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https://www.readbyqxmd.com/read/28329018/a-unique-microrna-profile-in-end-stage-heart-failure-indicates-alterations-in-specific-cardiovascular-signaling-networks
#1
Sathyamangla V Naga Prasad, Manveen K Gupta, Zhong-Hui Duan, Venkata Suresh K Surampudi, Chang-Gong Liu, Ashwin Kotwal, Christine S Moravec, Randall C Starling, Dianne M Perez, Subha Sen, Qingyu Wu, Edward F Plow, Sadashiva Karnik
It is well established that the gene expression patterns are substantially altered in cardiac hypertrophy and heart failure, however, less is known about the reasons behind such global differences. MicroRNAs (miRNAs) are short non-coding RNAs that can target multiple molecules to regulate wide array of proteins in diverse pathways. The goal of the study was to profile alterations in miRNA expression using end-stage human heart failure samples with an aim to build signaling network pathways using predicted targets for the altered miRNA and to determine nodal molecules regulating individual networks...
2017: PloS One
https://www.readbyqxmd.com/read/28328125/two-patients-with-the-heterozygous-r189h-mutation-in-acta2-and-complex-congenital-heart-defects-expands-the-cardiac-phenotype-of-multisystemic-smooth-muscle-dysfunction-syndrome
#2
Thushiha Logeswaran, Christoph Friedburg, Karoline Hofmann, Hakan Akintuerk, Saskia Biskup, Michael Graef, Ali Rad, Axel Weber, Bernd A Neubauer, Dietmar Schranz, Patrice Bouvagnet, Birgit Lorenz, Andreas Hahn
De novo heterozygous mutations changing R179 to histidine, leucine, or cysteine in the ACTA2 gene are associated with Multisystemic Smooth Muscle Dysfunction Syndrome (MSMDS). Characteristic hallmarks of this condition, caused only by these specific ACTA2 mutations, are congenital mydriasis (mid-dilated, non-reactive pupils), a large persistent ductus arteriosus (PDA), aortic aneurysms evolving during childhood, and cerebrovascular anomalies. We describe two patients, a 3-day-old newborn and a 26-year-old woman, with this unique mutation in association with a huge PDA and an aorto-pulmonary window...
April 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28327211/reduced-fetal-vitamin-d-status-by-maternal-undernutrition-during-discrete-gestational-windows-in-sheep
#3
J K Cleal, M R Hargreaves, K R Poore, J C Y Tang, W D Fraser, M A Hanson, L R Green
Placental transport of vitamin D and other nutrients (e.g. amino acids, fats and glucose) to the fetus is sensitive to maternal and fetal nutritional cues. We studied the effect of maternal calorific restriction on fetal vitamin D status and the placental expression of genes for nutrient transport [aromatic T-type amino acid transporter-1 (TAT-1); triglyceride hydrolase/lipoprotein uptake facilitator lipoprotein lipase (LPL)] and vitamin D homeostasis [CYP27B1; vitamin D receptor (VDR)], and their association with markers of fetal cardiovascular function and skeletal muscle growth...
March 22, 2017: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/28327129/short-term-overfeeding-of-zebrafish-with-normal-or-high-fat-diet-as-a-model-for-the-development-of-metabolically-healthy-versus-unhealthy-obesity
#4
Kathrin Landgraf, Susanne Schuster, Andrej Meusel, Antje Garten, Thomas Riemer, Dorit Schleinitz, Wieland Kiess, Antje Körner
BACKGROUND: Obese individuals differ in their risk of developing metabolic and cardiovascular complications depending on fat distribution (subcutaneous versus visceral) and adipose tissue (AT) phenotype (hyperplasic versus hypertrophic). However, the exact mechanisms which determine whether an obese individual is metabolically healthy or unhealthy are not clear, and analyses of the underlying pathomechanisms are limited by the lack of suitable in vivo models in which metabolically healthy versus metabolically unhealthy AT accumulation can be specifically induced...
March 21, 2017: BMC Physiology
https://www.readbyqxmd.com/read/28326484/genome-wide-transcriptional-analysis-of-cardiovascular-related-genes-and-pathways-induced-by-pm2-5-in-human-myocardial-cells
#5
Lin Feng, Xiaozhe Yang, Collins Otieno Asweto, Jing Wu, Yannan Zhang, Hejing Hu, Yanfeng Shi, Junchao Duan, Zhiwei Sun
Air pollution has been a major environment-related health threat. Most of the studies on PM2.5 toxicity have verified on the cardiovascular system and endothelial cells. However, researches on PM2.5-induced myocardial-related toxicity are limited. This study aims to fully understand the toxic effects of PM2.5 on human myocardial cell (AC16) and explore its molecular mechanism based on microarray analysis and bioinformatics analysis. Microarray data analysis manifested that PM2.5-induced toxicity affected expression of 472 genes compared with the control group, including 166 upregulated genes and 306 downregulated genes in human myocardial (AC16) cells...
March 22, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28326156/porphyromonas-gingivalis-is-the-most-abundant-species-detected-in-coronary-and-femoral-arteries
#6
J-L C Mougeot, C B Stevens, B J Paster, M T Brennan, P B Lockhart, F K B Mougeot
An association between oral bacteria and atherosclerosis has been postulated. A limited number of studies have used 16S RNA gene sequencing-based metagenomics approaches to identify bacteria at the species level from atherosclerotic plaques in arterial walls. The objective of this study was to establish detailed oral microbiome profiles, at both genus and species level, of clinically healthy coronary and femoral artery tissues from patients with atherosclerosis. Tissue specimens were taken from clinically non-atherosclerotic areas of coronary or femoral arteries used for attachment of bypass grafts in 42 patients with atherosclerotic cardiovascular disease...
2017: Journal of Oral Microbiology
https://www.readbyqxmd.com/read/28324021/endogenous-calcitonin-gene-related-peptide-regulates-lipid-metabolism-and-energy-homeostasis-in-male-mice
#7
Tian Liu, Akiko Kamiyoshi, Takayuki Sakurai, Yuka Ichikawa-Shindo, Hisaka Kawate, Lei Yang, Megumu Tanaka, Xian Xian, Akira Imai, Liuyu Zhai, Kazutaka Hirabayashi, Kun Dai, Keiya Tanimura, Teng Liu, Nanqi Cui, Kyoko Igarashi, Akihiro Yamauchi, Takayuki Shindo
Calcitonin gene-related peptide (CGRP) is a bioactive peptide produced by alternative splicing of the primary transcript of the calcitonin/CGRP gene. CGRP is largely distributed in the cardiovascular and nervous systems, where it acts as a regulatory factor. CGRP is also expressed in organs and tissues involved in metabolic regulation, including white adipose tissue (WAT), where its function is largely unknown. In this study, we examined the effects of endogenous CGRP on metabolic function. When we administered a high-fat diet to CGRP knockout (CGRP-/-) and wild-type (WT) mice for 10 weeks, we observed that food intake did not differ between the two groups, but body weight and visceral fat weight were significantly lower in CGRP-/- mice...
January 20, 2017: Endocrinology
https://www.readbyqxmd.com/read/28324017/a-novel-selective-bombesin-receptor-subtype-3-agonist-promotes-weight-loss-in-male-diet-induced-obese-rats-with-circadian-rhythm-change
#8
Yasunori Nio, Natsu Hotta, Minoru Maruyama, Kenichi Hamagami, Toshimi Nagi, Masaaki Funata, Junichi Sakamoto, Masanori Nakakariya, Nobuyuki Amano, Tomohiro Okawa, Yasuyoshi Arikawa, Shinobu Sasaki, Shoki Okuda, Shizuo Kasai, Yugo Habata, Yasutaka Nagisa
Bombesin receptor subtype 3 (BRS-3) is an orphan G-protein-coupled receptor. Based on the obese phenotype of male BRS-3-deficient mice, BRS-3 has been considered an attractive target for obesity treatment. Here, we developed a novel selective BRS-3 agonist (Compound-A) and evaluated its anti-obesity effects. Compound-A showed anorectic effects and enhanced energy expenditure in diet-induced obese (DIO)-F344 rats. Moreover, repeated oral administration of Compound-A for 7 days resulted in a significant body weight reduction in DIO-F344 rats...
March 16, 2017: Endocrinology
https://www.readbyqxmd.com/read/28323921/emerging-roles-for-micrornas-in-diabetic-microvascular-disease-novel-targets-for-therapy
#9
Yu Zhang, Xinghui Sun, Basak Icli, Mark W Feinberg
Chronic, low-grade systemic inflammation and impaired microvascular function are critical hallmarks in the development of insulin resistance. Accordingly, insulin resistance is a major risk factor for type 2 diabetes and cardiovascular disease. Accumulating studies demonstrate that restoration of impaired function of the diabetic macro- and microvasculature may ameliorate a range of cardiovascular disease states and diabetes-associated complications. In this review, we focus on the emerging role of microRNAs, non-coding RNAs that fine-tune target gene expression and signaling pathways, in insulin-responsive tissues and cell types important for maintaining optimal vascular homeostasis and preventing the sequelae of diabetes-induced end organ injury...
February 17, 2017: Endocrine Reviews
https://www.readbyqxmd.com/read/28323906/flt-1-gene-polymorphisms-and-protein-expression-profile-in-rheumatoid-arthritis
#10
Agnieszka Paradowska-Gorycka, Anna Sowinska, Andrzej Pawlik, Damian Malinowski, Barbara Stypinska, Ewa Haladyj, Katarzyna Romanowska-Prochnicka, Marzena Olesinska
OBJECTIVES: Inflammation and angiogenesis are a significant element of pathogenesis in rheumatoid arthritis (RA). The FLT-1- triggering factor for production of proinflammatory cytokines-might contributes to inflammation in patients with RA. Association of the FLT-1 polymorphisms with different "angiogenic diseases" suggests that it may be a novel genetic risk factor also for RA. The aim of the study was to identify FLT-1 genetic variants and their possible association with sFLT-1 levels, susceptibility to and severity of RA...
2017: PloS One
https://www.readbyqxmd.com/read/28323875/the-clinical-features-outcomes-and-genetic-characteristics-of-hypertrophic-cardiomyopathy-patients-with-severe-right-ventricular-hypertrophy
#11
Xiying Guo, Chaomei Fan, Lei Tian, Yanling Liu, Hongyue Wang, Shihua Zhao, Fujian Duan, Xiuling Zhang, Xing Zhao, Fengqi Wang, Hongguang Zhu, Aiqing Lin, Xia Wu, Yishi Li
INTRODUCTION: Severe right ventricular hypertrophy (SRVH) is a rare phenotype in hypertrophic cardiomyopathy (HCM) for which limited information is available. This study was undertaken to investigate the clinical, prognostic and genetic characteristics of HCM patients with SRVH. METHODS: HCM with SRVH was defined as HCM with a maximum right ventricular wall thickness ≥10 mm. Whole-genome sequencing (WGS) was performed in HCM patients with SRVH. Multivariate Cox proportional hazards regression models were used to identify risk factors for cardiac death and events in HCM with SRVH...
2017: PloS One
https://www.readbyqxmd.com/read/28323859/diacerein-inhibits-the-pro-atherogenic-pro-inflammatory-effects-of-il-1-on-human-keratinocytes-endothelial-cells
#12
Girish C Mohan, Huayi Zhang, Lei Bao, Benjamin Many, Lawrence S Chan
We investigated IL-1-induced regulation of genes related to inflammation and atherogenesis in human keratinocytes and endothelial cells, and if 'diacerein', an oral IL-1 inhibiting drug currently approved for use in osteoarthritis, would reverse IL-1's effects on these cells. Primary human keratinocytes and coronary artery endothelial cells were treated with either IL-1α or IL-1β, with and without diacerein. Using PCR-array, we assessed differential gene-expression regulated by IL-1 and diacerein. We identified 34 pro-atherogenic genes in endothelial cells and 68 pro-inflammatory genes in keratinocytes significantly (p<0...
2017: PloS One
https://www.readbyqxmd.com/read/28320892/sepiapterin-reductase-gene-disrupted-mice-suffer-from-hypertension-with-fluctuation-and-bradycardia
#13
Chiho Sumi-Ichinose, Yui Suganuma, Taiki Kano, Noriko Ihira, Hiroko Nomura, Kazuhisa Ikemoto, Tadayoshi Hata, Setsuko Katoh, Hiroshi Ichinose, Kazunao Kondo
(6R)-l-erythro-5,6,7,8-Tetrahydrobiopterin (BH4) is an essential cofactor for monoamine and nitric oxide (NO) production. Sepiapterin reductase (SPR) catalyzes the final step in BH4 biosynthesis. We analyzed the cardiovascular function of adult Spr gene-disrupted (Spr(-/-)) mice for the first time. After weaning, Spr(-/-) mice suffered from hypertension with fluctuation and bradycardia, while the monoamine contents in these mice were less than 10% of those in the wild-type mice as a result of BH4 depletion...
March 2017: Physiological Reports
https://www.readbyqxmd.com/read/28320757/additional-candidate-genes-for-human-atherosclerotic-disease-identified-through-annotation-based-on-chromatin-organization
#14
Saskia Haitjema, Claartje A Meddens, Sander W van der Laan, Daniel Kofink, Magdalena Harakalova, Vinicius Tragante, Hassan Foroughi Asl, Jessica van Setten, Maarten M Brandt, Joshua C Bis, Christopher O'Donnell, Caroline Cheng, Imo E Hoefer, Johannes Waltenberger, Erik Biessen, J Wouter Jukema, Pieter A F M Doevendans, Edward E S Nieuwenhuis, Jeanette Erdmann, Johan L M Björkegren, Gerard Pasterkamp, Folkert W Asselbergs, Hester M den Ruijter, Michal Mokry
BACKGROUND: As genome-wide association efforts, such as CARDIoGRAM and METASTROKE, are ongoing to reveal susceptibility loci for their underlying disease-atherosclerotic disease-identification of candidate genes explaining the associations of these loci has proven the main challenge. Many disease susceptibility loci colocalize with DNA regulatory elements, which influence gene expression through chromatin interactions. Therefore, the target genes of these regulatory elements can be considered candidate genes...
April 2017: Circulation. Cardiovascular Genetics
https://www.readbyqxmd.com/read/28320710/myeloid-p53-regulates-macrophage-polarization-and-venous-thrombus-resolution-by-inflammatory-vascular-remodeling-in-mice
#15
Subhradip Mukhopadhyay, Toni M Antalis, Khanh P Nguyen, Mark H Hoofnagle, Rajabrata Sarkar
Deep venous thrombosis (DVT) remains a common and serious cardiovascular problem with both fatal and long-term consequences. The consequences of DVT include the development of post-thrombotic syndrome (PTS) in 25-60% of DVT patients. Despite the clinical importance of venous thrombus resolution, the cellular and molecular mediators involved are poorly understood, and currently there is no molecular therapy to accelerate this process. Several lines of evidence suggest that a complex and interrelated array of molecular signaling processes are involved in the inflammatory vascular remodeling associated with the resolution of DVT...
March 20, 2017: Blood
https://www.readbyqxmd.com/read/28320483/human-and-feline-adipose-derived-mesenchymal-stem-cells-have-comparable-phenotype-immunomodulatory-functions-and-transcriptome
#16
Kaitlin C Clark, Fernando A Fierro, Emily Mills Ko, Naomi J Walker, Boaz Arzi, Clifford G Tepper, Heather Dahlenburg, Andrew Cicchetto, Amir Kol, Lyndsey Marsh, William J Murphy, Nasim Fazel, Dori L Borjesson
BACKGROUND: Adipose-derived mesenchymal stem cells (ASCs) are a promising cell therapy to treat inflammatory and immune-mediated diseases. Development of appropriate pre-clinical animal models is critical to determine safety and attain early efficacy data for the most promising therapeutic candidates. Naturally occurring diseases in cats already serve as valuable models to inform human clinical trials in oncologic, cardiovascular, and genetic diseases. The objective of this study was to complete a comprehensive side-by-side comparison of human and feline ASCs, with an emphasis on their immunomodulatory capacity and transcriptome...
March 20, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28320452/compared-to-the-amniotic-membrane-wharton-s-jelly-may-be-a-more-suitable-source-of-mesenchymal-stem-cells-for-cardiovascular-tissue-engineering-and-clinical-regeneration
#17
Lei Pu, Mingyao Meng, Jian Wu, Jing Zhang, Zongliu Hou, Hui Gao, Hui Xu, Boyu Liu, Weiwei Tang, Lihong Jiang, Yaxiong Li
BACKGROUND: The success of developing cardiovascular tissue engineering (CTE) grafts greatly needs a readily available cell substitute for endothelial and interstitial cells. Perinatal annexes have been proposed as a valuable source of mesenchymal stem cells (MSCs) for tissue engineering and regenerative medicine. The objective of the present study is to evaluate the potential of human Wharton's jelly MSCs (WJ-MSCs) and amniotic membrane MSCs (AM-MSCs) as a seeding cell in CTE and cardiovascular regenerative medicine...
March 21, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28320416/effect-of-the-r92h-and-a379v-genotypes-of-platelet-activating-factor-acetylhydrolase-on-its-enzyme-activity-oxidative-stress-and-metabolic-profile-in-chinese-women-with-polycystic-ovary-syndrome
#18
Renjiao Zhang, Qi Song, Hongwei Liu, Huai Bai, Yujin Zhang, Qingqing Liu, Linbo Guan, Ping Fan
BACKGROUND: The G994T polymorphism in platelet-activating factor acetylhydrolase (PAF-AH) gene is associated with the risk of polycystic ovary syndrome (PCOS). The aim of this study was to investigate the relationship between R92H and A379V variants of the PAF-AH gene and the risk of PCOS and to evaluate the effects of the genotypes on PAF-AH activities and clinical, metabolic and oxidative stress indexes in Chinese women. METHODS: A total of 862 patients with PCOS based on the Rotterdam consensus criteria and 750 control women from a population of Chinese Han nationality in the Chengdu area were studied from 2006-2015...
March 20, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28319050/extracellular-matrix-proteomics-identifies-molecular-signature-of-symptomatic-carotid-plaques
#19
Sarah R Langley, Karin Willeit, Athanasios Didangelos, Ljubica Perisic Matic, Philipp Skroblin, Javier Barallobre-Barreiro, Mariette Lengquist, Gregor Rungger, Alexander Kapustin, Ludmilla Kedenko, Chris Molenaar, Ruifang Lu, Temo Barwari, Gonca Suna, Xiaoke Yin, Bernhard Iglseder, Bernhard Paulweber, Peter Willeit, Joseph Shalhoub, Gerard Pasterkamp, Alun H Davies, Claudia Monaco, Ulf Hedin, Catherine M Shanahan, Johann Willeit, Stefan Kiechl, Manuel Mayr
BACKGROUND: The identification of patients with high-risk atherosclerotic plaques prior to the manifestation of clinical events remains challenging. Recent findings question histology- and imaging-based definitions of the "vulnerable plaque," necessitating an improved approach for predicting onset of symptoms. METHODS: We performed a proteomics comparison of the vascular extracellular matrix and associated molecules in human carotid endarterectomy specimens from 6 symptomatic versus 6 asymptomatic patients to identify a protein signature for high-risk atherosclerotic plaques...
March 20, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28315997/trans-fatty-acids-suppress-tnf-%C3%AE-induced-inflammatory-gene-expression-in-endothelial-huvec-and-hepatocellular-carcinoma-hepg2-cells
#20
Marine S Da Silva, Pierre Julien, Jean-François Bilodeau, Olivier Barbier, Iwona Rudkowska
Trans fatty acids (TFA) intake has been linked to cardiovascular diseases and liver diseases; yet the effect of TFA on inflammation remains controversial. Accordingly, the objective of this paper was to determine the in vitro effects of TFA on inflammatory gene expression. Human umbilical vein endothelial cells (HUVEC) and human hepatocellular carcinoma (HepG2) cells were treated for 24 h with either trans-vaccenic acid (tVA), trans-palmitoleic acid (tPA) or elaidic acid (EA) at concentrations of 5-150 µM, or with a mixture of tVA and tPA (150/50 µM)...
March 18, 2017: Lipids
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