High concentration of dopamine treatment may induce acceleration of human sperm motility

Reproductive medicine and biology

article

Hiroki Kanno¹  Shouhei Kurata¹  Yuuki Hiradate³  Kenshiro Hara¹  Hiroaki Yoshida²  Kentaro Tanemura¹ 

[1] Laboratory of Animal Reproduction and Development, Graduate School of Agricultural Science, Tohoku University;Sendai ART Clinic;Research Institute for Microbial Diseases, Osaka University

关键词: dopamine;    dopamine receptor;    neurotransmitter agents;    sperm motility;    spermatozoa;   

DOI  :  10.1002/rmb2.12482

学科分类：工业工程学

来源: Wiley

【 摘 要 】

Purpose 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. Methods 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. Results 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. Conclusion 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.

【 授权许可】

CC BY|CC BY-NC|CC BY-NC-ND