scholarly journals The role of cortical bone and its microstructure in bone strength

2006 ◽  
Vol 35 (suppl_2) ◽  
pp. ii27-ii31 ◽  
Author(s):  
Peter Augat ◽  
Sandra Schorlemmer
Keyword(s):  
2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Basel M. Al-Barghouthi ◽  
Larry D. Mesner ◽  
Gina M. Calabrese ◽  
Daniel Brooks ◽  
Steven M. Tommasini ◽  
...  

AbstractGenome-wide association studies (GWASs) for osteoporotic traits have identified over 1000 associations; however, their impact has been limited by the difficulties of causal gene identification and a strict focus on bone mineral density (BMD). Here, we use Diversity Outbred (DO) mice to directly address these limitations by performing a systems genetics analysis of 55 complex skeletal phenotypes. We apply a network approach to cortical bone RNA-seq data to discover 66 genes likely to be causal for human BMD GWAS associations, including the genes SERTAD4 and GLT8D2. We also perform GWAS in the DO for a wide-range of bone traits and identify Qsox1 as a gene influencing cortical bone accrual and bone strength. In this work, we advance our understanding of the genetics of osteoporosis and highlight the ability of the mouse to inform human genetics.


2018 ◽  
Vol 11 (4) ◽  
pp. 1145-1154 ◽  
Author(s):  
Nima Montazeri-Najafabady ◽  
Younes Ghasemi ◽  
Mohammad Hossein Dabbaghmanesh ◽  
Pedram Talezadeh ◽  
Farhad Koohpeyma ◽  
...  

2009 ◽  
Vol 160 (5) ◽  
pp. 1110-1112 ◽  
Author(s):  
R.B.M. Barry ◽  
J.A.A. Langtry ◽  
C.M. Lawrence
Keyword(s):  

1997 ◽  
Vol 61 (6) ◽  
pp. 474-479 ◽  
Author(s):  
J. F. Veenland ◽  
T. M. Link ◽  
W. Konermann ◽  
N. Meier ◽  
J. L. Grashuis ◽  
...  
Keyword(s):  

2019 ◽  
Vol 30 (S19) ◽  
pp. 157-158
Author(s):  
Igor Linetskiy ◽  
Vladislav Demenko ◽  
Vitalij Nesvit ◽  
Larysa Linetska ◽  
Oleg Yefremov

1995 ◽  
Vol 10 (3) ◽  
pp. 181-188 ◽  
Author(s):  
Brian Jet -Fei Wong ◽  
Vivian Sung ◽  
Michael W. Berns ◽  
Lars O. Svaasand ◽  
Joseph Neev

1982 ◽  
Vol 11 (2) ◽  
pp. 52-59 ◽  
Author(s):  
BAYO J. ADEYANJU ◽  
HUGH C. BUTLER ◽  
HORST W. LEIPOLD
Keyword(s):  

2018 ◽  
Vol 238 (1) ◽  
pp. 13-23 ◽  
Author(s):  
Thomas Funck-Brentano ◽  
Karin H Nilsson ◽  
Robert Brommage ◽  
Petra Henning ◽  
Ulf H Lerner ◽  
...  

WNT signaling is involved in the tumorigenesis of various cancers and regulates bone homeostasis. Palmitoleoylation of WNTs by Porcupine is required for WNT activity. Porcupine inhibitors are under development for cancer therapy. As the possible side effects of Porcupine inhibitors on bone health are unknown, we determined their effects on bone mass and strength. Twelve-week-old C57BL/6N female mice were treated by the Porcupine inhibitors LGK974 (low dose = 3 mg/kg/day; high dose = 6 mg/kg/day) or Wnt-C59 (10 mg/kg/day) or vehicle for 3 weeks. Bone parameters were assessed by serum biomarkers, dual-energy X-ray absorptiometry, µCT and histomorphometry. Bone strength was measured by the 3-point bending test. The Porcupine inhibitors were well tolerated demonstrated by normal body weight. Both doses of LGK974 and Wnt-C59 reduced total body bone mineral density compared with vehicle treatment (P < 0.001). Cortical thickness of the femur shaft (P < 0.001) and trabecular bone volume fraction in the vertebral body (P < 0.001) were reduced by treatment with LGK974 or Wnt-C59. Porcupine inhibition reduced bone strength in the tibia (P < 0.05). The cortical bone loss was the result of impaired periosteal bone formation and increased endocortical bone resorption and the trabecular bone loss was caused by reduced trabecular bone formation and increased bone resorption. Porcupine inhibitors exert deleterious effects on bone mass and strength caused by a combination of reduced bone formation and increased bone resorption. We suggest that cancer targeted therapies using Porcupine inhibitors may increase the risk of fractures.


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