Which compound is known to have anti-inflammatory properties found in Devil's Claw plant?

Harpagoside is the compound known for its anti-inflammatory properties found in the Devil's Claw plant (Harpagophytum procumbens). This compound functions as a glucoside of harpagoside and is thought to exert its effects by inhibiting the synthesis of pro-inflammatory cytokines and enzymes, thus reducing inflammation and pain associated with conditions like arthritis.

The Devil's Claw has been traditionally used in African medicine for its analgesic and anti-inflammatory effects, particularly for treating conditions affecting the musculoskeletal system. Harpagoside is considered one of the key active constituents contributing to these therapeutic benefits.

In contrast, the other compounds listed do not share the same profile concerning anti-inflammatory effects in this context. Paclitaxel is primarily known as a chemotherapeutic agent used to treat various cancers. Diosgenin is a steroid saponin often associated with hormonal effects and potential pharmaceutical applications, but it does not play a significant role in inflammation. Digitoxin is a cardiac glycoside used to treat heart conditions and does not have anti-inflammatory properties linked to the Devil's Claw. Hence, harpagoside stands out as the correct answer due to its specific efficacy against inflammation.