Consulta: creatorFacets:"Weffort-Santos,Almeriane Maria"
Registros recuperados: 2
Data/hora: 10/06/2024 04:44:00

Comparison of chemical constituents of Chamomilla recutita (L.) rauschert essential oil and its anti-chemotactic activity
Provedor de dados: 52
Autores: Presibella,Mayra Marinho; Villas-Bôas,Larissa De Biaggi; Belletti,Klézia Morais da Silva; Santos,Cid Aimbiré de Moraes; Weffort-Santos,Almeriane Maria.
Several essential oil samples from dried flower-heads of Chamomilla recutita (L.) Rauschert, grown and commercially available around Curitiba metropolitan area, South of Brazil, were analyzed by GC-MS and the chemical constituents were compared with an Egyptian sample obtained under similar conditions and used as a control. The local grown herbs showed levels of essential oil below the standards recommended by the Brazilian Pharmacopoeia. Also, differences in their composition as well as in the quantity of several components were found such as the unexpected inversion of the relative constitution of the A and B alpha-bisabolol oxides. Of particular interest was the striking effect of the chamomile extracts upon human leukocyte chemotaxis, a biological...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chamomilla recutita; Asteraceae; Essential oil; Chemotaxis; Bisabolol oxide.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000600005

Alkaloid-rich fraction of Himatanthus lancifolius contains anti-tumor agents against leukemic cells
Provedor de dados: 60
Autores: Lima,Melissa Pires de; Hilst,Luciana Farhat; Mattana,Fernanda Vanessa Rechinbach; Santos,Cid Aimbiré de Moraes; Weffort-Santos,Almeriane Maria.
The effects of the alkaloid-rich fraction of Himatanthus lancifolius (Müll. Arg) Woodson on normal marrow cells and leukemic cell lines were investigated. After 48 h exposure, the proliferation assay showed significant cell growth inhibition for Daudi (0.1-10 µg/mL), K-562 (1-10 µg/mL), and REH cells (10-100 µg/mL), yet was inert for normal marrow cells. A similar inhibition profile was observed in clonogenic assays. This alkaloid-rich fraction, in which uleine is the main compound, showed no signs of toxicity to any cells up to 10 µg/mL. Cell feature analyses after induction of differentiation showed maintenance of the initial phenotype. Flow cytometric expression of Annexin-V and 7-AAD in K-562 and Daudi cells has indicated that the cells were not...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apocynaceae; Cell proliferation; Himatanthus lancifolius; Indole alkaloids; Leukemia; Plant extract.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502010000200014