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https://www.readbyqxmd.com/read/28073349/the-mir-34a-5p-promotes-the-multi-chemoresistance-of-osteosarcoma-via-repression-of-the-agtr1-gene
#1
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
#2
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
#3
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
#4
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...
December 17, 2016: International Urology and Nephrology
https://www.readbyqxmd.com/read/27956412/expression-of-renin-angiotensin-system-ras-components-in-endometrial-cancer
#5
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
#6
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
#7
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
#8
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 years) participated in the study. The intensity of the vascular response was estimated using photopletismogram...
December 6, 2016: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/27910864/renin-angiotensin-aldosterone-system-gene-polymorphisms-in-gestational-hypertension-and-preeclampsia-a-case-control-gene-association-study
#9
Xun Li, Hongzhuan Tan, Shujin Zhou, Shimin Hu, Tianyi Zhang, Yangfen Li, Qianru Dou, Zhiwei Lai, Fenglei Chen
Pregnancy-induced hypertension (PIH, including preeclampsia [PE] and gestational hypertension [GH]) and cardiovascular diseases (CVDs) have some metabolic changes and risk factors in common. Many studies have reported associations between single nucleotide polymorphisms (SNPs) of renin-angiotensin-aldosterone system (RAAS) genes and CVDs (particularly hypertension), and their findings have provided candidate SNPs for research on genetic correlates of PIH. We explored the association between hypertension-related RAAS SNPs and PIH in a Chinese population...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27864612/secretory-products-from-epicardial-adipose-tissue-from-patients-with-type-2-diabetes-impair-mitochondrial-%C3%AE-oxidation-in-cardiomyocytes-via-activation-of-the-cardiac-renin-angiotensin-system-and-induction-of-mir-208a
#10
Marcel Blumensatt, Pia Fahlbusch, Rebecca Hilgers, Marlies Bekaert, Daniella Herzfeld de Wiza, Payam Akhyari, Johannes B Ruige, D Margriet Ouwens
Secretory products from epicardial adipose tissue (EAT) from patients with type 2 diabetes (T2D) impair cardiomyocyte function. These changes associate with alterations in miRNA expression, including the induction of miR-208a. Recent studies suggest that activation of the cardiac-specific renin-angiotensin system (RAS) may affect cardiac energy metabolism via induction of miR-208a. This study investigated whether cardiomyocyte dysfunction induced by conditioned media (CM) from EAT-T2D involves activation of the RAS/miR-208a pathway...
January 2017: Basic Research in Cardiology
https://www.readbyqxmd.com/read/27813367/lps-but-not-angiotensin-ll-lnduces-direct-pro-lnflammatory-effects-in-cultured-mouse-arteries-and-human-endothelial-and-vascular-smooth-muscle-cells
#11
Emilie M Outzen, Marina Zaki, Rahila Mehryar, Bahareh Abdolalizadeh, Waseem Sajid, Harrie C M Boonen, Anette Sams, Majid Sheykhzade
Angiotensin II (Ang II) might induce pro-inflammatory effects directly on the vascular wall independently of its hemodynamic effects. The aim of our study was to investigate the putative direct pro-inflammatory and vasomotor effects of Ang II and compare to those of LPS in mouse isolated mesenteric resistance-sized arteries (MRA) supported by experiments in cultured human primary endothelial and vascular smooth muscle cells. Results showed that 24-hr organ culture of mouse MRA with 10 nM Ang II had, unlike 100 ng/mL LPS, no effects on IL-6 or MCP-1 secretion, VCAM1 mRNA expression or endothelial function, while Ang II significantly decreased maximal vasomotor responses to phenylephrine...
November 4, 2016: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/27775788/local-bone-marrow-renin-angiotensin-system-in-the-genesis-of-leukemia-and-other-malignancies
#12
I C Haznedaroglu, U Y Malkan
The existence of a local renin-angiotensin system (RAS) specific to the hematopoietic bone marrow (BM) microenvironment had been proposed two decades ago. Most of the RAS molecules including ACE, ACE2, AGT, AGTR1, AGTR2, AKR1C4, AKR1D1, ANPEP, ATP6AP2, CMA1, CPA3, CTSA, CTSD, CTSG, CYP11A1, CYP11B1, CYP11B2, CYP17A1, CYP21A2, DPP3, EGFR, ENPEP, GPER, HSD11B1, HSD11B2, IGF2R, KLK1, LNPEP, MAS1, MME, NR3C1, NR3C2, PREP, REN, RNPEP, and THOP1 are locally present in the BM microenvironment. Local BM RAS peptides control the hematopoietic niche, myelopoiesis, erythropoiesis, thrombopoiesis and the development of other cellular lineages...
October 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/27759448/toward-optimal-set-of-single-nucleotide-polymorphism-investigation-before-ivf
#13
A V Ivanov, A G Dedul, Y N Fedotov, E V Komlichenko
BACKGROUND: At present, the patient preparation for IVF needs to undergo a series of planned tests, including the genotyping of single nucleotide polymorphism (SNP) alleles of some genes. In former USSR countries, such investigation was not included in overwhelming majority of health insurance programs and paid by patient. In common, there are prerequisites to the study of more than 50 polymorphisms. An important faced task is to determine the optimal panel for SNP genotyping in terms of price/number of SNP...
October 2016: Gynecological Endocrinology
https://www.readbyqxmd.com/read/27756246/identification-of-potential-candidate-genes-for-hypertensive-nephropathy-based-on-gene-expression-profile
#14
Zhi Chen, Hao Wu, Guohua Wang, Ye Feng
BACKGROUND: This study was aimed to explore the molecular mechanisms of hypertensive nephropathy (HTN). METHODS: Gene expression profile of GSE37460, which based on 27 healthy living donor samples (HTN group) and 15 hypertensive nephropathy samples (control group), were downloaded from Gene Expression Omnibus (GEO) database. The differentially expressed genes (DEGs) between two groups were identified. STRING database was used to reveal protein-protein interaction (PPI) network of DEGs, followed by the functional enrichment analysis of the PPI network...
October 18, 2016: BMC Nephrology
https://www.readbyqxmd.com/read/27753954/os-08-04-epistatic-and-sex-dependent-association-analyses-of-genes-of-the-renin-angiotensin-aldosterone-system-and-blood-pressure-in-families
#15
Stephen Harrap, Katrina Scurrah, Angela Lamantia, Justine Ellis
OBJECTIVE: Genes encoding key elements of the renin-angiotensin-aldosterone system (RAAS) cascade have been previously but inconsistently associated with blood pressure. Sex-dependency might be important here and functional genetic polymorphisms might exhibit epistatic effects. DESIGN AND METHOD: We assessed variation in the genes encoding renin (REN), angiotensinogen (AGT), angiotensin converting enzyme (ACE), angiotensin II type 1 receptor (AGTR1) and aldosterone synthase (CYP11B2)...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27753829/sy-03-2-pathophysiologic-significance-of-non-coding-rna-in-hypertension
#16
Stephen Harrap
Genetic discovery in blood pressure is generally referenced in relation to protein-coding genes, despite the fact that genes less than 2% of the genome. Recent exploration of the DNA sequences between genes, once called "junk" DNA, has revealed a wealth of transcripts for RNA species that do not encode protein. These non-coding RNAs (ncRNAs) have emerged as dynamic managers of the business of the genome, able to coordinate the expression of genes in time and space to achieve the complexities of normal development and growth...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27732943/angiotensin-ii-receptor-1-gene-variants-are-associated-with-high-altitude-pulmonary-edema-risk
#17
Tianbo Jin, Yongchao Ren, Xikai Zhu, Xun Li, Yongri Ouyang, Xue He, Zhiying Zhang, Yuan Zhang, Longli Kang, Dongya Yuan
Previous studies demonstrated that Angiotensin II Receptor 1 (AGTR1) may play an important role in the development of high-altitude pulmonary edema. We envisaged a role for AGTR1 gene variants in the pathogenesis of HAPE and investigated their potential associations with HAPE in a Han Chinese population. We genotyped seven AGTR1 polymorphisms in 267 patients with diagnosed HAPE and 304 controls and evaluated their association with risk of HAPE. Statistically significant associations were found for the single nucleotide polymorphisms (SNPs) rs275651 (p = 0...
October 6, 2016: Oncotarget
https://www.readbyqxmd.com/read/27686559/evaluating-genomic-dna-extraction-methods-from-human-whole-blood-using-endpoint-and-real-time-pcr-assays
#18
Linda Koshy, A L Anju, S Harikrishnan, V R Kutty, V T Jissa, Irin Kurikesu, Parvathy Jayachandran, A Jayakumaran Nair, A Gangaprasad, G M Nair, P R Sudhakaran
The extraction of genomic DNA is the crucial first step in large-scale epidemiological studies. Though there are many popular DNA isolation methods from human whole blood, only a few reports have compared their efficiencies using both end-point and real-time PCR assays. Genomic DNA was extracted from coronary artery disease patients using solution-based conventional protocols such as the phenol-chloroform/proteinase-K method and a non-phenolic non-enzymatic Rapid-Method, which were evaluated and compared vis-a-vis a commercially available silica column-based Blood DNA isolation kit...
September 29, 2016: Molecular Biology Reports
https://www.readbyqxmd.com/read/27683672/vascular-mineralocorticoid-receptor-regulates-microrna-155-to-promote-vasoconstriction-and-rising-blood-pressure-with-aging
#19
Jennifer J DuPont, Amy McCurley, Ana P Davel, Joseph McCarthy, Shawn B Bender, Kwangseok Hong, Yan Yang, Jeung-Ki Yoo, Mark Aronovitz, Wendy E Baur, Demetra D Christou, Michael A Hill, Iris Z Jaffe
Hypertension is nearly universal yet poorly controlled in the elderly despite proven benefits of intensive treatment. Mice lacking mineralocorticoid receptors in smooth muscle cells (SMC-MR-KO) are protected from rising blood pressure (BP) with aging, despite normal renal function. Vasoconstriction is attenuated in aged SMC-MR-KO mice, thus they were used to explore vascular mechanisms that may contribute to hypertension with aging. MicroRNA (miR) profiling identified miR-155 as the most down-regulated miR with vascular aging in MR-intact but not SMC-MR-KO mice...
September 8, 2016: JCI Insight
https://www.readbyqxmd.com/read/27643349/os-08-04-epistatic-and-sex-dependent-association-analyses-of-genes-of-the-renin-angiotensin-aldosterone-system-and-blood-pressure-in-families
#20
Stephen Harrap, Katrina Scurrah, Angela Lamantia, Justine Ellis
OBJECTIVE: Genes encoding key elements of the renin-angiotensin-aldosterone system (RAAS) cascade have been previously but inconsistently associated with blood pressure. Sex-dependency might be important here and functional genetic polymorphisms might exhibit epistatic effects. DESIGN AND METHOD: We assessed variation in the genes encoding renin (REN), angiotensinogen (AGT), angiotensin converting enzyme (ACE), angiotensin II type 1 receptor (AGTR1) and aldosterone synthase (CYP11B2)...
September 2016: Journal of Hypertension
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