Publications by authors named "Carina Elisei"

9 Publications

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Integrative taxonomy of Sprentascaris mahnerti and phylogeny of raphidascaridid nematodes (Nematoda: Ascaridoidea: Raphidascarididae) suggest the monophyly of Sprentascaris.

Parasitol Int 2020 Feb 27;74:101978. Epub 2019 Aug 27.

Programa de Pós-Graduação em Biologia Animal, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Av. Costa e Silva s/n, Campo Grande, MS CEP 79070-900, Brazil. Electronic address:

Sprentascaris mahnerti (Nematoda: Raphidascarididae) collected from Loricariichthys labialis (Siluriformes: Loricariidae) in the Pantanal wetlands, State of Mato Grosso do Sul (Brazil), was redescribed using light and scanning electron microscopy (SEM), and genetically characterised along with two other raphidascaridids: Raphidascaroides brasiliensis and Ro. moraveci. Due to the systematic discussion regarding Raphidascaris and Sprentascaris, as well as the poor knowledge about the phylogenetic relationships within Raphidascarididae, phylogenies were reconstructed based on partial sequences of the 18S and 28S nuclear rRNA gene, the nuclear ITS1-5.8S-ITS2 and the cytochrome c oxidase subunit I (cox1) mtDNA. Morphological study of S. mahnerti, confirmed some previously described features, revealed new characteristics and permitted to elucidate some inconsistencies noted in the literature. Morphological and genetic characterisation of S. mahnerti supported its validity. Phylogenetic reconstructions supported the monophyly of Sprentascaris, which has three pairs of interlabial conspicuous cuticular projections as a synapomorphy. The relationships among several lineages of raphidascaridids were unsolved, albeit Goezia and Ichthyascaris formed well-supported monophyletic assemblages, in which the first included species with no relations regarding the habitat of hosts and the geographic origin. The present findings represent one more step towards the understanding of the interrelationships of raphidascaridid nematodes. In this sense, Sprentascaris should be considered valid as an independent lineage from Raphidascaris.
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http://dx.doi.org/10.1016/j.parint.2019.101978DOI Listing
February 2020

First description of the male of Philometroides acreanensis and phylogenetic assessment of Philometridae (Nematoda: Dracunculoidea) suggest instability of some taxa.

Parasitol Int 2019 Apr 31;69:30-38. Epub 2018 Oct 31.

Programa de Pós-Graduação em Biologia Animal, Instituto de Biociências (INBIO), Universidade Federal de Mato Grosso do Sul (UFMS), Av. Costa e Silva s/n°, CEP 79070-900 Campo Grande, MS, Brazil. Electronic address:

The male of Philometroides acreanensis, parasitic in the anterior intestine external wall of the freshwater catfish Pimelodus blochii, from the Brazilian Amazon, is described for the first time. Additional data on the morphology of females is given. The new morphological data strengthened the validity of the species as well as its first genetic characterization, using three nuclear genetic markers (18S and 28S of the rDNA and ITS1-58S-ITS2), confirmed the high genetic resemblance of male and female specimens. Philometroides acreanensis shows morphological features of the generic diagnosis of Neophilometroides, Alinema, Philometra and Philometroides. Phylogenetic analyses using sequences of the18S rDNA from representatives of Dracunculoidea confirmed the validity of P. acreanensis and its close relatedness with Alinema rather than with other genera. The validity of Philonemidae was confirmed, as was the monophyly of Philometridae and Clavinema. However, Dentiphilometra, Philometra and Philometroides appear not to be monophyletic. Host taxa, habitat and geographic occurrence seem to have some relationship with the evolutionary traits of certain phylogenetic assemblages of philometrids, which were highly supported in the phylogentic reconstructions. Even though interesting aspects of the phylogeny and taxonomy of Philometridae came to light, further integrative approaches should be used that include additional genetic markers, due to the loose boundaries between some genera as observed here.
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http://dx.doi.org/10.1016/j.parint.2018.10.010DOI Listing
April 2019

Insight into role of microbiota-gut-brain peptides as a target for biotechnology innovations.

Front Biosci (Elite Ed) 2017 01 1;9:76-88. Epub 2017 Jan 1.

Universidade Catolica Dom Bosco - UCDB, Post Graduate Program in Biotechnology, CEP: 79117-900 Campo Grande, MS, Brazil,

It has long been understood that some microorganisms may modify their hosts behavior in various systems. Nevertheless, it has only been in recent years that gut microbiota have opened new perspectives to appreciate their potential for affect complex neurological function in mammals. Efforts have demonstrated the ability of these gut-microbiota to impact neurological outcomes, suggested a prominent role for the gut microbiota in the gut-brain interactions, indicating that alterations in bidirectional microbiota-brain-gut may be involved in a number of brain disorders. Further, the identification of bioactive microbial signals, including their immune mediators, gut hormones and/or peptides, during health and disease situations, can serve as a tool for discovering novel activities that influence behavior and neurological function in hosts. Current review aims to provide an overview and shed some light on fundamental characteristics of the gut microbiota in modulating neurological disorders and consequently to draw up alternative strategies for using the gut microbiota or their active molecules as a therapeutic target for future diagnoses.
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http://dx.doi.org/10.2741/e787DOI Listing
January 2017

Polymorphisms of intron 1 and the promoter region at the PRNP gene in BSE-free Caracu cattle.

Biochem Genet 2012 Oct 13;50(9-10):657-69. Epub 2012 May 13.

Universidade Federal de Mato Grosso do Sul, Programa de Pós-Graduação Mestrado em Ciência Animal, Campo Grande, MS, Brazil.

The infectious prion protein PrP(Sc) is encoded by the PRNP gene. In cattle, insertion/deletion (indel) polymorphisms are among the changes that occur in this gene, the most studied of which are within intron 1 (12 bp) and the promoter region (23 bp). Sequence variants in this gene may affect the formation of PrP(Sc). In the present study, nucleotide variability in specific regions of the PRNP gene in Caracu cattle free of bovine spongiform encephalopathy was investigated to determine the genotypic profile of each animal within the group. Caracu cattle exhibited high allele frequency for the two polymorphic regions studied, 12ins (70 %) and 23ins (72.5 %), genotype frequencies of 50 % for 12ins/ins and 50 % for 23ins/del, and a high frequency of the 12ins-23ins haplotype (57.5 %). Of the 40 animals sampled, 15 had the 12ins-23ins/12ins-23ins diplotype.
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http://dx.doi.org/10.1007/s10528-012-9508-2DOI Listing
October 2012

Molecular and antigenic characterisation of ribosomal phosphoprotein P0 from Babesia bovis.

Mem Inst Oswaldo Cruz 2009 Nov;104(7):998-1002

Departamento de Medicina Veterinária, Universidade Federal Rural de Pernambuco, Recife, PE, Brasil.

Babesia bovis is a tick-borne pathogen that remains an important constraint for the development of cattle industries in tropical and subtropical regions of the world. Effective control can be achieved by vaccination with live attenuated phenotypes of the parasite. However, these phenotypes have a number of drawbacks, which justifies the search for new, more efficient immunogens based mainly on recombinant protein technology. In the present paper, ribosomal phosphoprotein P0 from a Brazilian isolate of B. bovis was produced and evaluated with regard to conservation and antigenicity. The protein sequence displayed high conservation between different Brazilian isolates of B. bovis and several Apicomplexa parasites such as Theileria, Neospora and Toxoplasma. IgG from cattle experimentally and naturally infected with B. bovisas well as IgG1 and IgG2 from naturally infected cattle reacted with the recombinant protein. IgG from cattle experimentally infected with Babesia bigemina cross-reacted with B. bovis recombinant P0. These characteristics suggest that P0 is a potential antigen for recombinant vaccine preparations against bovine babesiosis.
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http://dx.doi.org/10.1590/s0074-02762009000700010DOI Listing
November 2009

[Detection of antibodies against Anaplasma sp. in small ruminants from the semi-arid region against Pernambuco State, Brazil].

Rev Bras Parasitol Vet 2008 Apr-Jun;17(2):115-7

Embrapa Gado de Corte, Campo Grande, MS 79002-970, Brasil.

This paper reports the detection of antibodies against Anaplasma sp. in goats and sheep from the semi-arid region from Pernambuco State, Brazil, using an enzyme-linked immunosorbent assay with recombinant MSP5 of Anaplasma marginale. Sera from 243 goats and 68 sheep from Ibimirim municipality were analyzed and frequencies of antibodies of 11.93% (29/243) and 16.17% (11/68) were found for goats and sheep, respectively. The epidemiological relevance of the findings was discussed.
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http://dx.doi.org/10.1590/s1984-29612008000200011DOI Listing
January 2009

IgG and IgG2 antibodies from cattle naturally infected with Anaplasma marginale recognize the recombinant vaccine candidate antigens VirB9, VirB10, and elongation factor-Tu.

Mem Inst Oswaldo Cruz 2008 Mar;103(2):186-90

Embrapa Gado de Corte, Campo Grande, MS, Brasil.

Anaplasma marginale is an important vector-borne rickettsia of ruminants in tropical and subtropical regions of the world. Immunization with purified outer membranes of this organism induces protection against acute anaplasmosis. Previous studies, with proteomic and genomic approach identified 21 proteins within the outer membrane immunogen in addition to previously characterized major surface protein1a-5 (MSP1a-5). Among the newly described proteins were VirB9, VirB10, and elongation factor-Tu (EF-Tu). VirB9, VirB10 are considered part of the type IV secretion system (TFSS), which mediates secretion or cell-to-cell transfer of macromolecules, proteins, or DNA-protein complexes in Gram-negative bacteria. EF-Tu can be located in the bacterial surface, mediating bacterial attachment to host cells, or in the bacterial cytoplasm for protein synthesis. However, the roles of VirB9, VirB10, and TFSS in A. marginale have not been defined. VirB9, VirB10, and EF-Tu have not been explored as vaccine antigens. In this study, we demonstrate that sera of cattle infected with A. marginale, with homologous or heterologous isolates recognize recombinant VirB9, VirB10, and EF-Tu. IgG2 from naturally infected cattle also reacts with these proteins. Recognition of epitopes by total IgG and by IgG2 from infected cattle with A. marginale support the inclusion of these proteins in recombinant vaccines against this rickettsia.
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http://dx.doi.org/10.1590/s0074-02762008000200010DOI Listing
March 2008

[Transcription of genes of membrane proteins of Brazilians isolates of Anaplasma marginale].

Rev Bras Parasitol Vet 2007 Jul-Sep;16(3):152-5

Programa de Pós-Graduação em Ciência Animal, Universidade Federalde Mato Grosso do Sul, Cidade Universitária, Caixa Postal 549, CampoGrande, MS 79070-900.

This work shows the transcription profile of membrane protein genes in three Brazilian isolates of Anaplasma marginale (Rio Grande do Norte, Pernambuco-Zona da Mata, and Pernambuco-Sertão). RNA was purified from cattle blood experimentally-infected with the three isolates of A. marginale. After reverse transcription, genes omp1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 12, 13, and 14; opag1-3; virB3, 9, and 10; am097, 197, 254, 854, and 956 were amplified by PCR, with specific primers. Transcripts were detected for all genes, except omp2, 3 e opag3 in all isolates and for omp7 in one out of the three isolates analyzed. Absence of transcription for opag3 and omp7 diverge from the North American isolates of A. marginale. Reasons for such differences were discussed.
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http://dx.doi.org/10.1590/s1984-29612007000300007DOI Listing
April 2008

Morphology and morphometry of three Plasmodium juxtanucleare (Apicomplexa: Plasmodiidae) isolates.

Rev Bras Parasitol Vet 2007 Jul-Sep;16(3):139-44

Laboratório de Biologia Molecular Sanidade Animal, Embrapa Gado de Corte, Campo Grande, MS, 79002-000, Brasil.

In this work, three isolates of Plasmodium juxtanucleare have been analyzed based on morphological, morphometric and parasitic parameters. Each isolate was sampled from naturally infected adult chicken (Gallus gallus) from rural areas of three Brazilian municipalities: Seropédica (22 degrees 48' S; 43 degrees 41' W), in the state of Rio de Janeiro; Cruzeiro (22 degrees 33' S; 44 degrees 57' W), in the state of São Paulo; and Santa Bárbara do Tugúrio (21 degrees 15' S; 43 degrees 27' W), in the state of Minas Gerais. The blood samples taken from each infected chicken were inoculated in three groups of ten young chicken (21 days old). Blood smears of the experimentally infected chicken were sampled every two days until the 69th day in order to evaluate the parasitemia. For the morphological-descriptive and morphometric analyses, we measured 30 individuals from each of the intraerythocytic states, measures of the major (MD) and minor diameters (md), the estimation of morphometric index (Mi=md/MD) and size (T=pab, a=md/2; b=MD/2). The results indicated low and homogeneous parasitemia rates in the three strains, which showed differences among shape and size of the parasitic stadia displayed.
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http://dx.doi.org/10.1590/s1984-29612007000300005DOI Listing
April 2008
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