生物年龄加速预测骨质疏松症和减少长寿在一个大前景队列中的预测
Rui Zhang1, Wanyang Zhong1, Yuelan Gao2
1Center of Regenerative Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, China.
Bone
|August 15, 2025
概括
加快的生物衰老预测骨质疏松症并缩短寿命. 这一发现表明,生物衰老加速 (BAA) 可以改善早期风险识别,并为骨健康提供信息干预.
科学领域:
- 老年学是一门学科.
- 肌肉骨健康 肌肉骨健康
- 生物标志物 生物标志物
背景情况:
- 骨质疏松症是一种常见的与年龄相关的疾病,但仅仅是时间学年龄不足以预测风险.
- 生物衰老加速 (BAA) 可能为预测骨质疏松症和缩短寿命提供更准确的生物标志物.
研究的目的:
- 研究生物衰老加速 (BAA) 与患骨质疏松症的风险之间的关联.
- 为了检查BAA和全因死亡率之间的关系.
- 评估BAA和多基因风险评分 (PRS) 对骨质疏松风险的综合影响.
主要方法:
- 分析了来自293224名骨质疏松症免费参与者的英国生物库数据.
- 使用克莱梅拉-双方法生物年龄 (KDM-BA) 和PhenoAge模型估计BAA.
- 多变量考克斯模型评估BAA和PRS与发生骨质疏松症和死亡率的关联.
主要成果:
- 增加的BAA (KDM-BA和PhenoAge加速) 与发生骨质疏松症的更高风险显著相关.
- 在BAA的最高三位数显示,与最低三位数相比,骨质疏松症的风险增加了38-43%.
- 高BAA和高PRS显示出强烈的附加效应,几乎使骨质疏松症风险增加了三倍.
- 加速衰老与45岁预期寿命减少1.3-1.8年有关.
结论:
- 加快的生物衰老是骨质疏松症和过早死亡的独立预测因素.
- 将BAA纳入临床评估可以改善早期识别患有骨质疏松症风险的个体.
- BAA评估可以支持针对性干预,以保持骨健康和促进健康的衰老.
更多相关视频
08:46Studying Age-dependent Genomic Instability using the S. cerevisiae Chronological Lifespan Model
Published on: September 29, 2011
15.7K
10:39A Suppressor Screen for the Characterization of Genetic Links Regulating Chronological Lifespan in Saccharomyces cerevisiae
Published on: September 17, 2020
6.4K
相关概念视频
Bone Disorders
3.9K
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...
3.9K
Aging
182
Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
182
The Effect of Aging on Tissues
2.4K
Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
2.4K
Changes in the Appendicular Skeleton with Age
2.2K
The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
2.2K
Longitudinal Research
12.5K
Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
12.5K
Hormones and Bone Tissue
2.9K
The endocrine system produces and secretes hormones, which interact with the skeletal system. These hormones control bone growth, maintain bone once it is formed, and remodel it.
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...
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...
2.9K
