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Elaboración y prueba de potencia de sensitinas correspondientes a Mycobacterium phlei y Mycobacterium fortuitum aisladas de suelos pampeanos en la República Argentina.
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- Alternate Title:
Production and potency of PPDsMycobacterium phlei and Mycobacterium fortuitum isolated soils from La Pampa-Argentina.
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- Abstract:
En países que han logrado erradicar la tuberculosis bovina, se ha comprobado que ciertas MNT interfieren en el diagnóstico de la tuberculosis, cuando se aplica la intradermorreacción con el derivado proteico purificado de Mycobacterium bovis (PPD). Además se ha establecido que algunas especies de MNT pueden invadir y replicar en el interior de parásitos tales como Acanthamoeba y Dictyostelium discoideum pudiendo actuar estos protozoarios como reservorios de MNT en los mamíferos parasitados. Existen MNT en el ambiente natural de lagos, aguas de alcantarillas, suelos, polvo ambiental, étc y en los ambientes artificiales construídos por el hombre tales como : agua potable, acuarios, ya sea en forma planctónica o formando biofilm. Los objetivos del proyecto consistieron en elaborar las sensitinas (PPD) a partir de las cepas de MNT aisladas de los suelos de la provincia de La Pampa y comprobar la posible reacción cruzada con el PPD bovino. Se elaboraron dos series de sensitinas una correspondiente a M. fortuitum y otra a M. phlei, con una concentración de proteína en ambas de 1.5mg/mL. Se sensibilizaron cobayos con polvo de M. phlei, M.fortuitum y M. bovis juntamente con vaselina estéril y piedra pómez. A los 120 días se efectuaron las pruebas de potencia en los flancos de los cobayos. La actividad relativa en cobayos sensibilizados con M.bovis fue de 2.18% con el PPD de M.phlei y de 0.4% para el PPD de M.fortuitum lo cual demuestra que las micobacterias ambientales no presentaron un accionar relevante en la reacción intradérmica tuberculínica en cobayos. [ABSTRACT FROM AUTHOR]
- Abstract:
In countries that have managed to eradicate bovine tuberculosis, has been shown to interfere with certain MNT tuberculosis diagnosis, when applied to the intradermal purified protein derivative Mycobacterium bovis PPD. It has also been established that some species can invade and replicate MNT inside Acanthamoeba parasites such as Dictyostelium discoideum, these protozoa may act as reservoirs of MNT mammals parasitized. Exist in mammals in the natural environment of lakes, sewage, soil, environmental dust,etc.,and manmade artificial enviroments such as drinking water, aquariums, plactonica and biofilms. The objectives of the proyect were to develop the sensitines (PPD) from the isolates of NTM isolated from soils of the province of La Pampa and check possible cross-reaction with PPD bovine .Two sensitines series of Mycobacterium fortuitum corresponding to and another Mycobacterium phlei, with protein concentration of 1.5 mg/mL. Guinea pigs were sensitized with Mycobacterum phlei, Mycobacterium fortuitum and Mycobacterium bovis power with sterile vaseline and pumice. After 120 days tests potency were carried out on the flanks of guinea pigs. The relative activity in guinea pigs sensitized with Mycobacterium bovis was of 2.18% with M.phlei and of 0.4% for the PPD Mycobacterium fortuitum ,wich shows that the environmental mycobacteria had no relevant actions in guinea pigs tuberculin intradermal reaction. [ABSTRACT FROM AUTHOR]
- Abstract:
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