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https://www.readbyqxmd.com/read/28222515/meta-analysis-of-parkinson-s-disease-and-alzheimer-s-disease-revealed-commonly-impaired-pathways-and-dysregulation-of-nrf2-dependent-genes
#1
Qian Wang, Wen-Xing Li, Shao-Xing Dai, Yi-Cheng Guo, Fei-Fei Han, Jun-Juan Zheng, Gong-Hua Li, Jing-Fei Huang
Many lines of evidence suggest that Parkinson's disease (PD) and Alzheimer's disease (AD) have common characteristics, such as mitochondrial dysfunction and oxidative stress. As the underlying molecular mechanisms are unclear, we perform a meta-analysis with 9 microarray datasets of PD studies and 7 of AD studies to explore it. Functional enrichment analysis revealed that PD and AD both showed dysfunction in the synaptic vesicle cycle, GABAergic synapses, phagosomes, oxidative phosphorylation, and TCA cycle pathways, and AD had more enriched genes...
February 7, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28222107/transcriptional-response-to-131i-exposure-of-rat-thyroid-gland
#2
Nils Rudqvist, Johan Spetz, Emil Schüler, Toshima Z Parris, Britta Langen, Khalil Helou, Eva Forssell-Aronsson
Humans are exposed to 131I in medical diagnostics and treatment but also from nuclear accidents, and better knowledge of the molecular response in thyroid is needed. The aim of the study was to examine the transcriptional response in thyroid tissue 24 h after 131I administration in rats. The exposure levels were chosen to simulate both the clinical situation and the case of nuclear fallout. Thirty-six male rats were i.v. injected with 0-4700 kBq 131I, and killed at 24 h after injection (Dthyroid = 0.0058-3...
2017: PloS One
https://www.readbyqxmd.com/read/28222068/inhibition-of-cdk5-induces-cell-death-of-tumor-initiating-cells
#3
Melanie M Mandl, Siwei Zhang, Melanie Ulrich, Elisa Schmoeckel, Doris Mayr, Angelika M Vollmar, Johanna Liebl
BACKGROUND: Tumour-initiating cells (TICs) account for chemoresistance, tumour recurrence and metastasis, and therefore represent a major problem in tumour therapy. However, strategies to address TICs are limited. Recent studies indicate Cdk5 as a promising target for anti-cancer therapy and Cdk5 has recently been associated with epithelial-mesenchymal transition (EMT). However, a role of Cdk5 in TICs has not been described yet. METHODS: Expression of Cdk5 in human cancer tissue was analysed by staining of a human tissue microarray (TMA)...
February 21, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28221841/tetracycline-resistance-patterns-of-lactobacillus-buchneri-group-strains
#4
Marlies Feichtinger, Sigrid Mayrhofer, Wolfgang Kneifel, Konrad J Domig
Lactobacilli are applied as starter cultures for controlled fermentation in the production of food and feed. Among other lactobacilli, members of the Lactobacillus buchneri group are used in fermented milk, wine, and silage. Most of the L. buchneri species used for the manufacturing of food or feed are already on the list for qualified presumption of safety status and are recommended as biological agents by the European Food Safety Authority. Consequently, new strains intended as food or feed additives do not require any additional safety check than confirming the absence of transferable antibiotic resistance determinants...
October 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/28221838/use-of-the-escherichia-coli-identification-microarray-for-characterizing-the-health-risks-of-shiga-toxin-producing-escherichia-coli-isolated-from-foods
#5
David W Lacher, Jayanthi Gangiredla, Isha Patel, Christopher A Elkins, Peter C H Feng
More than 470 serotypes of Shiga toxin-producing Escherichia coli (STEC) have been identified, but not all cause severe illness in humans. Most STEC that cause severe diseases can adhere to epithelial cells, produce specific stx subtypes, and belong to certain serotypes; therefore, these traits appear to be critical STEC risk factors. However, testing for these traits is labor intensive, and serotyping is inadequate because of extensive variations among E. coli O and H antigen types. In the present study, the E...
October 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/28221700/multikinase-inhibitors-sorafenib-and-sunitinib-as-radiosensitizers-in-head-and-neck-cancer-cell-lines
#6
Annette Affolter, Gerson Samosny, Anne-Sophie Heimes, Johanna Schneider, Wilko Weichert, Albrecht Stenzinger, Katharina Sommer, Alexandra Jensen, Arnulf Mayer, Walburgis Brenner, Wolf J Mann, Jürgen Brieger
BACKGROUND: Radioresistance is a common feature of head and neck squamous cell carcinoma (HNSCC). We previously showed that the irradiation- activated vascular endothelial growth factor (VEGF)-extracellular signal-regulated kinase (ERK)-axis is fundamental for the survival of resistant tumors. In this study, we examined if treatment with potent multikinase (MK) inhibitors, sorafenib and sunitinib, could radiosensitize tumor cells. METHODS: Cultured HNSCC cell lines were treated with inhibitors and subsequently irradiated...
February 21, 2017: Head & Neck
https://www.readbyqxmd.com/read/28221248/early-transcriptomic-changes-in-the-ileal-pouch-provide-insight-into-the-molecular-pathogenesis-of-pouchitis-and-ulcerative-colitis
#7
Yong Huang, Sushila Dalal, Dionysios Antonopoulos, Nathaniel Hubert, Laura H Raffals, Kyle Dolan, Christopher Weber, Jeannette S Messer, Bana Jabri, Albert Bendelac, A Murat Eren, David T Rubin, Mitch Sogin, Eugene B Chang
BACKGROUND: Ulcerative colitis (UC) only involves the colonic mucosa. Yet, nearly 50% of patients with UC who undergo total proctocolectomy with ileal pouch anal anastomosis develop UC-like inflammation of the ileal pouch (pouchitis). By contrast, patients with familial adenomatous polyposis (FAP) with ileal pouch anal anastomosis develop pouchitis far less frequently. We hypothesized that pathogenic events associated with the development of UC are recapitulated by colonic-metaplastic transcriptomic reprogramming of the UC pouch...
March 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28220842/image-processing-in-digital-pathology-an-opportunity-to-solve-inter-batch-variability-of-immunohistochemical-staining
#8
Yves-Rémi Van Eycke, Justine Allard, Isabelle Salmon, Olivier Debeir, Christine Decaestecker
Immunohistochemistry (IHC) is a widely used technique in pathology to evidence protein expression in tissue samples. However, this staining technique is known for presenting inter-batch variations. Whole slide imaging in digital pathology offers a possibility to overcome this problem by means of image normalisation techniques. In the present paper we propose a methodology to objectively evaluate the need of image normalisation and to identify the best way to perform it. This methodology uses tissue microarray (TMA) materials and statistical analyses to evidence the possible variations occurring at colour and intensity levels as well as to evaluate the efficiency of image normalisation methods in correcting them...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28220683/analysis-of-distinct-long-noncoding-rna-transcriptional-fingerprints-in-pancreatic-ductal-adenocarcinoma
#9
Xiang Yu, Yang Lin, Wu Sui, Yanfen Zou, Zhongchuan Lv
Pancreatic ductal adenocarcinoma (PDAC) is one of the most aggressive and lethal malignancies with the worst prognosis. Recent studies have demonstrated that long noncoding RNAs (lncRNAs) play critical roles in tumorigenesis and cancer progression. However, the expression pattern and roles of lncRNAs in the development of PDAC remain unknown. Herein, we globally analyzed the lncRNA expression profile in human PDAC and non-tumor tissues using four independent public microarray datasets from Gene Expression Omnibus (GEO)...
February 21, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28220658/serological-evidence-for-exposure-to-avian-influenza-viruses-within-poultry-workers-in-southern-china
#10
E de Bruin, X Zhang, C Ke, R Sikkema, M Koopmans
The risk of infection with avian influenza viruses for poultry workers is relatively unknown in China, and study results are often biased by the notification of only the severe human cases. Protein microarray was used to detect binding antibodies to 13 different haemagglutinin (HA1-part) antigens of avian influenza A(H5N1), A(H7N7), A(H7N9) and A(H9N2) viruses, in serum samples from poultry workers and healthy blood donors collected in the course of 3 years in Guangdong Province, China. Significantly higher antibody titre levels were detected in poultry workers when compared to blood donors for the most recent H5 and H9 strains tested...
February 20, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28220627/downregulation-of-mirna-141-in-breast-cancer-cells-is-associated-with-cell-migration-and-invasion-involvement-of-anp32e-targeting
#11
Ping Li, Tao Xu, Xin Zhou, Liangying Liao, Guolian Pang, Wan Luo, Lu Han, Jiankun Zhang, Xianyong Luo, Xiaobing Xie, Kuichun Zhu
MicroRNAs (miRNAs) regulate many cellular activities, including cancer development, progression, and metastasis. Some miRNAs are involved in breast cancer (BC) migration and invasion, thus affect patients' prognosis. Microarray analysis was performed to compare miRNA expression in BC tissues, and results confirmed by qPCR. BC cell migration and invasion were studied in vitro with MDA-MB-231 cells using microplate transwell assays. miRNA targeting was investigated using luciferase assays, qPCR, and Western blot analysis in cells with overexpression of miRNA mimics...
February 21, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28219891/peripherally-generated-foxp3-regulatory-t-cells-mediate-the-immunomodulatory-effects-of-ivig-in-allergic-airways-disease
#12
Amir H Massoud, Gabriel N Kaufman, Di Xue, Marianne Béland, Marieme Dembele, Ciriaco A Piccirillo, Walid Mourad, Bruce D Mazer
IVIg is widely used as an immunomodulatory therapy. We have recently demonstrated that IVIg protects against airway hyperresponsiveness (AHR) and inflammation in mouse models of allergic airways disease (AAD), associated with induction of Foxp3(+) regulatory T cells (Treg). Using mice carrying a DTR/EGFP transgene under the control of the Foxp3 promoter (DEREG mice), we demonstrate in this study that IVIg generates a de novo population of peripheral Treg (pTreg) in the absence of endogenous Treg. IVIg-generated pTreg were sufficient for inhibition of OVA-induced AHR in an Ag-driven murine model of AAD...
February 20, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28219738/ulipristal-acetate-administration-at-mid-cycle-changes-gene-expression-profiling-of-endometrial-biopsies-taken-during-the-receptive-period-of-the-human-menstrual-cycle
#13
Saúl Lira-Albarrán, Marta Durand, Marco F Larrea-Schiavon, Leticia González, David Barrera, Claudia Vega, Armando Gamboa-Domínguez, Claudia Rangel, Fernando Larrea
The aim of this study was to analyze the effects of mid-cycle administration of Ulipristal acetate (UPA) on gene expression in endometrial biopsies taken during the receptive phase of the cycle. Fourteen healthy menstruating women were studied during 14 control non-treated and 12 treated cycles with a single dose of 30 mg UPA when follicle diameter reached 20 mm. Ovulation in both treated and control cycles was confirmed by serial determinations of serum LH, progesterone and vaginal ultrasound. An endometrial biopsy at day LH+7, in each cycle, was taken for RNA microarray and qPCR analysis or prepared for histological and immunohistochemistry studies...
February 17, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28219384/clarithromycin-attenuates-il-13-induced-periostin-production-in-human-lung-fibroblasts
#14
Kosaku Komiya, Shoichiro Ohta, Kazuhiko Arima, Masahiro Ogawa, Shoichi Suzuki, Yasutaka Mitamura, Satoshi Nunomura, Yasuhiro Nanri, Tomohito Yoshihara, Atsushi Kawaguchi, Jun-Ichi Kadota, Bruce K Rubin, Kenji Izuhara
BACKGROUND: Periostin is a biomarker indicating the presence of type 2 inflammation and submucosal fibrosis; serum periostin levels have been associated with asthma severity. Macrolides have immunomodulatory effects and are considered a potential therapy for patients with severe asthma. Therefore, we investigated whether macrolides can also modulate pulmonary periostin production. METHODS: Using quantitative PCR and ELISA, we measured periostin production in human lung fibroblasts stimulated by interleukin-13 (IL-13) in the presence of two 14-member-ring macrolides-clarithromycin or erythromycin-or a 16-member-ring macrolide, josamycin...
February 20, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28219347/aquaculture-genomics-genetics-and-breeding-in-the-united-states-current-status-challenges-and-priorities-for-future-research
#15
EDITORIAL
Hisham Abdelrahman, Mohamed ElHady, Acacia Alcivar-Warren, Standish Allen, Rafet Al-Tobasei, Lisui Bao, Ben Beck, Harvey Blackburn, Brian Bosworth, John Buchanan, Jesse Chappell, William Daniels, Sheng Dong, Rex Dunham, Evan Durland, Ahmed Elaswad, Marta Gomez-Chiarri, Kamal Gosh, Ximing Guo, Perry Hackett, Terry Hanson, Dennis Hedgecock, Tiffany Howard, Leigh Holland, Molly Jackson, Yulin Jin, Karim Kahlil, Thomas Kocher, Tim Leeds, Ning Li, Lauren Lindsey, Shikai Liu, Zhanjiang Liu, Kyle Martin, Romi Novriadi, Ramjie Odin, Yniv Palti, Eric Peatman, Dina Proestou, Guyu Qin, Benjamin Reading, Caird Rexroad, Steven Roberts, Mohamed Salem, Andrew Severin, Huitong Shi, Craig Shoemaker, Sheila Stiles, Suxu Tan, Kathy F J Tang, Wilawan Thongda, Terrence Tiersch, Joseph Tomasso, Wendy Tri Prabowo, Roger Vallejo, Hein van der Steen, Khoi Vo, Geoff Waldbieser, Hanping Wang, Xiaozhu Wang, Jianhai Xiang, Yujia Yang, Roger Yant, Zihao Yuan, Qifan Zeng, Tao Zhou
Advancing the production efficiency and profitability of aquaculture is dependent upon the ability to utilize a diverse array of genetic resources. The ultimate goals of aquaculture genomics, genetics and breeding research are to enhance aquaculture production efficiency, sustainability, product quality, and profitability in support of the commercial sector and for the benefit of consumers. In order to achieve these goals, it is important to understand the genomic structure and organization of aquaculture species, and their genomic and phenomic variations, as well as the genetic basis of traits and their interrelationships...
February 20, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28218903/macrophage-migration-inhibitory-factor-downregulation-a-novel-mechanism-of-resistance-to-anti-angiogenic-therapy
#16
B A Castro, P Flanigan, A Jahangiri, D Hoffman, W Chen, R Kuang, M De Lay, G Yagnik, J R Wagner, S Mascharak, M Sidorov, S Shrivastav, G Kohanbash, H Okada, M K Aghi
Anti-angiogenic therapies for cancer such as VEGF neutralizing antibody bevacizumab have limited durability. While mechanisms of resistance remain undefined, it is likely that acquired resistance to anti-angiogenic therapy will involve alterations of the tumor microenvironment. We confirmed increased tumor-associated macrophages in bevacizumab-resistant glioblastoma patient specimens and two novel glioblastoma xenograft models of bevacizumab resistance. Microarray analysis suggested downregulated macrophage migration inhibitory factor (MIF) to be the most pertinent mediator of increased macrophages...
February 20, 2017: Oncogene
https://www.readbyqxmd.com/read/28218777/comparative-study-of-13-candidate-genes-applying-multi-reference-normalization-to-detect-the-expression-of-different-fineness-in-skin-tissues-of-wool-sheep
#17
Y Z Tian, T Usman, K C Tian, J Di, X X Huang, X M Xu, H Tulafu, W W Wu, X F Fu, Y Bai, M Tuerxun, A Maimaiti
Fiber diameter is a useful indicator of wool traits and it is the main determinant of wool quality and value. A comparative study was conducted to analyze the abundance and expression of 13 candidate genes using expression profile microarray analysis and to identify novel molecular markers associated with wool traits to provide a molecular basis for improving wool quality in sheep. Genes associated with fineness of skin tissue were identified using a real-time reverse transcriptase-polymerase chain reaction method with 18SrRNA, β-Actin, and GAPDH used for multi-reference normalization...
February 16, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28218742/mirna-expression-profiles-reveal-the-involvement-of-mir-26a-mir-548l-and-mir-34a-in-hepatocellular-carcinoma-progression-through-regulation-of-st3gal5
#18
Hongjiao Cai, Huimin Zhou, Yuan Miao, Nana Li, Lifen Zhao, Li Jia
MicroRNAs (miRNAs) have key roles in comprehensive physiological and pathological processes by targeting specific genes through translational repression. Identification of miRNAs related to metastasis enables us to obtain better insight into cancer development. In the current study, we investigated the miRNA expressional profiles in the highly invasive human hepatocellular carcinoma cell line MHCC97-H and MHCC97-L with lower metastatic potential using miRNA microarrays. By quantitative real-time PCR, we confirmed the results of miRNA experiments...
February 20, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/28218662/microrna-expression-profile-identifies-high-grade-non-muscle-invasive-bladder-tumors-at-elevated-risk-to-progress-to-an-invasive-phenotype
#19
Sara M Lenherr, Sheaumei Tsai, Brasil Silva Neto, Travis B Sullivan, Cara B Cimmino, Tanya Logvinenko, Jason Gee, Wei Huang, John A Libertino, Ian C Summerhayes, Kimberly M Rieger-Christ
The objective of this study was to identify a panel of microRNAs (miRNAs) differentially expressed in high-grade non-muscle invasive (NMI; TaG3-T1G3) urothelial carcinoma that progress to muscle-invasive disease compared to those that remain non-muscle invasive, whether recurrence happens or not. Eighty-nine high-grade NMI urothelial carcinoma lesions were identified and total RNA was extracted from paraffin-embedded tissue. Patients were categorized as either having a non-muscle invasive lesion with no evidence of progression over a 3-year period or as having a similar lesion showing progression to muscle invasion over the same period...
February 17, 2017: Genes
https://www.readbyqxmd.com/read/28218479/systematic-study-of-functionalizable-non-biofouling-agarose-films-with-protein-and-cellular-patterns-on-glass-slides
#20
Gyeongyeop Han, Daehwa Hong, Bong Soo Lee, EunRae Ha, Ji Hun Park, Insung Choi, Sung Min Kang, JungKyu Lee
We demonstrated a systematic investigation on chemically functionalizable, non-biofouling agarose films over large-area glass surfaces. Agarose films, prepared with varying concentrations of agarose (aq), were activated by periodate oxidation to generate aldehyde groups at the termini of agarose chains. The non-biofouling efficacies and binding capabilities of the activated films were evaluated using protein and cellular patterning, assisted by a microarrayer, microcontact printing, and micromolding in capillaries...
February 20, 2017: Chemistry, An Asian Journal
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