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Altered Human Alveolar Bone Gene Expression in Type 2 Diabetes

ABSTRACT: Altered Human Alveolar Bone Gene Expression in Type 2 Diabetes

PROVIDER: PRJNA758362 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR15652756_1.fastq.gz	Fastqsanger.gz
	SRR15652756_2.fastq.gz	Fastqsanger.gz
	SRR15652757_1.fastq.gz	Fastqsanger.gz
	SRR15652757_2.fastq.gz	Fastqsanger.gz
	SRR15652758_1.fastq.gz	Fastqsanger.gz

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Altered Human Alveolar Bone Gene Expression in Type 2 Diabetes

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Project description:In this study, an α2(VI) deficient mouse (Col6α2-KO) model was used to examine the role of Type VI collagen in oral tissues. To examine bone properties, µCT was employed, and bone volume and bone mineral density (BMD) was measured in oral tissues. To further investigate its molecular basis, proteome analysis was performed using protein extracted from alveolar bone. In addition, alveolar bone loss progression was evaluated with a periodontitis induced model. µCT analysis showed the Col6α2- KO mice had less volume of alveolar bone, dentin and dental pulp, while the width of periodontal ligament (PDL) was greater than WT. The BMD in alveolar bone and dentin were elevated in Col6α2-KO mice compared with WT. Our proteome analysis showed significant changes in proteins related to ECM organization and elevation of proteins associated with biomineralization in the Col6α2-KO mice. In induced periodontitis, Col6α2-KO mice had greater alveolar bone loss compared to WT. In conclusion, Type VI collagen has role in controlling biomineralization in alveolar bone and that changes in the ECM of alveolar bone could be associated with greater bone loss from periodontitis.

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Project description:Treatment of periodontitis in people with diabetes remains challenging. Diabetes-enhanced oxidative stress is a primary cause of aggravation of periodontitis. The present study aimed to investigate the therapeutic potential of thioredoxin-1 (TRX1), an essential endogenous antioxidant protein, in the management of periodontitis with diabetes, as well as its role in modulating osteogenic differentiation. Our findings indicated that the production of reactive oxygen species (ROS) was elevated, while the expression of TRX1 was significantly reduced in the periodontal tissues of periodontitis mice with diabetes. Furthermore, knockdown of TRX1 in periodontal ligament stem cells (PDLSCs) resulted in the inhibition of osteogenic differentiation through disrupting Wnt/β-catenin signal pathway. However, this inhibition was restored upon administration of recombinant human TRX1 (rhTRX1). Importantly, rhTRX1 treatment decreased ROS generation, activated Wnt/β-catenin signal pathway and considerably promoted the alveolar bone repair of periodontitis mice with diabetes. These findings highlighted the crucial protective role of TRX1 in periodontitis with diabetes and suggested that it may serve as a potential therapeutic target for refractory periodontitis associated with oxidative stress.

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Genetic activation of glycolysis in osteoblasts preserves bone mass in type I diabetes [bulkRNA-seq]

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