Results 31 to 40 of about 48,698 (268)

Biomineralization of primary carbonate cements: a new biosignature in the fossil record from the Anisian of Southern Italy

open access: yesLethaia, EarlyView., 2021
Biomineralization is a generic term used to indicate biological‐mediated mineral formation. In carbonate mineralization, nucleation of crystals can be: (1) controlled directly by the organisms, like in the skeletal formation of most metazoans; (2) induced by microbial communities, by indirect precipitation mediated by their metabolic activities; or (3)
Adriano Guido   +4 more
wiley   +1 more source

Comparación de dos pruebas de aglutinación (Toxolatex ® y Toxoscreen ®) en el diagnóstico de la toxoplasmosis: propuesta de inclusión en un programa de control

open access: yesBiomédica: revista del Instituto Nacional de Salud, 2000
Este estudio evaluó las pruebas de aglutinación en Iátex. Toxolatex ®. Furnouze (.T L). .v aglutinación directa. Toxoscreen ®, Biomerieux (TS), mediante la comparación con las pruebas de referencia: prueba de neutralización, dye test (DT) e ...
Patrice Le Pape   +2 more
doaj   +1 more source

Seroprevalence of Toxoplasma gondii and Leishmania spp. in domestic donkeys from Portugal

open access: yesRevista Brasileira de Parasitologia Veterinária, 2019
Toxoplasma gondii and Leishmania infantum are zoonotic protozoal parasites. Serum samples were obtained from 186 donkeys (Equus africanus asinus) from Portugal and assessed for antibodies to T. gondii by the modified agglutination test (MAT).
Filipa Teixeira Rodrigues   +7 more
doaj   +1 more source

Improvement of a direct agglutination test for field studies of visceral leishmaniasis [PDF]

open access: yesJournal of Clinical Microbiology, 1988
To increase the potential for the wide-scale application of our direct agglutination test for visceral leishmaniasis, modifications in the components and procedures were introduced. Supplementation with 0.056 M citrate of the suspension medium stabilized the antigen for 9 weeks at 37 degrees C. To circumvent the need for cooling systems in the field, 0.
A, el Harith   +6 more
openaire   +2 more sources

Modified Direct Agglutination Test for Simplified Serologic Diagnosis of Leishmaniasis

open access: yesClinical and Vaccine Immunology, 2003
ABSTRACT Human leishmaniasis is a severe health problem in many countries around the world. Hence, a cheap, reliable, and accurate diagnostic test is required to fight this disease. Perhaps the direct agglutination test (DAT) meets these criteria, but antigen elaboration involves many difficulties. We have developed a new antigen
Gómez-Ochoa, Pablo   +7 more
openaire   +3 more sources

Field investigation of Trypanosoma evansi and comparative analysis of diagnostic tests in horses from Bahawalpur, Pakistan [PDF]

open access: yes, 2017
In order to assess the prevalence of Trypanosoma evansi, a parasitological, molecular, and serological-based investigation was carried out in randomly sampled horses (n = 375) belonging to different age groups, sexes, and localities from the district of ...
Desquesnes, Marc   +4 more
core   +1 more source

Domestic dog ownership in Iran is a risk factor for human infection with Leishmania infantum. [PDF]

open access: yes, 2002
One explanation proposed for the widespread failure to control zoonotic visceral leishmaniasis by culling infected domestic dogs is that wild canids or humans play significant roles in transmission.
Davies, Clive R   +4 more
core   +1 more source

Limited effectiveness of high-dose liposomal amphotericin B (AmBisome) for treatment of visceral leishmaniasis in an Ethiopian population with high HIV prevalence. [PDF]

open access: yes, 2011
Due to unacceptably high mortality with pentavalent antimonials, Médecins Sans Frontières in 2006 began using liposomal amphotericin B (AmBisome) for visceral leishmaniasis (VL) patients in Ethiopia who were severely ill or positive for human ...
Aderie, Endashaw Mengistu   +6 more
core   +2 more sources

Diagnosing visceral leishmaniasis and HIV/AIDS co-infection: a case series study in Pernambuco, Brazil

open access: yesRevista do Instituto de Medicina Tropical de São Paulo, 2012
HIV/AIDS-associated visceral leishmaniasis may display the characteristics of an aggressive disease or without specific symptoms at all, thus making diagnosis difficult.
Aracele Tenório de Almeida e Cavalcanti   +6 more
doaj   +1 more source

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