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1. Large-scale sequencing identifies multiple genes and rare variants associated with Crohn’s disease susceptibility

Author

Sazonovs, A., Stevens, C.R., Venkataraman, G.R., Yuan, K., Avila, B., Abreu, M.T., Ahmad, T., Allez, M., Ananthakrishnan, A.N., Atzmon, G., Baras, A., Barrett, J.C., Barzilai, N., Beaugerie, L., Beecham, A., Bernstein, C.N., Bitton, A., Bokemeyer, B., Chan, A., Chung, D., Cleynen, I., Cosnes, J., Cutler, D.J., Daly, A., Damas, O.M., Datta, L.W., Dawany, N., Devoto, M., Dodge, S., Ellinghaus, E., Fachal, L., Farkkila, M., Faubion, W., Ferreira, M., Franchimont, D., Gabriel, S.B., Ge, T., Georges, M., Gettler, K., Giri, M., Glaser, B., Goerg, S., Goyette, P., Graham, D., Hamalainen, E., Haritunians, T., Heap, G.A., Hiltunen, M., Hoeppner, M., Horowitz, J.E., Irving, P., Iyer, V., Jalas, C., Kelsen, J., Khalili, H., Kirschner, B.S., Kontula, K., Koskela, J.T., Kugathasan, S., Kupcinskas, J., Lamb, C.A., Laudes, M., Levesque, C., Levine, A.P., Lewis, J.D., Liefferinckx, C., Loescher, B.S., Louis, E., Mansfield, J., May, S., McCauley, J.L., Mengesha, E., Mni, M., Moayyedi, P., Moran, C.J., Newberry, R.D., O'Charoen, S., Okou, D.T., Oldenburg, B., Ostrer, H., Palotie, A., Paquette, J., Pekow, J., Peter, I., Pierik, M.J., Ponsioen, C.Y., Pontikos, N., Prescott, N., Pulver, A.E., Rahmouni, S., Rice, D.L., Saavalainen, P., Sands, B., Sartor, R.B., Schiff, E.R., Schreiber, S., Schumm, L.P., Segal, A.W., Seksik, P., Shawky, R., Sheikh, S.Z., Silverberg, M.S., Simmons, A., Skeiceviciene, J., Sokol, H., Solomonson, M., Somineni, H., Sun, D., Targan, S., Turner, D., Uhlig, H.H., Meulen, A.E. van der, Vermeire, S., Verstockt, S., Voskuil, M.D., Winter, H.S., Young, J., Duerr, R.H., Franke, A., Brant, S.R., Cho, J., Weersma, R.K., Parkes, M., Xavier, R.J., Rivas, M.A., Rioux, J.D., McGovern, D.P.B., Huang, H.L., Anderson, C.A., Daly, M.J., Belgium IBD Consortium, Cedars-Sinai IBD, International IBD Genetics Consortium, NIDDK IBD Genetics Consortium, NIHR IBD BioResource, Regeneron Genetics Center, SHARE Consortium, SPARC IBD Network, UK IBD Genetics Consortium, Interne Geneeskunde, MUMC+: MA Maag Darm Lever (9), RS: NUTRIM - R2 - Liver and digestive health, Gastroenterology and Hepatology, AGEM - Amsterdam Gastroenterology Endocrinology Metabolism, and Groningen Institute for Gastro Intestinal Genetics and Immunology (3GI)

Subjects
Crohn Disease, Genetics, Humans, Genetic Predisposition to Disease, Polymorphism, Single Nucleotide, Article, Genome-Wide Association Study
Abstract

Genome-wide association studies (GWASs) have identified hundreds of loci associated with Crohn's disease (CD). However, as with all complex diseases, robust identification of the genes dysregulated by noncoding variants typically driving GWAS discoveries has been challenging. Here, to complement GWASs and better define actionable biological targets, we analyzed sequence data from more than 30,000 patients with CD and 80,000 population controls. We directly implicate ten genes in general onset CD for the first time to our knowledge via association to coding variation, four of which lie within established CD GWAS loci. In nine instances, a single coding variant is significantly associated, and in the tenth, ATG4C, we see additionally a significantly increased burden of very rare coding variants in CD cases. In addition to reiterating the central role of innate and adaptive immune cells as well as autophagy in CD pathogenesis, these newly associated genes highlight the emerging role of mesenchymal cells in the development and maintenance of intestinal inflammation.Large-scale sequence-based analyses identify novel risk variants and susceptibility genes for Crohn's disease, and implicate mesenchymal cell-mediated intestinal homeostasis in disease etiology.

Published
2022

5. Effect of four classes of antihypertensive drugs on cardiac repolarization heterogeneity:a double-blind rotational study

Author

Sánez Tähtisalo, H. (Heini), Hiltunen, T. P. (Timo P.), Kenttä, T. (Tuomas), Junttila, J. (Juhani), Oikarinen, L. (Lasse), Virolainen, J. (Juha), Kontula, K. K. (Kimmo K.), Porthan, K. (Kimmo), Sánez Tähtisalo, H. (Heini), Hiltunen, T. P. (Timo P.), Kenttä, T. (Tuomas), Junttila, J. (Juhani), Oikarinen, L. (Lasse), Virolainen, J. (Juha), Kontula, K. K. (Kimmo K.), and Porthan, K. (Kimmo)

Abstract

Background: T-wave area dispersion (TW-Ad) is a novel electrocardiographic (ECG) repolarization marker associated with sudden cardiac death. However, limited data is available on the clinical correlates of TW-Ad. In addition, there are no previous studies on cardiovascular drug effects on TW-Ad. In this study, we examined the relation between TW-Ad and left ventricular mass. We also studied the effects of four commonly used antihypertensive drugs on TW-Ad. Methods: A total of 242 moderately hypertensive males (age, 51±6 years; office systolic/diastolic blood pressure during placebo, 153±14/100±8 mmHg), participating in the GENRES study, were included. Left ventricular mass index was determined by transthoracic echocardiography. Antihypertensive four-week monotherapies (a diuretic, a beta-blocker, a calcium channel blocker, and an angiotensin receptor antagonist) were administered in a randomized rotational fashion. Four-week placebo periods preceded all monotherapies. The average value of measurements (over 1700 ECGs in total) from all available placebo periods served as a reference to which measurements during each drug period were compared. Results: Lower, i.e. risk-associated TW-Ad values correlated with a higher left ventricular mass index (r = −0.14, p = 0.03). Bisoprolol, a beta-blocker, elicited a positive change in TW-Ad (p = 1.9×10−5), but the three other drugs had no significant effect on TW-Ad. Conclusions: Our results show that TW-Ad is correlated with left ventricular mass and can be modified favorably by the use of bisoprolol, although demonstration of any effects on clinical endpoints requires long-term prospective studies. Altogether, our results suggest that TW-Ad is an ECG repolarization measure of left ventricular arrhythmogenic substrate.

Published
2020

6. CARD15/NOD2 gene variants are associated with familially occurring and complicated forms of Crohn's disease. (Inflammatory Bowel Disease)

Author

Helio, T., Halme, L., Lappalainen, M., Fodstad, H., Paavola-Sakki, P., Turunen, U., Farkkila, M., Krusius, T., and Kontula, K.

Subjects
Ulcerative colitis -- Genetic aspects, Genes -- Abnormalities -- Genetic aspects, Heredity -- Abnormalities -- Genetic aspects, Crohn's disease -- Genetic aspects, Health, Genetic aspects, Abnormalities
Abstract

Background: Variants of the caspase activating recruitment domain 15/nucleotide oligomerisatian domain 2 (CARD15/NOD2) gene have been associated with susceptibility to Crohn's disease (CD). Aim: Our aim was to evaluate the [...]

Published
2003

21. Insights into the genetic epidemiology of Crohn's and rare diseases in the Ashkenazi Jewish population.

Author

Williams, SM, Rivas, MA, Avila, BE, Koskela, J, Huang, H, Stevens, C, Pirinen, M, Haritunians, T, Neale, BM, Kurki, M, Ganna, A, Graham, D, Glaser, B, Peter, I, Atzmon, G, Barzilai, N, Levine, AP, Schiff, E, Pontikos, N, Weisburd, B, Lek, M, Karczewski, KJ, Bloom, J, Minikel, EV, Petersen, B-S, Beaugerie, L, Seksik, P, Cosnes, J, Schreiber, S, Bokemeyer, B, Bethge, J, International IBD Genetics Consortium, NIDDK IBD Genetics Consortium, T2D-GENES Consortium, Heap, G, Ahmad, T, Plagnol, V, Segal, AW, Targan, S, Turner, D, Saavalainen, P, Farkkila, M, Kontula, K, Palotie, A, Brant, SR, Duerr, RH, Silverberg, MS, Rioux, JD, Weersma, RK, Franke, A, Jostins, L, Anderson, CA, Barrett, JC, MacArthur, DG, Jalas, C, Sokol, H, Xavier, RJ, Pulver, A, Cho, JH, McGovern, DPB, Daly, MJ, Williams, SM, Rivas, MA, Avila, BE, Koskela, J, Huang, H, Stevens, C, Pirinen, M, Haritunians, T, Neale, BM, Kurki, M, Ganna, A, Graham, D, Glaser, B, Peter, I, Atzmon, G, Barzilai, N, Levine, AP, Schiff, E, Pontikos, N, Weisburd, B, Lek, M, Karczewski, KJ, Bloom, J, Minikel, EV, Petersen, B-S, Beaugerie, L, Seksik, P, Cosnes, J, Schreiber, S, Bokemeyer, B, Bethge, J, International IBD Genetics Consortium, NIDDK IBD Genetics Consortium, T2D-GENES Consortium, Heap, G, Ahmad, T, Plagnol, V, Segal, AW, Targan, S, Turner, D, Saavalainen, P, Farkkila, M, Kontula, K, Palotie, A, Brant, SR, Duerr, RH, Silverberg, MS, Rioux, JD, Weersma, RK, Franke, A, Jostins, L, Anderson, CA, Barrett, JC, MacArthur, DG, Jalas, C, Sokol, H, Xavier, RJ, Pulver, A, Cho, JH, McGovern, DPB, and Daly, MJ

Abstract

As part of a broader collaborative network of exome sequencing studies, we developed a jointly called data set of 5,685 Ashkenazi Jewish exomes. We make publicly available a resource of site and allele frequencies, which should serve as a reference for medical genetics in the Ashkenazim (hosted in part at https://ibd.broadinstitute.org, also available in gnomAD at http://gnomad.broadinstitute.org). We estimate that 34% of protein-coding alleles present in the Ashkenazi Jewish population at frequencies greater than 0.2% are significantly more frequent (mean 15-fold) than their maximum frequency observed in other reference populations. Arising via a well-described founder effect approximately 30 generations ago, this catalog of enriched alleles can contribute to differences in genetic risk and overall prevalence of diseases between populations. As validation we document 148 AJ enriched protein-altering alleles that overlap with "pathogenic" ClinVar alleles (table available at https://github.com/macarthur-lab/clinvar/blob/master/output/clinvar.tsv), including those that account for 10-100 fold differences in prevalence between AJ and non-AJ populations of some rare diseases, especially recessive conditions, including Gaucher disease (GBA, p.Asn409Ser, 8-fold enrichment); Canavan disease (ASPA, p.Glu285Ala, 12-fold enrichment); and Tay-Sachs disease (HEXA, c.1421+1G>C, 27-fold enrichment; p.Tyr427IlefsTer5, 12-fold enrichment). We next sought to use this catalog, of well-established relevance to Mendelian disease, to explore Crohn's disease, a common disease with an estimated two to four-fold excess prevalence in AJ. We specifically attempt to evaluate whether strong acting rare alleles, particularly protein-truncating or otherwise large effect-size alleles, enriched by the same founder-effect, contribute excess genetic risk to Crohn's disease in AJ, and find that ten rare genetic risk factors in NOD2 and LRRK2 are enriched in AJ (p < 0.005), including several novel con

Published
2018

22. The genetics underlying idiopathic ventricular fibrillation: A special role for catecholaminergic polymorphic ventricular tachycardia?

Author

Leinonen, J, Crotti, L, Djupsjöbacka, A, Castelletti, S, Junna, N, Ghidoni, A, Tuiskula, A, Spazzolini, C, Dagradi, F, Viitasalo, M, Kontula, K, Kotta, M, Widén, E, Swan, H, Schwartz, P, Leinonen, JT, Tuiskula, AM, Kotta, MC, Schwartz, PJ., Leinonen, J, Crotti, L, Djupsjöbacka, A, Castelletti, S, Junna, N, Ghidoni, A, Tuiskula, A, Spazzolini, C, Dagradi, F, Viitasalo, M, Kontula, K, Kotta, M, Widén, E, Swan, H, Schwartz, P, Leinonen, JT, Tuiskula, AM, Kotta, MC, and Schwartz, PJ.

Abstract

Background: Ventricular fibrillation (VF) is a major cause of sudden cardiac death. In some cases clinical investigations fail to identify the underlying cause and the event is classified as idiopathic (IVF). Sincemutations in arrhythmia-associated genes frequently determine arrhythmia susceptibility, screening for diseasepredisposing variants could improve IVF diagnostics. Methods and results: The study included 76 Finnish and Italian patients with a mean age of 31.2 years at the time of the VF event, collected between the years 1996–2016 and diagnosed with idiopathic, out-of-hospital VF. Using whole-exome sequencing (WES) and next-generation sequencing (NGS) approaches, we aimed to identify genetic variants potentially contributing to the life-threatening arrhythmias of these patients. Combining the results from the two study populations, we identified pathogenic or likely pathogenic variants residing in the RYR2, CACNA1C and DSP genes in 7 patients (9%).Most of them(5, 71%)were found in the RYR2 gene, associated with catecholaminergic polymorphic ventricular tachycardia (CPVT). These genetic findings prompted clinical investigations leading to disease reclassification. Additionally, in 9 patients (11.8%) we detected 10 novel or extremely rare (MAF b 0.005%) variants that were classified as of unknown significance (VUS). Conclusion: The results of our study suggest that a subset of patients originally diagnosed with IVFmay carry clinically-relevant variants in genes associated with cardiac channelopathies and cardiomyopathies. Although misclassification of other cardiac channelopathies as IVF appears rare, our findings indicate that the possibility of CPVT as the underlying disease entity should be carefully evaluated in IVF patients

Published
2018

24. Genome-wide association study of primary sclerosing cholangitis identifies new risk loci and quantifies the genetic relationship with inflammatory bowel disease

Author

Ji, S, Juran, B, Mucha, S, Folseraas, T, Jostins, L, Melum, E, Kumasaka, N, Atkinson, E, Schlicht, E, Liu, J, Shah, T, Gutierrez Achury, J, Boberg, K, Bergquist, A, Vermeire, S, Eksteen, B, Durie, P, Farkkila, M, Müller, T, Schramm, C, Sterneck, M, Weismüller, T, Gotthardt, D, Ellinghaus, D, Braun, F, Teufel, A, Laudes, M, Lieb, W, Jacobs, G, Beuers, U, Weersma, R, Wijmenga, C, Marschall, H, Milkiewicz, P, Pares, A, Kontula, K, Chazouillères, O, Invernizzi, P, Goode, E, Spiess, K, Moore, C, Sambrook, J, Ouwehand, W, Roberts, D, Danesh, J, Floreani, A, Gulamhusein, A, Eaton, J, Schreiber, S, Coltescu, C, Bowlus, C, Luketic, V, Odin, J, Chopra, K, Kowdley, K, Chalasani, N, Manns, M, Srivastava, B, Mells, G, Sandford, R, Alexander, G, Gaffney, D, Chapman, R, Hirschfield, G, de Andrade, M, Rushbrook, S, Franke, A, Karlsen, T, Lazaridis, K, Anderson, C, INVERNIZZI, PIETRO, Anderson, C., Ji, S, Juran, B, Mucha, S, Folseraas, T, Jostins, L, Melum, E, Kumasaka, N, Atkinson, E, Schlicht, E, Liu, J, Shah, T, Gutierrez Achury, J, Boberg, K, Bergquist, A, Vermeire, S, Eksteen, B, Durie, P, Farkkila, M, Müller, T, Schramm, C, Sterneck, M, Weismüller, T, Gotthardt, D, Ellinghaus, D, Braun, F, Teufel, A, Laudes, M, Lieb, W, Jacobs, G, Beuers, U, Weersma, R, Wijmenga, C, Marschall, H, Milkiewicz, P, Pares, A, Kontula, K, Chazouillères, O, Invernizzi, P, Goode, E, Spiess, K, Moore, C, Sambrook, J, Ouwehand, W, Roberts, D, Danesh, J, Floreani, A, Gulamhusein, A, Eaton, J, Schreiber, S, Coltescu, C, Bowlus, C, Luketic, V, Odin, J, Chopra, K, Kowdley, K, Chalasani, N, Manns, M, Srivastava, B, Mells, G, Sandford, R, Alexander, G, Gaffney, D, Chapman, R, Hirschfield, G, de Andrade, M, Rushbrook, S, Franke, A, Karlsen, T, Lazaridis, K, Anderson, C, INVERNIZZI, PIETRO, and Anderson, C.

Abstract

Primary sclerosing cholangitis (PSC) is a rare progressive disorder leading to bile duct destruction; ∼75% of patients have comorbid inflammatory bowel disease (IBD). We undertook the largest genome-wide association study of PSC (4,796 cases and 19,955 population controls) and identified four new genome-wide significant loci. The most associated SNP at one locus affects splicing and expression of UBASH3A, with the protective allele (C) predicted to cause nonstop-mediated mRNA decay and lower expression of UBASH3A. Further analyses based on common variants suggested that the genome-wide genetic correlation (rG) between PSC and ulcerative colitis (UC) (rG = 0.29) was significantly greater than that between PSC and Crohn's disease (CD) (rG = 0.04) (P = 2.55 × 10-15). UC and CD were genetically more similar to each other (rG = 0.56) than either was to PSC (P < 1.0 × 10-15). Our study represents a substantial advance in understanding of the genetics of PSC

Published
2017

26. Genome-wide association study identifies CAMKID variants involved in blood pressure response to losartan: the SOPHIA study

Author

FRAU F, ZANINELLO R, SALVI E, ORTU MF, BRAGA D, VELAYUTHAM D, ARGIOLAS G, FRESU G, TROFFA C, BULLA E, BULLA P, PITZOI S, PIRAS DA, GLORIOSO V, CHITTANI M, BERNINI G, BARDINI M, FALLO F, MALATINO L, STANCANELLI B, REGOLISTI G, FERRI C, DESIDERI G, SCIOLI GA, GALLETTI F, SCIACQUA A, PERTICONE F, DEGLI ESPOSTI E, STURANI A, SEMPLICINI A, VEGLIO F, MULATERO P, WILLIAMS TA, LANZANI C, HILTUNEN TP, KONTULA K, BOERWINKLE E, TURNER ST, BARLASSINA C, CUSI D, GLORIOSO N., MANUNTA , PAOLO, Frau, F, Zaninello, R, Salvi, E, Ortu, Mf, Braga, D, Velayutham, D, Argiolas, G, Fresu, G, Troffa, C, Bulla, E, Bulla, P, Pitzoi, S, Piras, Da, Glorioso, V, Chittani, M, Bernini, G, Bardini, M, Fallo, F, Malatino, L, Stancanelli, B, Regolisti, G, Ferri, C, Desideri, G, Scioli, Ga, Galletti, F, Sciacqua, A, Perticone, F, DEGLI ESPOSTI, E, Sturani, A, Semplicini, A, Veglio, F, Mulatero, P, Williams, Ta, Lanzani, C, Hiltunen, Tp, Kontula, K, Boerwinkle, E, Turner, St, Manunta, Paolo, Barlassina, C, Cusi, D, and Glorioso, N.

Published
2014

28. Genetic modifiers for the long-QT syndrome: How important Is the role of variants in the 3' untranslated region of KCNQ1?

Author

Crotti, L., Lahtinen, A.M., Spazzolini, C., Mastantuono, E., Monti, M.C., Morassutto, C., Parati, G., Heradien, M., Goosen, A., Lichtner, P., Meitinger, T., Brink, P.A., Kontula, K., Swan, H., and Schwartz, P.J.

Subjects
Kcnq1 Potassium Channel, Arrhythmias, Genes, Modifier, Long-qt Syndrome, Untranslated Region
Abstract

BACKGROUND: Long-QT syndrome is an inherited cardiac channelopathy characterized by delayed repolarization, risk of life-threatening arrhythmia, and significant clinical variability even within families. Three single-nucleotide polymorphisms (SNPs) in the 3' untranslated region of KCNQ1 were recently suggested to be associated with suppressed gene expression and hence decreased disease severity when located on the same haplotype with a disease-causing KCNQ1 mutation. We sought to replicate this finding in a larger and a genetically more homogeneous population of KCNQ1 mutation carriers. METHODS AND RESULTS: The 3 SNPs (rs2519184, rs8234, and rs10798) were genotyped in a total of 747 KCNQ1 mutation carriers with A341V, G589D, or IVS7-2A>G mutation. The SNP haplotypes were assigned based on family trees. The SNP allele frequencies and clinical severity differed between the 3 mutation groups. The different SNP haplotypes were neither associated with heart rate-corrected QT interval duration (QTc) nor cardiac events in any of the 3 mutation groups. When the mutation groups were combined, the derived SNP haplotype of rs8234 and rs10798 located on the same haplotype with the mutation was associated with a shorter QTc interval (P

Published
2016

30. Response by Crotti et al to Letter Regarding Article, 'genetic Modifiers for the Long-QT Syndrome: How Important Is the Role of Variants in the 3′ Untranslated Region of KCNQ1?'

Author

Crotti, L, Lahtinen, A, Spazzolini, C, Mastantuono, E, Monti, M, Morassutto, C, Parati, G, Heradien, M, Goosen, A, Lichtner, P, Meitinger, T, Brink, P, Kontula, K, Swan, H, Schwartz, P, Schwartz, PJ., Crotti, L, Lahtinen, A, Spazzolini, C, Mastantuono, E, Monti, M, Morassutto, C, Parati, G, Heradien, M, Goosen, A, Lichtner, P, Meitinger, T, Brink, P, Kontula, K, Swan, H, Schwartz, P, and Schwartz, PJ.

Published
2016

31. Genetic Modifiers for the Long-QT Syndrome: How Important Is the Role of Variants in the 3′ Untranslated Region of KCNQ1?

Author

Crotti, L, Lahtinen, A, Spazzolini, C, Mastantuono, E, Monti, M, Morassutto, C, Parati, G, Heradien, M, Goosen, A, Lichtner, P, Meitinger, T, Brink, P, Kontula, K, Swan, H, Schwartz, P, Schwartz, P., Crotti, L, Lahtinen, A, Spazzolini, C, Mastantuono, E, Monti, M, Morassutto, C, Parati, G, Heradien, M, Goosen, A, Lichtner, P, Meitinger, T, Brink, P, Kontula, K, Swan, H, Schwartz, P, and Schwartz, P.

Abstract

Background-Long-QT syndrome is an inherited cardiac channelopathy characterized by delayed repolarization, risk of life-threatening arrhythmia, and significant clinical variability even within families. Three single-nucleotide polymorphisms (SNPs) in the 3′ untranslated region of KCNQ1 were recently suggested to be associated with suppressed gene expression and hence decreased disease severity when located on the same haplotype with a disease-causing KCNQ1 mutation. We sought to replicate this finding in a larger and a genetically more homogeneous population of KCNQ1 mutation carriers. Methods and Results-The 3 SNPs (rs2519184, rs8234, and rs10798) were genotyped in a total of 747 KCNQ1 mutation carriers with A341V, G589D, or IVS7-2A>G mutation. The SNP haplotypes were assigned based on family trees. The SNP allele frequencies and clinical severity differed between the 3 mutation groups. The different SNP haplotypes were neither associated with heart rate-corrected QT interval duration (QTc) nor cardiac events in any of the 3 mutation groups. When the mutation groups were combined, the derived SNP haplotype of rs8234 and rs10798 located on the same haplotype with the mutation was associated with a shorter QTc interval (P<0.05) and a reduced occurrence of cardiac events (P<0.01), consistent with the previous finding. However, when the population-specific mutation was controlled for, both associations were no longer evident. Conclusions-3′ Untranslated region SNPs are not acting as genetic modifiers in a large group of LQT1 patients. The confounding effect of merging a genetically and clinically heterogeneous group of patients needs to be taken into account when studying disease modifiers.

Published
2016

33. Genome-wide association study identifies CAMKID variants involved in blood pressure response to losartan: the SOPHIA study

Author

Frau, F1, Zaninello, R, Salvi, E, Ortu, Mf, Braga, D, Velayutham, D, Argiolas, G, Fresu, G, Troffa, C, Bulla, E, Bulla, P, Pitzoi, S, Piras, Da, Glorioso, V, Chittani, M, Bernini, Giampaolo, Bardini, M, Fallo, F, Malatino, L, Stancanelli, B, Regolisti, G, Ferri, C, Desideri, G, Scioli, Ga, Galletti, F, Sciacqua, A, Perticone, F, Degli Esposti, E, Sturani, A, Semplicini, A, Veglio, F, Mulatero, P, Williams, Ta, Lanzani, C, Hiltunen, Tp, Kontula, K, Boerwinkle, E, Turner, St, Manunta, P, Barlassina, C, Cusi, D, and Glorioso, N.

Published
2014

35. Genetic association study of QT interval highlights role for calcium signaling pathways in myocardial repolarization

Author

Arking, D, Pulit, S, Crotti, L, van der Harst, P, Munroe, P, Koopmann, T, Sotoodehnia, N, Rossin, E, Morley, M, Wang, X, Johnson, A, Lundby, A, Gudbjartsson, D, Noseworthy, P, Eijgelsheim, M, Bradford, Y, Tarasov, K, Dörr, M, Müller-Nurasyid, M, Lahtinen, A, Nolte, I, Smith, A, Bis, J, Isaacs, A, Newhouse, S, Evans, D, Post, W, Waggott, D, Lyytikäinen, L, Hicks, A, Eisele, L, Ellinghaus, D, Hayward, C, Navarro, P, Ulivi, S, Tanaka, T, Tester, D, Chatel, S, Gustafsson, S, Kumari, M, Morris, R, Naluai, A, Padmanabhan, S, Kluttig, A, Strohmer, B, Panayiotou, A, Torres, M, Knoflach, M, Hubacek, J, Slowikowski, K, Raychaudhuri, S, Kumar, R, Harris, T, Launer, L, Shuldiner, A, Alonso, A, Bader, J, Ehret, G, Huang, H, Kao, W, Strait, J, Macfarlane, P, Brown, M, Caulfield, M, Samani, N, Kronenberg, F, Willeit, J, Smith, J, Greiser, K, Meyer Zu Schwabedissen, H, Werdan, K, Carella, M, Zelante, L, Heckbert, S, Psaty, B, Rotter, J, Kolcic, I, Polašek, O, Wright, A, Griffin, M, Daly, M, Arnar, D, Hólm, H, Thorsteinsdottir, U, Denny, J, Roden, D, Zuvich, R, Emilsson, V, Plump, A, Larson, M, O'Donnell, C, Yin, X, Bobbo, M, D'Adamo, A, Iorio, A, Sinagra, G, Carracedo, A, Cummings, S, Nalls, M, Jula, A, Kontula, K, Marjamaa, A, Oikarinen, L, Perola, M, Porthan, K, Erbel, R, Hoffmann, P, Jöckel, K, Kälsch, H, Nöthen, M, den Hoed, M, Loos, R, Thelle, D, Gieger, C, Meitinger, T, Perz, S, Peters, A, Prucha, H, Sinner, M, Waldenberger, M, de Boer, R, Franke, L, van der Vleuten, P, Beckmann, B, Martens, E, Bardai, A, Hofman, N, Wilde, A, Behr, E, Dalageorgou, C, Giudicessi, J, Medeiros-Domingo, A, Kyndt, F, Probst, V, Ghidoni, A, Insolia, R, Hamilton, R, Scherer, S, Brandimarto, J, Margulies, K, Moravec, C, Greco, M, Fuchsberger, C, O'Connell, J, Lee, W, Watt, G, Campbell, H, Wild, S, El Mokhtari, N, Frey, N, Asselbergs, F, Mateo Leach, I, Navis, G, van den Berg, M, van Veldhuisen, D, Kellis, M, Krijthe, B, Franco, O, Hofman, A, Kors, J, Uitterlinden, A, Witteman, J, Kedenko, L, Lamina, C, Oostra, B, Abecasis, G, Lakatta, E, Mulas, A, Orrú, M, Schlessinger, D, Uda, M, Markus, M, Völker, U, Snieder, H, Spector, T, Arnlöv, J, Lind, L, Sundström, J, Syvänen, A, Kivimaki, M, Kähönen, M, Mononen, N, Raitakari, O, Viikari, J, Adamkova, V, Kiechl, S, Brion, M, Nicolaides, A, Paulweber, B, Haerting, J, Dominiczak, A, Nyberg, F, Whincup, P, Hingorani, A, Schott, J, Bezzina, C, Ingelsson, E, Ferrucci, L, Gasparini, P, Wilson, J, Rudan, I, Franke, A, Mühleisen, T, Pramstaller, P, Lehtimäki, T, Paterson, A, Parsa, A, Liu, Y, van Duijn, C, Siscovick, D, Gudnason, V, Jamshidi, Y, Salomaa, V, Felix, S, Sanna, S, Ritchie, M, Stricker, B, Stefansson, K, Boyer, L, Cappola, T, Olsen, J, Lage, K, Schwartz, P, Kääb, S, Chakravarti, A, Ackerman, M, Pfeufer, A, de Bakker, P, Newton-Cheh, C, Arking, DE, Pulit, SL, Munroe, PB, Rossin, EJ, Johnson, AD, Gudbjartsson, DF, Noseworthy, PA, Tarasov, KV, Lahtinen, AM, Nolte, IM, Smith, AV, Bis, JC, Newhouse, SJ, Evans, DS, Post, WS, Lyytikäinen, LP, Hicks, AA, Tester, DJ, Morris, RW, Naluai, AT, Panayiotou, AG, Hubacek, JA, Kumar, RD, Harris, TB, Launer, LJ, Shuldiner, AR, Bader, JS, Kao, WH, Strait, JB, Macfarlane, PW, Caulfield, MJ, Samani, NJ, Smith, JG, Greiser, KH, Heckbert, SR, Psaty, BM, Rotter, JI, Wright, AF, Daly, MJ, Arnar, DO, Denny, JC, Roden, DM, Zuvich, RL, Plump, AS, Larson, MG, O'Donnell, CJ, D'Adamo, AP, Cummings, SR, Nalls, MA, Kontula, KK, Jöckel, KH, Nöthen, MM, Loos, RJ, Thelle, DS, Sinner, MF, de Boer, RA, van der Vleuten, PA, Beckmann, BM, Wilde, AA, Behr, ER, Giudicessi, JR, Hamilton, RM, Scherer, SW, Moravec, CE, Greco, MFD, O'Connell, JR, Lee, WK, Watt, GC, Wild, SH, El Mokhtari, NE, Asselbergs, FW, van den Berg, MP, van Veldhuisen, DJ, Krijthe, BP, Franco, OH, Kors, JA, Uitterlinden, AG, Witteman, JC, Oostra, BA, Abecasis, GR, Lakatta, EG, Markus, MR, Spector, TD, Syvänen, AC, Raitakari, OT, Viikari, JS, Nicolaides, AN, Dominiczak, AF, Whincup, PH, Hingorani, AD, Schott, JJ, Bezzina, CR, Wilson, JF, Mühleisen, TW, Pramstaller, PP, Lehtimäki, TJ, Paterson, AD, van Duijn, CM, Siscovick, DS, Felix, SB, Ritchie, MD, Stricker, BH, Boyer, LA, Cappola, TP, Olsen, JV, Schwartz, PJ, Ackerman, MJ, de Bakker, PI, Arking, D, Pulit, S, Crotti, L, van der Harst, P, Munroe, P, Koopmann, T, Sotoodehnia, N, Rossin, E, Morley, M, Wang, X, Johnson, A, Lundby, A, Gudbjartsson, D, Noseworthy, P, Eijgelsheim, M, Bradford, Y, Tarasov, K, Dörr, M, Müller-Nurasyid, M, Lahtinen, A, Nolte, I, Smith, A, Bis, J, Isaacs, A, Newhouse, S, Evans, D, Post, W, Waggott, D, Lyytikäinen, L, Hicks, A, Eisele, L, Ellinghaus, D, Hayward, C, Navarro, P, Ulivi, S, Tanaka, T, Tester, D, Chatel, S, Gustafsson, S, Kumari, M, Morris, R, Naluai, A, Padmanabhan, S, Kluttig, A, Strohmer, B, Panayiotou, A, Torres, M, Knoflach, M, Hubacek, J, Slowikowski, K, Raychaudhuri, S, Kumar, R, Harris, T, Launer, L, Shuldiner, A, Alonso, A, Bader, J, Ehret, G, Huang, H, Kao, W, Strait, J, Macfarlane, P, Brown, M, Caulfield, M, Samani, N, Kronenberg, F, Willeit, J, Smith, J, Greiser, K, Meyer Zu Schwabedissen, H, Werdan, K, Carella, M, Zelante, L, Heckbert, S, Psaty, B, Rotter, J, Kolcic, I, Polašek, O, Wright, A, Griffin, M, Daly, M, Arnar, D, Hólm, H, Thorsteinsdottir, U, Denny, J, Roden, D, Zuvich, R, Emilsson, V, Plump, A, Larson, M, O'Donnell, C, Yin, X, Bobbo, M, D'Adamo, A, Iorio, A, Sinagra, G, Carracedo, A, Cummings, S, Nalls, M, Jula, A, Kontula, K, Marjamaa, A, Oikarinen, L, Perola, M, Porthan, K, Erbel, R, Hoffmann, P, Jöckel, K, Kälsch, H, Nöthen, M, den Hoed, M, Loos, R, Thelle, D, Gieger, C, Meitinger, T, Perz, S, Peters, A, Prucha, H, Sinner, M, Waldenberger, M, de Boer, R, Franke, L, van der Vleuten, P, Beckmann, B, Martens, E, Bardai, A, Hofman, N, Wilde, A, Behr, E, Dalageorgou, C, Giudicessi, J, Medeiros-Domingo, A, Kyndt, F, Probst, V, Ghidoni, A, Insolia, R, Hamilton, R, Scherer, S, Brandimarto, J, Margulies, K, Moravec, C, Greco, M, Fuchsberger, C, O'Connell, J, Lee, W, Watt, G, Campbell, H, Wild, S, El Mokhtari, N, Frey, N, Asselbergs, F, Mateo Leach, I, Navis, G, van den Berg, M, van Veldhuisen, D, Kellis, M, Krijthe, B, Franco, O, Hofman, A, Kors, J, Uitterlinden, A, Witteman, J, Kedenko, L, Lamina, C, Oostra, B, Abecasis, G, Lakatta, E, Mulas, A, Orrú, M, Schlessinger, D, Uda, M, Markus, M, Völker, U, Snieder, H, Spector, T, Arnlöv, J, Lind, L, Sundström, J, Syvänen, A, Kivimaki, M, Kähönen, M, Mononen, N, Raitakari, O, Viikari, J, Adamkova, V, Kiechl, S, Brion, M, Nicolaides, A, Paulweber, B, Haerting, J, Dominiczak, A, Nyberg, F, Whincup, P, Hingorani, A, Schott, J, Bezzina, C, Ingelsson, E, Ferrucci, L, Gasparini, P, Wilson, J, Rudan, I, Franke, A, Mühleisen, T, Pramstaller, P, Lehtimäki, T, Paterson, A, Parsa, A, Liu, Y, van Duijn, C, Siscovick, D, Gudnason, V, Jamshidi, Y, Salomaa, V, Felix, S, Sanna, S, Ritchie, M, Stricker, B, Stefansson, K, Boyer, L, Cappola, T, Olsen, J, Lage, K, Schwartz, P, Kääb, S, Chakravarti, A, Ackerman, M, Pfeufer, A, de Bakker, P, Newton-Cheh, C, Arking, DE, Pulit, SL, Munroe, PB, Rossin, EJ, Johnson, AD, Gudbjartsson, DF, Noseworthy, PA, Tarasov, KV, Lahtinen, AM, Nolte, IM, Smith, AV, Bis, JC, Newhouse, SJ, Evans, DS, Post, WS, Lyytikäinen, LP, Hicks, AA, Tester, DJ, Morris, RW, Naluai, AT, Panayiotou, AG, Hubacek, JA, Kumar, RD, Harris, TB, Launer, LJ, Shuldiner, AR, Bader, JS, Kao, WH, Strait, JB, Macfarlane, PW, Caulfield, MJ, Samani, NJ, Smith, JG, Greiser, KH, Heckbert, SR, Psaty, BM, Rotter, JI, Wright, AF, Daly, MJ, Arnar, DO, Denny, JC, Roden, DM, Zuvich, RL, Plump, AS, Larson, MG, O'Donnell, CJ, D'Adamo, AP, Cummings, SR, Nalls, MA, Kontula, KK, Jöckel, KH, Nöthen, MM, Loos, RJ, Thelle, DS, Sinner, MF, de Boer, RA, van der Vleuten, PA, Beckmann, BM, Wilde, AA, Behr, ER, Giudicessi, JR, Hamilton, RM, Scherer, SW, Moravec, CE, Greco, MFD, O'Connell, JR, Lee, WK, Watt, GC, Wild, SH, El Mokhtari, NE, Asselbergs, FW, van den Berg, MP, van Veldhuisen, DJ, Krijthe, BP, Franco, OH, Kors, JA, Uitterlinden, AG, Witteman, JC, Oostra, BA, Abecasis, GR, Lakatta, EG, Markus, MR, Spector, TD, Syvänen, AC, Raitakari, OT, Viikari, JS, Nicolaides, AN, Dominiczak, AF, Whincup, PH, Hingorani, AD, Schott, JJ, Bezzina, CR, Wilson, JF, Mühleisen, TW, Pramstaller, PP, Lehtimäki, TJ, Paterson, AD, van Duijn, CM, Siscovick, DS, Felix, SB, Ritchie, MD, Stricker, BH, Boyer, LA, Cappola, TP, Olsen, JV, Schwartz, PJ, Ackerman, MJ, and de Bakker, PI

Abstract

The QT interval, an electrocardiographic measure reflecting myocardial repolarization, is a heritable trait. QT prolongation is a risk factor for ventricular arrhythmias and sudden cardiac death (SCD) and could indicate the presence of the potentially lethal mendelian long-QT syndrome (LQTS). Using a genome-wide association and replication study in up to 100,000 individuals, we identified 35 common variant loci associated with QT interval that collectively explain ∼8-10% of QT-interval variation and highlight the importance of calcium regulation in myocardial repolarization. Rare variant analysis of 6 new QT interval-associated loci in 298 unrelated probands with LQTS identified coding variants not found in controls but of uncertain causality and therefore requiring validation. Several newly identified loci encode proteins that physically interact with other recognized repolarization proteins. Our integration of common variant association, expression and orthogonal protein-protein interaction screens provides new insights into cardiac electrophysiology and identifies new candidate genes for ventricular arrhythmias, LQTS and SCD

Published
2014

37. Identification of a KCNQ1 polymorphism acting as a protective modifier against arrhythmic risk in long-QT syndrome

Author

Duchatelet, S, Crotti, L, Peat, R, Denjoy, I, Itoh, H, Berthet, M, Ohno, S, Fressart, V, Monti, M, Crocamo, C, Pedrazzini, M, Dagradi, F, Vicentini, A, Klug, D, Brink, P, Goosen, A, Swan, H, Toivonen, L, Lahtinen, A, Kontula, K, Shimizu, W, Horie, M, George, A, Trégouët, D, Guicheney, P, Schwartz, P, Monti, MC, George, AL, Trégouët, DA, Schwartz, PJ., Duchatelet, S, Crotti, L, Peat, R, Denjoy, I, Itoh, H, Berthet, M, Ohno, S, Fressart, V, Monti, M, Crocamo, C, Pedrazzini, M, Dagradi, F, Vicentini, A, Klug, D, Brink, P, Goosen, A, Swan, H, Toivonen, L, Lahtinen, A, Kontula, K, Shimizu, W, Horie, M, George, A, Trégouët, D, Guicheney, P, Schwartz, P, Monti, MC, George, AL, Trégouët, DA, and Schwartz, PJ.

Abstract

Background-Long-QT syndrome (LQTS) is characterized by such striking clinical heterogeneity that, even among family members carrying the same mutation, clinical outcome can range between sudden death and no symptoms. We investigated the role of genetic variants as modifiers of risk for cardiac events in patients with LQTS. Methods and Results-In a matched case-control study including 112 patient duos with LQTS from France, Italy, and Japan, 25 polymorphisms were genotyped based on either their association with QTc duration in healthy populations or on their role in adrenergic responses. The duos were composed of 2 relatives harboring the same heterozygous KCNQ1 or KCNH2 mutation: 1 with cardiac events and 1 asymptomatic and untreated. The findings were then validated in 2 independent founder populations totaling 174 symptomatic and 162 asymptomatic patients with LQTS, and a metaanalysis was performed. The KCNQ1 rs2074238 T-allele was significantly associated with a decreased risk of symptoms 0.34 (0.19-0.61; P<0.0002) and with shorter QTc (P<0.0001) in the combined discovery and replication cohorts. Conclusions-We provide evidence that the KCNQ1 rs2074238 polymorphism is an independent risk modifier with the minor T-allele conferring protection against cardiac events in patients with LQTS. This finding is a step toward a novel approach for risk stratification in patients with LQTS. © 2013 American Heart Association, Inc

Published
2013

39. International collaboration provides convincing linkage replication in complex disease through analysis of a large pooled data set: Crohn disease and chromosome 16

Author

Cavanaugh, J. A., Bryce, M. E., Stanford, P. M., Pavli, P., Vermeire, S., Peeters, M., Vlietinck, R., Rutgeerts, P., Rioux, J. D., Silverberg, M. S., Steinhart, A. H., Siminovitch, K. A., Hugot, J. P., Lesage, S., Zouali, H., Paavola, P., Halme, L., Färkkilä, M., Kontula, K., Annese, V., Forabosco, P., Fortina, P., Latiano, A., Van Heel, D., Parkes, M., Lench, N., Jewell, D., Brant, S. R., Bailey-Wilson, J. E., Panhuysen, C. I. M., Bayless, T. M., Cho, J. H., Bonen, D. K., Kirschner, B. S., Hanauer, S. B., Yang, H., Taylor, K., Targan, S. R., Rotter, J. I., Silver, J., Gulwani-Akolkar, B., Akolkar, P., Lin, X. -Y., Duerr, R. H., Zhang, L., Achkar, J. P., Baldassano, R. N., Daly, M. J., and Risch, N.

Subjects
Male, Genetic Linkage, International Cooperation, Ulcerative, 0302 clinical medicine, Chromosome Mapping, Chromosomes, Human, Pair 12, Chromosomes, Human, Pair 16, Colitis, Ulcerative, Crohn Disease, European Continental Ancestry Group, Family Characteristics, Female, Genetic Heterogeneity, Genetic Markers, Genetic Predisposition to Disease, Genotype, Humans, Jews, Lod Score, Microsatellite Repeats, Models, Genetic, Nuclear Family, Reproducibility of Results, Statistics, Nonparametric, Genetics, Genetics (clinical), Models, Pair 12, Genetics(clinical), 0303 health sciences, Statistics, Articles, Colitis, 3. Good health, symbols, Microsatellite, 030211 gastroenterology & hepatology, Human, Locus (genetics), Biology, White People, Chromosomes, 03 medical and health sciences, symbols.namesake, Chromosome 16, Genetic, Genetic linkage, Nonparametric, Genotyping, Chromosome 12, 030304 developmental biology, Genetic heterogeneity, Pair 16, Mendelian inheritance
Abstract

Numerous familial, non-Mendelian (i.e., complex) diseases have been screened by linkage analysis for regions harboring susceptibility genes. Except for rare, high-penetrance syndromes showing Mendelian inheritance, such as BRCA1 and BRCA2, most attempts have failed to produce replicable linkage findings. For example, in multiple sclerosis and other complex diseases, there have been many reports of significant linkage, followed by numerous failures to replicate. In inflammatory bowel disease (IBD), linkage to two regions has elsewhere been reported at genomewide significance levels: the pericentromeric region on chromosome 16 (IBD1) and chromosome 12q (IBD2). As with other complex diseases, the subsequent support for these localizations has been variable. In this article, we report the results of an international collaborative effort to investigate these putative localization by pooling of data sets that do not individually provide convincing evidence for linkage to these regions. Our results, generated by the genotyping and analysis of 12 microsatellite markers in 613 families, provide unequivocal replication of linkage for a common human disease: a Crohn disease susceptibility locus on chromosome 16 (maximum LOD score 5.79). Despite failure to replicate the previous evidence for linkage on chromosome 12, the results described herein indicate the need to further investigate the potential role of this locus in susceptibility to ulcerative colitis. This report provides a convincing example of the collaborative approach necessary to obtain the sample numbers required to achieve statistical power in studies of complex human traits.

Published
2001

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