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Antinociceptive effects of the essential oil of Croton zehntneri in mice BJMBR
Oliveira,A.C.; Leal-Cardoso,J.H.; Santos,C.F.; Morais,S.M.; Coelho-de-Souza,A.N..
Croton zehntneri is an aromatic plant native to Northeastern Brazil, where it is often used in folk medicine. In the present study the antinociceptive effects of the essential oil of Croton zehntneri (EOCz) were evaluated in mice. EOCz administered orally at doses of 100 and 300 mg/kg reduced paw licking time in the second phase of the formalin test from the control value of 41.61 ± 8.62 to 12.01 ± 7.97 and 6.57 ± 3.42 s, respectively. During the first phase of the formalin test only 300 mg/kg induced a significant alteration (from 58.2 ± 7.02, control, to 28.7 ± 4.73 s). The number of contortions in response to intraperitoneal injections of acetic acid did not differ significantly between controls (80.6 ± 9.01) and experimental (300 mg/kg body weight)...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Croton zehntneri; Essential oil; Analgesic; Antinociception; Formalin test; Hot-plate test.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001001100016
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Isolation, characterization and evaluation of antimicrobial and cytotoxic activity of estragole, obtained from the essential oil of croton zehntneri (euphorbiaceae) Anais da ABC (AABC)
ANDRADE,THALLITA C.B.; LIMA,SIDNEY G. DE; FREITAS,RIVELILSON M.; ROCHA,MÁRCIO S.; ISLAM,TOREQUL; SILVA,TERESINHA G. DA; MILITÃO,GARDENIA C.G..
Croton zehntneri (Euphorbiaceae) is a native aromatic plant from Northeast region of Brazil. The monoterpenoid estragole (ESL) has been isolated by classical chromatographic methods from the essential oil (EO) of C. zehnteneri leaves and characterized by GC-FID and GC-MS, its antimicrobial and cytotoxic potentials being assessed. The analysis of the EO enabled the identification of 100% of the integrated constituents, of which yield was about 1.8%. The main components identified were: eucalyptol, estragole (84.7%) and spathulenol. The dosage of 50 μg/disk of ESL presented fairly significant zones of inhibition against Gram-positive bacteria and fungi. The ESL presented toxicity against Artemia salina with LC50 and LC90 of 4,54 and 8,47 μg mL-1. However, in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antimicrobial; Croton zehntneri; Cytotoxic; Estragole.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000100173
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