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Functional changes in the aging kidney

Ciro Esposito1, Antonio Dal Canton

  • 1Fondazione IRCCS Policlinico San Matteo, University of Pavia, Italy. espositociro56@live.it

Journal of Nephrology
|September 28, 2010
PubMed

Insights

Kidney function changes with age, but healthy aging shows fewer alterations than previously thought. Understanding these changes aids in preventing kidney disease in older adults.

Area of Science:

  • Nephrology
  • Gerontology
  • Physiology

Background:

  • Aging causes anatomical and functional kidney changes, increasing elderly risk for renal failure.
  • Previous studies on aging kidneys often included patients with comorbidities affecting renal function.
  • Recent studies on healthy aged subjects suggest aging-induced renal changes are less pronounced.

Purpose of the Study:

  • To review age-related changes in kidney function.
  • To focus on glomerular hemodynamics, renal sodium and potassium handling, and diluting/concentrating ability.

Main Methods:

  • Literature review focusing on recent studies of healthy aging subjects.
  • Analysis of anatomical and functional changes in the aging kidney.
  • Examination of glomerular hemodynamics and renal tubular handling of electrolytes and water.

Main Results:

  • Aging-induced renal changes are less pronounced in healthy individuals without comorbidities.
  • Glomerular hemodynamics may be altered with age.
  • Renal sodium and potassium handling, and diluting and concentrating abilities can be affected by aging.

Conclusions:

  • While aging impacts kidney function, significant decline is not inevitable in healthy older adults.
  • Understanding subtle aging-related renal changes is crucial for preventing kidney disease.
  • Further research on healthy aging kidneys can inform clinical practice and improve geriatric nephrology.

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