The importance of the thyroid hormone axis in the regulation of skeletal growth and maintenance has been well established from clinical studies involving patients with mutations in proteins that regulate synthesis and...The importance of the thyroid hormone axis in the regulation of skeletal growth and maintenance has been well established from clinical studies involving patients with mutations in proteins that regulate synthesis and/or actions of thyroid hormone. Data from genetic mouse models involving disruption and overexpression of components of the thyroid hormone axis also provide direct support for a key role for thyroid hormone in the regulation of bone metabolism. Thyroid hormone regulates proliferation and/or differentiated actions of multiple cell types in bone including chondrocytes, osteoblasts and osteoclasts. Thyroid hormone effects on the target cells are mediated via ligand-inducible nuclear receptors/transcription factors, thyroid hormone receptor （TR） a and ~, of which TRa seems to be critically important in regulating bone cell functions. In terms of mechanisms for thyroid hormone action, studies suggest that thyroid hormone regulates a number of key growth factor signaling pathways including insulin-like growth factor-I, parathyroid hormone related protein, fibroblast growth factor, Indian hedgehog and Wnt to influence skeletal growth. In this review we describe findings from various genetic mouse models and clinical mutations of thyroid hormone signaling related mutations in humans that pertain to the role and mechanism of action of thyroid hormone in the regulation of skeletal growth and maintenance.展开更多
目的本文拟分析和研究骨细胞受机械应力刺激相关方面被引率最高的50篇文献的基本特征,为临床相关研究提供一定的参考。方法计算机检索"Pubmed","Web of Science"等英文数据库,以"Compressive stress,Tensile s...目的本文拟分析和研究骨细胞受机械应力刺激相关方面被引率最高的50篇文献的基本特征,为临床相关研究提供一定的参考。方法计算机检索"Pubmed","Web of Science"等英文数据库,以"Compressive stress,Tensile stress,Fluid shear stress,stretch stress,centrifugal force,Micropipette stimulation,Electromagnetic force mode,Mechanical stress,mechanotransduction"和"osteocyte,osteoblast"为关键词进行检索,筛选出被引频次最高的50篇文献,排除与该研究不相关的其他文献,对文献的标题、第一作者、发表年份、期刊来源、地区分布、作者单位、被引频次等重要信息进行统计分析。结果被引最高的50篇文献的频次从239次到20次,发表于1999年至2015年,其中以2009年最多为9篇,文献刊登于27本期刊,其中以《Journal of Bone and Mineral Research》发表最多(11篇),其次是《Journal of Biological Chemistry》(6篇)、《Bone》(5篇);来源于12个国家,其中美国最多(21篇),发表2篇及2篇以上文献的大学或医院有7家,排名前两名的为印第安纳大学(4篇)、上海交通大学(3篇),共两位作者发表2篇以上文献,研究最多的信号通路依次为MAPK-ERK signaling pathway(11)篇、Wnt/beta-catenin signaling(9篇)、PI3K/AKT signaling pathway(4篇)、BMP signaling pathway(2篇)。结论被引最高文献的分析不仅有助于了解骨细胞机械应力刺激相关研究的发展状况,指导未来研究方向,还可以为广大研究者阅读文献提供参考。展开更多
基金Financial support was received from funding agencies in the United States (NIH grant AR048139 and VA merit review grant)
文摘The importance of the thyroid hormone axis in the regulation of skeletal growth and maintenance has been well established from clinical studies involving patients with mutations in proteins that regulate synthesis and/or actions of thyroid hormone. Data from genetic mouse models involving disruption and overexpression of components of the thyroid hormone axis also provide direct support for a key role for thyroid hormone in the regulation of bone metabolism. Thyroid hormone regulates proliferation and/or differentiated actions of multiple cell types in bone including chondrocytes, osteoblasts and osteoclasts. Thyroid hormone effects on the target cells are mediated via ligand-inducible nuclear receptors/transcription factors, thyroid hormone receptor （TR） a and ~, of which TRa seems to be critically important in regulating bone cell functions. In terms of mechanisms for thyroid hormone action, studies suggest that thyroid hormone regulates a number of key growth factor signaling pathways including insulin-like growth factor-I, parathyroid hormone related protein, fibroblast growth factor, Indian hedgehog and Wnt to influence skeletal growth. In this review we describe findings from various genetic mouse models and clinical mutations of thyroid hormone signaling related mutations in humans that pertain to the role and mechanism of action of thyroid hormone in the regulation of skeletal growth and maintenance.
文摘目的本文拟分析和研究骨细胞受机械应力刺激相关方面被引率最高的50篇文献的基本特征,为临床相关研究提供一定的参考。方法计算机检索"Pubmed","Web of Science"等英文数据库,以"Compressive stress,Tensile stress,Fluid shear stress,stretch stress,centrifugal force,Micropipette stimulation,Electromagnetic force mode,Mechanical stress,mechanotransduction"和"osteocyte,osteoblast"为关键词进行检索,筛选出被引频次最高的50篇文献,排除与该研究不相关的其他文献,对文献的标题、第一作者、发表年份、期刊来源、地区分布、作者单位、被引频次等重要信息进行统计分析。结果被引最高的50篇文献的频次从239次到20次,发表于1999年至2015年,其中以2009年最多为9篇,文献刊登于27本期刊,其中以《Journal of Bone and Mineral Research》发表最多(11篇),其次是《Journal of Biological Chemistry》(6篇)、《Bone》(5篇);来源于12个国家,其中美国最多(21篇),发表2篇及2篇以上文献的大学或医院有7家,排名前两名的为印第安纳大学(4篇)、上海交通大学(3篇),共两位作者发表2篇以上文献,研究最多的信号通路依次为MAPK-ERK signaling pathway(11)篇、Wnt/beta-catenin signaling(9篇)、PI3K/AKT signaling pathway(4篇)、BMP signaling pathway(2篇)。结论被引最高文献的分析不仅有助于了解骨细胞机械应力刺激相关研究的发展状况,指导未来研究方向,还可以为广大研究者阅读文献提供参考。
