Antigens Protozoan
Mostrando 1-12 de 53 artigos, teses e dissertações.
-
1. New insights into the detection and molecular characterization of Cryptosporidium with emphasis in Brazilian studies: a review
ABSTRACT Cryptosporidium spp. is a pathogenic protozoan present in the gastrointestinal tract of several hosts. This protozoan was originally classified as within the Coccidia Class and has recently been reclassified to gregarine based on studies that observed the evolutionary phases from the process of excision and sequencing of the 18S rRNA gene. Molecular
Rev. Inst. Med. trop. S. Paulo. Publicado em: 19/06/2019
-
2. Alta eficiência diagnóstica do teste IgM-ELISA utilizando múltiplos antígenos peptídicos (MAPs) de T. gondii (ESA SAG-1, GRA-1 e GRA-7) na diferenciação de formas clínicas da toxoplasmose / High diagnostic efficiency of IgM-ELISA with the use of multiple antigen peptides (MAPS) from T. gondii ESA (SAG-1, GRA-1 AND GRA-7 in acute toxoplasmosis
Os principais marcadores sorológicos para o diagnóstico da toxoplasmose aguda ou recente são os anticorpos IgM específicos e anticorpos IgG de baixa avidez. Entretanto em alguns pacientes, anticorpos IgM e baixa avidez de anticorpos IgG podem persistir, ultrapassando o período da fase recente aguda contribuindo para erros de interpretação diagnóstica
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/11/2011
-
3. AnÃlise da antigenicidade e expressÃo de quatro novas proteÃnas hipotÃticas de Leishmania.(Leishmania) Chagasi
Leishmaniasis are parasitary infectious-diseases endemic in many countries caused by protozoan parasites of the genus Leishmania. Current strategies to combat visceral leishmaniasis, the most lethal and often fatal form of the disease unless treated, have not so far been successful. For this reason identification of recombinant antigens that can be used in d
Publicado em: 2009
-
4. Proteção imunológica contra a formação de cistos cerebrais em camundongos vacinados pela via nasal com proteínas recombinates de Toxoplasma gondii
Toxoplasma gondii is a protozoan parasite which can invade and reside in a wide range of host cells. It can infect all warm-blooded animals, including human being. Parasite invasion is associated with protein secretion from three organelles: micronemes, rhoptries and dense granules. These excreted/secreted antigens were highly immunogenic in humans and roden
Publicado em: 2006
-
5. AnÃlise in silico da HSP83 de Leishmania chagasi: implicaÃÃes para antigenicidade e evoluÃÃo
Protozoan parasites belonging to the genus Leishmania are transmitted between mammalian hosts by bloodsucking sand flies and are the etiological agents of the four clinical forms of leishmaniasis: the fatal visceral form, mucocutaneous leishmanasis, cutaneous leishmaniasis and the rare diffuse cutaneous leishmaniasis. Visceral leishmaniases is common in less
Publicado em: 2005
-
6. Serological Evidence of Human Infection with the Protozoan Neospora caninum
Neospora caninum is a protozoan parasite that is closely related to Toxoplasma gondii. Dogs are a definitive host. Prior to its discovery in 1988, N. caninum infection in animals was often mistakenly diagnosed as toxoplasmosis. Neosporosis in animals is characterized by encephalitis, abortion, and other conditions that clinically and pathologically rese
American Society for Microbiology.
-
7. Identification and characterization of Neospora caninum tachyzoite antigens useful for diagnosis of neosporosis.
The purpose of the present study was to identify antigens of the protozoan Neospora caninum that could be useful for the diagnosis of neosporosis in domestic animals. As revealed by immunoblotting, immune sera from a wide range of animal species exhibited a similar recognition pattern of four major and several minor N. caninum antigens. In contrast to preino
-
8. Passive immunization of channel catfish (Ictalurus punctatus) against the ciliated protozoan parasite Ichthyophthirius multifiliis by use of murine monoclonal antibodies.
Fish acquire immunity against the ciliated protozoan parasite Ichthyophthirius multifiliis following sublethal infection. The immune response includes the elaboration of humoral antibodies against a class of abundant surface membrane proteins referred to as immobilization antigens (i-antigens). Antibodies against these proteins immobilize the parasite in vit
-
9. Protozoan predation, diversifying selection, and the evolution of antigenic diversity in Salmonella
Extensive population-level genetic variability at the Salmonella rfb locus, which encodes enzymes responsible for synthesis of the O-antigen polysaccharide, is thought to have arisen through frequency-dependent selection (FDS) by means of exposure of this pathogen to host immune systems. The FDS hypothesis works well for pathogens such as Haemophilus influen
National Academy of Sciences.
-
10. Restriction mapping of the genome of the protozoan parasite Theileria parva.
We have used a modified linking clone strategy and pulsed-field gel electrophoresis to derive a map of the 29 Sfi I and 4 Not I sites in the 10 million base pair genome of the protozoan parasite Theileria parva. This was achieved in the absence of classical genetic information. The map reveals four chromosomes. Several genes, including those for parasite ant
-
11. Conformationally Correct Expression of Membrane-Anchored Toxoplasma gondii SAG1 in the Primitive Protozoan Giardia duodenalis
To explore the possibility of expressing membrane-anchored exodomains of heterologous surface antigens in Giardia, a chimeric construct containing the Toxoplasma gondii SAG1 gene was made. The Giardia system is shown here to provide a means of generating correctly folded chimeric surface proteins in a native and unmodified form.
American Society for Microbiology.
-
12. Synthesis of small nuclear ribonucleoprotein particles by the malarial parasite Plasmodium falciparum.
Sera from patients with autoimmune diseases have been used to identify small nuclear ribonucleoprotein particles (snRNPs) present in higher eukaryotic cells and also in dinoflagellates. Previously these sera have not detected crossreactive snRNP protein antigens of other lower eukaryotes such as yeast, Tetrahymena, or Dictyostelium. We report that anti-Sm, a