Possible Differences in the Effects of Trypanosoma cruzi on Blood Cells and Serum Protein of Two Wildlife Reservoirs
Por:
Martinez-Hernandez, Fernando, Lopez-Diaz, Osvaldo, Bello-Bedoy, Rafael, Villalobos, Guiehdani, Munoz-Garcia, Claudia I., Alejandre-Aguilar, Ricardo, Cordoba-Aguilar, Alex, Gutierrez-Cabrera, Ana E., Suzan, Gerardo, Villanueva-Garcia, Claudia, Gama-Campillo, Lilia M., Diaz-Negrete, Mariela T., Rendon-Franco, Emilio
Publicada:
1 nov 2016
Resumen:
A key step in the dynamics of vector-borne diseases is the role of
seasonality. Trypanosoma cruzi is a protozoan that causes Chagas
disease. Some wild mammals are considered natural hosts, yet not all
mammals show the same response to infection. We explored the effect of
T. cruzi on blood parameters in two mammal carnivores, coati (Nasua
narica) and raccoon (Procyon lotor), that were naturally infected in
summer and winter seasons. The study was carried out in the Zoological
Park ``Parque Museo de la Venta,'' in Southeastern Mexico. Blood samples
were collected in summer and winter from 2010 to 2013. Parasite
infection was assessed by PCR from whole blood, and a complete hemogram
was determined by traditional manual methods. We found that both species
had the same T. cruzi I lineage. For coatis, mean corpuscular volume,
mean corpuscular hemoglobin, and monocytes were dependent of season,
while eosinophils and plasma proteins were significantly different, but
with no season effect. For raccoon, erythrocytes, mean corpuscular
volume, mean corpuscular hemoglobin, and monocytes were dependent of
season. These results and a previous study that indicated interspecific
differences in parasitemia in both species suggest that raccoon is a
better reservoir than coati. Such a different interspecific response
implies that animals do not contribute equally to maintain T. cruzi
parasites in the ecosystem. Such inequality differs according to season.
Filiaciones:
Martinez-Hernandez, Fernando:
Hosp Gen Dr Manuel Gea Gonzalez, Dept Ecol Agentes Patogenos, Mexico City, DF, Mexico
Lopez-Diaz, Osvaldo:
Univ Autonoma Metropolitana, Unidad Xochimilco, Dept Prod Agr & Anim, Calzada Hueso 1100, Mexico City 04960, DF, Mexico
Bello-Bedoy, Rafael:
Univ Autonoma Baja California, Fac Ciencias, Ensenada, Baja California, Mexico
Villalobos, Guiehdani:
Univ Nacl Autonoma Mexico, Inst Ecol, Dept Ecol Evolut, Ciudad Univ, Mexico City, DF, Mexico
Munoz-Garcia, Claudia I.:
Univ Autonoma Metropolitana, Unidad Xochimilco, Dept Prod Agr & Anim, Calzada Hueso 1100, Mexico City 04960, DF, Mexico
Alejandre-Aguilar, Ricardo:
Inst Politecn Nacl, Escuela Nacl Ciencias Biol, Dept Parasitol, Lab Entomol, Mexico City, DF, Mexico
Cordoba-Aguilar, Alex:
Univ Nacl Autonoma Mexico, Inst Ecol, Dept Ecol Evolut, Ciudad Univ, Mexico City, DF, Mexico
Gutierrez-Cabrera, Ana E.:
Inst Nacl Salud Publ, CONACyT Ctr Invest Enfermedades Infecciosas, Cuernavaca, Morelos, Mexico
Suzan, Gerardo:
Univ Nacl Autonoma Mexico, Fac Med Vet & Zootecnia, Ciudad Univ, Mexico City, DF, Mexico
Villanueva-Garcia, Claudia:
Univ Juarez Autonoma Tabasco, Div Acad Ciencias Biol, Lab Ecol Paisaje & Cambio Global, Villahermosa, Mexico
Gama-Campillo, Lilia M.:
Univ Juarez Autonoma Tabasco, Div Acad Ciencias Biol, Lab Ecol Paisaje & Cambio Global, Villahermosa, Mexico
Diaz-Negrete, Mariela T.:
Zool Chapultepec, Direcc Gen Zool & Vida Silvestre, Mexico City, DF, Mexico
Rendon-Franco, Emilio:
Univ Autonoma Metropolitana, Unidad Xochimilco, Dept Prod Agr & Anim, Calzada Hueso 1100, Mexico City 04960, DF, Mexico
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