相关实验视频

Updated: Sep 14, 2025

Preparation of Small RNA Libraries for Sequencing from Early Mouse Embryos

Preparation of Small RNA Libraries for Sequencing from Early Mouse Embryos

Published on: October 9, 2020

发育中的小鼠大脑中的性别偏差microRNA表达:多种机制驱动其起源

Susanna Szakats¹, Rachel Cannon¹, Megan J Wilson¹

¹Developmental Genomics Laboratory, Department of Anatomy, School of Biomedical Sciences, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand.

|July 18, 2025

概括

在发育中的小鼠大脑中,性别偏差的微RNA (miRNA) 表达受遗传,调节和荷尔蒙因素的影响. 这些机制有助于神经发育和疾病的性别差异.

科学领域:

神经科学是一个神经科学.
遗传学遗传学是一个
分子生物学分子生物学

背景情况:

发育中的大脑表现出性别偏差的微RNA (miRNA) 表达.
这种性别偏见是由复杂的遗传,调节和荷尔蒙因素驱动的.

研究的目的:

调查六种解释性偏差miRNA表达在E15.5小鼠大脑中的假设.
了解基因,调节和荷尔蒙影响对性别偏差miRNA表达的相互作用.

主要方法:

探索Y染色体链接,X无活化逃逸,性别偏差转录因子调节,miRNA-宿主基因共同调节,生物性别-miRNA处理相互作用和雌激素受体 (ER) 途径转录调节.
测试关于性别偏差miRNA表达的六个不同的假设.

主要成果:

证据支持所有测试的机制,除了Y染色体链接.
多种因素,包括遗传,调节和荷尔蒙影响,有助于性别偏差miRNA表达.

结论:

这些发现强化了发展中的大脑中miRNA表达驱动性相关差异的观点.
了解这些机制对于神经发育研究和理解神经发育障碍至关重要.

关键词:

芳香化是一种芳香化.雌二醇是雌二醇的一种.性染色体的性别染色体性激素性激素性激素性偏见的性别偏见这是一个微型RNA.

更多相关视频

Tissue-specific miRNA Expression Profiling in Mouse Heart Sections Using In Situ Hybridization

Tissue-specific miRNA Expression Profiling in Mouse Heart Sections Using In Situ Hybridization

Published on: September 15, 2018

Stereotactic Injection of MicroRNA-expressing Lentiviruses to the Mouse Hippocampus CA1 Region and Assessment of the Behavioral Outcome

Stereotactic Injection of MicroRNA-expressing Lentiviruses to the Mouse Hippocampus CA1 Region and Assessment of the Behavioral Outcome

Published on: June 10, 2013

相关概念视频

MicroRNAs

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...

Dosage Compensation

Dosage Compensation

In animals, gender is determined by the number and type of sex chromosome. For example, human females have two X chromosomes, and males have one X and one Y chromosome, whereas C.elegans with one X chromosome is a male, and the one with two X chromosomes is a hermaphrodite.
In addition to sexual development, the X chromosome has genes involved in autosomal functions such as brain development and the immune system. Therefore, males and females with distinct numbers of X chromosomes will...