Cnidoscolus urens (L.) Arthur Show All Show Tabs cnidoscolus. General Information. Symbol: CNUR. Group: Dicot. Family: Euphorbiaceae. Duration: Perennial. Cnidoscolus urens var. stimulosus. Cnidoscolus urens (L.) Arthur var. stimulosus (Michx.) Govaerts. Finger Rot, Tread Softly. Euphorbiaceae. Cnidoscolus urens (L.) Arthur Taxonomic (Download Help) Cnidoscolus urens TSN Variety, Cnidoscolus urens var. stimulosus ( Michx.).

Author: Volkree Shakanris
Country: Barbados
Language: English (Spanish)
Genre: Life
Published (Last): 25 February 2006
Pages: 312
PDF File Size: 17.67 Mb
ePub File Size: 15.96 Mb
ISBN: 386-9-42887-227-7
Downloads: 30588
Price: Free* [*Free Regsitration Required]
Uploader: Gazilkree

The principal pollinator during the dry season is a butterfly, Eurema dairawhich does not discriminate between male and female flowers. This page was last edited on 4 October uerns, at As the common names imply, the urticating hairs on this plant contain a caustic irritant that inflicts a painful sting to those who contact it with bare skin. Cysteine protease Capparin from capsules of caper Capparis spinosa Food Technol.

By using this site, you agree utens the Terms of Use and Privacy Policy. Find articles by Matheus de F. On the other hand, F1. Metal ions are important cofactors for the catalytic activity of several enzymes. Regarding this possible toxic action, even at the higher concentrations tested, C. Cnidoscolus urens is a perennial, tropical American stinging herb belonging to the family Euphorbiaceaeand is one of some species belonging to the genus Cnidoscolus Gk. Ficin, a cysteine protease derived from Ficus caricaactivated human Factor X and induced blood coagulation [ 9 ].

The influence of snake venom enzymes on blood coagulation. Clotting activity of F1. SDS is an anionic surfactant and has high negative charge and a hydrophobic tail that interacts with the cnidoscous chains, disrupting hydrophobic interactions [ 28 ].

Eletrophoretic Profile and Zymography F1. Medicinal plants used as antitumor agents in Brazil: We also investigated the effect of F1.


The human blood samples were collected from healthy volunteers.

Plant Database

Fibrinogenolytic activity of C. Uchoa and Ivanise M. The washed clot was then incubated with different doses of fraction F1.

At the highest protein concentration tested 0. Proteases are proteolytic enzymes naturally found in all organisms [ 17 ]. These tests are important and contribute to verify if the enzyme under study belongs to the class of cysteine protease [ 2529 ]. Views Read Edit View history. In order to verify the presence of fibrinolytic activity, plasma clots were incubated with F1. Proteolytic digestive enzymes and peritrophic membranes during the development of Plodia interpunctella Lepidoptera: In time-dependent assay, fibrinogen was incubated with 0.

Since plasma clots were used in this study, one possible reason for this result is the presence of plasmatic inhibitors and factor XIIIa fibrin stabilizer factorwhich could decrease the affinity of F1.

This plant is also known as bull nettle and mala mujer Spanish for “bad woman” or witchthough the latter name is applied to several other plants with similar properties. The gels were stained with silver staining; B Zymogram gels.

Cnidoscolus urens — Wikipédia

All images are copyrighted and are the property of the Lady Bird Johnson Wildflower Center and the photographers. The presence of bands with proteolytic activity upon gelatin, albumin and fibrinogen were detected by gel zymography, with molecular weights ranging from kDa to 50 kDa, as observed in Figure 2 B. Procoagulant activity of Calotropis gigantea latex associated with fibrin ogen olytic activity. Its carunculate seeds are usually dispersed by ants myrmecochory attracted by the edible elaiosome.

After 4 h, the animals were sacrificed by overdose of thiopental and blood collected by cardiac puncture.

In-gel protease assay was performed as previously described [ 32 ] with modifications, using 0. Snake venom fibrin ogen olytic enzymes. A new fibrinolytic enzyme 55 kDa from Allium tuberosum: Molecular and biotechnological aspects of microbial proteases. It can cause a painful, irritating rash and can cause more serious reactions with some people. The experiments were performed in accordance with the guidelines established for the care of laboratory animals.


As an example, fibrinogenolytic enzymes of snake venoms, associated with activators from coagulation cascade procoagulant toxinscan contribute to the production of a consumption coagulopathy [ 22 ].

Additionally, these versatile biomolecules have numerous applications in the industrial segment. The reaction was stopped and stained by adding 0. Azocaseinolytic Assay The azocaseinolytic activity of F0. Heisch, Randy Henderson, Mary S. Find Cnidoscolus urens var. The proteolytic activity was inhibited by E, EDTA and in the presence of metal ions, and increased when cnidoscoljs with reducing agents, suggesting that the observed activity was mostly due to cysteine proteases.

Sweeney, Collene Swint, Richard B. Proteases are involved in processes such as protein catabolism, blood clotting, cell growth and migration, tissue formation, morphogenesis in development, inflammation, tumor growth, activation of zymogens, release of peptide hormones and pharmacologically active proteins and also in precursor protein transport cnidpscolus membranes [ 18 ]. Absence of toxic effects assessed in models of hemorrhagic and hemolytic activities, and the detection fibrinogenolytic, pro-coagulant and fibrinolytic activity were verified and indicate the potential application of proteases present in C.

The interest in proteolytic enzymes has grown and shown great importance due to the variety of physiological activities that they play, in addition to their application in various industrial segments, including the pharmaceutical industry [ 27 ].

Three protein-rich fractions were obtained from the crude extract of C.