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https://www.readbyqxmd.com/read/29691470/crispr-cas9-genome-editing-technology-significantly-accelerated-herpes-simplex-virus-research
#1
REVIEW
Dong Wang, Xian-Wang Wang, Xiao-Chun Peng, Ying Xiang, Shi-Bao Song, Ying-Ying Wang, Lin Chen, Victoria W Xin, Yan-Ning Lyu, Jiafu Ji, Zhao-Wu Ma, Cheng-Bin Li, Hong-Wu Xin
Herpes simplex viruses (HSVs) are important pathogens and ideal for gene therapy due to its large genome size. Previous researches on HSVs were hampered because the technology to construct recombinant HSVs were based on DNA homology-dependent repair (HDR) and plaque assay, which are inefficient, laborious, and time-consuming. Fortunately, clustered regularly interspaced short palindromic repeat/CRISPR-associated protein 9 (CRISPR/Cas9) recently provided the possibility to precisely, efficiently, and rapidly edit genomes and indeed is successfully being used in HSVs...
April 25, 2018: Cancer Gene Therapy
https://www.readbyqxmd.com/read/29690521/the-gaba-a-receptor-%C3%AE-2-subunit-activates-a-neuronal-tlr4-signal-in-the-ventral-tegmental-area-that-regulates-alcohol-and-nicotine-abuse
#2
Irina Balan, Kaitlin T Warnock, Adam Puche, Marjorie C Gondre-Lewis, Harry June, Laure Aurelian
Alcoholism initiates with episodes of excessive alcohol drinking, known as binge drinking, which is one form of excessive drinking (NIAAA Newsletter, 2004) that is related to impulsivity and anxiety (Ducci et al., 2007; Edenberg et al., 2004) and is also predictive of smoking status. The predisposition of non-alcohol exposed subjects to initiate binge drinking is controlled by neuroimmune signaling that includes an innately activated neuronal Toll-like receptor 4 (TLR4) signal. This signal also regulates cognitive impulsivity, a heritable trait that defines drug abuse initiation...
April 21, 2018: Brain Sciences
https://www.readbyqxmd.com/read/29690512/synchronized-high-speed-vision-sensor-network-for-expansion-of-field-of-view
#3
Akihito Noda, Satoshi Tabata, Masatoshi Ishikawa, Yuji Yamakawa
We propose a 500-frames-per-second high-speed vision (HSV) sensor network that acquires frames at a timing that is precisely synchronized across the network. Multiple vision sensor nodes, individually comprising a camera and a PC, are connected via Ethernet for data transmission and for clock synchronization. A network of synchronized HSV sensors provides a significantly expanded field-of-view compared with that of each individual HSV sensor. In the proposed system, the shutter of each camera is controlled based on the clock of the PC locally provided inside the node, and the shutters are globally synchronized using the Precision Time Protocol (PTP) over the network...
April 21, 2018: Sensors
https://www.readbyqxmd.com/read/29689425/the-lysosome-system-is-severely-impaired-in-a-cellular-model-of-neurodegeneration-induced-by-hsv-1-and-oxidative-stress
#4
Henrike Kristen, Isabel Sastre, Teresa Muñoz-Galdeano, Maria Recuero, Jesus Aldudo, Maria J Bullido
The causal agent(s) and molecular mechanisms of Alzheimer's disease (AD) remain unclear. Mounting evidence suggests that herpes simplex virus type 1 (HSV-1) infection is involved in the AD pathogenesis. Oxidative stress (OS) may also be crucial in the AD development. Our group previously reported that both HSV-1 and OS trigger the appearance of AD-type neurodegeneration markers. The main aim of the present study was to identify the mechanisms involved in this triggering. Expression studies revealed the involvement of a set of OS-regulated genes in HSV-1-infected cells and in cells harboring the Swedish mutation of the amyloid beta precursor protein gene...
March 29, 2018: Neurobiology of Aging
https://www.readbyqxmd.com/read/29688863/infection-status-of-human-parvovirus-b19-cytomegalovirus-and-herpes-simplex-virus-1-2-in-women-with-first-trimester-spontaneous-abortions-in-chongqing-china
#5
Ya-Ling Gao, Zhan Gao, Miao He, Pu Liao
BACKGROUND: Infection with Parvovirus B19 (B19V), Cytomegalovirus (CMV) and Herpes Simplex Virus-1/2 (HSV-1/2) may cause fetal loses including spontaneous abortion, intrauterine fetal death and non-immune hydrops fetalis. Few comprehensive studies have investigated first-trimester spontaneous abortions caused by virus infections in Chongqing, China. Our study intends to investigate the infection of B19V, CMV and HSV-1/2 in first-trimester spontaneous abortions and the corresponding immune response...
April 23, 2018: Virology Journal
https://www.readbyqxmd.com/read/29688572/enhanced-expression-of-ifi16-and-rig-i-in-human-third-trimester-placentas-following-hsv-1-infection
#6
Agnieszka Jabłońska, Mirosława Studzińska, Patrycja Suski, Jarosław Kalinka, Edyta Paradowska
The innate immune response in the placenta depends on the ability of maternal immune cells and fetal trophoblast cells to detect and eliminate invading pathogens through germline-encoded pattern recognition receptors (PRRs). In the present study, we analyzed the transcripts and protein expression of IFI16, MDA5, RIG-I, and TLR3 in third-trimester human placentas and investigated cytokine profiles generated during herpes simplex type 1 (HSV-1) infection. Decidual and chorionic villous biopsies (38-42 week of gestation) were obtained from healthy women immediately after a cesarean section...
April 24, 2018: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/29688441/interference-by-rheumatoid-factor-in-immunoglobulin-m-class-herpes-simplex-virus-types-1-2-immunoassays
#7
Jingjing Pan, Gaili Meng, Bin Huang, Liangzi Lan, Liang Ming
Herpes simplex virus (HSV) types 1 + 2 immunoglobulin (Ig)M antibodies assays are important tools for diagnosing pregnant women and their newborns. However, it is unclear whether high levels of rheumatoid factor (RF) interfere with serological methods used to test for HSV types 1 + 2 type-specific IgM antibodies. We report a case of a false-positive result for HSV 1 + 2 IgM antibodies due to gross overestimation of RF by enzyme-linked immunosorbent assay (ELISA). This result occurred in a 25-year-old Han Chinese woman who was 28 weeks pregnant with a fetus (sex of fetus unknown)...
April 24, 2018: Laboratory Medicine
https://www.readbyqxmd.com/read/29677136/cytoplasmic-translocation-of-nucleolar-protein-nop53-promotes-viral-replication-by-suppressing-host-defense
#8
Wen Meng, Shi-Chong Han, Cui-Cui Li, Hui-Jun Dong, Jian-Yu Chang, Hwa-Chain Robert Wang, Xiao-Jia Wang
NOP53 is a tumor suppressor protein located in the nucleolus and is translocated to the cytoplasm during infection by vesicular stomatitis virus (VSV) and herpes simplex virus type 1 (HSV-1), as shown in our previous study. Cytoplasmic NOP53 interacts with the retinoic acid-inducible gene I (RIG-I) to remove its K63-linked ubiquitination, leading to attenuation of type I interferon IFN-β. In the present study, we found no obvious translocation of NOP53 in infection by a mutant virus lacking ICP4 (HSV-1/d120, replication inadequate)...
April 20, 2018: Viruses
https://www.readbyqxmd.com/read/29673001/inhibition-of-hsv-2-infection-by-pure-compounds-from-thymus-capitatus-extract-in-vitro
#9
Marwa Mekni Toujani, Massimo Rittà, Andrea Civra, Salvatore Genovese, Francesco Epifano, Abdeljelil Ghram, David Lembo, Manuela Donalisio
No abstract text is available yet for this article.
April 19, 2018: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/29671118/application-of-computer-aided-tongue-inspection-for-preliminary-screening-of-esophageal-cancer
#10
Jin-Long Duan, Bo Deng, Guo-Hui Song, Zhi-Feng Chen, Yan-Wei Gong, Yu-Hua He, Li-Qun Jia
OBJECTIVE: To differentiate patients with esophageal cancer or premalignant lesions from the high-risk population for preliminary screening of esophageal cancer using a feature index determined by a computer-aided tongue information acquisition and processing system (DS01-B). METHODS: Totally, 213 patients diagnosed with esophageal cancer or premalignant lesions and 2,840 normal subjects were collected including primarily screened and reexamined, all of them were confirmed with histological examinations...
April 17, 2018: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29669832/comparative-analysis-of-ul16-mutants-derived-from-multiple-strains-of-hsv-2-and-hsv-1-reveals-species-specific-requirements-for-the-ul16-protein
#11
Jie Gao, Xiaohu Yan, Bruce W Banfield
Orthologs of the herpes simplex virus (HSV) UL16 gene are conserved throughout the Herpesviridae Because of this conservation, one might expect that these proteins perform similar functions for all herpesviruses. Previous studies on a UL16 null mutant derived from HSV-2 strain 186 revealed a roughly 100-fold replication defect and a critical role for UL16 in the nuclear egress of capsids. These findings were in stark contrast to what has been observed with UL16 mutants of HSV-1 and pseudorabies virus where roughly 10-fold replication deficiencies were reported that were accompanied by defects in the secondary envelopment of cytoplasmic capsids...
April 18, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29669784/pd-l1-b7-h1-inhibits-viral-clearance-by-macrophages-in-hsv-1-infected-corneas
#12
Sohyun Jeon, Alexander M Rowe, Kate L Carroll, Stephen A K Harvey, Robert L Hendricks
Immune privilege helps protect the cornea from damaging inflammation but can also impair pathogen clearance from this mucosal surface. Programmed death-ligand 1 (PD-L1 or B7-H1) contributes to corneal immune privilege by inhibiting the function of a variety of immune cells. We asked whether programmed death-1 (PD-1)/PD-L1 interaction regulates HSV-1 clearance from infected corneas. We show that PD-L1 is constitutively expressed in the corneal epithelium and is upregulated upon HSV-1 corneal infection, with peak expression on CD45+ cells NK cells, dendritic cells, neutrophils, and macrophages and CD45- corneal epithelial cells at 4 d postinfection (dpi)...
April 18, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29668948/combined-infection-of-human-herpes-viruses-a-risk-factor-for-subsequent-colectomy-in-ulcerative-colitis
#13
Shuhei Hosomi, Kenji Watanabe, Yu Nishida, Hirokazu Yamagami, Tomomi Yukawa, Koji Otani, Yasuaki Nagami, Fumio Tanaka, Koichi Taira, Noriko Kamata, Tetsuya Tanigawa, Masatsugu Shiba, Toshio Watanabe, Hisashi Nagahara, Kiyoshi Maeda, Yasuhiro Fujiwara
Background: Little is known about the prevalence and pathogenicity of human herpes viruses except for cytomegalovirus (CMV) in patients with inflammatory bowel disease (IBD). The aim of this study was to determine the prevalence of human herpes viruses on colonic mucosa in patients with IBD and assess the long-term outcomes in these patients. Methods: We examined the colonic mucosal specimens from 66 patients with ulcerative colitis (UC), 54 patients with Crohn's disease (CD), and 29 healthy patients to identify the 6 most common types of human herpes virus, using multiplex polymerase chain reaction (PCR) technique...
April 13, 2018: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/29668856/seroprevalence-of-herpes-simplex-virus-types-1-and-2-among-pregnant-women-and-sexually-active-non-pregnant-women-in-the-united-states
#14
Monica E Patton, Kyle Bernstein, Gui Liu, Akbar Zaidi, Lauri E Markowitz
Background: Neonatal herpes is a rare, devastating consequence of herpes simplex virus type 1 (HSV-1) or 2 (HSV-2) infection during pregnancy. The risk of neonatal infection is higher among pregnant women seronegative for HSV-1 or HSV-2 who acquire their first HSV infection near delivery. Methods: We estimated HSV-1 and HSV-2 seroprevalence among pregnant women aged 20-39 years in 1999-2014, assessed HSV seroprevalence changes between 1999-2006 and 2007-2014, and compared HSV seroprevalence between pregnant women and sexually active, non-pregnant women aged 20-39 years in 2007-2014 using National Health and Nutrition Examination Survey data...
April 16, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29666644/questioning-the-extreme-neurovirulence-of-monkey-b-virus-macacine-alphaherpesvirus-1
#15
REVIEW
R Eberle, L Jones-Engel
Monkey B virus ( Macacine alphaherpesvirus 1; BV) occurs naturally in macaques of the genus Macaca, which includes rhesus and long-tailed (cynomolgus) monkeys that are widely used in biomedical research. BV is closely related to the human herpes simplex viruses (HSV), and BV infections in its natural macaque host are quite similar to HSV infections in humans. Zoonotic BV is extremely rare, having been diagnosed in only a handful of North American facilities with the last documented case occurring in 1998. However, BV is notorious for its neurovirulence since zoonotic infections are serious, usually involving the central nervous system, and are frequently fatal...
2018: Advances in Virology
https://www.readbyqxmd.com/read/29658163/a-novel-oncolytic-herpes-capable-of-cell-specific-transcriptional-targeting-of-cd133%C3%A2-cancer-cells-induces-significant-tumor-regression
#16
Kaoru Terai, Danse Bi, Zhengian Liu, Emma Borrego-Diaz, Kyle Kimura, Zohreh Sanaat, Roya Dolatkhah, Mina Soleimani, Christopher Jones, Judith Larson, Allison Bright, Tuba Esfandyari, Faris Farassati
The topic of cancer stem cells is of significant importance due to its implications in our understanding of the tumor biology, as well as the development of novel cancer therapeutics. However, the question of whether targeting cancer stem cells can hamper the growth of tumors remains mainly unanswered due to the lack of specific agents for this purpose. In order to address this issue, we have developed the first mutated version of herpes simplex virus-1 (HSV-1) that is transcriptionally targeted against CD133+ cells...
April 15, 2018: Stem Cells
https://www.readbyqxmd.com/read/29655629/intramuscular-vaccination-of-guinea-pigs-with-the-live-attenuated-human-herpes-simplex-vaccine-vc2-stimulates-a-transcriptional-profile-of-vaginal-th17-and-regulatory-tr1-responses
#17
Brent A Stanfield, Paul J F Rider, John Caskey, Fabio Del Piero, Konstantin G Kousoulas
Herpes simplex virus is a common causative agent of oral and genital diseases. Novel vaccines and therapeutics are needed to combat herpes infections especially after the failure of subunit vaccines in human clinical trials. We have shown that the live-attenuated HSV-1 VC2 vaccine strain is unable to establish latency in vaccinated animals and produces a robust immune response capable of completely protecting mice against lethal vaginal HSV-1 or HSV-2 infections. The guinea pig represents the best small animal model of genital HSV-2 disease...
April 11, 2018: Vaccine
https://www.readbyqxmd.com/read/29652804/cerebrospinal-fluid-concentrations-of-biogenic-amines-potential-biomarkers-for-diagnosis-of-bacterial-and-viral-meningitis
#18
Aneela Taj, Nusrat Jamil
Catecholamine and serotonin are biogenic amines (BAs) that serve as neurotransmitters and play an important role in the regulation of cardinal functions that are mainly altered during central nervous system (CNS) infections. A total 92 samples of cerebrospinal fluid (CSF) were classified into 4 groups based on their etiology. In these samples, BAs/neurotransmitters i.e., dopamine (DA), 3,4-dihydroxyphenylacetic acid (DOPAC), homovanillic acid (HVA), and 5-hydroxyindoleacetic acid (5HIAA) were detected and quantified by high performance liquid chromatography with electrochemical detection (HPLC-EC) to determine the neurophysiology of the CNS infections by bacteria ( Listeria monocytogenes (Lm) and Neisseria meningitidis (Nm)) and herpes simplex virus (HSV)...
April 13, 2018: Pathogens
https://www.readbyqxmd.com/read/29643250/neuronal-subtype-determines-hsv-1-latency-associated-transcript-lat-promoter-activity-during-latency
#19
Jorge Ruben Cabrera, Audra J Charron, David A Leib
Herpes simplex virus (HSV) latency in neurons remains poorly understood, and the heterogeneity of the sensory nervous system complicates mechanistic studies. In this study, we used primary culture of adult trigeminal ganglion (TG) mouse neurons in microfluidic devices, and an in vivo model, to examine the subtypes of sensory neurons involved in HSV latency. HSV-infected neurofilament heavy-positive neurons (NefH+ ) were more likely to express Latency-Associated Transcripts (LATs) relative to infected neurofilament heavy-negative neurons (NefH- )...
April 11, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29642603/acyclovir-loaded-chitosan-nanospheres-from-nano-emulsion-templating-for-the-topical-treatment-of-herpesviruses-infections
#20
Manuela Donalisio, Federica Leone, Andrea Civra, Rita Spagnolo, Ozgen Ozer, David Lembo, Roberta Cavalli
Acyclovir is not a good candidate for passive permeation since its polarity and solubility limit is partitioning into the stratum corneum. This work aims to develop a new topical formulation for the acyclovir delivery. New chitosan nanospheres (NS) were prepared by a modified nano-emulsion template method. Chitosan NS were characterized by Dynamic Light Scattering (DLS), Transmission Electron Microscopy (TEM), and an in vitro release study. The in vitro skin permeation experiment was carried out using Franz cells and was equipped with porcine skin...
April 10, 2018: Pharmaceutics
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