Tianjin Medical Journal ›› 2023, Vol. 51 ›› Issue (5): 518-521.doi: 10.11958/20221648

• Clinical Research • Previous Articles     Next Articles

Effects of thyroid hormones and sex hormones on male fertility

ZHANG Zhengang(), LI Xiaona, WANG Wenjuan, ZHANG Yongtian, LI Binye()   

  1. Reproductive Center of Qinghai Provincial People's Hospital, Qinghai 810000, China
  • Received:2022-10-17 Revised:2022-12-09 Published:2023-05-15 Online:2023-05-05
  • Contact: LI Binye E-mail:978230988@qq.com;598877924@qq.com

Abstract:

Objective To explore effects of thyroxine and sex hormone on male fertility. Methods A total of 481 male infertile patients were included in this study. Semen routine analysis and fertility index calculation were performed in each group. Sperm DNA fragmentation rate was detected. Chemiluminescence method was used to detect hyroid hormones [free triiodothy ronine (FT3), free tetraiodothyronine (FT4), thyrotropin (TSH)] and sex hormones [luteinizing hormone (LH), follicle stimulating hormone (FSH), testosterone (T), prolactin (PRL) andestradiol (E2)]. According to thyroxine levels,patients were divided into the low hormone level group (61 cases), the normal hormone level group (376 cases) and the high hormone level group (44 cases). The correlation between thyroid hormone and sex hormone and the correlation between T/E2, T/FSH, T/LH, T/PRL, semen parameters and fertility index were analyzed. Results Compared with the normal hormone group, the forward motion rate was decreased in the low hormone group, the forward motion rate and fertility index were decreased in the high hormone group, and the malformation rate was increased (P<0.05). FT3 was negatively correlated with PRL level, FT4 was negatively correlated with FSH and E2 level, and TSH was positively correlated with PRL level (P<0.05). T/E2 was negatively correlated with the malformation rate, T/FSH was positively correlated with total sperm count, sperm concentration, forward motility rate and fertility index, but negatively correlated with the malformation rate (P<0.05). T/LH was positively correlated with total sperm count and sperm concentration (P<0.01). T/PRL was negatively correlated with the deformity rate. Conclusion Abnormal thyroid hormone levels can affect male fertility, and the effect is more pronounced at higher levels.

Key words: thyroid hormones, semen analysis, DNA fragmentation, sex hormones, fertility

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