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https://www.readbyqxmd.com/read/28530466/angiotensin-type-1-receptor-a1166c-polymorphism-and-systemic-lupus-erythematosus-correlation-with-cellular-immunity-and-oxidative-stress-markers
#1
H Baniamerian, F Bahrehmand, A Vaisi-Raygani, Z Rahimi, T Pourmotabbed
Angiotensin II, one of the rennin-angiotensin system components, is important in the cardiovascular hemodynamic and plays an important role in the development of cardiovascular disease in systemic lupus erythematosus (SLE) patients. The angiotensin II, through interaction with angiotensin II type 1 receptor (AGTR1), promotes proliferation, inflammation and fibrosis. The single nucleotide polymorphism of the AGTR1 (dbSNP: rs5186) gene can be associated with development and progression of SLE disease. The aims of this study were to compare the frequency of AGTR1 rs5186 in SLE patients with healthy individuals and to evaluate possible association between AGTR1 A1166C gene polymorphism and serum level of lipids, neopterin and malondialdehyde in SLE patients from a population of West Iran...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28506960/familial-analysis-of-epistatic-and-sex-dependent-association-of-genes-of-the-renin-angiotensin-aldosterone-system-and-blood-pressure
#2
Katrina J Scurrah, Angela Lamantia, Justine A Ellis, Stephen B Harrap
BACKGROUND: Renin-angiotensin-aldosterone system genes have been inconsistently associated with blood pressure, possibly because of unrecognized influences of sex-dependent genetic effects or gene-gene interactions (epistasis). METHODS AND RESULTS: We tested association of systolic blood pressure with single-nucleotide polymorphisms (SNPs) at renin (REN), angiotensinogen (AGT), angiotensin-converting enzyme (ACE), angiotensin II type 1 receptor (AGTR1), and aldosterone synthase (CYP11B2), including sex-SNP or SNP-SNP interactions...
June 2017: Circulation. Cardiovascular Genetics
https://www.readbyqxmd.com/read/28425437/are-genetic-polymorphisms-in-the-renin-angiotensin-aldosterone-system-associated-with-essential-hypertension-evidence-from-genome-wide-association-studies
#3
REVIEW
L-D Ji, J-Y Li, B-B Yao, X-B Cai, Q-J Shen, J Xu
In candidate gene era, dozens of single-nucleotide polymorphisms (SNPs) within renin-angiotensin-aldosterone system (RAAS) have been reported to be significantly associated with hypertension. However, the unbiased genome-wide association studies (GWAS) rarely identified the SNPs within RAAS were associated with hypertension or blood pressure (BP) traits. In order to figure out whether genetic polymorphisms of RAAS are really associated with hypertension, we systemically searched the GWAS Catalogue and identified all the known RAAS genes and relevant diseases/traits...
April 20, 2017: Journal of Human Hypertension
https://www.readbyqxmd.com/read/28416734/the-angiotensin-receptor-blocker-losartan-inhibits-mammary-tumor-development-and-progression-to-invasive-carcinoma
#4
Rhiannon Coulson, Seng H Liew, Angela A Connelly, Nicholas S Yee, Siddhartha Deb, Beena Kumar, Ana C Vargas, Sandra A O'Toole, Adam C Parslow, Ashleigh Poh, Tracy Putoczki, Riley J Morrow, Mariah Alorro, Kyren A Lazarus, Evie F W Yeap, Kelly L Walton, Craig A Harrison, Natalie J Hannan, Amee J George, Colin D Clyne, Matthias Ernst, Andrew M Allen, Ashwini L Chand
Drugs that target the Renin-Angiotensin System (RAS) have recently come into focus for their potential utility as cancer treatments. The use of Angiotensin Receptor Blockers (ARBs) and Angiotensin-Converting Enzyme (ACE) Inhibitors (ACEIs) to manage hypertension in cancer patients is correlated with improved survival outcomes for renal, prostate, breast and small cell lung cancer. Previous studies demonstrate that the Angiotensin Receptor Type I (AT1R) is linked to breast cancer pathogenesis, with unbiased analysis of gene-expression studies identifying significant up-regulation of AGTR1, the gene encoding AT1R in ER+ve/HER2-ve tumors correlating with poor prognosis...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28381821/longitudinal-data-analysis-for-rare-variants-detection-with-penalized-quadratic-inference-function
#5
Hongyan Cao, Zhi Li, Haitao Yang, Yuehua Cui, Yanbo Zhang
Longitudinal genetic data provide more information regarding genetic effects over time compared with cross-sectional data. Coupled with next-generation sequencing technologies, it becomes reality to identify important genes containing both rare and common variants in a longitudinal design. In this work, we adopted a weighted sum statistic (WSS) to collapse multiple variants in a gene region to form a gene score. When multiple genes in a pathway were considered together, a penalized longitudinal model under the quadratic inference function (QIF) framework was applied for efficient gene selection...
April 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28376480/hypomethylation-of-the-angiotensin-ii-type-i-receptor-agtr1-gene-along-with-environmental-factors-increases-the-risk-for-essential-hypertension
#6
Jiabing Lin, Shaowei Lin, Yihai Wu, Xiaoxia Wang, Siying Wu, Huangyuan Li
OBJECTIVES: The present study aimed to evaluate the hypertension status of community residents, analyze environmental and epigenetic factors, and propose prevention measures for hypertension. METHODS: In our study, different methylation levels were distinguished utilizing melting temperature (Tm) values in both the case and the control group. Multiple logistic regression analysis was used to estimate the risk of having essential hypertension (EH) between hypertensive and nonhypertensive participants...
2017: Cardiology
https://www.readbyqxmd.com/read/28376078/the-expression-of-renin-angiotensin-aldosterone-axis-components-in-infantile-hemangioma-tissue-and-the-impact-of-propranolol-treatment
#7
James R Dornhoffer, Ting Wei, Haihong Zhang, Emily Miller, Mario A Cleves, Gresham T Richter
BackgroundPropranolol's mechanism of action for controlling infantile hemangioma (IH) remains unclear. We hypothesize that this nonselective beta antagonist downregulates renin-angiotensin-aldosterone (RAA) axis components, preventing angiogenic substrate induction of IH.MethodsIH tissue and serum were collected from children with propranolol-treated or -untreated IH during surgery. Normal skin and serum from demographically matched children were used as controls. Real-time PCR and western blot quantified RAA components in proliferative (n=10), involuting (n=10), propranolol-treated (n=12) IH, and normal specimens (n=11)...
July 2017: Pediatric Research
https://www.readbyqxmd.com/read/28339549/further-investigation-of-a-quantitative-trait-locus-for-ascites-on-chromosome-9-in-broiler-chicken-lines
#8
Shatovisha Dey, Sriram Krishna, Nicholas B Anthony, Douglas D Rhoads
Previously, we reported a genome wide association study (GWAS) that had shown association of a region between 11.8 and 13.6 Mbp on chromosome 9 with ascites phenotype in broilers. We had used microsatellite loci to demonstrate an association of particular genotypes for this region with ascites in experimental ascites lines and commercial broiler breeder lines. We identified two potential candidate genes, AGTR1 and UTS2D, within that chromosomal region for mediating the quantitative effect. We have now extended our analysis using SNPs for these genes to assess association with resistance or susceptibility to ascites in these same broiler lines...
October 10, 2016: Poultry Science
https://www.readbyqxmd.com/read/28271690/genetic-variation-in-the-renin-angiotensin-system-and-diabetic-nephropathy-in-the-tunisian-population
#9
Amira Moussa, Sonia Triki, Haithem Hamdouni, Ons Fekih, Marwa Ajmi, Ibtihel B hajMbarek, Afifa Koubaa, Fadoua Neffati, Asma Omezzine, Med-Fadhel Najjar, Ali Bouslama
BACKGROUND: The aim of this study was to evaluate the association of ACE, angiotensinogen (AGT) and angiotensin II receptor type I (AGTR1) polymorphisms with diabetic nephropathy (DN) in Tunisians. METHODS: The study population comprised 236 type 2 diabetic patients: with nephropathy (DN = 47) and without nephropathy (DM = 189). Genotyping of ACE-I/D-rs1799752, ACE-rs4343G>A, AGT-rs5050A>C, AGT-rs 4762C>T, AGT-rs699A>G, and AGTR1-rs5186A>C was performed by PCR-RFLP...
March 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28178311/an-integrative-study-on-the-impact-of-highly-differentially-methylated-genes-on-expression-and-cancer-etiology
#10
Bugra Ozer, Ugur Sezerman
DNA methylation is an important epigenetic phenomenon that plays a key role in the regulation of expression. Most of the studies on the topic of methylation's role in cancer mechanisms include analyses based on differential methylation, with the integration of expression information as supporting evidence. In the present study, we sought to identify methylation-driven patterns by also integrating protein-protein interaction information. We performed integrative analyses of DNA methylation, expression, SNP and copy number data on paired samples from six different cancer types...
2017: PloS One
https://www.readbyqxmd.com/read/28135625/histone-demethylase-kdm3a-a-novel-regulator-of-vascular-smooth-muscle-cells-controls-vascular-neointimal-hyperplasia-in-diabetic-rats
#11
Jing Chen, Jing Zhang, Jian Yang, Lin Xu, Qi Hu, Changwu Xu, Shuo Yang, Hong Jiang
BACKGROUND AND AIMS: Deregulation of histone demethylase KDM3a, an important regulator for H3K9 methylation, is correlated with obesity and abnormal metabolism in rodent models. However, the function of KDM3a in vascular remodeling under diabetic condition is unknown. METHODS: Adenoviruses expressing KDM3a and lentiviruses expressing KDM3a-targeting siRNA were generated to study the role of KDM3a both in vivo and in vitro. The carotid artery balloon injury model was established in diabetic SD rats to evaluate the significance of KDM3a in vascular injury...
February 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28120210/renin-angiotensin-system-gene-polymorphisms-as-potential-modifiers-of-hypertrophic-and-dilated-cardiomyopathy-phenotypes
#12
Bindu Rani, Amit Kumar, Ajay Bahl, Rajni Sharma, Rishikesh Prasad, Madhu Khullar
The renin-angiotensin (RAS) pathway has an important role in the etiology of heart failure and given the importance of RAS as a therapeutic target in various cardiomyopathies, genetic polymorphisms in the RAS genes may modulate the risk and severity of disease in cardiomyopathy patients. In the present study, we examined the association of RAS pathway gene polymorphisms, angiotensin converting enzyme (ACE), angiotensinogen (AGT), and angiotensin receptor type 1 (AGTR1) with risk and disease severity in Asian Indian idiopathic cardiomyopathy patients...
March 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28073349/the-mir-34a-5p-promotes-the-multi-chemoresistance-of-osteosarcoma-via-repression-of-the-agtr1-gene
#13
Youguang Pu, Fangfang Zhao, Yinpeng Li, Mingda Cui, Haiyan Wang, Xianghui Meng, Shanbao Cai
BACKGROUND: Chemoresistance hinders the curative cancer chemotherapy. MicroRNAs (miRNAs) are key players in diverse biological processes including the chemoresistance of cancers. METHODS: A RNA-seq-based miR-omic analysis of osteosarcoma (OS) cells was performed to detect the levels of miR-34a-5p. Bioinformatics analysis revealed that AGTR1 is one of the target genes of miR-34a-5p. The mRNA and protein levels of AGTR1 were detected in both the miR-34a-5p-mimic transfected G-292 and miR-34a-5p-antagomiR transfected SJSA-1 cells...
January 10, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28011284/phosphorylation-of-tudor-sn-a-novel-substrate-of-jnk-is-involved-in-the-efficient-recruitment-of-tudor-sn-into-stress-granules
#14
Chao Su, Xingjie Gao, Wendong Yang, Yali Zhao, Xue Fu, Xiaoteng Cui, Chunyan Zhang, Lingbiao Xin, Yuanyuan Ren, Lixin Li, Wenqing Shui, Xi Yang, Minxin Wei, Jie Yang
Posttranslational modifications of certain stress granule (SG) proteins are closely related to the assembly of SGs, a type of cytoplasmic foci structure. Our previous studies revealed that the Tudor staphylococcal nuclease (Tudor-SN) protein participates in the formation of SGs. However, the functional significance of potential Tudor-SN modifications during stress has not been reported. In this study, we demonstrated that the Tudor-SN protein was phosphorylated at threonine 103 (T103) upon stimulation with arsenite...
December 21, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27994858/renal-tubular-dysgenesis-antenatal-ultrasound-scanning-and-molecular-investigations-in-a-saudi-arabian-family
#15
Mohamed H Al-Hamed, Wesam Kurdi, Nada Alsahan, Qaamariya Ambosaidi, Maha Tulbah, John A Sayer
Autosomal recessive renal tubular dysgenesis (RTD) is a rare lethal disease affecting renal development before birth. RTD is manifested by anuria and severe hypotension resulting in oligohydramnios and birth defects known as Potter's syndrome. Homozygous or compound heterozygous mutations in genes encoding components of the renin-angiotensin system (ACE, AGT, AGTR1 and REN) have been reported to cause RTD. A consanguineous family with a history of multiple stillbirths was investigated using prenatal ultrasound and molecular genetic analysis of an affected foetus...
December 2016: Clinical Kidney Journal
https://www.readbyqxmd.com/read/27988909/estimation-of-the-relationship-between-the-polymorphisms-of-selected-genes-ace-agtr1-tgf%C3%AE-1-and-gnb3-with-the-occurrence-of-primary-vesicoureteral-reflux
#16
Marcin Życzkowski, Joanna Żywiec, Krzysztof Nowakowski, Andrzej Paradysz, Władyslaw Grzeszczak, Janusz Gumprecht
PURPOSE: Etiopathogenesis of VUR is composite and not fully understood. Many data indicate the importance of genetic predisposition. The aim of this study was to establish the relationship of selected polymorphisms: 14094 polymorphism of the ACE, polymorphism rs1800469 of TGFβ-1, rs5443 gene polymorphism of the GNB3 and receptor gene polymorphism rs5186 type 1 AGTR1 with the occurrence of the primary vesicoureteral reflux. MATERIAL: The study included 190 children: 90 with the primary VUR confirmed with the voiding cystourethrogram and excluded secondary VUR and a control group of 100 children without a history of the diseases of the genitourinary tract...
March 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/27956412/expression-of-renin-angiotensin-system-ras-components-in-endometrial-cancer
#17
Sarah J Delforce, Eugenie R Lumbers, Celine Corbisier de Meaultsart, Yu Wang, Anthony Proietto, Geoffrey Otton, Jim Scurry, Nicole M Verrills, Rodney J Scott, Kirsty G Pringle
A dysfunctional endometrial renin-angiotensin system (RAS) could aid the growth and spread of endometrial cancer. To determine if the RAS is altered in endometrial cancer, we measured RAS gene expression and protein levels in 30 human formalin-fixed, paraffin-embedded (FFPE) endometrioid carcinomas and their adjacent endometrium. All components of the RAS were expressed in most tumours and in adjacent endometrium; mRNA levels of (pro)renin receptor (ATP6AP2), angiotensin II type 1 receptor (AGTR1), angiotensin-converting enzyme (ACE1) and angiotensin-converting enzyme 2 (ACE2) mRNA levels were greater in tumour tissue than adjacent non-cancerous endometrium (P = 0...
January 2017: Endocrine Connections
https://www.readbyqxmd.com/read/27940662/deep-targeted-exon-sequencing-reveals-renal-polymorphisms-associate-with-postexercise-hypotension-among-african-americans
#18
Linda S Pescatello, Elizabeth D Schifano, Garrett I Ash, Gregory A Panza, Lauren Lamberti, Ming-Hui Chen, Ved Deshpande, Amanda Zaleski, Paulo Farinatti, Beth A Taylor, Paul D Thompson
We found variants from the Angiotensinogen-Converting Enzyme (ACE), Angiotensin Type 1 Receptor (AGTR1), Aldosterone Synthase (CYP11B2), and Adducin (ADD1) genes exhibited intensity-dependent associations with the ambulatory blood pressure (BP) response following acute exercise, or postexercise hypotension (PEH). In a validation cohort, we sequenced exons from these genes for their associations with PEH Obese (30.9 ± 3.6 kg m(-2)) adults (n = 23; 61% African Americans [AF], 39% Caucasian) 42.0 ± 9...
October 2016: Physiological Reports
https://www.readbyqxmd.com/read/27936341/single-nucleotide-polymorphism-of-adiponectin-276-g-t-is-associated-with-the-susceptibility-to-essential-hypertension-in-a-turkish-population
#19
Ayşe Kevser Demir, Süheyla Uzun Kaya, Şafak Şahin, İsmail Benli, İlknur Bütün, Ertuğrul Erken, Turker Tasliyurt
BACKGROUND: It is well known that arterial stiffness is associated with hypertension. Recent studies have shown that adiponectin +276 G/T, ACE I/D, AGTR1 A1166C, and eNOS E298D polymorphisms are likely to be risk factors for arterial stiffness. In this study, we aimed to investigate possible associations between these single-nucleotide polymorphisms (SNPs) and essential hypertension in a Turkish population. METHODS: The study population consisted of 170 patients who were diagnosed with essential hypertension and 170 sex- and age-matched controls...
2016: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/27923785/genetic-determination-of-the-vascular-reactions-in-humans-in-response-to-the-diving-reflex
#20
Tatiana I Baranova, Dmitrii N Berlov, Oleg S Glotov, Ekaterina A Korf, Alexey D Minigalin, Alla V Mitrofanova, Ildus I Ahmetov, Andrey S Glotov
The purpose of this study was to investigate the genetic mechanisms of the defense vascular reactions in response to the diving reflex in humans with polymorphisms in the genes ADBR2, ACE, AGTR1, BDKRB2, and REN We hypothesized that protective vascular reactions, in response to the diving reflex, are genetically determined and are distinguished in humans with gene polymorphisms of the renin-angiotensin and kinin-bradykinin system. A total of 80 subjects (19 ± 1.4 yr) participated in the study. The intensity of the vascular response was estimated using photoplethysmogram...
March 1, 2017: American Journal of Physiology. Heart and Circulatory Physiology
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