Lethal Effect
Mostrando 1-12 de 1192 artigos, teses e dissertações.
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1. Photocatalytic degradation of ferricyanide as synthetic gold mining wastewater using TiO2 assisted by H2O2
Abstract Ferricyanide Fe(CN) 6 3- is one of the most stable cyanometallic complexes present in the gold mining effluents. This cyanocomplex is hard to degrade by natural attenuation and generates a negative impact on aquatic environments. Although free cyanide (CN-) can be obtained by acidifying the solution, the CN- is lethal for all forms of life. The oxid
REM, Int. Eng. J.. Publicado em: 2020-03
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2. Fumigant toxicity of some essential oils against Red Flour Beetles, Tribolium castaneum (Herbst) and its safety to mammals
Resumo Atividades fumigantes de três óleos essenciais - óleo de alho (Allium sativum L.); pimenta-malagueta (Capsicum annuum L.) e Nigella (Nigella sativa L.) - foram avaliadas em diferentes concentrações contra adultos e larvas de Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) com 20 dias de idade em laboratório. A mortalidade acumulada foi
Braz. J. Biol.. Publicado em: 02/12/2019
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3. Exposição crônica ao cloridrato de metformina e à glibenclamida causa alterações comportamentais, glicêmicas e de mortalidade em Hemigrammus caudovittatus e Danio rerio
RESUMO Hemigrammus caudovittatus e Danio rerio foram expostos aos hipoglicemiantes orais (HOs) cloridrato de metformina a 40µg/L e 120µg/L e glibenclamida a 0,13µg/L e 0,39µg/L durante 100 dias. Foram avaliados os efeitos tóxicos dos fármacos em relação ao peso, ao comportamento animal, à glicemia e à mortalidade. H. caudovittatus expostos à menor
Arq. Bras. Med. Vet. Zootec.. Publicado em: 28/10/2019
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4. CONTACT TOXICITY OF ESSENTIAL OIL OF Croton pulegiodorus BAILL ON Sitophilus zeamais MOTSCHULSKY
RESUMO O objetivo do presente estudo foi avaliar a toxicidade por contato do óleo essencial de Croton pulegiodorus Baill sobre seis populações de Sitophilus zeamais Motschulsky. As populações de S. zeamais utilizadas apresentam diferentes padrões de susceptibilidade a inseticidas sintéticos e foram provenientes dos municípios de Crixás - GO, Espíri
Rev. Caatinga. Publicado em: 18/07/2019
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5. Pode o etiltrinexapac estimular o crescimento de mudas de eucalipto?
Resumo Reguladores vegetais e herbicidas atuam e modificam diversos processos metabólicos nas plantas. A aplicação de doses subletais destes compostos pode ser utilizada de modo a modular o desenvolvimento e o crescimento das plantas, um efeito denominado hormesis. Múltiplos estudos têm relatado o efeito promotor de doses subletais de etiltrinexapac no
Ciênc. Florest.. Publicado em: 30/05/2019
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6. Enzyme Replacement Therapy for Fabry Disease
Abstract Fabry disease is a rare X-linked disease caused by the deficiency of α-galactosidase that leads to the accumulation of abnormal glycolipid. Untreated patients develop potentially lethal complications by age 30 to 50 years. Enzyme replacement therapy is the current standard of therapy for Fabry disease. Two formulations of recombinant human α-galac
J. inborn errors metab. screen.. Publicado em: 30/05/2019
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7. Perspectives and Applications of Natural Products as Civilian Defense Devices
Civilian defense devices are physical and chemical artefacts used to incapacitate an aggressor without causing death or injury. As city violence increases, safety feelings became worst and a growing commercial demand for these materials supply faces technologically challenges not only to riot control but also to self-protection. Controversies on the use of t
J. Braz. Chem. Soc.. Publicado em: 23/05/2019
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8. Effect of ethyl acetate extract of usnea longissima on esophagogastric adenocarcinoma in rats
Abstract Purpose: To investigate the effects of the EtOAc extract of U. longissima which is uninvestigated previously on esophagogastric cancer induced in rats with N-methyl-N-nitro-N-nitrosoguanidin (MNNG). Methods: The anticancer activity of EtOAc extract of U. longissima was examined in the esophagogastric adenocarcinoma models induced in rats with MN
Acta Cir. Bras.. Publicado em: 18/03/2019
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9. Efficacy of sertraline against Trypanosoma cruzi: an in vitro and in silico study
Abstract Background: Drug repurposing has been an interesting and cost-effective approach, especially for neglected diseases, such as Chagas disease. Methods: In this work, we studied the activity of the antidepressant drug sertraline against Trypanosoma cruzi trypomastigotes and intracellular amastigotes of the Y and Tulahuen strains, and investigated its
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 29/11/2018
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10. Lethal concentration of methyl methanesulfonate in a new potential invertebrate model for ecotoxicology
Abstract Sensitivity to different concentrations (0-200 mgL-1) of the alkylating agent methyl methanesulfonate (MMS) was evaluated in the new potential invertebrate model, the amphipod Quadrivisio lutzi (Shoemaker, 1933) after 48 h of exposure in two separate bioassays. In the first bioassay (0, 50, 100 and 200 mgL-1 MMS), all amphipods at concentrations ≥
Nauplius. Publicado em: 01/11/2018
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11. Essential oil of Pterodon polygalaeflorus Benth attenuates nociception in mice
Essential oils (EO) are volatile liquids responsible for the aroma of plants. Pterodon polygalaeflorus seeds have received widespread use in folk medicine for the treatment of inflammatory diseases. For this reason and because Pterodon polygalaeflorus seeds have great EO content, which is frequently pharmacologically active, the present study aimed to evalua
Braz J Med Biol Res. Publicado em: 04/10/2018
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12. Larvicidal effect of Clinopodium macrostemum essential oil extracted by microwave-assisted hydrodistillation against Culex quinquefasciatus (Diptera: Culicidae)
Abstract INTRODUCTION: In the present study, we determined the chemical composition of Clinopodium macrostemum essential oil obtained by microwave-assisted hydrodistillation and its effect on the growth and development of Culex quinquefasciatus mosquito larvae. METHODS: The essential oil compounds were identified by gas chromatography-mass spectrometry an
Rev. Soc. Bras. Med. Trop.. Publicado em: 2018-06