Syncytium
Mostrando 1-12 de 536 artigos, teses e dissertações.
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1. The sexual dimorphic inguinal glands of the frog species Ololygon centralis (Anura: Hylidae) at light and transmission electron microscopy
ABSTRACT The anuran skin characteristically has different types of glands, most of which are microscopic and are spread throughout the skin. Some species have specialized regions where glands agglomerate, forming macroglands. The description of the external morphology of Ololygon centralis (Pombal & Bastos, 1996) revealed the presence of an inguinal gland. O
Zoologia (Curitiba). Publicado em: 22/07/2019
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2. Estudo proteômico de vermes adultos machos e fêmeas de Schistosoma mansoni / Proteomic studies of male and female Schistosoma mansoni adult worms
Schistosomiasis is a neglected tropical disease that affects approximately 200 million people around the world, occurring in America, Africa, the Antilles, Middle East and Near East, besides Southeast Asia. The species found in Brazil is Schistosoma mansoni, the typical treatment being administration of either Praziquantel or Oxamniquine. Although, the infec
Publicado em: 2011
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3. Biochemical and immunological characterization of ATP- diphosphohydrolases 1 and 2 from Schistosoma mansoni parasite / Caracterização bioquímica e imunológica das enzimas recombinantes ATP-difosfohidrolases 1 e 2 do parasita Schistosoma mansoni
ATPDases or ATP-diphosphohydrolases are enzymes that cleave ATP and ADP to AMP and Pi and are involved in inhibition of platelet aggregation. In the parasite Schistosoma mansoni our group had identified and cloned the ATPDase1 gene and localized the protein on the tegument surface. Recently, we cloned the ATPDase2 gene using S. mansoni EST databank informati
Publicado em: 2008
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4. Expressão de proteínas do vírus da dengue em células de inseto utilizando o sistema baculovírus de expressão
Dengue is the most common mosquito-borne viral disease of humans and its infection may evolve to a potentially lethal disease known as Dengue haemorrhagic fever (DHF). This disease is caused by a positive-sense, single-stranded, enveloped RNA virus that belongs to the genus Flavivirus within Flaviviridae and its genome is organized in a single ORF which enco
Publicado em: 2007
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5. Placentation in rock cavies, Kerodon rupestris (Wied, 1820) / Placentação em mocós, Kerodon rupestris Wied, 1820
Placentation studies of fourteen rock cavy females in different gestation phases were conducted. Females were pre-anesthetized associating ketamine chloridrate (15mg/kg) and midazolan (1mg/kg). Soon afterwards, they were anesthetized by isoflurane inhalation in association with oxygen at 100% saturation. After anesthesia, the surgery allowed to exhibit fetal
Publicado em: 2004
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6. Ultrastructural alterations in adult Schistosoma mansoni caused by artemether
Progress has been made over the last decade with the development and clinical use of artemether as an agent against major human schistosome parasites. The tegument has been identified as a key target of artemether, implying detailed studies on ultrastructural damage induced by this compound. We performed a temporal examination, employing a transmission elect
Memórias do Instituto Oswaldo Cruz. Publicado em: 2002-07
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7. Scanning and transmission electron microscopy of the tegument of Paranaella luquei Kohn, Baptista-Farias & Cohen, 2000 (Microcotylidae, Monogenea), parasite of a Brazilian catfish, Hypostomus regani
The surface topography and ultrastructure of the tegument of Paranaella luquei Kohn, Baptista-Farias & Cohen, 2000, a microcotylid monogenean parasite from the gills of Hypostomus regani (Ihering, 1905) (Loricariidae) was studied by scanning (SEM) and transmission electron microscopy (TEM). By SEM, it was observed that the tegument presents transversal ridge
Memórias do Instituto Oswaldo Cruz. Publicado em: 2001-05
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8. Ultrastructure and cytochemistry of the tegument of Atriaster heterodus (Platyhelminthes: Monogenea)
The tegument of the polyopisthocotylean monogenean Atriaster heterodus Lebedev & Parukhin, 1969 was studied using transmission electron microscopy. The outer syncytial layer of the tegument is connected to the internal cell bodies by cytoplasmic extensions which interweave between the muscular fibres. The free surface of the syncytium has projections of the
Memórias do Instituto Oswaldo Cruz. Publicado em: 2000-12
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9. Human immunodeficiency virus type 1 clones chimeric for the envelope V3 domain differ in syncytium formation and replication capacity.
Chimeric human immunodeficiency virus type 1 (HIV-1) molecular clones differing only in the envelope V3 region were constructed. The V3 regions were derived from two HIV-1 isolates with a non-syncytium-inducing, non-T-cell-tropic phenotype and from four HIV-1 isolates with a syncytium-inducing, T-cell-tropic phenotype. When assayed in SupT1 cells, the two ch
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10. Differential syncytium-inducing capacity of human immunodeficiency virus isolates: frequent detection of syncytium-inducing isolates in patients with acquired immunodeficiency syndrome (AIDS) and AIDS-related complex.
Human immunodeficiency virus isolates were studied with respect to syncytium-inducing capacity, replicative properties, and host range. Five of 10 isolates from patients with acquired immunodeficiency syndrome (AIDS) and AIDS-related complex were able to induce syncytia in cultures of peripheral blood mononuclear cells (MNC). In contrast, only 2 of 12 isolat
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11. Syncytium formation by recombinant vaccinia viruses carrying bovine parainfluenza 3 virus envelope protein genes.
The highly syncytium-inducing M strain and the weakly syncytium-inducing SC strain of bovine parainfluenza 3 virus differ by a single amino acid substitution in each of the hemagglutinin-neuraminidase (HN) and membrane (M) proteins, while their fusion (F) proteins are identical (T. Shioda, S. Wakao, S. Suzu, and H. Shibuta, Virology 162:388-396, 1988). We co
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12. 3'-Azido-3'-deoxythymidine-induced reduction in the ability of uninfected CD4-expressing cells to participate in syncytium formation.
A cocultivation assay system consisting of uninfected human T cells and cells chronically infected with human immunodeficiency virus type 1 has been used to investigate syncytium formation in short-term assays. Continuous treatment or short-term pretreatment of uninfected CD4-expressing human T-cell lines with 3'-azido-3'-deoxythymidine (AZT) reduces the abi