与典型发育的同龄人相比,自闭症谱系障碍学前儿童的miRNAs表达及其益生菌补充后的影响
Letizia Guiducci1, Manuela Cabiati1, Elisa Santocchi2
1CNR, Institute of Clinical Physiology, 56124 Pisa, Italy.
Journal of clinical medicine
|November 25, 2023
概括
改变的微RNA (miRNA) 概况与学龄前儿童的自闭症谱系障碍 (ASD) 和胃肠道障碍 (GID) 有关. 益生菌补充剂没有改变这些miRNA水平,但观察到与肠道健康标志物的相关性.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 遗传学 是一个
- 胃肠病学 胃肠病学
背景情况:
- 微生物群-肠-大脑轴越来越多地被认为是其在自闭症谱系障碍 (ASD) 病理生理学中的作用.
- 微RNA (miRNA) 功能障碍与ASD和胃肠道疾病 (GID) 都有关,这表明它可能发挥调节作用.
研究的目的:
- 调查与ASD和GID相关的循环miRNA概况,与典型发育同龄人相比,在ASD的学龄前儿童中研究ASD和GID.
- 评估益生菌补充剂对这些miRNA水平的影响及其与患有ASD儿童肠道健康标志物 (松林,乳酸) 的相关性.
主要方法:
- 在学龄前儿童中对特定的循环miRNAs (miR-197-5p,miR-424-5p,miR-500a-5p,miR-664a-5p用于ASD;miR-21-5p,miR-320a-5p,miR-31-5p,miR-223-5p用于GID) 的转录概况.
- 基线上ASD和典型发育 (TD) 组之间的miRNA表达的比较.
- 在ASD组6个月的益生菌补充剂后评估miRNA水平.
- 与血佐努林和乳酸铁素水平的相关性分析.
主要成果:
- 与TD对照组相比,ASD学龄前儿童显示ASD相关miRNAs的表达显著减少.
- 与GID相关的miRNAs (miR-320a-5p,miR-31-5p,miR-223-5p) 的表达水平在ASD中显著更高,而miR-21-5p则减少.
- 益生菌补充剂在ASD组中没有显著改变miRNA表达.
- 在基线时发现佐努林和miR-197-5p/miR-21-5p之间,以及补充后的乳酸和miR-223-5p之间存在显著的负相关性.
结论:
- 这项研究证实,与TD同龄人相比,ASD学龄前儿童的循环miRNA概况发生了变化.
- 益生菌补充剂没有改变ASD儿童的研究miRNA资料.
- 观察到的相关性表明,在ASD的背景下,特定的miRNA和肠道透性/健康标志物之间存在联系.
相关概念视频
Autism Spectrum Disorder
100
Autism spectrum disorder (ASD) is a neurodevelopmental condition marked by persistent deficits in social communication and interaction alongside restrictive and repetitive behaviors or interests. ASD is sometimes accompanied by intellectual impairment.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
100
MicroRNAs
3.0K
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...
3.0K


