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Lin Y, He F, Lian S, Xie B, Liu T, He J, Liu C. Selenium Status in Patients with Chronic Liver Disease: A Systematic Review and Meta-Analysis. Nutrients 2022; 14:nu14050952. [PMID: 35267927 PMCID: PMC8912406 DOI: 10.3390/nu14050952] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 02/21/2022] [Accepted: 02/22/2022] [Indexed: 02/06/2023] Open
Abstract
Background: The potential role of selenium in preventing chronic liver diseases remains controversial. This meta-analysis aimed to summarize the available evidence from observational studies and intervention trials that had evaluated the associations between body selenium status and chronic liver diseases. Methods: We comprehensively searched MEDLINE, Embase, Web of Science, and Cochrane Library from inception to April 2021. The study protocol was registered at PROSPERO (CRD42020210144). Relative risks (RR) for the highest versus the lowest level of selenium and standard mean differences (SMD) with 95% confidence intervals (CI) were pooled using random-effects models. Heterogeneity and publication bias were evaluated using the I2 statistic and Egger’s regression test, respectively. Results: There were 50 studies with 9875 cases and 12975 population controls in the final analysis. Patients with hepatitis (SMD = −1.78, 95% CI: −2.22 to −1.34), liver cirrhosis (SMD = −2.06, 95% CI: −2.48 to −1.63), and liver cancer (SMD = −2.71, 95% CI: −3.31 to −2.11) had significantly lower selenium levels than controls, whereas there was no significant difference in patients with fatty liver diseases (SMD = 1.06, 95% CI: −1.78 to 3.89). Moreover, the meta-analysis showed that a higher selenium level was significantly associated with a 41% decrease in the incidence of significant advanced chronic liver diseases (RR = 0.59, 95% CI: 0.49 to 0.72). Conclusion: Our meta-analysis suggested that both body selenium status and selenium intake were negatively associated with hepatitis, cirrhosis, and liver cancer. However, the associations for fatty liver diseases were conflicting and need to be established in prospective trials.
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Affiliation(s)
- Yaduan Lin
- Department of Nutrition, School of Medicine, Jinan University, Guangzhou 510632, China; (Y.L.); (S.L.); (B.X.); (T.L.)
| | - Fanchen He
- Institute of Land and Sea Transport Systems, Faculty of Mechanical Engineering and Transport Systems, Technical University of Berlin, 10623 Berlin, Germany;
| | - Shaoyan Lian
- Department of Nutrition, School of Medicine, Jinan University, Guangzhou 510632, China; (Y.L.); (S.L.); (B.X.); (T.L.)
| | - Binbin Xie
- Department of Nutrition, School of Medicine, Jinan University, Guangzhou 510632, China; (Y.L.); (S.L.); (B.X.); (T.L.)
| | - Ting Liu
- Department of Nutrition, School of Medicine, Jinan University, Guangzhou 510632, China; (Y.L.); (S.L.); (B.X.); (T.L.)
| | - Jiang He
- Department of Mathematics and Physics, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China
- Correspondence: (J.H.); (C.L.)
| | - Chaoqun Liu
- Department of Nutrition, School of Medicine, Jinan University, Guangzhou 510632, China; (Y.L.); (S.L.); (B.X.); (T.L.)
- Correspondence: (J.H.); (C.L.)
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Wang P, Lu Z, He M, Shi B, Lei X, Shan A. The Effects of Endoplasmic-Reticulum-Resident Selenoproteins in a Nonalcoholic Fatty Liver Disease Pig Model Induced by a High-Fat Diet. Nutrients 2020; 12:nu12030692. [PMID: 32143527 PMCID: PMC7146353 DOI: 10.3390/nu12030692] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 02/29/2020] [Accepted: 03/02/2020] [Indexed: 12/20/2022] Open
Abstract
The present study aimed to investigate the intervention of selenium in the oxidative stress and apoptosis of pig livers, which were induced by a high-fat diet, and the effects of four endoplasmic reticulum (ER)-resident selenoproteins in the process. A 2 × 4 design trial was conducted that included two dietary fat levels (BD = basal diet and HFD = high-fat diet) and four dietary Se supplementation levels (0, 0.3, 1.0, and 3.0 mg/kg of the diet, in the form of sodium selenite (Na2SeO3)). Our results indicated that the HFD significantly increased the activities of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) in the serum, as well as the degree of steatosis, the content of malondialdehyde (MDA), the apoptotic rate, and the level of mRNA caspase-3 in the liver compared to their BD counterparts (p < 0.05). Moreover, these parameters in the HFD groups were more significantly reduced (p < 0.05) for a Se concentration of 1.0 mg/kg than for the other concentrations. Further, for both the BD and HFD, the groups supplemented with 1.0 mg/kg Se showed the highest mRNA level of selenoprotein S. In conclusion, the consumption of an HFD can induce oxidative damage and apoptosis in the liver. This shows that the supplementation of Se at 1.0 mg/kg may be the optimum concentration against damage induced by HFD, and Sels may play a key role in this process.
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Affiliation(s)
- Pengzu Wang
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, China; (P.W.); (Z.L.); (M.H.); (B.S.)
| | - Zhuang Lu
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, China; (P.W.); (Z.L.); (M.H.); (B.S.)
| | - Meng He
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, China; (P.W.); (Z.L.); (M.H.); (B.S.)
| | - Baoming Shi
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, China; (P.W.); (Z.L.); (M.H.); (B.S.)
| | - Xingen Lei
- Department of Animal Science, Cornell University, Ithaca, NY 14853, USA;
| | - Anshan Shan
- Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, China; (P.W.); (Z.L.); (M.H.); (B.S.)
- Correspondence: ; Tel./Fax: +86-0451-55190685
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Polyzos SA, Kountouras J, Goulas A, Duntas L. Selenium and selenoprotein P in nonalcoholic fatty liver disease. Hormones (Athens) 2020; 19:61-72. [PMID: 31493247 DOI: 10.1007/s42000-019-00127-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 08/02/2019] [Indexed: 02/07/2023]
Abstract
Conflicting data link nonalcoholic fatty liver disease (NAFLD), a disease with no currently approved treatment, with selenium (Se) and selenoprotein P (SELENOP), a glycoprotein synthesized and primarily secreted by the hepatocytes, functioning as a Se transporter from the liver to other tissues. This review aims to summarize the evidence between Se, SELENOP, and NAFLD, which may hopefully clarify whether current data on Se and SELENOP in NAFLD warrant further investigation for their diagnostic and therapeutic potential. Most, albeit not all, experimental data show a favorable effect of Se on hepatic steatosis, inflammation, and fibrosis. It seems that Se may exert an antioxidant effect on the liver, at least partly via increasing the activity of glutathione peroxidase, whose depletion contributes to the pathogenesis of hepatic inflammation and fibrosis. Se may also affect metalloproteinases, cytokines, and growth factors participating in the pathogenesis of NAFLD and, most importantly, may induce the apoptosis of hepatic stellate cells, the key players in hepatic fibrosis. However, the association between Se or SELENOP and insulin resistance, which is a principal pathogenetic factor of NAFLD, remains inconclusive. Clinical studies on Se or SELENOP in NAFLD are conflicting, apart from those in advanced liver disease (cirrhosis or hepatocellular carcinoma), in which lower circulating Se and SELENOP are constant findings. Existing data warrant further mechanistic studies in valid animal models of human NAFLD. Prospective cohort studies and possibly randomized controlled trials are also needed to elucidate the diagnostic and therapeutic potential of Se supplementation in selected NAFLD individuals with Se deficiency.
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Affiliation(s)
- Stergios A Polyzos
- First Department of Pharmacology, School of Medicine, Aristotle University of Thessaloniki, Campus of Aristotle University of Thessaloniki, 54124, Thessaloniki, Macedonia, Greece.
| | - Jannis Kountouras
- Second Medical Clinic, School of Medicine, Ippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | - Antonis Goulas
- First Department of Pharmacology, School of Medicine, Aristotle University of Thessaloniki, Campus of Aristotle University of Thessaloniki, 54124, Thessaloniki, Macedonia, Greece
| | - Leonidas Duntas
- Endocrine Unit, Evgenidion Hospital, National Kapodestrian University, Athens, Greece
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Cai Z, Zhang J, Li H. Selenium, aging and aging-related diseases. Aging Clin Exp Res 2019; 31:1035-1047. [PMID: 30511318 DOI: 10.1007/s40520-018-1086-7] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 11/24/2018] [Indexed: 02/07/2023]
Abstract
Selenium is an essential trace element in the human body and plays an important role in the body via selenoprotein, which contains selenium. Selenoproteins (glutathione peroxidase, thioredoxin reductase, methionine sulfoxide reductase1 and endoplasmic reticulum-selenoproteins, etc.) have antioxidant effects and are involved in regulating antioxidant activities. Aging is an inevitable process and is always accompanied by aging-related diseases. Reactive oxygen species are important initial factors in aging and aging-related diseases. Selenium contributes to the alleviation of reduced reactive oxygen species-mediated inflammation, reduced DNA damage and prolonged telomere length and thereby plays roles in fighting aging and preventing aging-related diseases. In the elderly, aging-related diseases include neuropsychiatric diseases, tumors, cardiovascular diseases, and skin aging, among others. Selenium supplementation is an important strategy for anti-aging and the prevention of aging-related diseases and is of great significance for the elderly. However, with the accumulation of related research, selenium supplementation does not necessarily contribute to the prevention of aging and aging-related diseases. It is believed that a low level of selenium is beneficial to the human body. Thus, the effect of selenium on human aging and aging-related diseases is still controversial. This paper reviews the research progress and objective role of selenium in aging and aging-related diseases.
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Affiliation(s)
- Zhonglin Cai
- Department of Urology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China
| | - Jianzhong Zhang
- Department of Urology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China
| | - Hongjun Li
- Department of Urology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China.
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Gatiatulina ER, Popova EV, Polyakova VS, Skalnaya AA, Agletdinov EF, Nikonorov AA, Skalny AV, Tinkov AA. Evaluation of tissue metal and trace element content in a rat model of non-alcoholic fatty liver disease using ICP-DRC-MS. J Trace Elem Med Biol 2017; 39:91-99. [PMID: 27908430 DOI: 10.1016/j.jtemb.2016.08.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Revised: 08/10/2016] [Accepted: 08/18/2016] [Indexed: 02/07/2023]
Abstract
The primary objective of the study was to assess the level of metals and trace elements in liver, serum, and hair of rats with diet-induced non-alcoholic fatty liver disease (NAFLD) using inductively coupled plasma dynamic reaction cell mass spectrometer (ICP-DRC-MS). 56 female 3-months-old Wistar rats divided into two equal groups were fed either standard (10% calories from fat) or high-fat high-carbohydrate diet (60% calories from fat in chow and 10% sucrose solution) for 6 weeks. Serum was examined for insulin resistance markers, lipid profile, and alanine aminotransferase (ALT) activity. Liver histology was assessed after hematoxylin and eosin staining. Metal and trace element concentrations were assessed by means of ICP-DRC-MS. Overfed animals were characterized by higher values of morphometric parameters. Liver examination revealed large and small droplet steatosis, hepatocyte ballooning and necrosis, being characteristic for NAFLD. Animals with NAFLD were characterized by insulin resistance, atherogenic changes of lipid profile and increased ALT activity. Significantly decreased hepatic Co, Cu, I, Li, Mn, Se, Zn levels were observed in rats with NAFLD. At the same time, only hepatic Mn and Se levels remained decreased after adjustment for total protein. Overfed animals were characterized by significantly lower I, Li, and Mn levels in blood serum, whereas concentration of Co, Se, V, and Sr exceeded the control values. In general, the results of the study demonstrate that NAFLD significantly affects metal and trace element status in experimental animals.
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Affiliation(s)
- Eugenia R Gatiatulina
- Department of Biochemistry, Orenburg State Medical University, Sovetskaya St., 6, Orenburg, 460000, Russia
| | - Elizaveta V Popova
- Department of Biochemistry, Orenburg State Medical University, Sovetskaya St., 6, Orenburg, 460000, Russia
| | - Valentina S Polyakova
- Department of Pathologic Anatomy, Orenburg State Medical University, Sovetskaya St., 6, Orenburg, 460000, Russia
| | - Anastasia A Skalnaya
- Faculty of Fundamental Medicine, Lomonosov Moscow State University, Lomonosovsky Prospekt, 31-5, Moscow, 117192, Russia
| | - Eduard F Agletdinov
- Central Research Laboratory, Bashkir State Medical University, Zaki Validi St., 64/2, Ufa, 450057, Russia
| | - Alexandr A Nikonorov
- Department of Biochemistry, Orenburg State Medical University, Sovetskaya St., 6, Orenburg, 460000, Russia; Institute of Bioelementology (Russian Satellite Centre of Trace Element - Institute for UNESCO), Orenburg State University, Pobedy Ave. 13, Orenburg 460352, Russia
| | - Anatoly V Skalny
- Institute of Bioelementology (Russian Satellite Centre of Trace Element - Institute for UNESCO), Orenburg State University, Pobedy Ave. 13, Orenburg 460352, Russia; Laboratory of biotechnology and applied bioelementology, Yaroslavl State University, Sovetskaya st., 14, Yaroslavl, 150000, Russia; All-Russian Research Institute of Medicinal and Aromatic Plants (VILAR), Grina St., 7, Moscow, 117216, Russia; RUDN University, Miklukho-Maklai str. 6, Moscow, 117198, Russia
| | - Alexey A Tinkov
- Department of Biochemistry, Orenburg State Medical University, Sovetskaya St., 6, Orenburg, 460000, Russia; Institute of Bioelementology (Russian Satellite Centre of Trace Element - Institute for UNESCO), Orenburg State University, Pobedy Ave. 13, Orenburg 460352, Russia; Laboratory of biotechnology and applied bioelementology, Yaroslavl State University, Sovetskaya st., 14, Yaroslavl, 150000, Russia; RUDN University, Miklukho-Maklai str. 6, Moscow, 117198, Russia.
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Barb D, Portillo-Sanchez P, Cusi K. Pharmacological management of nonalcoholic fatty liver disease. Metabolism 2016; 65:1183-95. [PMID: 27301803 DOI: 10.1016/j.metabol.2016.04.004] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 04/16/2016] [Accepted: 04/18/2016] [Indexed: 12/12/2022]
Abstract
Nonalcoholic fatty liver disease (NAFLD) affects one-third of the population and two-thirds of patients with obesity or type 2 diabetes (T2DM). Its more aggressive form is known as nonalcoholic steatohepatitis (NASH) and is characterized by hepatocyte necrosis, inflammation and often fibrosis. The presence of fibrosis indicates a more aggressive course and may lead to cirrhosis. Premature mortality in NASH is related to both hepatic (cirrhosis and hepatocellular carcinoma) and extra-hepatic complications, largely cardiovascular disease (CVD). Many therapeutic agents have been tested, but still none approved specifically for NASH. Treatment of NAFLD includes aggressive management of diabetes and cardiovascular risk factors, although the role of controlling hyperglycemia per se in patients with T2DM and NASH remains unknown. Agents tested with some success in non-diabetic patients with NASH include pioglitazone, liraglutide, vitamin E and to a lesser degree, pentoxiphylline. In patients with T2DM and NASH only pioglitazone has shown to significantly improve liver histology, with only a handful of patients with diabetes having been studied with other modalities. This review focuses on available agents for NASH to assist clinicians in the management of these complex patients. Many novel compounds are being studied and will likely make combination therapy for NASH a reality in the future.
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Affiliation(s)
- Diana Barb
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Florida College of Medicine, Gainesville, FL, USA; Division of Endocrinology, Diabetes and Metabolism at Malcom Randall Veterans Affairs Medical Center, Gainesville, FL, USA
| | - Paola Portillo-Sanchez
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Florida College of Medicine, Gainesville, FL, USA; Division of Endocrinology, Diabetes and Metabolism at Malcom Randall Veterans Affairs Medical Center, Gainesville, FL, USA
| | - Kenneth Cusi
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Florida College of Medicine, Gainesville, FL, USA; Division of Endocrinology, Diabetes and Metabolism at Malcom Randall Veterans Affairs Medical Center, Gainesville, FL, USA.
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Skalny AV, Skalnaya MG, Tinkov AA, Serebryansky EP, Demidov VA, Lobanova YN, Grabeklis AR, Berezkina ES, Gryazeva IV, Skalny AA, Skalnaya OA, Zhivaev NG, Nikonorov AA. Hair concentration of essential trace elements in adult non-exposed Russian population. ENVIRONMENTAL MONITORING AND ASSESSMENT 2015; 187:677. [PMID: 26446131 DOI: 10.1007/s10661-015-4903-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 09/30/2015] [Indexed: 05/21/2023]
Abstract
Appropriate reference values of hair trace element content are required for correct interpretation of biomonitoring data. The primary objective of the current study was to estimate the reference values of selected essential trace elements in hair of adult Russian population. Involved in current investigation were 7256 occupationally non-exposed adults aged from 20 to 60 years and living in the European part of Russia. Occipital hair essential metal and metalloid (Co, Cr, Cu, Fe, Mn, Se, V, Zn) content was estimated using inductively coupled plasma mass spectrometry. The reference ranges were calculated in accordance with the International Union of Pure and Applied Chemistry (IUPAC) recommendations. Women were characterized by 55, 18, 58, and 7% higher values of hair Co, Cu, Mn, and Zn content as compared to the values observed in men. At the same time, hair Cr, Fe, Se, and V concentration in men significantly exceeded the respective female values by 65, 13, 20, and 56%. Consequently, the reference ranges of essential hair trace elements content should be separately calculated for both men and women. The obtained reference ranges for hair Co, Cr, Cu, Fe, Mn, Se, V, and Zn in men were 0.11-0.67, 0.007-0.045, 10.4-22.6, 11.1-40.5, 0.24-1.05, 0.089-0.480, 0.014-0.083, and 125.7-262.8 μg/g, respectively. The respective values estimated for women were 0.06-0.40, 0.011-0.085, 12.1-44.5, 8.9-25.6, 0.32-2.05, 0.094-0.504, 0.010-0.056, and 140.0-315.1 μg/g. The reference ranges for hair Co (0.07-0.50), Cr (0.009-0.073), Cu (11.8-29.2), Fe (9.6-31.5), Mn (0.29-1.76), Se (0.093-0.482), V (0.011-0.069), and Zn (134.7-301.9) content (μg/g) in the general cohort were also calculated.
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Affiliation(s)
- Anatoly V Skalny
- Laboratory of biotechnology and Applied Bioelementology, Yaroslavl State University, Sovetskaya st., 14, Yaroslavl, 150000, Russia
- All-Russian Research Institute of Medicinal and Aromatic Plants (VILAR), Grina St., 7, Moscow, 117216, Russia
- Russian Society of Trace Elements in Medicine, ANO "Centre for Biotic Medicine", Zemlyanoy Val St. 46, Moscow, 105064, Russia
| | - Margarita G Skalnaya
- Russian Society of Trace Elements in Medicine, ANO "Centre for Biotic Medicine", Zemlyanoy Val St. 46, Moscow, 105064, Russia
| | - Alexey A Tinkov
- Laboratory of biotechnology and Applied Bioelementology, Yaroslavl State University, Sovetskaya st., 14, Yaroslavl, 150000, Russia.
- Russian Society of Trace Elements in Medicine, ANO "Centre for Biotic Medicine", Zemlyanoy Val St. 46, Moscow, 105064, Russia.
- Department of Biochemistry, Orenburg State Medical University, Sovetskaya St., 6, Orenburg, 460000, Russia.
| | - Eugeny P Serebryansky
- Russian Society of Trace Elements in Medicine, ANO "Centre for Biotic Medicine", Zemlyanoy Val St. 46, Moscow, 105064, Russia
| | - Vasily A Demidov
- Russian Society of Trace Elements in Medicine, ANO "Centre for Biotic Medicine", Zemlyanoy Val St. 46, Moscow, 105064, Russia
| | - Yulia N Lobanova
- Russian Society of Trace Elements in Medicine, ANO "Centre for Biotic Medicine", Zemlyanoy Val St. 46, Moscow, 105064, Russia
| | - Andrei R Grabeklis
- Laboratory of biotechnology and Applied Bioelementology, Yaroslavl State University, Sovetskaya st., 14, Yaroslavl, 150000, Russia
- Russian Society of Trace Elements in Medicine, ANO "Centre for Biotic Medicine", Zemlyanoy Val St. 46, Moscow, 105064, Russia
| | - Elena S Berezkina
- Laboratory of biotechnology and Applied Bioelementology, Yaroslavl State University, Sovetskaya st., 14, Yaroslavl, 150000, Russia
- Russian Society of Trace Elements in Medicine, ANO "Centre for Biotic Medicine", Zemlyanoy Val St. 46, Moscow, 105064, Russia
| | - Irina V Gryazeva
- Russian Society of Trace Elements in Medicine, ANO "Centre for Biotic Medicine", Zemlyanoy Val St. 46, Moscow, 105064, Russia
| | - Andrey A Skalny
- Russian Society of Trace Elements in Medicine, ANO "Centre for Biotic Medicine", Zemlyanoy Val St. 46, Moscow, 105064, Russia
- Federal State Scientific Institution "Institute of Toxicology", Federal Medico-Biological Agency, Bekhtereva str. 1, St. Petersburg, 192019, Russia
| | - Oksana A Skalnaya
- Russian Society of Trace Elements in Medicine, ANO "Centre for Biotic Medicine", Zemlyanoy Val St. 46, Moscow, 105064, Russia
| | - Nikolay G Zhivaev
- Department of Pedagogy and Educational Psychology, Yaroslavl State University, Sovetskaya st., 14, Yaroslavl, 150000, Russia
| | - Alexandr A Nikonorov
- Department of Biochemistry, Orenburg State Medical University, Sovetskaya St., 6, Orenburg, 460000, Russia
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Chen Z, Li H, Yang L, Wang W, Li Y, Gong H, Guo M, Nima C, Zhao S, Wang J, Ye B, Danzeng S, Deji Y. Hair Selenium Levels of School Children in Kashin-Beck Disease Endemic Areas in Tibet, China. Biol Trace Elem Res 2015; 168:25-32. [PMID: 25910897 DOI: 10.1007/s12011-015-0333-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2015] [Accepted: 04/06/2015] [Indexed: 11/26/2022]
Abstract
Previous studies have shown that the selenium (Se) deficiency is an important factor for the etiology of Kashin-Beck disease (KBD). Although KBD is presently controlled in most regions of China, it is still active in the Tibetan Plateau. The present study aimed to assess the nutritional status of selenium in school children by using the Se level in hair as a biomarker in KBD endemic areas of Lhasa in Tibet, China. Hair samples of 155 school children aged 6-15 years were collected in both KBD areas and non-KBD areas of Lhasa in 2013. The Se level in the hair samples was determined by inductive coupled plasma mass spectrometry (ICP-MS). The average concentration of Se in children's hair was 0.232 μg/g in KBD areas of Lhasa, which was significantly higher than the data reported decades ago. A significant difference in hair Se was observed between the boys (0.255 μg/g) and the girls (0.222 μg/g) in the studied KBD areas (P < 0.01, Mann-Whitney U test), but hair Se did not vary by age or region. School children in KBD endemic areas in Lhasa likely have improved Se status as a result of high Se content staple food substitution with the enforcement of Free Education Policy and Nutrition Improvement Plan in Tibet. Nevertheless, there were still 20.3 % of students with low Se status (hair Se <0.20 μg/g), which showed that Se status of school children was also partly affected by low Se environment in KBD endemic areas of Lhasa.
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Affiliation(s)
- Zhuo Chen
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
- Graduate University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Hairong Li
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China.
| | - Linsheng Yang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
| | - Wuyi Wang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
| | - Yonghua Li
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
| | - Hongqiang Gong
- Center for Endemic Diseases Control, Tibet Centers for Disease Control and Prevention, Lhasa, 850000, People's Republic of China
| | - Min Guo
- Center for Endemic Diseases Control, Tibet Centers for Disease Control and Prevention, Lhasa, 850000, People's Republic of China
| | - Cangjue Nima
- Center for Endemic Diseases Control, Tibet Centers for Disease Control and Prevention, Lhasa, 850000, People's Republic of China
| | - Shengcheng Zhao
- Center for Endemic Diseases Control, Tibet Centers for Disease Control and Prevention, Lhasa, 850000, People's Republic of China
| | - Jing Wang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
| | - Bixiong Ye
- Institute for Environment Hygiene and Health Related Product Safety, Chinese Center for Disease Control and Prevention, Beijing, 100050, People's Republic of China
| | - Sangbu Danzeng
- Center for Endemic Diseases Control, Tibet Centers for Disease Control and Prevention, Lhasa, 850000, People's Republic of China
| | - Yangzong Deji
- Center for Endemic Diseases Control, Tibet Centers for Disease Control and Prevention, Lhasa, 850000, People's Republic of China
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