Searchable abstracts of presentations at key conferences on calcified tissues

ba0001pp307 | Muscle, physical activity and bone | ECTS2013

Muscle power and force may influence cortical bone strength via distinct mechanisms: findings from a cross sectional study of high bone mass cases and controls

Hardcastle Sarah A , Gregson Celia L , Rittweger Jorn , Ward Kate A , Tobias Jon H

Background: Relationships between muscle function and bone have been examined using a range of techniques, with conflicting results. We aimed to determine these associations within an adult population comprising individuals with high bone mass and family controls.Methods: Recruitment was from four UK sites within the high bone mass (HBM) study; cases and unaffected family controls were pooled. Peak ground reaction force and peak power, during a multiple ...

ba0007oc1 | (1) | ICCBH2019

Association between age at puberty and bone accrual up to 25 years-old

Elhakeem Ahmed , Frysz Monika , Tilling Kate , Tobias Jon H , Lawlor Debbie A

Objectives: Studies indicate that later puberty is associated with lower bone mineral density (BMD) in childhood. Less is known about effects of puberty timing on long-term bone accrual. We examined association between age at puberty and BMD accrual rate from 10 to 25 years.Methods: This was a prospective birth cohort of healthy largely European people born in southwest England in 1991–1992 and regularly follow-up from birth to mean age 25 years. Ag...

ba0001pp31 | Bone biomechanics and quality | ECTS2013

A GWAS in an extreme high bone mass population shows excess signal from genes associated with BMD in the normal population

Gregson Celia L , Leo Leo Paul J , Clark Graeme R , Smith George Davey , Brown Matthew A , Tobias Jon H , Duncan Duncan Emma L

Extreme high bone mass (HBM) may be monogenic (e.g. due to mutations in SOST or LRP5) or polygenic, due to variants in the same genes determining bone mineral density (BMD) as found in the general population. We aimed to determine the genetic cause underlying HBM in an extreme HBM population.258 unexplained HBM cases (defined as L1 Z-score ≥+3.2 plus total hip Z-score ≥+1.2, or total hip Z-score ≥+3.2 and L1 <...

ba0004oc5 | (1) | ICCBH2015

Bivariate analyses of BMD and lean mass in children identifies variants with novel pleiotropic effects across six BMD loci and in the TOM1L2 locus

Medina-Gomez Carolina , Kemp John P , Heppe Denise H M , Tobias Jon H , Hofman Albert , Carola Zillikens M , Uitterlinden Andre G , Jaddoe Vincent W V , Evans David M , Rivadeneira Fernando

Background: Lean and bone mass are heritable traits with high phenotypic correlation (rho=0.44), likely reflecting the underlying mechanical and biochemical interactions between tissues.Aim: Estimate the shared heritability (genetic correlation) of both traits in children and identify genetic determinants displaying pleiotropic effects on lean mass and bone mass accrual.Methods: Participants make part of two prospective po...