@article{AlgharablyBolbrinkerLeziusetal.2017, author = {Algharably, Engi A. H. and Bolbrinker, Juliane and Lezius, Susanne and Reibis, Rona Katharina and Wegscheider, Karl and V{\"o}ller, Heinz and Kreutz, Reinhold}, title = {Uromodulin associates with cardiorenal function in patients with hypertension and cardiovascular disease}, series = {Journal of hypertension}, volume = {35}, journal = {Journal of hypertension}, publisher = {Lippincott Williams \& Wilkins}, address = {Philadelphia}, issn = {0263-6352}, doi = {10.1097/HJH.0000000000001432}, pages = {2053 -- 2058}, year = {2017}, abstract = {Objective:Common genetic variants in the gene encoding uromodulin (UMOD) have been associated with renal function, blood pressure (BP) and hypertension. We investigated the associations between an important single nucleotide polymorphism (SNP) in UMOD, that is rs12917707-G>T, and estimated glomerular filtration rate (eGFR), BP and cardiac organ damage as determined by echocardiography in patients with arterial hypertension.Methods:A cohort of 1218 treated high-risk patients (mean age 58.5 years, 83\% men) with documented cardiovascular disease (81\% with coronary heart disease) was analysed.Results:The mean values for 24-h SBP and DBP were 124.714.7 and 73.9 +/- 9.4mmHg; mean eGFR was 77.5 +/- 18.3ml/min per 1.73m(2), mean left ventricular ejection fraction was 59.3 +/- 9.9\% and mean left ventricular mass index in men and women was 53.9 +/- 23.2 and 54.9 +/- 23.7g/m(2.7) with 50.4\% of patients having left ventricular hypertrophy. A significant association between rs12917707 and eGFR was observed with T-allele carriers showing significantly higher eGFR values (+2.6ml/min per 1.73m(2), P=0.006) than noncarriers. This SNP associated also with left atrial diameter (P=0.007); homozygous carriers of the T-allele had smaller left atrial diameter (-1.5mm) than other genotype groups (P=0.040). No significant associations between rs12917707 and other cardiac or BP phenotypes were observed.Conclusions:These findings extend the previously documented role of UMOD for renal function also to treated high-risk patients with arterial hypertension and reveal a novel association with left atrial remodelling and thus a potential cardiorenal link modulated by UMOD.}, language = {en} } @article{HuberTreszlReibisetal.2013, author = {Huber, Matthias and Treszl, Andras and Reibis, Rona Katharina and Teichmann, Christopher and Zergibel, Irina and Bolbrinker, Juliane and Scholze, Juergen and Wegscheider, Karl and V{\"o}ller, Heinz and Kreutz, Reinhold}, title = {Genetics of melatonin receptor type 2 is associated with left ventricular function in hypertensive patients treated according to guidelines}, series = {European journal of internal medicine : official journal of the European Federation of Internal Medicine}, volume = {24}, journal = {European journal of internal medicine : official journal of the European Federation of Internal Medicine}, number = {7}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0953-6205}, doi = {10.1016/j.ejim.2013.03.015}, pages = {650 -- 655}, year = {2013}, abstract = {Background: Melatonin exerts multiple biological effects with potential impact on human diseases. This is underscored by genetic studies that demonstrated associations between melatonin receptor type 2 gene (MTNR1B) polymorphisms and characteristics of type 2 diabetes. We set out to test the hypothesis whether genetic variants at MTNR1B are also relevant for other disease phenotypes within the cardiovascular continuum. We thus investigated single nucleotide polymorphisms (SNPs) of MTNR1B in relation to blood pressure (BP) and cardiac parameters in hypertensive patients. Methods: Patients (n = 605, mean age 56.2 +/- 9.4 years, 82.3\% male) with arterial hypertension and cardiac ejection fraction (EF) >= 40\% were studied. Cardiac parameters were assessed by echocardiography. Results: The cohort comprised subjects with coronary heart disease (73.1\%) and myocardial infarction (48.1\%) with a mean EF of 63.7 +/- 8.9\%. Analysis of SNPs rs10830962, rs4753426, rs12804291, rs10830963, and rs3781638 revealed two haplotypes 1 and 2 with frequencies of 0.402 and 0.277, respectively. Carriers with haplotype 1 (CTCCC) showed compared to non-carriers a higher mean 24-hour systolic BP (difference BP: 2.4 mm Hg, 95\% confidence interval (CI): 0.3 to 4.5 mm Hg, p = 0.023). Haplotype 2 (GCCGA) was significantly related to EF with an absolute increase of 1.8\% (CI: 0.45 to 3.14\%) in carriers versus non-carriers (p = 0.009). Conclusion: Genetics of MTNR1B point to impact of the melatonin signalling pathway for BP and left ventricular function. This may support the importance of the melatonin system as a potential therapeutic target.}, language = {en} }