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相关概念视频

The Y Chromosome Determines Maleness02:19

The Y Chromosome Determines Maleness

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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....
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Genome-wide Association Studies-GWAS01:11

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Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
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Sex-linked Disorders

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Like autosomes, sex chromosomes contain a variety of genes necessary for normal body function. When a mutation in one of these genes results in biological deficits, the disorder is considered sex-linked.
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相关实验视频

Updated: Jun 16, 2025

Author Spotlight: Creating a Versatile Experimental Autoimmune Encephalomyelitis Model Relevant for Both Male and Female Mice
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多发性硬化和异常的精子:一个双向的双样本门德尔随机化研究.

Bo Li1, Lingang Zhang2, Qi Li3

  • 1Reproductive Medicine Department, Yuncheng Central Hospital affiliated to Shanxi Medical University, Yuncheng, Shanxi, China.

PloS one
|August 20, 2024
PubMed
概括

多发性硬化症 (MS) 与异常的精子有因果关系. 患有多发性硬化症的男性患有精子异常的风险增加,这凸显了对生殖健康的临床关注的必要性.

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科学领域:

  • 神经免疫学 神经免疫学
  • 生殖医学 生殖医学
  • 遗传流行病学遗传流行病学

背景情况:

  • 多发性硬化症 (MS) 是一种自身免疫性中枢神经系统疾病.
  • 观察性研究表明,MS和男性不孕症之间存在联系.
  • 多发性硬化和精子异常之间的因果关系仍未得到研究.

研究的目的:

  • 使用孟德尔随机化研究多发性硬化症和异常精子之间的潜在因果关系.
  • 评估MS是否是精子异常的风险因素.

主要方法:

  • 用单核酸多态 (SNPs) 的全基因组关联研究数据作为仪器变量.
  • 采用了双样本的孟德尔随机化 (MR) 与逆方差加权 (IVW),MR-Egger和MR-PRESSO.
  • 进行了敏感性分析,包括Cochran的Q,MR-Egger拦截,留出一个,和漏斗图.

主要成果:

  • 在MS和异常精子之间发现了显著的因果关系 (OR 1.090,95% CI [1.017-1.168],p = 0.014).
  • 敏感性分析证实了研究结果的准确性和可靠性.

结论:

  • 多发性硬化症似乎对精子异常有因果作用.
  • 患有多发性硬化症的男性患者面临同时发生精子异常的更高风险.
  • 临床医生应优先考虑MS男性的生殖和生育问题.