Selenium status in preschool children receiving a Brazil nut–enriched diet

Martens, Irland Barroncas Gonzaga; Cardoso, Bárbara Rita; Hare, Dominic J.; Niedzwiecki, Megan M.; Lajolo, Franco Maria; Martens, Andreas; Cozzolino, Sílvia Maria Franciscato

doi:10.1016/j.nut.2015.05.005

Cited by 59 publications

(23 citation statements)

References 41 publications

(51 reference statements)

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“…Exposure to cadmium has been associated with decreased bone density [ 12 ]. The trace elements concentration in metabolically inactive fingernails has been used to monitoring the exposure to toxic metals [ 13 – 15 ] or to assess associations between excess or deficiency of trace elements and risk of cognitive decline in ageing [ 16 ], chronic kidney diseases [ 17 ], metabolic syndrome [ 18 ], inflammation [ 19 ], amyotrophic lateral sclerosis [ 20 ], chronic depression [ 21 ], cancer risk [ 22 – 24 ], or cardiovascular diseases [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

Trace element contents in toenails are related to regular physical activity in older adults

et al. 2017

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The aim was to assess the trace element contents in toenails of older adults and its association with regular physical activity. Cross-sectional multicentre study in Spain, collecting data from a random sample of 380 participants (54% female) aged 55–80 years (men) and 60–80 years (women) with no previously documented cardiovascular disease. Physical activity performed was measured using the Minnesota Leisure-time Physical Activity Questionnaire. The 25 most inactive and 25 most active individuals for each sex were selected for this study (final sample n = 100). Anthropometric measurements were performed and toenail samples collected for calcium (Ca), chromium (Cr), iron (Fe), cobalt (Co), nickel (Ni), zinc (Zn), selenium (Se) and mercury (Hg) analysis. Significant differences between sexes were reported in Ca concentrations, women having lower concentrations than men. No differences were reported in trace element contents between active and inactive men. Active women showed higher Ca, Cr, Fe, Co, and Zn and lower Hg contents than their inactive peers (all p<0.05). Inactive women showed lower Ca and Co levels (735.0 mg/kg and 4.5 μg/kg, respectively) than inactive men (1170.0 mg/kg and 7.9 μg/kg, respectively). Active women had lower Ca and higher levels of Cr (936.0 mg/kg and 1230.0 μg/kg, respectively) than active men (1070.0 mg/kg and 522.0 μg/kg, respectively). The present data added new information on the element contents in toenails of healthy Spanish older adults. The concentration of trace elements was similar in both sexes except for Ca which were lower in women. The trace element contents in women’s toenails, but not in men, were markedly influenced by physical activity, with higher levels of Ca and Fe and lower Hg among active females.

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Section: Introductionmentioning

confidence: 99%

Trace element contents in toenails are related to regular physical activity in older adults

et al. 2017

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“…Selenium, as an essential micronutrient which is present in large quantities in Brazil nuts and has good bioavailability, supports physiological processes such as immune system modulation and thyroid hormone regulation. As an antioxidant, it protects the body against the harmful effects of free radicals and also prevents the accumulation of heavy metals 6,69 . Due to their wealth of nutritional and functional compounds, Brazil nuts and the oil obtained from them can be used to produce pharmaceuticals, foods, and skin care products 70,71 .…”

Section: Brazil Nut Oilmentioning

confidence: 99%

“…The kernel, the edible part of macadamia, contains more than 60 oil44 . The results of research carried out by Kaijser et al29 indicate varying oil content[69][70][71][72][73][74][75][76][77][78] in different varieties of macadamia nut. Macadamia oil, in addition to saturated fatty acids 13.2- 17.8 , contains polyunsaturated fatty acids 2.8-4.7 and large amounts of monounsaturated fatty acids…”

mentioning

confidence: 99%

Nut Oils and their Dietetic and Cosmetic Significance: a Review

Michalak

Kiełtyka-Dadasiewicz

2019

J. Oleo Sci.

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INTRODUCTION Tree nuts rank third, behind spices and fruits, in terms of content of bioactive constituents 1. Tree nuts, dry fruits with a single seed in which the ovary wall hardens at maturity, are a rich source of phytochemicals with multi-faceted effects 2, 3. Nuts have played an important role in the diet of many cultures, due to their wealth of nutrients, high energy value, and vast variety of flavours. Nuts are used as an ingredient in many dishes, such as snacks roasted and

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“…In an elegant clinical study Martens et al 4 compared selenium nutritional status of 41 preschool children in Macapa with 88 children from Belém, two cities in the Brazilian Amazon, a geographical region with seleniferous soils. Selenium intake was excessive in both preschool groups but was much greater in Macapa children (155.30 mg/d) whose school meals included Brazil nuts.…”

Section: Accepted Manuscriptmentioning

confidence: 99%