| Effect | Decrease |
| Trial Design | Non-controlled trial |
| Trial Length | 6+ Months |
| Number of Subjects | 25 |
| Sex | Both Genders |
| Age Range | 65+ |
10g of the plant _stephania tertranda_ (given in three divided doses via a water extract) thrice daily over 12 weeks is associated with a 56% reduction in human elastase in serum and a reduction in lipid peroxidation. No placebo group was used and a previously ingested Kampo formulation (started before the trial and maintained without change) could have potentially influenced the results.
