Studies: Use of Propolis for Treating Cancer, Respiratory Infections

Brazilian Natural Dietary Components (Annatto, Propolis And Mushrooms) Protecting Against Mutation And Cancer
Human and Experimental Toxicology, 2006 May;25(5):267-72

This review summarizes some of our studies conducted to verify the anti-mutagenic and anti-carcinogenic potential of some Brazilian natural dietary constituents (annatto, mushrooms, and propolis). Overall data have shown a clear role for these compounds in preventing mutation and specific preneoplastic lesions. Taken together, these agents indicate a favorable side-effect profile and may prove to be a promising alternative for cancer prevention strategies, although more investigation is needed to fully explore this issue.

Antibacterial Activity of Propolis and its Active Principles…Against Microorganisms Responsible for Respiratory Infections
Journal of Chemotherapy, 2006 Apr;18(2):164-71

In this study the in vitro activity of both an alcoholic solution and a hydroglyceric extract of propolis, as well as its active principles, was tested against bacteria responsible for respiratory infections (Streptococcus pneumoniae, Haemophilus influenzae, Haemophilus parainfluenzae, Moraxella catarrhalis and Streptococcus pyogenes). We also evaluated the in vitro activity of a combination of propolis and its active principles and some beta-lactams, macrolides and fluoroquinolones. Our results, though not demonstrating a clearly synergistic activity between antibiotics and propolis and its constituents, show the possibility of using natural preparations, due to their antimicrobial and anti-inflammatory properties, to enhance antibacterial therapy.