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Is high vitamin B12 status a cause of lung cancer?

, ; , ; Fanidi, Anouar; Ericson, Ulrika LU ; Bojesen, Stig E.; Manjer, Jonas LU and Brennan, Paul (2019) In International Journal of Cancer
Abstract
Vitamin B supplementation can have side effects for human health, including cancer risk. We aimed to elucidate the role of vitamin B12 in lung cancer etiology via direct measurements of pre-diagnostic circulating vitamin B12 concentrations in a nested case–control study, complemented with a Mendelian randomization (MR) approach in an independent case–control sample. We used pre-diagnostic biomarker data from 5183 case–control pairs nested within 20 prospective cohorts, and genetic data from 29,266 cases and 56,450 controls. Exposures included directly measured circulating vitamin B12 in pre-diagnostic blood samples from the nested case–control study, and 8 single nucleotide polymorphisms associated with vitamin B12 concentrations in the MR... (More)
Vitamin B supplementation can have side effects for human health, including cancer risk. We aimed to elucidate the role of vitamin B12 in lung cancer etiology via direct measurements of pre-diagnostic circulating vitamin B12 concentrations in a nested case–control study, complemented with a Mendelian randomization (MR) approach in an independent case–control sample. We used pre-diagnostic biomarker data from 5183 case–control pairs nested within 20 prospective cohorts, and genetic data from 29,266 cases and 56,450 controls. Exposures included directly measured circulating vitamin B12 in pre-diagnostic blood samples from the nested case–control study, and 8 single nucleotide polymorphisms associated with vitamin B12 concentrations in the MR study. Our main outcome of interest was increased risk for lung cancer, overall and by histological subtype, per increase in circulating vitamin B12 concentrations. We found circulating vitamin B12 to be positively associated with overall lung cancer risk in a dose response fashion (odds ratio for a doubling in B12 [OR log2B12 ] = 1.15, 95% confidence interval (95%CI) = 1.06–1.25). The MR analysis based on 8 genetic variants also indicated that genetically determined higher vitamin B12 concentrations were positively associated with overall lung cancer risk (OR per 150 pmol/L standard deviation increase in B12 [OR SD ] = 1.08, 95%CI = 1.00–1.16). Considering the consistency of these two independent and complementary analyses, these findings support the hypothesis that high vitamin B12 status increases the risk of lung cancer. © 2018 International Agency for Research on Cancer (IARC/WHO); licensed by UICC (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
epub
subject
in
International Journal of Cancer
publisher
John Wiley & Sons
external identifiers
  • scopus:85060173493
ISSN
0020-7136
DOI
10.1002/ijc.32033
language
English
LU publication?
yes
id
9f02802a-954f-4d81-9ab6-d90a3a449b43
date added to LUP
2019-04-10 12:38:49
date last changed
2019-07-16 04:07:01
@article{9f02802a-954f-4d81-9ab6-d90a3a449b43,
  abstract     = {Vitamin B supplementation can have side effects for human health, including cancer risk. We aimed to elucidate the role of vitamin B12 in lung cancer etiology via direct measurements of pre-diagnostic circulating vitamin B12 concentrations in a nested case–control study, complemented with a Mendelian randomization (MR) approach in an independent case–control sample. We used pre-diagnostic biomarker data from 5183 case–control pairs nested within 20 prospective cohorts, and genetic data from 29,266 cases and 56,450 controls. Exposures included directly measured circulating vitamin B12 in pre-diagnostic blood samples from the nested case–control study, and 8 single nucleotide polymorphisms associated with vitamin B12 concentrations in the MR study. Our main outcome of interest was increased risk for lung cancer, overall and by histological subtype, per increase in circulating vitamin B12 concentrations. We found circulating vitamin B12 to be positively associated with overall lung cancer risk in a dose response fashion (odds ratio for a doubling in B12 [OR log2B12 ] = 1.15, 95% confidence interval (95%CI) = 1.06–1.25). The MR analysis based on 8 genetic variants also indicated that genetically determined higher vitamin B12 concentrations were positively associated with overall lung cancer risk (OR per 150 pmol/L standard deviation increase in B12 [OR SD ] = 1.08, 95%CI = 1.00–1.16). Considering the consistency of these two independent and complementary analyses, these findings support the hypothesis that high vitamin B12 status increases the risk of lung cancer. © 2018 International Agency for Research on Cancer (IARC/WHO); licensed by UICC},
  author       = {,  and ,  and Fanidi, Anouar and Ericson, Ulrika and Bojesen, Stig E. and Manjer, Jonas and Brennan, Paul},
  issn         = {0020-7136},
  language     = {eng},
  publisher    = {John Wiley & Sons},
  series       = {International Journal of Cancer},
  title        = {Is high vitamin B12 status a cause of lung cancer?},
  url          = {http://dx.doi.org/10.1002/ijc.32033},
  year         = {2019},
}