Trabecular bone score as an indicator for skeletal deterioration in diabetes

Area of Science:

• Endocrinology
• Osteoporosis Research
• Medical Imaging Analysis

Background:

• Trabecular bone score (TBS) assesses bone microarchitecture using pixel variations in DXA images, independent of bone mineral density (BMD).
• Understanding skeletal health in diabetes is crucial due to increased fracture risk.

Purpose of the Study:

• To evaluate lumbar spine TBS as a marker for skeletal deterioration in individuals with diabetes.
• To explore the relationship between TBS, diabetes, and insulin resistance.

Main Methods:

• Cross-sectional analysis of 1229 men and 1529 postmenopausal women (age > 50) from the Ansung cohort.
• Measurement of biochemical parameters, lumbar spine TBS, and BMD using dual-energy X-ray absorptiometry.
• Statistical analysis to compare TBS and BMD between diabetic and non-diabetic participants, and correlation with glycemic markers.

Main Results:

• Men with diabetes had lower lumbar spine TBS but higher BMD compared to non-diabetic men.
• Women with diabetes showed lower TBS, particularly those younger than 65, even after adjustments.
• TBS was inversely correlated with markers of insulin resistance (HbA1c, fasting glucose, insulin, HOMA-IR) in both genders.

Conclusions:

• Lumbar spine TBS may serve as an indicator of skeletal deterioration in diabetic patients, particularly those with elevated BMD.
• The inverse association between TBS and insulin resistance highlights TBS's potential role in assessing bone health in diabetes.