What question did this study set out to answer?

To systematically assess thiamine status and associated physiological impairments across multiple animal classes in the Northern Hemisphere.

December 13, 2016Scientific ReportsOpen Access

Widespread episodic thiamine deficiency in Northern Hemisphere wildlife

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Authors

LBLennart BalkStockholm University PHPer-Åke HägerrothStockholm University HGHanna GustavssonStockholm University

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Implication

Biochemical investigation uncovers widespread episodic thiamine deficiency in birds, fishes, and bivalves, suggesting dietary depletion across aquatic and terrestrial food webs.

Key Points

To systematically assess thiamine status and associated physiological impairments across multiple animal classes in the Northern Hemisphere.
Quantified phosphorylated forms of thiamine and evaluated the activities and concentrations of holoenzyme and apoenzyme forms of thiamine-dependent enzymes in bivalves, ray-finned fishes, and birds.
Evaluated secondary physiological and behavioral endpoints, including growth, liver size, blood composition, tissue histopathology, swimming endurance, parasite load, and reproductive parameters across wide geographic ranges.
Episodic thiamine deficiency occurred across all three animal classes, driven primarily by insufficient thiamine availability in the food web rather than impaired intracellular phosphorylation.
Thiamine depletion induced significant sublethal and lethal secondary pathologies, impairing swimming endurance, altering blood chemistry, increasing parasite infestation, and decreasing reproductive success.

Cite This Study

Balk et al. (2016) studied this question.

synapsesocial.com/papers/6aaf2f5b326a6eb7c910f8c4 https://doi.org/10.1038/srep38821

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Implication

Biochemical investigation uncovers widespread episodic thiamine deficiency in birds, fishes, and bivalves, suggesting dietary depletion across aquatic and terrestrial food webs.

Widespread episodic thiamine deficiency in Northern Hemisphere wildlife

Discussion

Member takes

Implication

Key Points

Cite This Study

Widespread episodic thiamine deficiency in Northern Hemisphere wildlife

Discussion

Member takes

Implication

Key Points

Cite This Study

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