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Chronic Kidney Disease (CKD) progressively impairs multiple body systems due to the accumulation of uremic toxins, which disrupt cellular functions across various organs.Neurologic symptomsNeurologic symptoms often arise early in CKD, as uremic toxin buildup drives changes in cognitive and motor functions. Patients frequently experience fatigue, headache, confusion, difficulty concentrating, and, in severe cases, seizures. Peripheral neuropathy commonly manifests as burning sensations in the...
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Accurate diagnosis and effective prevention are critical in managing Acute Kidney Injury (AKI), which is linked to high mortality rates ranging from 10% to 80%. Timely recognition of at-risk patients and careful monitoring can significantly reduce the likelihood of kidney damage.Diagnostic Assessments:The diagnostic process starts with a comprehensive medical history to identify prerenal, intrarenal, and postrenal causes.Prerenal causes, such as dehydration, hypotension, or blood loss, should...
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Related Experiment Video

Updated: Apr 23, 2026

Development of Human Renal Tubular Epithelial Cell Primary Cultures in Monolayers and Three-Dimensional Conditions
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Low-level cadmium exposure and effects on kidney function.

Maria Wallin1, Gerd Sallsten1, Thomas Lundh2

  • 1Department of Occupational and Environmental Medicine, Sahlgrenska University Hospital and Academy, University of Gothenburg, Gothenburg, Sweden.

Occupational and Environmental Medicine
|October 8, 2014
PubMed
Summary
This summary is machine-generated.

Alpha-1-microglobulin (A1M) in urine indicates low-level cadmium exposure effects. Kidney function markers did not associate with cadmium in kidney biopsies, suggesting A1M is a sensitive biomarker.

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Area of Science:

  • Environmental Health
  • Nephrology
  • Biomarker Research

Background:

  • Cadmium nephrotoxicity at low exposure levels is debated.
  • Urinary cadmium and protein co-excretion may not solely indicate toxicity.
  • Direct measurement of cadmium in kidney tissue is needed.

Purpose of the Study:

  • To investigate the relationship between kidney function and cadmium levels measured directly in kidney biopsies.
  • To assess cadmium levels in kidney biopsies (K-Cd), blood (B-Cd), and urine (U-Cd).
  • To evaluate various kidney function biomarkers in relation to cadmium exposure.

Main Methods:

  • Cross-sectional study of 109 living kidney donors.
  • Analysis of K-Cd, B-Cd, and U-Cd.
  • Measurement of glomerular filtration rate (GFR), serum cystatin C, and urinary biomarkers (albumin, β-2-microglobulin, RBP, A1M, KIM-1).

Main Results:

  • Significant positive association between urinary α-1-microglobulin (A1M) excretion and K-Cd.
  • A1M also associated with B-Cd and U-Cd, even in never-smokers.
  • No significant associations found between K-Cd and GFR or other urinary kidney function biomarkers.

Conclusions:

  • Urinary A1M is a sensitive biomarker for low-level cadmium exposure effects.
  • Associations between other renal biomarkers and U-Cd were likely due to physiological co-excretion or chance.
  • Directly measured K-Cd did not correlate with standard kidney function markers.