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Scientists are reporting development of a fast, uncombined, inexpensive means for determining whether chemicals in consumer products and workplaces may undertaking skin allergies in people — a method that does not embrace use of animals. Their study appears in ACS’ Chemical Research in Toxicology, a monthly journal.

Itai Chipinda and his colleagues report the existence of the people sentiment against the appliance of animals to determine whether ingredients in consumer soaps, shampoos and other consumer products, and workplace chemicals, may efficient cause skin sensitization and contact dermatitis. Chemicals cause dermatitis by the agency of bonding to proteins in the skin, and then aggravating the immune a whole in the same state that redness, irritation, itching, and other symptoms occur. Existing chemical tests use substances like glutathione that imitative skin proteins and bond to allergy-causing ingredients. None, yet, are suitable for use in detecting the critical betimes stages of hide sensitization, the scientists say.

Instead of glutathione, Chipinda and his team developed a test through nitrobenzenethiol as the skin protein surrogate. When used on 20 different chemicals known to cause hide inflammation, the test produced positive results. It produced negative results then used to test substances that usually do not produce skin sensitization. “This simple, hasty and inexpensive absorbance-based method has great potential on the side of use viewed like a introduction screening instrument notwithstanding skin allergens,” the recital states.

Article: “Rapid and Simple Kinetics Screening Assay for Electrophilic Dermal Sensitizers Using Nitrobenzenethiol”

Source:
Michael Bernstein
American Chemical Society

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