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https://www.readbyqxmd.com/read/29781875/feasibility-of-microrna-profiling-in-human-inner-ear-perilymph
#1
Matthew Shew, Athanasia Warnecke, Thomas Lenarz, Heike Schmitt, Sumedha Gunewardena, Hinrich Staecker
Hearing loss is common and caused by a wide range of molecular and cellular pathologies. Current diagnosis of hearing loss depends on a combination of physiologic testing, patient history, and in some cases genetic testing. Currently, no biopsy or equivalent procedure exists to diagnose inner ear disorders. MicroRNAs (miRNA) are short ribonucleic acids that regulate a variety of cellular processes. They have been found to be reliable markers for a variety of disease processes. In particular, a variety of miRNAs that are markers for neurodegenerative disease have been identified in cerebrospinal fluid...
May 17, 2018: Neuroreport
https://www.readbyqxmd.com/read/29778942/transcriptomic-and-methylomic-analysis-reveal-the-toxicological-effect-of-2-3-7-8-tetrachlorodibenzodioxin-on-human-embryonic-stem-cell
#2
Keng Po Lai, Jing Woei Li, Ting Fung Chan, Andy Chen, Cherie Yin Lau Lee, William Shu Biu Yeung, Chris Kong Chu Wong
Cumulating epidemiological studies demonstrated that environmental exposure to endocrine disrupting chemicals (EDCs) during the early stages of fetal development is associated with the increase in disease susceptibility in later life. The fetal developmental plasticity is considered as a protective mechanism against an undesirable prenatal environment. Dioxin is one of the environmental contaminants and is considered a diabetogenic factor. Experimental animal and human epidemiological studies have revealed that dioxin exposure was associated with insulin resistance and altered beta cell function...
May 10, 2018: Chemosphere
https://www.readbyqxmd.com/read/29769661/circulating-mir-374a-5p-is-a-potential-modulator-of-the-inflammatory-process-in-obesity
#3
Ayo P Doumatey, William J He, Amadou Gaye, Lin Lei, Jie Zhou, Gary H Gibbons, Adebowale Adeyemo, Charles N Rotimi
Obese individuals without expected metabolic co-morbidities are referred to as metabolically healthy obese (MHO). The molecular mechanisms underlying this phenotype remain elusive. MicroRNAs may be involved in the MHO phenotype. To test this hypothesis, we screened 179 serum miRNAs in 20 African-American women (10 MHOs and 10 metabolically abnormal obese individuals -MAO). We identified 8 differentially expressed miRNAs (DEMs) with validation in an independent sample of 64 MHO and 34 MAO. Of the eight DEMs in the screening phase (p ≤ 0...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29763473/maternal-folate-genes-and-aberrant-dna-hypermethylation-in-pediatric-acute-lymphoblastic-leukemia
#4
Jeremy M Schraw, Teresa T Yiu, Philip J Lupo, Spiridon Tsavachidis, Rachel Rau, Melissa L Bondy, Karen R Rabin, Lanlan Shen, Michael E Scheurer
BACKGROUND: There is evidence that maternal genotypes in folate-related genes are associated with pediatric acute lymphoblastic leukemia (ALL) independent of offspring genotype. We evaluated the relationship between maternal genotypes in methionine synthase (MTR) and DNA methylation status in ALL to better characterize the molecular mechanism underlying this association. PROCEDURE: We obtained bone marrow samples from 51 patients with ALL at diagnosis and from 6 healthy donors...
2018: PloS One
https://www.readbyqxmd.com/read/29762736/comparative-transcriptome-analysis-of-rumen-papillae-in-suckling-and-weaned-japanese-black-calves-using-rna-sequencing
#5
Koki Nishihara, Daichi Kato, Yutaka Suzuki, Dahye Kim, Misato Nakano, Yu Yajima, Satoshi Haga, Miwa Nakano, Hiroshi Ishizaki, Ryouka Kawahara-Miki, Tomohiro Kono, Kazuo Katoh, Sang-Gun Roh
The length and density of rumen papillae starts to increase during weaning and growth of ruminants. This significant development increases the intraruminal surface area and the efficiency of VFA (acetate, propionate, butyrate, etc.) uptake. Thus, it is important to investigate the factors controlling the growth and development of rumen papillae during weaning. This study aimed to compare the transcriptomes of rumen papillae in suckling and weaned calves. Total RNA was extracted from the rumen papillae of 10 male Japanese Black calves (5 suckling calves, 5 wk old; 5 weaned calves, 15 wk old) and used in RNA-sequencing...
May 12, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29760811/global-dna-methylation-changes-spanning-puberty-are-near-predicted-estrogen-responsive-genes-and-enriched-for-genes-involved-in-endocrine-and-immune-processes
#6
Emma E Thompson, Jessie Nicodemus-Johnson, Kyung Won Kim, James E Gern, Daniel J Jackson, Robert F Lemanske, Carole Ober
Background: The changes that occur during puberty have been implicated in susceptibility to a wide range of diseases later in life, many of which are characterized by sex-specific differences in prevalence. Both genetic and environmental factors have been associated with the onset or delay of puberty, and recent evidence has suggested a role for epigenetic changes in the initiation of puberty as well. Objective: To identify global DNA methylation changes that arise across the window of puberty in girls and boys...
2018: Clinical Epigenetics
https://www.readbyqxmd.com/read/29758065/the-genetic-component-of-preeclampsia-a-whole-exome-sequencing-study
#7
Anette Tarp Hansen, Jens Magnus Bernth Jensen, Anne-Mette Hvas, Mette Christiansen
Preeclampsia is a major cause of maternal and perinatal deaths. The aetiology of preeclampsia is largely unknown but a polygenetic component is assumed. To explore this hypothesis, we performed an in-depth whole-exome sequencing study in women with (cases, N = 50) and without (controls, N = 50) preeclampsia. The women were identified in an unselected cohort of 2,545 pregnant women based on data from the Danish National Patient Registry and the Medical Birth Registry. Matching DNA was obtained from a biobank containing excess blood from routine antenatal care visits...
2018: PloS One
https://www.readbyqxmd.com/read/29749546/serum-proteomic-analysis-of-the-anti%C3%A2-arthritic-effects-of-sinomenine-on-rats-with-collagen%C3%A2-induced-arthritis
#8
Xin Qian, Zhiming Zhao, Wei Shang, Zhihan Xu, Beibei Zhang, Hui Cai
Rheumatoid arthritis (RA) is an autoimmune disease, which is characterized by inflammatory synovitis, and the subsequent destruction of articular cartilage and bone. Sinomenine is a traditional Chinese medicine, which has been employed as a clinical treatment for RA for several years in China. The present study investigated the anti‑arthritic effects of sinomenine on Sprague‑Dawley rats with collagen‑induced arthritis (CIA). The differentially expressed proteins in serum were measured by proteomic analysis in order to generate a differentially expressed protein network...
May 3, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29742621/mechanisms-of-ketamine-on-mice-hippocampi-shown-by-gas-chromatography-mass-spectrometry-based-metabolomic-analysis
#9
Bin Lian, Jinjun Xia, Xun Yang, Chanjuan Zhou, Xue Gong, Siwen Gui, Qiang Mao, Ling Wang, Pengfei Li, Cheng Huang, Xunzhong Qi, Peng Xie
In the present study, we used a gas chromatography-mass spectrometry-based metabolomics method to evaluate the effects of ketamine on mice hippocampi. Multivariate statistical analysis and ingenuity pathway analysis were then used to identify and explore the potential mechanisms and biofunction of ketamine. Compared with the control (CON) group, 14 differential metabolites that involved amino acid metabolism, energy metabolism, and oxidative stress metabolism were identified. After combination with 2,3-dihydroxy-6-nitro-7-sulfamoyl-benzo[f]quinoxaline-2,3-dione (NBQX) administration, six of the 14 metabolites remained significantly differentially expressed between the ketamine (KET) and KET+NBQX groups, including glycine, alanine, glutamine, aspartic acid, myoinositol, and ascorbate, whereas no difference was found in the levels of the other eight metabolites between the KET and KET+NBQX groups, including phosphate, 4-aminobutyric acid, urea, creatine, L-malic acid, galactinol, inosine, and aminomalonic...
May 8, 2018: Neuroreport
https://www.readbyqxmd.com/read/29737854/halobenzoquinone-induced-alteration-of-gene-expression-associated-with-oxidative-stress-signaling-pathways
#10
Jinhua Li, Birget Moe, Yanming Liu, Xing-Fang Li
Halobenzoquinones (HBQs) are emerging disinfection byproducts (DBPs) that effectively induce reactive oxygen species and oxidative damage in vitro. However, impacts of HBQs on oxidative stress related gene expression have not been investigated. In this study, we examined alteration in the expression of 44 genes, related to oxidative stress-induced signaling pathways, in human uroepithelial cells (SV-HUC-1) upon exposure to six HBQs. The results show structure-dependent effects of HBQs on the studied gene expression...
May 8, 2018: Environmental Science & Technology
https://www.readbyqxmd.com/read/29732714/whole-exome-sequencing-to-identify-rare-variants-and-gene-networks-that-increase-susceptibility-to-scleroderma-in-african-americans
#11
Pravitt Gourh, Elaine F Remmers, Steven E Boyden, Theresa Alexander, Nadia D Morgan, Ami A Shah, Maureen D Mayes, Ayo Doumatey, Amy R Bentley, Daniel Shriner, Robyn T Domsic, Thomas A Medsger, Virginia D Steen, Paula S Ramos, Richard M Silver, Benjamin Korman, John Varga, Elena Schiopu, Dinesh Khanna, Vivien Hsu, Jessica K Gordon, Lesley Ann Saketkoo, Heather Gladue, Brynn Kron, Lindsey A Criswell, Chris T Derk, S Louis Bridges, Victoria K Shanmugam, Kathleen D Kolstad, Lorinda Chung, Reem Jan, Elana J Bernstein, Avram Goldberg, Marcin Trojanowski, Suzanne Kafaja, Kathleen M Maksimowicz-McKinnon, James C Mullikin, Adebowale Adeyemo, Charles Rotimi, Francesco Boin, Daniel L Kastner, Fredrick M Wigley
OBJECTIVE: Whole-exome sequencing (WES) studies in systemic sclerosis (SSc) patients of European American (EA) ancestry have identified variants in the ATP8B4 gene and enrichment of variants in genes in the extracellular matrix (ECM)-related pathway increasing SSc susceptibility. Our goal was to evaluate the association of the ATP8B4 gene and the ECM-related pathway with SSc in a cohort of African Americans (AA). METHODS: SSc patients of AA ancestry were enrolled from 23 academic centers across the United States under the Genome Research in African American Scleroderma Patients (GRASP) consortium...
May 6, 2018: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29731976/predicting-high-risk-endometrioid-carcinomas-using-proteins
#12
Di Du, Wencai Ma, Melinda S Yates, Tao Chen, Karen H Lu, Yiling Lu, John N Weinstein, Russell R Broaddus, Gordon B Mills, Yuexin Liu
Background: The lethality of endometrioid endometrial cancer (EEC) is primarily attributable to advanced-stage diseases. We sought to develop a biomarker model that predicts EEC surgical stage at the time of clinical diagnosis. Results: PSES was significantly correlated with surgical stage in the TCGA cohort ( P < 0.0001) and in the validation cohort ( P = 0.0003). Even among grade 1 or 2 tumors, PSES was significantly higher in advanced than in early stage tumors in both the TCGA ( P = 0...
April 13, 2018: Oncotarget
https://www.readbyqxmd.com/read/29731966/-in-vitro-study-on-role-of-%C3%AF-b-protein-in-avian-reovirus-pathogenesis
#13
Manas R Praharaj, Aditya P Sahoo, Tapan K S Chauhan, Ravi Kumar Gandham, Shikha Saxena, Ravi K Agarwal, Kuldeep Dhama, Bina Mishra, Asok K Marriappan, Ashok K Tiwari, Puroshottam Prasad Goswami, Bishnu Prasad Mishra, Deepak Kumar
Avian reoviruses, members of Orthoreovirus genus was known to cause diseases like tenosynovitis, runting-stunting syndrome in chickens. Among eight structural proteins, the proteins of S-class are mainly associated with viral arthritis but the significance of σB protein in arthritis is not established till date. In this infection pathological condition together with infection of joints often leads to arthritis because joints consists of cartilage which forms lubricating surface between two bones, and has limited metabolic, replicative and repair capacity...
April 13, 2018: Oncotarget
https://www.readbyqxmd.com/read/29731111/kidney-targeted-inhibition-of-protein-kinase-c-%C3%AE-ameliorates-nephrotoxic-nephritis-with-restoration-of-mitochondrial-dysfunction
#14
Nino Kvirkvelia, Malgorzata McMenamin, Marie Warren, Ravirajsinh N Jadeja, Sai Karthik Kodeboyina, Ashok Sharma, Wenbo Zhi, Paul M O'Connor, Raghavan Raju, Rudolf Lucas, Michael P Madaio
To investigate the role of protein kinase C-α (PKC-α) in glomerulonephritis, the capacity of PKC-α inhibition to reverse the course of established nephrotoxic nephritis (NTN) was evaluated. Nephritis was induced by a single injection of nephrotoxic serum and after its onset, a PKC-α inhibitor was administered either systemically or by targeted glomerular delivery. By day seven, all mice with NTN had severe nephritis, whereas mice that received PKC-α inhibitors in either form had minimal evidence of disease...
May 4, 2018: Kidney International
https://www.readbyqxmd.com/read/29727961/pyrethroid-insecticide-lambda-cyhalothrin-induces-hepatic-cytochrome-p450-enzymes-oxidative-stress-and-apoptosis-in-rats
#15
María-Aránzazu Martínez, Irma Ares, José-Luis Rodríguez, Marta Martínez, David Roura-Martínez, Victor Castellano, Bernardo Lopez-Torres, María-Rosa Martínez-Larrañaga, Arturo Anadón
This study aimed to examine in rats the effects of the Type II pyrethroid lambda-cyhalothrin on hepatic microsomal cytochrome P450 (CYP) isoform activities, oxidative stress markers, gene expression of proinflammatory, oxidative stress and apoptosis mediators, and CYP isoform gene expression and metabolism phase I enzyme PCR array analysis. Lambda-cyhalothrin, at oral doses of 1, 2, 4 and 8mg/kg bw for 6days, increased, in a dose-dependent manner, hepatic activities of ethoxyresorufin O-deethylase (CYP1A1), methoxyresorufin O-demethylase (CYP1A2), pentoxyresorufin O-depentylase (CYP2B1/2), testosterone 7α- (CYP2A1), 16β- (CYP2B1), and 6β-hydroxylase (CYP3A1/2), and lauric acid 11- and 12-hydroxylase (CYP4A1/2)...
August 1, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29724161/transcriptional-profiling-of-swine-mammary-gland-during-the-transition-from-colostrogenesis-to-lactogenesis-using-rna-sequencing
#16
V Palombo, J J Loor, M D'Andrea, M Vailati-Riboni, K Shahzad, U Krogh, P K Theil
BACKGROUND: Colostrum and milk are essential sources of antibodies and nutrients for the neonate, playing a key role in their survival and growth. Slight abnormalities in the timing of colostrogenesis/lactogenesis potentially threaten piglet survival. To further delineate the genes and transcription regulators implicated in the control of the transition from colostrogenesis to lactogenesis, we applied RNA-seq analysis of swine mammary gland tissue from late-gestation to farrowing. Three 2nd parity sows were used for mammary tissue biopsies on days 14, 10, 6 and 2 before (-) parturition and on day 1 after (+) parturition...
May 3, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29721051/lncrna-pcat1-and-its-genetic-variant-rs1902432-are-associated-with-prostate-cancer-risk
#17
Qinbo Yuan, Haiyan Chu, Yuqiu Ge, Gaoxiang Ma, Mulong Du, Meilin Wang, Zhengdong Zhang, Wei Zhang
Emerging evidence has showed that lncRNAs and trait-associated loci in lncRNAs play a crucial role in the progression of cancer including prostate cancer (PCa).This study aimed to investigate the molecular mechanisms of lncRNA PCAT1 involved in PCa development and its genetic variant associated with PCa risk. We applied cell proliferation and apoptosis assays to assess the effect of PCAT1 on PCa cell phenotypes. In addition, the genome-wide profiling of gene expression was assessed from three pairs of DU145 cells transfected with PCAT1 overexpression vector or negative control (NC) vector...
2018: Journal of Cancer
https://www.readbyqxmd.com/read/29719595/proteomic-alterations-in-early-stage-cervical-cancer
#18
Coşkun Güzel, Natalia I Govorukhina, G Bea A Wisman, Christoph Stingl, Lennard J M Dekker, Harry G Klip, Harry Hollema, Victor Guryev, Peter L Horvatovich, Ate G J van der Zee, Rainer Bischoff, Theo M Luider
Laser capture microdissection (LCM) allows the capture of cell types or well-defined structures in tissue. We compared in a semi-quantitative way the proteomes from an equivalent of 8,000 tumor cells from patients with squamous cell cervical cancer (SCC, n = 22) with healthy epithelial and stromal cells obtained from normal cervical tissue ( n = 13). Proteins were enzymatically digested into peptides which were measured by high-resolution mass spectrometry and analyzed by "all-or-nothing" analysis, Bonferroni, and Benjamini-Hochberg correction for multiple testing...
April 6, 2018: Oncotarget
https://www.readbyqxmd.com/read/29713252/quantitative-proteomic-analysis-of-pancreatic-cyst-fluid-proteins-associated-with-malignancy-in-intraductal-papillary-mucinous-neoplasms
#19
Misol Do, Dohyun Han, Joseph Injae Wang, Hyunsoo Kim, Wooil Kwon, Youngmin Han, Jin-Young Jang, Youngsoo Kim
Background: The application of advanced imaging technologies for identifying pancreatic cysts has become widespread. However, accurately differentiating between low-grade dysplasia (LGD), high-grade dysplasia (HGD), and invasive intraductal papillary mucinous neoplasms (IPMNs) remains a diagnostic challenge with current biomarkers, necessitating the development of novel biomarkers that can distinguish IPMN malignancy. Methods: Cyst fluid samples were collected from nine IPMN patients (3 LGD, 3 HGD, and 3 invasive IPMN) during their pancreatectomies...
2018: Clinical Proteomics
https://www.readbyqxmd.com/read/29709683/a-single-preovulatory-administration-of-ulipristal-acetate-affects-the-decidualization-process-of-the-human-endometrium-during-the-receptive-period-of-the-menstrual-cycle
#20
Saúl Lira-Albarrán, Marta Durand, David Barrera, Claudia Vega, Rocio García Becerra, Lorenza Díaz, Janice García-Quiroz, Claudia Rangel, Fernando Larrea
In order to get further information on the effects of ulipristal acetate (UPA) upon the process of decidualization of endometrium, a functional analysis of the differentially expressed genes in endometrium (DEG) from UPA treated-versus control-cycles of normal ovulatory women was performed. A list of 1183 endometrial DEG, from a previously published study by our group, was submitted to gene ontology, gene enrichment and ingenuity pathway analyses (IPA). This functional analysis showed that decidualization was a biological process overrepresented...
April 27, 2018: Molecular and Cellular Endocrinology
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