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https://www.readbyqxmd.com/read/28797967/multipurpose-tenofovir-disoproxil-fumarate-electrospun-fibers-for-the-prevention-of-hiv-1-and-hsv-2-infections-in-vitro
#1
Kevin M Tyo, Hung R Vuong, Danial A Malik, Lee B Sims, Houda Alatassi, Jinghua Duan, Walter H Watson, Jill M Steinbach-Rankins
Sexually transmitted infections affect hundreds of millions of people worldwide. Both human immunodeficiency virus (HIV-1 and -2) and herpes simplex virus-2 (HSV-2) remain incurable, urging the development of new prevention strategies. While current prophylactic technologies are dependent on strict user adherence to achieve efficacy, there is a dearth of delivery vehicles that provide discreet and convenient administration, combined with prolonged-delivery of active agents. To address these needs, we created electrospun fibers (EFs) comprised of FDA-approved polymers, poly(lactic-co-glycolic acid) (PLGA) and poly(DL-lactide-co-ε-caprolactone) (PLCL), to provide sustained-release and in vitro protection against HIV-1 and HSV-2...
August 7, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28794039/the-ul21-tegument-protein-of-herpes-simplex-virus-type-1-is-differentially-required-for-the-syncytial-phenotype
#2
Akua Sarfo, Jason Starkey, Erica Mellinger, Dan Zhang, Pooja Chadha, Jillian Carmichael, John W Wills
The initial goal of this study was to re-examine the requirement of UL21 for herpes simplex virus 1 (HSV-1) replication. Previous studies suggested that UL21 is dispensable for replication in cell cultures, but a recent report on HSV-2 challenges those findings. As was done for the HSV-2 study, a UL21-null virus was made and propagated on complementing cells to discourage selection of compensating mutations. This HSV-1 mutant was able to replicate in non-complementing cells, even at a low MOI, though a reduction in titer was observed...
August 9, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28748667/a-model-of-genital-herpes-simplex-virus-type-1-infection-in-rhesus-macaques
#3
Meropi Aravantinou, Ines Frank, Geraldine Arrode-Bruses, Moriah Szpara, Brooke Grasperge, James Blanchard, Agegnehu Gettie, Nina Derby, Elena Martinelli
BACKGROUND: Although HSV-2 is the major cause of genital lesions, HSV-1 accounts for half of new cases in developed countries. METHODS: Three healthy SHIV-SF162P3-infected Indian rhesus macaques were inoculated with 4×10(8) pfu of HSV-1 twice, with the second inoculation performed after the vaginal mucosa was gently abraded with a cytobrush. RESULTS: HSV-1 DNA was detected in vaginal swabs 5 days after the second but not the first inoculation in all three macaques...
August 2017: Journal of Medical Primatology
https://www.readbyqxmd.com/read/28747200/rubella-herpes-simplex-virus-type-2-and-preeclampsia
#4
Shimos A Alshareef, Ahmed M Eltom, Abubakr M Nasr, Hamdan Z Hamdan, Ishag Adam
BACKGROUND: Preeclampsia is a major health problem. Although, the pathophysiology of preeclampsia is not fully understood, there are recent studies on association between infections and preeclampsia. OBJECTIVE: The aim of the present study was to investigate the association between maternal seropositivity of rubella, Herpes simplex virus type 2 (HSV-2) and preeclampsia. METHOD: A case -controls study (90 women in each arm) was conducted at Saad Abualila Maternity Hospital, Khartoum, Sudan...
July 26, 2017: Virology Journal
https://www.readbyqxmd.com/read/28747059/rectal-inflammatory-stenosis-secondary-to-chlamydia-trachomatis-a-case-report
#5
Luis Eduardo Pérez Sánchez, Moisés Hernández Barroso, Guillermo Hernández Hernández
The rectal inflammatory originated strictures constitute a rare cause of intestinal obstruction. We present a 30-year-old male patient with a history of HIV and protctitis caused by Chalmydia trachomatis and HSV-2, in which develops a low intestinal obstruction refractory to medical treatment. Surgery was performed with good clinical evolution. The medical treatment constitutes the fundamental basis of the therapy in these patients. Despite that, when fibrotic stenoses are not treatable medical or endoscopically, they often require surgical treatment...
July 27, 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28745327/seminal-vesicle-fluid-increases-the-efficacy-of-intravaginal-hsv-2-vaccination
#6
A Varese, F Remes Lenicov, M Gonzalez Prinz, A Paletta, G Ernst, C Maeto, A Merlotti, J Sabatte, S Símula, M P Holgado, E Dantas, J Geffner, A Ceballos
Once considered merely as a vehicle for spermatozoa, it is now clear that seminal plasma (SP) induces a variety of biological actions on the female reproductive tissues able to modulate the immune response against paternal antigens. To our knowledge, the influence of SP on the immune response against sexually transmitted pathogens has not been yet evaluated. We here analyzed whether the seminal vesicle fluid (SVF), which contributes almost 60% of the SP volume in mice, could modulate the immune response against herpes simplex virus type 2 (HSV-2)...
July 26, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28736976/living-donor-liver-transplantation-for-neonatal-fulminant-hepatitis-due-to-herpes-simplex-virus-infection
#7
Rodrigo Vincenzi, Eduardo A Fonseca, Karina M O Roda, Gilda Porta, Helry L Candido, Marcel R Benavides, Katia R M Leite, Rogerio C Afonso, Plinio Turine-Neto, Cristiane M F Ribeiro, Paulo Chapchap, João Seda-Neto
Although rare, ALF caused by disseminated HSV infection is associated with high mortality in the neonatal population. This condition is often diagnosed relatively late due to the absence of specific signs. We present a case involving a neonate with ALF submitted to living donor liver transplantation without a prior diagnosis. The patient had no skin or mucosal lesions, and IgM serology was negative for HSV-1 and HSV-2. Immunohistochemical staining of the liver explant was positive for herpes virus infection, and the patient subsequently received antiviral drug treatment, with a good outcome...
July 23, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28734843/a-high-resolution-melting-hrm-technology-based-assay-for-cost-efficient-clinical-detection-and-genotyping-of-herpes-simplex-virus-hsv-1-and-hsv-2
#8
M Lieveld, A Carregosa, I Benoy, N Redzic, M Berth, D Vanden Broeck
Genital herpes can be caused by two very similar viruses, herpes simplex virus (HSV)-1 or HSV-2. These two HSV types cannot be distinguished clinically, but genotyping is recommended in the first-episodes of genital herpes to guide counselling and management. Quantitative polymerase chain reaction (qPCR) is the preferred diagnostic method for HSV typing. However, commercial qPCR methods use expensive fluorescent labeled probes for detection. Furthermore, most low-cost methods are not able to differentiate between HSV-1 and -2...
July 19, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28733854/process-evaluation-of-a-clinical-trial-to-test-school-support-as-hiv-prevention-among-orphaned-adolescents-in-western-kenya
#9
Denise Dion Hallfors, Hyunsan Cho, Shane Hartman, Isabella Mbai, Carolyne Atieno Ouma, Carolyn Tucker Halpern
Orphaned adolescents are a large and vulnerable population in sub-Saharan Africa, at higher risk for HIV than non-orphans. Yet prevention of new infection is critical for adolescents since they are less likely than adults to enter and remain in treatment and are the only age group with rising AIDS death rates. We report process evaluation for a randomized controlled trial (RCT) testing support to stay in school (tuition, uniform, nurse visits) as an HIV prevention strategy for orphaned Kenyan adolescents. The RCT found no intervention effect on HIV/HSV-2 biomarker outcomes...
July 21, 2017: Prevention Science: the Official Journal of the Society for Prevention Research
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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 24, 2017: Analyst
https://www.readbyqxmd.com/read/28704950/structure-activity-relationships-of-acyclic-selenopurine-nucleosides-as-antiviral-agents
#16
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
#17
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
#18
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
#19
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
#20
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
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