孕期维生素D和后代骨折风险:这些关联是否持续到青春期中期?
Mia A Percival1, Kara B Anderson2, Julie A Pasco2,3,4,5
1Deakin University, IMPACT, The Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Geelong, VIC, 3220, Australia. mia.percival@research.deakin.edu.au.
怀孕期间母亲的维生素D水平对后代骨折风险的影响因性别而异,持续到青春期. 怀孕早期的维生素D含量较高,减少了男孩的骨折风险,但增加了女孩的骨折风险,这种模式在怀孕后继续存在.
科学领域:
- 生殖健康 生殖健康
- 儿童骨健康问题
- 营养科学 营养科学
背景情况:
- 怀孕期间母亲的维生素D状况与后代的骨健康有关.
- 以前的研究表明,母体25-基维生素-D (25(OH) D对10岁骨折的性别特异性影响.
- 怀孕中维生素D (VIP) 队列为研究这些关联提供了有价值的数据集.
研究的目的:
- 调查母体25~OH) D水平与16岁后代骨折风险之间的关联.
- 为了确定之前观察到的性二态效应是否持续到青春期.
主要方法:
- 在VIP队列中 (在澳大利亚东南部招募的) 475对母婴对的母体血清25...OH) D水平的分析.
- 确定从出生到2019年7月的后代的放射学证实事件骨折.
- 使用考克斯的比例危险模型,对母体年龄,后代性别,出生体重,妊娠时间和抽血季节等共变量进行调整.
主要成果:
- 在孕期早期,较高的母体25~OH) D与男孩的骨折风险降低有关 (HR 0.87),但在女孩的风险增加 (HR 1.10).
- 在妊娠晚期,更高的母体25~OH) D与女孩的骨折风险增加有关 (HR 1.14).
- 这些在早期儿童时期观察到的性别特异性模式持续到青春期.
结论:
- 这项研究证实,在儿童时期观察到的母体维生素D状况与后代骨折风险之间的性别特异关联在青春期继续存在.
- 这些发现凸显了母亲维生素D在后代骨发育和骨折易受性方面的复杂性和性别相关作用.
更多相关视频
03:19Author Spotlight: Studying the Impact of Maternal Dietary Deficiencies on Long-Term Offspring Health Outcomes
Published on: June 28, 2024
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
相关概念视频
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...
Role of Skin in Vitamin D Synthesis
The solar UV B rays (290-315 nm) are absorbed by the skin, and 7-dehydrocholesterol (provitamin D3) photolyzes it to previtamin D3, which undergoes a rapid transformation to vitamin...
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...
Connective Tissue Cell Types
Fat cells (adipocytes), smooth muscle cells (myoblasts), and bone cells (osteoblasts) are some connective tissue cell types. Some immune system cells...
Fractures: Bone Repair
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the...
