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2017 ; 10
(ä): 297-302
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The para isomer of dinitrobenzene disrupts redox homeostasis in liver and kidney
of male wistar rats
#MMPMID28955757
Sangodele JO
; Olaleye MT
; Monsees TK
; Akinmoladun AC
Biochem Biophys Rep
2017[Jul]; 10
(ä): 297-302
PMID28955757
show ga
BACKGROUND: Para-Dinitrobenzene (p-DNB) is one of the isomers of dinitrobenzene
which have been detected as environmental toxicants. Skin irritation and organ
toxicities are likely for industrial workers exposed to p-DNB. This study
evaluated the effect of sub-chronic exposure of rats to p-DNB on cellular redox
balance, hepatic and renal integrity. METHODS: Forty eight male Wistar rats
weighing 160-180 g were administered 50, 75, 1000 and 2000 mg/kg b.wt (body
weight) of p-DNB or an equivalent volume of vehicle (control) orally and
topically for 14 days. After the period of treatment, the activities of kidney
and liver catalase (CAT), alkaline phosphatase (ALP) and superoxide dismutase
(SOD) as well as extent of renal and hepatic lipid peroxidation (LPO) were
determined. Serum ALP activity and plasma urea concentration were also evaluated.
RESULTS: Compared with control animals, p-DNB -administered rats showed decrease
in the body and relative kidney and liver weights as well as increased renal and
hepatic hydrogen peroxide and lipid peroxidation levels accompanied by decreased
superoxide dismutase and catalase activities. However, p-DNB caused a significant
increase in plasma urea concentration and serum, liver and kidney ALP activities
relative to control. In addition, p-DNB caused periportal infiltration, severe
macro vesicular steatosis and hepatic necrosis in the liver. CONCLUSIONS: Our
findings show that sub-chronic oral and sub-dermal administration of p-DNB may
produce hepato-nephrotoxicity through oxidative stress.