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https://www.readbyqxmd.com/read/29057680/the-association-of-renin-angiotensinogen-system-genes-polymorphisms-and-idiopathic-recurrent-pregnancy-loss
#1
Mohammad Mehdi Heidari, Mozhgan Sheikholeslami, Mahdieh Yavari, Mehri Khatami, Seyed Mohammad Seyedhassani
The most common complication of pregnancy is idiopathic recurrent pregnancy loss (RPL). To identify the contribution of gene polymorphisms to this condition, we evaluated the association between RPL and the angiotensinogen (AGT), angiotensin receptor 1 (AGTR1) and Angiotensinogen converting enzyme (ACE). In this case-control study, the frequency of AGT (rs4762 and rs699), AGTR1 (rs5186) and ACE insertion/deletion (rs4340) polymorphisms in 202 idiopathic RPL women was compared with 210 women with no history of abortion, using tetra-primer ARMS-PCR...
October 23, 2017: Human Fertility: Journal of the British Fertility Society
https://www.readbyqxmd.com/read/29039830/-role-of-agtr1-a-c-polymorphism-in-the-development-of-atrial-fibrillation
#2
A V Kuskaeva, S Yu Nikulina, A A Chernova, N V Aksyutina, A P Kuskaev, I I Cherkashina
AIM: To investigate the AGTR1 A/C polymorphism associated with atrial fibrillation (AF) to form risk groups among patients who are prone to this disease. SUBJECTS AND METHODS: 90 probands with a confirmed diagnosis of AF and their 144 first-, second-, and third-degree relatives were examined. These families made up a study group. A control group was formed of 100 apparently healthy individuals without a history of cardiovascular diseases. Collection of medical history data and complaints, electrocardiography, electrocardiogram monitoring, as well as molecular genetic analysis, thyroid hormone tests were done in all the patients...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28915321/regulation-and-functions-of-the-renin-angiotensin-system-in-white-and-brown-adipose-tissue
#3
Mandana Pahlavani, Nishan S Kalupahana, Latha Ramalingam, Naima Moustaid-Moussa
The renin angiotensin system (RAS) is a major regulator of blood pressure, fluid, and electrolyte homeostasis. RAS precursor angiotensinogen (Agt) is cleaved into angiotensin I (Ang I) and II (Ang II) by renin and angiotensin converting enzyme (ACE), respectively. Major effects of Ang II, the main bioactive peptide of this system, is mediated by G protein coupled receptors, Angiotensin Type 1 (AGTR1, AT1R) and Type 2 (AGTR2, AT2R) receptors. Further, the discovery of additional RAS peptides such as Ang 1-7 generated by the action of another enzyme ACE2 identified novel functions of this complex system...
September 12, 2017: Comprehensive Physiology
https://www.readbyqxmd.com/read/28903744/renin-angiotensin-system-gene-polymorphisms-and-high-blood-pressure-in-lithuanian-children-and-adolescents
#4
Sandrita Simonyte, Renata Kuciene, Jurate Medzioniene, Virginija Dulskiene, Vaiva Lesauskaite
BACKGROUND: Epidemiological studies have demonstrated the influence of environmental factors on HBP in the population of Lithuanian children, although the role of genetic factors in hypertension has not yet been studied. The aim of this study was to assess the distribution of AGTR1, AGT, and ACE genotypes in the Lithuanian child population and to determine whether these genotypes have an impact on HBP in childhood. METHODS: This cross-sectional study enrolled 709 participants aged 12-15 years...
September 13, 2017: BMC Medical Genetics
https://www.readbyqxmd.com/read/28792482/association-and-interaction-effect-of-agtr1-and-agtr2-gene-polymorphisms-with-dietary-pattern-on-metabolic-risk-factors-of-cardiovascular-disease-in-malaysian-adults
#5
Roseline Wai Kuan Yap, Yoshihiro Shidoji, Wai Sum Yap, Motofumi Masaki
Gene-diet interaction using a multifactorial approach is preferred to study the multiple risk factors of cardiovascular disease (CVD). This study examined the association and gene-diet interaction effects of the angiotensin II type 1 receptor (AGTR1) gene (rs5186), and type 2 receptor (AGTR2) gene (rs1403543) polymorphisms on metabolic risk factors of CVD in Malaysian adults. CVD parameters (BMI, blood pressure, glycated hemoglobin, total cholesterol (TC), triglycerides, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol (HDL-C), and TC/HDL-C ratio), and constructed dietary patterns "vegetables, fruits, and soy diet" (VFSD), and "rice, egg, and fish diet" (REFD) were obtained from previous studies...
August 9, 2017: Nutrients
https://www.readbyqxmd.com/read/28791183/alterations-in-gene-expression-of-components-of-the-renin-angiotensin-system-and-its-related-enzymes-in-lung-cancer
#6
Benjamin Goldstein, Malav Trivedi, Robert C Speth
OBJECTIVES: The study assessed the existence and significance of associations between the expression of fifteen renin-angiotensin system component genes and lung adenocarcinoma. MATERIALS AND METHODS: NCBI's built-in statistical tool, GEO2R, was used to calculate Student's t-tests for the associations found in a DNA expression study of adenocarcinoma and matched healthy lung tissue samples. The raw data was processed with GeneSpring™ and then used to generate figures with and without Sidak's multiple comparison correction...
2017: Lung Cancer International
https://www.readbyqxmd.com/read/28770234/snps-linkage-disequilibrium-and-chronic-mountain-sickness-in-tibetan-chinese
#7
Norman E Buroker, Xue-Han Ning, Zhao-Nian Zhou, Kui Li, Wei-Jun Cen, Xiu-Feng Wu, Wei-Zhong Zhu, C Ronald Scott, Shi-Han Chen
Chronic mountain sickness (CMS) is estimated at 1.2% in Tibetans living at the Qinghai-Tibetan Plateau. Eighteen single-nucleotide polymorphisms (SNPs) from nine nuclear genes that have an association with CMS in Tibetans have been analyzed by using pairwise linkage disequilibrium (LD). The SNPs included are the angiotensin-converting enzyme (rs4340), the angiotensinogen (rs699), and the angiotensin II type 1 receptor (AGTR1) (rs5186) from the renin-angiotensin system. A low-density lipoprotein apolipoprotein B (rs693) SNP was also included...
2017: Hypoxia
https://www.readbyqxmd.com/read/28530466/angiotensin-type-1-receptor-a1166c-polymorphism-and-systemic-lupus-erythematosus-correlation-with-cellular-immunity-and-oxidative-stress-markers
#8
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
#9
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
#10
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...
November 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
#11
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
#12
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
#13
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
#14
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
#15
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...
April 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28271690/genetic-variation-in-the-renin-angiotensin-system-and-diabetic-nephropathy-in-the-tunisian-population
#16
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
#17
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
#18
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
#19
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
#20
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
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