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Essential hypertension

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https://www.readbyqxmd.com/read/28527699/at1-receptor-signaling-pathways-in-the-cardiovascular-system
#1
REVIEW
Tatsuo Kawai, Steven J Forrester, Shannon O'Brien, Ariele Baggett, Victor Rizzo, Satoru Eguchi
The importance of the renin angiotensin aldosterone system in cardiovascular physiology and pathophysiology has been well described whereas the detailed molecular mechanisms remain elusive. The angiotensin II type 1 receptor (AT1 receptor) is one of the key players in the renin angiotensin aldosterone system. The AT1 receptor promotes various intracellular signaling pathways resulting in hypertension, endothelial dysfunction, vascular remodeling and end organ damage. Accumulating evidence shows the complex picture of AT1 receptor-mediated signaling; AT1 receptor-mediated heterotrimeric G protein-dependent signaling, transactivation of growth factor receptors, NADPH oxidase and ROS signaling, G protein-independent signaling, including the β-arrestin signals and interaction with several AT1 receptor interacting proteins...
May 17, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28526818/essential-hypertension-a-filtered-serum-based-metabolomics-study
#2
Keerti Ameta, Ashish Gupta, Sudeep Kumar, Rishi Sethi, Deepak Kumar, Abbas Ali Mahdi
Despite the easy and reliable methods of blood pressure measurement, the screening of essential hypertension (EH) is usually ignored due to delayed onset of symptoms. A probe into the biochemical changes in hypertension would serve as a welcome asset to provide insight into the mechanistic aspects of EH. Filtered serum samples from 64 EH patients and 59 healthy controls (HC) were analysed using 800 MHz nuclear magnetic resonance (NMR) spectroscopy. Application of principal component analysis (PCA) and orthogonal partial least-squares discriminant analysis (OPLS-DA) following receiver operating characteristic (ROC) curve of NMR data reveals significantly perturbed metabolites: alanine, arginine, methionine, pyruvate, adenine, and uracil...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28526806/the-relationship-among-cardiac-structure-dietary-salt-and-aldosterone-in-patients-with-primary-aldosteronism
#3
Chi-Sheng Hung, Xue-Ming Wu, Ching-Way Chen, Ying-Hsien Chen, Vin-Cent Wu, Che-Wei Liao, Yi-Yao Chang, Ruh-Fang Yen, Ching-Chu Lu, Mao-Yuan M Su, Kao-Lang Liu, Chin-Chen Chang, Li-Yu Daisy Liu, Kwan-Dun Wu, Yen-Hung Lin
Salt intake is highly associated with cardiac structure in patients with primary aldosteronism (PA). We investigated the association among dietary salt intake, aldosterone and left ventricular mass in patients with PA. We enrolled 158 patients with PA and 158 patients with essential hypertension. We measured 24-hour urinary sodium (UNa) and aldosterone (UAldo) level and echocardiography parameters. In patients with PA, the UAldo level was positively correlated with left ventricular mass index (LVMI; r=0.231, p=0...
April 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28526264/celecoxib-aggravates-cardiac-apoptosis-in-l-name-induced-pressure-overload-model-in-rats-immunohistochemical-determination-of-cardiac-caspase-3-mcl-1-bax-and-bcl-2
#4
Sarah M Mosaad, Sawsan A Zaitone, Abdelazim Ibrahim, Amani A El-Baz, Dina M Abo-Elmatty, Yasser M Moustafa
The mechanism of celecoxib cardiovascular adverse events was earlier investigated; yet in-depth investigations are needed to assess the involvement of its pro-apoptotic effect throughout this process. An in-vivo chronic rat model of pressure overload employing Nʷ-nitro-l-arginine methyl ester (L-NAME) was tested at different time intervals to ensure the occurrence of persistent myocardial apoptosis along with pressure overload. Seven groups of male Wistar rats were assigned as (i) distilled water; (ii-iv) L-NAME (60 mg/kg) for 6, 12 or 16 weeks; (v-vii) L-NAME [16 weeks] + celecoxib (25, 50 or 100 mg/kg), from week 13 to week 16...
May 16, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28524828/relationships-of-inflammatory-factors-and-risk-factors-with-different-target-organ-damage-in-essential-hypertension-patients
#5
Chun-Lin Lai, Jin-Ping Xing, Xiao-Hong Liu, Jie Qi, Jian-Qiang Zhao, You-Rui Ji, Wu-Xiao Yang, Pu-Juan Yan, Chun-Yan Luo, Lu-Fang Ruan
BACKGROUND: Atherosclerosis (AS) is an inflammatory disease. Inflammation was considered to play a role in the whole process of AS. This study aimed to analyze the relationships of inflammatory factors and risk factors with different target organ damages (TOD) in essential hypertension (EH) patients and to explore its clinical significance. METHODS: A total of 294 EH patients were selected and divided into four groups according to their conditions of TOD. Forty-eight healthy subjects were selected as control...
June 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28523311/study-concerning-the-histopathological-changes-in-chronic-hepatopathies
#6
Cristian Marius Daina, Lucia Georgeta Daina, Marinela Bonta, Daniela Rahotă, Gabriela MuŢiu
Chronic liver diseases represent a public health problem both at global level and in our country. Their significance is due not only to the large number of cases but also to their severe complications and associated diseases, which increase the gravity of prognosis. Hepatopathies generally develop by formation and accumulation of fibrous tissue, which leads to architectural distortions in the structure of the liver. Hepatic fibrosis is the result of chronic injury and plays a direct role in the pathogenesis of the hepatocellular dysfunction and portal hypertension...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28522299/most-advisable-strategy-in-search-of-asymptomatic-target-organ-damage-in-hypertensive-patients
#7
J Abellán-Huerta, L Prieto-Valiente, L Consuegra-Sánchez, S Montoro-García, A B Salguero-Merino, R Morales-López, J Abellán-Alemán, F Soria-Arcos
OBJECTIVE: To evaluate the diagnostic potential of seven examinations in order to define the most suitable strategy for target organ damage (TOD) search in hypertensive patients. METHODS: This is a descriptive, cross-sectional study. 153 consecutive treated and essential hypertensive patients were enrolled. Patients with established cardiovascular or chronic renal disease (stage ≥4) were excluded. TOD search was assessed by: glomerular filtration rate (GFR), albumin/creatinine ratio (ACR), electrocardiogram (ECG), echocardiogram (ECO), ankle-brachial index (ABI), pulse wave velocity (PWV), and carotid ultrasound (intima media thickness and presence of plaques)...
May 15, 2017: Hipertensión y Riesgo Vascular
https://www.readbyqxmd.com/read/28518053/effects-of-genetic-variants-in-ugt1a1-slco1b3-abcb1-abcc2-abcg2-orm1-on-pk-pd-of-telmisartan-in-chinese-patients-with-mild-to-moderate-essential-hypertension%C3%A2
#8
Qi Pei, Liu Yang, Hong-Yi Tan, Shi-Kun Liu, Yang Liu, Lu Huang, Rong-Hui Li, Qian Wan, Jie Huang, Cheng-Xian Guo, Xiao-Cong Zuo, Jingle Li, Guo-Ping Yang
PURPOSE: This study aimed to understand the effects of single nucleotide polymorphisms (SNPs) in UGT1A1, SLCO1B3, ABCB1, ABCC2, ABCG2, and ORM1 on the pharmacokinetics (PK) (plasma concentration) and pharmacodynamics (PD) (blood pressure) of telmisartan in Chinese patients. METHODS: 58 Han Chinese patients (aged 45 - 72 years) with mild to moderate essential hypertension were included and received 80 mg/day telmisartan for 4 weeks. The plasma concentration and genetic variants were determined by LC/MS/MS and MALDI-TOF mass spectrometry, respectively...
May 18, 2017: International Journal of Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28515914/analysis-of-the-function-of-microrna-375-in-humans-using-bioinformatics
#9
Xiaohua Chen, Baoxia Li, Rongcheng Luo, Sina Cai, Cao Zhang, Xiaolong Cao
MicroRNA-375 (miR-375) is expressed at low levels in many types of solid tumor, particularly in gastrointestinal tumors. It is considered to be important in the development of cancer and certain diseases. Thus, more detailed knowledge is required on the particular functions of miR-375. miRs function by regulating target genes. Therefore, in the current study, miRWalk (which includes the data from 10 prediction software programs) was used to predict the target genes of miR-375. The genes, which were co-predicted using five different software programs were further analyzed using Database for Annotation, Visualization and Integrated Discovery online software [including gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis]...
May 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28513237/t-cell-subsets-are-associated-with-serum-homocysteine-concentration-in-patients-with-essential-hypertension
#10
Huifeng Xu, Huan Zheng, Junling Huang, Yi Shen, Ming Luo
OBJECTIVE: To explore the association between serum homocysteine (Hcy) concentration and T-cell subsets from patients with essential hypertension. PATIENTS AND METHODS: A total of 218 essential hypertension patients were recruited, of which 170 were H-type essential hypertensive and 48 were non-H-type essential hypertensive. H-type essential hypertensive patients were divided into three groups by concentration of serum Hcy. The peripheral blood T-cell subsets (CD3(+)%, CD4(+)%, CD8(+) T%, CD4(+)/CD8(+)) and clinical features including age, sex, serum creatinine, uric acid, total cholesterol, triglycerides, low-density lipoprotein cholesterol, and high-density lipoprotein cholesterol were recorded and analyzed with T-cell subsets which were counted by fluorescence activated cytometry...
May 17, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28513228/relationship-between-chop-gadd153-and-unstable-human-carotid-atherosclerotic-plaque
#11
Suping Wang, Meiyan Zhang, Zanhua Liu, Wuyang Yang, Junwei Shi, Victor Dean, Dong Chen
BACKGROUND AND AIMS: The signaling protein C/EBP homologous protein (CHOP) and corresponding growth-arrest-and-DNA-damage-inducible gene 153 (GADD153) is associated with endoplasmic reticulum stress (ERS), which can lead to apoptosis. Our study aims to elucidate the role of CHOP/GADD153 in unstable atherosclerotic (AS) plaque formation isolated from confounding factors such as diabetes mellitus, primary hyperlipidemia, autoimmune deficiencies/abnormalities, essential hypertension, chronic heart failure, chronic kidney disease, and smoking...
May 17, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28513222/the-contribution-of-cyp2c-gene-subfamily-involved-in-epoxygenase-pathway-of-arachidonic-acids-metabolism-to-hypertension-susceptibility-in-russian-population
#12
Alexey Polonikov, Marina Bykanova, Irina Ponomarenko, Svetlana Sirotina, Anna Bocharova, Kseniya Vagaytseva, Vadim Stepanov, Mikhail Churnosov, Olga Bushueva, Maria Solodilova, Yaroslav Shvetsov, Vladimir Ivanov
Numerous studies demonstrated an importance of cytochrome P-450 epoxygenase pathway of arachidonic acids metabolism for the pathogenesis of essential hypertension (EH). The present study was designed to investigate whether common single-nucleotide polymorphisms (SNP) of CYP2C gene subfamily such as CYP2C8 (rs7909236 and rs1934953), CYP2C9 (rs9332242), and CYP2C19 (rs4244285) are associated with susceptibility to EH in Russian population. A total of 816 unrelated Russian individuals comprising 425 EH patients and 391 normotensive controls were included into the study...
May 17, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28511989/biased-agonism-antagonism-at-the-angii-at1-receptor-implications-for-adrenal-aldosterone-production-and-cardiovascular-therapy
#13
REVIEW
Jennifer Maning, Shmuel Negussie, Michelle A Clark, Anastasios Lymperopoulos
Many of the effects of angiotensin II (AngII), including adrenocortical aldosterone release, are mediated by the AngII type 1 receptor (AT1R), a receptor with essential roles in cardiovascular homeostasis. AT1R belongs to the G protein-coupled receptor (GPCR) superfamily, mainly coupling to the Gq/11 type of G proteins. However, it also signals through βarrestins, oftentimes in parallel to eliciting G protein-dependent signaling. This has spurred infinite possibilities for cardiovascular pharmacology, since various beneficial effects are purportedly exerted by AT1R via βarrestins, unlike AT1R-induced G protein-mediated pathways that usually result in damaging cardiovascular effects, including hypertension and aldosterone elevation...
May 13, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28511366/gender-linked-metric-analysis-of-portal-vein-a-sonographic-appraisal
#14
Shikha Singh, Arvind Kumar Pankaj, Anita Rani, Pradeep Kumar Sharma, Puja Chauhan
INTRODUCTION: Portal hypertension is one of the most mystifying and disconcerting abdominal ailment. Ultrasonography (USG) is an effective diagnostic tool for its prompt management. Knowledge of normal calibre of portal vein in a local setting is essential as literature reports contrasting values in different regions. It helps in early diagnosis of portal hypertension even before it is clinically manifested thereby assisting clinicians and interventional radiologists in pertinent management...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28508064/fibulin-4-is-essential-for-maintaining-arterial-wall-integrity-in-conduit-but-not-muscular-arteries
#15
Carmen M Halabi, Thomas J Broekelmann, Michelle Lin, Vivian S Lee, Mon-Li Chu, Robert P Mecham
Homozygous or compound heterozygous mutations in fibulin-4 (FBLN4) lead to autosomal recessive cutis laxa type 1B (ARCL1B), a multisystem disorder characterized by significant cardiovascular abnormalities, including abnormal elastin assembly, arterial tortuosity, and aortic aneurysms. We sought to determine the consequences of a human disease-causing mutation in FBLN4 (E57K) on the cardiovascular system and vascular elastic fibers in a mouse model of ARCL1B. Fbln4(E57K/E57K) mice were hypertensive and developed arterial elongation, tortuosity, and ascending aortic aneurysms...
May 2017: Science Advances
https://www.readbyqxmd.com/read/28507980/hypertension-in-the-pediatric-kidney-transplant-recipient
#16
REVIEW
Olga Charnaya, Asha Moudgil
Hypertension after kidney transplant is a frequent occurrence in pediatric patients. It is a risk factor for graft loss and contributes to the significant burden of cardiovascular disease (CVD) in this population. The etiology of posttransplant hypertension is multifactorial including donor factors, recipient factors, medications, and lifestyle factors similar to those prevalent in the general population. Ambulatory blood pressure monitoring has emerged as the most reliable method for measuring hypertension in pediatric transplant recipients, and many consider it to be essential in the care of these patients...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28505066/routine-urinary-detection-of-antihypertensive-drugs-for-systematic-evaluation-of-adherence-to-treatment-in-hypertensive-patients
#17
Idir Hamdidouche, Vincent Jullien, Pierre Boutouyrie, Eliane Billaud, Michel Azizi, Stéphane Laurent
BACKGROUND: Nonadherence to antihypertensive therapy is an important cause of poor blood pressure control. However, to date, few effective and accurate tools exist to routinely evaluate drug nonadherence. METHODS: In this observational study, performed under conditions of routine clinical practice, we included 174 patients (aged 67 ± 11 years) with treated essential hypertension who attended the outpatient hypertension clinic of a university hospital. Adherence to antihypertensive treatment was measured by using ultraperformance liquid chromatography-tandem mass spectrometry in spot urine at the time of clinical appointment and blood pressure measurement...
May 12, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28503115/is-mania-the-hypertension-of-the-mood-discussion-of-a-hypothesis
#18
REVIEW
Zoltán Rihmer, Xénia Gonda, Péter Döme
Beyond both being biphasic/bidirectional disorders (hypo)mania and essential hypertension share a surprising number of similarities and an overlap between their genetics, biological background, underlying personality and temperamental factors, precipitating factors, comorbidity and response to treatment, indicating a possibly partially shared biological background. Based on theoretical knowledge, similarities related to characteristics, manifestation and course, and the results of pharmacological studies related to the effects and side effects of pharmacotherapies used in the treatment of these two distinct disorders, the authors outline a hypothesis discussing the similar origins of these two phenomena and thus mania being the hypertension of mood in memory of Athanasios Koukopoulos, one of the greatest researchers and theoreticists of mania of all time...
April 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28500648/bergmann-glia-translocation-a-new-disease-marker-for-vanishing-white-matter-identifies-therapeutic-effects-of-guanabenz-treatment
#19
Stephanie Dooves, Marianna Bugiani, Lisanne Wisse, Truus E M Abbink, Marjo S van der Knaap, Vivi M Heine
Vanishing White Matter (VWM) is a devastating leukoencephalopathy without effective treatment options. Patients have mutations in the EIF2B1-5 genes, encoding the five subunits of eIF2B, a guanine exchange factor that is an important regulator of protein translation. We recently developed mouse models for VWM that replicate the human disease. To study disease improvement after treatment in these mice it is essential to have sensitive biomarkers related to disease stage. The Bergmann glia of the cerebellum, an astrocytic subpopulation, translocate into the molecular layer in symptomatic VWM mice and patients...
May 13, 2017: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/28499586/-gemcitabine-induced-thrombotic-microangiopathy-can-we%C3%A2-improve-screening-and%C3%A2-treatment
#20
Xavier Charmetant, Anne Jolivot, Thomas Fournier, Jean-Charles Puthet, Philippe Cassier, Sandrine Lemoine, Laurent Juillard
Thrombotic microangiopathy is a rare but severe complication of treatment with gemcitabine. Its prevalence increases because gemcitabine's indications are growing. We report four cases, which presented with common clinical and biological manifestations, i.e. high blood pressure, proteinuria and increasing plasmatic creatinine level. However, severity was not similar, hemodialysis was inconstant. There is no consensus on treatment for this condition. Stopping gemcitabine is essential. Treatment was dispensed considering the severity of the presentation: plasma exchange therapy of variable outcome, and eculizumab, which was efficient when used...
May 9, 2017: Néphrologie & Thérapeutique
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