Authors:
Y. Yabushita Kanazawa University School of Health Sciences, Faculty of Medicine 5-11-80 Kodatsuno Kanazawa 920-0942 Japan

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Y. Kanayama Kanazawa University School of Health Sciences, Faculty of Medicine 5-11-80 Kodatsuno Kanazawa 920-0942 Japan

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T. Tarohda Kanazawa University School of Health Sciences, Faculty of Medicine 5-11-80 Kodatsuno Kanazawa 920-0942 Japan

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T. Tuji Kanazawa University School of Health Sciences, Faculty of Medicine 5-11-80 Kodatsuno Kanazawa 920-0942 Japan

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K. Washiyama Kanazawa University School of Health Sciences, Faculty of Medicine 5-11-80 Kodatsuno Kanazawa 920-0942 Japan

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R. Amano Kanazawa University School of Health Sciences, Faculty of Medicine 5-11-80 Kodatsuno Kanazawa 920-0942 Japan

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Abstract  

Instrumental neutron activation analysis was to study the regional distributions of the minor (Na, K) and trace (Sc, Cr, Mn, Co, Zn, Se) elements in mice bred under the controlled diets with Zn content from 0.7 to 3520 ppm in small amounts of brain regions (cerebral cortex, corpus striatum, hippocampus, thalamus and hypothalamus, midbrain, cerebellum, pons and medulla, olfactory bulb). The trace elements were distributed heterogeneously among all brain regions and concentrated in corpus striatum and hippocampus. No significant changes were observed in Zn concentration of most brain regions among the mice bred under Zn-deficient ([Zn] = 3.6 ppm), -adequate and -excessive diets. The results indicate that the homeostasis of Zn seems to be maintained and the brain regional concentrations of Zn seem to be generally constant in all brain regions over a wide range of dietary Zn content from a deficient content as few ppm up to apparently excessive content as 3520 ppm. In an extremely severe Zn-deficient diet ([Zn]<0.7 ppm) where mice can hardly survive, the brain regions may have higher Zn concentration.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)