Articles: PubMed:Piper umbellatum L.: a medicinal plant with gastric-ulcer protective and ulcer healing effects in experimental rodent models. PubMed:Anticancer and Anti-Inflammatory Activities of a Standardized Dichloromethane Extract from Piper umbellatum L. Leaves. PubMed:Evaluation of acute toxicity, antibacterial activity, and mode of action of the hydroethanolic extract of Piper umbellatum L. PubMed:Piper species protect cardiac, hepatic and renal antioxidant status of atherogenic diet fed hamsters. PubMed:An analysis of two indigenous reproductive health illnesses in a Nahua community in Veracruz, Mexico. PubMed:Secondary metabolites from polar fractions of Piper umbellatum. PubMed:Antioxidant and anti-atherogenic activities of three Piper species on atherogenic diet fed hamsters. PubMed:Piper umbellatum L.: a comparative cross-cultural analysis of its medicinal uses and an ethnopharmacological evaluation. PubMed:Bioactive aristolactams from Piper umbellatum. PubMed:In vitro antioxidant activity of three Piper species. PubMed:Antioxidant capacity of some herbs/spices from cameroon: a comparative study of two methods. PubMed:Inhibitory effects of Piper umbellatum and Piper peltatum extracts towards myotoxic phospholipases A2 from Bothrops snake venoms: isolation of 4-nerolidylcatechol as active principle. PubMed:Tapping an Amazônian plethora: four medicinal plants of Marajó Island, Pará (Brazil). PubMed:Ecological significance of light controlled seed germination in two contrasting tropical habitats. PubMed:[Psychopharmacologic profile of an aqueous extract of Piper umbellatum]. PubMed:[A PLANT INSECTIFUGE: PIPER UMBELLATUM].