Nephrology and Urology
Summary
Nephrology and urology form complementary disciplines dedicated to the study and treatment of the kidneys, urinary tract and male reproductive organs. Nephrology addresses the spectrum of renal function and disease—from asymptomatic reductions in glomerular filtration rate and proteinuria through acute kidney injury and chronic kidney disease to end-stage renal failure requiring dialysis or transplantation. Urology encompasses obstructive and infectious conditions of the urinary tract, stone disease, functional disorders such as incontinence, benign prostatic enlargement, and malignancies of the bladder, prostate, kidney and testis. Both specialties increasingly collaborate to optimise patient care: nephrologists depend on urological intervention for obstruction relief and tumour resection, while urologists rely on nephrology expertise in dialysis, fluid management and preservation of renal function. Advances in imaging, molecular diagnostics and multidisciplinary pathways are reshaping practice and improving outcomes worldwide.
Research from Nature Portfolio
Recent studies have established noninvasive measures of fluid status as powerful predictors of survival in dialysis populations. Whole-body bioimpedance spectroscopy can quantify overhydration and phase-angle abnormalities, with overhydration >15 % and reduced phase angle each doubling mortality risk, independently of comorbidity. In imaging, dynamic contrast-enhanced MRI using a kidney-specific verdazyl-based organic radical agent has achieved simultaneous anatomical and functional mapping of glomerular filtration, correlating with histological and haematological markers in experimental nephropathy. Pharmacokinetic advances have refined exogenous marker clearance: three-compartment models of iohexol distribution outperform traditional two-compartment approaches, reducing bias in GFR estimation and improving sensitivity for detecting renal impairment, especially in elderly cohorts.
Nephrology and Urology publication trend
The graph below shows the total number of articles in nephrology and urology across all publications each year (not limited to Nature Index journals).
Technical terms
Glomerular filtration rate (GFR): The volume of plasma filtered across glomerular capillaries per minute, expressed per 1.73 m² of body surface area.
Estimated GFR (eGFR): An approximation of GFR calculated from serum creatinine and/or cystatin C using validated equations.
Bioimpedance spectroscopy: A noninvasive method measuring body fluid compartments by analysing electrical impedance across multiple frequencies to quantify overhydration.
Dynamic contrast-enhanced MRI (DCE-MRI): An imaging technique in which contrast agent passage through renal vasculature and parenchyma is tracked over time to derive perfusion and filtration metrics.
Ultrafiltration: The process of removing fluid across a semipermeable membrane during dialysis, controlled by transmembrane pressure.
Albuminuria: The presence of albumin in the urine, indicating increased glomerular permeability and an early marker of renal injury.
Natriuretic peptides: Hormones released by cardiac myocytes in response to volume expansion and pressure overload, used as biomarkers of intravascular volume and cardiac stress.
References
- Urology Renal Interface.
- Bioimpedance-defined overhydration predicts survival in end stage kidney failure (ESKF): systematic review and subgroup meta-analysis. Scientific Reports (2018).
- Direct mapping of kidney function by DCE-MRI urography using a tetrazinanone organic radical contrast agent. Nature Communications (2023).
- Using a three-compartment model improves the estimation of iohexol clearance to assess glomerular filtration rate. Scientific Reports (2018).
- Artificial intelligence assists identification and pathologic classification of glomerular lesions in patients with diabetic nephropathy. Journal of Translational Medicine (2024).
- Association between weight-adjusted-waist index and chronic kidney disease: a cross-sectional study. BMC Nephrology (2023).
- Association between the lipid accumulation product and chronic kidney disease among adults in the United States. Scientific Reports (2024).
- Comparative analysis of four nutritional scores in predicting adverse outcomes in biopsy-confirmed diabetic kidney Disease. Frontiers in Nutrition (2024).
About these summaries
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