Home General Physiology and Biophysics 2016 General Physiology and Biophysics Vol.35, No.3, p.363–370, 2016

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Founded: 1982
ISSN 1338-4325 (online)
ISSN 0231-5882 (print)
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General Physiology and Biophysics Vol.35, No.3, p.363–370, 2016

Title: Methionine-choline deprivation alters liver and brain acetylcholinesterase activity in C57BL6 mice
Author: Danijela B. Vučević, Ivana B. Cerović, Dušan R. Mladenović, Milena N. Vesković, Ivana Stevanović, Bojan Z. Jorgačević, Rada Ješić Vukićević, Tatjana S. Radosavljević

Abstract:

Choline and methionine are precursors of acetylcholine, whose hydrolysis is catalyzed by acetylcholinesterase (AChE). Considering the possibility of their common deficiency, we investigated the influence of methionine-choline deprivation on AChE activity in liver and various brain regions (hypothalamus, hippocampus, cerebral cortex and striatum) in mice fed with methionine-choline deficient (MCD) diet. Male C57BL/6 mice (n = 28) were randomly and equally divided into following groups: control group fed with standard diet for 6 weeks (C) and groups fed with MCD diet for 2 weeks (MCD2), 4 weeks (MCD4) and for 6 weeks (MCD6). After the diet, mice were sacrificied and AChE activity in liver and brain was determined spectrophotometrically. Hepatic AChE activity was higher in MCD2, MCD4 and MCD6 compared to control (p < 0.01), with most prominent increase in MCD6. AChE activity in hypothalamus was higher in MCD4 and MCD6 vs. control (p < 0.05 and p < 0.01, respectively), as well as in MCD6 compared to MCD4 (p < 0.01).

In hippocampus, increase in AChE activity was shown in MCD6 compared to control (p < 0.01). In cortex and striatum, increase in AChE activity was noted in MCD6 compared to control (p < 0.05). Our findings indicate the increase of hepatic and brain AChE activity in mice caused by methionine-choline deprivation.



Keywords: Acetylcholinesterase — Brain — Liver — Methionine-choline deficient (MCD) diet — Mice
Published online: 13-Jun-2016
Year: 2016, Volume: 35, Issue: 3 Page From: 363, Page To: 370
doi:10.4149/gpb_2015052


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