Ontology highlight
ABSTRACT: Context
The performance of peripheral blood transcriptional markers in evaluating risk of type 2 diabetes (T2D) with normal body mass index (BMI) is unknown.Objective
We developed a whole blood-based transcriptional risk score (wb-TRS) for nonobese T2D and assessed its contributions on disease risk and dynamic changes in glucose metabolism.Methods
Using a community-based cohort with blood transcriptome data, we developed the wb-TRS in 1105 participants aged ≥40 years who maintained a normal BMI for up to 10 years, and we validated the wb-TRS in an external dataset. Potential biological significance was explored.Results
The wb-TRS included 144 gene transcripts. Compared to the lowest tertile, wb-TRS in tertile 3 was associated with 8.91-fold (95% CI, 3.53-22.5) higher risk and each 1-unit increment was associated with 2.63-fold (95% CI, 1.87-3.68) higher risk of nonobese T2D. Furthermore, baseline wb-TRS significantly associated with dynamic changes in average, daytime, nighttime, and 24-hour glucose, HbA1c values, and area under the curve of glucose measured by continuous glucose monitoring over 6 months of intervention. The wb-TRS improved the prediction performance for nonobese T2D, combined with fasting glucose, triglycerides, and demographic and anthropometric parameters. Multi-contrast gene set enrichment (Mitch) analysis implicated oxidative phosphorylation, mTORC1 signaling, and cholesterol metabolism involved in nonobese T2D pathogenesis.Conclusion
A whole blood-based nonobese T2D-associated transcriptional risk score was validated to predict dynamic changes in glucose metabolism. These findings suggested several biological pathways involved in the pathogenesis of nonobese T2D.
SUBMITTER: Hou Y
PROVIDER: S-EPMC10735316 | biostudies-literature | 2023 Dec
REPOSITORIES: biostudies-literature
Hou Yanan Y Dai Huajie H Chen Na N Zhao Zhiyun Z Wang Qi Q Hou Tianzhichao T Zheng Jie J Wang Tiange T Li Mian M Lin Hong H Wang Shuangyuan S Zheng Ruizhi R Lu Jieli J Xu Yu Y Chen Yuhong Y Liu Ruixin R Ning Guang G Wang Weiqing W Bi Yufang Y Wang Jiqiu J Xu Min M
The Journal of clinical endocrinology and metabolism 20231201 1
<h4>Context</h4>The performance of peripheral blood transcriptional markers in evaluating risk of type 2 diabetes (T2D) with normal body mass index (BMI) is unknown.<h4>Objective</h4>We developed a whole blood-based transcriptional risk score (wb-TRS) for nonobese T2D and assessed its contributions on disease risk and dynamic changes in glucose metabolism.<h4>Methods</h4>Using a community-based cohort with blood transcriptome data, we developed the wb-TRS in 1105 participants aged ≥40 years who ...[more]