LIVIVO - Das Suchportal für Lebenswissenschaften

switch to English language
Erweiterte Suche

Suchergebnis

Treffer 1 - 4 von insgesamt 4

Suchoptionen

  1. Artikel ; Online: Chiropterans as a potential hosts of Leishmania spp. in endemic areas for leishmaniasis in northeastern Brazil.

    Ramos, Luis Gustavo Siqueira Matias / Costa, Valéria Almeida / Louzeiro, Nayara Mendes / Carvalho, Clauberth César Alves / de Maria Seabra Nogueira, Rita / Speranca, Marcia Aparecida / Cabral, Aline Diniz / Costa, Francisco Borges / Barros, Maria Claudene / da Costa Fraga, Elmary / Marcili, Arlei / da Costa, Andréa Pereira

    Zoonoses and public health

    2022  Band 69, Heft 8, Seite(n) 987–992

    Abstract: The species of the genus Leishmania are protozoa that are widely distributed from Asia to the Americas, affecting humans and wild and domestic animals. Little is known about infection by Leishmania in bats in the state of Maranhão, Brazil. The objective ... ...

    Abstract The species of the genus Leishmania are protozoa that are widely distributed from Asia to the Americas, affecting humans and wild and domestic animals. Little is known about infection by Leishmania in bats in the state of Maranhão, Brazil. The objective of this study was to investigate the presence of Leishmania in bats in Maranhão. Blood samples were collected from bat species for parasitological diagnosis. Samples of spleen and liver were collected for molecular analysis. All the blood cultures were negative. In two blood smears, organisms similar to amastigotes of Leishmania sp. were detected. Of the 116 samples, two spleen samples were positive and showed similarity to Leishmania infantum. Therefore, further studies are needed to elucidate whether bats take part in the epidemiological chain of leishmaniasis.
    Mesh-Begriff(e) Humans ; Animals ; Leishmaniasis, Visceral/epidemiology ; Leishmaniasis, Visceral/veterinary ; Leishmaniasis, Visceral/parasitology ; Chiroptera ; Brazil/epidemiology ; Leishmaniasis/epidemiology ; Leishmaniasis/veterinary ; Leishmania infantum
    Sprache Englisch
    Erscheinungsdatum 2022-08-26
    Erscheinungsland Germany
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2271118-1
    ISSN 1863-2378 ; 1863-1959
    ISSN (online) 1863-2378
    ISSN 1863-1959
    DOI 10.1111/zph.12997
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Volltext online

    Zusatzmaterialien

    Kategorien

    Über subito bestellen

    Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.

  2. Artikel ; Online: Chiropterans as a potential hosts of Leishmania spp. in endemic areas for leishmaniasis in northeastern Brazil

    Ramos, Luis Gustavo Siqueira Matias / Costa, Valéria Almeida / Louzeiro, Nayara Mendes / Carvalho, Clauberth César Alves / de Maria Seabra Nogueira, Rita / Speranca, Marcia Aparecida / Cabral, Aline Diniz / Costa, Francisco Borges / Barros, Maria Claudene / da Costa Fraga, Elmary / Marcili, Arlei / da Costa, Andréa Pereira

    Zoonoses and Public Health. 2022 Dec., v. 69, no. 8 p.987-992

    2022  

    Abstract: The species of the genus Leishmania are protozoa that are widely distributed from Asia to the Americas, affecting humans and wild and domestic animals. Little is known about infection by Leishmania in bats in the state of Maranhão, Brazil. The objective ... ...

    Abstract The species of the genus Leishmania are protozoa that are widely distributed from Asia to the Americas, affecting humans and wild and domestic animals. Little is known about infection by Leishmania in bats in the state of Maranhão, Brazil. The objective of this study was to investigate the presence of Leishmania in bats in Maranhão. Blood samples were collected from bat species for parasitological diagnosis. Samples of spleen and liver were collected for molecular analysis. All the blood cultures were negative. In two blood smears, organisms similar to amastigotes of Leishmania sp. were detected. Of the 116 samples, two spleen samples were positive and showed similarity to Leishmania infantum. Therefore, further studies are needed to elucidate whether bats take part in the epidemiological chain of leishmaniasis.
    Schlagwörter Chiroptera ; Leishmania infantum ; amastigotes ; blood ; leishmaniasis ; liver ; public health ; spleen ; zoonoses ; Asia ; Brazil
    Sprache Englisch
    Erscheinungsverlauf 2022-12
    Umfang p. 987-992.
    Erscheinungsort John Wiley & Sons, Ltd
    Dokumenttyp Artikel ; Online
    Anmerkung JOURNAL ARTICLE
    ZDB-ID 2271118-1
    ISSN 1863-2378 ; 1863-1959
    ISSN (online) 1863-2378
    ISSN 1863-1959
    DOI 10.1111/zph.12997
    Datenquelle NAL Katalog (AGRICOLA)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Über subito bestellen

    Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.

  3. Artikel ; Online: Diagnosis and epidemiology of Leishmania infantum in domestic cats in an endemic area of the Amazon region, Brazil.

    Rocha, Ana Vitória Verde Oliveira / Moreno, Brenda Fernanda Sodré / Cabral, Aline Diniz / Louzeiro, Nayara Mendes / Miranda, Leandro Macedo / Santos, Vivian Magalhães Brandão Dos / Costa, Francisco Borges / Nogueira, Rita de Maria Seabra / Marcili, Arlei / Sperança, Márcia Aparecida / Costa, Andréa Pereira da

    Veterinary parasitology

    2019  Band 273, Seite(n) 80–85

    Abstract: Visceral leishmaniasis is a zoonotic disease caused by Leishmania infantum for which dogs are the main reservoir. In South America, presence of this disease is expanding along with increasing dispersion of its principal vector, the sand-fly Lutzomyia ... ...

    Abstract Visceral leishmaniasis is a zoonotic disease caused by Leishmania infantum for which dogs are the main reservoir. In South America, presence of this disease is expanding along with increasing dispersion of its principal vector, the sand-fly Lutzomyia longipalpis. Feline leishmaniasis is an emerging disease in domestic cats, but epidemiological studies in endemic areas of the Amazon region of Brazil are scarce and the role of cats as reservoirs of L. infantum has been debated. The aim of this study was to investigate L. infantum infection in cats living in the Amazon biome region, using serological and molecular methods. A total of 105 cats were subjected to clinical examination and blood samples were taken for immunofluorescent-antibody (IFAT) serological evaluation, to determine anti-Leishmania antibody titers. Conventional PCR and Sanger's sequencing targeting L. infantum chitinase and Leishmania species ribosomal internal transcribed spacer (ITS-1) encoding genes were performed on conjunctival swabs from these cats. Seropositivity was detected in 32 animals (30.48%), thus confirming that contact between these cats and the parasite was occurring. PCR followed by amplicon sequencing showed that three samples (2.86%) were positive for a chitinase gene and six (5.71%) were positive for the ITS-1 gene. Parasite-positive diagnoses presented a statistically significant association with free access to the streets (p = 0.0111), cohabitation with dogs affected previously by VL (p = 0.0006) and absence of backyard cleaning and garbage collection (p = 0.00003). These results emphasize that cats should be included in epidemiological surveys of leishmaniasis, especially in endemic areas, if not as the reservoir host (unproven), at least as a "sentinel host" that is useful for revealing situations of endemic circulation of L. infantum. Moreover, in these areas, feline leishmaniasis needs to be considered in the differential diagnosis among domestic cats presenting alopecia, rarefied hair, lacerations and ulcerative dermatitis.
    Mesh-Begriff(e) Animals ; Antibodies, Protozoan/blood ; Brazil/epidemiology ; Cat Diseases/diagnosis ; Cat Diseases/epidemiology ; Cat Diseases/parasitology ; Cats ; DNA, Ribosomal Spacer/genetics ; Dogs ; Fluorescent Antibody Technique, Indirect/veterinary ; Leishmania infantum ; Leishmaniasis, Visceral/diagnosis ; Leishmaniasis, Visceral/epidemiology ; Leishmaniasis, Visceral/veterinary ; Polymerase Chain Reaction ; Prevalence ; Risk Factors
    Chemische Substanzen Antibodies, Protozoan ; DNA, Ribosomal Spacer
    Sprache Englisch
    Erscheinungsdatum 2019-08-15
    Erscheinungsland Netherlands
    Dokumenttyp Journal Article
    ZDB-ID 196831-2
    ISSN 1873-2550 ; 0304-4017
    ISSN (online) 1873-2550
    ISSN 0304-4017
    DOI 10.1016/j.vetpar.2019.08.007
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Volltext online

    Zusatzmaterialien

    Kategorien

    Verfügbar in ZB MED Köln/Königswinter

    Zs.A 4380: Hefte anzeigen Standort:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

    Über subito bestellen

    Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.

  4. Artikel: Diagnosis and epidemiology of Leishmania infantum in domestic cats in an endemic area of the Amazon region, Brazil

    Rocha, Ana Vitória Verde Oliveira / Moreno, Brenda Fernanda Sodré / Cabral, Aline Diniz / Louzeiro, Nayara Mendes / Miranda, Leandro Macedo / Santos, Vivian Magalhães Brandão dos / Costa, Francisco Borges / Nogueira, Rita de Maria Seabra / Marcili, Arlei / Sperança, Márcia Aparecida / Costa, Andréa Pereira da

    Veterinary parasitology. 2019 Sept., v. 273

    2019  

    Abstract: Visceral leishmaniasis is a zoonotic disease caused by Leishmania infantum for which dogs are the main reservoir. In South America, presence of this disease is expanding along with increasing dispersion of its principal vector, the sand-fly Lutzomyia ... ...

    Abstract Visceral leishmaniasis is a zoonotic disease caused by Leishmania infantum for which dogs are the main reservoir. In South America, presence of this disease is expanding along with increasing dispersion of its principal vector, the sand-fly Lutzomyia longipalpis. Feline leishmaniasis is an emerging disease in domestic cats, but epidemiological studies in endemic areas of the Amazon region of Brazil are scarce and the role of cats as reservoirs of L. infantum has been debated. The aim of this study was to investigate L. infantum infection in cats living in the Amazon biome region, using serological and molecular methods. A total of 105 cats were subjected to clinical examination and blood samples were taken for immunofluorescent-antibody (IFAT) serological evaluation, to determine anti-Leishmania antibody titers. Conventional PCR and Sanger’s sequencing targeting L. infantum chitinase and Leishmania species ribosomal internal transcribed spacer (ITS-1) encoding genes were performed on conjunctival swabs from these cats. Seropositivity was detected in 32 animals (30.48%), thus confirming that contact between these cats and the parasite was occurring. PCR followed by amplicon sequencing showed that three samples (2.86%) were positive for a chitinase gene and six (5.71%) were positive for the ITS-1 gene. Parasite-positive diagnoses presented a statistically significant association with free access to the streets (p = 0.0111), cohabitation with dogs affected previously by VL (p = 0.0006) and absence of backyard cleaning and garbage collection (p = 0.00003). These results emphasize that cats should be included in epidemiological surveys of leishmaniasis, especially in endemic areas, if not as the reservoir host (unproven), at least as a "sentinel host" that is useful for revealing situations of endemic circulation of L. infantum. Moreover, in these areas, feline leishmaniasis needs to be considered in the differential diagnosis among domestic cats presenting alopecia, rarefied hair, lacerations and ulcerative dermatitis.
    Schlagwörter Leishmania infantum ; Lutzomyia longipalpis ; alopecia ; antibodies ; blood sampling ; cat diseases ; cats ; chitinase ; cleaning ; clinical examination ; dermatitis ; dogs ; ecosystems ; emerging diseases ; epidemiological studies ; genes ; internal transcribed spacers ; lacerations ; municipal solid waste ; parasites ; polymerase chain reaction ; seroprevalence ; visceral leishmaniasis ; zoonoses ; Amazonia ; Brazil
    Sprache Englisch
    Erscheinungsverlauf 2019-09
    Umfang p. 80-85.
    Erscheinungsort Elsevier B.V.
    Dokumenttyp Artikel
    ZDB-ID 196831-2
    ISSN 1873-2550 ; 0304-4017
    ISSN (online) 1873-2550
    ISSN 0304-4017
    DOI 10.1016/j.vetpar.2019.08.007
    Datenquelle NAL Katalog (AGRICOLA)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Verfügbar in ZB MED Köln/Königswinter

    Zs.A 4380: Hefte anzeigen Standort:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

    Über subito bestellen

    Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.

Zum Seitenanfang