Renal function in dry cleaning workers exposed to perchloroethylene.

Area of Science:

• Occupational Health
• Toxicology
• Nephrology

Background:

• Perchloroethylene (PCE) is a common solvent in dry cleaning and degreasing.
• Limited data exists on PCE's renal effects at typical occupational exposure levels.
• Animal and human studies suggest renal effects at very high doses.

Purpose of the Study:

• To investigate the relationship between PCE exposure and kidney function markers in dry cleaning workers.
• To assess urinary protein, albumin, and NAG/creatinine ratios in relation to PCE exposure.
• To explore potential associations with demographic factors and medical history.

Main Methods:

• Collected urine, breath, and exposure/medical history data from 192 dry cleaning workers.
• Utilized regression models to analyze relationships between exposure variables and renal outcome markers.
• Included demographic variables, mean arterial blood pressure (MAP), and pre-existing kidney conditions in the analysis.

Main Results:

• No consistent relationship was found between PCE exposure and urinary renal outcome variables.
• Urinary protein/creatinine and albumin/creatinine showed weak positive associations with MAP.
• Urinary NAG/creatinine was weakly associated with age and higher in non-white individuals.

Conclusions:

• The study did not establish a clear link between occupational PCE exposure and kidney damage markers in dry cleaners.
• Factors like MAP, age, and race showed weak associations with specific renal biomarkers.
• Further investigation is needed to understand the lack of association and potential subtle effects of PCE on kidney function.