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Related Experiment Video

Updated: Jun 23, 2026

A Mouse Ear Model for Allergic Contact Dermatitis Evaluation

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Published on: March 24, 2023

[Occupational allergic contact dermatitis in Dakar].

Suzanne Oumou Niang¹, Mohamed Cissé, Fall Mame Coumba Gaye

¹Service de Dermatologie du CHU Le Dantec de Dakar BP 3001. suzeoumou@yahoo.com

Le Mali Medical

|May 14, 2009

Summary

Occupational contact dermatitis is rising in Senegal, with dichromate of potassium and formaldehyde being key allergens. Prevention through protective gear and worker education is crucial to reduce incidence.

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Published on: September 27, 2017

Area of Science:

Dermatology
Occupational Health
Allergology

Context:

Rising incidence of occupational dermatitis globally due to new allergens and industrial processes.
Occupational contact dermatitis cases in Senegal are underreported to social security institutions.
Need for epidemiological data on occupational contact dermatitis in Senegal.

Purpose:

Determine the frequency of occupational allergic contact dermatitis in Senegal.
Identify the specific allergens responsible for occupational contact dermatitis.
Identify occupations at highest risk for occupational contact dermatitis.

Summary:

A prospective study identified 27 cases of occupational contact dermatitis among 201 patients over one year.
Predominant sectors affected include building, mechanics, health, cleaning, and trade.
Key allergens identified were potassium dichromate, N-isopropyl N-phenylparaphenylenediamine, fragrance mix, thiuram mix, colophane, formaldehyde, nickel sulfate, and chalk.

Impact:

Highlights the significant role of potassium dichromate in cement and formaldehyde in paints within the building sector.
Identifies N-isopropyl N-phenylparaphenylenediamine in rubber and fragrance mix in oils as causes in mechanics.
Points to thiuram mix in gloves and potassium dichromate in antiseptics as sources for health workers.
Emphasizes the need for enhanced prevention strategies, including personal protective equipment and increased medical surveillance and worker information.