Autosome-wide linkage analysis of hip structural phenotypes in the Old Order Amish

E. A. Streeten, T. J. Beck, J. R. O'Connell, Evadnie Rampersand, D. J. McBride, S. L. Takala, T. I. Pollin, K. Uusi-Rasi, B. D. Mitchell, A. R. Shuldiner

Research output: Contribution to journalArticle

Abstract

Introduction: Fracture risk is associated with bone mineral density (BMD) and with other indices of bone strength, including hip geometry. While the heritability and associated fracture risk of BMD are well described, less is known about genetic influences of bone geometry. We derived hip structural phenotypes using the Hip Structural Analysis program (HSA) and performed autosome-wide linkage analysis of hip geometric structural phenotypes. Materials and methods: The Amish Family Osteoporosis Study was designed to identify genes affecting bone health. BMD was measured at the hip using dual X-ray absorptiometry (DXA) in 879 participants (mean age ± SD = 49.8 ± 16.1 years, range 18-91 years) from large multigenerational families. From DXA scans, we computed structural measures of hip geometry at the femoral neck (NN) and shaft (S) by HSA, including cross-sectional area (CSA), endocortical or inner diameter (ID), outer diameter (OD) buckling ratio (BR) and section modulus (Z). Genotyping of 731 highly polymorphic microsatellite markers (average spacing of 5.4 cM) and autosome-wide multipoint linkage analysis was performed. Results: The heritability of HSA-derived hip phenotypes ranged from 40 to 84%. In the group as a whole, autosome-wide linkage analysis suggested evidence of linkage for QTLs related to NN_Z on chromosome 1p36 (LOD = 2.36). In subgroup analysis, ten additional suggestive regions of linkage were found on chromosomes 1, 2, 5, 6, 11, 12, 14, 15 and 17, all with LOD > 2.3 except for our linkage at 17q11.2-13 for men and women age 50 and under for NN_CSA, which had a lower LOD of 2.16, but confirmed a previous linkage report. Conclusions: We found HSA-derived measures of hip structure to be highly heritable independent of BMD. No strong evidence of linkage was found for any phenotype. Confirmatory evidence of linkage was found on chromosome 17q11.2-12 for NN_CSA. Modest evidence was found for genes affecting hip structural phenotypes at ten other chromosomal locations.

Original languageEnglish (US)
Pages (from-to)607-612
Number of pages6
JournalBone
Volume43
Issue number3
DOIs
StatePublished - Sep 2008

Fingerprint

Amish
Hip
Phenotype
Bone Density
Photon Absorptiometry
Bone and Bones
Chromosomes, Human, Pair 12
Chromosomes, Human, Pair 2
Chromosomes, Human, Pair 1
Femur Neck
Microsatellite Repeats

Keywords

  • Autosome-wide scan
  • Bone geometry
  • Genetics
  • Heritability
  • Hip structural phenotype

ASJC Scopus subject areas

  • Physiology
  • Hematology

Cite this

Streeten, E. A., Beck, T. J., O'Connell, J. R., Rampersand, E., McBride, D. J., Takala, S. L., ... Shuldiner, A. R. (2008). Autosome-wide linkage analysis of hip structural phenotypes in the Old Order Amish. Bone, 43(3), 607-612. https://doi.org/10.1016/j.bone.2008.04.005

Autosome-wide linkage analysis of hip structural phenotypes in the Old Order Amish. / Streeten, E. A.; Beck, T. J.; O'Connell, J. R.; Rampersand, Evadnie; McBride, D. J.; Takala, S. L.; Pollin, T. I.; Uusi-Rasi, K.; Mitchell, B. D.; Shuldiner, A. R.

In: Bone, Vol. 43, No. 3, 09.2008, p. 607-612.

Research output: Contribution to journalArticle

Streeten, EA, Beck, TJ, O'Connell, JR, Rampersand, E, McBride, DJ, Takala, SL, Pollin, TI, Uusi-Rasi, K, Mitchell, BD & Shuldiner, AR 2008, 'Autosome-wide linkage analysis of hip structural phenotypes in the Old Order Amish', Bone, vol. 43, no. 3, pp. 607-612. https://doi.org/10.1016/j.bone.2008.04.005
Streeten EA, Beck TJ, O'Connell JR, Rampersand E, McBride DJ, Takala SL et al. Autosome-wide linkage analysis of hip structural phenotypes in the Old Order Amish. Bone. 2008 Sep;43(3):607-612. https://doi.org/10.1016/j.bone.2008.04.005
Streeten, E. A. ; Beck, T. J. ; O'Connell, J. R. ; Rampersand, Evadnie ; McBride, D. J. ; Takala, S. L. ; Pollin, T. I. ; Uusi-Rasi, K. ; Mitchell, B. D. ; Shuldiner, A. R. / Autosome-wide linkage analysis of hip structural phenotypes in the Old Order Amish. In: Bone. 2008 ; Vol. 43, No. 3. pp. 607-612.
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abstract = "Introduction: Fracture risk is associated with bone mineral density (BMD) and with other indices of bone strength, including hip geometry. While the heritability and associated fracture risk of BMD are well described, less is known about genetic influences of bone geometry. We derived hip structural phenotypes using the Hip Structural Analysis program (HSA) and performed autosome-wide linkage analysis of hip geometric structural phenotypes. Materials and methods: The Amish Family Osteoporosis Study was designed to identify genes affecting bone health. BMD was measured at the hip using dual X-ray absorptiometry (DXA) in 879 participants (mean age ± SD = 49.8 ± 16.1 years, range 18-91 years) from large multigenerational families. From DXA scans, we computed structural measures of hip geometry at the femoral neck (NN) and shaft (S) by HSA, including cross-sectional area (CSA), endocortical or inner diameter (ID), outer diameter (OD) buckling ratio (BR) and section modulus (Z). Genotyping of 731 highly polymorphic microsatellite markers (average spacing of 5.4 cM) and autosome-wide multipoint linkage analysis was performed. Results: The heritability of HSA-derived hip phenotypes ranged from 40 to 84{\%}. In the group as a whole, autosome-wide linkage analysis suggested evidence of linkage for QTLs related to NN_Z on chromosome 1p36 (LOD = 2.36). In subgroup analysis, ten additional suggestive regions of linkage were found on chromosomes 1, 2, 5, 6, 11, 12, 14, 15 and 17, all with LOD > 2.3 except for our linkage at 17q11.2-13 for men and women age 50 and under for NN_CSA, which had a lower LOD of 2.16, but confirmed a previous linkage report. Conclusions: We found HSA-derived measures of hip structure to be highly heritable independent of BMD. No strong evidence of linkage was found for any phenotype. Confirmatory evidence of linkage was found on chromosome 17q11.2-12 for NN_CSA. Modest evidence was found for genes affecting hip structural phenotypes at ten other chromosomal locations.",
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AU - Streeten, E. A.

AU - Beck, T. J.

AU - O'Connell, J. R.

AU - Rampersand, Evadnie

AU - McBride, D. J.

AU - Takala, S. L.

AU - Pollin, T. I.

AU - Uusi-Rasi, K.

AU - Mitchell, B. D.

AU - Shuldiner, A. R.

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N2 - Introduction: Fracture risk is associated with bone mineral density (BMD) and with other indices of bone strength, including hip geometry. While the heritability and associated fracture risk of BMD are well described, less is known about genetic influences of bone geometry. We derived hip structural phenotypes using the Hip Structural Analysis program (HSA) and performed autosome-wide linkage analysis of hip geometric structural phenotypes. Materials and methods: The Amish Family Osteoporosis Study was designed to identify genes affecting bone health. BMD was measured at the hip using dual X-ray absorptiometry (DXA) in 879 participants (mean age ± SD = 49.8 ± 16.1 years, range 18-91 years) from large multigenerational families. From DXA scans, we computed structural measures of hip geometry at the femoral neck (NN) and shaft (S) by HSA, including cross-sectional area (CSA), endocortical or inner diameter (ID), outer diameter (OD) buckling ratio (BR) and section modulus (Z). Genotyping of 731 highly polymorphic microsatellite markers (average spacing of 5.4 cM) and autosome-wide multipoint linkage analysis was performed. Results: The heritability of HSA-derived hip phenotypes ranged from 40 to 84%. In the group as a whole, autosome-wide linkage analysis suggested evidence of linkage for QTLs related to NN_Z on chromosome 1p36 (LOD = 2.36). In subgroup analysis, ten additional suggestive regions of linkage were found on chromosomes 1, 2, 5, 6, 11, 12, 14, 15 and 17, all with LOD > 2.3 except for our linkage at 17q11.2-13 for men and women age 50 and under for NN_CSA, which had a lower LOD of 2.16, but confirmed a previous linkage report. Conclusions: We found HSA-derived measures of hip structure to be highly heritable independent of BMD. No strong evidence of linkage was found for any phenotype. Confirmatory evidence of linkage was found on chromosome 17q11.2-12 for NN_CSA. Modest evidence was found for genes affecting hip structural phenotypes at ten other chromosomal locations.

AB - Introduction: Fracture risk is associated with bone mineral density (BMD) and with other indices of bone strength, including hip geometry. While the heritability and associated fracture risk of BMD are well described, less is known about genetic influences of bone geometry. We derived hip structural phenotypes using the Hip Structural Analysis program (HSA) and performed autosome-wide linkage analysis of hip geometric structural phenotypes. Materials and methods: The Amish Family Osteoporosis Study was designed to identify genes affecting bone health. BMD was measured at the hip using dual X-ray absorptiometry (DXA) in 879 participants (mean age ± SD = 49.8 ± 16.1 years, range 18-91 years) from large multigenerational families. From DXA scans, we computed structural measures of hip geometry at the femoral neck (NN) and shaft (S) by HSA, including cross-sectional area (CSA), endocortical or inner diameter (ID), outer diameter (OD) buckling ratio (BR) and section modulus (Z). Genotyping of 731 highly polymorphic microsatellite markers (average spacing of 5.4 cM) and autosome-wide multipoint linkage analysis was performed. Results: The heritability of HSA-derived hip phenotypes ranged from 40 to 84%. In the group as a whole, autosome-wide linkage analysis suggested evidence of linkage for QTLs related to NN_Z on chromosome 1p36 (LOD = 2.36). In subgroup analysis, ten additional suggestive regions of linkage were found on chromosomes 1, 2, 5, 6, 11, 12, 14, 15 and 17, all with LOD > 2.3 except for our linkage at 17q11.2-13 for men and women age 50 and under for NN_CSA, which had a lower LOD of 2.16, but confirmed a previous linkage report. Conclusions: We found HSA-derived measures of hip structure to be highly heritable independent of BMD. No strong evidence of linkage was found for any phenotype. Confirmatory evidence of linkage was found on chromosome 17q11.2-12 for NN_CSA. Modest evidence was found for genes affecting hip structural phenotypes at ten other chromosomal locations.

KW - Autosome-wide scan

KW - Bone geometry

KW - Genetics

KW - Heritability

KW - Hip structural phenotype

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