相关实验视频

Updated: Jan 9, 2026

Murine Prostate Micro-dissection and Surgical Castration
08:49

Murine Prostate Micro-dissection and Surgical Castration

Published on: May 11, 2016

47.4K

男性不孕症和患前列腺癌的风险:一个双向的双样本孟德尔随机化研究

Junjie Shao1, Aireti Apizi1, Xiaojie Zheng2

  • 1Department of Urology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China.

European journal of medical research
|December 2, 2025
PubMed
概括

这项研究发现,男性不孕不育和前列腺癌 (PCa) 风险之间没有因果关系. 门德尔的随机化分析证实没有证据表明这两个方向之间的关系.

关键词:
全基因组关联研究研究.逆方差加权的逆方差加权男人不孕不育的情况门德尔的随机化前列腺癌是什么意思 前列腺癌是什么意思

更多相关视频

Transgenic Rodent Assay for Quantifying Male Germ Cell Mutant Frequency14:45

Transgenic Rodent Assay for Quantifying Male Germ Cell Mutant Frequency

Published on: August 6, 2014

16.7K
Mouse Round Spermatid Injection08:41

Mouse Round Spermatid Injection

Published on: January 26, 2024

1.3K

相关概念视频

Infertility in Males01:23

Infertility in Males

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...
512
Randomized Experiments01:13

Randomized Experiments

The randomization process involves assigning study participants randomly to experimental or control groups based on their probability of being equally assigned. Randomization is meant to eliminate selection bias and balance known and unknown confounding factors so that the control group is similar to the treatment group as much as possible. A computer program and a random number generator can be used to assign participants to groups in a way that minimizes bias.
Simple randomization
Simple...
8.8K
Disorders of the Male Reproductive System01:20

Disorders of the Male Reproductive System

Men's health issues are increasingly recognized as significant, with several conditions posing common threats. Among these, testicular cancer is especially prevalent in younger men, particularly those aged 20 to 35 years. The disease often manifests as a painless mass in the testicles, sometimes accompanied by a sensation of heaviness or a dull ache.
Prostate disorders are another major concern. These conditions can impair urinary flow due to the prostate's location around the urethra....
3.9K
The Ratio of X Chromosome to Autosomes02:45

The Ratio of X Chromosome to Autosomes

In most organisms, sex is determined by the ratio of X and Y chromosomes. However, in some organisms, such as Drosophila and C.elegans, sex is determined by the ratio of the number of X chromosomes to the number of sets of autosomes. The Y chromosome in Drosophila is active but does not determine sex. It contains genes responsible for the production of sperms in adult flies.  
Normal male Drosophila has a ratio of one X chromosome to two sets of autosomes. In contrast, normal female...
9.4K
Spermatogenesis01:41

Spermatogenesis

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...
121.3K
The Y Chromosome Determines Maleness02:19

The Y Chromosome Determines Maleness

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....
7.8K