Investigation of local anesthetic and antimycobacterial activity of Ottonia martiana Miq. (Piperaceae).

Ottonia martiana is a plant popularly known in Brazil by the use for toothache. Ethanolic extract (EE), hexane fraction (HF), dichloromethane fraction (DF) and piperovatine obtained from O. martiana were assayed in vitro and in vivo.

Anti-Helicobacter pylori activity of plant extracts traditionally used for the treatment of gastrointestinal disorders.

The antibacterial activity of plant extracts obtained from Bixa orellana L., Chamomilla recutita L., Ilex paraguariensis A.

Genotoxicity of Achillea millefolium essential oil in diploid cells of Aspergillus nidulans.

The essential oil of Achillea millefolium is commonly used in folk medicine for the treatment of several diseases and has been demonstrated previously to exert an in vitro antimicrobial activity against human pathogens. Current study investigates the genotoxic activity of A. millefolium oil.