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Zhang L, Wang JS, Wang Q, Li KX, Guo TY, Xiao X, Wang YX, Zhan XA. Effects of Maternal Zinc Glycine on Mortality, Zinc Concentration, and Antioxidant Status in a Developing Embryo and 1-Day-Old Chick. Biol Trace Elem Res 2018; 181:323-330. [PMID: 28508186 DOI: 10.1007/s12011-017-1028-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 04/18/2017] [Indexed: 11/25/2022]
Abstract
This study was conducted to investigate the effects of maternal zinc glycine (Zn-Gly) supplementation as an alternative for zinc sulfate (ZnSO4) on mortality, zinc (Zn) concentration, and antioxidant status in a developing embryo and 1-day-old chick. Six hundred 39-week-old broiler breeders were randomly assigned to 6 treatments, each treatment including 5 replicates with 20 birds each. Six treatments received a basal diet (control, 24 mg Zn/kg diet) or a basal diet supplemented with ZnSO4 (80 mg Zn/kg) or Zn-Gly (20, 40, 60, or 80 mg Zn/kg), respectively. The experiment lasted for 8 weeks after a 4-week pre-experiment with a basal diet. At the last week, 100 eggs per replicate were randomly collected for incubation. Compared with the control treatment, Zn supplementation decreased (P < 0.05) embryo mortalities of the late stage and the whole period, increased (P < 0.05) liver Zn concentration in the embryo of d9, d19, and 1-day-old chick, and improved (P < 0.05) antioxidant status in the embryo of d19 and 1-day-old chick. Compared with the ZnSO4 treatment, 80 mg Zn/kg Zn-Gly treatment significantly decreased (P < 0.05) the late stage embryo mortality and increased (P < 0.05) liver Zn concentration in the embryo of d9, d19, and 1-day-old chick. The 80 mg Zn/kg Zn-Gly treatment significantly increased (P < 0.05) copper-zinc superoxide dismutase activity in d19 embryo and 1-day-old chick, total superoxide dismutase activity in 1-day-old chick, and copper-zinc superoxide dismutase messenger RNA (mRNA) abundance of d9 embryo and 1-day-old chick than that in ZnSO4 treatment. The liver metallothionein concentration of the developing embryo and 1-day-old chick and its mRNA abundance of d19 embryo were also significantly increased (P < 0.05) in the 80 mg Zn/kg Zn-Gly treatment in comparison with ZnSO4 treatment. In conclusion, maternal Zn supplementation decreased embryo mortalities of the late stage and the whole period by increasing liver Zn concentration and antioxidant status in d19 embryo and 1-day-old chick, and 80 mg Zn/kg from Zn-Gly treatment was the optimum choice.
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Affiliation(s)
- Ling Zhang
- Feed Science Institute, College of Animal Science, Zhejiang University, No.866, Yuhangtang Road, Hangzhou, 310058, People's Republic of China
| | - Jiang-Shui Wang
- Feed Science Institute, College of Animal Science, Zhejiang University, No.866, Yuhangtang Road, Hangzhou, 310058, People's Republic of China
| | - Qian Wang
- Feed Science Institute, College of Animal Science, Zhejiang University, No.866, Yuhangtang Road, Hangzhou, 310058, People's Republic of China
| | - Kai-Xuan Li
- Feed Science Institute, College of Animal Science, Zhejiang University, No.866, Yuhangtang Road, Hangzhou, 310058, People's Republic of China
| | - Tian-Yu Guo
- Feed Science Institute, College of Animal Science, Zhejiang University, No.866, Yuhangtang Road, Hangzhou, 310058, People's Republic of China
| | - Xue Xiao
- Feed Science Institute, College of Animal Science, Zhejiang University, No.866, Yuhangtang Road, Hangzhou, 310058, People's Republic of China
| | - Yong-Xia Wang
- College of Animal Science and Technology, Zhejiang A & F University, Lin'an City, 311300, People's Republic of China
| | - Xiu-An Zhan
- Feed Science Institute, College of Animal Science, Zhejiang University, No.866, Yuhangtang Road, Hangzhou, 310058, People's Republic of China.
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Babaknejad N, Sayehmiri F, Sayehmiri K, Mohamadkhani A, Bahrami S. The Relationship between Zinc Levels and Autism: A Systematic Review and Meta-analysis. Iran J Child Neurol 2016; 10:1-9. [PMID: 27843460 PMCID: PMC5100031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 08/25/2015] [Accepted: 11/14/2015] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Autism is a complex behaviorally defined disorder.There is a relationship between zinc (Zn) levels in autistic patients and development of pathogenesis, but the conclusion is not permanent. MATERIALS & METHODS The present study conducted to estimate this probability using meta-analysis method. In this study, Fixed Effect Model, twelve articles published from 1978 to 2012 were selected by searching Google scholar, PubMed, ISI Web of Science, and Scopus and information were analyzed. I² statistics were calculated to examine heterogeneity. The information was analyzed using R and STATA Ver. 12.2. RESULTS There was no significant statistical difference between hair, nail, and teeth Zn levels between controls and autistic patients: -0.471 [95% confidence interval (95% CI): -1.172 to 0.231]. There was significant statistical difference between plasma Zn concentration and autistic patients besides healthy controls: -0.253 (95% CI: 0.498 to -0.007). Using a Random Effect Model, the overall Integration of data from the two groups was -0.414 (95% CI: -0.878 to -0.051). CONCLUSION Based on sensitivity analysis, zinc supplements can be used for the nutritional therapy for autistic patients.
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Affiliation(s)
- Nasim Babaknejad
- Research Committee, School of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Fatemeh Sayehmiri
- Research Committee, School of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Kourosh Sayehmiri
- Department of Social Medicine, School of Medicine, Ilam University of Medical Sciences, Ilam, Iran.; Department of Biostatistics, Research Center for Prevention of psychosocial impairment, University of Ilam, Ilam, Iran
| | - Ashraf Mohamadkhani
- Liver and Pancreatobiliary Diseases Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Somaye Bahrami
- Research Committee, School of Medicine, Ilam University of Medical Sciences, Ilam, Iran
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Grider A, Lewis RD, Laing EM, Bakre AA, Tripp RA. Zinc affects miR-548n, SMAD4, SMAD5 expression in HepG2 hepatocyte and HEp-2 lung cell lines. Biometals 2015; 28:959-66. [PMID: 26409456 DOI: 10.1007/s10534-015-9880-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 09/21/2015] [Indexed: 01/11/2023]
Abstract
MicroRNAs affect disease progression and nutrient status. miR-548n increased 57 % in Zn supplemented plasma from adolescent females (ages 9 to 13 years). The purpose of this study was to determine the effects of Zn concentration in cell culture on the expression of miR-548n, SMAD4 and SMAD5 in hepatocyte (HepG2) and lung epithelium (HEp-2) cell lines. Cells were incubated for 48 h in media containing 10 % Chelex 100-treated FBS (0 μM Zn), or with 15 or 50 μM Zn, before isolation of total RNA and cDNA. Expression of miR-548n, SMAD4 and SMAD5 was measured by qPCR. The ΔΔCT method was used to calculate the fold-change, and 15 µM expression levels were used as reference values. HepG2 miR-548n expression decreased 5-fold, and SMAD4 expression increased 4-fold in the absence of Zn, while HEp-2 miR-548n expression increased 10.5-fold, and SMAD5 expression increased 20-fold in the absence of Zn. HEp-2 miR-548n expression increased 23-fold, while SMAD4 expression decreased twofold, in 50 μM Zn-treated cells. However, SMAD4 and SMAD5 expression was not correlated. These data indicate that miR-548n expression is in part regulated by Zn in a cell-specific manner. SMAD4 and SMAD5 are genes in the TGF-β/BMP signaling pathway, and SMAD5 is a putative target for miR-548n; Zn participates in regulating this pathway through controlling SMAD4 and SMAD5 expression. However, SMAD5 expression may be more sensitive to Zn than to miR-548n since SMAD5 expression was not inversely correlated with miR-548n expression.
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Affiliation(s)
- Arthur Grider
- Department of Foods and Nutrition, The University of Georgia, Athens, GA, 30602, USA.
| | - Richard D Lewis
- Department of Foods and Nutrition, The University of Georgia, Athens, GA, 30602, USA
| | - Emma M Laing
- Department of Foods and Nutrition, The University of Georgia, Athens, GA, 30602, USA
| | - Abhijeet A Bakre
- Department of Infectious Diseases, College of Veterinary Medicine, The University of Georgia, Athens, GA, 30602, USA
| | - Ralph A Tripp
- Department of Infectious Diseases, College of Veterinary Medicine, The University of Georgia, Athens, GA, 30602, USA
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