AMP1-1通过通过微生物群-肠-骨轴减少外围5-HT含量,减轻无重量大鼠的骨损失
Fan Yang1, Qiuxin Yan1, Yunhao Wang1
1School of Life Science and Technology, Harbin Institute of Technology, No. 2 Yi Kuang Street, Harbin 150001, China.
概括
亚特拉提洛德巨头多糖1-1 (AMP1-1) 通过调节肠道微生物群和恢复肠道屏障,保护免受无重量诱导的骨质损失. 这种天然化合物在微重力环境中为骨健康提供了有前途的治疗策略.
科学领域:
- 航空航天医学 航空航天医学
- 药理学 药理学是指药理学的学科.
- 微生物学 微生物学
背景情况:
- 无重量诱导的骨损失 (WIBL) 是太空飞行中的一个重要问题.
- 目前针对WIBL的治疗方法有局限性和副作用.
- 需要新的治疗策略来对抗微重力下的骨质损失.
研究的目的:
- 研究Atractylodes macrocephalon polysaccharide1-1 (AMP1-1) 的抗WIBL作用背后的机制.
- 为了确定WIBL.的潜在治疗点.
- 为开发新药物治疗骨质损失疾病提供见解.
主要方法:
- 微型计算机断层扫描 (Micro-CT),机械检测和西布局 (Western Blot) 评估了骨的健康状况.
- 组织病理学,免疫组织化学 (IHC) 和WB评估了肠道屏障.
- 便微生物群移植 (FMT) 和16S rDNA测序分析了肠道微生物群的变化.
主要成果:
- AMP1-1增强了骨质量,改善了骨硬度,并增加了骨质生成活性.
- AMP1-1恢复了肠染色胺细胞功能,降低了5-HT水平,并修复了肠道屏障.
- FMT证实了肠道微生物群在AMP1-1对骨质损失的保护作用中的作用.
结论:
- 在大鼠中,AMP1-1通过调节微生物群-肠-骨轴来保护WIBL.
- 该机制涉及调节骨组织中的5-HT含量和新陈代谢.
- 这项研究强调AMP1-1作为微重力诱导的骨损失的潜在天然治疗剂.
更多相关视频
04:24Proper Positioning and Restraint of a Rat Hind Limb for Focused High Resolution Imaging of Bone Micro-architecture Using In Vivo Micro-computed Tomography
Published on: November 22, 2017
9.9K
03:56Author Spotlight: Exploring the Impact of Lingnan Fire-Needle Therapy in Osteoporosis Intervention
Published on: April 26, 2024
507
相关概念视频
01:40Bone Remodeling
38.1K
Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
38.1K
01:29Bone Disorders
3.4K
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
3.4K