METHOD FOR DETECTING ANTIBODIES AGAINST LEISHMANIA IN A CANINE BIOLOGICAL SAMPLE, KIT FOR DETECTING INFECTION WITH LEISHMANIA IN A BIOLOGICAL SAMPLE, AND USE OF LIPOPHOSPHOGLYCAN OF LEISHMANIA

Visceral leishmaniasis is one of the most neglected diseases in the world and attacks humans and other mammals. Dogs are the main domestic link of visceral leishmaniasis as they are considered to be the main source of infection for vectors. Sick animals with or without clinical manifestation (asympt...

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Hauptverfasser: PORTELA, Ricardo Wagner Dias, PASSOS, Gabriela Porfírio, SOARES, Rodrigo Pedro Pinto, MELO, Stella Maria Barrouin, BARRAL, Thiago Assis Doria
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BARRAL, Thiago Assis Doria
description Visceral leishmaniasis is one of the most neglected diseases in the world and attacks humans and other mammals. Dogs are the main domestic link of visceral leishmaniasis as they are considered to be the main source of infection for vectors. Sick animals with or without clinical manifestation (asymptomatic) need to be correctly diagnosed. The invention provides methods and kits for detecting canine visceral leishmaniasis with a high level of sensitivity and specificity, including in seemingly healthy animals that do not present any clinical manifestations, using isolated lipophosphogylcans of L. infantum. The method according to the invention has a sensitivity of 91.7%, a specificity of 98.5%, and an accuracy of 99.7%, and can adequately discriminate between serums of dogs that are sick and infected and those that are infested with parasites and clinically healthy, and with a low rate of cross-reactivity during testing of samples of dogs infected with other infectious agents. La leishmaniose viscérale est l'une des maladies les plus négligées dans le monde et touche les êtres humains et d'autres mammifères. Les chiens constituent le principal lien domestique de la leishmaniose viscérale, et sont considérés comme la principale source d'infection pour les vecteurs. Il est nécessaire de diagnostiquer correctement les animaux malades avec et sans manifestations cliniques (asymptomatiques). L'invention concerne des procédés et des kits pour détecter la leishmaniose viscérale canine avec une sensibilité et une spécificité élevées, y compris chez des animaux apparemment sains et sans manifestations cliniques, au moyen de lipophosphoglycanes isolés de L. infantum. Le procédé mis au point présente une sensibilité de 91,7%, une spécificité de 98,5%, une précision de 99,7%, avec une capacité de discriminer de façon appropriée les sérums de chiens infectés malades de ceux parasités et cliniquement sains, et avec un faible taux de réactivité croisée lors du test d'échantillons provenant de chiens infectés par d'autres agents infectieux. Leishmaniose visceral é uma das doenças mais negligenciadas no mundo e acomete humanos e outros mamíferos. Os cães constituem o principal elo doméstico da leishmaniose visceral, sendo considerado a principal fonte de infecção para vetores. Há necessidade de diagnosticar corretamente os animais doentes com e sem manifestação clínica (assintomáticos). São providos métodos e kits para detectar leishmaniose visceral canina com alta sensibili
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Dogs are the main domestic link of visceral leishmaniasis as they are considered to be the main source of infection for vectors. Sick animals with or without clinical manifestation (asymptomatic) need to be correctly diagnosed. The invention provides methods and kits for detecting canine visceral leishmaniasis with a high level of sensitivity and specificity, including in seemingly healthy animals that do not present any clinical manifestations, using isolated lipophosphogylcans of L. infantum. The method according to the invention has a sensitivity of 91.7%, a specificity of 98.5%, and an accuracy of 99.7%, and can adequately discriminate between serums of dogs that are sick and infected and those that are infested with parasites and clinically healthy, and with a low rate of cross-reactivity during testing of samples of dogs infected with other infectious agents. La leishmaniose viscérale est l'une des maladies les plus négligées dans le monde et touche les êtres humains et d'autres mammifères. Les chiens constituent le principal lien domestique de la leishmaniose viscérale, et sont considérés comme la principale source d'infection pour les vecteurs. Il est nécessaire de diagnostiquer correctement les animaux malades avec et sans manifestations cliniques (asymptomatiques). L'invention concerne des procédés et des kits pour détecter la leishmaniose viscérale canine avec une sensibilité et une spécificité élevées, y compris chez des animaux apparemment sains et sans manifestations cliniques, au moyen de lipophosphoglycanes isolés de L. infantum. Le procédé mis au point présente une sensibilité de 91,7%, une spécificité de 98,5%, une précision de 99,7%, avec une capacité de discriminer de façon appropriée les sérums de chiens infectés malades de ceux parasités et cliniquement sains, et avec un faible taux de réactivité croisée lors du test d'échantillons provenant de chiens infectés par d'autres agents infectieux. Leishmaniose visceral é uma das doenças mais negligenciadas no mundo e acomete humanos e outros mamíferos. Os cães constituem o principal elo doméstico da leishmaniose visceral, sendo considerado a principal fonte de infecção para vetores. Há necessidade de diagnosticar corretamente os animais doentes com e sem manifestação clínica (assintomáticos). São providos métodos e kits para detectar leishmaniose visceral canina com alta sensibilidade e especificidade, inclusive em animais aparentemente sadios e sem manifestações clínicas, usando lipofosfoglicanos isolados de L. infantum. O método desenvolvido apresenta sensibilidade de 91,7%, especificidade de 98,5%, acurácia de 99,7%, com capacidade de discriminar adequadamente soros de cães infectados doentes daqueles parasitados e clinicamente saudáveis, e com baixo índice de reatividade cruzada quando foram testadas amostras de cães infectados com outros agentes infecciosos.</description><language>eng ; fre ; por</language><subject>HUMAN NECESSITIES ; HYGIENE ; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES ; MEASURING ; MEDICAL OR VETERINARY SCIENCE ; PHYSICS ; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES ; TESTING</subject><creationdate>2020</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20200305&amp;DB=EPODOC&amp;CC=WO&amp;NR=2020041849A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25569,76552</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20200305&amp;DB=EPODOC&amp;CC=WO&amp;NR=2020041849A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>PORTELA, Ricardo Wagner Dias</creatorcontrib><creatorcontrib>PASSOS, Gabriela Porfírio</creatorcontrib><creatorcontrib>SOARES, Rodrigo Pedro Pinto</creatorcontrib><creatorcontrib>MELO, Stella Maria Barrouin</creatorcontrib><creatorcontrib>BARRAL, Thiago Assis Doria</creatorcontrib><title>METHOD FOR DETECTING ANTIBODIES AGAINST LEISHMANIA IN A CANINE BIOLOGICAL SAMPLE, KIT FOR DETECTING INFECTION WITH LEISHMANIA IN A BIOLOGICAL SAMPLE, AND USE OF LIPOPHOSPHOGLYCAN OF LEISHMANIA</title><description>Visceral leishmaniasis is one of the most neglected diseases in the world and attacks humans and other mammals. Dogs are the main domestic link of visceral leishmaniasis as they are considered to be the main source of infection for vectors. Sick animals with or without clinical manifestation (asymptomatic) need to be correctly diagnosed. The invention provides methods and kits for detecting canine visceral leishmaniasis with a high level of sensitivity and specificity, including in seemingly healthy animals that do not present any clinical manifestations, using isolated lipophosphogylcans of L. infantum. The method according to the invention has a sensitivity of 91.7%, a specificity of 98.5%, and an accuracy of 99.7%, and can adequately discriminate between serums of dogs that are sick and infected and those that are infested with parasites and clinically healthy, and with a low rate of cross-reactivity during testing of samples of dogs infected with other infectious agents. La leishmaniose viscérale est l'une des maladies les plus négligées dans le monde et touche les êtres humains et d'autres mammifères. Les chiens constituent le principal lien domestique de la leishmaniose viscérale, et sont considérés comme la principale source d'infection pour les vecteurs. Il est nécessaire de diagnostiquer correctement les animaux malades avec et sans manifestations cliniques (asymptomatiques). L'invention concerne des procédés et des kits pour détecter la leishmaniose viscérale canine avec une sensibilité et une spécificité élevées, y compris chez des animaux apparemment sains et sans manifestations cliniques, au moyen de lipophosphoglycanes isolés de L. infantum. Le procédé mis au point présente une sensibilité de 91,7%, une spécificité de 98,5%, une précision de 99,7%, avec une capacité de discriminer de façon appropriée les sérums de chiens infectés malades de ceux parasités et cliniquement sains, et avec un faible taux de réactivité croisée lors du test d'échantillons provenant de chiens infectés par d'autres agents infectieux. Leishmaniose visceral é uma das doenças mais negligenciadas no mundo e acomete humanos e outros mamíferos. Os cães constituem o principal elo doméstico da leishmaniose visceral, sendo considerado a principal fonte de infecção para vetores. Há necessidade de diagnosticar corretamente os animais doentes com e sem manifestação clínica (assintomáticos). São providos métodos e kits para detectar leishmaniose visceral canina com alta sensibilidade e especificidade, inclusive em animais aparentemente sadios e sem manifestações clínicas, usando lipofosfoglicanos isolados de L. infantum. 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Dogs are the main domestic link of visceral leishmaniasis as they are considered to be the main source of infection for vectors. Sick animals with or without clinical manifestation (asymptomatic) need to be correctly diagnosed. The invention provides methods and kits for detecting canine visceral leishmaniasis with a high level of sensitivity and specificity, including in seemingly healthy animals that do not present any clinical manifestations, using isolated lipophosphogylcans of L. infantum. The method according to the invention has a sensitivity of 91.7%, a specificity of 98.5%, and an accuracy of 99.7%, and can adequately discriminate between serums of dogs that are sick and infected and those that are infested with parasites and clinically healthy, and with a low rate of cross-reactivity during testing of samples of dogs infected with other infectious agents. La leishmaniose viscérale est l'une des maladies les plus négligées dans le monde et touche les êtres humains et d'autres mammifères. Les chiens constituent le principal lien domestique de la leishmaniose viscérale, et sont considérés comme la principale source d'infection pour les vecteurs. Il est nécessaire de diagnostiquer correctement les animaux malades avec et sans manifestations cliniques (asymptomatiques). L'invention concerne des procédés et des kits pour détecter la leishmaniose viscérale canine avec une sensibilité et une spécificité élevées, y compris chez des animaux apparemment sains et sans manifestations cliniques, au moyen de lipophosphoglycanes isolés de L. infantum. Le procédé mis au point présente une sensibilité de 91,7%, une spécificité de 98,5%, une précision de 99,7%, avec une capacité de discriminer de façon appropriée les sérums de chiens infectés malades de ceux parasités et cliniquement sains, et avec un faible taux de réactivité croisée lors du test d'échantillons provenant de chiens infectés par d'autres agents infectieux. Leishmaniose visceral é uma das doenças mais negligenciadas no mundo e acomete humanos e outros mamíferos. Os cães constituem o principal elo doméstico da leishmaniose visceral, sendo considerado a principal fonte de infecção para vetores. Há necessidade de diagnosticar corretamente os animais doentes com e sem manifestação clínica (assintomáticos). São providos métodos e kits para detectar leishmaniose visceral canina com alta sensibilidade e especificidade, inclusive em animais aparentemente sadios e sem manifestações clínicas, usando lipofosfoglicanos isolados de L. infantum. O método desenvolvido apresenta sensibilidade de 91,7%, especificidade de 98,5%, acurácia de 99,7%, com capacidade de discriminar adequadamente soros de cães infectados doentes daqueles parasitados e clinicamente saudáveis, e com baixo índice de reatividade cruzada quando foram testadas amostras de cães infectados com outros agentes infecciosos.</abstract><oa>free_for_read</oa></addata></record>
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subjects HUMAN NECESSITIES
HYGIENE
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
MEDICAL OR VETERINARY SCIENCE
PHYSICS
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
TESTING
title METHOD FOR DETECTING ANTIBODIES AGAINST LEISHMANIA IN A CANINE BIOLOGICAL SAMPLE, KIT FOR DETECTING INFECTION WITH LEISHMANIA IN A BIOLOGICAL SAMPLE, AND USE OF LIPOPHOSPHOGLYCAN OF LEISHMANIA
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