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Dimethylformamide and alcohol intolerance.

W H Lyle, T W Spence, W M McKinneley

British Journal of Industrial Medicine

|February 1, 1979

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Workers exposed to dimethylformamide (DMF) experienced flushing, especially after drinking alcohol. This reaction may be due to the metabolite N-methylformamide (MF) inhibiting acetaldehyde metabolism.

Area of Science:

Occupational Health
Toxicology
Biochemistry

Background:

Dimethylformamide (DMF) is an industrial solvent with potential health risks.
Worker exposure to DMF can lead to adverse symptoms.
Alcohol consumption is a known factor that can exacerbate chemical exposures.

Purpose of the Study:

To investigate the symptoms experienced by workers exposed to DMF.
To explore the relationship between DMF exposure, alcohol consumption, and adverse reactions.
To identify potential mechanisms behind the observed DMF-ethanol interaction.

Main Methods:

Monitoring of 102 male workers exposed to DMF in their workplace.
Collection of self-reported symptoms, including facial flushing.

Related Experiment Videos

Analysis of urine samples for the presence of the metabolite N-methylformamide (MF).

Measurement of DMF concentrations in the air.

Main Results:

Facial flushing and other symptoms were reported by 19 out of 102 male workers.
Alcohol consumption preceded 26 out of 34 reported symptom episodes.
N-methylformamide (MF) was detected in urine samples from exposed workers.
Peak DMF air concentration reached 200 ppm, and peak MF urine concentration was 77 µg/L.

Conclusions:

A significant association exists between DMF exposure, alcohol consumption, and adverse symptoms like facial flushing.
The DMF-ethanol reaction is likely caused by the inhibition of acetaldehyde metabolism by the metabolite N-methylformamide (MF).
This finding highlights the importance of understanding metabolic interactions in occupational toxicology.