E. Silveira

Publications296
h-index36
Citations5,017
Highly Influential Citations175
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The impact of urbanization on tropical mangroves (Fortaleza, Brazil): evidence from PAH distribution in sediments.
This investigation represents the first environmental diagnosis of the distribution and sources of polycyclic aromatic hydrocarbons (PAHs) in sediments from a tropical mangrove in Fortaleza,… Expand
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Overview of the therapeutic potential of piplartine (piperlongumine).
Piplartine (piperlongumine, 5,6-dihydro-1-[(2E)-1-oxo-3-(3,4,5-trimethoxyphenyl)-2-propenyl]-2(1H)-pyridinone) is a biologically active alkaloid/amide from peppers, as from long pepper (Piper longum… Expand
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Induction of apoptosis by pterocarpans from Platymiscium floribundum in HL-60 human leukemia cells.
(+)-2,3,9-Trimethoxy-pterocarpan (1) (+)-3,9-dimethoxy-pterocarpan [(+)-homopterocarpin] (2), (+)-3-hydroxy-9-methoxy-pterocarpan [(+)-medicarpin] (3) and (+)-3,4-dihydroxy-9-methoxy-pterocarpan… Expand
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Removal of some polycyclic aromatic hydrocarbons from petrochemical wastewater using low-cost adsorbents of natural origin.
Removal of polycyclic aromatic hydrocarbons (PAHs) from petrochemical wastewater was investigated using various low-cost adsorbents of natural origin including sugar cane bagasse, green coconut… Expand
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Piplartine induces inhibition of leukemia cell proliferation triggering both apoptosis and necrosis pathways.
Piplartine {5,6-dihydro-1-[1-oxo-3-(3,4,5-trimethoxyphenyl)-2-propenyl]-2(1H)pyridinone} is an alkaloid/amide component of Piper species. The purpose of the present study was to examine the… Expand
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Piplartine, an amide alkaloid from Piper tuberculatum, presents anxiolytic and antidepressant effects in mice.
In the present work, we studied the effects of piplartine (PIP), an amide alkaloid isolated from the roots of Piper tuberculatum (Piperaceae), in the elevated plus maze, open field, rota rod,… Expand
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In vivo growth inhibition of sarcoma 180 by piperlonguminine, an alkaloid amide from the Piper species
Many authors have already emphasized that phytochemicals from spices have biological applications. Piperlonguminine is a known alkaloid amide from peppers, including Piper divaricatum. The aim of… Expand
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Bioassay-guided fractionation of pterocarpans from roots of Harpalyce brasiliana Benth.
Pterocarpans, a special kind of isoflavonoids possessing two contiguous benzofuran and benzopyran rings, have been reported as possessing several biological activities. In order to isolate and… Expand
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Determination of carbonyl compounds in air and cancer risk assessment in an academic institute in Fortaleza, Brazil
Carbonyl compounds (CCs) were measured in outdoor and indoor air of libraries, classrooms, laboratories, and offices at the Universidade Federal do Ceara´ , Fortaleza, Brazil, from 5 November to 20… Expand
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Gastroprotective mechanisms of centipedic acid, a natural diterpene from Egletes viscosa LESS.
This study was aimed to clarify the mechanisms of gastroprotection by centipedic acid (CPA), a natural diterpene from Egletes viscosa LESS. (Asteraceae) using ethanol-induced gastric mucosal damage… Expand
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