|
|
|
|
|
| Pollito,Percy A. Zevallos; Tomazello,Mario. |
| As plantas de Uncaria guianensis e U. tomentosa são lianas trepadeiras, arbustos trepadores ou rasteiros ascendentes que ocorrem em amplas áreas da Amazônia brasileira e países da América Central e do Sul. Possuem excepcional importância medicinal, com sua casca, lenho e folhas utilizadas pelos povos amazônicos e pela indústria farmacêutica. Face a necessidade da identificação das plantas em condições de campo e de laboratório, o presente trabalho descreveu a estrutura anatômica do lenho de Uncaria guianensis e U. tomentosa, ocorrentes no Estado do Acre, Brasil. Os resultados mostraram que o lenho das espécies é característico da família Rubiaceae, a exceção dos vasos arredondados, grandes e solitários, parenquima axial difuso e largura dos raios que são... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anatomia do lenho; Liana; Rubiaceae; Uncaria guianensis; Uncaria tomentosa. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672006000200006 |
| |
|
| |
|
|
| Moreno,S.R.F.; Silva,A.L.C.; Diré,G.; Honeycut,H.; Carvalho,J.J.; Nascimento,A.L.; Pereira,M.; Rocha,E.K.; Oliveira-Timóteo,M.; Arnobio,A.; Olej,B.; Bernardo-Filho,M.; Caldas,L.Q.A.. |
| The aim of the present study was to determine the effect of the oral ingestion of an extract of the herb Uncaria tomentosa (cat's claw) on the biodistribution of the radiobiocomplex sodium pertechnetate (Na99mTcO4) in rats. The animals (male Wistar rats, 2 months old, 180-220 g), were treated (1 mL) with an U. tomentosa extract (32 mg/mL, N = 5) or 0.9% NaCl solution (control, N = 5) for 7 days. After this period, Na99mTcO4 (3.7 MBq, 0.3 mL) was injected through the ocular plexus and after 10 min the rats were killed, the organs isolated and counted in a well-gamma counter. A significant (P < 0.05) alteration in Na99mTcO4 uptake i) from 0.57 ± 0.008 to 0.39 ± 0.06 %ATI/organ (P < 0.05) and from 0.57 ± 0.17 to 0.39 ± 0.14 %ATI/g (P < 0.05) was... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Uncaria tomentosa; Biodistribution; Sodium pertechnetate; Radiobiocomplex. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000100010 |
| |
|
| |
|
| |
|
|
| Moreno,Silvana Ramos Farias; Carvalho,Jorge José de; Nascimento,Ana Lúcia; Olej,Beni; Rocha,Emely Kazan; Arnobio,Adriano; Bernardo-Filho,Mário; Caldas,Luiz Querino de Araújo; Honeycut,Hayden. |
| The influence (in vivo and in vitro) of an Uncaria tomentosa extract (Cats claw) on the labeling of red blood cells (RBCs) and plasma and cellular proteins with technetium-99m (Tc-99m) was evaluated. For the in vivo treatment, animals were treated with Cats claw. For the in vitro treatment, heparinized blood was incubated with Cats claw before the addition of stannous chloride (SnCl2) and Tc-99m. Samples of plasma (P) and RBCs were separated and also precipitated with trichloroacetic acid. The soluble and insoluble fractions of P and RBCs were isolated. The analysis of the results of the in vivo study, indicates that there is no significant alteration on the uptake of Tc-99m by the blood constituents, but it significantly decrease (p<0.05) the labeling... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Uncaria tomentosa; Technetium-99m; Radiolabeling; Blood constituents. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000700024 |
| |
|
|
|
