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https://www.readbyqxmd.com/read/28720717/sting-is-an-essential-mediator-of-the-ku70-mediated-production-of-ifn-%C3%AE-1-in-response-to-exogenous-dna
#1
Hongyan Sui, Ming Zhou, Hiromi Imamichi, Xiaoli Jiao, Brad T Sherman, H Clifford Lane, Tomozumi Imamichi
We previously identified Ku70, a subunit of a DNA repair protein complex, as a cytosolic DNA sensor that induces the production of interferon-λ1 (IFN-λ1) by human primary cells and cell lines. IFN-λ1 is a type III IFN and has similar antiviral activity to that of the type I IFNs (IFN-α and IFN-β). We observed that human embryonic kidney (HEK) 293T cells, which are deficient in the innate immune adaptor protein STING (stimulator of IFN genes), did not produce IFN-λ1 in response to DNA unless they were reconstituted with STING...
July 18, 2017: Science Signaling
https://www.readbyqxmd.com/read/28720446/acceptability-of-multipurpose-human-papillomavirus-vaccines-among-providers-and-mothers-of-adolescent-girls-a-mixed-methods-study-in-five-countries
#2
Nadja A Vielot, Shoshana K Goldberg, Gregory Zimet, Sara B Smith, Mary Anne McDonald, Silvina Ramos, Karen Morgan, Chan Joo Kim, Karin L Richter, Merce Peris, Kevin J Whaley, Jennifer S Smith
INTRODUCTION: Multipurpose vaccines (MPVs) could be formulated to prevent multiple sexually transmitted infections simultaneously. Little is known about acceptability of MPVs among vaccine health care providers (HCPs) or mothers of adolescent girls. METHODS: 151 adolescent vaccine providers and 118 mothers of adolescent girls aged 9-14 were recruited from five geographically-diverse countries: Argentina, Malaysia, South Africa, South Korea, and Spain. We assessed providers' preferences for single-purpose human papillomavirus (HPV) vaccine versus MPVs (including HPV+herpes simplex virus (HSV)-2, HPV+HIV, or HPV+HSV-2+HIV) via quantitative surveys...
June 2017: Papillomavirus Research
https://www.readbyqxmd.com/read/28716140/modelling-infectious-diseases-with-relapse-a-case-study-of-hsv-2
#3
Jinliang Wang, Xiaoqing Yu, Heidi L Tessmer, Toshikazu Kuniya, Ryosuke Omori
BACKGROUND: Herpes Simplex Virus Type 2 (HSV-2) is one of the most common sexually transmitted diseases. Although there is still no licensed vaccine for HSV-2, a theoretical investigation of the potential effects of a vaccine is considered important and has recently been conducted by several researchers. Although compartmental mathematical models were considered for each special case in the previous studies, as yet there are few global stability results. RESULTS: In this paper, we formulate a multi-group SVIRI epidemic model for HSV-2, which enables us to consider the effects of vaccination, of waning vaccine immunity, and of infection relapse...
July 17, 2017: Theoretical Biology & Medical Modelling
https://www.readbyqxmd.com/read/28711653/highly-conserved-intragenic-hsv-2-sequences-results-from-next-generation-sequencing-of-hsv-2-ul-and-us-regions-from-genital-swabs-collected-from-3-continents
#4
Christine Johnston, Amalia Magaret, Pavitra Roychoudhury, Alexander L Greninger, Anqi Cheng, Kurt Diem, Matthew P Fitzgibbon, Meei-Li Huang, Stacy Selke, Jairam R Lingappa, Connie Celum, Keith R Jerome, Anna Wald, David M Koelle
INTRODUCTION: Understanding the variability in circulating herpes simplex virus type 2 (HSV-2) genomic sequences is critical to the development of HSV-2 vaccines. METHODS: Genital lesion swabs containing ≥ 10(7)log10 copies HSV DNA collected from Africa, the USA, and South America underwent next-generation sequencing, followed by K-mer based filtering and de novo genomic assembly. Sites of heterogeneity within coding regions in unique long and unique short (UL_US) regions were identified...
July 13, 2017: Virology
https://www.readbyqxmd.com/read/28711432/inactivated-orf-virus-shows-disease-modifying-antiviral-activity-in-a-guinea-pig-model-of-genital-herpesvirus-infection
#5
Astrid Friebe, Angela Siegling, Olaf Weber
BACKGROUND: Inactivated Orf virus (iORFV) has been used as a preventative as well as a therapeutic immunomodulator in veterinary medicine in different species. iORFV elicits strong effects on cytokine secretion in mice and human immune cells leading to an auto-regulated loop of initial up-regulation of inflammatory and Th1-related cytokines followed by Th2-related cytokines that attenuate immunopathology. The therapeutic potential of iORFV has been recognized in several models for difficult-to-treat disease areas such as chronic viral diseases, liver fibrosis or various forms of cancer...
June 27, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28708188/validation-of-a-membrane-touch-biosensor-for-the-qualitative-detection-of-igg-class-antibodies-to-herpes-simplex-virus-type-2
#6
Tony Loughman, Baljit Singh, Brian Seddon, Philip Noone, Padmanabhan Santhosh
A novel type of biosensor was assessed for application to the qualitative determination of circulating antibodies to herpes simplex virus type 2 (HSV-2). The device utilises a high activity HSV-2 type specific gG2 antigen for antibody capture and commercially available ELISA reagents. The study compares the diagnostic performance of a prototype HSV-2 biochip to well-established in vitro tests routinely applied in clinical procedures. A panel of human serum samples (n = 60) previously characterised for HSV-2 serological status using the DiaSorin LIAISON® HSV-2 chemiluminescent immunoassay were assayed on the HSV-2 biochip and the Focus Diagnostics HerpeSelect® 2 ELISA IgG kit to determine concordance with the predicate test method...
July 14, 2017: Analyst
https://www.readbyqxmd.com/read/28704950/structure-activity-relationships-of-acyclic-selenopurine-nucleosides-as-antiviral-agents
#7
Pramod K Sahu, Tamima Umme, Jinha Yu, Gyudong Kim, Shuhao Qu, Siddhi D Naik, Lak Shin Jeong
A series of acyclic selenopurine nucleosides 3a-f and 4a-g were synthesized based on the bioisosteric rationale between oxygen and selenium, and then evaluated for antiviral activity. Among the compounds tested, seleno-acyclovir (4a) exhibited the most potent anti-herpes simplex virus (HSV)-1 (EC50 = 1.47 µM) and HSV-2 (EC50 = 6.34 µM) activities without cytotoxicity up to 100 µM, while 2,6-diaminopurine derivatives 4e-g exhibited significant anti-human cytomegalovirus (HCMV) activity, which is slightly more potent than the guanine derivative 4d, indicating that they might act as prodrugs of seleno-ganciclovir (4d)...
July 12, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28701399/selective-expression-of-ccr10-and-cxcr3-by-circulating-human-hsv-specific-cd8-t-cells
#8
Michael T Hensel, Tao Peng, Anqi Cheng, Stephen C De Rosa, Anna Wald, Kerry J Laing, Lichen Jing, Lichun Dong, Amalia S Magaret, David M Koelle
Herpes simplex virus type (HSV) infection is restricted to epithelial cells and neurons and is controlled by CD8 T-cells. These cells both traffic to epithelial sites of recurrent lytic infection and to ganglia, and persist at the dermal-epidermal junction for up to 12 weeks after lesion resolution. We previously showed that cutaneous lymphocyte-associated antigen (CLA), a functional E-selectin ligand (ESL), is selectively expressed on circulating HSV-2-specific CD8 T-cells. CLA/ESL mediates adhesion of T-cells to inflamed vascular endothelium...
July 12, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28698721/is-herpes-simplex-virus-hsv-a-sign-of-encephalitis-in-iranian-newborns-prevalence-of-hsv-infection-in-pregnant-women-in-iran-a-systematic-review-and-meta-analysis
#9
REVIEW
Masoumeh Arabsalmani, Meysam Behzadifar, Hamid Reza Baradaranmd, Mansoureh Toghae, Gholam Beyranvand, Alireza Olyaeemanesh, Masoud Behzadifar
OBJECTIVE: Herpes Simplex virus (HSV) is one of the most common sexually transmitted diseases in the world. This study aimed to determine the prevalence of herpes simplex virus in pregnant women in Iran. MATERIALS & METHODS: A systematic literature review was conducted to study the HSV subtypes in Persian and English papers through several databases. We searched Pub Med, Scopus, Ovid, Science Direct and national databases as Magiran, Iranmedex and Science Information Database (SID) up to October 2015...
2017: Iranian Journal of Child Neurology
https://www.readbyqxmd.com/read/28692544/the-effect-of-school-attendance-and-school-dropout-on-incident-hiv-and-hsv-2-among-young-women-in-rural-south-africa-enrolled-in-hptn-068
#10
Marie C D Stoner, Audrey Pettifor, Jessie K Edwards, Allison E Aiello, Carolyn T Halpern, Aimée Julien, Amanda Selin, Rhian Twine, James P Hughes, Jing Wang, Yaw Agyei, F Xavier Gomez-Olive, Ryan G Wagner, Catherine Macphail, Kathleen Kahn
OBJECTIVE: To estimate the association between school attendance, school dropout, and risk of incident HIV and HSV-2 infection among young women. DESIGN: We used longitudinal data from a randomized controlled trial in rural Mpumalanga province, South Africa, to assess the association between school days attended, school dropout and incident HIV and HSV-2 in young women aged 13-23 years. METHODS: We examined inverse probability of exposure weighted survival curves and used them to calculate 1...
July 7, 2017: AIDS
https://www.readbyqxmd.com/read/28688377/no-role-of-herpes-simplex-virus-type-2-hsv-2-infection-on-hiv-progression-in-na%C3%A3-ve-hiv-patients
#11
Minoo Mohraz, Arezoo Aghakhani, Saeedeh Moayedi-Nia, Mohammad Banifazl, Alireza Janbakhsh, Setareh Mamishi, Afsaneh Karami, Anahita Bavand, Pegah Mirzapour, Amitis Ramezani
Background: Herpes simplex virus type 2 (HSV-2) is a common infection in human immunodeficiency virus (HIV) patients and may accelerate HIV progression by rising HIV viral load and decreasing CD4 count. However, the available data regarding the influence of HSV-2 seropositivity on HIV progression in HIV individuals are inconclusive. Therefore, we aimed to determine HSV-2 seroprevalence in naïve HIV patients and normal controls and also investigate the relation of HIV viral load and CD4 count with HSV-2 seropositivity...
July 9, 2017: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/28681331/topical-delivery-of-coumestrol-from-lipid-nanoemulsions-thickened-with-hydroxyethylcellulose-for-antiherpes-treatment
#12
Débora Fretes Argenta, Juliana Bidone, Letícia Scherer Koester, Valquíria Link Bassani, Cláudia Maria Oliveira Simões, Helder Ferreira Teixeira
We have recently shown that coumestrol, an isoflavonoid-like compound naturally occurring in soybeans, alfafa, and red clover, inhibited Herpes Simplex Virus types 1 (HSV-1) and 2 (HSV-2) replication. In this study, we designed coumestrol formulations in an attempt to enable its topical delivery to mucosa tissues. Physicochemical and microscopic examinations suggested that coumestrol was efficiently incorporated in positively-charged nanoemulsions dispersed in a hydroxyethylcellulose gel. The higher coumestrol flux through excised porcine esophageal mucosa was detected from nanoemulsions composed by a fluid phospholipid (dioleylphosphocholine, DOPC) in comparison with that of a rigid one (distearoylphosphocholine, DSPC) in two mucosa conditions (intact and injured)...
July 5, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28678526/sex-with-older-partners-condomless-anal-sex-and-unrecognized-hiv-infection-among-chinese-men-who-have-sex-with-men
#13
Yingying Ding, Yanqiu Zhou, Chunxin Liu, Xing Liu, Na He
We examined the prevalence of sex with older male partner (SWOMP) and its association with condomless anal intercourse (CAI) with male partners and unrecognized HIV infection among young men who have sex with men (MSM) in Shanghai, China. The analytic sample included 243 MSM who were 18-45 years and HIV negative or of unknown HIV serostatus. Older male partner refers to male sex partner who was at least 10 years older than themselves. Overall, 99 (43.0%) and 50 (20.7%) reported having SWOMP in lifetime and in the last 3 months, respectively...
July 5, 2017: AIDS Care
https://www.readbyqxmd.com/read/28671524/comparison-of-the-antiviral-potential-among-soluble-forms-of-herpes-simplex-virus-type-2-glycoprotein-d-receptors-herpes-virus-entry-mediator-a-nectin-1-and-nectin-2-in-transgenic-mice
#14
Yoshikazu Fujimoto, Yukiko Tomioka, Kinuyo Ozaki, Keiko Takeda, Haruka Suyama, Sayo Yamamoto, Hiroki Takakuwa, Masami Morimatsu, Toshimitsu Uede, Etsuro Ono
Herpesvirus entry mediator A (HVEM), nectin-1 and nectin-2 are cellular receptors of glycoprotein D (gD) of herpes simplex virus type-2 (HSV-2). It has been shown that soluble forms of HSV gD receptors have the antiviral potential in cultured cells and transgenic mice. Here, to compare antiviral potential of soluble forms of HVEM, nectin-1 and nectin-2 against HSV-2 infections in vivo, transgenic mice expressing fusion proteins consisting of the entire ectodomain of HVEM, nectin-1 or nectin-2 and the Fc portion of human IgG (HVEMIg, nectin-1Ig and nectin-2Ig, respectively) were intraperitoneally infected with HSV-2...
July 3, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28663436/keratinocytes-produce-il-17c-to-protect-peripheral-nervous-systems-during-human-hsv-2-reactivation
#15
Tao Peng, R Savanh Chanthaphavong, Sijie Sun, James A Trigilio, Khamsone Phasouk, Lei Jin, Erik D Layton, Alvason Z Li, Colin E Correnti, Willem De van der Schueren, Julio Vazquez, Diana R O'Day, Ian A Glass, David M Knipe, Anna Wald, Lawrence Corey, Jia Zhu
Despite frequent herpes simplex virus (HSV) reactivation, peripheral nerve destruction and sensory anesthesia are rare. We discovered that skin biopsies obtained during asymptomatic human HSV-2 reactivation exhibit a higher density of nerve fibers relative to biopsies during virological and clinical quiescence. We evaluated the effects of HSV infection on keratinocytes, the initial target of HSV replication, to better understand this observation. Keratinocytes produced IL-17c during HSV-2 reactivation, and IL-17RE, an IL-17c-specific receptor, was expressed on nerve fibers in human skin and sensory neurons in dorsal root ganglia...
June 29, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28654651/herpes-simplex-virus-1-and-2-educational-assessment-of-young-adults-in-rural-southwest-virginia
#16
Shantal S Hover, Andrea S Bertke
PURPOSE: Herpes simplex virus 2 (HSV-2) causes genital herpes, one of the most common sexually transmitted infections (STIs) in the U.S. HSV-1, commonly associated with cold sores, is increasing as a cause of genital herpes. Abstinence-only sexual health classes, commonly taught in Virginia, generate young adults who are under-educated in sexual health, increasing STI risks. College students in southwest Virginia were surveyed to assess comprehensiveness of high school health education regarding HSV-1 and HSV-2 and to identify students' preferred methods for STI education...
2017: PloS One
https://www.readbyqxmd.com/read/28651402/-consecutive-cross-sectional-survey-of-prevalence-of-hiv-infection-std-and-related-factors-in-vietnamese-female-sex-workers-at-a-china-vietnam-border-area-2014-2015
#17
J Zhu, R Yuan, D Hu, Z B Zhu, X Yang, N Wang, B Wang
Objective: To investigate the prevalence of HIV infection/STD and related factors in Vietnamese female sex workers (FSWs). Methods: Consecutive cross-sectional surveys were conducted in June 2014, December 2014, May 2015 and November 2015 in Hekou, a county bordering Vietnam in Yunnan province. Convenience sampling were adopted to select 1 058 Vietnamese FSWs aged>16 years. Questionnaire interview were used to collect the information about their demographics, sexual behaviors and drug use. Serum and urine samples were collected for HIV infection/STD detection and drug use test...
May 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28650722/optimized-dna-vaccine-enhanced-by-adjuvant-il28b-induces-protective-immune-responses-against-herpes-simplex-virus-type-2-in-mice
#18
Yan Zhou, Ziyan Wang, Yongqing Xu, Zeqiang Zhang, Rui Hua, Wei Liu, Chunlai Jiang, Yan Chen, Wenying Yang, Wei Kong
Antigen-specific immune responses determine the efficacy of herpes simplex virus type 2 (HSV-2) vaccines. To optimize the immunogenicity of the antigen gD2, we developed the gD2ΔUL25 DNA vaccine encoding HSV-2 glycoprotein D and UL25 gene encoding viral capsid vertex proteins in this study. The gD2 and gD2ΔUL25 DNA vaccines were compared with formalin-inactivated HSV-2 (FI-HSV-2), and results showed a greater protective immune response induced by gD2ΔUL25 than by gD2. Therefore, gD2ΔUL25 was chosen to evaluate further using the IL28B adjuvant...
June 26, 2017: Viral Immunology
https://www.readbyqxmd.com/read/28643679/clinical-and-cerebrospinal-fluid-findings-contribute-to-the-early-differentiation-between-infectious-and-noninfectious-encephalitis
#19
Miguel Wilken, Lucía Ameghino, Ángel Cammarota, Martín A Nogués, Marcelo Del Castillo, Mauricio F Farez
Early recognition and prompt specific treatment are crucial factors influencing the outcome of patients with acute encephalitis. The aim of this study was to determine the main causes of acute encephalitis in our population and to find predictors that may lead to specific diagnosis. Adult patients admitted to our hospital with suspected diagnosis of encephalitis in the period 2006-2013 were included. One hundred and five medical records were analyzed. Eighty-two patients with infectious encephalitis were identified (78% of total cases), 53 (65%) men and 29 (35%) women, mean age 47...
2017: Medicina
https://www.readbyqxmd.com/read/28636866/prevalence-and-risk-factors-of-chlamydia-trachomatis-neisseria-gonorrhoeae-trichomonas-vaginalis-and-other-sexually-transmissible-infections-among-women-attending-antenatal-clinics-in-three-provinces-in-papua-new-guinea-a-cross-sectional-survey
#20
Lisa M Vallely, Pamela Toliman, Claire Ryan, Glennis Rai, Johanna Wapling, Carolyn Tomado, Savarina Huliafi, Gloria Munnull, Patricia Rarau, Suparat Phuanukoonnon, Handan Wand, Peter Siba, Glen D L Mola, John M Kaldor, Andrew J Vallely
Background Papua New Guinea (PNG) is estimated to have among the highest prevalences of HIV and sexually transmissible infections (STIs) of any Asia-Pacific country, and one of the highest burdens of maternal syphilis globally. The prevalence of curable STIs, such as Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG) and Trichomonas vaginalis (TV), among pregnant women in PNG is relatively unknown. METHODS: A cross-sectional bio-behavioural survey to investigate the epidemiology of CT, NG, TV and other STIs among pregnant women in three provinces of PNG was undertaken...
October 2016: Sexual Health
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