.

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