Diabetic Kidney Disease Mechanisms and Management
Summary
Diabetic kidney disease (DKD) arises from a complex interplay of metabolic and haemodynamic derangements induced by chronic hyperglycaemia. Early changes include glomerular hyperfiltration driven by afferent arteriolar dilation and efferent arteriolar constriction, mediated in part by activation of the renin–angiotensin–aldosterone system (RAAS). Persistent high glucose levels provoke oxidative stress, advanced glycation end-product formation and inflammatory signalling, which in turn damage podocytes, induce mesangial expansion and compromise the glomerular filtration barrier. Tubulointerstitial fibrosis follows, driven by cytokine release and epithelial-to-mesenchymal transition. Phenotypic heterogeneity has become apparent: classical albuminuric DKD coexists with non-albuminuric forms characterised by impaired estimated glomerular filtration rate (eGFR) in the absence of significant proteinuria, reflecting predominant tubular injury. Management strategies centre on strict glycaemic control and blood pressure optimisation, with RAAS blockade as first-line therapy. In recent years, sodium–glucose cotransporter 2 (SGLT2) inhibitors and glucagon-like peptide 1 receptor agonists have demonstrated renoprotective and cardioprotective benefits beyond glycaemic lowering. Non-steroidal mineralocorticoid receptor antagonists further attenuate inflammation and fibrosis. Early detection through risk stratification and emerging biomarkers aims to personalise therapy and delay progression to end-stage kidney disease, a leading cause of morbidity and healthcare burden worldwide.
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Diabetic Kidney Disease Mechanisms and Management publication trend
The graph below shows the total number of articles in diabetic kidney disease mechanisms and management across all publications each year (not limited to Nature Index journals).
Technical terms
eGFR: estimated glomerular filtration rate, a calculation of kidney filtration capacity based on serum creatinine, age, sex and race.
Albuminuria: the abnormal presence of albumin in urine, indicating glomerular filtration barrier damage.
Non-albuminuric DKD: a form of diabetic kidney disease marked by reduced eGFR without significant urinary albumin excretion, reflecting tubular and interstitial injury.
SGLT2 inhibitor: a class of glucose-lowering agents that inhibit renal sodium–glucose cotransporter 2, promoting glycosuria and exerting renoprotective effects.
Mineralocorticoid receptor antagonist: a therapeutic agent that blocks aldosterone receptors to reduce inflammation, proteinuria and fibrotic pathways in the kidney.
References
- Cardiovascular risk and renal injury profile in subjects with type 2 diabetes and non-albuminuric diabetic kidney disease. Cardiovascular Diabetology (2023).
- Association between Albumin Alterations and Renal Function in Patients with Type 2 Diabetes Mellitus. International Journal of Molecular Sciences (2024).
- Update on Diabetic Kidney Disease (DKD): Focus on Non-Albuminuric DKD and Cardiovascular Risk. Biomolecules (2023).
- New strategies to improve clinical outcomes for diabetic kidney disease. BMC Medicine (2022).
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