Lethal Time
Mostrando 1-12 de 566 artigos, teses e dissertações.
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1. Dysautonomia Evaluation by Holter in Chagas Heart Disease
Abstract Background Sudden cardiac death is the main lethal mechanism associated with Chagas cardiomyopathy. Studies suggest that dysautonomia may represent a relevant, intense, independent, and early phenomenon in the natural history of the disease, even when ventricular systolic function is preserved, and may also be the mechanism that triggers malignant
International Journal of Cardiovascular Sciences. Publicado em: 2022
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2. Positive Heparin/PF4 Antibodies and High Mortality Rate: a Retrospective Case-Series Analysis
Abstract Introduction: Heparin-induced thrombocytopenia (HIT) is a potentially lethal complication of unfractionated or low-molecular weight heparin therapy. We aimed to determine the incidence and mortality rate of patients with positive heparin/platelet factor 4 (PF4) antibodies, which is a rapid detection test of HIT. Methods: Coronary artery bypass gra
Braz. J. Cardiovasc. Surg.. Publicado em: 2020-12
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3. Bergenin of Peltophorum dubium (Fabaceae) Roots and Its Bioactive Semi-Synthetic Derivatives
This work describes the isolation of pure bergenin from Peltophorum dubium roots with good yields and its further derivatization through Williamson synthesis. The alkyl derivatives of the bergenin were identified by nuclear magnetic resonance and mass spectrometry data analysis. Among them, three derivatives were reported for the first time herein, 8,10-dihe
J. Braz. Chem. Soc.. Publicado em: 2020-12
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4. 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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5. Moringa water extract promising additive to prolong the activity of baculovirus under field-sunlight conditions in Egypt
Resumo Os baculovírus são considerados como biopesticidas eficazes, exceto por não estarem ativos sob condições de luz solar. O objetivo deste estudo é avaliar a capacidade do extrato de moringa para prolongar a atividade do vírus sob condições de campo egípcias, tendo em vista que Moringa provou ser um material protetor forte sob investigação an
Braz. J. Biol.. Publicado em: 02/12/2019
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6. TOXICITY OF ALKALOID FRACTIONS FROM Psychotria spp. (RUBIACEAE) AGAINST Atta sexdens FOREL, 1908 (HYMENOPTERA: FORMICIDAE)
ABSTRACT Leaf-cutting ants are the main pests in forest plantations. The most commonly used chemical control for the ants is toxic bait. However, the active ingredients in these baits have been restricted by forest certification organizations, justifying the search for new active compounds to control these insects. Thus, this work aimed to evaluate the formi
CERNE. Publicado em: 09/09/2019
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7. Peppermint essential oil as an anesthetic for and toxicity to juvenile silver catfish
Resumo: O objetivo deste trabalho foi avaliar a toxicidade e o potencial como anestésico do óleo essencial de hortelã-pimenta (Mentha piperita) para juvenis de jundiá (Rhamdia quelen). Para determinar a concentração letal em 4 horas (CL50-4h), 210 peixes (3,08±0,8 g e 7,59±0,67 cm) foram expostos a 0, 20, 50, 80, 110 e 140 mg L-1 do óleo essencial.
Pesq. agropec. bras.. Publicado em: 27/06/2019
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8. Composite-derived monomers affect cell viability and cytokine expression in human leukocytes stimulated with Porphyromonas gingivalis
Abstract Objectives: Dental composites release unreacted resin monomers into the oral environment, even after polymerization. Periodontal cells are, therefore, exposed to substances that potentially elicit the immune inflammatory response. The underlying molecular mechanisms associated with the interaction between resin monomers and human immune cells found
J. Appl. Oral Sci.. Publicado em: 03/06/2019
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9. The ERBB2 gene polymorphisms rs2643194, rs2934971, and rs1058808 are associated with increased risk of gastric cancer
Gastric cancer (GC) is the third most lethal type of cancer worldwide. Single nucleotide polymorphisms (SNPs) in regulatory sites or coding regions can modify the expression of genes involved in gastric carcinogenesis, as ERBB2, which encodes for the tyrosine-kinase receptor HER-2. The aim of this work was to analyze the association of the polymorphisms: rs2
Braz J Med Biol Res. Publicado em: 16/05/2019
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10. TOXICITY OF Esenbeckia pumila Pohl (Rutaceae) ON Artemia salina AND Atta sexdens rubropilosa
RESUMO A avaliação de moléculas com atividade inseticida provenientes de plantas que apresentam atividade tóxica ou repelente cresceu nos últimos anos, tendo como um dos principais alvos de estudo as formigas cortadeiras, consideradas as principais pragas das plantações brasileiras, especialmente do gênero Atta. Sendo assim, o objetivo deste trabalho
Rev. Caatinga. Publicado em: 09/05/2019
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11. Establishment of a Pathogenicity Index for Mice to Pasteurella multocida Strains Isolated from Poultry and Swine
ABSTRACT Fowl cholera is a contagious disease that results from infection by the bacterium Pasteurella multocida. This microorganism is extensively distributed among animal species, but little is known regarding it’s pathogenesis and specificity to various hosts. Many studies using pathogenicity evaluation methods are subjective and difficult to quantify b
Braz. J. Poult. Sci.. Publicado em: 2018-04
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12. The demographic features, clinical outcomes, prognosis and treatment options for patients with sarcomatoid carcinoma of the urinary bladder: a single centre experience
ABSTRACT Introduction Carcinosarcoma of the bladder is a very rare neoplasm. The pathogenesis of carcinosarcomas is not clearly understood and remains a subject of debate. Whilst there is some research conceptualizing the histopathological findings of bladder carcinosarcomas, the demographic features, clinical outcomes, prognosis and treatment options remai
Int. braz j urol.. Publicado em: 2018-02