Lago JH , Toledo-Arruda AC , Mernak M , Barrosa KH , Martins MA , Tibério IF , Prado CM .

	Figure 1. Classification of flavonoids based on their chemical structure.
	Figure 2. Chemical structures of flavonoids 1–50.
	Figure 3. Inflammatory response and cells involved in inflammatory cascade. * shows the steps that provide evidence that flavonoids can act to counteract the inflammatory response.
	Figure 4. Structure of quercetin as example of important requisites (unsaturation in the C ring, number and position of hydroxyl groups at ring B, carbonyl group at C-4 and non-glycosylation) for anti-inflammatory activity of flavonoids.

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