Suppr超能文献

神经骨骼生物学新领域。

The new field of neuroskeletal biology.

作者信息

Patel M S, Elefteriou F

机构信息

Department of Medical Genetics, University of British Columbia, C234, 4500 Oak Street, Vancouver, BC, V6H 3N1, Canada.

出版信息

Calcif Tissue Int. 2007 May;80(5):337-47. doi: 10.1007/s00223-007-9015-3. Epub 2007 Apr 18.

Abstract

The fields of neuroscience and bone biology have recently converged following the discovery that bone remodeling is directly regulated by the brain. This work has defined bone remodeling as one of the cardinal physiological functions of the body, subject to homeostatic regulation and integrated with the other major physiological functions by the hypothalamus. Central to this discovery was the definition of the adipocyte-derived hormone leptin as a regulator of both arms of bone remodeling, formation and resorption, through its action on the ventromedial hypothalamus and subsequently via the sympathetic nervous system to osteoblasts. The characterization of the sympathetic nervous system as a regulator of bone remodeling has led to several large clinical studies demonstrating a substantial protective effect of beta-blockers, particularly beta1-blockers, on fracture risk. Studies in model organisms have reinforced the role of the central nervous system in the regulation of bone remodeling in vivo by the identification of several additional genes, namely cocaine and amphetamine regulated transcript (Cart), melanocortin 4 receptor (Mc4R), neuropeptide Y (NPY), Y2 receptor, cannabinoid receptor CB1 (Cnbr1), and the genes of the circadian clock. These genes have several common features, including high levels of expression in the hypothalamus and the ability to regulate other major physiological functions in addition to bone remodeling including energy homeostasis, body weight, and reproduction. We review the major pathways that define the new field of neuroskeletal biology and identify further avenues of inquiry.

摘要

随着骨重塑受大脑直接调控这一发现,神经科学和骨生物学领域最近开始相互融合。这项研究将骨重塑定义为身体的主要生理功能之一,受稳态调节,并由下丘脑与其他主要生理功能整合。这一发现的核心是将脂肪细胞衍生的激素瘦素定义为骨重塑两个环节(形成和吸收)的调节因子,它通过作用于腹内侧下丘脑,随后经交感神经系统作用于成骨细胞来实现。将交感神经系统表征为骨重塑的调节因子,已促使多项大型临床研究表明,β受体阻滞剂,尤其是β1受体阻滞剂,对骨折风险具有显著的保护作用。对模式生物的研究通过鉴定其他几个基因,即可卡因和苯丙胺调节转录物(Cart)、黑皮质素4受体(Mc4R)、神经肽Y(NPY)、Y2受体、大麻素受体CB1(Cnbr1)以及生物钟基因,进一步强化了中枢神经系统在体内调节骨重塑中的作用。这些基因具有几个共同特征,包括在下丘脑中高表达,以及除了调节骨重塑外,还能调节其他主要生理功能,包括能量稳态、体重和生殖。我们综述了定义神经骨骼生物学新领域的主要途径,并确定了进一步的研究方向。

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验