Hypothalamic regulation of cortical bone mass: Opposing activity of Y2 receptor and leptin pathways

被引:86
作者
Baldock, Paul A.
Allison, Susan
McDonald, Michelle M.
Sainsbury, Amanda
Enriquez, Ronaldo F.
Little, David G.
Eisman, John A.
Gardiner, Edith M.
Herzog, Herbert
机构
[1] St Vincents Hosp, Garvan Inst Med Res, Bone & Mineral Program, Sydney, NSW 2010, Australia
[2] Childrens Hosp Westmead, Dept Orthopaed Res & Biotechnol, Sydney, NSW, Australia
[3] St Vincents Hosp, Garvan Inst Med Res, Neurobiol Program, Sydney, NSW 2010, Australia
关键词
hypothalamus; cortical bone; Y2; receptor; leptin; bone formation;
D O I
10.1359/JBMR.060705
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
NeuropeptideY-, Y2 receptor (Y2)-, and leptin-deficient mice show similar anabolic action in cancellous bone but have not been assessed in cortical bone. Cortical bone mass is elevated in Y2(-/-) mice through greater osteoblast activity. In contrast, leptin deficiency results in reduced bone mass. We show opposing central regulation of cortical bone.
引用
收藏
页码:1600 / 1607
页数:8
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