相关实验视频
Updated: Jul 2, 2025

Estrogen-Like Effect of Bazi Bushen Capsule in Ovariectomized Rats
Published on: April 7, 2023
针对PRME在调节绝经后骨质疏松期间骨重塑中的作用
Anish Rajamohanan Jalaja1, Aswathy Nair1,2, Vijayalakshmi Bindumadhavan3
1Department of Biochemistry, University of Kerala, Kariavattom Campus, Trivandrum, Thiruvananthapuram, 695581, India Tel.
普特罗斯姆·鲁比尼索姆 (Pterospermum rubiginosum) 甲醇树皮提取物 (PRME) 在治疗绝经后骨质疏松症 (PMO) 中表现有前途. 这种天然提取物在动物模型中改善了骨矿物质密度,并调节了骨重塑标记物,没有观察到毒性.
科学领域:
- 药理学 药理学是指药理学的学科.
- 骨生物学 骨生物学 骨生物学
- 自然产品研究自然产品研究
背景情况:
- 绝经后骨质疏松症 (PMO) 的特点是雌激素缺乏,导致骨质减少和骨折风险增加.
- 目前对PMO的治疗有局限性,需要探索新型治疗剂.
研究的目的:
- 评估Pterospermum rubiginosum甲醇树皮提取物 (PRME) 在绝经后骨质疏松症小鼠模型中的体内骨质效率.
- 研究PRME的植物化学物质与关键骨重塑因子的分子相互作用.
主要方法:
- 对转录因子NFATC1.1.进行了分子对接研究.
- 在雌性Sprague Dawley大鼠中建立了一个绝经后骨质疏松症模型,分为假控制,骨质疏松控制,PRME治疗和阿伦德罗纳特治疗组.
- 评估了骨矿物质密度 (BMD),骨矿物质含量 (BMC) 和血清骨改造标记物 (酸耐酸酸酶5b和甲素-K).
主要成果:
- PRME证明了与植物化学配体的显著相互作用,显示了与NFATC1.1.的低结合能.
- 治疗PRME导致血清中耐酸酸酶5b和cathepsin-K水平显著增加.
- 与骨质疏松症对照组相比,DEXA扫描显示PRME治疗的老鼠的总骨矿物质含量和密度显著增加.
- 一项长期毒性研究表明,PRME在6个月内在100毫克/体重千克的剂量下是无毒的.
结论:
- 在绝经后的骨质疏松症模型中,Pterospermum rubiginosum甲醇树皮提取物 (PRME) 显示出显著的骨质生成潜力.
- 通过调节骨重塑标记物和增强BMD,PRME有效地保护与雌激素缺乏相关的骨损失.
- PRME代表了一种安全而有前途的天然治疗剂,用于治疗绝经后骨质疏松症.
更多相关视频
07:20Author Spotlight: Integrating Traditional Chinese Medicine with Modern Pharmacology and Genomics for Assessing Postmenopausal Osteoporosis in Mice
Published on: August 23, 2024
11:47A Novel in vivo Gene Transfer Technique and in vitro Cell Based Assays for the Study of Bone Loss in Musculoskeletal Disorders
Published on: June 8, 2014
相关概念视频
Bone Remodeling
Osteoclasts in Bone Remodeling
Bone Disorders
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...
Hormones and Bone Tissue
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
Role of Vitamins in Maintaining Bone Health
Vitamin A
Vitamin A is involved in the process of bone remodeling. Retinoic acid, the active metabolite of Vitamin A, has nuclear receptors in osteoblasts and osteoclasts, which are involved in bone remodeling.
Vitamin B12
Vitamin B12 acts as a cofactor during the formation of osteoblast-related proteins, such as osteocalcin. Vitamin B12 plays a role...
Menopause