Selenium intake from tuna in Galicia (Spain): Health risk assessment and protective role against exposure to mercury and inorganic arsenic

Melgar, M.J.; Núñez, Ricardo; García, M. Villegas

doi:10.1016/j.scitotenv.2019.133716

Cited by 20 publications

(8 citation statements)

References 74 publications

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“…Thus, some works have reported a good proportion between both elements in tuna [39,46,83]. In this sense, the muscle was the tissue with the lowest Se/THg concentration ratio (1.4/1), but the HBV Se was, in each specimen, positive (8.777 ± 1.500, 0.351-44.459), similar to that reported in the same and other tuna species [39,42,[46][47][48], or even greater than those reported in small pelagic species [84], and thus safe to consumers.…”

Section: Musclesupporting

confidence: 82%

“…However, the kinetic of this element in T. Thynnus specimens from the Mediterranean Sea is scarce (only Hg concentration in liver was reported). In addition, there are few studies regarding Se and Hg relation in tuna [39,42,[46][47][48], and to our knowledge, none in T. thynnus. On the other hand, the differences between sex have been scarcely studied [29,48,49].…”

Section: Discussionmentioning

confidence: 87%

“…where Se and Hg are molar concentrations (µmol kg −1 ) of these elements. A positive value of HBV Se is considered healthy [39,42]. The scale of the value proportionately reflects the Se deficit or surplus associated with eating that seafood [39].…”

Section: Discussionmentioning

confidence: 99%

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Tissue Distribution of Mercury and Its Relationship with Selenium in Atlantic Bluefin Tuna (Thunnus thynnus L.)

Belmonte

Muñoz

Santos-Echeandía

et al. 2021

IJERPH

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Mercury (Hg) is an important heavy metal to consider in marine predators, while selenium (Se) has a natural antagonistic effect on this metal in fish. The Atlantic bluefin tuna (ABFT, Thunnus thynnus) is a pelagic top-level predator of the trophic web and their Hg muscular content is an object of concern in food safety. Nevertheless, little is known about levels of this metal in remaining tissues, which may be important as by-product source, and its relationship with Se. Thus, concentration of both elements in liver, kidney, brain, gill and bone, in addition to muscle, of ABFT were determined. The kidney was the tissue with the highest concentration of Hg (Total-Hg, THg) and Se, and the Se/THg concentration ratio was similar in all tissues, except bone and muscle. The Selenium Health Benefit Value (HBVSe) was positive in each specimen and tissue, indicating that the Se plays an important role against Hg not only in the muscle.

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Section: Musclesupporting

confidence: 82%

Section: Discussionmentioning

confidence: 87%

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Tissue Distribution of Mercury and Its Relationship with Selenium in Atlantic Bluefin Tuna (Thunnus thynnus L.)

Belmonte

Muñoz

Santos-Echeandía

et al. 2021

IJERPH

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“…Such concentration range requires sample dilution and pre-treatment, which could add significant error into analysis. Alternatively, inductively coupled plasma-mass spectrometry (ICP-MS) is very often used due to the highest sensitivity and the best detection ability near to 0.1 µg L -1 [44][45][46] . However, the instrumental and analysis cost is one of the highest 47 .…”

Section: Selenium Determinationmentioning

confidence: 99%

Materials interacting with inorganic selenium from the perspective of electrochemical sensing

Filip

Vinter

Čechová

et al. 2021

Analyst

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“…Zn is required in the stabilization of the structure of many proteins at all levels of cellular signal transduction ( 13 ). Finally, Se plays a fundamental role in reproduction, thyroid function, DNA replication and protection against microbes and oxidant compounds ( 14 ). Therefore, fish is considered one of the healthiest foods on global scale and is a fundamental part of a healthy and well-balanced diets.…”

Section: Introductionmentioning

confidence: 99%

Health benefits of bluefin tuna consumption: (Thunnus thynnus) as a case study

Chamorro,

Cassani,

Garcia-Oliveira

et al. 2024

Front. Nutr.

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Consumers are increasingly interested in food products with high nutritional value and health benefits. For instance, fish consumption is linked with diverse positive health benefits and the prevention of certain widespread disorders, such as obesity, metabolic syndrome, or cardiovascular diseases. These benefits have been attributed to its excellent nutritional value (large amounts of high-quality fatty acids, proteins, vitamins, and minerals) and bioactive compounds, while being relatively low-caloric. Atlantic bluefin tuna (Thunnus tynnus) is one of the most consumed species worldwide, motivated by its good nutritional and organoleptic characteristics. Recently, some organizations have proposed limitations on its consumption due to the presence of contaminants, mainly heavy metals such as mercury. However, several studies have reported that most specimens hold lower levels of contaminants than the established limits and that their richness in selenium effectively limits the contaminants’ bioaccessibility in the human body. Considering this situation, this study aims to provide baseline data about the nutritional composition and the latest evidence regarding the beneficial effects of Atlantic bluefin tuna consumption. A review of the risk-benefit ratio was also conducted to evaluate the safety of its consumption, considering the current suggested limitations to this species’ consumption.

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Selenium intake from tuna in Galicia (Spain): Health risk assessment and protective role against exposure to mercury and inorganic arsenic

Cited by 20 publications

References 74 publications

Tissue Distribution of Mercury and Its Relationship with Selenium in Atlantic Bluefin Tuna (Thunnus thynnus L.)

Tissue Distribution of Mercury and Its Relationship with Selenium in Atlantic Bluefin Tuna (Thunnus thynnus L.)

Materials interacting with inorganic selenium from the perspective of electrochemical sensing

Health benefits of bluefin tuna consumption: (Thunnus thynnus) as a case study

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