2010
DOI: 10.1016/j.phytochem.2010.06.007
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Sesquiterpene lactones from Vernonia scorpioides and their in vitro cytotoxicity

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Cited by 48 publications
(31 citation statements)
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“…The asterisks denote the significance levels when compared with control groups. Significantly different from control (C), *p < 0.05, **p < 0.01, and ***p < 0.001. and cinnamic acid derivatives (caffeic acid and ethyl caffeate) (Buskuhl et al, 2010), and also a polyacetylene (Buskuhl et al, 2009).…”
Section: Discussionmentioning
confidence: 99%
“…The asterisks denote the significance levels when compared with control groups. Significantly different from control (C), *p < 0.05, **p < 0.01, and ***p < 0.001. and cinnamic acid derivatives (caffeic acid and ethyl caffeate) (Buskuhl et al, 2010), and also a polyacetylene (Buskuhl et al, 2009).…”
Section: Discussionmentioning
confidence: 99%
“…These results could be related to the α,β-unsaturated carbonyl groups in these compounds, which seems to be important for their cytotoxicity (Lee et al, 1971). The EAIII evaluated in this work was phytochemically investigated in parallel, revealing the presence of sesquiterpene lactones (glaucolides and hirsutinolides) such as diacethylpiptocarphol and related hirsutinolides, flavonoids and cinnamic acid derivatives (Buskuhl et al, 2010), and also a polyacetylene (Buskuhl et al, 2009) (Figure 1). …”
Section: Discussionmentioning
confidence: 99%
“…A análise por CCDA permitiu reuni-las em 15 grupos (B-I a B-XV). O grupo B-V (hexano/CH 2 Cl 2 9,5:0,5; 131,3 mg), após fracionamento sobre gel de sílica (5,7 g) com os solventes hexano e CH 2 Cl 2 , em gradiente crescente de polaridade, resultou na obtenção de 113,4 mg de um sólido (hexano/CH 2 Cl 2 49:1) que, apesar de apresentar uma única mancha em CCDA, se constitui em uma mistura dos acetatos de taraxasterila (1) e lupeol (2). 10 O grupo A-III (hexano/CH 2 Cl 2 4:1, 7:3 e 2:3; 2,05 g) foi disposto sobre 24,0 g de gel de sílica e submetido a uma coluna cromatográfica, utilizando um gradiente de hexano/CH 2 Cl 2 (49:1 até CH 2 Cl 2 ) e, depois, AcOEt.…”
Section: Extração E Isolamentounclassified
“…2 Estudos prévios dos extratos brutos e das frações revelaram que esta espécie apresenta relevantes propriedades farmacológicas, como antitumoral e citotóxica, além de antibacteriana e fungicida. 3 Várias espécies de Vernonia são muito difundidas na medicina tradicional, em diversas partes do mundo, principalmente nos continentes americano e africano.…”
Section: Introductionunclassified
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