Radioprotective effects of pyrroloquinoline quinone on parotid glands in C57BL/6J mice Retraction in /10.3892/etm.2024.12644

Huang,Yuanqing; Chen,Ning; Miao,Dengshun

doi:10.3892/etm.2016.3843

Radioprotective effects of pyrroloquinoline quinone on parotid glands in C57BL/6J mice

Retraction in: /10.3892/etm.2024.12644

Authors:
- Yuanqing Huang
- Ning Chen
- Dengshun Miao
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Affiliations: Department of Stomatology, Hunan University of Medicine, Huaihua, Hunan 418000, P.R. China, Institute of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China, State Key Laboratory of Reproductive Medicine, The Research Center for Bone and Stem Cells, Department of Anatomy, Histology and Embryology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
Published online on: October 26, 2016 https://doi.org/10.3892/etm.2016.3843
Pages: 3685-3693
Copyright: © Huang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

The aim of the present study was to investigate whether pyrroloquinoline quinine (PQQ) serve a radioprotective role in parotid gland damage induced by total body irradiation (TBI) in C57BL/6J mice. A total of 15 female 8‑week‑old C57BL/6J mice were randomly assigned into three treatment groups: i) Untreated control (no irradiation); ii) 4 gray (Gy) X-ray irradiation; iii) 4 Gy X‑ray irradiation with additional dietary PQQ (4 mg PQQ/kg in normal diet). Each group included five mice. After 4 weeks, all animals were collected for evaluating the phenotype, body weight, pathological and biochemical parameters. The results indicated that PQQ had biological effects on total body phenotype. PQQ could partially rescue TBI‑induced damage to parotid glands. In addition, PQQ served radioprotective effects on parotid glands via multiple mechanisms, such as promoting proliferation, inhibiting apoptosis and senescence, upregulating antioxidant ability, scavenging reactive oxygen species and reducing DNA damage. The results of the present study demonstrate that PQQ serves a radioprotective role in parotid gland damage induced by TBI, possibly via inhibiting oxidative stress and participating in DNA damage repair. The study provides experimental and theoretical knowledge for the development of radioprotective clinical drugs.

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