Protective effects of Curcuma longa against neurobehavioral and neurochemical damage caused by cerium chloride in mice
2018
Kadri, Yamina | Nciri, Riadh | Brahmi, Noura | Saidi, Saber | Harrath, Abdel Halim | Alwasel, Saleh | Aldahmash, Waleed | El Feki, Abdelfatteh | Allagui, Mohamed Salah
Cerium chloride (CeCl₃) is considered an environmental pollutant and a potent neurotoxic agent. Medicinal plants have many bioactive compounds that provide protection against damage caused by such pollutants. Curcuma longa is a bioactive compound-rich plant with very important antioxidant properties. To study the preventive and healing effects of Curcuma longa on cerium-damaged mouse brains, we intraperitoneally injected cerium chloride (CeCl₃, 20 mg/kg BW) along with Curcuma longa extract, administrated by gavage (100 mg/kg BW), into mice for 60 days. We then examined mouse behavior, brain tissue damage, and brain oxidative stress parameters. Our results revealed a significant modification in the behavior of the CeCl₃-treated mice. In addition, CeCl₃ induced a significant increment in lipid peroxidation, carbonyl protein (PCO), and advanced oxidation protein product levels, as well as a significant reduction in superoxide dismutase (SOD) and glutathione peroxidase (GPx) activities. Acetylcholinesterase (AChE) activity remarkably increased in the brain of CeCl₃-treated mice. Histopathological observations confirmed these results. Curcuma longa attenuated CeCl₃-induced oxidative stress and increased the activities of antioxidant enzymes. It also decreased AChE activity in the CeCl₃-damaged mouse brain that was confirmed by histopathology. In conclusion, this study suggests that Curcuma longa has a neuroprotective effect against CeCl₃-induced damage in the brain.
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