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https://www.readbyqxmd.com/read/28927114/microrna-383-5p-acts-as-a-prognostic-marker-and-inhibitor-of-cell-proliferation-in-lung-adenocarcinoma-by-cancerous-inhibitor-of-protein-phosphatase-2a
#1
Shasha Zhao, Xinyuan Gao, Shuzhi Zang, Yunxia Li, Xianjun Feng, Xiaomei Yuan
Lung cancer is the leading cause of cancer-associated mortality worldwide. MicroRNAs (miRNAs/miRs) serve a role in the occurrence and development of lung cancer. The aim of the present study was to analyze the expression and function of the proliferation-associated miR-383-5p in lung adenocarcinoma (LAC). Samples of human LAC and matched adjacent normal lung tissues were surgically removed, and miR-383-5p expression and the pathological characteristics of lung adenocarcinoma were investigated. The present study revealed that miR-383-5p expression level was significantly decreased in LAC tissues and its expression levels were markedly associated with tumor size and differentiation...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927063/microrna-494-is-a-potential-prognostic-marker-and-inhibits-cellular-proliferation-migration-and-invasion-by-targeting-sirt1-in-epithelial-ovarian-cancer
#2
Aijun Yang, Xuenan Wang, Chunna Yu, Zhenzhen Jin, Lingxia Wei, Jinghe Cao, Qin Wang, Min Zhang, Lin Zhang, Lei Zhang, Cuifang Hao
Ovarian cancer is one of the most common types of gynecological malignancy worldwide, and is the fourth leading cause of cancer-associated mortality among women. Despite improvements in therapeutic treatments, the prognosis for epithelial ovarian cancer (EOC) remains poor, mainly due to the rapid growth and metastasis of ovarian cancer tumors. An increasing number of studies have indicated that microRNAs (miRNAs) are involved in the carcinogenesis and progression of human cancer, suggesting that miRNAs may be used in clinical prognosis and as a therapeutic target in EOC...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28926848/-parsonage-turner-syndrome-case-report
#3
Alexander Katzer, Wolf-Peter Niedermauntel, Jörg Rump
Neuralgic amyotrophy of the shoulder (Parsonage-Turner syndrome) is a rare condition of unknown aetiology which manifests as acute neuropathy of the brachial plexus. Diagnosis is based on typical symptoms and physical examination. In addition, magnetic resonance imaging of the affected shoulder and the cervical spine is advisable, in order to distinguish this syndrome from other conditions with similar symptoms. There is no specific treatment for neuralgic amyotrophy, but in about 50 - 67% of cases complete recovery occurs within two to three years, depending on the severity of the symptoms when they first appear...
September 19, 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/28926755/neochordoplasty-versus-leaflet-resection-for-ruptured-mitral-chordae-treatment-virtual-mitral-valve-repair
#4
Ahnryul Choi, David D McPherson, Hyunggun Kim
Degenerative mitral valve (MV) disease involving mitral prolapse is one of the most prevalent MV pathologies. Quadrangular leaflet resection and neochordoplasty demonstrate excellent clinical outcomes for the treatment of posterior leaflet prolapse. We evaluated the functional and biomechanical characteristics of a virtual pathologic MV model suffering from chordal rupture, performed virtual neochordoplasty and quadrangular leaflet resection, and compared the two post-repair MV functions. The pre-repair MV demonstrated severe posterior leaflet prolapse due to the ruptured P2 chordae and excessive stress concentration...
September 13, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28926745/microrna-30e-functions-as-a-tumor-suppressor-in-cervical-carcinoma-cells-through-targeting-galnt7
#5
Huijuan Wu, Jun Chen, Dan Li, Xiangyu Liu, Lei Li, Ke Wang
Cervical cancer is the third most common cancer in women worldwide. However, the underlying mechanism of occurrence and development of cervical cancer is obscure. In this study, we observed that miR-30e was downregulated in clinical cervical cancer tissues and cervical cancer cells. Next, overexpression of miR-30e reduced the cervical cancer cell growth through MTT, colony formation, EdU, and Transwell assay in SiHa and Caski cells. Subsequently, UDP-N-acetyl-D-galactosamine: polypeptide N-acetylgalactosaminyltransferase 7 (GALNT7) was identified as a potential miR-30e target by bioinformatics analysis...
September 16, 2017: Translational Oncology
https://www.readbyqxmd.com/read/28926640/aire-deficient-mice-provide-a-model-of-corneal-and-lacrimal-gland-neuropathy-in-sj%C3%A3-gren-s-syndrome
#6
Feeling Y Chen, Albert Lee, Shaokui Ge, Sara Nathan, Sarah M Knox, Nancy A McNamara
Sjögren's syndrome (SS) is a chronic, autoimmune exocrinopathy that leads to severe dryness of the mouth and eyes. Exocrine function is highly regulated by neuronal mechanisms but little is known about the link between chronic inflammation, innervation and altered exocrine function in the diseased eyes and exocrine glands of SS patients. To gain a better understanding of neuronal regulation in the immunopathogenesis of autoimmune exocrinopathy, we profiled a mouse model of spontaneous, autoimmune exocrinopathy that possess key characteristics of peripheral neuropathy experienced by SS patients...
2017: PloS One
https://www.readbyqxmd.com/read/28926607/the-novel-mineralocorticoid-receptor-antagonist-finerenone-attenuates-neointima-formation-after-vascular-injury
#7
Jochen Dutzmann, Robert-Jonathan Musmann, Marco Haertlé, Jan-Marcus Daniel, Kristina Sonnenschein, Andreas Schäfer, Peter Kolkhof, Johann Bauersachs, Daniel G Sedding
BACKGROUND: The novel nonsteroidal mineralocorticoid receptor (MR) antagonist finerenone holds promise to be safe and efficient in the treatment of patients with heart failure and/or chronic kidney disease. However, its effects on vascular function remain elusive. PURPOSE: The aim of this study was to determine the functional effect of selective MR antagonism by finerenone in vascular cells in vitro and the effect on vascular remodeling following acute vascular injury in vivo...
2017: PloS One
https://www.readbyqxmd.com/read/28926606/links-between-plant-and-fungal-diversity-in-habitat-fragments-of-coastal-shrubland
#8
Mia R Maltz, Kathleen K Treseder, Krista L McGuire
Habitat fragmentation is widespread across ecosystems, detrimentally affecting biodiversity. Although most habitat fragmentation studies have been conducted on macroscopic organisms, microbial communities and fungal processes may also be threatened by fragmentation. This study investigated whether fragmentation, and the effects of fragmentation on plants, altered fungal diversity and function within a fragmented shrubland in southern California. Using fluorimetric techniques, we assayed enzymes from plant litter collected from fragments of varying sizes to investigate enzymatic responses to fragmentation...
2017: PloS One
https://www.readbyqxmd.com/read/28926510/restoring-vaginal-function-in-postmenopausal-women-with-genitourinary-syndrome-of-menopause
#9
Risa Kagan, Eliza Rivera
Menopause practitioners are often asked to help postmenopausal women restore vaginal health and function. A common scenario is the postmenopausal woman who has been without a sexual partner for many years and is now about to resume or has already unsuccessfully attempted penetrative sexual activity. This Practice Pearl addresses the pathophysiology and effect of atrophic genital changes and offers advice on how vaginal health and comfortable sexual activity can be restored.
September 18, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28926399/natural-killer-cells-in-hiv-1-infection-and-therapy
#10
Joanna Mikulak, Ferdinando Oriolo, Elisa Zaghi, Clara Di Vito, Domenico Mavilio
: Natural killer (NK) cells are important effectors of innate immunity playing a key role in the eradication and clearance of viral infections. Over the recent years, several studies have shown that HIV-1 pathologically changes NK cell homeostasis and hampers their antiviral effector functions. Moreover, high levels of chronic HIV-1 viremia markedly impair those NK cell regulatory features that normally regulate the cross-talks between innate and adaptive immune responses. These pathogenic events take place early in the infection and are associated with a pathologic redistribution of NK cell subsets that includes the expansion of anergic CD56 NK cells with an aberrant repertoire of activating and inhibitory receptors...
September 18, 2017: AIDS
https://www.readbyqxmd.com/read/28926091/functional-role-of-mesenchymal-stem-cells-in-the-treatment-of-chronic-neurodegenerative-diseases
#11
Debora Lo Furno, Giuliana Mannino, Rosario Giuffrida
Mesenchymal stem cells (MSCs) can differentiate into not only cells of mesodermal lineages, but also into endodermal and ectodermal derived elements, including neurons and glial cells. For this reason, MSCs have been extensively investigated to develop cell-based therapeutic strategies, especially in pathologies whose pharmacological treatments give poor results, if any. As in the case of irreversible neurological disorders characterized by progressive neuronal death, in which behavioral and cognitive functions of patients inexorably decline as the disease progresses...
September 19, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28925872/abdominal-aorta-aneurysm-aaa-is-there-a-role-for-prevention-and-therapy-using-antioxidants
#12
Joël Pincemail, Jean-Olivier Defraigne, Audrey Courtois, Adelin Albert, Jean-Paul Cheramy-Bien, Natzi Sakalihasan
Abdominal aortic aneurysm (AAA) is a degenerative disease that cause mortality in people aged > 65 years. Increased reactive oxygen species (ROS) and oxidative stress seems to play a pivotal role in AAA pathogenesis. Several sources of ROS have been identified in aortic tissues using experimental models: inflammation, increased activity of NAD(P)H or NOX, over-expression of inducible nitric oxide synthase (iNOS), uncoupled endothelial nitric oxide synthase (eNOS), platelets activation and iron release from hemoglobin...
September 18, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/28925546/multidisciplinary-full-mouth-rehabilitation-with-soft-tissue-regeneration-in-the-esthetic-zone
#13
Anja Liebermann, Stefan Frei, Madalena Lucia Pinheiro Dias Engler, Otto Zuhr, Otto Prandtner, Daniel Edelhoff, Reza Saeidi Pour
OBJECTIVE: Oral rehabilitation often requires a multidisciplinary approach including restorative dentistry, prosthodontics, and periodontology to fulfill high esthetic and functional demands, frequently combined with changes in the vertical dimension. The presence of gingival recessions can be associated with numerous factors, such as brushing or preparation trauma and persistent inflammation of the gingiva due to inadequate marginal fit of restorations. Because gingival recessions can cause major esthetic and functional problems, obtaining stability of the gingival tissue around prosthetic restorations is of essential concern...
September 19, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28925482/microrna-509-5p-functions-as-an-anti-oncogene-in-breast-cancer-via-targeting-sod2
#14
Y-H Song, J Wang, G Nie, Y-J Chen, X Li, X Jiang, W-H Cao
OBJECTIVE: Breast cancer is one of the most common malignant tumors in women worldwide. Considering the poor therapeutic effect of breast cancer, we are supposed to dissect the functioning mode of miR-509-5p on breast cancer cell growth and metastasis, providing therapeutic targets for breast cancer. PATIENTS AND METHODS: Quantitative Real-time PCR (qRT-PCR) assay was employed to detect miR-509-5p expression level. CCK8 assay and colony formation assay were incorporated to assess cell viability and proliferation capacities...
August 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28925356/the-c-elegans-neural-editome-reveals-an-adar-target-mrna-required-for-proper-chemotaxis
#15
Sarah N Deffit, Brian A Yee, Aidan C Manning, Suba Rajendren, Pranathi Vadlamani, Emily C Wheeler, Alain Domissy, Michael C Washburn, Gene W Yeo, Heather A Hundley
ADAR proteins alter gene expression both by catalyzing adenosine (A) to inosine (I) RNA editing and binding to regulatory elements in target RNAs. Loss of ADARs affects neuronal function in all animals studied to date. Caenorhabditis elegans lacking ADARs exhibit reduced chemotaxis, but the targets responsible for this phenotype remain unknown. To identify critical neural ADAR targets in C. elegans, we performed an unbiased assessment of the effects of ADR-2, the only A-to-I editing enzyme in C. elegans, on the neural transcriptome...
September 19, 2017: ELife
https://www.readbyqxmd.com/read/28924605/pai-1-is-a-critical-regulator-of-fgf23-homeostasis
#16
Mesut Eren, Aaron T Place, Paul M Thomas, Panagiotis Flevaris, Toshio Miyata, Douglas E Vaughan
Elevated levels of fibroblast growth factor 23 (FGF23), a bone-derived phosphaturic hormone, are associated with a number of pathologic conditions including chronic kidney disease, cardiac hypertrophy, and congestive heart failure. Currently, there are no specific treatments available to lower plasma FGF23 levels. We have recently reported that genetic plasminogen activator inhibitor-1 (PAI-1) deficiency provided a significant reduction in circulating FGF23 levels while simultaneously prolonging the life span of Klotho-deficient mice...
September 2017: Science Advances
https://www.readbyqxmd.com/read/28924207/novel-ecto-tagged-integrins-reveal-their-trafficking-in-live-cells
#17
Clotilde Huet-Calderwood, Felix Rivera-Molina, Daniel V Iwamoto, Emil B Kromann, Derek Toomre, David A Calderwood
Integrins are abundant heterodimeric cell-surface adhesion receptors essential in multicellular organisms. Integrin function is dynamically modulated by endo-exocytic trafficking, however, major mysteries remain about where, when, and how this occurs in living cells. To address this, here we report the generation of functional recombinant β1 integrins with traceable tags inserted in an extracellular loop. We demonstrate that these 'ecto-tagged' integrins are cell-surface expressed, localize to adhesions, exhibit normal integrin activation, and restore adhesion in β1 integrin knockout fibroblasts...
September 18, 2017: Nature Communications
https://www.readbyqxmd.com/read/28924032/staphylococcus-aureus-strain-newman-d2c-contains-mutations-in-major-regulatory-pathways-that-cripple-its-pathogenesis
#18
William E Sause, Richard Copin, Aidan O'malley, Rita Chan, Brian J Morrow, Peter T Buckley, Jeffrey Fernandez, A Simon Lynch, Bo Shopsin, Victor J Torres
Staphylococcus aureus is a major human pathogen that imposes a great burden on the healthcare system. In the development of anti-staphylococcal modalities intended to reduce the burden of staphylococcal disease, it is imperative to select appropriate models of S. aureus strains when assessing the efficacy of novel agents. Here, using whole genome sequencing, we reveal that the commonly used strain Newman D2C from the American Type Culture Collection (ATCC) contains mutations that render the strain essentially avirulent...
September 18, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28924012/inhibition-of-il-1%C3%AE-signaling-normalizes-nmda-dependent-neurotransmission-and-reduces-seizure-susceptibility-in-a-mouse-model-of-creutzfeldt-jakob-disease
#19
Ilaria Bertani, Valentina Iori, Massimo Trusel, Mattia Maroso, Claudia Foray, Susanna Mantovani, Raffaella Tonini, Annamaria Vezzani, Roberto Chiesa
Creutzfeldt-Jakob disease (CJD) is a neurodegenerative disorder caused by prion protein (PrP) misfolding, clinically recognized by cognitive and motor deficits, electroencephalographic (EEG) abnormalities and seizures. Its neurophysiological bases are not known. To assess the potential involvement of N-methyl-D-aspartate receptor (NMDAR) dysfunction, we analyzed NMDA-dependent synaptic plasticity in hippocampal slices from Tg(CJD) mice, which model a genetic form of CJD. Because PrP depletion may result in functional upregulation of NMDARs, we also analyzed PrP knockout (KO) mice...
September 18, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28923943/-psi-prion-propagation-is-controlled-by-inositol-polyphosphates
#20
Reed B Wickner, Amy C Kelly, Evgeny E Bezsonov, Herman K Edskes
The yeast prions [PSI+] and [URE3] are folded in-register parallel β-sheet amyloids of Sup35p and Ure2p, respectively. In a screen for antiprion systems curing [PSI+] without protein overproduction, we detected Siw14p as an antiprion element. An array of genetic tests confirmed that many variants of [PSI+] arising in the absence of Siw14p are cured by restoring normal levels of the protein. Siw14p is a pyrophosphatase specifically cleaving the β phosphate from 5-diphosphoinositol pentakisphosphate (5PP-IP5), suggesting that increased levels of this or some other inositol polyphosphate favors [PSI+] propagation...
September 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
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