IBD:低剂量甲氨蝶呤治疗炎症性肠病患者不影响精液和精子的质量

2021-09-10 MedSci原创 MedSci原创

炎症性肠病 (IBD) 以及由此导致的慢性炎症会影响处于生育年龄的男性的生育能力。而且,男性在围孕期的药物暴露越来越受到关注。

      炎症性肠病 (IBD) 以及由此导致的慢性炎症会影响处于生育年龄的男性的生育能力。而且,男性在围孕期的药物暴露越来越受到关注,甲氨蝶呤 (MTX) 是一种叶酸拮抗剂,是一种廉价的免疫药物,广泛用于治疗 IBD、风湿病和皮肤病。它是一种已知的女性生育致畸剂,因此在怀孕和哺乳期间禁用。根据胃肠病学指南和美国食药监局的规定,男性患者在围孕期也应该禁止使用甲氨蝶呤并且需要再停药3 个月后方可备孕。传统上,男性生育能力是通过精液和精子来评估的。因此,本项研究旨在评估使用甲氨蝶呤治疗的患有炎症性疾病的男性患者的精子 DNA 完整性和基本精液参数的变化。

 

      研究人员将服用低剂量甲氨蝶呤维持治疗的 14 名IBD患者的精液样本与 40 名健康志愿者的样本进行了比较。此外,5 名患者未接受甲氨蝶呤治疗的患者也进行了配对比较。最后研究人员评估了所有患者的精子 DNA 片段化指数 (DFI)、浓度、运动性和形态,并在血液和精液中测量血液性激素和甲氨蝶呤水平。

 

      研究结果显示甲氨蝶呤治疗患者的 DNA 片段化指数与健康志愿者相当(DFI,11.5 VS 15.0;P = .06),并且配对样本中使用和停用甲氨蝶呤时 DFI 没有显着变化(DFI,12.0  VS 14.0;P  = 0.35)。接受甲氨蝶呤治疗的男性和健康志愿者的精子浓度、活力和形态没有差异。与治疗相比,治疗后精子进行性运动增加(65.0%  VS  45.0%,P = .04),但精子的运动能力波动都在 WHO 参考区间内。在血液中检测到所有甲氨蝶呤聚谷氨酸盐类型,但在精液中仅检测到1-型甲氨蝶呤聚谷氨酸盐。血清睾酮不受甲氨蝶呤治疗的影响。

图:不同治疗组之间精子质量的差异

      本项研究证实接受低剂量甲氨蝶呤治疗的患者的精子质量可与健康志愿者相媲美,而且甲氨蝶呤治疗不会增加精子 DNA 断裂程度。但是该研究不支持在治疗开始前对精液进行冷冻保存,也不支持在受孕前间隔 3 个月内进行甲氨蝶呤的治疗。

 

原始出处:

Anne Grosen. Et al. Low-dose Methotrexate Therapy Does Not Affect Semen Parameters and Sperm DNA. Inflammatory Bowel Diseases.2021.

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    2021-09-12 bnurmamat
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    2021-09-12 hb2008ye
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