999 resultados para intoxicação aguda


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Considered as one of the main agents of the tripanossomiases, Trypanosoma evansi causes a disease generically know as surra, with wide geographic occurence. This work has the aim to study the electrophoretic profile of the acute phase proteins of goats, experimentally infected with T. evansi. Ten crossbread female goats, around 4 months of age, clinically healthy and serum negative for the presence of antibodies anti-T. evansi (IFAT) were used. The animals were divided in two groups: six were inoculated (G1) intravenously with 2,38 × 10 6 tripomastigotes of T. evansi and four were kept as noninfected controls. The blood for serum was collected daily until the 14 days after inoculation (DAI), weekly up to the 98 th DAI and every two weeks up to the 364 th DAI. The serum proteins were separacted by sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDSPAGE). Twenty-one proteins were found in the serum of the goats, eight were nominally identified; phosphorylase, transferrin, albumin, antitrypsin, acid glicoprotein, haptoglobin, hemoglobin, and light chain immunoglobulin.

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The present study reports the occurrence of lead poisoning in a male, 2 year-old mongrel dog attended at UNESP Botucatu Veterinary Hospital. The animal was brought to the hospital with claim of gastrointestinal and nervous disturbs for 10 days, worsening in the last 24 hours. After unsuccessfully attempts to control status epileticus, the animal died. Hematological evaluation revealed significant rubricytosis and basophilic stippling, highly suggestive of lead poisoning. Serum lead concentration confirmed toxic levels of this element. Necropsy evidenced the presence of foreign bodies in stomach (one stone and two metallic objects) and, microscopically, characteristic inclusions in renal parenchyma. Fragments obtained from liver and kidneys revealed lead concentrations of 0, 8 μg/g and 25 μg/g, respectively, which in association to clinical signs of saturnism, determined the diagnosis of lead poisoning.

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Background: Fondaparinux is considered an agent with a well-established safety and efficacy profile in the treatment of non-ST segment elevation acute coronary syndromes, but when used alone, is associated to a higher incidence of thrombotic complications during invasive coronary procedures, requiring the supplementation of an anti-IIa agent. This study aimed to evaluate the efficacy and safety of percutaneous coronary intervention (PCI) in patients with non-ST segment elevation acute coronary syndromes previously treated with fondaparinux. Methods: Prospective, controlled registry enrolling 127 consecutive patients submitted to an early invasive stratification during treatment with fondaparinux, with supplementation of intravenous unfractionated heparin at a dose of 85 U/kg at the time of PCI. Results: The rate of the composite primary endpoint including death, acute myocardial infarction, stroke, stent thrombosis or emergency myocardial revascularization was 3.2%. The cumulative incidence of major bleeding and vascular complications was 3.2%. There were no cases of guidecatheter thrombosis or abrupt vessel closure. Conclusions: PCI in patients with acute coronary syndromes receiving fondaparinux is associated with a low rate of major adverse cardiovascular ischemic events and severe hemorrhagic complications. Supplementation of unfractionated heparin during the invasive procedures eliminates the risk of catheter-related thrombosis.

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The effects of swim bladder injection with thioglycolate, Escherichia coli lipopolysaccharide (LPS) and heat-inactivated Aeromonas hydrophila were assessed on hematological responses in pacu, Piaractus mesopotamicus (Characidae). A quantitative assessment was done on erythrocytes, thrombocytes e leucocytes at 6, 24, and 48 h pos-injection of the inflammatory agents and compared with fish injected with saline solution (control). Fish injected with inactivated A. hydrophila showed a reduction of erythrocytes and hemoglobin, whereas the hematocrit increased 6 h pos-injection. The results show that thioglycolate and LPS also induced a reduction on hemoglobin and an increase on the hematocrit. The thrombocytes count decreased 6 h post A. hydrophila injection, whereas increased 48 hours post LPS injection. The leukocytes count increased after 6 h post A. hydrophila injection, while the lymphocytes and PAS-positive granular leukocytes (PAS-LG) count decreased after 24 h post injection. In fish injected with thioglycolate or with LPS showed an increase in the LG-PAS counts when compared to A. hydrophila or control groups. The monocytes count was not affected by the different inflammatory agents.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Pós-graduação em Ciências Biológicas (Biologia Celular e Molecular) - IBRC

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Pós-graduação em Ciência Animal - FMVA