Soil-type influences human selenium status and underlies widespread selenium deficiency risks in Malawi
Selenium (Se) is an essential human micronutrient with critical roles in immune functioning and antioxidant defence. Estimates of dietary Se intakes and status are scarce for Africa although crop surveys indicate deficiency is probably widespread in Malawi. Here we show that Se deficiency is likely...
| Autores principales: | , , , , , , , , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2013
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/152733 |
| _version_ | 1855513389496795136 |
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| author | Hurst, Rachel Siyame, Edwin W. P. Young, Scott D. Chilimba, Allan D.C. Joy, Edward J.M. Black, Colin R. Ander, E. Louise Watts, Michael J. Chilima, Benson Gondwe, Jellita Kang'ombe, Dalitso Stein, Alexander J. Fairweather-Tait, Susan J. Gibson, Rosalind S. Kalimbira, Alexander A. Broadley, Martin R. |
| author_browse | Ander, E. Louise Black, Colin R. Broadley, Martin R. Chilima, Benson Chilimba, Allan D.C. Fairweather-Tait, Susan J. Gibson, Rosalind S. Gondwe, Jellita Hurst, Rachel Joy, Edward J.M. Kalimbira, Alexander A. Kang'ombe, Dalitso Siyame, Edwin W. P. Stein, Alexander J. Watts, Michael J. Young, Scott D. |
| author_facet | Hurst, Rachel Siyame, Edwin W. P. Young, Scott D. Chilimba, Allan D.C. Joy, Edward J.M. Black, Colin R. Ander, E. Louise Watts, Michael J. Chilima, Benson Gondwe, Jellita Kang'ombe, Dalitso Stein, Alexander J. Fairweather-Tait, Susan J. Gibson, Rosalind S. Kalimbira, Alexander A. Broadley, Martin R. |
| author_sort | Hurst, Rachel |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Selenium (Se) is an essential human micronutrient with critical roles in immune functioning and antioxidant defence. Estimates of dietary Se intakes and status are scarce for Africa although crop surveys indicate deficiency is probably widespread in Malawi. Here we show that Se deficiency is likely endemic in Malawi based on the Se status of adults consuming food from contrasting soil types. These data are consistent with food balance sheets and composition tables revealing that >80% of the Malawi population is at risk of dietary Se inadequacy. Risk of dietary Se inadequacy is >60% in seven other countries in Southern Africa and 22% across Africa as a whole. Given that most Malawi soils cannot supply sufficient Se to crops for adequate human nutrition, the cost and benefits of interventions to alleviate Se deficiency should be determined; for example, Se-enriched nitrogen fertilisers could be adopted as in Finland. |
| format | Journal Article |
| id | CGSpace152733 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace1527332025-09-25T13:01:37Z Soil-type influences human selenium status and underlies widespread selenium deficiency risks in Malawi Hurst, Rachel Siyame, Edwin W. P. Young, Scott D. Chilimba, Allan D.C. Joy, Edward J.M. Black, Colin R. Ander, E. Louise Watts, Michael J. Chilima, Benson Gondwe, Jellita Kang'ombe, Dalitso Stein, Alexander J. Fairweather-Tait, Susan J. Gibson, Rosalind S. Kalimbira, Alexander A. Broadley, Martin R. selenium trace elements antioxidants deficiency diseases soil types immune system human pathology crops Selenium (Se) is an essential human micronutrient with critical roles in immune functioning and antioxidant defence. Estimates of dietary Se intakes and status are scarce for Africa although crop surveys indicate deficiency is probably widespread in Malawi. Here we show that Se deficiency is likely endemic in Malawi based on the Se status of adults consuming food from contrasting soil types. These data are consistent with food balance sheets and composition tables revealing that >80% of the Malawi population is at risk of dietary Se inadequacy. Risk of dietary Se inadequacy is >60% in seven other countries in Southern Africa and 22% across Africa as a whole. Given that most Malawi soils cannot supply sufficient Se to crops for adequate human nutrition, the cost and benefits of interventions to alleviate Se deficiency should be determined; for example, Se-enriched nitrogen fertilisers could be adopted as in Finland. 2013 2024-10-01T13:55:08Z 2024-10-01T13:55:08Z Journal Article https://hdl.handle.net/10568/152733 en Open Access Springer Hurst, Rachel; Siyame, Edwin W.P.; Young, Scott D.; Chilimba, Allan D.C.; Joy, Edward J.M.; Black, Colin R.; Ander, E. Louise; Watts, Michael J.; Chilima, Benson; Gondwe, Jellita; Kang'ombe, Dalitso; Stein, Alexander J.; Fairweather-Tait, Susan J.; Gibson, Rosalind S.; Kalimbira, Alexander A.; and Broadley, Martin R. 2013. Soil-type influences human selenium status and underlies widespread selenium deficiency risks in Malawi. Scientific Reports 3: 1425. https://doi.org/10.1038/srep01425 |
| spellingShingle | selenium trace elements antioxidants deficiency diseases soil types immune system human pathology crops Hurst, Rachel Siyame, Edwin W. P. Young, Scott D. Chilimba, Allan D.C. Joy, Edward J.M. Black, Colin R. Ander, E. Louise Watts, Michael J. Chilima, Benson Gondwe, Jellita Kang'ombe, Dalitso Stein, Alexander J. Fairweather-Tait, Susan J. Gibson, Rosalind S. Kalimbira, Alexander A. Broadley, Martin R. Soil-type influences human selenium status and underlies widespread selenium deficiency risks in Malawi |
| title | Soil-type influences human selenium status and underlies widespread selenium deficiency risks in Malawi |
| title_full | Soil-type influences human selenium status and underlies widespread selenium deficiency risks in Malawi |
| title_fullStr | Soil-type influences human selenium status and underlies widespread selenium deficiency risks in Malawi |
| title_full_unstemmed | Soil-type influences human selenium status and underlies widespread selenium deficiency risks in Malawi |
| title_short | Soil-type influences human selenium status and underlies widespread selenium deficiency risks in Malawi |
| title_sort | soil type influences human selenium status and underlies widespread selenium deficiency risks in malawi |
| topic | selenium trace elements antioxidants deficiency diseases soil types immune system human pathology crops |
| url | https://hdl.handle.net/10568/152733 |
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