scholarly journals Correlation between metacarpal cortical bone mineral density measured by dual x-ray densitometry and radiogrammetry on early arthritis patients.

IBJ Plus ◽  
2018 ◽  
Author(s):  
◽  
◽  
◽  
I. Llorente ◽  
A. M. Ortíz ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Cortical Bone ◽  
Bone Mineral ◽  
Early Arthritis ◽  
Mineral Density ◽  
X Ray ◽  
Cortical Bone Mineral Density

scholarly journals Femoral Cortical Bone Mineral Density and Biomechanical Properties in Sheep Consuming an Acidifying Diet

2008 ◽  
Vol 2 ◽  
pp. NMI.S2083
Author(s):  
Eileen S. Hackett ◽  
Jennifer M. MacLeay ◽  
Mike Green ◽  
R. Mark Enns ◽  
Carola L. Pechey ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Cortical Bone ◽  
Bone Mineral ◽  
Material Properties ◽  
Biomechanical Properties ◽  
Normal Diet ◽  
Ovine Model ◽  
Mineral Density ◽  
X Ray ◽  
Cortical Bone Mineral Density

Dietary acidity is a likely contributor to the development of osteoporosis. Dietary acidosis in an ovine model has effects on trabecular bone that have been previously shown to mimic human osteoporosis. Effects on cortical bone using this model have not been investigated. The objective of this study was to examine the effects of dietary acidosis on cortical bone mineral density and material properties. Skeletally mature ovariectomized (OVX) sheep consumed either a normal diet (ND) or a metabolic acidosis diet (MA) for 6 or 12 months. Whole femoral and cortical bone beam BMD was determined using dual energy x-ray absorptiometry (DEXA). Beams were then subjected to three point flexure monotonically to failure to determine strength and modulus and then ashed to determine percent mineralization. Femoral BMD in adult OVX ND 6 mo sheep was significantly greater than those in the non-OVX ND group. The BMD in the MA groups was lower than the control non-OVX ND group. Cortical beams had significantly decreased modulus in all MA and OVX groups when compared with the non-OVX ND group and a tendency towards decreased strength in all groups with significance only in the OVX ND 6 mo sheep. Percent mineralization increased in MA and OVX groups when compared to the non-OVX ND group and was significantly increased in the OVX ND 6 mo and OVX MA 12 mo groups. A significant correlation was seen between BMD of the beam and breaking strength and modulus. Dietary acidity impacts cortical bone and results in reduced material properties that may contribute to failure.

scholarly journals A Metabolic Screen in Adolescents Reveals an Association Between Circulating Citrate and Cortical Bone Mineral Density

2019 ◽  
Vol 34 (7) ◽  
pp. 1306-1313 ◽  
Author(s):  
John P Kemp ◽  
Adrian Sayers ◽  
William D Fraser ◽  
George Davey Smith ◽  
Mika Ala‐Korpela ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Cortical Bone ◽  
Bone Mineral ◽  
Mineral Density ◽  
Cortical Bone Mineral Density

scholarly journals Fat Mass Exerts a Greater Effect on Cortical Bone Mass in Girls than Boys

2010 ◽  
Vol 95 (2) ◽  
pp. 699-706 ◽  
Author(s):  
Adrian Sayers ◽  
Jonathan H. Tobias
Keyword(s):  
Bone Mineral Density ◽  
Bone Mass ◽  
Cortical Bone ◽  
Bone Mineral ◽  
Fat Mass ◽  
Quantitative Computed Tomography ◽  
Positive Association ◽  
Mineral Density ◽  
Cortical Bone Mineral Density ◽  
Cortical Bone Mass

Abstract Context: It is unclear whether fat mass (FM) and lean mass (LM) differ in the way they influence cortical bone development in boys and girls. Objective: The aim of the study was to investigate the contributions of total body FM and LM to parameters related to cortical bone mass and geometry. Design/Setting: We conducted a longitudinal birth cohort study, the Avon Longitudinal Study of Parents and Children. Participants: A total of 4005 boys and girls (mean age, 15.5 yr) participated in the study. Outcome Measures: We measured cortical bone mass, cortical bone mineral content (BMCC), cortical bone mineral density, periosteal circumference (PC), and endosteal circumference by tibial peripheral quantitative computed tomography. Results: LM had a similar positive association with BMCC in boys and girls [regression coefficients with 95% confidence interval (CI); P for gender interactions: boys/girls, 0.952 (0.908, 0.997); P = 0.85]. However, the mechanisms by which LM influenced bone mass differed according to gender because LM was positively associated with PC more strongly in girls [boys, 0.579 (0.522, 0.635); girls, 0.799 (0.722, 0.875); P < 0.0001], but was only associated with cortical bone mineral density in boys [boys, 0.443 (0.382, 0.505); girls, 0.014 (−0.070, 0.097); P < 0.0001]. There was a stronger positive association between FM and BMCC in girls [boys, 0.227 (0.185, 0.269); girls, 0.355 (0.319, 0.392); P < 0.0001]. This reflected both a greater positive association of FM with PC in girls [boys, 0.213 (0.174, 0.253); girls, 0.312 (0.278, 0.347); P = 0.0002], and a stronger negative association with endosteal circumferencePC [boys, −0.059 (−0.096, 0.021); girls, −0.181 (−0.215, −0.146); P < 0.0001]. Conclusions: Whereas LM stimulates the accrual of cortical bone mass to a similar extent in boys and girls, FM is a stronger stimulus for accrual of cortical bone mass in girls, reflecting a greater tendency in females for FM to stimulate periosteal growth and suppress endosteal expansion.

scholarly journals Fam3c modulates osteogenic cell differentiation and affects bone volume and cortical bone mineral density

2016 ◽  
Vol 5 ◽  
Author(s):  
Jorma A Määttä ◽  
Ameya Bendre ◽  
Mervi Laanti ◽  
Kalman G Büki ◽  
Pia Rantakari ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Cell Differentiation ◽  
Cortical Bone ◽  
Bone Mineral ◽  
Bone Volume ◽  
Osteogenic Cell ◽  
Mineral Density ◽  
Cortical Bone Mineral Density
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