TY - JOUR TI - Association Between Telomere Length and Risk of Cancer and Non-Neoplastic Diseases A Mendelian Randomization Study AU - Haycock, Philip C. AU - Burgess, Stephen AU - Nounu, Aayah AU - Zheng, Jie AU - and Okoli, George N. AU - Bowden, Jack AU - Wade, Kaitlin Hazel and AU - Timpson, Nicholas J. AU - Evans, David M. AU - Willeit, Peter AU - Aviv, AU - Abraham AU - Gaunt, Tomr. AU - Hemani, Gibran AU - Mangino, Massimo and AU - Ellis, Hayley Patricia AU - Kurian, Kathreena M. AU - Pooley, Karen A. and AU - Eeles, Rosalind A. AU - Lee, Jeffrey E. AU - Fang, Shenying AU - Chen, Wei AU - V. AU - Law, Matthew H. AU - Bowdler, Lisa M. AU - Iles, Mark M. AU - Yang, AU - Qiong AU - Worrall, Bradford B. AU - Markus, Hugh Stephen AU - Hung, AU - Rayjean J. AU - Amos, Chris I. AU - Spurdle, Amanda B. AU - Thompson, AU - Deborah J. AU - O'Mara, Tracy A. AU - Wolpin, Brian AU - Amundadottir, AU - Laufey AU - Stolzenberg-Solomon, Rachael AU - Trichopoulou, Antonia and AU - Onland-Moret, Charlotte AU - Lund, Eiliv AU - Duell, Eric J. AU - Canzian, AU - Federico AU - Severi, Gianluca AU - Overvad, Kim AU - Gunter, Marc J. and AU - Tumino, Rosario AU - Svenson, Ulrika AU - van Rij, Andre AU - Baas, Annette AU - F. AU - Bown, Matthew J. AU - Samani, Nilesh J. AU - van t'Hof, Femke N. G. AU - and Tromp, Gerard AU - Jones, Gregory T. AU - Kuivaniemi, Helena and AU - Elmore, James R. AU - Johansson, Mattias AU - Mckay, James AU - Scelo, AU - Ghislaine AU - carreras-Torres, Robert AU - Gaborieau, Valerie and AU - Brennan, Paul AU - Bracci, Paige M. AU - Neale, Rachel E. AU - Olson, Sara AU - H. AU - Gallinger, Steven AU - Li, Donghui AU - Petersen, Gloria M. and AU - Risch, Harvey A. AU - Klein, Alison P. AU - Han, Jiali AU - Abnet, AU - Christian C. AU - Freedman, Neal D. AU - Taylor, Philip R. AU - Maris, John AU - M. AU - Aben, Katja K. AU - Kiemeney, Lambertus A. AU - Vermeulen, Sita H. AU - and Wiencke, John K. AU - Walsh, Kyle M. AU - Wrensch, Margaret AU - Rice, AU - Terri AU - Turnbull, Clare AU - Litchfield, Kevin AU - Paternoster, Lavinia AU - and Standl, Marie AU - Abecasis, Goncalo R. AU - SanGiovanni, John Paul AU - and Li, Yong AU - Mijatovic, Vladan AU - Sapkota, Yadav AU - Low, Siew-Kee AU - and Zondervan, Krina T. AU - Montgomery, Grant W. AU - Nyholt, Dale R. and AU - van Heel, David A. AU - Hunt, Karen AU - Arking, Dan E. AU - Ashar, Foram AU - N. AU - Sotoodehnia, Nona AU - Woo, Daniel AU - Rosand, Jonathan and AU - Comeau, Mary E. AU - Brown, W. Mark AU - Silverman, Edwin K. AU - Hokanson, AU - John E. AU - Cho, Michael H. AU - Hui, Jennie AU - Ferreira, Manuel A. and AU - Thompson, Philip J. AU - Morrison, Alanna C. AU - Felix, Janine F. and AU - Smith, Nicholas L. AU - Christiano, Angela M. AU - Petukhova, Lynn and AU - Betz, Regina C. AU - Fan, Xing AU - Zhang, Xuejun AU - Zhu, Caihong and AU - Langefeld, Carl D. AU - Thompson, Susan D. AU - Wang, Feijie AU - Lin, Xu AU - and Schwartz, David A. AU - Fingerlin, Tasha AU - Rotter, Jerome I. and AU - Cotch, Mary Frances AU - Jensen, Richard A. AU - Munz, Matthias and AU - Dommisch, Henrik AU - Schaefer, Arne S. AU - Han, Fang AU - Ollila, Hanna AU - M. AU - Hillary, Ryan P. AU - Albagha, Omar AU - Ralston, Stuart H. and AU - Zeng, Chenjie AU - Zheng, Wei AU - Shu, Xiao-Ou AU - Reis, Andre AU - Uebe, AU - Steffen AU - Hueffmeier, Ulrike AU - Kawamura, Yoshiya AU - Otowa, Takeshi AU - and Sasaki, Tsukasa AU - Hibberd, Martin Lloyd AU - Davila, Sonia AU - Xie, AU - Gang AU - Siminovitch, Katherine AU - Bei, Jin-Xin AU - Zeng, Yi-Xin and AU - Foersti, Asta AU - Chen, Bowang AU - Landi, Stefano AU - Franke, Andre and AU - Fischer, Annegret AU - Ellinghaus, David AU - Flores, Carlos AU - Noth, AU - Imre AU - Ma, Shwu-Fan AU - Foo, Jia Nee AU - Liu, Jianjun AU - Kim, AU - Jong-Won AU - Cox, David G. AU - Delattre, Olivier AU - Mirabeau, Olivier AU - and Skibola, Christine F. AU - Tang, Clara S. AU - Garcia-Barcelo, Merce AU - and Chang, Kai-Ping AU - Su, Wen-Hui AU - Chang, Yu-Sun AU - Martin, AU - Nicholas G. AU - Gordon, Scott AU - Wade, Tracey D. AU - Lee, Chaeyoung and AU - Kubo, Michiaki AU - Cha, Pei-Chieng AU - Nakamura, Yusuke AU - Levy, Daniel AU - and Kimura, Masayuki AU - Hwang, Shih-Jen AU - Hunt, Steven AU - Spector, AU - Tim AU - Soranzo, Nicole AU - Manichaikul, Aniw. AU - Barr, Graham and AU - Kahali, Bratati AU - Speliotes, Elizabeth AU - Yerges-Armstrong, LauraM. AU - and Cheng, Ching-Yu AU - Jonas, Jost B. AU - Wong, Tien Yin AU - Fogh, AU - Isabella AU - Lin, Kuang AU - Powell, John F. AU - Rice, Kenneth and AU - Relton, Caroline L. AU - Martin, Richard M. AU - Smith, George Davey and AU - Telomeres Mendelian Randomization JO - JAMA Oncology PY - 2017 VL - 3 TODO - 5 SP - 636-651 PB - AMER MEDICAL ASSOC SN - 2374-2437, 2374-2445 TODO - 10.1001/jamaoncol.2016.5945 TODO - null TODO - IMPORTANCE The causal direction and magnitude of the association between telomere length and incidence of cancer and non-neoplastic diseases is uncertain owing to the susceptibility of observational studies to confounding and reverse causation. OBJECTIVE To conduct a Mendelian randomization study, using germline genetic variants as instrumental variables, to appraise the causal relevance of telomere length for risk of cancer and non-neoplastic diseases. DATA SOURCES Genomewide association studies (GWAS) published up to January 15, 2015. STUDY SELECTION GWAS of noncommunicable diseases that assayed germline genetic variation and did not select cohort or control participants on the basis of preexisting diseases. Of 163 GWAS of noncommunicable diseases identified, summary data from 103 were available. DATA EXTRACTION AND SYNTHESIS Summary association statistics for single nucleotide polymorphisms (SNPs) that are strongly associated with telomere length in the general population. MAIN OUTCOMES AND MEASURES Odds ratios (ORs) and 95% confidence intervals (CIs) for disease per standard deviation (SD) higher telomere length due to germline genetic variation. RESULTS Summary data were available for 35 cancers and 48 non-neoplastic diseases, corresponding to 420 081 cases (median cases, 2526 per disease) and 1 093 105 controls (median, 6789 per disease). Increased telomere length due to germline genetic variation was generally associated with increased risk for site-specific cancers. The strongest associations (ORs [ 95% CIs] per 1-SD change in genetically increased telomere length) were observed for glioma, 5.27 (3.15-8.81); serous low-malignant-potential ovarian cancer, 4.35 (2.39-7.94); lung adenocarcinoma, 3.19 (2.40-4.22); neuroblastoma, 2.98 (1.92-4.62); bladder cancer, 2.19 (1.32-3.66); melanoma, 1.87 (1.55-2.26); testicular cancer, 1.76 (1.02-3.04); kidney cancer, 1.55 (1.08-2.23); and endometrial cancer, 1.31 (1.07-1.61). Associations were stronger for rarer cancers and at tissue sites with lower rates of stem cell division. There was generally little evidence of association between genetically increased telomere length and risk of psychiatric, autoimmune, inflammatory, diabetic, and other non-neoplastic diseases, except for coronary heart disease (OR, 0.78 [ 95% CI, 0.67-0.90]), abdominal aortic aneurysm (OR, 0.63 [ 95% CI, 0.49-0.81]), celiac disease (OR, 0.42 [ 95% CI, 0.28-0.61]) and interstitial lung disease (OR, 0.09 [ 95% CI, 0.05-0.15]). CONCLUSIONS AND RELEVANCE It is likely that longer telomeres increase risk for several cancers but reduce risk for some non-neoplastic diseases, including cardiovascular diseases. ER -