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[Age-related differences in IgA nephropathy].

A Takeda1, H Takimoto, F Niimura

  • 1Department of Pediatrics, Tokyo Medical and Dental University, Japan.

Nihon Jinzo Gakkai Shi
|November 26, 1999
PubMed
Summary

IgA nephropathy characteristics vary with age. Younger patients often have acute nephritis with good outcomes, while older patients show increased proteinuria, hypertension, and poorer prognoses, requiring tailored treatments.

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Area of Science:

  • Nephrology
  • Immunology
  • Pediatric Nephrology

Context:

  • IgA nephropathy (IgAN) exhibits diverse clinical presentations across age groups.
  • Understanding age-related variations is crucial for accurate diagnosis and management of IgAN.
  • This study analyzes IgAN characteristics in a cohort spanning all age decades.

Purpose:

  • To delineate age-specific differences in IgA nephropathy presentation, progression, and treatment response.
  • To identify key clinical and histological factors associated with age in IgAN patients.

Summary:

  • Investigated 117 patients across all age groups with IgA nephropathy.
  • Children under ten often presented with acute nephritis and favorable prognoses.
  • Older patients (>10 years) exhibited increased proteinuria, reduced creatinine clearance, hypertension, and elevated serum cholesterol, with poorer prognoses.

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  • Histological changes like glomerulosclerosis, interstitial fibrosis, and arteriosclerosis worsened with age.
  • Corticosteroids and antiplatelet agents were less effective in adults, particularly older individuals, due to increased chronic lesions.

    • Impact:

    • Findings highlight the need for age-stratified management strategies in IgA nephropathy.
    • Suggests potential benefits of lipid-lowering agents and ACE inhibitors for older IgAN patients with chronic lesions.
    • Informs clinical practice regarding the variable impact of IgAN across the lifespan.