|
|
|
| Registros recuperados: 943 | |
|
|
| BLA,Verçosa; ACJ,Borges; FJM,Mendes; MLS,Costa; NB,Pereira; MN,Melo; IL,Mendonça; FAL,Costa; AC,Vasconcelos. |
| The skin has an important role in the transmission of visceral leishmaniasis (VL) as the infection pathway in dogs. To better characterize the inflammatory response of intact skin in VL, sixty infected dogs (30 symptomatic and 30 asymptomatic) and six non-infected controls were studied. Diagnosis of visceral leishmaniasis was confirmed by RIFI and ELISA; direct visualization of the parasite in bone marrow aspirate; imprints of popliteal lymph nodes, spleen, liver and skin; culture in NNN-phase liquid Schneider's medium; and PCR (performed only in the ear skin). Amastigote forms of the parasite in intact skin were found only in symptomatic dogs. Inflammatory infiltrates were observed in all groups, varying from intense and/or moderate in symptomatic to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Visceral leishmaniasis; Inflammation; Parasites; Leishmania chagasi. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992011000300011 |
| |
|
|
| Pinto,MCL; Melo,MB; Cruz,ML; Verçosa Junior,D; Melo,MM. |
| Accidental envenomation caused by Tityus serrulatus scorpions is very common in Brazil and may result in serious cardiorespiratory alterations that are frequently fatal to children. In the present study, the effects of T. serrulatus venom on the cardiorespiratory system of recently weaned male Wistar rats were evaluated. Fifteen animals were distributed into three groups (n = 5). The control group A received 400 μL ultrapure water by subcutaneous injection, while the experimental groups B and C were injected with scorpion venom (100 and 450 μg, respectively, in 400 μL water). Electrocardiogram (ECG) traces were obtained prior to the experiment, at five-minute intervals up to 30 minutes after treatment. At 40 minutes after envenomation, the animals had... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tityus serrulatus; Rats; Electrocardiography; CK; CK-MB; Troponin; Pulmonary hemorrhages. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992010000200008 |
| |
|
| |
|
| |
|
| |
|
|
| Karimzadeh,L; Nabiuni,M; Sheikholeslami,A; Irian,S. |
| Polycystic ovarian syndrome (PCOS) is a low grade inflammatory disease characterized by hyperandrogenemia and chronic anovulation. C-reactive protein (CRP), released by adipocytes, plays a key role in PCOS. Apis mellifera honeybee venom (HBV) contains a variety of biologically active components with various pharmaceutical properties. This study was designed to assess the possibility of HBV application as an anti-inflammatory therapeutic agent. To induce PCOS, 1 mg/100 g body weight estradiol valerate (EV) was subcutaneously (SC) injected into eight-week-old rats. After 60 days, 0.5 mg/kg HBV was administered SC for 14 consecutive days, and the results of PCOS treatment were investigated. Rats were then anesthetized with chloroform, and their ovaries and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Polycystic ovarian syndrome (PCOS); Honeybee venom (HBV); C-reactive protein (CRP); Estradiol valerate (EV); Corpus luteum; Chemiluminescence immunoassay. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992012000400006 |
| |
|
| |
|
| |
|
| |
|
|
| Alexandre,Tatiana Rodrigues; Lima,Marta Lopes; Galuppo,Mariana Kolos; Mesquita,Juliana Tonini; Nascimento,Matilia Ana do; Santos,Augusto Leonardo dos; Sartorelli,Patricia; Pimenta,Daniel Carvalho; Tempone,Andre Gustavo. |
| Abstract Background Major drawbacks of the available treatment against Chagas disease (American trypanosomiasis) include its toxicity and therapeutic inefficiency in the chronic phase of the infection, which makes it a concern among neglected diseases. Therefore, the discovery of alternative drugs for treating chronic Chagas disease requires immediate action. In this work, we evaluated the mushroom Pleurotus salmoneostramineus in the search for potential antiparasitic compounds. Methods Fruit bodies of the basidiomycete Pleurotus salmoneostramineus were triturated and submitted to organic solvent extraction. After liquid-liquid partition of the crude extract, three fractions were obtained and the bioguided fractionation study was conducted to isolate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pleurotus salmoneostramineus; Ergosterol; Trypanosoma cruzi; Mechanism of action. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992017000100313 |
| |
|
|
| Laïd,Y; Boutekdjiret,L; Oudjehane,R; Laraba-Djebari,F; Hellal,H; Guerinik,M; Griene,L; Alamir,B; Merad,R; Chippaux,JP. |
| Scorpion stings are a public health problem in the Maghreb region. In Algeria, epidemiological data were collected over the past twenty years by the Algerian health authorities. This study is an analysis of morbidity and mortality data collected from 2001 to 2010. Annual incidence and mortality due to scorpion envenoming were 152 ± 3.6 stings and 0.236 ± 0.041 deaths per 100,000 people (95% CI), respectively. The risk of being stung by a scorpion was dramatically higher in southern areas and central highlands due to environmental conditions. Incidence of envenoming was especially higher in the adult population, and among young males. In contrast, mortality was significantly higher among children under 15 years, particularly ages 1-4. Upper limbs were more... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Scorpion; Stings; Envenoming; Deaths; Epidemiology; Management; Algeria. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992012000400008 |
| |
|
|
| Sciani,Juliana Mozer; Zychar,Bianca; Gonçalves,Luis Roberto; Giorgi,Renata; Nogueira,Thiago; Pimenta,Daniel Carvalho. |
| Abstract Background Sea urchins are animals commonly found on the Brazilian shoreline, being Echinometra lucunter the most abundant species. Accidents caused by E. lucunter have been reported as one of the most frequent in Brazil, and are characterized by intense pain and inflammation, consequence of spine puncture in the skin. In order to characterize such toxic effects, we isolated one molecule that caused inflammatory and nociceptive effects. Methods E. lucunter specimens were collected without gender distinction. Spines were removed and molecules were extracted, fractionated by RP-HPLC and assayed for inflammatory and nociceptive activity, in a biological-driven fractionation way, until the obtainment of one active molecule and its subsequent... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Toxins; Sea urchin; Echinometra lucunter; Spines; Inflammation. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992017000100318 |
| |
|
| |
|
|
| Cutolo,André Antonio; Galati,Eunice Aparecida Bianchi; Von Zuben,Claudio José. |
| Background The study of the distribution and ecology of sandfly species is essential for epidemiological surveillance and estimation of the transmission risk of Leishmania spp. infection. Findings In the present study, sandflies were captured in native fragmented forest areas in Rubião Júnior district, Botucatu municipality, São Paulo state, Brazil, between September 2001 and January 2005. A minimum of two automatic light traps were installed per night from 6 pm to 8 am, in different months, resulting in approximately 900 collecting hours. During this period, 216 sandfly specimens of sixteen species were captured. Pintomyia monticola and Brumptomyia guimaraesi were the most abundant with 56 specimens (25.93%) captured per species, followed by Pintomyia... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Cutaneous leishmaniasis; Vector; Sandfly; Brazilian savannah; Semideciduous forest; Cuesta. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992013000100403 |
| |
|
|
| Ribeiro,Mara Fernandes; Oliveira,Felipe Leite de; Souza,Aline Moreira; Machado,Thelma de Barros; Cardoso,Priscilla Farinhas; Patti Sobrinho,Andrea; Nascimento,Angélica Silveira; Souza,Cláudio Maurício Vieira de; Elias,Sabrina Calil. |
| ABSTRACT Background: Accidents caused by spiders of the genus Loxosceles constitute an important public health problem in Brazil. The venom of Loxosceles sp induces dermonecrosis at the bite site and systemic disease in severe cases. Traditional medicine based on plant-derived products has been proven to reduce the local effects of envenomation. The present study verified the healing effects of copaiba oil on lesions induced by the venom of L. intermedia. Methods: Cutaneous lesions were induced on the backs of rabbits by intradermal injection of L. intermedia venom. Copaiba oil was applied topically 6 hours after injection; the treatment was repeated for 30 days, after which animal skins were removed and processed for histopathological analysis. Blood... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Loxosceles intermedia; Venom; Skin lesion; Copaiba oil; Topical treatment. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992019000100310 |
| |
|
| |
|
|
| Omran,M. A. A.. |
| Scorpion venom toxicity is of major concern due to its influence on human activities and public health. The cytotoxicity and apoptosis induced by scorpion L. quinquestriatus venom on two established eukaryotic cell lines (293T and C2C12) were analyzed. Both cultured cell lines were incubated with varying doses (10, 20, and 50 µg/ml) of scorpion venom in serum free medium (SFM) for 0.5, 1, 2, 4, and 8 hours at 37°C. The percentage of total lactate dehydrogenase (LDH) released in the culture during venom incubation was used as an index of cell damage. Control culture was treated with an equal amount of SFM. Cell injury was recognized morphologically and apoptosis was researched by a Fluorescing Apoptosis Detection System using the principle of TUNEL... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Scorpion venom; Leiurus quinquestriatus; Cytotoxicity; Apoptosis; LDH. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992003000200008 |
| |
|
|
| Costa,Fábio L. S.; Lima,Maria Elena De; Figueiredo,Suely G.; Ferreira,Rafaela S.; Prates,Núbia S.; Sakamoto,Tetsu; Salas,Carlos E.. |
| Abstract Background: Lethal factors are multifunctional oligomeric proteins found in the venomous apparatus of Scorpaeniformes fish. These toxins elicit not only an array of biological responses in vitro but also cardiovascular disorders and strong hemolytic, nociceptive and edematogenic activities in vivo. This work describes the cloning and molecular identification of two toxin subunits, denominated Sp-CTx-α and Sp-CTx-β, from scorpionfish venom ( Scorpaena plumieri ). Methods: The primary structures were deduced after cDNA amplification by PCR with primers from conserved sequences described in Scorpaeniformes toxins. Following DNA sequencing and bioinformatic analysis, the tridimensional structures of both subunits were modeled. Results: The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: CDNA; Lethal factor; Scorpaena plumieri; Scorpionfish; Venom gland. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992018000100315 |
| |
|
|
| Marassá,AM; Paula,MB; Gomes,AC; Consales,CA. |
| With a view toward investigating the feeding behavior of Culicidae mosquitoes from an area of epizootic yellow fever transmission in the municipalities of Garruchos and Santo Antônio das Missões, Rio Grande do Sul State, Brazil, specimens were collected by aspiration from September 2005 to April 2007. The engorged females were submitted to blood meal identification by enzyme-linked immunosorbent assay (ELISA). A total of 142 blood-engorged samples were examined for human or monkey blood through species-specific IgG. Additional tests for specificity utilizing isotypes IgG1 and IgG4 of human monoclonal antibodies showed that only anti-human IgG1 was effective in recognizing blood meals of human origin. The results indicated a significant difference (p =... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Culicidae; ELISA; Feeding habits; Isotypes; Yellow fever. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992009000400008 |
| |
|
| |
| Registros recuperados: 943 | |
|
|
|
