Bancos de sementes do solo trazem informações sobre a flora atual e permitem cenários futuros as comunidades vegetais. O objetivo deste trabalho foi determinar o percentual germinação ex situ um banco em diferentes níveis luminosidade. A amostragem ocorreu floresta primária explorada sob pousio no município Moju, estado Pará, Brasil. Foram coletadas 10 amostras compostas por quatro simples parc...

Plants have been used for medical purposes since the beginning of human history and are the basis of modern medicine. Most chemotherapeutic drugs for cancer treatment are molecules identified and isolated from plants or their synthetic derivatives. Our hypothesis was that whole plant extracts selected according to ethnobotanical sources of historical use might contain multiple molecules with an...

Tourniquets are used in extremity surgery and provide a relatively bloodless field, thereby minimizing blood loss and helping identify the vital structures. However, they may cause an ischemia-reperfusion injury with potentially harmful local and systemic consequences. Many therapeutic effects such as diuretic, natriuretic, hypotensive, anti-rheumatic, anti-prostatic, and in-vitro anti-oxidant ...

Cecropia glaziovii Sneth (Urticaceae) is a common tree from Southeast and South of Brazil, being widely used in traditional medicine to treat heart and respiratory conditions. C-glycosylflavonoids have being described as the major compounds for this genus, however, no seasonality studies of individual flavonoids was conducted for any Cecropia specie. In this work, the content of isoorientin and...

A total of 9 plant extracts were tested, using two different kinds of extracting methods to evaluate the antioxidant and antimicrobial activities from Pilea microphylla (Urticaceae family) and including toxicity test. Antioxidant activity were tested by using DPPH free radical scavenging, also total phenolic contents and total flavonoid contents were determined. Toxicity assay carried out by us...

Experimental work on Polygonia c-album, a temperate polyphagous butterfly species, has shown that Swedish, Belgian, Norwegian and Estonian females are generalists with respect to host-plant preference, whereas females from UK and Spain are specialized on Urticaceae. Female preference is known to have a strong genetic component. We test whether the specialist and generalist populations form resp...

Amaç: Bu çal›flmada, streptozin ile diyabet gelifltirilen s›çanlarda, Urtica dioica yapraklar›n›n hidroalkol ekstrakt›n›n, karaci¤erde gözlenen kantitatif morfometrik de¤ifliklikler üzerine olan koruyucu etkisinin araflt›r›lmas› amaçlanm›flt›r. Yöntem: Otuz adet erkek Wistar cinsi s›çan kontrol (G1), diyabetik (G2) ve diyabetik+Urtica dioica (G3) olmak üzere 3 gruba ayr›ld›lar. Kontrol grubuna ...