Altered human alveolar bone gene expression in type 2 diabetes-A cross-sectional study

Area of Science:

• Genomics and Molecular Biology
• Oral and Maxillofacial Surgery
• Endocrinology

Background:

• Type 2 diabetes (T2D) is linked to increased implant failure, yet its effect on human alveolar bone gene expression is poorly understood.
• Existing research suggests a bone formation/resorption imbalance in diabetes, but comprehensive human alveolar bone gene expression data is lacking.
• This study addresses the knowledge gap concerning T2D's impact on human alveolar bone gene expression.

Purpose of the Study:

• To investigate alveolar bone gene expression differences between healthy individuals and those with type 2 diabetes.
• To utilize ribonucleic acid (RNA) sequencing and bioinformatics to comprehensively analyze gene expression patterns.
• To identify specific genes and pathways affected by type 2 diabetes in human alveolar bone.

Main Methods:

• Alveolar bone samples were collected from healthy and type 2 diabetic patients undergoing surgery.
• Ribonucleic acid (RNA) was extracted, purified, and subjected to RNA sequencing.
• Gene expression levels were quantified using FPKM, and differential expression analysis was performed.

Main Results:

• Sequencing revealed significant downregulation of key bone turnover genes (e.g., TGFB1, BMP2, RUNX2) in diabetic samples compared to healthy controls.
• Overall expression of bone regulation pathway genes was reduced in patients with diabetes.
• Bioinformatics analysis identified altered pathways related to bone homeostasis and inflammation in diabetes; periodontitis did not influence these patterns based on diabetes status.

Conclusions:

• Downregulated gene expression in bone turnover and inflammation pathways suggests compromised wound healing and bone homeostasis in type 2 diabetes.
• These findings highlight potential molecular mechanisms underlying increased complications in diabetic patients.
• Further research into therapeutic strategies targeting these pathways is warranted.