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Abstract Title:

Sodium fluoride affects zebrafish behaviour and alters mRNA expressions of biomarker genes in the brain: Role of Nrf2/Keap1.

Abstract Source:

Environ Toxicol Pharmacol. 2015 Sep ;40(2):352-9. Epub 2015 Jul 14. PMID: 26245810

Abstract Author(s):

Debdip Mukhopadhyay, Pooja Priya, Ansuman Chattopadhyay

Article Affiliation:

Debdip Mukhopadhyay

Abstract:

Sodium fluoride (NaF), used as pesticides and for industrial purposes are deposited in the water bodies and therefore affects its biota. Zebrafish exposed to NaF in laboratory condition showed hyperactivity and frequent surfacing activity, somersaulting and vertical swimming pattern as compared to the control group. Reactive oxygen species level was elevated and glutathione level was depleted along with increased malondialdehyde content in the brain. Levels of glutathione-s-transferase (GST), catalase (CAT) and superoxide dismutase were also elevated in the treatment groups. Expression of mRNA of nuclear factor erythroid 2 related factor 2 (Nrf2) and its inhibitor Kelch-like ECH-associated protein 1 (Keap1) during stress condition were observed along with Gst, Cat, NADPH: quinone oxidoreductase 1(Nqo1) and p38. Except Keap1, all other genes exhibited elevated expression. Nrf2/Keap1 proteins had similar expression pattern as their corresponding mRNA. The findings in this study might help to understand the molecular mechanism of fluoride induced neurotoxicity in fish.

Study Type : Animal Study
Additional Links
Adverse Pharmacological Actions : Neurotoxic : CK(1458) : AC(323)

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