相关实验视频
Updated: May 12, 2025

08:41
Mouse Round Spermatid Injection
Published on: January 26, 2024
600
亚子精子症中的小RNA景观:对男性不孕不育和精子检索的影响 - 一项初步研究
Maria-Anna Kyrgiafini1, Aris Kaltsas2, Alexia Chatziparasidou1,3
1Laboratory of Genetics, Comparative and Evolutionary Biology, Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500 Larissa, Greece.
International journal of molecular sciences
|May 7, 2025
概括
微RNA (miRNA) 表达在患有亚精子症的男性的丸组织中不同,影响精子存在和怀孕成功. 这些发现为男性不孕症诊断提供了潜在的生物标志物.
科学领域:
- 生殖生物学 生殖生物学
- 分子遗传学 分子遗传学
- 基因组学就是基因组学.
背景情况:
- 微RNAs (miRNAs) 是精子生成的关键调节者.
- 亚精子症中的特定miRNA表达模式及其与生育结果的相关性尚未得到充分理解.
研究的目的:
- 为了研究异性miRNA表达在丸组织的阿佐精子患者.
- 为了将miRNA模式与精子存在和辅助生殖妊娠结果相关联.
主要方法:
- 小RNA测序在40个丸组织样本上进行,这些样本来自异常性阿佐和加密动物的患者.
- 差异表达分析确定了与精子存在 (高,罕见,无) 和怀孕成功相关的miRNAs.
- 进行了功能丰富分析,以了解miRNA变化的生物影响.
主要成果:
- 观察到不同的miRNA表达特征与精子存在和怀孕结果相关.
- 在精子存在率高的样本中注意到miRNA表达的减少.
- 与细胞存活和分化途径相关的上调的miRNAs在受损的精子生成中被发现.
- 在未成功怀孕的样本中发现了受损的调节通路 (例如ESR,IL-4/IL-13信号传递).
结论:
- 微RNA介导的调节差异在亚精子患者中很明显.
- 特定的miRNA可以作为精子检索成功和生育能力的潜在生物标志物.
- 为了加强男性不孕症诊断,需要进一步的验证和多omics研究.
相关概念视频
Infertility in Males
176
Male infertility affects millions of couples worldwide, arising from various factors that impact different stages of the reproductive process. An endocrine imbalance resulting from conditions like hypogonadism, Klinefelter syndrome, or pituitary disorders can disrupt hormone levels and reduce sperm production. Testicular defects, such as tumors, cryptorchidism, atrophic testes, abnormal sperm morphology, and low sperm count or motility, may arise due to genetic factors, structural...
176
Spermatogenesis
101.8K
Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male...
101.8K
The Y Chromosome Determines Maleness
6.4K
The Y chromosome is a sex chromosome found in several vertebrates and mammals, including humans. In addition to 22 pairs of autosomes, the human males have one X chromosome and one Y chromosome. In these organisms, the presence or absence of the Y chromosome determines the development of male traits.
Evolution
Around 300 million years ago, the two sex chromosomes diverged from two identical autosomal chromosomes. Over time, the Y chromosome has lost most of its genes, shrinking in size....
Evolution
Around 300 million years ago, the two sex chromosomes diverged from two identical autosomal chromosomes. Over time, the Y chromosome has lost most of its genes, shrinking in size....
6.4K

