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Prospective study o...
Prospective study of IGF-I, IGF-binding proteins, and breast cancer risk, in Northern and Southern Sweden
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Kaaks, Rudolf (author)
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Lundin, Eva (author)
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- Manjer, Jonas (author)
- Lund University,Lunds universitet,Kirurgi,Forskargrupper vid Lunds universitet,Surgery,Lund University Research Groups
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Rinaldi, Sabina (author)
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Biessy, Carine (author)
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- Söderberg, Stefan (author)
- Umeå universitet,Kardiologi
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Lenner, Per (author)
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- Janzon, Lars (author)
- Lund University,Lunds universitet,Kardiovaskulär forskning - epidemiologi,Forskargrupper vid Lunds universitet,Cardiovascular Research - Epidemiology,Lund University Research Groups
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Riboli, Elio (author)
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- Berglund, Göran (author)
- Lund University,Lunds universitet,Internmedicin - epidemiologi,Forskargrupper vid Lunds universitet,Internal Medicine - Epidemiology,Lund University Research Groups
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Hallmans, Göran (author)
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(creator_code:org_t)
- 2002
- 2002
- English.
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In: Cancer Causes and Control. - 1573-7225 .- 0957-5243. ; 13:4, s. 307-316
- Related links:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- Objective: To examine the possible relationships of breast cancer risk to prediagnostic plasma levels of insulin; insulin-like growth factor-I (IGF-I); and IGF-binding proteins -1, -2, and -3. Methods: Within two prospective cohorts in Umea and Malmo we measured plasma concentrations of insulin, IGF-I, and IGFBPs for a total of 513 incident breast cancer cases and 987 matched controls. Results: Globally, risk was unassociated with levels of IGF-I, IGFBP-3, or IGF-I adjusted for IGFBP-3. When breaking down the analysis by subgroups of age at blood donation, an increase in risk was observed for increasing levels of IGF-I in women aged 55 or older, in the Umea cohort only (odds ratios of 1.00, 1.73, 1.76, 1.90; p(trend) = 0.05). This effect weakened, however, when the analysis was restricted to subjects who did not use exogenous hormones for the treatment of menopausal symptoms. Levels of IGF-I and IGFBP-3 were not related to risk in younger women, recruited before age 50, contrary to observations from previous studies. In a subcohort where blood samples had been collected after at least four hours of fasting, breast cancer risk showed no clear associations with levels of insulin, IGFBP-1, or IGFBP-2. Conclusions: Our results do not confirm earlier findings of an association of plasma IGF-I levels with breast cancer risk especially in young women, but suggest a possible association with postmenopausal breast cancer risk, possibly among ERT/HRT users only. Our results do not support the hypothesis that elevated plasma insulin levels, and reduced levels of IGFBP-1 and IGFBP-2, are associated with increased breast cancer risk.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cancer and Oncology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine (hsv//eng)
Keyword
- IGFBP-2
- IGFBP-1
- IGF-I
- breast cancer
- insulin
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Kaaks, Rudolf
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Lundin, Eva
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Manjer, Jonas
-
Rinaldi, Sabina
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Biessy, Carine
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Söderberg, Stefa ...
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show more...
-
Lenner, Per
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Janzon, Lars
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Riboli, Elio
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Berglund, Göran
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Hallmans, Göran
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show less...
- About the subject
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Clinical Medicin ...
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and Cancer and Oncol ...
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Clinical Medicin ...
- Articles in the publication
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Cancer Causes an ...
- By the university
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Lund University
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Umeå University