1
|
Toh P, Seale LA, Berry MJ, Torres DJ. Prolonged maternal exposure to glucocorticoids alters selenoprotein expression in the developing brain. Front Mol Neurosci 2023; 16:1115993. [PMID: 37033382 PMCID: PMC10080067 DOI: 10.3389/fnmol.2023.1115993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 03/09/2023] [Indexed: 04/11/2023] Open
Abstract
Aberrant activation of the stress-response system in early life can alter neurodevelopment and cause long-term neurological changes. Activation of the hypothalamic-pituitary-adrenal axis releases glucocorticoids into the bloodstream, to help the organism adapt to the stressful stimulus. Elevated glucocorticoid levels can promote the accumulation of reactive oxygen species, and the brain is highly susceptible to oxidative stress. The essential trace element selenium is obtained through diet, is used to synthesize antioxidant selenoproteins, and can mitigate glucocorticoid-mediated oxidative damage. Glucocorticoids can impair antioxidant enzymes in the brain, and could potentially influence selenoprotein expression. We hypothesized that exposure to high levels of glucocorticoids would disrupt selenoprotein expression in the developing brain. C57 wild-type dams of recently birthed litters were fed either a moderate (0.25 ppm) or high (1 ppm) selenium diet and administered corticosterone (75 μg/ml) via drinking water during postnatal days 1 to 15, after which the brains of the offspring were collected for western blot analysis. Glutathione peroxidase 1 and 4 levels were increased by maternal corticosterone exposure within the prefrontal cortex, hippocampus, and hypothalamus of offspring. Additionally, levels of the glucocorticoid receptor were decreased in the hippocampus and selenoprotein W was elevated in the hypothalamus by corticosterone. Maternal consumption of a high selenium diet independently decreased glucocorticoid receptor levels in the hippocampus of offspring of both sexes, as well as in the prefrontal cortex of female offspring. This study demonstrates that early life exposure to excess glucocorticoid levels can alter selenoprotein levels in the developing brain.
Collapse
Affiliation(s)
| | | | | | - Daniel J. Torres
- Pacific Biosciences Research Center, School of Ocean and Earth Science and Technology, University of Hawaii at Manoa, Honolulu, HI, United States
| |
Collapse
|
2
|
Selenium Status and Supplementation Effects in Pregnancy—A Study on Mother–Child Pairs from a Single-Center Cohort. Nutrients 2022; 14:nu14153082. [PMID: 35956267 PMCID: PMC9370234 DOI: 10.3390/nu14153082] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 07/22/2022] [Accepted: 07/23/2022] [Indexed: 01/27/2023] Open
Abstract
The demand for selenium (Se) increases during pregnancy since this element supports child growth, proper neuronal development and maternal thyroid function. The issue is particularly relevant for populations living in areas with a limited selenium supply, where many pregnant women opt for Se supplementation. The efficiency of this measure is unknown, although it seems vital in the prevention of severe Se deficiency. In order to evaluate this hypothesis, an observational study was conducted in Poland, where Se deficiency is prevalent. Pregnant women were invited to participate in the study and provided serum samples at the end of pregnancy (n = 115). Information on the supplemental intake of micronutrients was recorded in a face-to-face interview. In addition, serum samples were isolated from the cord blood of newborns at delivery (n = 112) and included in the analyses. Thyroid hormone status was evaluated by routine laboratory tests, and Se status was determined by total Se and selenoprotein P (SELENOP) concentrations and extracellular glutathione peroxidase (GPX3) activity. The three parameters of Se status correlated strongly within the group of mothers and within the group of newborns, with an additional significant correlation found among mother–child pairs. One-third of mothers reported additional Se intake, mainly as a component of multi-micronutrient supplements, at a mean (±SD) dosage of 42 ± 14 µg Se/day. Despite this regime, most of the women presented an insufficient Se status, with 79% of mothers displaying serum Se concentrations below 70 µg/L (indicating Se deficiency) and 22% showing levels below 45.9 µg/L (severe Se deficiency). The inadequate Se supply was also reflected in relatively low SELENOP concentrations and GPX3 activity. Neither total Se nor SELENOP or GPX3 levels were significantly higher in the group of mothers reporting the intake of supplements than in the non-supplementing group. Nevertheless, elevated SELENOP concentrations were observed in the subgroup receiving supplements with more than 55 µg/day. We conclude that the self-administered supplementation of small Se dosages was not sufficient to achieve replete Se status in the micronutrient scant area. However, the maternal Se deficit measured by either Se, SELENOP or GPX3 was transferred from mothers to the newborns, as the parameters correlated strongly in the mother–newborn pairs of samples. It is vital to re-evaluate the guidelines concerning pregnancy care and monitoring of micronutrient status during pregnancy, in particular in areas where deficiencies are present.
Collapse
|
3
|
Zhou L, Feng Y, Liu Y, He L, Zhou X, Yin Y. Serine Supplementation in the Diets of Late Gestating and Lactating Sows Improves Selenium Nutritional Status in Sows and Their Offspring. Biol Trace Elem Res 2022; 200:609-614. [PMID: 33686633 DOI: 10.1007/s12011-021-02661-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 02/28/2021] [Indexed: 02/07/2023]
Abstract
Serine can regulate selenoprotein expression, and dietary serine is correlated with the contents of plasma selenoprotein P (Sepp1) and milk selenium (Se) in lactating mothers. Based on this, we investigated the effects of serine supplementation in the diets of late gestating and lactating sows on Sepp1 and Se contents in sows and their offspring. A total of 72 sows were assigned to four groups. During the experiment, sows were fed either a basal diet or basal diets supplemented with three different levels of serine. The results showed that maternal dietary serine had no effect on the Se content in the serum of sows and their offspring, whereas it significantly increased the Se content in the liver of piglets at the age of 21 days. Maternal dietary serine significantly increased Sepp1 content, either in the serum of sows or that in their offspring at the ages of 3 days, 7 days, and 21 days. Additionally, maternal dietary serine significantly increased litter weight and the average body weight of piglets at the age of 11 days. Notably, a positive correlation was found between the average body weight of piglets at the age of 11 days and serum Sepp1 content in piglets, at the age of either 3 days or 7 days. In conclusion, maternal dietary serine supplementation could improve Se nutritional status in sows and their offspring. These beneficial changes may contribute to the higher body weight of the offspring.
Collapse
Affiliation(s)
- Lamei Zhou
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, 410128, China
| | - Yanzhong Feng
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, China
| | - Yonghui Liu
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
- Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, College of Life Sciences, Hunan Normal University, Changsha, 410081, China
| | - Liuqin He
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
- Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, College of Life Sciences, Hunan Normal University, Changsha, 410081, China
| | - Xihong Zhou
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China.
| | - Yulong Yin
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, 410128, China
- Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, College of Life Sciences, Hunan Normal University, Changsha, 410081, China
| |
Collapse
|
4
|
Chen J, Zhang Y, Lv Y, Tian M, You J, Chen F, Zhang S, Guan W. Effects of Selenomethionine on Cell Viability, Selenoprotein Expression and Antioxidant Function in Porcine Mammary Epithelial Cells. Front Nutr 2021; 8:665855. [PMID: 34381803 PMCID: PMC8349979 DOI: 10.3389/fnut.2021.665855] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 06/28/2021] [Indexed: 01/29/2023] Open
Abstract
This study investigated the effects of selenomethionine (Se-Met) on the cell viability, selenoprotein expression, and antioxidant function of porcine mammary epithelial cells (pMECs) to reveal the underlying molecular mechanism of Se-Met on the lactation performance and antioxidant capacity of sows in vitro. The pMECs were used as an in vitro model and were treated with various concentrations of Se-Met (0, 0.5, 1, 2, and 4 μM). Cells were analyzed for cell viability, selenoprotein transcriptome, selenoprotein expression, and antioxidant enzyme activities. The results showed that, with increasing Se-Met concentrations, cell viability first increased and then decreased at 24, 48, or 72 h posttreatment with maximum values at 0.5-μM Se-Met. As the Se-Met concentrations increased, the mRNA expression of 17 selenoproteins first upregulated and then downregulated, with maximum values at 0.5-μM Se-Met. The 17 selenoproteins included SEPHS2, SELENOP, GPX1, GPX2, GPX3, GPX6, TXNRD1, SELENOK, SELENOW, DIO1, DIO2, DIO3, SELENOF, SELENOS, SELENOH, SELENOI, and SELENOT. Additionally, the protein expression levels of SEPHS2, SELENOP, GPX1, and TXNRD1 and the activities of glutathione peroxidase and thioredoxin were highest at 0.5-μM Se-Met. In conclusion, 0.5-μM Se-Met promotes cell viability partially by improving selenoprotein expression and antioxidant function in pMECs, which provides evidence for the potential ability of Se-Met to improve mammary gland health in sows.
Collapse
Affiliation(s)
- Jun Chen
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou, China.,Jiangxi Province Key Laboratory of Animal Nutrition, Engineering Research Center of Feed Development, Jiangxi Agricultural University, Nanchang, China
| | - Yinzhi Zhang
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Yantao Lv
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Min Tian
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Jinming You
- Jiangxi Province Key Laboratory of Animal Nutrition, Engineering Research Center of Feed Development, Jiangxi Agricultural University, Nanchang, China
| | - Fang Chen
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Shihai Zhang
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Wutai Guan
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou, China.,College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou, China
| |
Collapse
|
5
|
Han F, Pang X, Wang Q, Liu Y, Liu L, Chai Y, Zhang J, Wang S, Lu J, Sun L, Zhan S, Wu H, Huang Z. Dietary Serine and Sulfate-Containing Amino Acids Related to the Nutritional Status of Selenium in Lactating Chinese Women. Biol Trace Elem Res 2021; 199:829-841. [PMID: 32533294 DOI: 10.1007/s12011-020-02204-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 05/14/2020] [Indexed: 12/11/2022]
Abstract
Previous studies suggested that serine can promote the synthesis of selenoproteins and the interaction, transformation, and replacement of serine, cysteine, and selenocysteine have been observed in the human body. This study was designed to clarify whether the dietary intakes of serine and sulfate-containing amino acids (SAAs) could directly affect the selenium (Se) nutritional status or the level of milk Se in lactating women. Breast milk and plasma samples were collected from a total of 264 lactating Chinese women when they revisited their local hospital at the 42nd day postpartum to detect the concentration of Se with ICP-MS and the content of selenoprotein P (SEPP1) and the activity of glutathione peroxidase 3 (GPX3) in the plasma by ELISA. The daily Se intake by each subject was calculated based on her own plasma Se concentration. The 24-h dietary record data for 3 consecutive days were collected to calculate their dietary intakes of protein together with each amino acid daily based on the China Food Composition Tables (CFCT). Ordinal polytomous logistic regression was applied to examine the determinants of BMI values for lactating women. For all subjects, the concentration of plasma SEPP1 and milk Se of participants with insufficient Se intake were significantly associated with the dietary intake of serine and 2 SAAs (methionine and cystine), respectively (P < 0.05). No significant correlation was found between each amino acid related to the synthesis of endogenous serine and every biomarker of the Se nutrition status in subjects with an insufficient dietary protein intake (P > 0.05). The ordinal logistic regression analysis showed that dietary protein intake (ordinal OR 1.012, 95% CI = 0.004-0.020, P = 0.002) and plasma SEPP1 (ordinal OR 0.988, 95% CI = - 0.023 to - 0.001, P = 0.036) affected the BMI value together in these lactating women. In conclusion, dietary serine and SAAs were found to directly affect the nutritional status, and both high protein intake and low plasma SEPP1 might be the health risks in these lactating Chinese women.
Collapse
Affiliation(s)
- Feng Han
- Department of Nutrition and Metabolism, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Xicheng District, Beijing, 100050, China
| | - Xuehong Pang
- Department of Nutrition and Metabolism, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Xicheng District, Beijing, 100050, China
| | - Qin Wang
- Department of Nutrition and Metabolism, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Xicheng District, Beijing, 100050, China
| | - Yiqun Liu
- Department of Nutrition and Metabolism, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Xicheng District, Beijing, 100050, China
| | - Liping Liu
- Beijing Municipal Center for Disease Prevention and Control, Beijing, 100013, China
| | - Yingjuan Chai
- Maternal and Child Care Hospital of Xicheng district, Beijing, 100054, China
| | - Jie Zhang
- Center for Disease Control and Prevention of Enshi Autonomous Prefecture, Enshi, 445000, Hubei, China
| | - Shijin Wang
- Center for Disease Control and Prevention of Yi Autonomous Prefecture of Liangshan, Liangshan, 615000, Sichuan, China
| | - Jiaxi Lu
- Department of Nutrition and Metabolism, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Xicheng District, Beijing, 100050, China
| | - Licui Sun
- Department of Nutrition and Metabolism, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Xicheng District, Beijing, 100050, China
| | - Shuo Zhan
- Department of Nutrition and Metabolism, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Xicheng District, Beijing, 100050, China
| | - Hongying Wu
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Road, Jianghan District, Wuhan, 430022, Hubei, China.
| | - Zhenwu Huang
- Department of Nutrition and Metabolism, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Xicheng District, Beijing, 100050, China.
| |
Collapse
|
6
|
Mou D, Ding D, Li S, Yan H, Qin B, Li Z, Zhao L, Che L, Fang Z, Xu S, Lin Y, Zhuo Y, Li J, Huang C, Zou Y, Li L, Briens M, Wu D, Feng B. Effect of maternal organic selenium supplementation during pregnancy on sow reproductive performance and long-term effect on their progeny. J Anim Sci 2021; 98:5985967. [PMID: 33201223 DOI: 10.1093/jas/skaa366] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 11/12/2020] [Indexed: 01/23/2023] Open
Abstract
Selenium (Se) is an essential trace element for animals and exists in nature in both inorganic and organic forms. Although organic Se is more bioavailable than inorganic Se, there are inconsistent reports on the effect of organic Se on the reproductive performance of sows. This study was conducted to investigate the effect of maternal organic Se (2-hydroxy-4-methylselenobutanoic [HMSeBA]) supplementation on reproductive performance and antioxidant capacity of sows, and the long-term effect on the growth performance and antioxidant capacity of their offspring with or without lipopolysaccharide (LPS) challenge. The experimental design used in this study was a completely randomized design; 45 Landrace × Yorkshire sows were randomly allocated to receive one of the following three diets during gestation: control diet (Control, basal diet, n = 15), sodium selenite (Na2SeO3)-supplemented diet (Na2SeO3, basal diet + 0.3 mg Se/kg Na2SeO3, n = 15), and HMSeBA-supplemented diet (HMSeBA, basal diet + 0.3 mg Se/kg HMSeBA, n = 15). On day 21 of age, male offspring from each group were injected with LPS or saline (n = 6). As compared with the control group, maternal HMSeBA supplementation increased the number of total born piglets, while decreased birth weight (P < 0.05). In the first week of lactation, maternal HMSeBA supplementation increased litter weight gain compared with the Na2SeO3 group (P < 0.05) and increased the average daily gain of piglets compared with the control group and Na2SeO3 group (P < 0.05). Meanwhile, maternal HMSeBA supplementation decreased piglet birth interval as compared with the control group and Na2SeO3 group (P < 0.05). Besides, plasma glutathione peroxidase (GSH-Px) activity was higher in the HMSeBA group on farrowing 0 min and 90 min, while malondialdehyde (MDA) concentration was lower on farrowing 0, 90, and 135 min than those in the control group (P < 0.05). In addition, maternal HMSeBA supplementation increased the concentration of selenoprotein P (SELENOP) in colostrum compared with the control group (P < 0.05). Further study revealed that the LPS-challenged HMSeBA group had higher GSH-Px and total antioxidant capacity and lower MDA in weaning piglets compared with the LPS-challenged control group (P < 0.05). Taken together, maternal HMSeBA supplementation increased the number of total born piglets, shortened the duration of farrowing, improved the antioxidant capacities of sows and their offspring, and improved the growth performance of suckling pigs at the first week of lactation. Thus, HMSeBA supplementation during gestation has the potentiality to produce more kilogram of meat.
Collapse
Affiliation(s)
- Daolin Mou
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, People's Republic of China
| | - Dajiang Ding
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, People's Republic of China
| | - Shuang Li
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, People's Republic of China
| | - Hui Yan
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, People's Republic of China
| | - Binting Qin
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, People's Republic of China
| | - Zhen Li
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, People's Republic of China
| | - Lianpeng Zhao
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, People's Republic of China
| | - Lianqiang Che
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, People's Republic of China
| | - Zhengfeng Fang
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, People's Republic of China
| | - Shengyu Xu
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, People's Republic of China
| | - Yan Lin
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, People's Republic of China
| | - Yong Zhuo
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, People's Republic of China
| | - Jian Li
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, People's Republic of China
| | - Chao Huang
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, People's Republic of China
| | - Yuanfeng Zou
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, People's Republic of China
| | - Lixia Li
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, People's Republic of China
| | | | - De Wu
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, People's Republic of China
| | - Bin Feng
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, People's Republic of China
| |
Collapse
|
7
|
Arias-Borrego A, Callejón-Leblic B, Rodríguez-Moro G, Velasco I, Gómez-Ariza JL, García-Barrera T. A novel HPLC column switching method coupled to ICP-MS/QTOF for the first determination of selenoprotein P (SELENOP) in human breast milk. Food Chem 2020; 321:126692. [PMID: 32251923 DOI: 10.1016/j.foodchem.2020.126692] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 03/13/2020] [Accepted: 03/23/2020] [Indexed: 01/23/2023]
Abstract
In this work, we describe for the first time the presence of selenoprotein P in human breast milk. To this end, a novel analytical method has been developed based on a two-dimensional column switching system, which consisted of three size exclusion columns and one affinity column coupled to inductively coupled plasma mass spectrometry (ICP-MS). The method combines the accurate quantification of selenoproteins and selenometabolites by species unspecific isotopic dilution ICP-MS, with unequivocal identification by quadrupole-time-of-flight mass spectrometry. Several selenopeptides, which contain the amino acid selenocysteine (U, SeCys), were identified after tryptic digestion followed by their separation. The results reveal that the relative selenium concentration in colostrum follows the order: glutathione peroxidase (GPX) ≈ selenoprotein P (SELENOP) > selenocystamine (SeCA) > other selenometabolites (SeMB), in contrast with previously published papers (GPX > SeCA > selenocystine > selenomethionine). A mean concentration of 20.1 ± 1.0 ng Se g-1 as SELENOP (1.45 μg SELENOP/g) was determined in colostrum (31% of total selenium).
Collapse
Affiliation(s)
- A Arias-Borrego
- Research Center for Natural Resources, Health and The ENvironment (RENSMA), Department of Chemistry "Prof. J.C Vílchez Martín", University of Huelva, Fuerzas Armadas Ave., 21007 Huelva, Spain
| | - B Callejón-Leblic
- Research Center for Natural Resources, Health and The ENvironment (RENSMA), Department of Chemistry "Prof. J.C Vílchez Martín", University of Huelva, Fuerzas Armadas Ave., 21007 Huelva, Spain
| | - G Rodríguez-Moro
- Research Center for Natural Resources, Health and The ENvironment (RENSMA), Department of Chemistry "Prof. J.C Vílchez Martín", University of Huelva, Fuerzas Armadas Ave., 21007 Huelva, Spain
| | - I Velasco
- Pediatrics, Obstetrics & Gynecology Unit, Hospital de Riotinto, Avda la Esquila 5, 21.660 Minas de Riotinto, Huelva, Spain
| | - J L Gómez-Ariza
- Research Center for Natural Resources, Health and The ENvironment (RENSMA), Department of Chemistry "Prof. J.C Vílchez Martín", University of Huelva, Fuerzas Armadas Ave., 21007 Huelva, Spain.
| | - T García-Barrera
- Research Center for Natural Resources, Health and The ENvironment (RENSMA), Department of Chemistry "Prof. J.C Vílchez Martín", University of Huelva, Fuerzas Armadas Ave., 21007 Huelva, Spain.
| |
Collapse
|
8
|
Falk M, Bernhoft A, Reinoso-Maset E, Salbu B, Lebed P, Framstad T, Fuhrmann H, Oropeza-Moe M. Beneficial antioxidant status of piglets from sows fed selenomethionine compared with piglets from sows fed sodium selenite. J Trace Elem Med Biol 2020; 58:126439. [PMID: 31830704 DOI: 10.1016/j.jtemb.2019.126439] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 11/08/2019] [Accepted: 11/12/2019] [Indexed: 12/24/2022]
Abstract
BACKGROUND Studies in mammals proved dietary organic selenium (Se) being superior to inorganic Se regarding effects on growth performance, antioxidative status, immune response, and Se homeostasis. However, the picture of possible effects of different Se sources and - levels can be expanded. The present field study evaluated the effects on weight gain, hematological and selected biochemical variables as well as plasma concentrations of vitamin E (vitE), total Se and selenobiomolecules in piglets throughout the suckling period. METHODS Piglets were monitored from birth to 38 days of age (d). The mother sows' diets were enriched with l-selenomethionine (SeMet-0.26 and -0.43 mg Se/kg feed) or sodium selenite (NaSe-0.40 and -0.60 mg Se/kg feed) from 1 month prior to farrowing until the end of lactation period. Piglets received pelleted feed supplemented with Se similarly to the sows' diets from one week of age. Selenite at 0.40 mg Se/kg (NaSe-0.40) represents a common Se source and -level in pig feed and served as control diet. RESULTS From 24d, piglets in SeMet-groups had higher mean body weight (BW) compared with piglets from sows fed NaSe-0.40. Furthermore, from five-d and above, piglets from sows fed NaSe-0.60 had significantly higher BW than offspring from sows fed NaSe-0.40. Neonatal piglets in group SeMet-0.43 had significantly lower red blood cell counts (RBC), hemoglobin (Hgb) and hematocrit (Hct) concentrations compared with piglets from sows fed with NaSe-0.40. Neonatal and 5d-old piglets in group SeMet-0.26 showed higher gamma-glutamyl transferase activity than piglets in group NaSe-0.40. From five d and above, group NaSe-0.60 excelled with increased specific hematological variables culminating at age 38d with increased Hct, mean corpuscular volume (MCV), and MC hemoglobin (MCH) as well as increased activities of aspartate transaminase and lactate dehydrogenase compared with the other groups. Generally, offspring in the SeMet groups had higher total Se-concentrations in plasma than those from sows fed selenite, and showed a dose-response effect on plasma Se-concentrations. Furthermore, SeMet-fed piglets had higher plasma levels of the selenoproteins (Sel) glutathione peroxidase 3 (GPx3) and SelP as well as selenoalbumin. Plasma vitE levels were significantly negatively correlated with RBC throughout trial period. CONCLUSIONS Maternal supplementation with SeMet during gestation influenced hematology and clinical biochemistry in neonatal piglets in a different way than in offspring from sows receiving selenite enriched diets. Growth performance was positively influenced by both dietary Se source and Se level. Higher plasma levels of GPx3 observed in piglets receiving SeMet probably improved the protection against birth or growth related oxidative stress. These might prime the piglets for demanding situations as indicated by higher weight gain in offspring from sows fed with SeMet-supplemented diets. Our results on some enzyme activities might indicate that piglets fed NaSe-0.60 had to cope with increased levels of oxidative stress compared with those originating from sows fed SeMet or lower dietary levels of selenite. We assume that combining inorganic and organic Se sources in complete feed for breeding sows might be beneficial fro reproduction and the offspring's performance.
Collapse
Affiliation(s)
- M Falk
- Department of Production Animal Clinical Sciences, Norwegian University of Life Sciences, 4325, Sandnes, Norway.
| | - A Bernhoft
- Norwegian Veterinary Institute, 0454, Oslo, Norway
| | - Estela Reinoso-Maset
- Faculty of Environmental Sciences and Natural Resource Management (MINA)/Centre for Environmental Radioactivity (CERAD) CoE, Norwegian University of Life Sciences (NMBU), 1433Ås, Norway
| | - B Salbu
- Faculty of Environmental Sciences and Natural Resource Management (MINA)/Centre for Environmental Radioactivity (CERAD) CoE, Norwegian University of Life Sciences (NMBU), 1433Ås, Norway
| | - P Lebed
- Faculty of Environmental Sciences and Natural Resource Management (MINA)/Centre for Environmental Radioactivity (CERAD) CoE, Norwegian University of Life Sciences (NMBU), 1433Ås, Norway
| | - T Framstad
- Department of Production Animal Clinical Sciences, Norwegian University of Life Sciences, 0454, Oslo, Norway
| | - H Fuhrmann
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, University of Leipzig, 04103, Leipzig, Germany
| | - Marianne Oropeza-Moe
- Department of Production Animal Clinical Sciences, Norwegian University of Life Sciences, 4325, Sandnes, Norway
| |
Collapse
|
9
|
Saito Y. Selenoprotein P as an in vivo redox regulator: disorders related to its deficiency and excess. J Clin Biochem Nutr 2019; 66:1-7. [PMID: 32001950 PMCID: PMC6983434 DOI: 10.3164/jcbn.19-31] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 09/19/2019] [Indexed: 01/08/2023] Open
Abstract
Selenoprotein P (encoded by SELENOP) contains the essential trace element selenium in the form of selenocysteine, which is an analog of cysteine that contains selenium instead of sulfur. Selenoprotein P is a major selenium-containing protein in human plasma and is mainly synthesized in the liver. It functions as a selenium-transporter to maintain antioxidative selenoenzymes in several tissues, such as the brain and testis, and plays a pivotal role in selenium-metabolism and antioxidative defense. A decrease of selenoprotein P and selenoproteins causes various dysfunctions related to oxidative stress. On the other hand, recent studies indicate that excess selenoprotein P exacerbates glucose metabolism and promotes type 2 diabetes. This review focuses on the biological functions of selenoprotein P, particularly its role in selenium-metabolism and antioxidative defense. Furthermore, the effects of excess selenoprotein P on glucose metabolism, and resulting diseases are described. The development of a therapeutic agent that targets excess selenoprotein P is discussed.
Collapse
Affiliation(s)
- Yoshiro Saito
- Laboratory of Molecular Biology and Metabolism, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3, Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| |
Collapse
|
10
|
Surai PF, Kochish II, Fisinin VI, Juniper DT. Revisiting Oxidative Stress and the Use of Organic Selenium in Dairy Cow Nutrition. Animals (Basel) 2019; 9:E462. [PMID: 31331084 PMCID: PMC6680431 DOI: 10.3390/ani9070462] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 07/16/2019] [Accepted: 07/16/2019] [Indexed: 02/07/2023] Open
Abstract
In commercial animals production, productive stress can negatively impact health status and subsequent productive and reproductive performance. A great body of evidence has demonstrated that as a consequence of productive stress, an overproduction of free radicals, disturbance of redox balance/signaling, and oxidative stress were observed. There is a range of antioxidants that can be supplied with animal feed to help build and maintain the antioxidant defense system of the body responsible for prevention of the damaging effects of free radicals and the toxic products of their metabolism. Among feed-derived antioxidants, selenium (Se) was shown to have a special place as an essential part of 25 selenoproteins identified in animals. There is a comprehensive body of research in monogastric species that clearly shows that Se bioavailability within the diet is very much dependent on the form of the element used. Organic Se, in the form of selenomethionine (SeMet), has been reported to be a much more effective Se source when compared with mineral forms such as sodium selenite or selenate. It has been proposed that one of the main advantages of organic Se in pig and poultry nutrition is the non-specific incorporation of SeMet into general body proteins, thus forming an endogenous Se reserve that can be utilized during periods of stress for additional synthesis of selenoproteins. Responses in ruminant species to supplementary Se tend to be much more variable than those reported in monogastric species, and much of this variability may be a consequence of the different fates of Se forms in the rumen following ingestion. It is likely that the reducing conditions found in the rumen are responsible for the markedly lower assimilation of inorganic forms of Se, thus predisposing selenite-fed animals to potential Se inadequacy that may in turn compromise animal health and production. A growing body of evidence demonstrates that organic Se has a number of benefits, particularly in dairy and beef animals; these include improved Se and antioxidant status and better Se transfer via the placenta, colostrum, and milk to the newborn. However, there is a paucity in the data concerning molecular mechanisms of SeMet assimilation, metabolism and selenoprotein synthesis regulation in ruminant animals, and as such, further investigation is required.
Collapse
Affiliation(s)
- Peter F Surai
- Department of Microbiology and Biochemistry, Faculty of Veterinary Medicine, Trakia University, 6000 Stara Zagora, Bulgaria.
- Moscow State Academy of Veterinary Medicine and Biotechnology Named after K.I. Skryabin, 109472 Moscow, Russia.
- Department of Animal Nutrition, Faculty of Agricultural and Environmental Sciences, Szent Istvan University, H-2103 Godollo, Hungary.
| | - Ivan I Kochish
- Moscow State Academy of Veterinary Medicine and Biotechnology Named after K.I. Skryabin, 109472 Moscow, Russia
| | - Vladimir I Fisinin
- All-Russian Institute of Poultry Husbandry, 141311 Sergiev Posad, Russia
| | - Darren T Juniper
- Animal, Dairy, Food Chain Sciences, School of Agriculture, Policy and Development, University of Reading, Earley Gate, Reading RG6 6AR, UK
| |
Collapse
|
11
|
Juniper DT, Rymer C, Briens M. Bioefficacy of hydroxy-selenomethionine as a selenium supplement in pregnant dairy heifers and on the selenium status of their calves. J Dairy Sci 2019; 102:7000-7010. [PMID: 31155245 DOI: 10.3168/jds.2018-16065] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 03/25/2019] [Indexed: 12/14/2022]
Abstract
This study aimed to determine the effects of supplementing pregnant heifers with the organic selenium (Se) source 2-hydroxy-4-methylselenobutanoic acid (HMSeBA) during the last 8 wk of pregnancy on dam and calf Se status. A total of 42 in-calf heifers were recruited to the study and randomly allocated to 1 of 3 treatments; a negative control (Con), sodium selenite (NaSe), or HMSeBA. Animals were blocked by body weight, body condition score, and expected calving date before treatment allocation. Following enrollment, all animals underwent a 7-wk wash-out period, after which they received their respective supplements, top-dressed daily onto a basal diet for the last 8 wk of pregnancy. Heifer blood samples were taken at weekly intervals from enrollment until 2 wk before expected calving date and as soon as possible after calving for determination of whole-blood glutathione peroxidase activity (GSH-Px) and plasma Se and malondialdehyde (MDA) concentrations. Selenized AA were determined in plasma samples taken at 3 wk precalving. A colostrum sample was taken as close to parturition as possible for determination of colostrum total Se, selenized AA, and IgG concentration. Calves were blood sampled as close to birth as possible for determination of whole-blood GSH-Px activity and plasma Se and MDA concentrations. Differences in whole-blood GSH-Px activity did not become apparent until calving; GSH-Px activity was lowest in Con heifers but similar between NaSe and HMSeBA heifers. Plasma Se was lowest in unsupplemented heifers and greatest in those supplemented with HMSeBA; this was attributable to greater selenomethionine concentrations in the plasma of HMSeBA heifers. Colostrum Se was lowest in Con heifers and greatest in HMSeBA heifers. The greater Se concentration of HMSeBA heifers was attributable to a greater proportion of total Se comprising selenocysteine; the reason for this is not known. There was no effect of supplementation on colostrum IgG concentration. Plasma Se was lowest in calves born to Con heifers and greatest in those born to HMSeBA heifers. There were no effects of treatment on calf whole-blood GSH-Px activity or plasma MDA concentration. The enhanced Se status associated with HMSeBA supplementation is likely a consequence of selenomethionine supply and may confer benefits to both the dam and her calf postpartum.
Collapse
Affiliation(s)
- D T Juniper
- School of Agriculture, Policy and Development, University of Reading, Reading, RG6 6AR, United Kingdom.
| | - C Rymer
- School of Agriculture, Policy and Development, University of Reading, Reading, RG6 6AR, United Kingdom
| | - M Briens
- Adisseo France S.A.S., Centre of Excellence and Research in Nutrition, 6 Route Noire, 03600 Commentry, France
| |
Collapse
|
12
|
Falk M, Lebed P, Bernhoft A, Framstad T, Kristoffersen AB, Salbu B, Oropeza-Moe M. Effects of sodium selenite and L-selenomethionine on feed intake, clinically relevant blood parameters and selenium species in plasma, colostrum and milk from high-yielding sows. J Trace Elem Med Biol 2019; 52:176-185. [PMID: 30732879 DOI: 10.1016/j.jtemb.2018.12.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 11/29/2018] [Accepted: 12/14/2018] [Indexed: 12/18/2022]
Abstract
A field study in periparturient sows fed different dietary concentrations of either sodium selenite or L-selenomethionine (SeMet) was conducted to evaluate feed intake, haematological and biochemical parameters as well as to describe some key selenium (Se) species, namely selenoprotein P (SelP), selenoalbumin (SeAlb) and selenomethionine (SeMet) as well as total Se in plasma, colostrum and milk. Thirty-two sows were allotted to four treatments from 30 days (d) prepartum throughout on average a 32 d lactation period. Sodium selenite supplemented diets contained 0.40 and 0.60 mg Se/kg feed, while SeMet supplemented feed contained 0.26 and 0.43 mg Se/kg feed. Concentrations of sodium selenite and SeMet in complete feed exceeded the upper limits for total dietary Se and added organic Se, respectively, according to the European Union legislation. Blood samples were collected at initiation of the study, at farrowing and at weaning. Colostrum samples were collected at farrowing and milk samples at weaning. Se species were subjected to liquid chromatography, and total Se and Se species were determined using inductively coupled plasma mass spectrometry. The SeMet supplemented diets resulted in higher feed intake and in higher levels of total Se, SelP, SeAlb and SeMet in colostrum compared with sows fed sodium selenite. Similar results were obtained for levels of total Se and SeMet in milk at weaning. The higher dietary sodium selenite concentration in sows' feed did not increase the Se transfer into colostrum or milk when compared with those receiving the lower level of sodium selenite. However, the increase in serum-Zn from initiation until farrowing, observed in sows fed SeMet as well as the higher glutamate dehydrogenase activity in sodium selenite supplemented sows in this period might indicate a higher requirement of antioxidant defence in sodium selenite-supplemented sows. To our knowledge, the present data on Se species in plasma, colostrum and milk of sows represent the most complete investigation of Se in sows conducted to date. A higher amount of the above-mentioned Se species in the colostrum of sows supplemented with SeMet might strengthen the piglets' antioxidative system and passive immunity as well as improve their average daily weight gain. The higher feed intake in sows fed diets supplemented with SeMet is an interesting finding that warrants further investigation.
Collapse
Affiliation(s)
- Michaela Falk
- Norwegian Veterinary Institute, Kyrkjevegen 332/334, NO-4325, Sandnes, Norway; Department of Production Animal Clinical Sciences, Faculty of Veterinary Medicine, NMBU, Kyrkjevegen 332/334, NO-4325, Sandnes, Norway.
| | - Pablo Lebed
- Faculty of Environmental Sciences and Nature Resource Management (MINA)/Centre for Environmental Radioactivity (CERAD) CoE, Ås, Norwegian University of Life Sciences (NMBU), P.O. Box 5003, NO-1432, Ås, Norway.
| | - Aksel Bernhoft
- Norwegian Veterinary Institute, P.O. Box 750, Sentrum, NO-0106, Oslo, Norway.
| | - Tore Framstad
- Department of Production Animal Clinical Sciences, Faculty of Veterinary Medicine, Campus Adamstuen, NMBU, P.O. Box 8146 Dep., NO-0033, Oslo, Norway.
| | | | - Brit Salbu
- Faculty of Environmental Sciences and Nature Resource Management (MINA)/Centre for Environmental Radioactivity (CERAD) CoE, Ås, Norwegian University of Life Sciences (NMBU), P.O. Box 5003, NO-1432, Ås, Norway.
| | - Marianne Oropeza-Moe
- Department of Production Animal Clinical Sciences, Faculty of Veterinary Medicine, NMBU, Kyrkjevegen 332/334, NO-4325, Sandnes, Norway.
| |
Collapse
|
13
|
Pulido E, Fernández M, Prieto N, Baldwin RL, Andrés S, López S, Giráldez FJ. Effect of milking frequency and α-tocopherol plus selenium supplementation on sheep milk lipid composition and oxidative stability. J Dairy Sci 2019; 102:3097-3109. [PMID: 30772021 DOI: 10.3168/jds.2018-15456] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 12/17/2018] [Indexed: 01/06/2023]
Abstract
The aim of this research was to study the effect of milking frequency [once-daily milking (ODM) vs. twice-daily milking (TDM)] and antioxidant (AOX) supplementation on fatty acid (FA) profile and oxidative stability in sheep milk. Sixteen Assaf ewes were used; 8 did not receive any vitamin-mineral supplement (control), and the other 8 received an oral dose of 1,000 IU of α-tocopherol and 0.4 mg of Se daily. The experiment consisted of 2 consecutive periods; the first was 3 wk with TDM of both mammary glands. The second period was 8 wk and consisted of ODM of one mammary gland and TDM of the other gland. All ewes were fed ad libitum the same total mixed ration from lambing and throughout the experiment. There were no differences in plasma or milk Se concentrations between control and AOX ewes. However, plasma and milk α-tocopherol concentrations and AOX capacity were increased in ewes receiving the AOX supplement. Milk FA profile was practically unaffected after 21 d of AOX supplementation. However, after 77 d, AOX supplementation increased the relative percentage of C16:0 and cis-9 C18:1 and reduced the proportions of some saturated FA with less than 16 carbons and cis-9 C12:1. Antioxidant supplementation had no effect on the proportions of conjugated linoleic acid or total polyunsaturated FA (PUFA) but decreased the proportion of trans-7,cis-9 C18:2 and increased that of n-6 C20:3. Once-daily milking did not affect α-tocopherol, Se, or fat resistance to oxidation in milk. Total monounsaturated FA, cis-9 C16:1, and several cis and trans isomers of C18:1 were increased and total saturated FA were decreased in milk from ODM glands. Compared with TDM, ODM increased the proportions of cis-9,cis-12 C18:2 and several isomers of C18:2 and reduced those of cis-9,cis-12,cis-15 C18:3 and some PUFA of 20 and 22 carbons, but total proportion of PUFA was unaffected. Once-daily milking and AOX supplementation modified milk FA profile, but the effects of ODM could be considered of little biological relevance for consumer health. Supplementing ewes with α-tocopherol plus Se could be considered an effective strategy to improve plasma AOX status and reduce milk fat oxidation without substantial changes in the milk FA profile.
Collapse
Affiliation(s)
- E Pulido
- Instituto de Ganadería de Montaña, CSIC-Universidad de León, Finca Marzanas s/n, 24346 Grulleros, León, Spain
| | - M Fernández
- Instituto de Ganadería de Montaña, CSIC-Universidad de León, Finca Marzanas s/n, 24346 Grulleros, León, Spain
| | - N Prieto
- Lacombe Research and Development Centre, Agriculture and Agri-Food Canada, 6000 C&E Trail, Lacombe, Alberta, T4L 1W1, Canada
| | - R L Baldwin
- Animal Genomics and Improvement Laboratory, USDA Agricultural Research Service, Beltsville, MD 20705
| | - S Andrés
- Instituto de Ganadería de Montaña, CSIC-Universidad de León, Finca Marzanas s/n, 24346 Grulleros, León, Spain
| | - S López
- Instituto de Ganadería de Montaña, CSIC-Universidad de León, Finca Marzanas s/n, 24346 Grulleros, León, Spain
| | - F J Giráldez
- Instituto de Ganadería de Montaña, CSIC-Universidad de León, Finca Marzanas s/n, 24346 Grulleros, León, Spain.
| |
Collapse
|
14
|
Lei XG, Zhu JH, Cheng WH, Bao Y, Ho YS, Reddi AR, Holmgren A, Arnér ESJ. Paradoxical Roles of Antioxidant Enzymes: Basic Mechanisms and Health Implications. Physiol Rev 2016; 96:307-64. [PMID: 26681794 DOI: 10.1152/physrev.00010.2014] [Citation(s) in RCA: 239] [Impact Index Per Article: 29.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Reactive oxygen species (ROS) and reactive nitrogen species (RNS) are generated from aerobic metabolism, as a result of accidental electron leakage as well as regulated enzymatic processes. Because ROS/RNS can induce oxidative injury and act in redox signaling, enzymes metabolizing them will inherently promote either health or disease, depending on the physiological context. It is thus misleading to consider conventionally called antioxidant enzymes to be largely, if not exclusively, health protective. Because such a notion is nonetheless common, we herein attempt to rationalize why this simplistic view should be avoided. First we give an updated summary of physiological phenotypes triggered in mouse models of overexpression or knockout of major antioxidant enzymes. Subsequently, we focus on a series of striking cases that demonstrate "paradoxical" outcomes, i.e., increased fitness upon deletion of antioxidant enzymes or disease triggered by their overexpression. We elaborate mechanisms by which these phenotypes are mediated via chemical, biological, and metabolic interactions of the antioxidant enzymes with their substrates, downstream events, and cellular context. Furthermore, we propose that novel treatments of antioxidant enzyme-related human diseases may be enabled by deliberate targeting of dual roles of the pertaining enzymes. We also discuss the potential of "antioxidant" nutrients and phytochemicals, via regulating the expression or function of antioxidant enzymes, in preventing, treating, or aggravating chronic diseases. We conclude that "paradoxical" roles of antioxidant enzymes in physiology, health, and disease derive from sophisticated molecular mechanisms of redox biology and metabolic homeostasis. Simply viewing antioxidant enzymes as always being beneficial is not only conceptually misleading but also clinically hazardous if such notions underpin medical treatment protocols based on modulation of redox pathways.
Collapse
Affiliation(s)
- Xin Gen Lei
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing,China; Department of Animal Science, Cornell University, Ithaca, New York; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, Mississippi; Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, Norfolk, United Kingdom; Institute of Environmental Health Sciences, Wayne State University, Detroit, Michigan; Georgia Institute of Technology, School of Chemistry and Biochemistry, Parker Petit Institute for Bioengineering and Biosciences, Atlanta, Georgia; and Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Jian-Hong Zhu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing,China; Department of Animal Science, Cornell University, Ithaca, New York; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, Mississippi; Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, Norfolk, United Kingdom; Institute of Environmental Health Sciences, Wayne State University, Detroit, Michigan; Georgia Institute of Technology, School of Chemistry and Biochemistry, Parker Petit Institute for Bioengineering and Biosciences, Atlanta, Georgia; and Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Wen-Hsing Cheng
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing,China; Department of Animal Science, Cornell University, Ithaca, New York; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, Mississippi; Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, Norfolk, United Kingdom; Institute of Environmental Health Sciences, Wayne State University, Detroit, Michigan; Georgia Institute of Technology, School of Chemistry and Biochemistry, Parker Petit Institute for Bioengineering and Biosciences, Atlanta, Georgia; and Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Yongping Bao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing,China; Department of Animal Science, Cornell University, Ithaca, New York; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, Mississippi; Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, Norfolk, United Kingdom; Institute of Environmental Health Sciences, Wayne State University, Detroit, Michigan; Georgia Institute of Technology, School of Chemistry and Biochemistry, Parker Petit Institute for Bioengineering and Biosciences, Atlanta, Georgia; and Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Ye-Shih Ho
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing,China; Department of Animal Science, Cornell University, Ithaca, New York; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, Mississippi; Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, Norfolk, United Kingdom; Institute of Environmental Health Sciences, Wayne State University, Detroit, Michigan; Georgia Institute of Technology, School of Chemistry and Biochemistry, Parker Petit Institute for Bioengineering and Biosciences, Atlanta, Georgia; and Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Amit R Reddi
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing,China; Department of Animal Science, Cornell University, Ithaca, New York; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, Mississippi; Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, Norfolk, United Kingdom; Institute of Environmental Health Sciences, Wayne State University, Detroit, Michigan; Georgia Institute of Technology, School of Chemistry and Biochemistry, Parker Petit Institute for Bioengineering and Biosciences, Atlanta, Georgia; and Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Arne Holmgren
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing,China; Department of Animal Science, Cornell University, Ithaca, New York; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, Mississippi; Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, Norfolk, United Kingdom; Institute of Environmental Health Sciences, Wayne State University, Detroit, Michigan; Georgia Institute of Technology, School of Chemistry and Biochemistry, Parker Petit Institute for Bioengineering and Biosciences, Atlanta, Georgia; and Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Elias S J Arnér
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing,China; Department of Animal Science, Cornell University, Ithaca, New York; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, Mississippi; Department of Nutrition, Norwich Medical School, University of East Anglia, Norwich, Norfolk, United Kingdom; Institute of Environmental Health Sciences, Wayne State University, Detroit, Michigan; Georgia Institute of Technology, School of Chemistry and Biochemistry, Parker Petit Institute for Bioengineering and Biosciences, Atlanta, Georgia; and Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| |
Collapse
|
15
|
Zhang ZH, Chen C, Wu QY, Zheng R, Liu Q, Ni JZ, Hoffmann PR, Song GL. Selenomethionine reduces the deposition of beta-amyloid plaques by modulating β-secretase and enhancing selenoenzymatic activity in a mouse model of Alzheimer's disease. Metallomics 2016; 8:782-9. [DOI: 10.1039/c6mt00117c] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Effects on Aβ production and the probable connection among selenoenzymes, GSK3β and Aβ pathology by selenomethionine treatment in AD mice.
Collapse
Affiliation(s)
- Zhong-Hao Zhang
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- University of Chinese Academy of Sciences
- Changchun, China
| | - Chen Chen
- Shenzhen Key Laboratory of Marine Bioresources and Ecology
- College of Life Sciences and Oceanography
- Shenzhen University
- Shenzhen, China
| | - Qiu-Yan Wu
- Shenzhen Key Laboratory of Marine Bioresources and Ecology
- College of Life Sciences and Oceanography
- Shenzhen University
- Shenzhen, China
| | - Rui Zheng
- Shenzhen Key Laboratory of Marine Bioresources and Ecology
- College of Life Sciences and Oceanography
- Shenzhen University
- Shenzhen, China
| | - Qiong Liu
- Shenzhen Key Laboratory of Marine Bioresources and Ecology
- College of Life Sciences and Oceanography
- Shenzhen University
- Shenzhen, China
| | - Jia-Zuan Ni
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- University of Chinese Academy of Sciences
- Changchun, China
- Shenzhen Key Laboratory of Marine Bioresources and Ecology
| | - Peter R. Hoffmann
- Department of Cell and Molecular Biology
- John A. Burns School of Medicine
- University of Hawaii
- Honolulu, USA
| | - Guo-Li Song
- Shenzhen Key Laboratory of Marine Bioresources and Ecology
- College of Life Sciences and Oceanography
- Shenzhen University
- Shenzhen, China
| |
Collapse
|
16
|
Abstract
Selenium is regulated in the body to maintain vital selenoproteins and to avoid toxicity. When selenium is limiting, cells utilize it to synthesize the selenoproteins most important to them, creating a selenoprotein hierarchy in the cell. The liver is the central organ for selenium regulation and produces excretory selenium forms to regulate whole-body selenium. It responds to selenium deficiency by curtailing excretion and secreting selenoprotein P (Sepp1) into the plasma at the expense of its intracellular selenoproteins. Plasma Sepp1 is distributed to tissues in relation to their expression of the Sepp1 receptor apolipoprotein E receptor-2, creating a tissue selenium hierarchy. N-terminal Sepp1 forms are taken up in the renal proximal tubule by another receptor, megalin. Thus, the regulated whole-body pool of selenium is shifted to needy cells and then to vital selenoproteins in them to supply selenium where it is needed, creating a whole-body selenoprotein hierarchy.
Collapse
Affiliation(s)
- Raymond F Burk
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-0252; ,
| | | |
Collapse
|