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Histopathologic changes in the kidney tissue of Prochilodus lineatus Valenciennes, 1836 (Characiformes, Prochilodontidae) induced by sublethal concentration of Trichlorfon exposure BABT
Veiga,Marcelo Leite da; Rodrigues,Edson de Lara; Pacheco,Fabio Juliano; Ranzani-Paiva,Maria José Tavares.
Studies were carried out to analyse the kidney histopathological alterations of "curimbatá", Prochilodus lineatus, were analyzed. An acute bioassay was made by the water contamination with 0.2muml/l of Dipterex 500 (Trichlorfon). The kidney tissue collected after 24 hours of exposure showed an enlargement of intercapsular space with glomerular atrophy, hypertrophy of the kidney tube cells, with small granules on its cytoplasm and little nuclear alteration. Blood overflowing from capillaries with pyknotic nuclei and vacuoles in the cytoplasm it was also noticed. After 48 hours, the kidney tissue showed glomerular expansion, impossibility to visualize the intercapsular space as well as cytoplasm limit of many cells. The parietal capsular epithelium and the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Kidney; Prochilodus lineatus; Curimbatá; Trichlorfon.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000200007
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Identification of glycoproteins in mucous cells of the gill epithelium of Colossoma macropomum after exposure to organophosphate Arq. Bras. Med. Vet. Zootec.
Moron,S.E.; Matos,P.R.; Ramos,A.T.; Gomes,M.G.T..
ABSTRACT The use of organophosphates has been recommended for fish, especially the trichlorfon to control parasites. Colossoma macropomum were exposed to trichlorfon during 96 hours and of total number of mucous cells decreased in the number of cells when compared to the control group. Glycoproteins acid, acid sulphated and neutral was identified in the gill epithelium. Neutra glycoprotein had a significant decrease between control and the sublethal concentration. Acid glycoprotein didn’t have any significant difference between the groups exposed to the trichlorfon, compared to the control group. Sulfated acidic glycoprotein in the group exposed to the trichlorfon was noticed a reduction in number of mucosal cells acidic sulphated. The differences between...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Epithelium; Glycoproteins; Organophosphate; Trichlorfon.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000300837
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Physiological and biochemical responses of Nile tilapia (Oreochromis niloticus) to acute trichlorfon exposure. Repositório Alice
CARDOSO, I. L.; SOARES, M. P.; DE ANGELIS, C.; FERRI, G. H.; ISHIKAWA, M. M.; JONSSON, C. M.; RANTIN, F. T.; SAMPAIO, F. G..
Abstract: Trichlorfon [TCF] is an organophosphate compound used to eliminate or control a variety of parasites in farmed fish. The physiological and biochemical responses of juvenile Nile tilapia were studied after 96 hours of exposure to TCF. The experiment was conducted randomly with two treatments: control and TCF (0.5 mg L-1). No mortality or changes in hematological profile were recorded for the fish. On the other hand, we found that TCF exposure caused behavioral, metabolic and hormonal changes that modified the response patterns of the immune and enzymatic defense system in muscle and liver tissues. Increased plasma cortisol and glucose combined with the reduction of acetylcholinesterase activity in muscle and liver tissue after 96-h of TCF exposure...
Tipo: Artigo de periódico Palavras-chave: Chemotherapy; Inseticida Organo-Fosforado; Impacto Ambiental; Tilápia Nilótica; Toxicologia; Toxidez; Tilapia (common name); Trichlorfon; Toxicity; Aquaculture.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1129721
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Physiological determinants of individual variation in sensitivity to an organophosphate pesticide in Nile tilapia Oreochromis niloticus ArchiMer
Mckenzie, David; Blasco, Felipe R.; Belao, Thiago C.; Killen, Shaun S.; Martins, Nathan D.; Taylor, Edwin W.; Tadeu Rantin, F..
Individual variation in sub-lethal sensitivity to the organophosphate pesticide trichlorfon was investigated in Nile tilapia, using critical swimming speed (U-crit) as an indicator. Tilapia exposed for 96 h to 500 mu g l-1 trichlorfon at 26 degrees C (Tcfn group, n = 27) showed a significant decline in mean U-crit, compared to their own control (pre-exposure) performance in clean water (-14.5 +/- 2.3%, mean +/- SEM), but also compared to a Sham group (n = 10) maintained for 96 h in clean water. Individuals varied in their relative sensitivity to the pesticide, with the decline in U-crit after exposure varying from 1 to 41%. The U-crit of the Tcfn group did not recover completely after 96 h in clean water, remaining 9.4 +/- 3.2% below their own control...
Tipo: Text Palavras-chave: Trichlorfon; Critical swimming speed; Metabolic rate; Respirometry; Nile tilapia; Individual variation.
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00625/73705/74889.pdf
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