A carboxylic acid, C19H27COOH, obtained from retinol by oxidation and used in ointments to treat acne.
- For the research, Stephensen exposed mouse immune-system cells, in petri dishes, to a form of vitamin A known as retinoic acid, along with a protein that mimics an infectious microbe.
- For the study, 266 long-time smokers who had kicked the habit at least one year previously were randomly assigned to receive two forms of retinoic acid - commonly known as vitamin A - or a placebo.
- Because of the known teratogenic side effects of high-dose vitamin A, there is limited application of retinoic acid for women of reproductive age.
1970s: from retina.
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Syllabification: ret·i·no·ic ac·id
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