Juvenile hormone B 3 (Juvenile hormone III bisepoxide) (mixture of diastereomers) 是一种倍半萜类激素。它可以从果蝇和黑腹果蝇等高等双翅目昆虫的翅体 (CA) 中分离,具有抗变态活性。Juvenile hormone B 3 (mixture of diastereomers) 通过与幼虫激素 (JH) 受体 (Met和Gce) 的直接作用,诱导Kr-h1的表达,可用于昆虫致死性研究。
Nimbin is an anti-pyretic, can be used to treat arthritis, hypoglycaemia, peptic ulcers, anti-secretory activity, and it can also be used as an antibiotic. Nimbin requires to elicit a 50% inhibition of this steroid hydroxylase activity in the three insect
Vestitol is a phytoalexin with insect feeding-deterrent activity, it has antioxidant, anti-inflammatory and antimicrobial activities, it can inhibit neutrophil migration at a dose of 10 mg/kg, and shows MICs ranging from 25-50 to 50-100 ug/mL and MBCs ranging from 25-50 to 50-100 ug/mL.Vestitol exerts a limited inhibitory effect on S. hermonthica germination, it can significantly inhibit seedling growth, it also contributes, at least in part, to the host's defence mechanism and acts as a chemical barrier against the intrusion of the parasite.