J. D. de Siqueira

Publications18
h-index7
Citations210
Highly Influential Citations10
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Baccharis trimera: effect on hematological and biochemical parameters and hepatorenal evaluation in pregnant rats.
AIM OF THE STUDY This investigation evaluated the effect of a hydroethanolic extract of Baccharis trimera on pregnant Wistar rats, once the plant is well-known consumed in pregnancy and little is… Expand
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N-nitrosoanonaine and N-nitrosoxylopine, aporphine alkaloids from Duguetia furfuracea.
Two new aporphine alkaloids, N-nitrosoanonaine (1) and N-nitrosoxylopine (2), were isolated from the aerial parts of Duguetia furfuracea, a weed found in several Brazilian regions. Their structures… Expand
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New herbicide models from benzoxazinones: aromatic ring functionalization effects.
The utility of benzoxazinones and some of their synthetic derivatives in the search for new leads for herbicide model development has been widely discussed. As the benzoxazinone skeleton contains… Expand
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Antineoplastic activity of selected constituents of Duguetia glabriuscula.
The cytotoxic effects of seven constituents isolated from Duguetia glabriuscula were evaluated against Hep2 human larynx carcinoma cells. The cytotoxicity exhibited by beta-sitosterol was as strong… Expand
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Achyrocline alata potentiates repair of skin full thickness excision in mice.
Plants of the Asteraceae family have been traditionally used as medicinal plants. The species Achyrocline satureioides and Achyrocline alata present anti-inflammatory properties and great chemical… Expand
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The antitumoral, trypanocidal and antileishmanial activities of extract and alkaloids isolated from Duguetia furfuracea.
The alkaloid extract and five alkaloids isolated from subterranean stem bark of Duguetia furfuracea (Annonaceae) were investigated for the following activities: antitumoral, trypanocidal and… Expand
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Larvicidal activity of essential oil of Peumus boldus Molina and its ascaridole-enriched fraction against Culex quinquefasciatus.
Culex quinquefasciatus (Say, 1823), known as the domestic mosquito, is a common and abundant species throughout the world, and a cosmopolitan species. The adults of this mosquito are important in… Expand
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Anti-inflammatory effects of the butanolic fraction of Byrsonima verbascifolia leaves: Mechanisms involving inhibition of tumor necrosis factor alpha, prostaglandin E(2) production and migration of…
The leaves of Byrsonima verbascifolia (Malpighiaceae) are traditionally used to treat various diseases including inflammatory conditions. The main goal of this study was to evaluate the in vivo… Expand
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Aromatic-ring-functionalised benzoxazinones in the system Oryza sativa-Echinochloa crus-galli as biorational herbicide models.
BACKGROUND Barnyardgrass, Echinochloa crus-galli (L.) Beauv., is one of the most problematic weeds occurring in rice crops. Although efficient chemical control is provided by herbicides available on… Expand
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In vivo and in vitro anti-inflammatory properties of Achyrocline alata (Kunth) DC.
ETHNOPHARMACOLOGICAL RELEVANCE Achyrocline alata is a locally marketed (Mato Grosso do Sul/ Brazil) herb used in folk medicine as an anti-inflammatory and a sedative. Evaluate the anti-inflammatory… Expand
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