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Histopathological changes in the head kidney induced by cadmium in a neotropical fish Colossoma macropomum

R. Salazar-Lugo1,*, A. Vargas1, L. Rojas2 and M. Lemus3.


Abstract
We evaluated the effect of cadmium (Cd) on the structure and function of the head kidney in the freshwater fish Colossoma macropomum (C. macropomum). Juveniles were exposed to 0.1 mg/L CdCl2 for 31 days. Blood samples were examined using hematological tests and head kidney histology was determined by light microscopy. The concentration of Cd in the head and trunk kidneys was measured using an atomic absorption spectrophotometer. Cd produced histopathological changes in the head kidney, the most evident of these being: the thickening of the vein wall, an increase in the number of basophils/mast cells close to blood vessels and a severe depletion of hematopoietic precursors especially the granulopoietic series. In the blood, a decrease in the total leucocytes and hemoglobin concentration was observed. Cd-exposed fish showed higher Cd concentrations in the trunk kidney than the head kidney. In conclusion, exposure to Cd affected precursor hematopoietic cells in C. macropomum.

Key words: Cadmium, Colossoma macropomum, Granulocytes, Head kidney, Histology.


 
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How to Cite this Article
Pubmed Style

R. Salazar-Lugo,, A. Vargas, L. Rojas and M. Lemus. Histopathological changes in the head kidney induced by cadmium in a neotropical fish Colossoma macropomum. Open Vet J. 2013; 3(2): 145-150. doi:10.5455/OVJ.2013.v3.i2.p145

Web Style

R. Salazar-Lugo,, A. Vargas, L. Rojas and M. Lemus. Histopathological changes in the head kidney induced by cadmium in a neotropical fish Colossoma macropomum. https://www.openveterinaryjournal.com/?mno=302656866 [Access: April 09, 2024]. doi:10.5455/OVJ.2013.v3.i2.p145

AMA (American Medical Association) Style

R. Salazar-Lugo,, A. Vargas, L. Rojas and M. Lemus. Histopathological changes in the head kidney induced by cadmium in a neotropical fish Colossoma macropomum. Open Vet J. 2013; 3(2): 145-150. doi:10.5455/OVJ.2013.v3.i2.p145


Vancouver/ICMJE Style

R. Salazar-Lugo,, A. Vargas, L. Rojas and M. Lemus. Histopathological changes in the head kidney induced by cadmium in a neotropical fish Colossoma macropomum. Open Vet J. (2013), [cited April 09, 2024]; 3(2): 145-150. doi:10.5455/OVJ.2013.v3.i2.p145


Harvard Style

R. Salazar-Lugo,, A. Vargas, L. Rojas and M. Lemus (2013) Histopathological changes in the head kidney induced by cadmium in a neotropical fish Colossoma macropomum. Open Vet J, 3 (2), 145-150. doi:10.5455/OVJ.2013.v3.i2.p145


Turabian Style

R. Salazar-Lugo,, A. Vargas, L. Rojas and M. Lemus. 2013. Histopathological changes in the head kidney induced by cadmium in a neotropical fish Colossoma macropomum. Open Veterinary Journal, 3 (2), 145-150. doi:10.5455/OVJ.2013.v3.i2.p145


Chicago Style

R. Salazar-Lugo,, A. Vargas, L. Rojas and M. Lemus. "Histopathological changes in the head kidney induced by cadmium in a neotropical fish Colossoma macropomum." Open Veterinary Journal 3 (2013), 145-150. doi:10.5455/OVJ.2013.v3.i2.p145


MLA (The Modern Language Association) Style

R. Salazar-Lugo,, A. Vargas, L. Rojas and M. Lemus. "Histopathological changes in the head kidney induced by cadmium in a neotropical fish Colossoma macropomum." Open Veterinary Journal 3.2 (2013), 145-150. Print. doi:10.5455/OVJ.2013.v3.i2.p145


APA (American Psychological Association) Style

R. Salazar-Lugo,, A. Vargas, L. Rojas and M. Lemus (2013) Histopathological changes in the head kidney induced by cadmium in a neotropical fish Colossoma macropomum. Open Veterinary Journal, 3 (2), 145-150. doi:10.5455/OVJ.2013.v3.i2.p145


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