Skip to main content
Top
Published in: Osteoporosis International 5/2016

01-05-2016 | Original Article

Are bone turnover markers associated with volumetric bone density, size, and strength in older men and women? The AGES–Reykjavik study

Authors: E. A. Marques, V. Gudnason, G. Sigurdsson, T. Lang, F. Johannesdottir, K. Siggeirsdottir, L. Launer, G. Eiriksdottir, T. B. Harris

Published in: Osteoporosis International | Issue 5/2016

Login to get access

Abstract

Summary

Association between serum bone formation and resorption markers and bone mineral, structural, and strength variables derived from quantitative computed tomography (QCT) in a population-based cohort of 1745 older adults was assessed. The association was weak for lumbar spine and femoral neck areal and volumetric bone mineral density.

Introduction

The aim of this study was to examine the relationship between levels of bone turnover markers (BTMs; osteocalcin (OC), C-terminal cross-linking telopeptide of type I collagen (CTX), and procollagen type 1N propeptide (P1NP)) and quantitative computed tomography (QCT)-derived bone density, geometry, and strength indices in the lumbar spine and femoral neck (FN).

Methods

A total of 1745 older individuals (773 men and 972 women, aged 66–92 years) from the Age, Gene/Environment Susceptibility (AGES)–Reykjavik cohort were studied. QCT was performed in the lumbar spine and hip to estimate volumetric trabecular, cortical, and integral bone mineral density (BMD), areal BMD, bone geometry, and bone strength indices. Association between BTMs and QCT variables were explored using multivariable linear regression.

Results

Major findings showed that all BMD measures, FN cortical index, and compressive strength had a low negative correlation with the BTM levels in both men and women. Correlations between BTMs and bone size parameters were minimal or not significant. No associations were found between BTMs and vertebral cross-sectional area in women. BTMs alone accounted for only a relatively small percentage of the bone parameter variance (1–10 %).

Conclusion

Serum CTX, OC, and P1NP were weakly correlated with lumbar spine and FN areal and volumetric BMD and strength measures. Most of the bone size indices were not associated with BTMs; thus, the selected bone remodeling markers do not reflect periosteal bone formation. These results confirmed the limited ability of the most sensitive established BTMs to predict bone structural integrity in older adults.
Literature
2.
go back to reference Bauer NB, Khassawna TE, Goldmann F, Stirn M, Ledieu D, Schlewitz G, Govindarajan P, Zahner D, Weisweiler D, Schliefke N, Bocker W, Schnettler R, Heiss C, Moritz A (2015) Characterization of bone turnover and energy metabolism in a rat model of primary and secondary osteoporosis. Exp Toxicol Pathol Off J Ges Toxikologische Pathol 67(4):287–296. doi:10.1016/j.etp.2015.01.004 CrossRef Bauer NB, Khassawna TE, Goldmann F, Stirn M, Ledieu D, Schlewitz G, Govindarajan P, Zahner D, Weisweiler D, Schliefke N, Bocker W, Schnettler R, Heiss C, Moritz A (2015) Characterization of bone turnover and energy metabolism in a rat model of primary and secondary osteoporosis. Exp Toxicol Pathol Off J Ges Toxikologische Pathol 67(4):287–296. doi:10.​1016/​j.​etp.​2015.​01.​004 CrossRef
3.
go back to reference Garnero P, Sornay-Rendu E, Chapuy MC, Delmas PD (1996) Increased bone turnover in late postmenopausal women is a major determinant of osteoporosis. J Bone Miner Res Off J Am Soc Bone Miner Res 11(3):337–349. doi:10.1002/jbmr.5650110307 CrossRef Garnero P, Sornay-Rendu E, Chapuy MC, Delmas PD (1996) Increased bone turnover in late postmenopausal women is a major determinant of osteoporosis. J Bone Miner Res Off J Am Soc Bone Miner Res 11(3):337–349. doi:10.​1002/​jbmr.​5650110307 CrossRef
4.
go back to reference Khosla S, Melton LJ 3rd, Atkinson EJ, O’Fallon WM, Klee GG, Riggs BL (1998) Relationship of serum sex steroid levels and bone turnover markers with bone mineral density in men and women: a key role for bioavailable estrogen. J Clin Endocrinol Metab 83(7):2266–2274PubMed Khosla S, Melton LJ 3rd, Atkinson EJ, O’Fallon WM, Klee GG, Riggs BL (1998) Relationship of serum sex steroid levels and bone turnover markers with bone mineral density in men and women: a key role for bioavailable estrogen. J Clin Endocrinol Metab 83(7):2266–2274PubMed
5.
go back to reference Marcus R, Holloway L, Wells B, Greendale G, James MK, Wasilauskas C, Kelaghan J (1999) The relationship of biochemical markers of bone turnover to bone density changes in postmenopausal women: results from the Postmenopausal Estrogen/Progestin Interventions (PEPI) trial. J Bone Miner Res Off J Am Soc Bone Miner Res 14(9):1583–1595. doi:10.1359/jbmr.1999.14.9.1583 CrossRef Marcus R, Holloway L, Wells B, Greendale G, James MK, Wasilauskas C, Kelaghan J (1999) The relationship of biochemical markers of bone turnover to bone density changes in postmenopausal women: results from the Postmenopausal Estrogen/Progestin Interventions (PEPI) trial. J Bone Miner Res Off J Am Soc Bone Miner Res 14(9):1583–1595. doi:10.​1359/​jbmr.​1999.​14.​9.​1583 CrossRef
7.
go back to reference Gerdhem P, Ivaska KK, Alatalo SL, Halleen JM, Hellman J, Isaksson A, Pettersson K, Vaananen HK, Akesson K, Obrant KJ (2004) Biochemical markers of bone metabolism and prediction of fracture in elderly women. J Bone Miner Res Off J Am Soc Bone Miner Res 19(3):386–393. doi:10.1359/JBMR.0301244 CrossRef Gerdhem P, Ivaska KK, Alatalo SL, Halleen JM, Hellman J, Isaksson A, Pettersson K, Vaananen HK, Akesson K, Obrant KJ (2004) Biochemical markers of bone metabolism and prediction of fracture in elderly women. J Bone Miner Res Off J Am Soc Bone Miner Res 19(3):386–393. doi:10.​1359/​JBMR.​0301244 CrossRef
8.
go back to reference Ivaska KK, Gerdhem P, Vaananen HK, Akesson K, Obrant KJ (2010) Bone turnover markers and prediction of fracture: a prospective follow-up study of 1040 elderly women for a mean of 9 years. J Bone Miner Res Off J Am Soc Bone Miner Res 25(2):393–403. doi:10.1359/jbmr.091006 CrossRef Ivaska KK, Gerdhem P, Vaananen HK, Akesson K, Obrant KJ (2010) Bone turnover markers and prediction of fracture: a prospective follow-up study of 1040 elderly women for a mean of 9 years. J Bone Miner Res Off J Am Soc Bone Miner Res 25(2):393–403. doi:10.​1359/​jbmr.​091006 CrossRef
9.
go back to reference Khosla S, Melton LJ 3rd, Achenbach SJ, Oberg AL, Riggs BL (2006) Hormonal and biochemical determinants of trabecular microstructure at the ultradistal radius in women and men. J Clin Endocrinol Metab 91(3):885–891. doi:10.1210/jc.2005-2065 CrossRefPubMed Khosla S, Melton LJ 3rd, Achenbach SJ, Oberg AL, Riggs BL (2006) Hormonal and biochemical determinants of trabecular microstructure at the ultradistal radius in women and men. J Clin Endocrinol Metab 91(3):885–891. doi:10.​1210/​jc.​2005-2065 CrossRefPubMed
10.
go back to reference Boonen S, Pye SR, O’Neill TW, Szulc P, Gielen E, Borghs H, Verschueren S, Claessens F, Adams JE, Ward KA, Bartfai G, Casanueva F, Finn JD, Forti G, Giwercman A, Han TS, Huhtaniemi IT, Kula K, Labrie F, Lean ME, Pendleton N, Punab M, Silman AJ, Tajar A, Wu FC, Vanderschueren D, Group E (2011) Influence of bone remodelling rate on quantitative ultrasound parameters at the calcaneus and DXA BMDa of the hip and spine in middle-aged and elderly European men: the European Male Ageing Study (EMAS). Eur J Endocrinol Eur Fed Endocr Soc 165(6):977–986. doi:10.1530/EJE-11-0353 CrossRef Boonen S, Pye SR, O’Neill TW, Szulc P, Gielen E, Borghs H, Verschueren S, Claessens F, Adams JE, Ward KA, Bartfai G, Casanueva F, Finn JD, Forti G, Giwercman A, Han TS, Huhtaniemi IT, Kula K, Labrie F, Lean ME, Pendleton N, Punab M, Silman AJ, Tajar A, Wu FC, Vanderschueren D, Group E (2011) Influence of bone remodelling rate on quantitative ultrasound parameters at the calcaneus and DXA BMDa of the hip and spine in middle-aged and elderly European men: the European Male Ageing Study (EMAS). Eur J Endocrinol Eur Fed Endocr Soc 165(6):977–986. doi:10.​1530/​EJE-11-0353 CrossRef
15.
go back to reference Balena R, Shih MS, Parfitt AM (1992) Bone resorption and formation on the periosteal envelope of the ilium: a histomorphometric study in healthy women. J Bone Miner Res Off J Am Soc Bone Miner Res 7(12):1475–1482. doi:10.1002/jbmr.5650071216 CrossRef Balena R, Shih MS, Parfitt AM (1992) Bone resorption and formation on the periosteal envelope of the ilium: a histomorphometric study in healthy women. J Bone Miner Res Off J Am Soc Bone Miner Res 7(12):1475–1482. doi:10.​1002/​jbmr.​5650071216 CrossRef
17.
go back to reference Harris TB, Launer LJ, Eiriksdottir G, Kjartansson O, Jonsson PV, Sigurdsson G, Thorgeirsson G, Aspelund T, Garcia ME, Cotch MF, Hoffman HJ, Gudnason V (2007) Age, gene/environment susceptibility-Reykjavik study: multidisciplinary applied phenomics. Am J Epidemiol 165(9):1076–1087. doi:10.1093/aje/kwk115 CrossRefPubMedPubMedCentral Harris TB, Launer LJ, Eiriksdottir G, Kjartansson O, Jonsson PV, Sigurdsson G, Thorgeirsson G, Aspelund T, Garcia ME, Cotch MF, Hoffman HJ, Gudnason V (2007) Age, gene/environment susceptibility-Reykjavik study: multidisciplinary applied phenomics. Am J Epidemiol 165(9):1076–1087. doi:10.​1093/​aje/​kwk115 CrossRefPubMedPubMedCentral
18.
go back to reference Sigurdsson G, Aspelund T, Chang M, Jonsdottir B, Sigurdsson S, Eiriksdottir G, Gudmundsson A, Harris TB, Gudnason V, Lang TF (2006) Increasing sex difference in bone strength in old age: the age, gene/environment susceptibility-Reykjavik study (AGES-REYKJAVIK). Bone 39(3):644–651. doi:10.1016/j.bone.2006.03.020 CrossRefPubMed Sigurdsson G, Aspelund T, Chang M, Jonsdottir B, Sigurdsson S, Eiriksdottir G, Gudmundsson A, Harris TB, Gudnason V, Lang TF (2006) Increasing sex difference in bone strength in old age: the age, gene/environment susceptibility-Reykjavik study (AGES-REYKJAVIK). Bone 39(3):644–651. doi:10.​1016/​j.​bone.​2006.​03.​020 CrossRefPubMed
19.
go back to reference Lang TF, Sigurdsson S, Karlsdottir G, Oskarsdottir D, Sigmarsdottir A, Chengshi J, Kornak J, Harris TB, Sigurdsson G, Jonsson BY, Siggeirsdottir K, Eiriksdottir G, Gudnason V, Keyak JH (2012) Age-related loss of proximal femoral strength in elderly men and women: the age gene/environment susceptibility study—Reykjavik. Bone 50(3):743–748. doi:10.1016/j.bone.2011.12.001 CrossRefPubMedPubMedCentral Lang TF, Sigurdsson S, Karlsdottir G, Oskarsdottir D, Sigmarsdottir A, Chengshi J, Kornak J, Harris TB, Sigurdsson G, Jonsson BY, Siggeirsdottir K, Eiriksdottir G, Gudnason V, Keyak JH (2012) Age-related loss of proximal femoral strength in elderly men and women: the age gene/environment susceptibility study—Reykjavik. Bone 50(3):743–748. doi:10.​1016/​j.​bone.​2011.​12.​001 CrossRefPubMedPubMedCentral
21.
go back to reference von Bonsdorff MB, Groffen DA, Vidal JS, Rantanen T, Jonsson PV, Garcia M, Aspelund T, Eiriksdottir G, Siggeirsdottir K, Launer L, Gudnason V, Harris TB, Age GES-RSI (2013) Coronary artery calcium and physical performance as determinants of mortality in older age: the AGES-Reykjavik study. Int J Cardiol 168(3):2094–2099. doi:10.1016/j.ijcard.2013.01.067 CrossRef von Bonsdorff MB, Groffen DA, Vidal JS, Rantanen T, Jonsson PV, Garcia M, Aspelund T, Eiriksdottir G, Siggeirsdottir K, Launer L, Gudnason V, Harris TB, Age GES-RSI (2013) Coronary artery calcium and physical performance as determinants of mortality in older age: the AGES-Reykjavik study. Int J Cardiol 168(3):2094–2099. doi:10.​1016/​j.​ijcard.​2013.​01.​067 CrossRef
22.
go back to reference Vidal JS, Sigurdsson S, Jonsdottir MK, Eiriksdottir G, Thorgeirsson G, Kjartansson O, Garcia ME, van Buchem MA, Harris TB, Gudnason V, Launer LJ (2010) Coronary artery calcium, brain function and structure: the AGES-Reykjavik study. Stroke J Cereb Circ 41(5):891–897. doi:10.1161/STROKEAHA.110.579581 CrossRef Vidal JS, Sigurdsson S, Jonsdottir MK, Eiriksdottir G, Thorgeirsson G, Kjartansson O, Garcia ME, van Buchem MA, Harris TB, Gudnason V, Launer LJ (2010) Coronary artery calcium, brain function and structure: the AGES-Reykjavik study. Stroke J Cereb Circ 41(5):891–897. doi:10.​1161/​STROKEAHA.​110.​579581 CrossRef
24.
go back to reference Riggs BL, Melton Iii LJ, Melton Iii LJ 3rd, Robb RA, Camp JJ, Atkinson EJ, Peterson JM, Rouleau PA, McCollough CH, Bouxsein ML, Khosla S (2004) Population-based study of age and sex differences in bone volumetric density, size, geometry, and structure at different skeletal sites. J Bone Miner Res Off J Am Soc Bone Miner Res 19(12):1945–1954. doi:10.1359/JBMR.040916 CrossRef Riggs BL, Melton Iii LJ, Melton Iii LJ 3rd, Robb RA, Camp JJ, Atkinson EJ, Peterson JM, Rouleau PA, McCollough CH, Bouxsein ML, Khosla S (2004) Population-based study of age and sex differences in bone volumetric density, size, geometry, and structure at different skeletal sites. J Bone Miner Res Off J Am Soc Bone Miner Res 19(12):1945–1954. doi:10.​1359/​JBMR.​040916 CrossRef
26.
go back to reference Gruber R, Mayer C, Bobacz K, Krauth MT, Graninger W, Luyten FP, Erlacher L (2001) Effects of cartilage-derived morphogenetic proteins and osteogenic protein-1 on osteochondrogenic differentiation of periosteum-derived cells. Endocrinology 142(5):2087–2094. doi:10.1210/endo.142.5.8163 PubMed Gruber R, Mayer C, Bobacz K, Krauth MT, Graninger W, Luyten FP, Erlacher L (2001) Effects of cartilage-derived morphogenetic proteins and osteogenic protein-1 on osteochondrogenic differentiation of periosteum-derived cells. Endocrinology 142(5):2087–2094. doi:10.​1210/​endo.​142.​5.​8163 PubMed
28.
go back to reference Rousseau JC, Sornay-Rendu E, Bertholon C, Chapurlat R, Garnero P (2014) Serum periostin is associated with fracture risk in postmenopausal women: a 7-year prospective analysis of the OFELY study. J Clin Endocrinol Metab 99(7):2533–2539. doi:10.1210/jc.2013-3893 CrossRefPubMed Rousseau JC, Sornay-Rendu E, Bertholon C, Chapurlat R, Garnero P (2014) Serum periostin is associated with fracture risk in postmenopausal women: a 7-year prospective analysis of the OFELY study. J Clin Endocrinol Metab 99(7):2533–2539. doi:10.​1210/​jc.​2013-3893 CrossRefPubMed
29.
go back to reference Saito M, Marumo K (2010) Collagen cross-links as a determinant of bone quality: a possible explanation for bone fragility in aging, osteoporosis, and diabetes mellitus. Osteopor Int J Established Result Coop Eur Found Osteopor Natl Osteopor Found USA 21(2):195–214. doi:10.1007/s00198-009-1066-z CrossRef Saito M, Marumo K (2010) Collagen cross-links as a determinant of bone quality: a possible explanation for bone fragility in aging, osteoporosis, and diabetes mellitus. Osteopor Int J Established Result Coop Eur Found Osteopor Natl Osteopor Found USA 21(2):195–214. doi:10.​1007/​s00198-009-1066-z CrossRef
30.
go back to reference Currey JD (1999) What determines the bending strength of compact bone? J Exp Biol 202(Pt 18):2495–2503PubMed Currey JD (1999) What determines the bending strength of compact bone? J Exp Biol 202(Pt 18):2495–2503PubMed
33.
go back to reference Chaitou A, Boutroy S, Vilayphiou N, Munoz F, Delmas PD, Chapurlat R, Szulc P (2010) Association between bone turnover rate and bone microarchitecture in men: the STRAMBO study. J Bone Miner Res Off J Am Soc Bone Miner Res 25(11):2313–2323. doi:10.1002/jbmr.124 CrossRef Chaitou A, Boutroy S, Vilayphiou N, Munoz F, Delmas PD, Chapurlat R, Szulc P (2010) Association between bone turnover rate and bone microarchitecture in men: the STRAMBO study. J Bone Miner Res Off J Am Soc Bone Miner Res 25(11):2313–2323. doi:10.​1002/​jbmr.​124 CrossRef
34.
go back to reference Bauer DC, Garnero P, Bilezikian JP, Greenspan SL, Ensrud KE, Rosen CJ, Palermo L, Black DM (2006) Short-term changes in bone turnover markers and bone mineral density response to parathyroid hormone in postmenopausal women with osteoporosis. J Clin Endocrinol Metab 91(4):1370–1375. doi:10.1210/jc.2005-1712 CrossRefPubMed Bauer DC, Garnero P, Bilezikian JP, Greenspan SL, Ensrud KE, Rosen CJ, Palermo L, Black DM (2006) Short-term changes in bone turnover markers and bone mineral density response to parathyroid hormone in postmenopausal women with osteoporosis. J Clin Endocrinol Metab 91(4):1370–1375. doi:10.​1210/​jc.​2005-1712 CrossRefPubMed
35.
36.
go back to reference Kung AW, Huang QY (2007) Genetic and environmental determinants of osteoporosis. J Musculoskelet Neuronal Interact 7(1):26–32PubMed Kung AW, Huang QY (2007) Genetic and environmental determinants of osteoporosis. J Musculoskelet Neuronal Interact 7(1):26–32PubMed
38.
go back to reference Garnero P, Borel O, Gineyts E, Duboeuf F, Solberg H, Bouxsein ML, Christiansen C, Delmas PD (2006) Extracellular post-translational modifications of collagen are major determinants of biomechanical properties of fetal bovine cortical bone. Bone 38(3):300–309. doi:10.1016/j.bone.2005.09.014 CrossRefPubMed Garnero P, Borel O, Gineyts E, Duboeuf F, Solberg H, Bouxsein ML, Christiansen C, Delmas PD (2006) Extracellular post-translational modifications of collagen are major determinants of biomechanical properties of fetal bovine cortical bone. Bone 38(3):300–309. doi:10.​1016/​j.​bone.​2005.​09.​014 CrossRefPubMed
39.
go back to reference Paschalis EP, Tatakis DN, Robins S, Fratzl P, Manjubala I, Zoehrer R, Gamsjaeger S, Buchinger B, Roschger A, Phipps R, Boskey AL, Dall’Ara E, Varga P, Zysset P, Klaushofer K, Roschger P (2011) Lathyrism-induced alterations in collagen cross-links influence the mechanical properties of bone material without affecting the mineral. Bone 49(6):1232–1241. doi:10.1016/j.bone.2011.08.027 CrossRefPubMedPubMedCentral Paschalis EP, Tatakis DN, Robins S, Fratzl P, Manjubala I, Zoehrer R, Gamsjaeger S, Buchinger B, Roschger A, Phipps R, Boskey AL, Dall’Ara E, Varga P, Zysset P, Klaushofer K, Roschger P (2011) Lathyrism-induced alterations in collagen cross-links influence the mechanical properties of bone material without affecting the mineral. Bone 49(6):1232–1241. doi:10.​1016/​j.​bone.​2011.​08.​027 CrossRefPubMedPubMedCentral
40.
go back to reference Qiu S, Rao DS, Palnitkar S, Parfitt AM (2002) Age and distance from the surface but not menopause reduce osteocyte density in human cancellous bone. Bone 31(2):313–318CrossRefPubMed Qiu S, Rao DS, Palnitkar S, Parfitt AM (2002) Age and distance from the surface but not menopause reduce osteocyte density in human cancellous bone. Bone 31(2):313–318CrossRefPubMed
41.
go back to reference Norman TL, Wang Z (1997) Microdamage of human cortical bone: incidence and morphology in long bones. Bone 20(4):375–379CrossRefPubMed Norman TL, Wang Z (1997) Microdamage of human cortical bone: incidence and morphology in long bones. Bone 20(4):375–379CrossRefPubMed
42.
go back to reference Ferreira A, Ghazali A, Galvao J, Souberbielle JC, Jehle PM, Mohan S, Descamps-Latscha B, Oprisiu R, Fournier A, Drueke TB (2001) Effect of type of dialysis membrane on bone in haemodialysis patients. Nephrol Dial Trans Off Publ Eur Dial Transpl Assoc Eur Ren Assoc 16(6):1230–1238 Ferreira A, Ghazali A, Galvao J, Souberbielle JC, Jehle PM, Mohan S, Descamps-Latscha B, Oprisiu R, Fournier A, Drueke TB (2001) Effect of type of dialysis membrane on bone in haemodialysis patients. Nephrol Dial Trans Off Publ Eur Dial Transpl Assoc Eur Ren Assoc 16(6):1230–1238
44.
go back to reference Dhonukshe-Rutten RA, Pluijm SM, de Groot LC, Lips P, Smit JH, van Staveren WA (2005) Homocysteine and vitamin B12 status relate to bone turnover markers, broadband ultrasound attenuation, and fractures in healthy elderly people. J Bone Miner Res Off J Am Soc Bone Miner Res 20(6):921–929. doi:10.1359/JBMR.050202 CrossRef Dhonukshe-Rutten RA, Pluijm SM, de Groot LC, Lips P, Smit JH, van Staveren WA (2005) Homocysteine and vitamin B12 status relate to bone turnover markers, broadband ultrasound attenuation, and fractures in healthy elderly people. J Bone Miner Res Off J Am Soc Bone Miner Res 20(6):921–929. doi:10.​1359/​JBMR.​050202 CrossRef
45.
go back to reference Gerdhem P, Ivaska KK, Isaksson A, Pettersson K, Vaananen HK, Obrant KJ, Akesson K (2007) Associations between homocysteine, bone turnover, BMD, mortality, and fracture risk in elderly women. J Bone Miner Res Off J Am Soc Bone Miner Res 22(1):127–134. doi:10.1359/jbmr.061003 CrossRef Gerdhem P, Ivaska KK, Isaksson A, Pettersson K, Vaananen HK, Obrant KJ, Akesson K (2007) Associations between homocysteine, bone turnover, BMD, mortality, and fracture risk in elderly women. J Bone Miner Res Off J Am Soc Bone Miner Res 22(1):127–134. doi:10.​1359/​jbmr.​061003 CrossRef
Metadata
Title
Are bone turnover markers associated with volumetric bone density, size, and strength in older men and women? The AGES–Reykjavik study
Authors
E. A. Marques
V. Gudnason
G. Sigurdsson
T. Lang
F. Johannesdottir
K. Siggeirsdottir
L. Launer
G. Eiriksdottir
T. B. Harris
Publication date
01-05-2016
Publisher
Springer London
Published in
Osteoporosis International / Issue 5/2016
Print ISSN: 0937-941X
Electronic ISSN: 1433-2965
DOI
https://doi.org/10.1007/s00198-015-3442-1

Other articles of this Issue 5/2016

Osteoporosis International 5/2016 Go to the issue