Sodium selenite stimulates neurobehavior and neurochemical activities in rats |
| |
Authors: | Abdullah Shafique Ahmad Suhaila Zia Iqbal Sayeed Mubeen Ahmad Ansari Muzamil Ahmad Sofiyan Salim Seema Yousuf Fakhrul Islam |
| |
Institution: | (1) Neurotoxicology Laboratory, Department of Medical Elementology and Toxicology, Jamia Hamdard, Hamdard University, hamdard Nagar, 110062 New Delhi, India;(2) Present address: Department of Anesthesiology and Critical Care Medicine, School of Medicine, Johns Hopkins University, 21205 Baltimore, MD, USA |
| |
Abstract: | The effect of 0.05, 0.1, and 0.2 mg sodium selenite/kg body weight ip on the activities of neurobehavioral, acetyl cholinesterase,
monoamine oxidase, and the content of dopamine and its metabolites in circadian rhythm centers of male Wistar rats was studied
after 7 d of treatment. The results show an appreciable increase in locomotion, stereo-events, distance traveled, and average
speed at the dose of 0.1 and 0.2 mg sodium selenite/kg. The data have shown hyperactivity of animals with various doses of
sodium selenite, and it was significant and dose-dependent after 3 d of treatment. The activity of acetylcholinesterase (AChE)
was inhibited dose dependently, and it was significant in preoptic area with 0.1 or 0.2 mg sodium selenite/kg. Conversely,
in the posterior hypothalamus its activity was significantly elevated with the dose of 0.2 mg sodium selenite/kg, but its
alteration in brain stem was not significant. Monoamine oxidase (MAO) activity was increased in preoptic area with the dose
of 0.1 mg sodium selenite/kg, but its alteration in posterior hypothalamus and brain stem was not significant. The content
of dopamine (DA), 3,4-dihydroxyphenyl acetic acid (DOPAC), and homovanilic acid (HVA) was elevated dose dependently and it
was significant with the doss of 0.1 and 0.2 mg sodium selenite/kg, but the content of DOPAC and HVA in posterior hypothalamus
was not significant with the dose of 0.1 mg sodium selenite/kg. |
| |
Keywords: | Sodium selenite dopamine DOPAC HVA AChE MAO circadian rhythm centers |
本文献已被 PubMed SpringerLink 等数据库收录! |
|