journal
MENU ▼
Read by QxMD icon Read
search

Physiological Genomics

journal
https://www.readbyqxmd.com/read/29775430/gene-expression-profile-analysis-of-aortic-vascular-smooth-muscle-cells-reveals-upregulation-of-cadherin-genes-in-myocardial-infarction-patients
#1
Anselm A Derda, Chin Cheng Woo, Thidathip Wongsurawat, Mark Richards, Chuen Neng Lee, Theo Kofidis, Vladimir A Kuznetsov, Vitaly A Sorokin
Myocardial infarction (MI) induced by acute coronary arterial occlusion is usually secondary to atherosclerotic plaque rupture. Dysregulated response of vascular smooth muscle cells (VSMCs) in atherosclerotic plaques may promote plaque rupture. Cadherins (CDHs) form adherens junctions and are known stabilizers of atherosclerotic plaques. To date, the expression patterns of cadherin have not been well investigated in MI aortic VSMCs. We aimed to investigate the expression of cadherin genes in the aortic wall of patients with and without MI...
May 18, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29775429/genome-wide-dna-methylation-profiles-of-porcine-ovaries-in-estrus-and-proestrus
#2
Xiaolong Zhou, Songbai Yang, Feifei Yan, Ke He, Ayong Zhao
DNA methylation is an important epigenetic modification involved in the estrous cycle and the regulation of reproduction. Here, we investigated the genome-wide profiles of DNA methylation in porcine proestrus and estrus ovaries using methylated DNA immunoprecipitation sequencing (MeDIP-seq). The results showed that DNA methylation was enriched in intergenic and intron regions. The methylation levels of coding regions were higher than those of the 5' and 3' flanking regions of genes. There were 4813 differentially methylated regions (DMRs) of CpG islands in the estrus vs...
May 18, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29775428/the-involvement-of-human-monogenic-cardiomyopathy-genes-in-experimental-polygenic-cardiac-hypertrophy
#3
Priscilla R Prestes, Francine Z Marques, Guillermo Lopez-Campos, Paul Lewandowski, Lea M D Delbridge, Fadi J Charchar, Stephen B Harrap
Hypertrophic cardiomyopathy thickens heart muscles reducing functionality and increasing risk of cardiac disease and morbidity. Genetic factors are involved, but their contribution is poorly understood. We used the hypertrophic heart rat (HHR), a unique normotensive polygenic model of cardiac hypertrophy and heart failure to investigate the role of genes associated with monogenic human cardiomyopathy. We selected 42 genes involved in monogenic human cardiomyopathies to study: 1) DNA variants, by sequencing the whole-genome of 13-week old HHR and age-matched normal heart rat (NHR), its genetic control strain; 2) mRNA expression, by targeted RNA-sequencing in left ventricles of HHR and NHR at five ages (2-days old, 4-, 13-, 33- and 50-weeks old) compared to human idiopathic dilated data; and 3) microRNA expression, with rat microRNA microarrays in left ventricles of 2-days old HHR and age-matched NHR...
May 18, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29750603/differential-gene-expression-patterns-in-vein-regions-susceptible-versus-resistant-to-neointimal-hyperplasia
#4
Sun Hyung Kwon, Li Li, Christi M Terry, Yan-Ting Shiu, Philip J Moos, Brett A Milash, Alfred K Cheung, Donald K Blumenthal
Arteriovenous hemodialysis graft (AVG) stenosis results in thrombosis and AVG failure, and develops chiefly as a consequence of localized neointimal hyperplasia (NH) formation in the vein-graft anastomosis region. The vein region just downstream of the vein-graft anastomosis (herein termed proximal vein region) is relatively resistant to NH. Prevention of AVG stenosis has been ineffective due in part to our limited understanding of the molecular processes involved in NH formation. We hypothesized that the gene expression profiles of the NH-prone and NH-resistant regions will be different from each other after graft placement, and analysis of their genomic profiles may yield therapeutic targets to prevent AVG stenosis...
May 11, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29750602/tpcn2-knock-out-mice-have-improved-insulin-sensitivity-and-are-protected-against-high-fat-diet-induced-weight-gain
#5
Hong He, Katie Holl, Sarah DeBehnke, Chay Teng Yeo, Polly Hansen, Abraham K Gebre, Sandra Leone-Kabler, Margarida Ruas, John S Parks, John Parrington, Leah C Solberg Woods
Type 2 diabetes is a complex disorder affected by multiple genes and the environment. Our laboratory has shown that in response to a glucose challenge, two-pore channel 2 (Tpcn2) knock-out mice exhibit a decreased insulin response but normal glucose clearance, suggesting they have improved insulin sensitivity compared to wild-type mice. We tested the hypothesis that improved insulin sensitivity inTpcn2 knock-out mice would protect against the negative effects of a high fat diet. Male and female Tpcn2 knock-out (KO), heterozygous (Het) and wild-type (WT) mice were fed a low fat (LF) or high fat (HF) diet for 24 weeks...
May 11, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29750601/allelic-heterogeneity-of-lamin-a-c-phenotypes-and-molecular-mechanism-behind-it
#6
Jelena Perovanovic, Eric P Hoffman
Mutations in the LMNA gene cause a broad range of clinical syndromes that show tissue-restricted abnormalities of post mitotic tissues, such as muscle, nerve, heart, and adipose tissue. Mutations in other nuclear envelope proteins cause clinically overlapping disorders. The majority of mutations are dominant single amino acid changes (toxic protein produced by the single mutant gene), and patients are heterozygous with both normal and abnormal proteins. Experimental support has been provided for different models of cellular pathogenesis in nuclear envelope diseases, including changes in heterochromatin formation at the nuclear membrane (epigenomics), changes in the timing of steps during terminal differentiation of cells, and structural abnormalities of the nuclear membrane...
May 11, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29727591/alpha-linolenic-acid-and-linoleic-acid-differentially-regulate-the-skeletal-muscle-secretome-of-obese-zucker-rats
#7
Alex Rajna, Heather Gibling, Ousseynou Sarr, Sarthak Matravadia, Graham P Holloway, David M Mutch
Evidence shows that proteins secreted from skeletal muscle influence a broad range of metabolic signaling pathways. We previously reported that essential polyunsaturated fatty acids (PUFA) improved whole-body glucose homeostasis in obese Zucker rats; however, the mechanisms underlying these benefits remain enigmatic. While PUFA and obesity influence skeletal muscle function, their effects on the secretome are unknown. The aim of this work was to determine if improvements in whole-body glucose homeostasis in obese Zucker rats fed diets supplemented with either linoleic acid (LA) or alpha-linolenic acid (ALA) for 12-wks are related to changes in the skeletal muscle secretome...
May 4, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29727590/determination-of-single-embryo-sex-in-macaca-mulatta-and-mus-musculus-rnaseq-transcriptome-profiles
#8
Uros Midic, Catherine A VandeVoort, Keith E Latham
To account for sex as a biological variable, it is sometimes necessary to identify the sex of an embryo or embryonic cell that was used to generate libraries for RNA sequencing, without the sex being known a priori. The preferred approach for this would take advantage of the mRNA data itself, rather than relying on other methods that require separation and analysis of genomic DNA or diversion of limiting RNA for other assays. We describe here a method that has been optimized for this purpose in samples of rhesus monkey and mouse embryos...
May 4, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29727589/genome-sequencing-in-the-clinic-the-past-present-and-future-of-genomic-medicine
#9
Jeremy W Prokop, Thomas May, Kim Strong, Stephanie M Bilinovich, Caleb Bupp, Surender Rajasekaran, Elizabeth A Worthey, Jozef Lazar
Genomic sequencing has undergone massive expansion in the past ten years, opening the door from being a rarely used research tool into an approach that has broad applications in a clinical setting. From rare disease to cancer, genomics is transforming our knowledge of biology. The transition from targeted gene sequencing, to whole exome sequencing, to whole genome sequencing has only been made possible due to rapid advancements in technologies and informatics that have plummeted the cost per base of DNA sequencing and analysis...
May 4, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29702037/profiling-analysis-of-17%C3%AE-estradiol-regulated-lncrnas-in-mouse-thymic-epithelial-cells
#10
Chaonan Wei, Dongguang Guo, Ying Li, Kaizhao Zhang, Guan Liang, Ying Li, Yongjiang Ma, Jilong Liu, Yugu Li
Thymus is the primary organ for T-cell differentiation and maturation. Many studies have demonstrated that estrogen plays a crucial role in thymic epithelial cell (TEC) proliferation during thymic involution. LncRNAs are involved in various biological processes; however, estrogen mediated lncRNA expression in TECs has not been yet reported. To address this question, the mouse medullary thymic epithelial cell line 1 (MTEC1) was treated with 17β-Estradiol (E2). By using CCK8 assay and flow cytometry, we found that E2 was able to inhibit viability and proliferation of MTEC1 cells...
April 27, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29702036/regulators-of-g-protein-signaling-in-cardiovascular-function-during-pregnancy
#11
Katherine J Perschbacher, Guorui Deng, Rory A Fisher, Katherine N Gibson-Corley, Mark K Santillan, Justin L Grobe
G protein-coupled receptor signaling mechanisms are implicated in many aspects of cardiovascular control, and dysfunction of such signaling mechanisms is commonly associated with disease states. A large number of Regulator of G protein Signaling (RGS) proteins have been identified which variously contribute to the modulation of intracellular second-messenger signaling kinetics. These many RGS proteins each interact with a specific set of second-messenger cascades and receptor types, and exhibit tissue-specific expression patterns...
April 27, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29676955/mitochondrial-genome-modulates-myocardial-akt-glut-hk-salvage-pathway-in-spontaneously-hypertensive-rats-adapted-to-chronic-hypoxia
#12
Iveta Nedvedova, David Kolar, Barbara Elsnicova, Daniela Hornikova, Jiri Novotny, Martin Kalous, Michal Pravenec, Jan Neckar, Frantisek Kolar, Jitka M Zurmanova
Recently we have shown that adaptation to continuous normobaric hypoxia (CNH) decreases myocardial ischemia/reperfusion injury in spontaneously hypertensive rats (SHR) and in conplastic strain (SHR-mtBN ). The protective effect was stronger in the latter group characterized by a selective replacement of SHR mitochondrial genome with that of a more ischemia-resistant Brown Norway strain. The aim of the present study was to examine the possible involvement of the hypoxia inducible factor (HIF)-dependent pathway of the protein kinase B/glucose transporters/hexokinase (Akt/GLUT/HK) in this mitochondrial genome-related difference of the cardioprotective phenotype...
April 20, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29676954/genome-wide-association-study-identifies-loci-and-candidate-genes-for-internal-organ-weights-in-simmental-beef-cattle
#13
Bingxing An, Jiangwei Xia, Tianpeng Chang, Xiaoqiao Wang, Jian Miao, Lingyang Xu, Lupei Zhang, Xue Gao, Yan Chen, Junya Li, Huijiang Gao
Cattle internal organs as accessible raw materials have a long history of being widely used in beef processing, feed and pharmaceutical industry. These traits not only are of economic interest to breeders, but they are intrinsically linked to many valuable traits, such as growth, health, and productivity. Using the Illumina Bovine HD 770K SNP array, we performed a genome-wide association study for heart weight (HW), liver weight (LIW), spleen weight (SW), lung weight (LUW) and kidney weight (KW) in 1217 Simmental cattle...
April 20, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29652636/hif1-mediates-a-switch-in-pyruvate-kinase-isoforms-after-myocardial-infarction
#14
Allison Lesher Williams, Vedbar Khadka, Mingxin Tang, Abigail Avelar, Kathryn J Schunke, Mark Menor, Ralph Victor Shohet
Alternative splicing of RNA is an underexplored area of transcriptional response. We expect that early changes in alternatively spliced genes may be important for responses to cardiac injury. Hypoxia inducible factor 1 (HIF1) is a key transcription factor that rapidly responds to loss of oxygen through alteration of metabolism and angiogenesis. The goal of this study was to investigate the transcriptional response after myocardial infarction (MI) and to identify novel, hypoxia-driven changes, including alternative splicing...
April 13, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29652635/far2-is-associated-with-kidney-disease-in-mice-and-humans
#15
Grant Backer, Sean Eddy, Susan M Sheehan, Yuka Takemon, Anna Reznichenko, Holly S Savage, Matthias Kretzler, Ron Korstanje
Mesangial matrix expansion is an important process in the initiation of chronic kidney disease, yet the genetic factors driving its development are unknown. Our previous studies have implicated Far2 as a candidate gene associated with differences in mesangial matrix expansion between mouse inbred strains. Consistent with the hypothesis that increased expression of Far2 leads to mesangial matrix expansion through increased production of platelet-activating factor precursors, we show that FAR2 is capable of mediating de novo platelet-activating factor synthesis in vitro and driven by the transcription factor NKX3...
April 13, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29652634/emerging-applications-of-genome-editing-technology-to-examine-functionality-of-gwas-associated-variants-for-complex-traits
#16
Andrew J P Smith, Panos Deloukas, Patricia B Munroe
Over the last decade, genome-wide association studies (GWAS) have propelled the discovery of thousands of loci associated with complex diseases. The focus is now turning towards the function of these association signals, determining the causal variant(s) amongst those in strong linkage disequilibrium, and identifying their underlying mechanisms, such as long-range gene regulation. Genome-editing techniques utilising zinc-finger nucleases (ZFN), transcription activator-like effector nucleases (TALENs) and clustered regularly-interspaced short palindromic repeats with Cas9 nuclease (CRISPR-Cas9), are becoming the tools of choice to establish functionality for these variants, due to the ability to assess effects of single variants in vivo...
April 13, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29652633/glucose-insulin-and-the-carotid-body-chemoreceptors-in-humans
#17
Jacqueline K Limberg
Known primarily for its oxygen-sensing capabilities, the carotid body chemoreceptors have recently been implicated in the pathophysiology of a number of metabolic conditions - driven primarily by work in animal models. The research presented in this brief review highlights translational work conducted at the Mayo Clinic between 2010 and 2017 in healthy humans and discusses key areas for future work in disease populations.
April 13, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29625019/beta-hydroxybutyrate-infusion-identifies-acute-differentially-expressed-genes-related-to-metabolism-and-reproduction-in-the-hypothalamus-and-pituitary-of-sheep
#18
Emily R Cope, Brynn H Voy, Brian K Whitlock, Meg Staton, Thomas Lane, Jack Davitt, J Travis Mulliniks
To identify molecular pathways of metabolic imbalances and reproduction, 10 castrated male sheep were randomly assigned to be injected into the lateral ventricle through intracerebroventricular cannulas with 1 mL of β-hydroxybutyric acid sodium salt solution (BHB; 12,800 µmol/L) or saline solution (CON; 0.9% NaCl). Approximately two hours post injection, sheep were humanely euthanized, and hypothalamus and pituitary tissues were harvested for transcriptome characterization using RNA-sequencing. Ribonucleic acid (RNA) was extracted from the hypothalamus and pituitary and sequenced at a high depth (Hypothalamus: 468,912,732 reads; Pituitary: 515,106,092 reads) using the Illumina Hi-Seq 2500 platform and aligned to Bos taurus and Ovis aries genomes...
April 6, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29625018/sugar-sensor-genes-in-the-murine-gastrointestinal-tract-display-a-cephalocaudal-axis-of-expression-and-a-diurnal-rhythm
#19
Patrick O'Brien, Rhys Hewett, Christopher Corpe
Distributed along the length of the gastrointestinal (GI) tract are nutrient sensing cells that release numerous signalling peptides influencing GI function, nutrient homeostasis and energy balance. Recent studies have shown a diurnal rhythm in GI nutrient sensing, but the mechanisms responsible for rhythmicity are poorly understood. In this report we studied murine GI sugar sensor gene and protein expression levels in the morning (7am) and evening (7pm). Sweet taste receptor (tas1r2/tas1r3/gnat3/ gnat1) sugar transporter (slc5a1, slc2a2, slc2a5) and putative sugar sensor (slc5a4a and slc5a4b) gene expression levels were highest in tongue, proximal and distal small intestine, respectively...
April 6, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29625017/adipose-transcriptome-analysis-provides-novel-insights-into-molecular-regulation-of-prolonged-fasting-in-northern-elephant-seal-pups
#20
Bridget Martinez, Jane Khudyakov, Kim Rutherford, Daniel E Crocker, Neil Gemmell, Rudy M Ortiz
The physiological and cellular adaptations to extreme fasting in northern elephant seals (Mirounga angustirostris, NES) are remarkable and may help to elucidate endocrine mechanisms that regulate lipid metabolism and energy homeostasis in mammals. Recent studies have highlighted the importance of thyroid hormones in the maintenance of a lipid-based metabolism during prolonged fasting in weaned NES pups. To identify additional molecular regulators of fasting, we used a transcriptomics approach to examine changes in global gene expression profiles before and after 6-8 weeks of fasting in weaned NES pups...
April 6, 2018: Physiological Genomics
journal
journal
33113
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"