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- Schock, Helena, 1984-, et al.
(författare)
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Anti-Mullerian hormone and risk of invasive serous ovarian cancer
- 2014
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Ingår i: Cancer Causes and Control. - : Springer. - 0957-5243 .- 1573-7225. ; 25:5, s. 583-589
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Tidskriftsartikel (refereegranskat)abstract
- Epithelial ovarian cancers either arise directly from Mullerian-type epithelium or acquire Mullerian characteristics in the course of neoplastic transformation. The anti-Mullerian hormone (AMH) causes regression of Mullerian structures during fetal development in males and has been shown to inhibit the growth of epithelial ovarian cancer. Therefore, we hypothesized that pre-diagnostic serum concentrations of AMH are inversely associated with risk of invasive serous ovarian cancer. A case-control study (107 cases, 208 controls) was nested within the population-based Finnish Maternity Cohort (1986-2007). The sample donated during the first trimester of the last pregnancy preceding cancer diagnosis of the case subjects was selected for the study. For each case, two controls, matched on age and date at sampling, as well as parity at sampling and at cancer diagnosis were selected. AMH was measured by a second-generation AMH ELISA. Conditional logistic regression was used to compute odds ratios (OR) and 95 % confidence intervals (CI) for invasive serous ovarian cancer associated with AMH concentrations. Overall AMH concentrations were not associated with risk of invasive serous ovarian cancer (OR 0.93; 95 % CI 0.49-1.77 for top vs. bottom tertile, P (trend) = 0.83). In women older than the median age at sampling (32.7 years), a doubling of AMH was associated with decreased risk (OR 0.69; 95 % CI 0.49-0.96), whereas an increased risk (OR 1.64; 95 % CI 1.06-2.54) was observed in younger women, P (homogeneity) = 0.002. In this first prospective investigation, risk of invasive serous ovarian cancer was not associated with pre-diagnostic AMH concentrations overall; however, the association may depend on age at AMH measurement.
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- Rumrich, IK, et al.
(författare)
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Smoking during pregnancy in Finland - Trends in the MATEX cohort
- 2019
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Ingår i: Scandinavian journal of public health. - : SAGE Publications. - 1651-1905 .- 1403-4948. ; 47:8, s. 890-898
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Tidskriftsartikel (refereegranskat)abstract
- Aims: In Finland, smoking rates in the general population are decreasing due to increased awareness of the adverse effects and tightened tobacco legislation. However, previous studies have shown that smoking in pregnant Finnish women remained as high as in the general Finnish female population at around 15% in 2010. Our aim was to describe temporal and spatial trends in smoking behaviour, and determinants of changes in smoking behaviour between first and second pregnancy. Methods: Self-reported smoking from the Finnish Medical Birth Register covered the years 1991–2015 ( N=1,435,009). The association of maternal age and socioeconomic status with smoking rate was analysed. Spatial trends were assessed at municipality level. Results: The overall smoking rate during early pregnancy remained fairly stable at around 15% from 1991 to 2015, but increased in teenage and young women below 25 years of age. The mean smoking rate (36%) was higher in these age groups than in older pregnant women (11%). Through the study period the smoking rate remained higher in blue collar workers compared with higher socioeconomic groups. Between the first and second child, on average only 4% of women started to smoke and 41% quitted. Smoking rates developed less favourably in Eastern Finland. Conclusions: The observed increase in smoking rate during pregnancy in teenage and young women is concerning. Pregnancy is a trigger point for smoking cessation in a big fraction of pregnant women. More studies are needed to explain the opposite trends of smoking rates in Northern and Western Finland compared with Eastern Finland.
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- Toriola, A T, et al.
(författare)
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Changes in pre-diagnostic serum C-reactive protein concentrations and ovarian cancer risk : a longitudinal study
- 2011
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Ingår i: Annals of Oncology. - Oxford : Oxford University Press. - 0923-7534 .- 1569-8041. ; 22:8, s. 1916-1921
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Evidence suggests that inflammation may be associated with increased risk of ovarian cancer but there is paucity of studies investigating this association, especially using over-time changes in inflammatory biomarkers.MATERIALS AND METHODS: We conducted a prospective population-based case-control study nested within the Finnish Maternity Cohort (FMC). Within the FMC, 170 women with ovarian cancer who had donated serum samples to the cohort twice, ≥1 year apart, before cancer diagnoses were identified. One control per case was matched for age, parity and sampling date.RESULTS: Comparing the highest with lowest tertiles, the odds ratio (OR) of ovarian cancer using the first set of serum samples (mean lag time to cancer diagnosis 9.0 years) was 1.62 [95% confidence interval (CI) 0.93-2.83]. However, analysis conducted using the second set of serum samples donated closer to cancer diagnosis (mean lag time 6.4 years) revealed a significantly increased risk of ovarian cancer comparing extreme tertiles of C-reactive protein (CRP) concentrations; OR 1.96 (95% CI 1.11-3.4). Over time, increases in individuals' CRP concentrations were also associated with increased risk; OR 1.90 (95% CI 1.12-3.23).CONCLUSION: The results suggest that inflammation may precede ovarian cancer since increasing CRP concentrations, both across tertiles and longitudinally at the individual level, were associated with increased risk.
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- Holl, Katsiaryna, et al.
(författare)
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Endogenous steroid hormone levels in early pregnancy and risk of testicular cancer in the offspring: A nested case-referent study
- 2009
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Ingår i: International Journal of Cancer. - : Wiley. - 0020-7136 .- 1097-0215. ; 124:12, s. 2923-2928
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Tidskriftsartikel (refereegranskat)abstract
- According to the leading hypothesis on testicular cancer (TC) etiology exposure to a specific pattern of steroid hormones in utero, in particular, to high levels of estrogens and low levels of androgens is the major determinant of TC risk in the offspring. We performed a case-referent study nested within Finnish, Swedish and Icelandic maternity cohorts exploiting early pregnancy serum samples to evaluate the role of maternal endogenous steroid hormones with regard to the risk of TC. TC cases and referents were aged between 0 and 25 years. For each case-index mother pair, three or four matched referent-referent mother pairs Were identified using national population registries. First trimester or early second trimester sera were retrieved from the index mothers of 73 TC cases and 286 matched referent mothers, and were tested for dehydroepiandrosterone sulfate (DHEAS), androstenedione, testosterone, estradiol, estrone, and sex hormone binding globulin (SHBG,). Offspring of mothers with high DHEAS levels had a significantly decreased risk of TC (OR for highest vs. lowest DHEAS quartile, 0.18 (95% CI 0.06-0.58). In contrast, offspring of mothers With high androstenedione levels had ail increased risk of TC (OR 4.1; 95% CI 1.2-12.0). High maternal total estradiol level also tended to be associated with an increased risk of TC in the offspring (OR 32; 95% CI 0.98-1,090). We report the first direct evidence that interplay or maternal steroid hormones in the early pregnancy is important in the etiology of TC in the offspring. (C) 2009 UICC
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- Holl, Katsiaryna, et al.
(författare)
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Maternal Epstein-Barr virus and cytomegalovirus infections and risk of testicular cancer in the offspring: a nested case-control study
- 2008
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Ingår i: APMIS : acta pathologica, microbiologica, et immunologica Scandinavica. - Oxford : Wiley. - 1600-0463 .- 0903-4641. ; 116:9, s. 816-822
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Tidskriftsartikel (refereegranskat)abstract
- During recent decades the incidence of testicular cancer (TC) has increased rapidly around the world. Associated exogenous etiological factors might therefore be identifiable. We performed a case-control study nested within Finnish, Swedish and Icelandic maternity cohorts exploiting early pregnancy serum samples to evaluate the role of congenital or neonatal infections with Epstein-Barr virus (EBV) and cytomegalovirus (CMV) as risk factors of TC in the offspring. For each case-index mother pair, three or four matched control-control mother pairs were identified using national population registries. First trimester sera were retrieved from the index mothers of 66 TC cases and 258 matched control mothers and were tested for antibodies to EBV and CMV. High level of maternal EBV IgG antibodies was associated with significantly increased risk of TC in the offspring (odds ratio (OR) 2.50; 95% confidence interval (CI) 1.15, 5.40), especially with risk of non-seminoma TC (OR, 2.73: 95% CI, 1.25, 5.99) and non-seminoma TC diagnosed under 8 years of age(OR, 2.72; 95% CI, 1.05, 7.04). In contrast, offspring of CMV IgG-seropositive mothers had a decreased risk of TC diagnosed under 8 years of age (OR, 0.35; 95% CI, 0.14, 0.89). Our results suggest that EBV and CMV infections may be associated with TC.
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