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https://www.readbyqxmd.com/read/29260398/integrated-bioinformatics-analysis-of-potential-biomarkers-for-prostate-cancer
#1
Jiufeng Tan, Xuefei Jin, Kaichen Wang
The aim was to expound the pathogenesis of prostate cancer and to identify the potentially biomarkers for prostate cancer (PC). DNA methylation microarray data GSE38240 containing 8 prostate cancer metastases and 4 normal prostate samples as well as gene expression profile data GSE26910 containing 6 prostate primary tumors and 6 normal samples were used. Differentially expressed genes (DEGs) and differently methylated sites of PC were screened and the regulatory network was constructed with DEGs-related transcription factors (TFs)...
December 19, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29259013/the-carma3-bcl10-malt1-signalosome-drives-nf-%C3%AE%C2%BAb-activation-and-promotes-aggressiveness-in-angiotensin-ii-receptor-positive-breast-cancer
#2
Prasanna Ekambaram, Jia-Ying Lloyd Lee, Nathaniel E Hubel, Dong Hu, Saigopalakrishna Yerneni, Phil G Campbell, Netanya Pollock, Linda R Klei, Vincent J Concel, Phillip C Delekta, Arul M Chinnaiyan, Scott A Tomlins, Daniel R Rhodes, Nolan Priedigkeit, Adrian V Lee, Steffi Oesterreich, Linda McAllister-Lucas, Peter C Lucas
The angiotensin II receptor AGTR1, which mediates vasoconstrictive and inflammatory signaling in vascular disease, is overexpressed aberrantly in some breast cancers. In this study, we established the significance of an AGTR1-responsive NF-κB signaling pathway in this breast cancer subset. We documented that AGTR1 overexpression occurred in the luminal A and B subtypes of breast cancer, was mutually exclusive of HER2 expression, and correlated with aggressive features that include increased lymph node metastasis, reduced responsiveness to neoadjuvant therapy, and reduced overall survival...
December 19, 2017: Cancer Research
https://www.readbyqxmd.com/read/29250329/effect-of-agtr1-and-bdkrb2-gene-polymorphisms-on-atorvastatin-metabolism-in-a-mexican-population
#3
Sarahí Herrera-González, Denisse Aideé Martínez-Treviño, Marcelino Aguirre-Garza, Magdalena Gómez-Silva, Hugo Alberto Barrera-Saldaña, Rafael Baltazar Reyes León-Cachón
Discrepancies in the response to drugs are partially due to polymorphisms in genes involved in drug metabolism and transport. The frequency, pattern and impact of these polymorphisms vary among populations. In the present study, the pharmacokinetics and pharmacogenetics of atorvastatin (ATV) in a Mexican population were investigated. The study cohort exhibited differing ATV metabolizing phenotypes, and in subsequent allelic discrimination assays, single nucleotide polymorphisms in the angiotensinogen, angiotensin II type 1 receptor (AGTR1) and bradykinin B2 receptor (BDKRB2) genes were genotyped and their effects on the pharmacokinetic parameters of ATV were assessed...
December 2017: Biomedical Reports
https://www.readbyqxmd.com/read/29192236/estrogen-attenuates-agtr1-expression-to-reduce-pancreatic-%C3%AE-cell-death-from-high-glucose
#4
Suwattanee Kooptiwut, Keerati Wanchai, Namoiy Semprasert, Chatchawan Srisawat, Pa-Thai Yenchitsomanus
Chronic exposure of pancreatic β-cells to high glucose levels results in β-cell dysfunction and death. These effects can be protected by estrogen. The local pancreatic renin-angiotensin system (RAS) has been shown as a novel pathological pathway of high-glucose-induced cell death. The effect of estrogen on pancreatic RAS is still unknown. This study examines whether estrogen protects against pancreatic β-cell death caused by glucotoxicity via a decrease in the pancreatic β-cell RAS pathway. When INS-1 cells were cultured in a high glucose medium, cell death was significantly higher than when the cells were cultured in a basal glucose medium; similarly, there were also higher levels of AGTR1 and p47 ph ° x mRNA, and protein expression...
November 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29057680/the-association-of-renin-angiotensinogen-system-genes-polymorphisms-and-idiopathic-recurrent-pregnancy-loss
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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