Tagitinin A is a sesquiterpene with anti-hyperglycemic activity. Tagitinin A significantly inhibits glucose uptake in differentiated 3T3-L1 adipocytes[1].
References
[1] Zhao G, et al. Three new sesquiterpenes from Tithonia diversifolia and their anti-hyperglycemic activity. Fitoterapia. 2012 Dec;83(8):1590-7. DOI:10.1016/j.fitote.2012.09.007