与药物相关的骨缩背后的机制
Kyeongho Lee1, Kihun Kim2,3, June Yeon Kim1
1Department of Oral Histology and Developmental Biology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea.
Oral diseases
|November 18, 2024
概括
与药物相关的下巴骨硬化 (MRONJ) 发病过程涉及减少骨再吸收和血管生成的循环. 这种恶性循环,加剧了某些疗法,导致骨亡.
科学领域:
- 口腔和牙面部外科手术
- 在瘤学瘤学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 与药物相关的下巴骨硬化 (MRONJ) 是一种严重的疾病,影响了接受抗吸收或抗血管生成疗法的患者.
- 目前对MRONJ病变的理解有限,这阻碍了有效的预防和治疗策略的开发.
- 骨缩是与这些医疗治疗相关的严重并发症.
研究的目的:
- 审查最近关于MRONJ病变的研究.
- 提出一种新的假设,解释抗吸收/抗血管生成疗法与MRONJ之间的联系.
- 阐明结合性骨再吸收和血管生成在MRONJ发育中的作用.
主要方法:
- 进行了对科学文献的全面叙事审查.
- 搜索的数据库包括PubMed,Scopus,谷歌学者和科学网.
- 专注于MRONJ病变的相关研究被系统地检索出来.
主要成果:
- 一个拟议的假设将减少的骨质再吸收和血管生成联系在一起,创造了一个有害的循环.
- 这一循环是由骨质母细胞衍生的血管内皮生长因子驱动的,解释了MRONJ的发育.
- 降低血管新生增强了细菌感染诱导的亡,特别是在大骨.
结论:
- 这种新的假设为理解MRONJ病变的产生提供了一个框架.
- 这种理解对于开发针对MRONJ的有针对性的预防和药物干预措施至关重要.
- 未来的研究可以建立在这个假设的基础上,以推进MRONJ管理.
相关概念视频
Osteoclasts in Bone Remodeling
2.8K
Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during...
2.8K
Bone Remodeling
38.2K
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.
38.2K
Bone 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
Role of Vitamins in Maintaining Bone Health
3.2K
The growth and maintenance of bone are regulated by a combination of nutritional factors, including vitamins, such as vitamin A, B12, C, D, and K.
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...
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...
3.2K
Essential Minerals for Bone Health
3.8K
The minerals contained in all of the food we consume are essential for our organ systems. However, certain essential minerals, such as calcium, phosphorus, magnesium, manganese, and fluoride, largely affect bone health.
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
3.8K
Drug Distribution: Tissue Binding
2.6K
Upon entering the systemic circulation, drugs can distribute into the interstitial and intracellular fluid of various tissue cells. This distribution is facilitated by the binding of drugs to different cellular components within tissues, which may lead to drug accumulation in specific areas. Drugs bound to tissue components serve as reservoirs that release free drugs back into the system, prolonging the drug's overall action. However, this accumulation can also result in local toxicity.
For...
For...
2.6K


