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Yin X, Zhao M, Zhou Y, Yang H, Liao Y, Wang F. Optimized methyl donor and reduced precursor degradation pathway for seleno-methylselenocysteine production in Bacillus subtilis. Microb Cell Fact 2023; 22:215. [PMID: 37853389 PMCID: PMC10585787 DOI: 10.1186/s12934-023-02203-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 09/08/2023] [Indexed: 10/20/2023] Open
Abstract
BACKGROUND Seleno-methylselenocysteine (SeMCys) is an effective component of selenium supplementation with anti-carcinogenic potential that can ameliorate neuropathology and cognitive deficits. In a previous study, a SeMCys producing strain of Bacillus subtilis GBACB was generated by releasing feedback inhibition by overexpression of cysteine-insensitive serine O-acetyltransferase, enhancing the synthesis of S-adenosylmethionine as methyl donor by overexpression of S-adenosylmethionine synthetase, and expressing heterologous selenocysteine methyltransferase. In this study, we aimed to improve GBACB SeMCys production by synthesizing methylmethionine as a donor to methylate selenocysteine and by inhibiting the precursor degradation pathway. RESULTS First, the performance of three methionine S-methyltransferases that provide methylmethionine as a methyl donor for SeMCys production was determined. Integration of the NmMmt gene into GBACB improved SeMCys production from 20.7 to 687.4 μg/L. Next, the major routes for the degradation of selenocysteine, which is the precursor of SeMCys, were revealed by comparing selenocysteine hyper-accumulating and non-producing strains at the transcriptional level. The iscSB knockout strain doubled SeMCys production. Moreover, deleting sdaA, which is responsible for the degradation of serine as a precursor of selenocysteine, enhanced SeMCys production to 4120.3 μg/L. Finally, the culture conditions in the flasks were optimized. The strain was tolerant to higher selenite content in the liquid medium and the titer of SeMCys reached 7.5 mg/L. CONCLUSIONS The significance of methylmethionine as a methyl donor for SeMCys production in B. subtilis is reported, and enhanced precursor supply facilitates SeMCys synthesis. The results represent the highest SeMCys production to date and provide insight into Se metabolism.
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Affiliation(s)
- Xian Yin
- Key Laboratory of Geriatric Nutrition and Health (Ministry of Education), Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China
- China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China
- School of Light Industry, Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China
| | - Meiyi Zhao
- Key Laboratory of Geriatric Nutrition and Health (Ministry of Education), Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China
- School of Light Industry, Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China
| | - Yu Zhou
- Key Laboratory of Geriatric Nutrition and Health (Ministry of Education), Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China
- School of Light Industry, Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China
| | - Hulin Yang
- Key Laboratory of Geriatric Nutrition and Health (Ministry of Education), Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China
- School of Light Industry, Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China
| | - Yonghong Liao
- Key Laboratory of Geriatric Nutrition and Health (Ministry of Education), Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China.
- China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China.
- School of Light Industry, Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China.
| | - Fenghuan Wang
- Key Laboratory of Geriatric Nutrition and Health (Ministry of Education), Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China.
- China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China.
- School of Light Industry, Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China.
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Forde S, Vozza G, Brayden DJ, Byrne HJ, Frías JM, Ryan SM. Evaluation of Selenomethionine Entrapped in Nanoparticles for Oral Supplementation Using In Vitro, Ex Vivo and In Vivo Models. Molecules 2023; 28:molecules28072941. [PMID: 37049704 PMCID: PMC10095941 DOI: 10.3390/molecules28072941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/20/2023] [Accepted: 03/21/2023] [Indexed: 03/29/2023] Open
Abstract
Selenium methionine (SeMet) is an essential micronutrient required for normal body function and is associated with additional health benefits. However, oral administration of SeMet can be challenging due to its purported narrow therapeutic index, low oral bioavailability, and high susceptibility to oxidation. To address these issues, SeMet was entrapped in zein-coated nanoparticles made from chitosan using an ionic gelation formulation. The high stability of both the SeMet and selenomethionine nanoparticles (SeMet-NPs) was established using cultured human intestinal and liver epithelial cells, rat liver homogenates, and rat intestinal homogenates and lumen washes. Minimal cytotoxicity to Caco-2 and HepG2 cells was observed for SeMet and SeMet-NPs. Antioxidant properties of SeMet were revealed using a Reactive Oxygen Species (ROS) assay, based on the observation of a concentration-dependent reduction in the build-up of peroxides, hydroxides and hydroxyl radicals in Caco-2 cells exposed to SeMet (6.25–100 μM). The basal apparent permeability coefficient (Papp) of SeMet across isolated rat jejunal mucosae mounted in Ussing chambers was low, but the Papp was increased when presented in NP. SeMet had minimal effects on the electrogenic ion secretion of rat jejunal and colonic mucosae in Ussing chambers. Intra-jejunal injections of SeMet-NPs to rats yielded increased plasma levels of SeMet after 3 h for the SeMet-NPs compared to free SeMet. Overall, there is potential to further develop SeMet-NPs for oral supplementation due to the increased intestinal permeability, versus free SeMet, and the low potential for toxicity.
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Affiliation(s)
- Shane Forde
- UCD School of Veterinary Medicine, UCD Conway Institute, University College Dublin, Belfield, D04 V1W8 Dublin, Ireland
| | - Giulianna Vozza
- Environmental Science and Health Institute, Technological University Dublin, Grangegorman, D07 EWV4 Dublin, Ireland
- FOCAS Research Institute, Technological University Dublin, Camden Row, Dublin 8, D08 CKP1 Dublin, Ireland
| | - David J. Brayden
- UCD School of Veterinary Medicine, UCD Conway Institute, University College Dublin, Belfield, D04 V1W8 Dublin, Ireland
| | - Hugh J. Byrne
- FOCAS Research Institute, Technological University Dublin, Camden Row, Dublin 8, D08 CKP1 Dublin, Ireland
| | - Jesus M. Frías
- Environmental Science and Health Institute, Technological University Dublin, Grangegorman, D07 EWV4 Dublin, Ireland
| | - Sinéad M. Ryan
- UCD School of Veterinary Medicine, UCD Conway Institute, University College Dublin, Belfield, D04 V1W8 Dublin, Ireland
- Correspondence: ; Tel.: +353-1-7166215
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Yin X, Zhou Y, Yang H, Liao Y, Ma T, Wang F. Enhanced selenocysteine biosynthesis for seleno-methylselenocysteine production in Bacillus subtilis. Appl Microbiol Biotechnol 2023; 107:2843-2854. [PMID: 36941436 DOI: 10.1007/s00253-023-12482-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 02/10/2023] [Accepted: 03/12/2023] [Indexed: 03/23/2023]
Abstract
Seleno-methylselenocysteine (SeMCys) is an effective component for selenium supplementation with anti-carcinogenic potential and can ameliorate neuropathology and cognitive deficits. In this study, we aimed to engineer Bacillus subtilis 168 for the microbial production of SeMCys. First, the accumulation of intracellular selenocysteine (SeCys) as the precursor of SeMCys was enhanced through overexpression of serine O-acetyltransferase, which was desensitized against feedback inhibition by cysteine. Next, the S-adenosylmethionine (SAM) synthetic pathway was optimized to improve methyl donor availability through expression of S-adenosylmethionine synthetase. Further, SeMCys was successfully produced through expression of the selenocysteine methyltransferase in SeCys and SAM-producing strain. The increased expression level of selenocysteine methyltransferase benefited the SeMCys production. Finally, all the heterologous genes were integrated into the genome of B. subtilis, and the strain produced SeMCys at a titer of 18.4 μg/L in fed-batch culture. This is the first report on the metabolic engineering of B. subtilis for microbial production of SeMCys and provides a good starting point for future pathway engineering to achieve the industrial-grade production of SeMCys. KEY POINTS: • Expression of the feedback-insensitive serine O-acetyltransferase provided B. subtilis the ability of accumulating SeCys. • SAM production was enhanced through expressing S-adenosylmethionine synthetase in B. subtilis. • Expression of selenocysteine methyltransferase in SeCys and SAM-accumulating strain facilitated SeMCys production.
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Affiliation(s)
- Xian Yin
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China
- School of Light Industry, Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China
| | - Yu Zhou
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China
- School of Light Industry, Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China
| | - Hulin Yang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China
- School of Light Industry, Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China
| | - Yonghong Liao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China
- School of Light Industry, Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China
| | - Tengbo Ma
- Biological Defense Department, Institute of Chemical Defence, Zhongxin RD 1, Beijing, 102205, China
| | - Fenghuan Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China.
- School of Light Industry, Beijing Technology and Business University, Fucheng RD 11, Beijing, 100048, China.
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Alcântara DB, Riceli P, Almeida ADS, Luz LR, Nascimento HO, Fernandes TSM, Dionísio AP, Castro ACR, Nascimento RF, Lopes GS, Zocolo GJ. Development, Optimization, and Validation of an Ultrasound-Assisted Liquid–Liquid Microextraction (UALLME) for Selenomethionine Analyses in Cashew Nut (Anacardium occidentale) by Ultra-Performance Liquid Chromatography Coupled to Electrospray Ionization/Single Quadrupole Mass Spectrometer (UPLC-ESI/QDa). FOOD ANAL METHOD 2022. [DOI: 10.1007/s12161-022-02355-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Han X, Liu F, Zhang Q, Mao B, Tang X, Huang J, Guo R, Zhao J, Zhang H, Cui S, Chen W. Effects of Zn-Enriched Bifidobacterium longum on the Growth and Reproduction of Rats. Nutrients 2022; 14:nu14040783. [PMID: 35215433 PMCID: PMC8878668 DOI: 10.3390/nu14040783] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 02/08/2022] [Accepted: 02/10/2022] [Indexed: 01/21/2023] Open
Abstract
Zn is an essential trace element required for maintaining normal growth and development. Zn deficiency can cause growth retardation and reproductive system dysplasia, while Zn supplementation for treating Zn deficiency requires the use of high-quality Zn preparations. In this study, Bifidobacterium longum CCFM1195 was screened for its high Zn enrichment capacity, and the effects of different Zn supplementation regimens and doses on the growth and development of rats after Zn supplementation were investigated by supplementing Zn-deficient rat pups with different doses of various Zn supplements (ZnO, CCFM1195 + ZnO, and Zn-enriched CCFM1195). It was shown that the bioavailability of Zn was positively correlated with indicators of recovery after Zn supplementation, with Zn-enriched CCFM1195 having the best effect, followed by CCFM1195 + ZnO, while ZnO had the worst effect. Significant differences were also observed between the gut microbiota of control, model, and Zn-supplemented rats. Overall, administration of Zn-enriched CCFM1195 was more effective than the other approaches in restoring physical indicators of Zn deficiency after Zn supplementation, and this advantage was more significant at low-dose Zn supplementation.
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Affiliation(s)
- Xinran Han
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (X.H.); (F.L.); (Q.Z.); (B.M.); (X.T.); (J.Z.); (H.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Fei Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (X.H.); (F.L.); (Q.Z.); (B.M.); (X.T.); (J.Z.); (H.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Qiuxiang Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (X.H.); (F.L.); (Q.Z.); (B.M.); (X.T.); (J.Z.); (H.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Bingyong Mao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (X.H.); (F.L.); (Q.Z.); (B.M.); (X.T.); (J.Z.); (H.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xin Tang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (X.H.); (F.L.); (Q.Z.); (B.M.); (X.T.); (J.Z.); (H.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Jie Huang
- Suzhou Setech Biotechnology Co., Ltd., Suzhou 215000, China; (J.H.); (R.G.)
| | - Renmei Guo
- Suzhou Setech Biotechnology Co., Ltd., Suzhou 215000, China; (J.H.); (R.G.)
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (X.H.); (F.L.); (Q.Z.); (B.M.); (X.T.); (J.Z.); (H.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (X.H.); (F.L.); (Q.Z.); (B.M.); (X.T.); (J.Z.); (H.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
| | - Shumao Cui
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (X.H.); (F.L.); (Q.Z.); (B.M.); (X.T.); (J.Z.); (H.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Correspondence:
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (X.H.); (F.L.); (Q.Z.); (B.M.); (X.T.); (J.Z.); (H.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
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Wang MT, Guo WL, Yang ZY, Chen F, Lin TT, Li WL, Lv XC, Rao PF, Ai LZ, Ni L. Intestinal microbiomics and liver metabolomics insights into the preventive effects of chromium (III)-enriched yeast on hyperlipidemia and hyperglycemia induced by high-fat and high-fructose diet. Curr Res Food Sci 2022; 5:1365-1378. [PMID: 36092021 PMCID: PMC9449561 DOI: 10.1016/j.crfs.2022.08.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 08/20/2022] [Accepted: 08/22/2022] [Indexed: 11/18/2022] Open
Abstract
In recent years, organic chromium (III) supplements have received increasing attentions for their low toxicity, high bioavailability and wide range of health-promoting benefits. This study aimed to investigate the preventive effects of chromium (III)-enriched yeast (YCr) on high-fat and high-fructose diet (HFHFD)-induced hyperlipidemia and hyperglycemia in mice, and further clarify its mechanism of action from the perspective of intestinal microbiomics and liver metabolomics. The results indicated that oral administration of YCr remarkably inhibited the aberrant elevations of body weight, blood glucose and lipid levels, hepatic cholesterol (TC) and triglyceride (TG) levels caused by HFHFD. Liver histological examination showed that oral YCr intervention inhibited HFHFD induced liver lipid accumulation. Besides, 16S rDNA amplicon sequencing showed that YCr intervention was beneficial to ameliorating intestinal microbiota dysbiosis by altering the proportion of some intestinal microbial phylotypes. Correlation-based network analysis indicated that the key intestinal microbial phylotypes intervened by YCr were closely related to some biochemical parameters associated with glucose and lipid metabolism. Liver metabolomics analysis revealed that dietary YCr intervention significantly regulated the levels of some biomarkers involved in purine metabolism, glycerophospholipid metabolism, citrate cycle, pyrimidine metabolism, glycerophospholipid metabolism, phenylalanine, tyrosine and tryptophan biosynthesis, and so on. Moreover, dietary YCr intervention regulated the mRNA levels of key genes associated with glucose, cholesterol, fatty acids and bile acids metabolism in liver. These findings suggest that dietary YCr intervention has beneficial effects on glucose and lipid metabolism by regulating intestinal microbiota and liver metabolic pathway, and thus can be served as a functional component to prevent hyperlipidemia and hyperglycemia. Chromium-enriched yeast enhances glucose tolerance and liver glycogen synthesis. Chromium-enriched yeast ameliorates the disturbance of intestinal microbiota. Explore the hepatoprotective effect of chromium-enriched yeast based on metabolomics. Chromium-enriched yeast alleviates lipid metabolism through “gut-liver” axis. Chromium-enriched yeast intervention affects hepatic gene transcription levels.
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Hu Z, Yao Y, Lv M, Zhang Y, Zhang L, Yuan Y, Yue T. Isolation and identification of three water-soluble selenoproteins in Se-enriched Agaricus blazei Murrill. Food Chem 2020; 344:128691. [PMID: 33248838 DOI: 10.1016/j.foodchem.2020.128691] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 11/13/2020] [Accepted: 11/17/2020] [Indexed: 12/28/2022]
Abstract
Selenoproteins in selenium (Se)-enriched vegetables play an important role in human health. In this study, three water-soluble selenoproteins PR-Se-1, PR-Se-2 and PR-Se-3 in Agaricus blazei Murrill (ABM) were isolated by anion exchange chromatography, gel filtration chromatography and SDS-PAGE. Sequence analyses performed by HPLC-MS/MS showed that PR-Se-1, a 114024 Da selenoprotein with 1019 amino acids (AAs), is an isoenzyme of isocitrate dehydrogenase. PR-Se-2, a 53983 Da selenoprotein with 508 AAs, is a kind of dihydrolipoyl dehydrogenase. PR-Se-3, a 47179 Da selenoprotein with 415 AAs, is a kind d-proline reductase. Se content is high at 26.1 μg/g, and selenocystine is the predominant Se unit in the three selenoproteins. Se content of ABM is 9.15 μg/g, and the organic form of Se accounts for ~81% of total Se content. ABM could be a promising source of Se in Se-poor regions.
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Affiliation(s)
- Zhongqiu Hu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture and Rural Affairs of the People's Republic of China, Yangling 712100, Shaanxi, China.
| | - Yuanxi Yao
- Logistic Affairs Department, Chang'an University, Xi'an 710054, China
| | - Meng Lv
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture and Rural Affairs of the People's Republic of China, Yangling 712100, Shaanxi, China
| | - Yiqian Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture and Rural Affairs of the People's Republic of China, Yangling 712100, Shaanxi, China
| | - Lin Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture and Rural Affairs of the People's Republic of China, Yangling 712100, Shaanxi, China
| | - Yahong Yuan
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture and Rural Affairs of the People's Republic of China, Yangling 712100, Shaanxi, China
| | - Tianli Yue
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture and Rural Affairs of the People's Republic of China, Yangling 712100, Shaanxi, China.
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Zhou Y, Zhu H, Qi Y, Wu C, Zhang J, Shao L, Tan J, Chen D. Absorption and Distribution of Selenium Following Oral Administration of Selenium-Enriched Bifidobacterium longum DD98, Selenized Yeast, or Sodium Selenite in Rats. Biol Trace Elem Res 2020; 197:599-605. [PMID: 31845206 DOI: 10.1007/s12011-019-02011-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 12/09/2019] [Indexed: 12/29/2022]
Abstract
Selenium (Se) is one of the essential elements required to maintain human health. Although various kinds of Se supplements are now available on the market, their biological activities and toxicities vary based on the transportation characteristics of Se. In this study, we compared the absorption and distribution of Se in rats administered with different Se supplements: Se-enriched Bifidobacterium longum DD98 (Se-DD98), selenized yeast (Se-Y), and sodium selenite (Na2SeO3). Se-DD98, Se-Y, and Na2SeO3 were orally administered to rats. The plasma Se content at different time points after administration was determined within 72 h. Pharmacokinetic parameters were analyzed to reveal the absorption of Se. Se-DD98, Se-Y, and Na2SeO3 were also repeatedly administered by oral gavage for 30 days, and Se content of the heart, liver, spleen, lungs, kidneys, and muscle was determined to analyze the distribution of Se. The results showed that the organic Se supplements (Se-DD98 and Se-Y) were more easily absorbed into the blood and retained longer in the plasma than the inorganic Na2SeO3 was. Moreover, Se-DD98 induced better absorption of Se in plasma than Se-Y did. Furthermore, significantly higher concentrations of Se were found in the heart, liver, spleen, kidneys, and muscle of rats administered with organic Se supplements (Se-DD98 and Se-Y) than those administered the inorganic Na2SeO3. Rats administered Se-DD98 accumulated more Se in the spleen, lung, and kidney than those administered Se-Y, while Se-Y led to higher concentration of Se in the liver compared to Se-DD98. These results suggest that the organic form of Se was better absorbed and accumulated than the inorganic form was. Se-enriched B. longum DD98 induced greater absorption of Se in plasma and accumulation of Se in several organs than the selenized yeast did, which could suggest the potential superior nutritional function of Se-DD98.
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Affiliation(s)
- Yan Zhou
- Shanghai Jiao Tong University, No. 800 Dongchuan Road, Minhang District, Shanghai, 201100, China
- China State Institute of Pharmaceutical Industry, No. 285 Gebaini Road, Pudong New Area, Shanghai, 200120, China
| | - Hui Zhu
- Shanghai Jiao Tong University, No. 800 Dongchuan Road, Minhang District, Shanghai, 201100, China
| | - Yan Qi
- China State Institute of Pharmaceutical Industry, No. 285 Gebaini Road, Pudong New Area, Shanghai, 200120, China
- Fudan University, No. 826 Zhangheng Road, Pudong New Area, Shanghai, 201203, China
| | - Chunzhen Wu
- China State Institute of Pharmaceutical Industry, No. 285 Gebaini Road, Pudong New Area, Shanghai, 200120, China
| | - Junliang Zhang
- China State Institute of Pharmaceutical Industry, No. 285 Gebaini Road, Pudong New Area, Shanghai, 200120, China
| | - Lei Shao
- China State Institute of Pharmaceutical Industry, No. 285 Gebaini Road, Pudong New Area, Shanghai, 200120, China
| | - Jun Tan
- China State Institute of Pharmaceutical Industry, No. 285 Gebaini Road, Pudong New Area, Shanghai, 200120, China
| | - Daijie Chen
- Shanghai Jiao Tong University, No. 800 Dongchuan Road, Minhang District, Shanghai, 201100, China.
- China State Institute of Pharmaceutical Industry, No. 285 Gebaini Road, Pudong New Area, Shanghai, 200120, China.
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Zhang SQ, Shen S, Zhang Y. Comparison of Bioavailability, Pharmacokinetics, and Biotransformation of Selenium-Enriched Yeast and Sodium Selenite in Rats Using Plasma Selenium and Selenomethionine. Biol Trace Elem Res 2020; 196:512-516. [PMID: 31707637 DOI: 10.1007/s12011-019-01935-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 10/14/2019] [Indexed: 11/26/2022]
Abstract
For the first time, bioavailability, pharmacokinetics, and biotransformation of selenium-enriched yeast (SeY) and sodium selenite (Na2SeO3) in rats were systemically compared by analyzing free selenomethionine (SeMet), total SeMet, and selenium (Se). After SeY and Na2SeO3 were orally administered to rats at a dose of 100 μg Se/kg, plasma free SeMet, total SeMet, and Se at various time points were determined by ultra-performance liquid chromatography-tandem mass spectrometry. Based on Se and total SeMet, the relative bioavailability values of SeY compared with Na2SeO3 were 144% and 272%, respectively. For the rats treated with SeY, 0.73-2.68% of total Se was biotransformed to free SeMet, 14.3-20.4% to SeMet-proteins and albumin-bound SeMet, and 75.9-82.3% to selenoproteins in plasma. SeY had higher bioavailability than Na2SeO3 based on Se and total SeMet levels. Plasma SeMet was the optimal biomarker of SeY status in vivo.
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Affiliation(s)
- Shuang-Qing Zhang
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Beijing, 100050, China.
| | - Shi Shen
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Beijing, 100050, China
| | - Yan Zhang
- The Hubei Provincial Key Laboratory of Yeast Function, 168 Huaxi Road, Yichang, 443003, China
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Zhang SQ, Wang X, Zhang Y, Li X. Pharmacokinetics of Andrographolide Sodium Bisulphite and its Related Substance in Rats by Liquid Chromatography–Tandem Mass Spectrometry. JOURNAL OF ANALYTICAL CHEMISTRY 2020. [DOI: 10.1134/s1061934820080183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Alcântara DB, Nascimento RF, Lopes GS, Grinberg P. Evaluation of different strategies for determination of selenomethionine (SeMet) in selenized yeast by asymmetrical flow field flow fractionation coupled to inductively coupled plasma mass spectrometry (AF4-ICP-MS). ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:3351-3360. [PMID: 32930222 DOI: 10.1039/d0ay00658k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
This manuscript exemplifies the prospective use of asymmetrical flow field flow fractionation (AF4) coupled to inductively coupled plasma mass spectrometry (ICP-MS) as a simple tool for chemical speciation of selenomethionine (SeMet) in selenized yeast. Several popular sample preparation methods were evaluated for their suitability to determine selenomethionine (SeMet) in selenized yeast by AF4-ICP-MS. These included water, methanesulfonic acid (MSA), formic acid (FA) and alkaline extractions. Alkaline extraction (using sodium dodecyl sulfate buffer) provided the best recovery/determination conditions for SeMet based on analysis of NRC certified reference material (CRM) SELM-1 since it minimized hydrolysis of the protein peptide bonds optimally required for the AF4 separation. The analytical performance of three different AF4 membranes (5, 10 and 500 kDa regenerated cellulose) was also evaluated. No significant difference in the recovery of SeMet was observed when using 5 and 10 kDa RC membranes, whereas the 500 kDa membrane resulted in a significant loss. The proposed method presents appropriate instrument and intra-assay precisions of 4.4-9.2% and 3.8% RSD, respectively, a detection limit of 0.49 μg L-1 SeMet as Se and good linearity with correlation coefficients (R) between 0.996 - 0.999. This is the first report of use of AF4-ICP-MS for species specific quantitation of SeMet in selenized yeast demonstrating its efficient use as an alternative method to other traditional chromatographic techniques.
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Affiliation(s)
- Daniel B Alcântara
- Chemical Metrology, NRC Metrology, National Research Council of Canada, Ottawa, Canada.
- Laboratório de Estudos em Química Aplicada (LEQA), Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará (UFC), 60455-760 Fortaleza, CE, Brazil
- Laboratório de Análise de Traços (LAT), Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará (UFC), 60455-760 Fortaleza, CE, Brazil
| | - Ronaldo F Nascimento
- Laboratório de Análise de Traços (LAT), Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará (UFC), 60455-760 Fortaleza, CE, Brazil
| | - Gisele S Lopes
- Laboratório de Estudos em Química Aplicada (LEQA), Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará (UFC), 60455-760 Fortaleza, CE, Brazil
| | - Patricia Grinberg
- Chemical Metrology, NRC Metrology, National Research Council of Canada, Ottawa, Canada.
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Foliar application is an effective method for incorporating selenium into peanut leaf proteins with antioxidant activities. Food Res Int 2019; 126:108617. [PMID: 31732068 DOI: 10.1016/j.foodres.2019.108617] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 08/06/2019] [Accepted: 08/11/2019] [Indexed: 01/08/2023]
Abstract
Proteins were extracted from Se-enriched peanut leaves, an agro-byproduct, and the foliar application of sodium selenite was indicated to be an effective method to incorporate Se into leaf selenoproteins with 75-80% incorporation rates. After trypsin digestion, the most abundant proteins from Se-enriched peanut leaf (PSPL) were identified as pathogenesis-related class 10 proteins, Ara h 8 allergen and its isoforms, using LC-MS/MS. The Se species in both the low Se PSPL and high Se PSPL were determined to be selenomethionine (SeMet), methylselenocysteine (MeSeCys) and selenocystine (SeCys2) with SeMet (15.6 mg/g) dominated the high Se PSPL. Their antioxidant activities were also evaluated using free radical scavenging assay, reducing power assay and ferric thiocyanate (FTC) test. As results, the PSPL exhibited potent DPPH radical (96.2%) and superoxide anion radical (98.4%) scavenging activities and showed strong reducing power in a Se-concentration-dependent manner, indicating that PSPL can be used as antioxidants and Se sources to improve health.
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Constantinescu-Aruxandei D, Frîncu RM, Capră L, Oancea F. Selenium Analysis and Speciation in Dietary Supplements Based on Next-Generation Selenium Ingredients. Nutrients 2018; 10:E1466. [PMID: 30304813 PMCID: PMC6213372 DOI: 10.3390/nu10101466] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 10/02/2018] [Accepted: 10/03/2018] [Indexed: 12/27/2022] Open
Abstract
Selenium is essential for humans and the deficit of Se requires supplementation. In addition to traditional forms such as Se salts, amino acids, or selenium-enriched yeast supplements, next-generation selenium supplements, with lower risk for excess supplementation, are emerging. These are based on selenium forms with lower toxicity, higher bioavailability, and controlled release, such as zerovalent selenium nanoparticles (SeNPs) and selenized polysaccharides (SPs). This article aims to focus on the existing analytical systems for the next-generation Se dietary supplement, providing, at the same time, an overview of the analytical methods available for the traditional forms. The next-generation dietary supplements are evaluated in comparison with the conventional/traditional ones, as well as the analysis and speciation methods that are suitable to reveal which Se forms and species are present in a dietary supplement. Knowledge gaps and further research potential in this field are highlighted. The review indicates that the methods of analysis of next-generation selenium supplements should include a step related to chemical species separation. Such a step would allow a proper characterization of the selenium forms/species, including molecular mass/dimension, and substantiates the marketing claims related to the main advantages of these new selenium ingredients.
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Affiliation(s)
- Diana Constantinescu-Aruxandei
- National Research & Development Institute for Chemistry and Petrochemistry ICECHIM, 202 Splaiul Independentei, 060021 Bucharest, Romania.
| | - Rodica Mihaela Frîncu
- INCDCP-ICECHIM Calarasi Subsidiary, 7A Nicolae Titulescu St., 915300 Lehliu Gara, Romania.
| | - Luiza Capră
- National Research & Development Institute for Chemistry and Petrochemistry ICECHIM, 202 Splaiul Independentei, 060021 Bucharest, Romania.
| | - Florin Oancea
- National Research & Development Institute for Chemistry and Petrochemistry ICECHIM, 202 Splaiul Independentei, 060021 Bucharest, Romania.
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