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Hypertension

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https://www.readbyqxmd.com/read/28630211/recent-advances-in-hypertension-and-cardiovascular-toxicities-with-vascular-endothelial-growth-factor-inhibition
#1
REVIEW
Rhian M Touyz, Ninian N Lang, Joerg Herrmann, Anton H van den Meiracker, A H Jan Danser
No abstract text is available yet for this article.
June 19, 2017: Hypertension
https://www.readbyqxmd.com/read/28630210/short-telomeres-but-not-telomere-attrition-rates-are-associated-with-carotid-atherosclerosis
#2
Simon Toupance, Carlos Labat, Mohamed Temmar, Patrick Rossignol, Masayuki Kimura, Abraham Aviv, Athanase Benetos
Short telomeres are associated with atherosclerosis. However, the temporal relationship between atherosclerosis and telomere length is unclear. The objective of this work was to examine the temporal formation and progression of carotid atherosclerotic plaques in relation to telomere dynamics. In a longitudinal study, comprising 154 French men and women (aged 31-76 years at baseline), carotid plaques were quantified by echography, and telomere length on leucocytes was measured by Southern blots at baseline and follow-up examinations...
June 19, 2017: Hypertension
https://www.readbyqxmd.com/read/28630209/functional-task-3-like-channels-in-mitochondria-of-aldosterone-producing-zona-glomerulosa-cells
#3
Junlan Yao, David McHedlishvili, William E McIntire, Nick A Guagliardo, Alev Erisir, Craig A Coburn, Vincent P Santarelli, Douglas A Bayliss, Paula Q Barrett
Ca(2+) drives aldosterone synthesis in the cytosolic and mitochondrial compartments of the adrenal zona glomerulosa cell. Membrane potential across each of these compartments regulates the amplitude of the Ca(2+) signal; yet, only plasma membrane ion channels and their role in regulating cell membrane potential have garnered investigative attention as pathological causes of human hyperaldosteronism. Previously, we reported that genetic deletion of TASK-3 channels (tandem pore domain acid-sensitive K(+) channels) from mice produces aldosterone excess in the absence of a change in the cell membrane potential of zona glomerulosa cells...
June 19, 2017: Hypertension
https://www.readbyqxmd.com/read/28630208/telomeres-and-atherosclerosis-the-intricate-pursuit-of-mechanistic-insight-through-epidemiology
#4
EDITORIAL
Tim De Meyer, Marc L De Buyzere
No abstract text is available yet for this article.
June 19, 2017: Hypertension
https://www.readbyqxmd.com/read/28630207/of-mice-and-man-and-the-regulation-of-aldosterone-secretion
#5
EDITORIAL
Celso E Gomez-Sanchez, Maniselvan Kuppusamy, Elise P Gomez-Sanchez
No abstract text is available yet for this article.
June 19, 2017: Hypertension
https://www.readbyqxmd.com/read/28607132/impaired-muscle-oxygenation-and-elevated-exercise-blood-pressure-in-hypertensive-patients-links-with-vascular-stiffness
#6
Konstantina Dipla, Areti Triantafyllou, Nikolaos Koletsos, Stavros Papadopoulos, Vasileios Sachpekidis, Ioannis S Vrabas, Eugenia Gkaliagkousi, Andreas Zafeiridis, Stella Douma
This study examined in vivo (1) skeletal muscle oxygenation and microvascular function, at rest and during handgrip exercise, and (2) their association with macrovascular function and exercise blood pressure (BP), in newly diagnosed, never-treated patients with hypertension and normotensive individuals. Ninety-one individuals (51 hypertensives and 40 normotensives) underwent office and 24-hour ambulatory BP, arterial stiffness, and central aortic BP assessment, followed by a 5-minute arterial occlusion and a 3-minute submaximal handgrip exercise...
June 12, 2017: Hypertension
https://www.readbyqxmd.com/read/28607131/trends-in-prehypertension-and-hypertension-risk-factors-in-us-adults-1999-2012
#7
John N Booth, Jiexiang Li, Lu Zhang, Liwei Chen, Paul Muntner, Brent Egan
Prehypertension is associated with increased risk for hypertension and cardiovascular disease. Data are limited on the temporal changes in the prevalence of prehypertension and risk factors for hypertension and cardiovascular disease among US adults with prehypertension. We analyzed data from 30 958 US adults ≥20 years of age who participated in the National Health and Nutrition Examination Surveys between 1999 and 2012. Using the mean of 3 blood pressure (BP) measurements from a study examination, prehypertension was defined as systolic BP of 120 to 139 mm Hg and diastolic BP <90 mm Hg or diastolic BP of 80 to 89 mm Hg and systolic BP <140 mm Hg among participants not taking antihypertensive medication...
June 12, 2017: Hypertension
https://www.readbyqxmd.com/read/28607130/s1pr1-sphingosine-1-phosphate-receptor-1-signaling-regulates-blood-flow-and-pressure
#8
Anna Cantalupo, Antonella Gargiulo, Elona Dautaj, Catherine Liu, Yi Zhang, Timothy Hla, Annarita Di Lorenzo
Nitric oxide is one of the major endothelial-derived vasoactive factors that regulate blood pressure (BP), and the bioactive lipid mediator S1P (sphingosine-1-phosphate) is a potent activator of endothelial nitric oxide synthase through G protein-coupled receptors. Endothelial-derived S1P and the autocrine/paracrine activation of S1PR (S1P receptors) play an important role in preserving vascular functions and BP homeostasis. Furthermore, FTY720 (fingolimod), binding to 4 out of 5 S1PRs recently approved by the Food and Drug Administration to treat autoimmune conditions, induces a modest and transient decrease in heart rate in both animals and humans, suggesting that drugs targeting sphingolipid signaling affect cardiovascular functions in vivo...
June 12, 2017: Hypertension
https://www.readbyqxmd.com/read/28607129/s1pr1-sphingosine-1-phosphate-receptor-1-signaling-in-the-regulation-of-vascular-tone-and-blood-pressure-is-s1pr1-doing-the-trick
#9
EDITORIAL
Anja Meissner
No abstract text is available yet for this article.
June 12, 2017: Hypertension
https://www.readbyqxmd.com/read/28607128/relationship-of-hypertension-to-coronary-atherosclerosis-and-cardiac-events-in-patients-with-coronary-computed-tomographic-angiography
#10
Rine Nakanishi, Lohendran Baskaran, Heidi Gransar, Matthew J Budoff, Stephan Achenbach, Mouaz Al-Mallah, Filippo Cademartiri, Tracy Q Callister, Hyuk-Jae Chang, Kavitha Chinnaiyan, Benjamin J W Chow, Augustin DeLago, Martin Hadamitzky, Joerg Hausleiter, Ricardo Cury, Gudrun Feuchtner, Yong-Jin Kim, Jonathon Leipsic, Philipp A Kaufmann, Erica Maffei, Gilbert Raff, Leslee J Shaw, Todd C Villines, Allison Dunning, Hugo Marques, Gianluca Pontone, Daniele Andreini, Ronen Rubinshtein, Jeroen Bax, Erica Jones, Niree Hindoyan, Millie Gomez, Fay Y Lin, James K Min, Daniel S Berman
Hypertension is an atherosclerosis factor and is associated with cardiovascular risk. We investigated the relationship between hypertension and the presence, extent, and severity of coronary atherosclerosis in coronary computed tomographic angiography and cardiac events risk. Of 17 181 patients enrolled in the CONFIRM registry (Coronary CT Angiography Evaluation for Clinical Outcomes: An International Multicenter Registry) who underwent ≥64-detector row coronary computed tomographic angiography, we identified 14 803 patients without known coronary artery disease...
June 12, 2017: Hypertension
https://www.readbyqxmd.com/read/28607127/role-of-the-primary-cilia-on-the-macula-densa-and-thick-ascending-limbs-in-regulation-of-sodium-excretion-and-hemodynamics
#11
Jiangping Song, Lei Wang, Fan Fan, Jin Wei, Jie Zhang, Yan Lu, Yiling Fu, Shaohui Wang, Luis A Juncos, Ruisheng Liu
We investigated the significance of the primary cilia on the macula densa and thick ascending limb (TAL) in regulation of renal hemodynamics, sodium excretion, and blood pressure in this study. A tissue-specific primary cilia knock-out (KO) mouse line was generated by crossing NKCC2-Cre mice with IFT88-Δ/flox mice (NKCC2(CRE); IFT88Δ(/flox)), in which the primary cilia were deleted from the macula densa and TAL. NO generation was measured with a fluorescent dye (4,5-diaminofluorescein diacetate) in isolated perfused juxtaglomerular apparatus...
June 12, 2017: Hypertension
https://www.readbyqxmd.com/read/28607126/mechanisms-and-treatment-of-halogen-inhalation-induced-pulmonary-and-systemic-injuries-in-pregnant-mice
#12
James A Lambert, Matthew A Carlisle, Adam Lam, Saurabh Aggarwal, Stephen Doran, Changchun Ren, Wayne E Bradley, Louis Dell'Italia, Namasivayam Ambalavanan, David A Ford, Rakesh P Patel, Tamas Jilling, Sadis Matalon
Inhalation of oxidant gases has been implicated in adverse outcomes in pregnancy, but animal models to address mechanisms and studies to identify potential pregnancy-specific therapies are lacking. Herein, we show that inhalation of bromine at 600 parts per million for 30 minutes by pregnant mice on the 15th day of embryonic development results in significantly lower survival after 96 hours than an identical level of exposure in nonpregnant mice. On the 19th embryonic day, bromine-exposed pregnant mice have increased systemic blood pressure, abnormal placental development, severe fetal growth restriction, systemic inflammation, increased levels of circulating antiangiogenic short fms-like tyrosine kinase-1, and evidence of pulmonary and cardiac injury...
June 12, 2017: Hypertension
https://www.readbyqxmd.com/read/28607125/effects-of-folic-acid-therapy-on-the-new-onset-proteinuria-in-chinese-hypertensive-patients-a-post-hoc-analysis-of-the-renal-substudy-of-csppt-china-stroke-primary-prevention-trial
#13
Youbao Li, Min Liang, Guobao Wang, Binyan Wang, Mingli He, Genfu Tang, Delu Yin, Xin Xu, Yong Huo, Yimin Cui, Fan Fan Hou, Xianhui Qin
We aimed to test the hypothesis that treatment with enalapril and folic acid is more effective in preventing new-onset proteinuria than enalapril alone among hypertensive patients. This is a post hoc analysis of the renal substudy of the CSPPT (China Stroke Primary Prevention Trial). A total of 13 071 eligible participants without proteinuria were randomized to receive a double-blind daily treatment of a single tablet containing 10-mg enalapril and 0.8-mg folic acid (n=6511) or 10-mg enalapril alone (n=6560)...
June 12, 2017: Hypertension
https://www.readbyqxmd.com/read/28607124/placental-vesicles-carry-active-endothelial-nitric-oxide-synthase-and-their-activity-is-reduced-in-preeclampsia
#14
Carolina Motta-Mejia, Neva Kandzija, Wei Zhang, Vuyane Mhlomi, Ana Sofia Cerdeira, Alexandra Burdujan, Dionne Tannetta, Rebecca Dragovic, Ian L Sargent, Christopher W Redman, Uday Kishore, Manu Vatish
Preeclampsia, a multisystem hypertensive disorder of pregnancy, is associated with increased systemic vascular resistance. Placentae from patients with preeclampsia have reduced levels of endothelial nitric oxide synthase (eNOS) and, thus, less nitric oxide (NO). Syncytiotrophoblast extracellular vesicles (STBEV), comprising microvesicles (STBMV) and exosomes, carry signals from the syncytiotrophoblast to the mother. We hypothesized that STBEV-bound eNOS (STBEV-eNOS), capable of producing NO, are released into the maternal circulation...
June 12, 2017: Hypertension
https://www.readbyqxmd.com/read/28584019/is-it-time-to-employ-a-measure-of-visit-to-visit-variability-in-clinical-practice
#15
EDITORIAL
Paul K Whelton, Benjamin D Pollock
No abstract text is available yet for this article.
June 5, 2017: Hypertension
https://www.readbyqxmd.com/read/28584017/quarter-dose-combination-therapy-good-news-for-blood-pressure-control
#16
EDITORIAL
Guido Grassi, Giuseppe Mancia
No abstract text is available yet for this article.
June 5, 2017: Hypertension
https://www.readbyqxmd.com/read/28584014/prognostic-value-of-variability-in-systolic-blood-pressure-related-to-vascular-events-and-premature-death-in-type-2-diabetes-mellitus-the-advance-on-study
#17
Toshiaki Ohkuma, Mark Woodward, Min Jun, Paul Muntner, Jun Hata, Stephen Colagiuri, Stephen Harrap, Giuseppe Mancia, Neil Poulter, Bryan Williams, Peter Rothwell, John Chalmers
Visit-to-visit variability in systolic blood pressure (SBP) is a risk factor for cardiovascular events. However, whether it provides additional predictive information beyond traditional risk factors, including mean SBP, in the long term is unclear. The ADVANCE trial (Action in Diabetes and Vascular Disease: Preterax and Diamicron Modified Release Controlled Evaluation) was a randomized controlled trial in patients with type 2 diabetes mellitus; ADVANCE-ON (ADVANCE-Observational) followed-up patients subsequently...
June 5, 2017: Hypertension
https://www.readbyqxmd.com/read/28584012/nefm-neurofilament-medium-polypeptide-a-marker-for-zona-glomerulosa-cells-in-human-adrenal-inhibits-d1r-dopamine-d1-receptor-mediated-secretion-of-aldosterone
#18
Carmela Maniero, Sumedha Garg, Wanfeng Zhao, Timothy Isaac Johnson, Junhua Zhou, Mark Gurnell, Morris J Brown
Heterogeneity among aldosterone-producing adenomas (APAs) has been highlighted by the discovery of somatic mutations. KCNJ5 mutations predominate in large zona fasciculata (ZF)-like APAs; mutations in CACNA1D, ATP1A1, ATP2B3, and CTNNB1 are more likely to be found in small zona glomerulosa (ZG)-like APAs. Microarray comparison of KCNJ5 mutant versus wild-type APAs revealed significant differences in transcriptomes. NEFM, encoding a neurofilament subunit which is a D1R (dopamine D1 receptor)-interacting protein, was 4-fold upregulated in ZG-like versus ZF-like APAs and 14-fold more highly expressed in normal ZG versus ZF...
June 5, 2017: Hypertension
https://www.readbyqxmd.com/read/28584011/regulatory-t-cell-augmentation-or-interleukin-17-inhibition-prevents-calcineurin-inhibitor-induced-hypertension-in-mice
#19
Valorie L Chiasson, Abhinandan R Pakanati, Marcos Hernandez, Kristina J Young, Kelsey R Bounds, Brett M Mitchell
The immunosuppressive calcineurin inhibitors cyclosporine A and tacrolimus alter T-cell subsets and can cause hypertension, vascular dysfunction, and renal toxicity. We and others have reported that cyclosporine A and tacrolimus decrease anti-inflammatory regulatory T cells and increase proinflammatory interleukin-17-producing T cells; therefore, we hypothesized that inhibition of these effects using noncellular therapies would prevent the hypertension, endothelial dysfunction, and renal glomerular injury induced by calcineurin inhibitor therapy...
June 5, 2017: Hypertension
https://www.readbyqxmd.com/read/28584010/androstenedione-and-17-%C3%AE-hydroxyprogesterone-are-better-indicators-of-adrenal-vein-sampling-selectivity-than-cortisol
#20
Giulio Ceolotto, Giorgia Antonelli, Giuseppe Maiolino, Maurizio Cesari, Giacomo Rossitto, Valeria Bisogni, Mario Plebani, Gian Paolo Rossi
For identification of potentially surgically curable primary aldosteronism, guidelines recommend use of adrenal vein sampling (AVS) that requires selective catheterization of both adrenal veins as verified by using the cortisol-derived selectivity index. Unfortunately, bilaterally selective studies are not obtained under unstimulated conditions in a proportion of the cases ranging between 15% and 50% depending on the cutoff used. We therefore investigated whether 17-α-hydroxyprogesterone and androstenedione, which showed a higher step-up between adrenal vein and inferior vena cava blood than cortisol, can ascertain selectivity when cortisol failed to do so...
June 5, 2017: Hypertension
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