High concentration of dopamine treatment may induce acceleration of human sperm motility
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- Hiroki Kanno
- Laboratory of Animal Reproduction and Development, Graduate School of Agricultural Science Tohoku University Sendai Japan
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- Shouhei Kurata
- Laboratory of Animal Reproduction and Development, Graduate School of Agricultural Science Tohoku University Sendai Japan
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- Yuuki Hiradate
- Research Institute for Microbial Diseases Osaka University Suita Japan
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- Kenshiro Hara
- Laboratory of Animal Reproduction and Development, Graduate School of Agricultural Science Tohoku University Sendai Japan
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- Hiroaki Yoshida
- Sendai ART Clinic Sendai Japan
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- Kentaro Tanemura
- Laboratory of Animal Reproduction and Development, Graduate School of Agricultural Science Tohoku University Sendai Japan
抄録
<jats:title>Abstract</jats:title><jats:sec><jats:title>Purpose</jats:title><jats:p>In humans, catecholamines (including dopamine) have been identified in semen and fallopian tubes, while dopamine D2 receptors (D2DR) are found in the sperm midpiece region. How dopamine dose affects human sperm function and whether dopamine treatment is useful in assisted reproductive technology is unclear.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>Sperm samples were obtained from patients with normal semen parameters undergoing fertility treatment. We investigated the effects of dopamine treatment on tyrosine phosphorylation and sperm motility. Sperm motility was analyzed using the computer‐assisted sperm analysis (CASA) system.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>This study revealed that various dopamine concentrations (0.1–100 μM) did not increase sperm tyrosine phosphorylation. Progressive motility increased substantially when treated with high concentrations of dopamine (10 and 100 μM) and was blocked by raclopride (a D2DR antagonist). After 24‐h sperm culture, the addition of 10 μM dopamine significantly increased curvilinear velocity and amplitude of lateral head displacement, which are indicators of hyperactivation.</jats:p></jats:sec><jats:sec><jats:title>Conclusion</jats:title><jats:p>Dopamine did not affect tyrosine phosphorylation, but increased sperm motility. High concentrations of dopamine were more effective to accelerate sperm motility in cases where sperm motile capacity was low.</jats:p></jats:sec>
収録刊行物
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- Reproductive Medicine and Biology
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Reproductive Medicine and Biology 21 (1), 2022-01
Wiley
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詳細情報 詳細情報について
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- CRID
- 1360017280625797248
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- ISSN
- 14470578
- 14455781
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- データソース種別
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- Crossref
- KAKEN