Does moderation here refer to "a change for the better"?

Context:
Moderation of chemo–induced cancer by water extract of dried shark fin : anti–cancer effect of shark cartilage

Abstract
It is now well recognized that matrix metalloproteinase (MMP) plays significant roles in cancer progression. Shark cartilage contains the MMP inhibitors. On the basis of these findings, oral administration of the shark cartilage has been proposed to suppress cancer progression and improve quality of life of cancer patient. Now, the “shark cartilage therapy” is popular in USA, Japan and other countries. However, there are conflicting data on the effectiveness of the therapy. In addition, knowledge on the active component responsible for the potential anti-cancer effect is limited. To facilitate the further study on the anti-cancer effect of shark cartilage and utilization of shark fin cartilage, a by-product from fisheries industry, moderation of chemo-induced cancer by the water extract of dried shark fin is discussed.

Copyright © 2004 Elsevier B.V. All rights reserved.

More:
http://www.sciencedirect.com/science/article/pii/S0167450104800189