15 results on '"Tomi-Pekka Tuomainen"'
Search Results
2. Predictive value for cardiovascular events of common carotid intima media thickness and its rate of change in individuals at high cardiovascular risk - Results from the PROG-IMT collaboration.
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Matthias W Lorenz, Lu Gao, Kathrin Ziegelbauer, Giuseppe Danilo Norata, Jean Philippe Empana, Irene Schmidtmann, Hung-Ju Lin, Stela McLachlan, Lena Bokemark, Kimmo Ronkainen, Mauro Amato, Ulf Schminke, Sathanur R Srinivasan, Lars Lind, Shuhei Okazaki, Coen D A Stehouwer, Peter Willeit, Joseph F Polak, Helmuth Steinmetz, Dirk Sander, Holger Poppert, Moise Desvarieux, M Arfan Ikram, Stein Harald Johnsen, Daniel Staub, Cesare R Sirtori, Bernhard Iglseder, Oscar Beloqui, Gunnar Engström, Alfonso Friera, Francesco Rozza, Wuxiang Xie, Grace Parraga, Liliana Grigore, Matthieu Plichart, Stefan Blankenberg, Ta-Chen Su, Caroline Schmidt, Tomi-Pekka Tuomainen, Fabrizio Veglia, Henry Völzke, Giel Nijpels, Johann Willeit, Ralph L Sacco, Oscar H Franco, Heiko Uthoff, Bo Hedblad, Carmen Suarez, Raffaele Izzo, Dong Zhao, Thapat Wannarong, Alberico Catapano, Pierre Ducimetiere, Christine Espinola-Klein, Kuo-Liong Chien, Jackie F Price, Göran Bergström, Jussi Kauhanen, Elena Tremoli, Marcus Dörr, Gerald Berenson, Kazuo Kitagawa, Jacqueline M Dekker, Stefan Kiechl, Matthias Sitzer, Horst Bickel, Tatjana Rundek, Albert Hofman, Ellisiv B Mathiesen, Samuela Castelnuovo, Manuel F Landecho, Maria Rosvall, Rafael Gabriel, Nicola de Luca, Jing Liu, Damiano Baldassarre, Maryam Kavousi, Eric de Groot, Michiel L Bots, David N Yanez, Simon G Thompson, and PROG-IMT study group
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Medicine ,Science - Abstract
AIMS:Carotid intima media thickness (CIMT) predicts cardiovascular (CVD) events, but the predictive value of CIMT change is debated. We assessed the relation between CIMT change and events in individuals at high cardiovascular risk. METHODS AND RESULTS:From 31 cohorts with two CIMT scans (total n = 89070) on average 3.6 years apart and clinical follow-up, subcohorts were drawn: (A) individuals with at least 3 cardiovascular risk factors without previous CVD events, (B) individuals with carotid plaques without previous CVD events, and (C) individuals with previous CVD events. Cox regression models were fit to estimate the hazard ratio (HR) of the combined endpoint (myocardial infarction, stroke or vascular death) per standard deviation (SD) of CIMT change, adjusted for CVD risk factors. These HRs were pooled across studies. In groups A, B and C we observed 3483, 2845 and 1165 endpoint events, respectively. Average common CIMT was 0.79mm (SD 0.16mm), and annual common CIMT change was 0.01mm (SD 0.07mm), both in group A. The pooled HR per SD of annual common CIMT change (0.02 to 0.43mm) was 0.99 (95% confidence interval: 0.95-1.02) in group A, 0.98 (0.93-1.04) in group B, and 0.95 (0.89-1.04) in group C. The HR per SD of common CIMT (average of the first and the second CIMT scan, 0.09 to 0.75mm) was 1.15 (1.07-1.23) in group A, 1.13 (1.05-1.22) in group B, and 1.12 (1.05-1.20) in group C. CONCLUSIONS:We confirm that common CIMT is associated with future CVD events in individuals at high risk. CIMT change does not relate to future event risk in high-risk individuals.
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- 2018
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3. Clustering of cardiovascular risk factors and carotid intima-media thickness: The USE-IMT study.
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Xin Wang, Geertje W Dalmeijer, Hester M den Ruijter, Todd J Anderson, Annie R Britton, Jacqueline Dekker, Gunnar Engström, Greg W Evans, Jacqueline de Graaf, Diederick E Grobbee, Bo Hedblad, Suzanne Holewijn, Ai Ikeda, Jussi Kauhanen, Kazuo Kitagawa, Akihiko Kitamura, Sudhir Kurl, Eva M Lonn, Matthias W Lorenz, Ellisiv B Mathiesen, Giel Nijpels, Shuhei Okazaki, Joseph F Polak, Jacqueline F Price, Christopher M Rembold, Maria Rosvall, Tatjana Rundek, Jukka T Salonen, Matthias Sitzer, Coen D A Stehouwer, Tomi-Pekka Tuomainen, Sanne A E Peters, and Michiel L Bots
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Medicine ,Science - Abstract
BACKGROUND:The relation of a single risk factor with atherosclerosis is established. Clinically we know of risk factor clustering within individuals. Yet, studies into the magnitude of the relation of risk factor clusters with atherosclerosis are limited. Here, we assessed that relation. METHODS:Individual participant data from 14 cohorts, involving 59,025 individuals were used in this cross-sectional analysis. We made 15 clusters of four risk factors (current smoking, overweight, elevated blood pressure, elevated total cholesterol). Multilevel age and sex adjusted linear regression models were applied to estimate mean differences in common carotid intima-media thickness (CIMT) between clusters using those without any of the four risk factors as reference group. RESULTS:Compared to the reference, those with 1, 2, 3 or 4 risk factors had a significantly higher common CIMT: mean difference of 0.026 mm, 0.052 mm, 0.074 mm and 0.114 mm, respectively. These findings were the same in men and in women, and across ethnic groups. Within each risk factor cluster (1, 2, 3 risk factors), groups with elevated blood pressure had the largest CIMT and those with elevated cholesterol the lowest CIMT, a pattern similar for men and women. CONCLUSION:Clusters of risk factors relate to increased common CIMT in a graded manner, similar in men, women and across race-ethnic groups. Some clusters seemed more atherogenic than others. Our findings support the notion that cardiovascular prevention should focus on sets of risk factors rather than individual levels alone, but may prioritize within clusters.
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- 2017
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4. Relevance of vitamin D receptor target genes for monitoring the vitamin D responsiveness of primary human cells.
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Maja Vukić, Antonio Neme, Sabine Seuter, Noora Saksa, Vanessa D F de Mello, Tarja Nurmi, Matti Uusitupa, Tomi-Pekka Tuomainen, Jyrki K Virtanen, and Carsten Carlberg
- Subjects
Medicine ,Science - Abstract
Vitamin D3 has transcriptome- and genome-wide effects and activates, via the binding of its metabolite 1α,25-dihydroxyvitamin D3 to the transcription factor vitamin D receptor (VDR), several hundred target genes. Using samples from a 5-month vitamin D3 intervention study (VitDmet), we recently reported that the expression of 12 VDR target genes in peripheral blood mononuclear cells (PBMCs) as well as 12 biochemical and clinical parameters of the study participants are significantly triggered by vitamin D3. In this study, we performed a more focused selection of further 12 VDR target genes and demonstrated that changes of their mRNA expression in PBMCs of VitDmet subjects significantly correlate with alterations of 25-hydroxyvitamin D3 serum levels. Network and self-organizing map analysis of these datasets together with that of the other 24 parameters was followed by relevance calculations and identified changes in parathyroid hormone serum levels and the expression of the newly selected genes STS, BCL6, ITGAM, LRRC25, LPGAT1 and TREM1 as well as of the previously reported genes DUSP10 and CD14 as the most relevant parameters for describing vitamin D responsiveness in vivo. Moreover, parameter relevance ranking allowed the segregation of study subjects into high and low responders. Due to the long intervention period the vitamin D response was not too prominent on the level of transcriptional activation. Therefore, we performed in the separate VitDbol trial a short-term but high dose stimulation with a vitamin D3 bolus. In PBMCs of VitDbol subjects we observed direct transcriptional effects on the selected VDR target genes, such as an up to 2.1-fold increase already one day after supplementation onset. In conclusion, both long-term and short-term vitamin D3 supplementation studies allow monitoring the vitamin D responsiveness of human individuals and represent new types of human in vivo vitamin D3 investigations.
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- 2015
- Full Text
- View/download PDF
5. Testosterone, sex hormone-binding globulin and the metabolic syndrome in men: an individual participant data meta-analysis of observational studies.
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Judith S Brand, Maroeska M Rovers, Bu B Yeap, Harald J Schneider, Tomi-Pekka Tuomainen, Robin Haring, Giovanni Corona, Altan Onat, Marcello Maggio, Claude Bouchard, Peter C Y Tong, Richard Y T Chen, Masahiro Akishita, Jourik A Gietema, Marie-Hélène Gannagé-Yared, Anna-Lena Undén, Aarno Hautanen, Nicolai P Goncharov, Philip Kumanov, S A Paul Chubb, Osvaldo P Almeida, Hans-Ulrich Wittchen, Jens Klotsche, Henri Wallaschofski, Henry Völzke, Jussi Kauhanen, Jukka T Salonen, Luigi Ferrucci, and Yvonne T van der Schouw
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Medicine ,Science - Abstract
BACKGROUND:Low total testosterone (TT) and sex hormone-binding globulin (SHBG) concentrations have been associated with the metabolic syndrome (MetS) in men, but the reported strength of association varies considerably. OBJECTIVES:We aimed to investigate whether associations differ across specific subgroups (according to age and body mass index (BMI)) and individual MetS components. DATA SOURCES:Two previously published meta-analyses including an updated systematic search in PubMed and EMBASE. STUDY ELIGIBILITY CRITERIA:Cross-sectional or prospective observational studies with data on TT and/or SHBG concentrations in combination with MetS in men. METHODS:We conducted an individual participant data meta-analysis of 20 observational studies. Mixed effects models were used to assess cross-sectional and prospective associations of TT, SHBG and free testosterone (FT) with MetS and its individual components. Multivariable adjusted odds ratios (ORs) and hazard ratios (HRs) were calculated and effect modification by age and BMI was studied. RESULTS:Men with low concentrations of TT, SHBG or FT were more likely to have prevalent MetS (ORs per quartile decrease were 1.69 (95% CI 1.60-1.77), 1.73 (95% CI 1.62-1.85) and 1.46 (95% CI 1.36-1.57) for TT, SHBG and FT, respectively) and incident MetS (HRs per quartile decrease were 1.25 (95% CI 1.16-1.36), 1.44 (95% 1.30-1.60) and 1.14 (95% 1.01-1.28) for TT, SHBG and FT, respectively). Overall, the magnitude of associations was largest in non-overweight men and varied across individual components: stronger associations were observed with hypertriglyceridemia, abdominal obesity and hyperglycaemia and associations were weakest for hypertension. CONCLUSIONS:Associations of testosterone and SHBG with MetS vary according to BMI and individual MetS components. These findings provide further insights into the pathophysiological mechanisms linking low testosterone and SHBG concentrations to cardiometabolic risk.
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- 2014
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6. Primary vitamin D target genes allow a categorization of possible benefits of vitamin D₃ supplementation.
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Carsten Carlberg, Sabine Seuter, Vanessa D F de Mello, Ursula Schwab, Sari Voutilainen, Kari Pulkki, Tarja Nurmi, Jyrki Virtanen, Tomi-Pekka Tuomainen, and Matti Uusitupa
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Medicine ,Science - Abstract
Vitamin D deficiency has been associated with an increased risk of developing a number of diseases. Here we investigated samples from 71 pre-diabetic individuals of the VitDmet study, a 5-month high dose vitamin D3 intervention trial during Finnish winter, for their changes in serum 25-hydroxyvitamin D3 (25(OH)D3) concentrations and the expression of primary vitamin D target genes in peripheral blood mononuclear cells and adipose tissue. A negative correlation between serum concentrations of parathyroid hormone and 25(OH)D3 suggested an overall normal physiological vitamin D response among the participants. The genes CD14 and thrombomodulin (THBD) are up-regulated primary vitamin D targets and showed to be suitable gene expression markers for vitamin D signaling in both primary tissues. However, in a ranking of the samples concerning their expected response to vitamin D only the top half showed a positive correlation between the changes of CD14 or THBD mRNA and serum 25(OH)D3 concentrations. Interestingly, this categorization allows unmasking a negative correlation between changes in serum concentrations of 25(OH)D3 and the inflammation marker interleukin 6. We propose the genes CD14 and THBD as transcriptomic biomarkers, from which the effects of a vitamin D3 supplementation can be evaluated. These biomarkers allow the classification of subjects into those, who might benefit from a vitamin D3 supplementation, and others who do not.
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- 2013
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- View/download PDF
7. Serum long-chain n-3 polyunsaturated fatty acids, mercury, and risk of sudden cardiac death in men: a prospective population-based study.
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Jyrki K Virtanen, Jari A Laukkanen, Jaakko Mursu, Sari Voutilainen, and Tomi-Pekka Tuomainen
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Medicine ,Science - Abstract
ObjectivesFish consumption has been associated with reduced risk of cardiovascular diseases (CVD), especially sudden cardiac death (SCD). Fish is the major source of long-chain n-3 polyunsaturated fatty acids (PUFA) eicosapentaenoic acid and docosahexaenoic acid. It is also a major source of methylmercury, which was associated with increased risk of CVD in this study population. Impact of interaction between long-chain n-3 PUFA and methylmercury on the SCD risk is unknown.MethodsA total of 1857 men from the prospective, population-based Kuopio Ischaemic Heart Disease Risk Factor study, aged 42-60 years and free of CVD at baseline in 1984-1989, were studied. Serum long-chain n-3 PUFA was used as the marker for long-chain n-3 PUFA intake and hair mercury as the marker for mercury exposure.ResultsDuring the mean follow-up of 20.1 years, 91 SCD events occurred. In the multivariate Cox proportional hazards regression models, serum long-chain n-3 PUFA concentration was not associated with the risk of SCD until hair mercury was accounted for; then the hazard ratio (HR) in the highest vs. lowest tertile was 0.54 [95% confidence interval (CI) 0.32 to 0.91, p for trend = 0.046]. When the analyses were stratified by hair mercury content, among those with lower hair mercury, each 0.5 percentage unit increase in the serum long-chain n-3 PUFA was associated with HR of 0.77 (95% CI 0.64 to 0.93), whereas no association was seen among those with higher hair mercury (p for interaction = 0.01). Among the individual long-chain n-3 PUFA, docosahexaenoic acid was most strongly associated with the risk.ConclusionHigh exposure to mercury may reduce the benefits of long-chain n-3 PUFA on SCD.
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- 2012
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8. Birth weight in relation to leisure time physical activity in adolescence and adulthood: meta-analysis of results from 13 nordic cohorts.
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Lise Geisler Andersen, Lars Angquist, Michael Gamborg, Liisa Byberg, Calle Bengtsson, Dexter Canoy, Johan G Eriksson, Marit Eriksson, Marjo-Riitta Järvelin, Lauren Lissner, Tom I Nilsen, Merete Osler, Kim Overvad, Finn Rasmussen, Minna K Salonen, Lene Schack-Nielsen, Tuija H Tammelin, Tomi-Pekka Tuomainen, Thorkild I A Sørensen, Jennifer L Baker, and NordNet Study Group
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Medicine ,Science - Abstract
Prenatal life exposures, potentially manifested as altered birth size, may influence the later risk of major chronic diseases through direct biologic effects on disease processes, but also by modifying adult behaviors such as physical activity that may influence later disease risk.We investigated the association between birth weight and leisure time physical activity (LTPA) in 43,482 adolescents and adults from 13 Nordic cohorts. Random effects meta-analyses were performed on categorical estimates from cohort-, age-, sex- and birth weight specific analyses. Birth weight showed a reverse U-shaped association with later LTPA; within the range of normal weight the association was negligible but weights below and above this range were associated with a lower probability of undertaking LTPA. Compared with the reference category (3.26-3.75 kg), the birth weight categories of 1.26-1.75, 1.76-2.25, 2.26-2.75, and 4.76-5.25 kg, had odds ratios of 0.67 (95% confidence interval: 0.47, 0.94), 0.72 (0.59, 0.88), 0.89 (0.79, 0.99), and 0.65 (0.50, 0.86), respectively. The shape and strength of the birth weight-LTPA association was virtually independent of sex, age, gestational age, educational level, concurrent body mass index, and smoking.The association between birth weight and undertaking LTPA is very weak within the normal birth weight range, but both low and high birth weights are associated with a lower probability of undertaking LTPA, which hence may be a mediator between prenatal influences and later disease risk.
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- 2009
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9. Functional COMT Val158Met polymorphism, risk of acute coronary events and serum homocysteine: the Kuopio ischaemic heart disease risk factor study.
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Sari Voutilainen, Tomi-Pekka Tuomainen, Maarit Korhonen, Jaakko Mursu, Jyrki K Virtanen, Pertti Happonen, Georg Alfthan, Iris Erlund, Kari E North, M J Mosher, Jussi Kauhanen, Jari Tiihonen, George A Kaplan, and Jukka T Salonen
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Medicine ,Science - Abstract
The role of circulating levels of total homocysteine tHcy in the development of coronary heart disease (CHD) is still under debate. One reason for conflicting results between previous studies on homocysteine and heart diseases could be consequence of different interactions between homocysteine and genes in different study populations. Many genetic factors play a role in folate-homocysteine metabolism, like functional polymorphism (Val108Met) in the Catechol-O-methyltransferase (COMT) gene.Our aim was to examine the role of COMT Val158Met polymorphism and interaction of this polymorphism with serum tHcy and folate concentration on the risk of acute coronary and events in middle-aged men from eastern Finland. A population-based prospective cohort of 792 men aged 46-64 years was examined as part of the Kuopio Ischaemic Heart Disease Risk Factor Study. During an average follow-up of 9.3 years, there were 69 acute coronary events in men with no previous history of CHD. When comparing the COMT low activity genotype with the others, we found an age and examination year adjusted hazard rate ratio (HRR) of 1.73 (95% confidence interval (CI), 1.07-2.79), and an age, examination year, serum LDL and HDL cholesterol, and triglyceride concentration, systolic blood pressure and smoking adjusted HRR of 1.77 (95% CI, 1.05-2.77). Although serum tHcy concentration was not statistically significantly associated with acute coronary events (HRR for the highest third versus others 1.52, 95% CI, 0.93-2.49), subjects with both high serum tHcy and the COMT low activity genotype had an additionally increased adjusted risk of HRR 2.94 (95% CI 1.50-5.76) as compared with other men.This prospective cohort study suggests that the functional COMT Val158Met polymorphism is associated with increased risk of acute coronary events and it may interact with high serum tHcy levels.
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- 2007
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10. Catechol-o-methyltransferase gene polymorphism modifies the effect of coffee intake on incidence of acute coronary events.
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Pertti Happonen, Sari Voutilainen, Tomi-Pekka Tuomainen, and Jukka T Salonen
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Medicine ,Science - Abstract
BACKGROUND: The role of coffee intake as a risk factor for coronary heart disease (CHD) has been debated for decades. We examined whether the relationship between coffee intake and incidence of CHD events is dependent on the metabolism of circulating catecholamines, as determined by functional polymorphism of the catechol-O-methyltransferase (COMT) gene. METHODOLOGY/PRINCIPAL FINDINGS: In a cohort of 773 men who were 42 to 60 years old and free of symptomatic CHD at baseline in 1984-89, 78 participants experienced an acute coronary event during an average follow-up of 13 years. In logistic regression adjusting for age, smoking, family history of CHD, vitamin C deficiency, blood pressure, plasma cholesterol concentration, and diabetes, the odds ratio (90% confidence interval) comparing heavy coffee drinkers with the low activity COMT genotype with those with the high activity or heterozygotic genotypes was 3.2 (1.2-8.4). Urinary adrenaline excretion increased with increasing coffee intake, being over two-fold in heavy drinkers compared with nondrinkers (p = 0.008 for trend). CONCLUSIONS/SIGNIFICANCE: Heavy coffee consumption increases the incidence of acute coronary events in men with low but not high COMT activity. Further studies are required to determine to which extent circulating catecholamines mediate the relationship between coffee intake and CHD.
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- 2006
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11. Relevance of vitamin D receptor target genes for monitoring the vitamin D responsiveness of primary human cells
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Sabine Seuter, Tarja Nurmi, Antonio Neme, Carsten Carlberg, Jyrki K. Virtanen, Vanessa D. de Mello, Matti Uusitupa, Noora Saksa, Tomi-Pekka Tuomainen, Maja Vukić, and Terveystieteiden tiedekunta
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Male ,Glucose tolerance tests ,Parathyroid hormone ,lcsh:Medicine ,Calcitriol receptor ,Transcriptome ,chemistry.chemical_compound ,0302 clinical medicine ,Gene Regulatory Networks ,Vitamin D ,Receptor ,lcsh:Science ,0303 health sciences ,Multidisciplinary ,Vitamins ,Middle Aged ,3. Good health ,Genetic networks ,Multigene Family ,030220 oncology & carcinogenesis ,Female ,Network analysis ,Research Article ,Signal Transduction ,Vitamin ,Chromatin Immunoprecipitation ,medicine.medical_specialty ,DNA transcription ,Biology ,Real-Time Polymerase Chain Reaction ,vitamin D deficiency ,03 medical and health sciences ,In vivo ,Internal medicine ,medicine ,Vitamin D and neurology ,Humans ,030304 developmental biology ,lcsh:R ,Vitamin D Deficiency ,medicine.disease ,Endocrinology ,Gene Expression Regulation ,chemistry ,Dietary Supplements ,Leukocytes, Mononuclear ,Receptors, Calcitriol ,lcsh:Q ,Gene expression ,Biomarkers - Abstract
Article, Vitamin D3 has transcriptome- and genome-wide effects and activates, via the binding of its metabolite 1α,25-dihydroxyvitamin D3 to the transcription factor vitamin D receptor (VDR), several hundred target genes. Using samples from a 5-month vitamin D3 intervention study (VitDmet), we recently reported that the expression of 12 VDR target genes in peripheral blood mononuclear cells (PBMCs) as well as 12 biochemical and clinical parameters of the study participants are significantly triggered by vitamin D3. In this study, we performed a more focused selection of further 12 VDR target genes and demonstrated that changes of their mRNA expression in PBMCs of VitDmet subjects significantly correlate with alterations of 25-hydroxyvitamin D3 serum levels. Network and self-organizing map analysis of these datasets together with that of the other 24 parameters was followed by relevance calculations and identified changes in parathyroid hormone serum levels and the expression of the newly selected genes STS, BCL6, ITGAM, LRRC25, LPGAT1 and TREM1 as well as of the previously reported genes DUSP10 and CD14 as the most relevant parameters for describing vitamin D responsiveness in vivo. Moreover, parameter relevance ranking allowed the segregation of study subjects into high and low responders. Due to the long intervention period the vitamin D response was not too prominent on the level of transcriptional activation. Therefore, we performed in the separate VitDbol trial a short-term but high dose stimulation with a vitamin D3 bolus. In PBMCs of VitDbol subjects we observed direct transcriptional effects on the selected VDR target genes, such as an up to 2.1-fold increase already one day after supplementation onset. In conclusion, both long-term and short-term vitamin D3 supplementation studies allow monitoring the vitamin D responsiveness of human individuals and represent new types of human in vivo vitamin D3 investigations., publisher version, http://purl.org/eprint/status/PeerReviewed
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- 2015
12. Primary Vitamin D Target Genes Allow a Categorization of Possible Benefits of Vitamin D3 Supplementation
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Matti Uusitupa, Sabine Seuter, Vanessa D. de Mello, Carsten Carlberg, Tarja Nurmi, Jyrki K. Virtanen, Kari Pulkki, Sari Voutilainen, Tomi-Pekka Tuomainen, and Ursula Schwab
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Male ,Thrombomodulin ,Lipopolysaccharide Receptors ,Adipose tissue ,Parathyroid hormone ,Gene Expression ,Biochemistry ,Transcriptomes ,chemistry.chemical_compound ,0302 clinical medicine ,Endocrinology ,Molecular Cell Biology ,Cholecalciferol ,0303 health sciences ,Multidisciplinary ,biology ,Genomics ,Vitamins ,Middle Aged ,Lipids ,3. Good health ,Sterols ,Adipose Tissue ,030220 oncology & carcinogenesis ,Micronutrient Deficiencies ,Medicine ,Female ,Seasons ,medicine.symptom ,Research Article ,Signal Transduction ,Vitamin ,medicine.medical_specialty ,Inflammation ,vitamin D deficiency ,03 medical and health sciences ,Genome Analysis Tools ,Internal medicine ,medicine ,Vitamin D and neurology ,Genetics ,Humans ,Interleukin 6 ,Biology ,030304 developmental biology ,Nutrition ,Aged ,Endocrine Physiology ,Interleukin-6 ,medicine.disease ,Vitamin D Deficiency ,Hormones ,chemistry ,Gene Expression Regulation ,Dietary Supplements ,biology.protein ,Leukocytes, Mononuclear ,Nuclear Receptor Signaling - Abstract
Vitamin D deficiency has been associated with an increased risk of developing a number of diseases. Here we investigated samples from 71 pre-diabetic individuals of the VitDmet study, a 5-month high dose vitamin D3 intervention trial during Finnish winter, for their changes in serum 25-hydroxyvitamin D3 (25(OH)D3) concentrations and the expression of primary vitamin D target genes in peripheral blood mononuclear cells and adipose tissue. A negative correlation between serum concentrations of parathyroid hormone and 25(OH)D3 suggested an overall normal physiological vitamin D response among the participants. The genes CD14 and thrombomodulin (THBD) are up-regulated primary vitamin D targets and showed to be suitable gene expression markers for vitamin D signaling in both primary tissues. However, in a ranking of the samples concerning their expected response to vitamin D only the top half showed a positive correlation between the changes of CD14 or THBD mRNA and serum 25(OH)D3 concentrations. Interestingly, this categorization allows unmasking a negative correlation between changes in serum concentrations of 25(OH)D3 and the inflammation marker interleukin 6. We propose the genes CD14 and THBD as transcriptomic biomarkers, from which the effects of a vitamin D3 supplementation can be evaluated. These biomarkers allow the classification of subjects into those, who might benefit from a vitamin D3 supplementation, and others who do not.
- Published
- 2013
13. Serum long-chain n-3 polyunsaturated fatty acids, mercury, and risk of sudden cardiac death in men: a prospective population-based study
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Sari Voutilainen, Jaakko Mursu, Tomi-Pekka Tuomainen, Jyrki K. Virtanen, and Jari A. Laukkanen
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Male ,Epidemiology ,Physiology ,Arrhythmias ,030204 cardiovascular system & hematology ,Cardiovascular ,Biochemistry ,Sudden cardiac death ,0302 clinical medicine ,Prospective Studies ,030212 general & internal medicine ,2. Zero hunger ,chemistry.chemical_classification ,education.field_of_study ,Multidisciplinary ,Fatty Acids ,Hazard ratio ,Middle Aged ,Lipids ,Eicosapentaenoic acid ,3. Good health ,Eicosapentaenoic Acid ,Docosahexaenoic acid ,Fatty Acids, Unsaturated ,Population study ,Medicine ,Public Health ,Environmental Health ,Research Article ,Polyunsaturated fatty acid ,Adult ,Risk ,Docosahexaenoic Acids ,Clinical Research Design ,Science ,Population ,chemistry.chemical_element ,Biology ,Environmental Epidemiology ,03 medical and health sciences ,medicine ,Humans ,education ,Cardiovascular Disease Epidemiology ,Nutrition ,Proportional Hazards Models ,Models, Statistical ,Mercury ,medicine.disease ,Mercury (element) ,Biomarker Epidemiology ,Death, Sudden, Cardiac ,chemistry ,Hair - Abstract
ObjectivesFish consumption has been associated with reduced risk of cardiovascular diseases (CVD), especially sudden cardiac death (SCD). Fish is the major source of long-chain n-3 polyunsaturated fatty acids (PUFA) eicosapentaenoic acid and docosahexaenoic acid. It is also a major source of methylmercury, which was associated with increased risk of CVD in this study population. Impact of interaction between long-chain n-3 PUFA and methylmercury on the SCD risk is unknown.MethodsA total of 1857 men from the prospective, population-based Kuopio Ischaemic Heart Disease Risk Factor study, aged 42-60 years and free of CVD at baseline in 1984-1989, were studied. Serum long-chain n-3 PUFA was used as the marker for long-chain n-3 PUFA intake and hair mercury as the marker for mercury exposure.ResultsDuring the mean follow-up of 20.1 years, 91 SCD events occurred. In the multivariate Cox proportional hazards regression models, serum long-chain n-3 PUFA concentration was not associated with the risk of SCD until hair mercury was accounted for; then the hazard ratio (HR) in the highest vs. lowest tertile was 0.54 [95% confidence interval (CI) 0.32 to 0.91, p for trend = 0.046]. When the analyses were stratified by hair mercury content, among those with lower hair mercury, each 0.5 percentage unit increase in the serum long-chain n-3 PUFA was associated with HR of 0.77 (95% CI 0.64 to 0.93), whereas no association was seen among those with higher hair mercury (p for interaction = 0.01). Among the individual long-chain n-3 PUFA, docosahexaenoic acid was most strongly associated with the risk.ConclusionHigh exposure to mercury may reduce the benefits of long-chain n-3 PUFA on SCD.
- Published
- 2012
14. Functional COMT Val158Met polymorphism, risk of acute coronary events and serum homocysteine: the Kuopio ischaemic heart disease risk factor study
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Sari Voutilainen, George A. Kaplan, Jari Tiihonen, Jukka T. Salonen, Mary Jane Mosher, Iris Erlund, Jaakko Mursu, Kari E. North, Pertti Happonen, Tomi-Pekka Tuomainen, Jyrki K. Virtanen, Georg Alfthan, Jussi Kauhanen, and Maarit Jaana Korhonen
- Subjects
Male ,Homocysteine ,Myocardial Ischemia ,lcsh:Medicine ,Coronary Disease ,Kaplan-Meier Estimate ,030204 cardiovascular system & hematology ,Cohort Studies ,chemistry.chemical_compound ,0302 clinical medicine ,Risk Factors ,Genotype ,Blood plasma ,Prospective Studies ,lcsh:Science ,Prospective cohort study ,Genetics and Genomics/Genetics of Disease ,Genetics and Genomics/Medical Genetics ,0303 health sciences ,education.field_of_study ,Multidisciplinary ,Hazard ratio ,Middle Aged ,3. Good health ,Cardiovascular Disorders/Myocardial Infarction ,Research Article ,Adult ,medicine.medical_specialty ,Population ,Public Health and Epidemiology ,Catechol O-Methyltransferase ,03 medical and health sciences ,Folic Acid ,Internal medicine ,medicine ,Humans ,Genetic Predisposition to Disease ,education ,030304 developmental biology ,Nutrition ,Polymorphism, Genetic ,Cholesterol ,business.industry ,lcsh:R ,Blood pressure ,Endocrinology ,chemistry ,lcsh:Q ,business - Abstract
Background The role of circulating levels of total homocysteine tHcy in the development of coronary heart disease (CHD) is still under debate. One reason for conflicting results between previous studies on homocysteine and heart diseases could be consequence of different interactions between homocysteine and genes in different study populations. Many genetic factors play a role in folate-homocysteine metabolism, like functional polymorphism (Val108Met) in the Catechol-O-methyltransferase (COMT) gene. Methodology and Findings Our aim was to examine the role of COMT Val158Met polymorphism and interaction of this polymorphism with serum tHcy and folate concentration on the risk of acute coronary and events in middle-aged men from eastern Finland. A population-based prospective cohort of 792 men aged 46–64 years was examined as part of the Kuopio Ischaemic Heart Disease Risk Factor Study. During an average follow-up of 9.3 years, there were 69 acute coronary events in men with no previous history of CHD. When comparing the COMT low activity genotype with the others, we found an age and examination year adjusted hazard rate ratio (HRR) of 1.73 (95% confidence interval (CI), 1.07–2.79), and an age, examination year, serum LDL and HDL cholesterol, and triglyceride concentration, systolic blood pressure and smoking adjusted HRR of 1.77 (95% CI, 1.05–2.77). Although serum tHcy concentration was not statistically significantly associated with acute coronary events (HRR for the highest third versus others 1.52, 95% CI, 0.93–2.49), subjects with both high serum tHcy and the COMT low activity genotype had an additionally increased adjusted risk of HRR 2.94 (95% CI 1.50–5.76) as compared with other men. Conclusions This prospective cohort study suggests that the functional COMT Val158Met polymorphism is associated with increased risk of acute coronary events and it may interact with high serum tHcy levels.
- Published
- 2006
15. Catechol-o-methyltransferase gene polymorphism modifies the effect of coffee intake on incidence of acute coronary events
- Author
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Tomi-Pekka Tuomainen, Sari Voutilainen, Jukka T. Salonen, and Pertti Happonen
- Subjects
Male ,Myocardial Infarction ,lcsh:Medicine ,Coronary Disease ,030204 cardiovascular system & hematology ,Coffee ,Cohort Studies ,Catecholamines ,0302 clinical medicine ,Risk Factors ,Prospective Studies ,030212 general & internal medicine ,Myocardial infarction ,Prospective cohort study ,lcsh:Science ,Finland ,Multidisciplinary ,Incidence (epidemiology) ,Middle Aged ,3. Good health ,Cohort ,Cardiovascular Disorders/Myocardial Infarction ,Research Article ,Adult ,medicine.medical_specialty ,Epinephrine ,Genotype ,Catechol O-Methyltransferase ,03 medical and health sciences ,Caffeine ,Genetics and Genomics/Epigenetics ,Internal medicine ,Diabetes mellitus ,medicine ,Humans ,Risk factor ,Aged ,DNA Primers ,Nutrition ,Polymorphism, Genetic ,Catechol-O-methyl transferase ,Base Sequence ,business.industry ,lcsh:R ,Odds ratio ,medicine.disease ,Endocrinology ,lcsh:Q ,Public Health and Epidemiology/Epidemiology ,business - Abstract
Background The role of coffee intake as a risk factor for coronary heart disease (CHD) has been debated for decades. We examined whether the relationship between coffee intake and incidence of CHD events is dependent on the metabolism of circulating catecholamines, as determined by functional polymorphism of the catechol-O-methyltransferase (COMT) gene. Methodology/Principal Findings In a cohort of 773 men who were 42 to 60 years old and free of symptomatic CHD at baseline in 1984–89, 78 participants experienced an acute coronary event during an average follow-up of 13 years. In logistic regression adjusting for age, smoking, family history of CHD, vitamin C deficiency, blood pressure, plasma cholesterol concentration, and diabetes, the odds ratio (90% confidence interval) comparing heavy coffee drinkers with the low activity COMT genotype with those with the high activity or heterozygotic genotypes was 3.2 (1.2–8.4). Urinary adrenaline excretion increased with increasing coffee intake, being over two-fold in heavy drinkers compared with nondrinkers (p = 0.008 for trend). Conclusions/Significance Heavy coffee consumption increases the incidence of acute coronary events in men with low but not high COMT activity. Further studies are required to determine to which extent circulating catecholamines mediate the relationship between coffee intake and CHD.
- Published
- 2006
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