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https://www.readbyqxmd.com/read/28088781/mir-30c-5p-ameliorates-hepatic-steatosis-in-leptin-receptor-deficient-db-db-mice-via-down-regulating-fasn
#1
Jiahui Fan, Huaping Li, Xiang Nie, Zhongwei Yin, Yanru Zhao, Chen Chen, Dao Wen Wang
Approximately 15-40% of the general adult population suffers from non-alcoholic fatty liver disease (NAFLD) worldwide. However, no drug is currently licensed for its treatment. In this study, we observed a significant reduction of miR-30c-5p in the liver of leptin receptor-deficient (db/db) mice. Remarkably, recombinant adeno-associated virus (rAAV)-mediated delivery of miR-30c-5p was sufficient to attenuate triglyceride accumulation and hepatic steatosis in db/db mice. Through computational prediction, KEGG analysis and Ago2 co-immunoprecipitation, we identified that miR-30c-5p directly targeted fatty acid synthase, a key enzyme in fatty acid biosynthesis...
January 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28088779/comprehensive-proteome-analysis-of-lysosomes-reveals-the-diverse-function-of-macrophages-in-immune-responses
#2
Yanpan Gao, Yanyu Chen, Shaohua Zhan, Wenhao Zhang, Feng Xiong, Wei Ge
Phagocytosis and autophagy in macrophages have been shown to be essential to both innate and adaptive immunity. Lysosomes are the main catabolic subcellular organelles responsible for degradation and recycling of both extracellular and intracellular material, which are the final steps in phagocytosis and autophagy. However, the molecular mechanisms underlying lysosomal functions after infection remain obscure. In this study, we conducted a quantitative proteomics analysis of the changes in constitution and glycosylation of proteins in lysosomes derived from murine RAW 264...
January 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28088748/a-dna-probe-based-on-phosphorescent-resonance-energy-transfer-for-detection-of-transgenic-35s-promoter-dna
#3
Jinzhi Lv, Yanming Miao, Jiajia Yang, Jin Qin, Dongxia Li, Guiqin Yan
A QDs-DNA nano-probe was made by combining Mn-doped ZnS room-temperature phosphorescence (RTP) quantum dots (QDs) and DNA. Then an RTP sensor for quantitative detection of genetically-modified mark sequence cauliflower mosaic virus 35S promoter (Ca MV 35S) DNA was built on basis of phosphorescent resonance energy transfer (PRET). The underlying principles were that a QDs-DNA water-soluble nano-probe was built by connecting single-strand DNA to the surfaces of QDs via a ligand exchange method. This probe had good RTP performance and could well identify Ca MV 35S...
January 7, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28088686/immune-history-and-influenza-virus-susceptibility
#4
REVIEW
Sarah Cobey, Scott E Hensley
Antibody responses to influenza viruses are critical for protection, but the ways in which repeated viral exposures shape antibody evolution and effectiveness over time remain controversial. Early observations demonstrated that viral exposure history has a profound effect on the specificity and magnitude of antibody responses to a new viral strain, a phenomenon called 'original antigenic sin.' Although 'sin' might suppress some aspects of the immune response, so far there is little indication that hosts with pre-existing immunity are more susceptible to viral infections compared to naïve hosts...
January 12, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/28088665/influenza-a-h1n1-pdm-2009-and-influenza-b-virus-co-infection-in-hospitalized-and-non-hospitalized-patients-during-the-2015-2016-epidemic-season-in-israel
#5
Rakefet Pando, Yaron Drori, Nehemya Friedman, Aharona Glatman-Freedman, Hanna Sefty, Tamar Shohat, Ella Mendelson, Musa Hindiyeh, Michal Mandelboim
BACKGROUND: Influenza A and B viruses co-infections are rare events and mainly occurred in immunocompromised patients. OBJECTIVES: In this study we report an unusually high occurrence of influenza A (H1N1)pdm 2009 and influenza B virus co-infections during the epidemic year 2015-2016. STUDY DESIGN: Nasopharyngeal swabs were collected from 1919 patients visiting 26 outpatient clinics distributed throughout Israel and presenting with influenza-like illness...
January 6, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28088588/dengue-infection-in-pregnancy-and-its-impact-on-the-placenta
#6
Christiane Fernandes Ribeiro, Vânia Glória Silami Lopes, Patrícia Brasil, Andrea Rodrigues Cordovil Pires, Roger Rohloff, Rita Maria Ribeiro Nogueira
A histopathological and immunohistochemical study was conducted in placental tissues and retained products of conception from 24 patients with confirmed dengue infection during pregnancy. The immunohistochemical assay was positive for dengue virus in 19 placental and three ovular remnants analyzed. The light microscopic findings were signs of hypoxia, choriodeciduitis, deciduitis and intervillositis and the viral antigens were found in cytoplasmic of the trophoblast, villous stroma and decidua.Our results suggest that immunohistochemistry could be used as a laboratory confirmation method for dengue in pregnant women, especially in endemic areas when embedded material is the only material available...
January 11, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28088502/the-nucleotide-changes-within-hbv-core-promoter-precore-during-the-first-12weeks-of-nucleos-t-ide-treatment-might-be-associated-with-a-better-virological-response
#7
Yaqin Peng, Yutang Li, Jinlin Hou, Jian Sun, Mingze Su, Yao Li, Kuanhui Xiang, Ling Yan, Hui Zhuang, Tong Li
OBJECTIVES: We aimed to study the dynamic changes of hepatitis B virus (HBV) core promoter/precore (CP/preC) sequences during antiviral treatment and their associations with virological responses. MATERIALS AND METHODS: The baseline and 12-week CP/preC sequences (nts 1655-2014) were obtained from 52 chronic hepatitis B patients with positive hepatitis B e antigen (HBeAg), who received a 104-week lamivudine and adefovir dipivoxil combination therapy. The mutations within the CP/preC were analyzed against genotype specific reference sequences...
January 11, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28088461/changes-in-the-prevalence-of-hepatitis-c-virus-infection-non-alcoholic-steatohepatitis-and-alcoholic-liver-disease-among-patients-with-cirrhosis-or-liver-failure-on-the-waitlist-for-liver-transplantation
#8
David Goldberg, Ivo C Ditah, Kia Saeian, Mona Lalehzari, Andrew Aronsohn, Emmanuel C Gorospe, Michael Charlton
BACKGROUND & AIMS: Concurrent to development of more effective drugs for treatment of hepatitis C virus (HCV), infection, there has been an increase in the incidence of non-alcoholic fatty liver disease (NAFLD). Data indicate that liver transplantation prolongs survival times of patient with acute hepatitis associated with alcoholic liver disease (ALD). We compared data on disease prevalence in the population with data from liver transplantation waitlists to evaluate changes in the burden of liver disease in the United States...
January 11, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28088400/hospitalizations-for-respiratory-syncytial-virus-and-vaccine-preventable-infections-in-the-first-2-years-after-pediatric-liver-transplant
#9
Amy G Feldman, Shikha S Sundaram, Brenda L Beaty, Allison Kempe
OBJECTIVES: To examine in liver transplant recipients at centers participating in the Pediatric Health Information System dataset the number of hospitalizations for respiratory syncytial virus (RSV) and vaccine-preventable infections (VPIs) in the first 2 years after transplantation, morbidity and mortality associated with these hospitalizations, and costs associated with these hospitalizations. STUDY DESIGN: A retrospective cohort study of patients <18 years of age who underwent liver transplantation at a Pediatric Health Information System center between January 1, 2004, and December 31, 2012...
January 11, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28088362/molecular-characterization-of-a-novel-orthomyxovirus-from-rainbow-and-steelhead-trout-oncorhynchus-mykiss
#10
William N Batts, Scott E LaPatra, Ryan Katona, Eric Leis, Terry Fei Fan Ng, Marine S O Brieuc, Rachel B Breyta, Maureen K Purcell, Carla M Conway, Thomas B Waltzek, Eric Delwart, James R Winton
A novel virus, rainbow trout orthomyxovirus (RbtOV), was isolated in 1997 and again in 2000 from commercially-reared rainbow trout (Oncorhynchus mykiss) in Idaho, USA. The virus grew optimally in the CHSE-214 cell line at 15°C producing a diffuse cytopathic effect; however, juvenile rainbow trout exposed to cell culture-grown virus showed no mortality or gross pathology. Electron microscopy of preparations from infected cell cultures revealed the presence of typical orthomyxovirus particles. The complete genome of RbtOV is comprised of eight linear segments of single-stranded, negative-sense RNA having highly conserved 5' and 3'-terminal nucleotide sequences...
January 11, 2017: Virus Research
https://www.readbyqxmd.com/read/28088354/uncovering-oxysterol-binding-protein-osbp-as-a-target-of-the-anti-enteroviral-compound-ttp-8307
#11
Lucian Albulescu, Joëlle Bigay, Bishyajit Biswas, Marion Weber-Boyvat, Cristina M Dorobantu, Leen Delang, Hilde M van der Schaar, Young-Sik Jung, Johan Neyts, Vesa M Olkkonen, Frank J M van Kuppeveld, Jeroen R P M Strating
The genus Enterovirus (e.g. poliovirus, coxsackievirus, rhinovirus) of the Picornaviridae family of positive-strand RNA viruses includes many important pathogens linked to a range of acute and chronic diseases for which no approved antiviral therapy is available. Targeting a step in the life cycle that is highly conserved provides an attractive strategy for developing broad-range inhibitors of enterovirus infection. A step that is currently explored as a target for the development of antivirals is the formation of replication organelles, which support replication of the viral genome...
January 11, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28088353/expansion-and-differentiation-of-igm-b-cells-in-the-rainbow-trout-peritoneal-cavity-in-response-to-different-antigens
#12
Rosario Castro, Beatriz Abós, Lucia González, Aitor G Granja, Carolina Tafalla
To date, intraperitoneal (i.p.) injection seems to be the most effective vaccination route in aquaculture, as many i.p. administered fish vaccines are capable of conferring strong and long-lasting immune responses. Despite this, how peritoneal leukocytes are regulated upon antigen encounter has only been scarcely studied in fish. Although, in the past, myeloid cells were thought to be the main responders to peritoneal inflammation, a recent study revealed that IgM(+) B cells are one of the main cell types in the teleost peritoneal cavity in response to pathogenic bacteria...
January 11, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28088318/correlation-of-the-hpv-detection-protein-expression-and-dna-content-in-cutaneous-pre-invasive-and-invasive-carcinoma-among-croatian-patients
#13
Kristina Meljanac Salopek, Stanko Jukić, Damir Babić
Development of cutaneous carcinomas has been associated with HPV infection. There have been various reports on p16, p53 and pRb expression in cutaneous carcinomas and on its linkage to HPV status. Association of protein expression and HPV infection with DNA content is not clear. The aim of this study was to determine a possible correlation between HPV type, protein expression and DNA content in both pre-invasive and invasive squamous cell carcinoma, as well as differences between studied groups in these parameters...
January 11, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28088273/a-real-world-impact-of-cost-effectiveness-of-pegylated-interferon-ribavarin-regimens-on-treatment-na%C3%A3-ve-chronic-hepatitis-c-patients-in-taiwan
#14
Pei-Chien Tsai, Ta-Wei Liu, Meng-Hsuan Hsieh, Ming-Lun Yeh, Po-Cheng Liang, Yi-Hung Lin, Ching-I Huang, Chung-Feng Huang, Ming-Yen Hsieh, Nai-Jen Hou, Zu-Yau Lin, Shinn-Cherng Chen, Jee-Fu Huang, Chia-Yen Dai, Wan-Long Chuang, Ming-Lung Yu
Treatments with pegylated interferon/ribavirin (PEG-IFN/RBV) has been standard-of-care in patients with chronic hepatitis C virus (HCV) (CHC) infection and reimbursed in Taiwan. However, the actual cost-effectiveness remains unclear. We aimed to evaluate a real-world cost-effectiveness for CHC patients treated with PEG-IFN/RBV by using a clinical cohort with linkage to the National Health Insurance Research Database of Taiwan. The total and itemized medical-care expenses of outpatient visits of 117 treatment-naïve CHC patients with linkage to the two million sampling of the National Health Insurance Research Database were collected...
January 2017: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/28088249/interactions-of-human-microglia-cells-with-japanese-encephalitis-virus
#15
Nils Lannes, Viviane Neuhaus, Brigitte Scolari, Solange Kharoubi-Hess, Michael Walch, Artur Summerfield, Luis Filgueira
BACKGROUND: Japanese encephalitis virus (JEV) is a neurotropic flavivirus causing mortality and morbidity in humans. Severe Japanese encephalitis cases display strong inflammatory responses in the central nervous system and an accumulation of viral particles in specific brain regions. Microglia cells are the unique brain-resident immune cell population with potent migratory functions and have been proposed to act as a viral reservoir for JEV. Animal models suggest that the targeting of microglia by JEV is partially responsible for inflammatory reactions in the brain...
January 14, 2017: Virology Journal
https://www.readbyqxmd.com/read/28088235/the-sense-behind-retroviral-anti-sense-transcription
#16
Mamneet Manghera, Alycia Magnusson, Renée N Douville
Retroviruses are known to rely extensively on the expression of viral proteins from the sense proviral genomic strand. Yet, the production of regulatory retroviral proteins from antisense-encoded viral genes is gaining research attention, due to their clinical significance. This report will discuss what is known about antisense transcription in Retroviridae, and provide new information about antisense transcriptional regulation through a comparison of Human Immunodeficiency Virus (HIV), Human T-cell Lymphotrophic Virus (HTLV-1) and endogenous retrovirus-K (ERVK) long terminal repeats (LTRs)...
January 14, 2017: Virology Journal
https://www.readbyqxmd.com/read/28088231/efficacy-of-gabapentin-for-prevention-of-postherpetic-neuralgia-study-protocol-for-a-randomized-controlled-clinical-trial
#17
Manuel Rullán, Oana Bulilete, Alfonso Leiva, Aina Soler, Antonia Roca, María José González-Bals, Patricia Lorente, Joan Llobera
BACKGROUND: Postherpetic neuralgia (PHN) is a chronic neuropathic pain that results from alterations of the peripheral nervous system in areas affected by the herpes zoster virus. The symptoms include pain, paresthesia, dysesthesia, hyperalgesia, and allodynia. Despite the availability of pharmacological treatments to control these symptoms, no treatments are available to control the underlying pathophysiology responsible for this disabling condition. METHODS/DESIGN: Patients with herpes zoster who are at least 50 years old and have a pain score of 4 or higher on a visual analogue scale (VAS) will be recruited...
January 14, 2017: Trials
https://www.readbyqxmd.com/read/28088184/anti-hepatitis-b-virus-hbv-response-of-imiquimod-based-toll-like-receptor-7-ligand-in-hbv-positive-human-hepatocelluar-carcinoma-cell-line
#18
Dipanwita Das, Isha Sengupta, Neelakshi Sarkar, Ananya Pal, Debraj Saha, Manikankana Bandopadhyay, Chandrima Das, Jimmy Narayan, Shivaram Prasad Singh, Sekhar Chakrabarti, Runu Chakravarty
BACKGROUND: Toll like receptors (TLRs) play an important role in innate immunity and various studies suggest that TLRs play a crucial role in pathogenesis of hepatitis B virus (HBV) infection. The present study aims in looking into the status of crucial host and viral gene expression on inciting TLR7. METHODS: The transcription of TLR7 pathway signaling molecules and HBV DNA viral load were quantified by Real Time-PCR after stimulation of TLR7 with its imiquimod based ligand, R837...
January 14, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28088167/randomized-double-blind-placebo-controlled-clinical-trial-to-assess-the-safety-and-effectiveness-of-a-novel-dual-action-oral-topical-formulation-against-upper-respiratory-infections
#19
Pranab K Mukherjee, Frank Esper, Ken Buchheit, Karen Arters, Ina Adkins, Mahmoud A Ghannoum, Robert A Salata
BACKGROUND: Current prevention options for upper respiratory infections (URIs) are not optimal. We conducted a randomized, double-blinded, placebo-controlled pilot clinical trial to evaluate the safety and efficacy of ARMS-I™ (currently marketed as Halo™) in the prevention of URIs. METHODS: ARMS-I is patented novel formulation for the prevention and treatment of influenza, comprising a broad-spectrum antimicrobial agent (cetylpyridinium chloride, CPC) and components (glycerin and xanthan gum) that form a barrier on the host mucosa, thus preventing viral contact and invasion...
January 14, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28088125/computational-methods-for-analyzing-conformational-variability-of-macromolecular-complexes-from-cryo-electron-microscopy-images
#20
REVIEW
Slavica Jonić
Thanks to latest technical advances in cryo-electron microscopy (cryo-EM), structures of macromolecular complexes (viruses, ribosomes, etc.) are now often obtained at near-atomic resolution. Also, studies of conformational changes of complexes, in connection with their function, are gaining ground. Conformational variability analysis is usually done by classifying images in a number of discrete classes supposedly representing all conformational states present in the specimen. However, discrete classes cannot be meaningfully defined when the conformational change is continuous (the specimen contains a continuum of states instead of a few discrete states)...
January 11, 2017: Current Opinion in Structural Biology
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