Elevated plasma myoglobin level is closely associated with type 2 diabetic kidney disease

Area of Science:

• Nephrology
• Endocrinology
• Biochemistry

Background:

• Diabetic kidney disease (DKD) is a major complication of type 2 diabetes mellitus (T2DM), leading to progressive kidney function decline.
• Early diagnosis and prognosis of DKD are crucial for timely intervention and management.
• Novel biomarkers are needed to improve the understanding and treatment of DKD.

Purpose of the Study:

• To investigate the association between plasma myoglobin levels and the presence and severity of DKD in T2DM patients.
• To determine if plasma myoglobin can serve as a predictive biomarker for DKD development.
• To explore the relationship between plasma myoglobin and renal function and inflammatory markers.

Main Methods:

• A cohort study involving 355 T2DM patients with DKD and 710 T2DM patients without DKD.
• Measurement of plasma myoglobin and other laboratory parameters including hemoglobin A1c and biochemical markers.
• Statistical analyses included correlation, regression (linear, logistic, spline), and receiver operating characteristic (ROC) analysis.

Main Results:

• Plasma myoglobin levels were significantly higher in T2DM patients with DKD compared to those without.
• Plasma myoglobin was identified as an independent risk factor for DKD development.
• ROC analysis showed an area under the curve of 0.831 for myoglobin in predicting DKD. A linear association was observed above 36.4 mg/mL.

Conclusions:

• Elevated plasma myoglobin is strongly associated with kidney injury in T2DM patients.
• Plasma myoglobin shows potential as a valuable biomarker for early detection and risk assessment of DKD.
• Further research may elucidate the precise role of myoglobin in DKD pathogenesis.