We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Characteristics of Zn Content and Localization, Cu–Zn SOD, and MT Levels in the Tissues of Marginally Zn-Deficient Mice.
- Authors
Wang, Ziqiong; Peng, Cheng; Zhang, Yuting; Wang, Lei; Yu, Lu; Wang, Chunhong
- Abstract
Zinc (Zn) is an important trace element in the human body, and Zn deficiency affects the Zn content of major tissues. Marginal Zn deficiency is more common than severe Zn deficiency in humans. The objective of the present study was to compare the content and distribution of Zn and the change in the copper (Cu)–Zn superoxide dismutase (SOD) and metallothionein (MT) levels of soft tissues. Mice were fed with 30 mg/kg (control) or 10 mg/kg (marginally Zn-deficient, MZD) Zn diet for 35 days. We observed that only the Zn contents of serum, bones, and muscles in the control group were higher than those in the MZD group. Autometallography (AMG) was used as a method for staining Zn ions, and the semi-quantitative result indicated that the AMG products of the liver, duodenum, heart, lung, testes, and epididymis in the control group were higher than those in the MZD group. Furthermore, the contents of MT and the activities of Cu–Zn SOD in the testes, brain, duodenum, and liver were higher in the control group than those in the MZD group. However, the AMG products and the activities of Cu–Zn SOD of the kidney in the MZD group were more/higher than those in the control group. These results indicated that a change in the total Zn content of soft tissues may be not obvious and insensitive, and thus, more attention should be given to the distribution and localization of Zn ions. The functional indicators, MT and Cu–Zn SOD, are suitable biomarkers for evaluating zinc nutritional status. The brain, testes, duodenum, and liver are susceptive organs to Zn deficiency.
- Subjects
HUMAN body; TISSUES; SUPEROXIDE dismutase; NUTRITIONAL status; EPIDIDYMIS; LUNGS; MALE reproductive organs
- Publication
Biological Trace Element Research, 2023, Vol 201, Issue 1, p262
- ISSN
0163-4984
- Publication type
Article
- DOI
10.1007/s12011-022-03119-4