Análise funcional da proteína 14-3-3 de Paracoccidioides brasiliensis e prospecção de alvos terapêuticos inibidores da interação de P. brasiliensis à pneumócitos

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

Desenvolvimento de biossensores capacitivos constituídos de monocamadas peptídicas nanometricamente estruturadas

Pós-graduação em Biotecnologia - IQ

Serological study of brucellosis and leptospirosis in equines of island Maiandeua (Algodoal) state of Para

The aim of this study was to study the seroepidemiological profile of brucellosis and leptospirosis in horses traction Island Maiandeua, state of Para. In two distinct periods, blood samples were collected from 52 animals of both sexes and different ages (2 to 17 years), totaling 104 samples. For the research of antibodies anti-Brucella abortus were used in rapid agglutination test in plate. In the first harvest, none animal was positive, however in the second harvest there were three animals reactive serum. The research of antibodies anti-Leptospira spp. was performed with the use of the microscopic agglutination test (MAT), the first harvest was 23.07% reacting animals and 15.38% at the second harvest, for one or more Leptospira spp. with titers ranging from 100 to 200. The predominant serotype at first and second harvest was the Autumnalis 40% and 37.5% respectively. According to age, it was observed in group 1 (2 to 7 years) 27.78% and 13.89% respectively in the two samples and the second group (> 7 years) was found 12.50% and 18 75% of reactive serum. The results observed in this study demonstrated that the island of Maiandeua, state of Para, there is the presence of Leptospira spp, with the most frequent serovar autumnalis and possible exposure of animals to brucella smooth, suggesting low risk of infection in the population of horses examined.

Funcionalidade das proteínas EF-Tu e 14-3-3 na virulência de Paracoccidioides brasiliensis

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

Quantificação do fator de crescimento semelhante a insulina I (IGF-I) em plasma bovino por ELISA

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Imunohistoquímica em órgãos de tilápias-do-Nilo imunizadas com antígeno insolúvel de Streptococcus agalactiae

Pós-graduação em Medicina Veterinária - FCAV

Detecção do peptídeo p17 (HIV) baseado em SERS (Surface-enhanced Raman Spectrosocpy)

Pós-graduação em Química - IQ

Efeito de chalconas e/ou anticorpos anti gp43 na infecção por Paracoccidioides spp

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Efeito de chalconas e/ou anticorpos anti gp43 na infecção por Paracoccidioides spp

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Conjunctival inflammation in patients under topical glaucoma treatment with indication to surgery

PURPOSE: To compare the frequency of conjunctival HLA-DR expression (a surrogate marker for inflammation) in eyes treated with topical prostaglandin analogues versus eyes treated with other topical antiglaucomatous drugs. METHODS: Patients diagnosed with primary open-angle glaucoma presenting indication for trabeculectomy were divided in groups according to the use or not of prostaglandin analogues. All subjects were treated with the maximum tolerated dose of antiglaucomatous drugs until the date of the surgery. At the beginning of the surgical procedure, a 5 x 5 mm biopsy of the bulbar conjunctiva was collected, incubated with monoclonal anti-HLA-DR antibody and processed for histological analysis. RESULTS: Of the 31 eyes included (31 patients), 25 were under topical prostaglandin analogues (Group 1) and six under other topical pharmacological agents (Group 2). Fourteen eyes of Group 1 (56%) and three of Group 2 (50 %) were positive for the inflammatory marker HLA-DR (P=1.0). The percentage of stained cells ranged from 15.49 to 48.09% (median: 27.61) in Group 1, and from 18.35 to 28 (median: 20.71) in Group 2, with no differences statistically significant (p=0.33). CONCLUSION: The use of prostaglandin analogues did not increase conjunctival expression of HLA-DR compared to other topical antiglaucomatous agents.

In vitro differentiation of mesenchimal stem cells of dogs into osteogenic precursors

Lima S.A.F., Wodewotzky T.I., Lima-Neto J.F., Beltrao-Braga P.C.B. & Alvarenga F.C.L. 2012. [In vitro differentiation of mesenchimal stem cells of dogs into osteogenic precursors.] Diferenciacao in vitro de celulas-tronco mesenquimais da medula ossea de caes em precursores osteogenicos. Pesquisa Veterinaria Brasileira 32(5):463-469. Departamento de Reproducao Animal e Radiologia Veterinaria, Faculdade de Medicina Veterinaria e Zootecnia, Universidade Estadual Paulista, Campus de Botucatu, Distrito de Rubiao Junior s/n, Botucatu, SP 18618-970, Brazil. E-mail: silviavet@usp.br The aim of our research was to evaluate the potential for osteogenic differentiation of mesenchimal stem cells (MSC) obtained from dog bone marrow. The MSC were separated using the Ficoll method and cultured under two different conditions: DMEM low glucose or DMEM/F12, both containing L-glutamine, 20% of FBS and antibiotics. MSC markers were tested, confirming CD44+ and CD34- cells with flow cytometry. For osteogenic differentiation, cells were submitted to four different conditions: Group 1, same conditions used for primary cell culture with DMEM supplemented media; Group 2, same conditions of Group 1 plus differentiation inductors Dexametazone, ascorbic acid and beta-glicerolphosphate. Group 3, Cells cultured with supplemented DMEM/F12 media, and Group 4, same conditions as in Group 3 plus differentiation inductors Dexametazone, ascorbic acid and beta-glicerolphosphate. The cellular differentiation was confirmed using alizarin red and imunostaining with SP7/Osterix antibody. We observed by alizarin staining that calcium deposit was more evident in cells cultivated in DMEM/F12. Furthermore, by SP/7Osterix antibody immunostaining we obtained 1:6 positive cells when using DMEM/F12 compared with 1:12 for low-glucose DMEM. Based on our results, we conclude that the medium DMEM/F12 is more efficient for induction of differentiation of mesenchymal stem cells in canine osteogenic progenitors. This effect is probably due to the greater amount of glucose in the medium and the presence of various amino acids.

The expanded spectrum of neuromyelitis optica - evidences for a new definition

Neuromyelitis optica (NMO) has been traditionally described as the association of recurrent or bilateral optic neuritis and longitudinally extensive transverse myelitis (LETM). Identification of aquaporin-4 antibody (AQP4-IgG) has deeply changed the concept of NMO. A spectrum of NMO disorders (NMOSD) has been formulated comprising conditions which include both AQP4-IgG seropositivity and one of the index events of the disease (recurrent or bilateral optic neuritis and LETM). Most NMO patients harbor asymptomatic brain MRI lesions, some of them considered as typical of NMO. Some patients with aquaporin-4 autoimmunity present brainstem, hypothalamic or encephalopathy symptoms either preceding an index event or occurring isolatedly with no evidence of optic nerve or spinal involvement. On the opposite way, other patients have optic neuritis or LETM in association with typical lesions of NMO on brain MRI and yet are AQP4-IgG seronegative. An expanded spectrum of NMO disorders is proposed to include these cases.

The expanded spectrum of neuromyelitis optica: evidences for a new definition

Neuromyelitis optica (NMO) has been traditionally described as the association of recurrent or bilateral optic neuritis and longitudinally extensive transverse myelitis (LETM). Identification of aquaporin-4 antibody (AQP4-IgG) has deeply changed the concept of NMO. A spectrum of NMO disorders (NMOSD) has been formulated comprising conditions which include both AQP4-IgG seropositivity and one of the index events of the disease (recurrent or bilateral optic neuritis and LETM). Most NMO patients harbor asymptomatic brain MRI lesions, some of them considered as typical of NMO. Some patients with aquaporin-4 autoimmunity present brainstem, hypothalamic or encephalopathy symptoms either preceding an index event or occurring isolatedly with no evidence of optic nerve or spinal involvement. On the opposite way, other patients have optic neuritis or LETM in association with typical lesions of NMO on brain MRI and yet are AQP4-IgG seronegative. An expanded spectrum of NMO disorders is proposed to include these cases.

Associação entre doenças imunológicas e suas manifestações clínicas semelhantes

Trata-se de um caso de uma paciente de 30 anos do sexo feminino, com prótese biológica valvar mitral em razão de estenose mitral sintomática e antecedentes de infarto agudo do miocárdio, episódios de convulsões tônico-clônicas generalizadas, alucinações visuais, eventos tromboembólicos cerebrais, apresentando no momento coreia e cardite aguda. Foram diagnosticados na paciente febre reumática em atividade, lúpus eritematoso sistêmico e síndrome do anticorpo antifosfolipídeo. A combinação de três diagnósticos incomuns em um mesmo paciente torna esse caso único, modificando o tratamento e seu prognóstico.

Trombose coronariana como primeira complicação da aíndrome antifosfolípide

A síndrome do anticorpo antifosfolípide (SAF) é uma trombofilia autoimune, caracterizada pela presença de anticorpos plasmáticos contra fosfolípides, associada a episódios recorrentes de trombose venosa e/ou arterial e morbidade gestacional (especialmente abortamento de repetição). Reportamos o caso de uma paciente feminina, jovem, com diagnóstico de lúpus eritematoso sistêmico (LES), associado à presença de anticorpos antifosfolípide de longa data, com apresentação de infarto agudo do miocárdio (IAM) por trombose proximal da artéria descendente anterior como primeira complicação clínica da SAF.