Effects of sturgeon fillet intake on top‐ranked Japanese female long‐distance runners

Effects of sturgeon fillet intake on top‐ranked Japanese female long‐distance runners

Aims The aim of this study is to investigate whether consumption of sturgeon fillets reduces the oxidative stress marker urinary 8‐hydroxy‐2′‐deoxyguanosine (8OHdG) in top‐ranked Japanese female long‐distance runners. Methods In a before‐and‐after study, nine professional long‐distance female athlet...

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Published in:The journal of obstetrics and gynaecology research Vol. 49; no. 8; pp. 2164 - 2174
Main Authors: Haraguchi, Naoki, Nakao, Hiroyuki, Sakakibara, Yoichi, Tamura, Hiroki, Nagahama, Kiyoko, Sakurai, Keiko, Sameshima, Hiroshi, Schauerte, Michael, Ikenoue, Tsuyomu, Katsuragi, Shinji
Format: Journal Article
Language:English
Published: Kyoto, Japan John Wiley & Sons Australia, Ltd 01-08-2023
Wiley Subscription Services, Inc
Subjects:
25OHD
8OHdG
athletes
Blood levels
Body fat
Creatinine
Deoxyguanosine
Dietary intake
Docosahexaenoic acid
Eicosapentaenoic acid
Exercise intensity
Fatigue
Fatty acids
Imidazole
n‐3 fatty acid
Oxidative stress
sturgeon
Urinalysis
Vitamin D
25OHD
athletes
sturgeon
n-3 fatty acid
8OHdG
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Summary:Aims The aim of this study is to investigate whether consumption of sturgeon fillets reduces the oxidative stress marker urinary 8‐hydroxy‐2′‐deoxyguanosine (8OHdG) in top‐ranked Japanese female long‐distance runners. Methods In a before‐and‐after study, nine professional long‐distance female athletes ate 100 g/day of sturgeon fillets for 2 weeks. Urinalysis (8OHdG, an oxidative stress marker, and creatinine), blood tests (fatty acids and 25‐hydroxyvitamin D [25OHD]), exercise intensity, subjective fatigue, muscle elasticity, muscle mass, body fat mass, and nutritional intake using image‐based dietary assessment (IBDA) were compared before, immediately after, and 1 month after the intervention. Results Consumption of sturgeon fillets suppressed 8OHdG (p < 0.05) in the increased exercise intensity female athletes. Eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and 25OHD levels in blood increased from before to immediately after and 1 month after the intervention (p < 0.05). IBDA showed that intake of n‐3 fatty acid increased after and one month after the intervention, whereas DHA, imidazole dipeptide and vitamin D intake increased after the intervention (p < 0.05) and then decreased after 1 month (p < 0.05). There were no significant changes in subjective fatigue, muscle elasticity, muscle mass, and body fat. Conclusions The results suggest that eating sturgeon fillets during intense training may increase blood levels of EPA, DHA, and 25OHD, which may suppress urinary oxidative stress (8OHdG) in top‐ranked Japanese long‐distance runners.
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ISSN:1341-8076
1447-0756
DOI:10.1111/jog.15711