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Nutr Metab (Lond). 2019 Sep 5;16:61. doi: 10.1186/s12986-019-0374-3. eCollection 2019.

(3Z)-5-Chloro-3-(Hydroxyimino)indolin-2-one attenuates hyperglycemia, increased hepatic glycogen content and hepatic damage induced by malathion acute exposure in rats.

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1Universidade Federal do Pampa (UNIPAMPA) Campus Uruguaiana, Uruguaiana, RS CEP 97500-970 Brazil.
2Universidade Federal do Rio Grande - Campus Carreiros, Rio Grande, RS CEP 96201-900 Brazil.
Instituto Federal de Educação, Ciência e Tecnologia Farroupilha - Campus Santo Ângelo, Santo Ângelo, RS CEP 98806-700 Brazil.
4Universidade Federal de Pelotas (UFPel) - Campus Capão do Leão s/n, Pelotas, RS CEP 96010-900 Brazil.
Universidade Regional Integrada (URI), Campus Erechim, Erechim, RS CEP 99709-910 Brazil.



Organophosphorus pesticides (OP's) are heavily constituted in agriculture, gardens, home and veterinary and although it is useful, there are concerns about the environment, safety and health of human and animals. In this study, we investigated the effects of a new oxime, (3Z)-5-Chloro-3-(Hydroxyimino)indolin-2-one (OXIME) against the alterations induced by malathion, an OP insecticide, acute exposure on markers of hepatic damage, glucose homeostasis, oxidative stress in rats cholinesterase (ChE) activity in rats.


Adult male Wistar rats were divided into four groups: Control; Malathion; OXIME; and Malathion+OXIME. Twelve hours after co-treatment with malathion (250 mg/kg, i.p.) and/or OXIME (50 mg/kg, i.g.), the plasma and liver samples were collected for biochemical analyses.


The OXIME blocked the increase of plasma markers of hepatic function (AST and ALP) and the enzymatic inhibition of catalase and glutathione reductase in the liver of malathion-treated rats. Moreover, the hepatic cholinesterases inhibition induced by malathion acute exposure was suppressed by OXIME treatment. As assessed, a single dose of OXIME lowered the glycemia levels and hepatic glycogen content enhanced by malathion.


This study suggests promise effects of (3Z)-5-Chloro-3-(Hydroxyimino) indolin-2-one against the hyperglycemia and the hepatic damage induced by malathion acute exposure, as well as its use as a ChE activity reactivator.


Aminotransferases; Antioxidant enzymes; Cholinesterases; Glucose metabolism; Organophosphate; Oxime

Conflict of interest statement

Competing interestsThe authors declare that they have no competing interests.

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