相关实验视频
Updated: Sep 18, 2025

08:49
Models of Bone Metastasis
Published on: September 4, 2012
42.4K
计算机断层扫描的骨质硬化变化预测了骨质细胞转移的前列腺癌的疾病进展和低生存率
Meiting Chen1, Zhenhua Yang2,3,4, Shuai Yang5
1Department of Medical Oncology, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.
International journal of surgery (London, England)
|June 23, 2025
概括
在前列腺癌 (PC) 中的骨质硬化变化 (OCs) 与骨质细胞转移相关,与更糟糕的生存率有关. 这些OC可能表明PC患者的疾病进展和降低整体存活率.
科学领域:
- 在瘤学瘤学.
- 放射学 放射学是一门学科.
- 医疗成像医学成像
背景情况:
- 放射性无进展生存率 (rPFS) 可能无法完全捕捉前列腺癌 (PC) 的瘤进展.
- 在患有骨质细胞转移的PC患者中,骨质硬化变化 (OCs) 的预后价值尚不清楚.
研究的目的:
- 调查前列腺癌 (PC) 患有骨质细胞转移的前列腺癌患者骨质硬化变化 (OCs) 的预后意义.
- 确定OCs是否可以作为疾病进展和生存结果的生物标志物.
主要方法:
- 分析了一组训练队列 (152名PC患者) 和一组验证队列 (41名PC患者) 患有骨质细胞转移.
- 根据计算机断层扫描 (CT) 发现,患者被分类为有OC和没有OC (NOC) 的组.
- 临床结果,包括rPFS和整体存活期 (OS),在各组之间进行了比较.
主要成果:
- 与没有OC的患者相比,患有OC的患者的放射性进展率显著更高 (72.8%对51.0%).
- 与NOC组相比,OC组的RPFS (11.6个月与52.9个月) 和OS (30.7个月与67.1个月) 显著差.
- 多变量分析证实了OCs是贫困RPFS和OS的独立预后因素,结果得到了外部验证.
结论:
- 骨质硬化变化 (OCs) 与患有骨质细胞转移的PC患者的不良生存结果有关.
- 在这种患者群体中,OCs可以作为潜在的生物标志物来预测疾病进展和减少存活率.
相关概念视频
Osteoclasts in Bone Remodeling
3.2K
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...
3.2K
Bone Disorders
4.0K
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...
4.0K
Tumor Progression
6.5K
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
6.5K
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT
129
Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...
129

