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herpes simplex encephalitis : from virus to therapy.herpes simplex virus (hsv) is the cause of herpes simplex encephalitis (hse), a devastating human disease which occurs in 2-4 cases per million/year. hse results either from a primary infection or virus reactivation, in accordance with the common pattern of hsv infection which is a chronic lifelong process. however its pathophysiology remains largely unknown and its poor prognosis is in contrast with the usually good tolerance of most clinical herpetic manifestations. hse is due to hsv type 1 (h ...201121488834
fishermen as a suitable population for hiv intervention trials.background. suitable populations to sustain continued evaluation of hiv and sexually transmitted infection (sti) prevention interventions are required. we sought to determine whether fishermen are a suitable population for hiv intervention trials. methods. in a cross-sectional descriptive survey, we selected 250 fishermen from proportional to size sampled boats. we collected socioeconomic and behavioral information, and specimens for hiv, herpes simplex virus (hsv-2), syphilis, gonorrhea, chlamy ...201021490906
supporting adolescent orphan girls to stay in school as hiv risk prevention: evidence from a randomized controlled trial in zimbabwe.using a randomized controlled trial in rural eastern zimbabwe, we tested whether comprehensive support to keep orphan adolescent girls in school could reduce hiv risk.201121493943
genital herpes.genital herpes is an infection with herpes simplex virus type 1 (hsv-1) or type 2 (hsv-2), and is among the most common sexually transmitted diseases. methods and outcomes: we conducted a systematic review and aimed to answer the following clinical questions: what are the effects of interventions to prevent sexual transmission of herpes simplex virus? what are the effects of interventions to prevent transmission of herpes simplex virus from mother to neonate? what are the effects of antiviral tr ...201121496359
evidence for differences in immunologic and pathogenesis properties of herpes simplex virus 2 strains from the united states and south africa.genital infection with herpes simplex virus 2 (hsv-2) is linked to an increased risk of infection with human immunodeficiency virus (hiv) in areas such as sub-saharan africa. thus, an effective genital herpes vaccine would be an important weapon in the fight against hiv/aids.201121498376
identification of herpesvirus types 1-8 in oral cavity of children/adolescents with chronic renal failure.j oral pathol med (2011) the aim of this investigation was to identify the prevalence of herpesvirus types 1-8 in the oral cavity of subjects with chronic renal failure (crf) and healthy subjects and compare the two groups, and also correlate the presence of the virus with some characteristics of crf disease (the type of treatment, drugs administered for crf and the presence of oral manifestations). the sample was made up of 60 subjects (aged 4-20) divided into the renal group (rg) and healthy g ...201121501230
phase 1 randomized trial of the vaginal safety and acceptability of spl7013 gel (vivagel) in sexually active young women (mtn-004).objectives:: the study was designed to assess the safety, adherence, acceptability, and effect on vaginal microflora of 3% spl7013 gel (vivagel), a novel dendrimer topical microbicide that inhibits hiv, herpes simplex virus-2, and human papillomavirus in vitro and in animal models. design:: phase 1, randomized, double-blind, placebo-controlled study on sexually active women. methods:: sixty-one sexually active women aged 18-24 years were recruited from three sites in the united states. participa ...201121505316
a5-positive primary sensory neurons are non-permissive for productive infection with herpes simplex virus 1 in vitro.herpes simplex viruses 1 and 2 (hsv-1, hsv-2) establish latency and express the latency-associated transcript (lat) preferentially in different murine sensory neuron populations, with most hsv-1 lat expression in a5+ neurons and hsv-2 lat in kh10+ neurons. to study mechanisms regulating establishment of hsv latency in specific subtypes of neurons, cultured dissociated adult murine trigeminal (tg) neurons were assessed for relative permissiveness for productive infection. unlike neonatal tg, the ...201121507969
comparative study of immune status to infectious agents in elderly patients with multiple myeloma, waldenstrom's macroglobulinemia, and monoclonal gammopathy of undetermined significance.whereas patients with multiple myeloma (mm) have a well-documented susceptibility to infections, this has been less studied in other b-cell disorders, such as waldenstrom's macroglobulinemia (wm) and monoclonal gammopathy of undetermined significance (mgus). we investigated the humoral immunity to 24 different pathogens in elderly patients with mm (n = 25), wm (n = 16), and mgus (n = 18) and in age-matched controls (n = 20). antibody titers against pneumococci, staphylococcal alpha-toxin, tetanu ...201121508164
the relative contribution of viral and bacterial sexually transmitted infections on hiv acquisition in southern african women in the methods for improving reproductive health in africa study.we assess the relative contribution of viral and bacterial sexually transmitted infections (stis) on hiv acquisition among southern african women in a nested case-control study within the methods for improving reproductive health in africa (mira) trial. cases were women with incident hiv infection; controls were hiv-uninfected at the time of case seroconversion selected in a 1 to 3 case to control ratio (risk-set sampling), matched on study site and time of follow-up. conditional logistic regres ...201121515755
[meta-analysis on the incidence and risk factors of herpes simplex virus type 2 infection.]objective: to determine the global incidence and risk factors of herpes simplex virus type 2 (hsv-2). methods: meta-analysis was performed to systematically and quantitatively review all the original research papers and reports that were published in 1990 - 2010 on the global incidence of hsv-2. pooled incidence, pooled hazard ratios, publication bias, heterogeneity and sensitivity analysis for those studies were calculated or conducted using stata 10.0. results: hsv-2 incidence varied considera ...201121518628
conservation of multifunctional ribosomal protein metallopanstimulin-1 (rps27) through complex evolution demonstrates its key role in growth regulation in archaea, eukaryotic cells, dna repair, translation and viral replication.when the functions of a protein serve a useful survival and unique purpose, the selective pressures of evolutionary laws of nature conserve the dna sequences encoding such proteins. in many instances, the conservation of these sequences has occurred since the inception of life on earth to the present in phylogenetically related species. the unique function(s) of metallopanstimulin (mps-1/rps27) ribosomal protein (rp) and a limited number of other rps, in growth regulation, and viral infection is ...201121518817
herpes simplex virus type 2 and cancer: a medical geography approach.herpes simplex virus type-2 (hsv-2) has been identified as a possible aetiological agent of cancer in humans, especially prostate cancer, but results remain controversial. here, we have addressed this question using a medical geography approach based on the national incidence of various cancers and seroprevalence of hsv-2 in 64 countries worldwide. we corrected reports of cancer incidence for national gross domestic product (gdp) because living in a wealthy nation likely increases the probabilit ...201121524717
genital hsv detection among hiv-1-infected pregnant women in labor.objective. to compare genital hsv shedding among hiv-positive and hiv-negative women. methods. women with and without known hiv infection who delivered at the university of washington medical center between 1989-1996 had hsv serologies done as part of clinical care. genital swabs from hsv-2-seropositive women were evaluated by real-time quantitative hsv dna pcr. results. hsv-2 seroprevalence was 71% and 30% among 75 hiv-positive and 3051 hiv-negative women, respectively, (p < .001). hsv was dete ...201121527986
refractory pemphigus vulgaris associated with herpes infection: case report and review.pemphigus vulgaris (pv) is an autoimmune disease characterized by blistering of the skin and mucosa, which develops due to the interaction between predisposing genetic and environmental factors. infections caused by members of the herpesviridae family have been suggested as a possible triggering factor for pv.201121537760
cutaneous lumbosacral herpes simplex virus among patients hospitalized for an advanced disease.cutaneous herpes simplex virus (hsv) infections are regularly observed in lumbosacral areas, and many are refractory to appropriate initial diagnosis and management.201221545541
a dual reporter cell assay for identifying serotype and drug susceptibility of herpes simplex virus.a dual reporter cell assay (drca) that allows real-time detection of herpes simplex virus (hsv) infection was developed. this was achieved by stable transfection of cells with an expression cassette that contains the dual reporter genes, secreted alkaline phosphatase (seap) and enhanced green fluorescent protein (egfp), under the control of an hsv early gene promoter. baby hamster kidney (bhk) and chinese hamster ovary (cho) cell lines were used as parental cell lines because the former is permi ...201121549682
the hsv-2 la-1 oncoprotein is a member of a novel family of serine threonine receptor kinases.the large subunit of the herpes simplex virus type 2 ribonucleotide reductase (rr) (icp10) is a chimera consisting of a serine/threonine (ser/thr) protein kinase (pk) domain preceded by a transmembrane (tm) segment at the amino terminus (la-i oncoprotein) and the rr domain at the carboxy terminus. human cells transformed by the la-i oncogene constitutively express the oncoprotein on the cell surface and internalize it by the endocytic pathway as determined by immunogold staining and electron mic ...199521552868
identification of a novel marine fish virus, singapore grouper iridovirus-encoded micrornas expressed in grouper cells by solexa sequencing.micrornas (mirnas) are ubiquitous non-coding rnas that regulate gene expression at the post-transcriptional level. an increasing number of studies has revealed that viruses can also encode mirnas, which are proposed to be involved in viral replication and persistence, cell-mediated antiviral immune response, angiogenesis, and cell cycle regulation. singapore grouper iridovirus (sgiv) is a pathogenic iridovirus that has severely affected grouper aquaculture in china and southeast asia. comprehens ...201121559453
performance of the bioplextm 2200 multiplexing immunoassay platform for the detection to herpes simplex virus type 2 specific antibodies in african settings.the bioplex™ platform was evaluated for the detection of herpes simplex virus type-2 (hsv-2) antibodies in sub-saharan africa individuals with clinico-virological standards and compared to herpeselect®. the sensitivity and specificity were respectively 88.9% and 93.5% for bioplex™ and 89.9% and 92.7% for herpeselect®. the agreement between both assays was 95.7%.201121562116
associations between herpes simplex virus type 2 and hcv with hiv among injecting drug users in new york city.objectives. we examined relationships between herpes simplex virus type 2 (hsv-2), a biomarker for sexual risk, and hcv, a biomarker for injecting risk, with hiv among injecting drug users (idus) who began injecting after large-scale expansion of syringe exchange programs in new york city. methods. we recruited 337 heroin and cocaine users who began injecting in 1995 or later from persons entering drug detoxification. we administered a structured interview covering drug use and hiv risk behavior ...201121566021
safety and efficacy of the hvtn 503/phambili study of a clade-b-based hiv-1 vaccine in south africa: a double-blind, randomised, placebo-controlled test-of-concept phase 2b study.background: the mrkad5 hiv-1 gag/pol/nef subtype b vaccine was designed to elicit t-cell-mediated immune responses capable of providing complete or partial protection from hiv-1 infection or a decrease in viral load after acquisition. we aim to assess the safety and efficacy of the vaccine in south africa, where the major circulating clade is subtype c. methods: we did a phase 2b double-blind, randomised test-of-concept study in sexually active hiv-1 seronegative participants at five sites in so ...201121570355
quantitative and qualitative correlates of cervicovaginal herpes simplex virus type 2 shedding among hiv-infected women in the women's interagency hiv study.we identified demographic, clinical and biological determinants of herpes simplex virus type 2 (hsv-2) shedding among hiv-infected participants in the women's hiv interagency study (wihs). cervicovaginal lavage (cvl) specimens from 369 hiv-infected hsv seropositive women were tested with taqman polymerase chain reaction (prc) for detection hsv-2 dna. seven percent of women tested positive for hsv-2 dna in cvl. significant correlates of the presence of hsv-2 dna in cvl were being younger, african ...201121571975
hsv neutralization by the microbicidal candidate c5a.genital herpes is a major risk factor in acquiring human immunodeficiency virus type-1 (hiv-1) infection and is caused by both herpes simplex virus type 1 (hsv-1) and hsv-2. the amphipathic peptide c5a, derived from the non-structural hepatitis c virus (hcv) protein 5a, was shown to prevent hiv-1 infection but neither influenza nor vesicular stomatitis virus infections. here we investigated the antiviral function of c5a on hsv infections. c5a efficiently inhibited both hsv-1 and hsv-2 infection ...201121573158
design and evaluation of a multi-epitope assembly peptide (meap) against herpes simplex virus type 2 infection in balb/c mice.abstract: background: human herpes simplex virus (hsv) 1 and 2 causes oral, ocular, or genital infections, which remains a significant health problem worldwide. hsv-1 and -2 infections in humans range from localized skin infections of the oral, ocular, and genital regions to severe and often disseminated infections in immunocompromised hosts. epitope based vaccination is a promising mean to achieve protective immunity and to avoid infections with human herpes simplex virus type 2 (hsv-2). method ...201121575169
inhibition of herpes simplex virus type 1 and 2 infection by peptide-derivatized dendrimers.in response to the need for new antiviral agents, dendrimer-based molecules have been recognized as having a large number of potential therapeutic applications. they include peptide derivatized-dendrimers: hyperbranched synthetic well-defined molecules which consist of a peptidyl branching core and covalently attached surface functional peptides. however, few studies have addressed their applications as direct-acting antiviral agents. here, we report on the ability of the peptide dendrimer sb105 ...201121576438
inhibition of hiv transmission in human cervicovaginal explants and humanized mice using cd4 aptamer-sirna chimeras.the continued spread of the hiv epidemic underscores the need to interrupt transmission. one attractive strategy is a topical vaginal microbicide. sexual transmission of herpes simplex virus type 2 (hsv-2) in mice can be inhibited by intravaginal sirna application. to overcome the challenges of knocking down gene expression in immune cells susceptible to hiv infection, we used chimeric rnas composed of an aptamer fused to an sirna for targeted gene knockdown in cells bearing an aptamer-binding r ...201121576818
association of low-risk human papillomavirus infection with male circumcision in young men: results from a longitudinal study conducted in orange farm (south africa).background. low-risk human papillomavirus (lr-hpv) genotypes 6 and 11 cause genital warts. this study investigated the association of lr-hpv infection with male circumcision (mc). methods. we used data from the south african mc trial conducted among young men. urethral swabs, collected among intervention (circumcised) and control (uncircumcised) groups, were analyzed using hpv linear array. adjusted lr-hpv prevalence rate ratio (appr) and poisson mean ratio (apmr) of number of lr-hpv genotypes w ...201121584275
prevalence and risk factors for herpes simplex infection among patients at high risk for hiv infection in brazil.background  herpes simplex infection is responsible for substantial morbidity in patients with hiv infection. data from less-developed countries analyzing risk factors within this population are largely unavailable. aims  investigate the incidence and seroprevalence of hsv-1 and hsv-2 infection in populations at high and low risk for hiv infection. materials and methods  a prospective cohort study was performed in a population at high risk for stds composed of 170 hiv seronegative male homosexua ...201121595666
hsv serologic testing for pregnant women: willingness to be tested and factors affecting testing.objective. this prospective study was undertaken to evaluate pregnant women's willingness to undergo hsv type-specific serologic testing and factors affecting willingness in an obstetrics/gynecology ambulatory unit. methods. at prenatal visit 1, pregnant women (n = 303) with no history of hsv-2 were tested for hsv-1/hsv-2 before and after they received counseling on genital and neonatal herpes. results. in both the unwilling subgroup and the group that changed from being willing to being unwilli ...201121603233
antiviral activity of lactobacillus brevis towards herpes simplex virus type 2: role of cell wall associated components.the aim of this research was to study the mechanisms of lactobacillus brevis antiviral activity towards hsv-2 and to identify the bacterial components responsible for the inhibiting effect. bacterial extract and cell walls were prepared by lysozyme digestion of l. brevis cells untreated or treated with licl to remove s-layer proteins. bacterial extract and cell wall fragments showed a dose dependent inhibitory effect on hsv-2 multiplication. in order to characterize the inhibitory activity of l. ...201121621625
notoginsenoside st-4 inhibits virus penetration of herpes simplex virus in vitro.further study on steam-treated notoginseng, the roots of panax notoginseng (burk.) f.h. chen (araliaceae), which is a famous traditional chinese medicine that is used both in raw and treated forms for a long time, led to the isolation of a new dammarane-type saponin, namely notoginsenoside st-4. its structure was elucidated to be 3β,12β,20(s)-tri-hydroxydammar-24-ene-3-o-β-d-xylopyranosyl-(1 → 2)-β-d-glucopyranosyl-(1 → 2)-β-d-glu-copyranoside, based on the detailed analyses of the 1d and 2d nmr ...201121623512
seroprevalence, predictors and estimated incidence of maternal and neonatal herpes simplex virus type 2 infection in semi-urban women in kilifi, kenya.abstract: background: herpes simplex virus type 2 (hsv-2) has public health importance as a leading cause of genital ulcers, a co-factor in hiv-1 acquisition and transmission and as a cause of neonatal herpes infections. little is known of its epidemiology and burden in coastal kenya. methods: we screened plasma samples for hsv-2 infection from 826 women aged 15-34 years who participated in an hiv-1 survey in kilifi in 2004. the sample comprised 563 women selected randomly from a demographic sur ...201121627803
herpes simplex virus type 2 virion host shutoff protein suppresses innate dsrna anti-viral pathways in human vaginal epithelial cells.viruses that establish persistent infections have evolved numerous strategies to evade host innate antiviral responses. we functionally assessed the role of hsv-2 virion host shutoff (vhs) protein on innate immune sensing pathways in human vaginal epithelial (vk2) cells. infection of cells with wt hsv-2 significantly decreased expression of tlr2, tlr3, rig-i and mda-5 relative to cells infected with a mutant that lacks vhs (vhsb) or mock. transfection with hsv-2 vhs similarly decreased expressio ...201121632561
the role of co-infections in hiv epidemic trajectory and positive prevention: a systematic review and meta-analysis.objectives:: recurrent or persistent co-infections may increase hiv viral load (vl) and, consequently, risk of hiv transmission, thus increasing hiv incidence. we evaluated the association between malaria, hsv-2 and tb co-infections and their treatment on hiv vl. design:: systematic review and meta-analysis of the association of malaria, hsv-2 and tuberculosis co-infections and their treatment on hiv vl. methods:: punmed and embase databases were searched to february 10 2010 for studies in adult ...201121633287
herpes simplex virus type 2, genital ulcers and hiv-1 disease progression in postpartum women.co-infection with herpes simplex virus type 2 (hsv-2) has been associated with increased hiv-1 rna levels and immune activation, two predictors of hiv-1 progression. the impact of hsv-2 on clinical outcomes among hiv-1 infected pregnant women is unclear.201121637835
herpes simplex encephalitis in patients with cancer.case reports and animal models suggest that chemotherapy, corticosteroids and radiotherapy (rt) may increase the risk of herpes simplex encephalitis (hse). we retrospectively examined cases of hse at an academic hospital devoted to cancer care. patients were identified by positive herpes simplex virus (hsv) polymerase chain reaction (pcr) in cerebrospinal fluid (csf) or by brain pathology. there were seven patients with hse over a 12 year period, four of whom had received cranial rt. during this ...201121637964
patterns of herpes simplex virus shedding over 1 month and the impact of acyclovir and hiv in hsv-2-seropositive women in tanzania.few studies have examined the frequency and duration of genital herpes simplex virus (hsv) shedding in sub-saharan africa. this study describes hsv shedding patterns among a sample of hsv-2-seropositive women enrolled in a placebo-controlled trial of hsv suppressive therapy (acyclovir 400 mg twice a day) in tanzania.201121653932
comparison of a conventional polymerase chain reaction with real-time polymerase chain reaction for the detection of neurotropic viruses in cerebrospinal fluid samples.to compare a conventional polymerase chain reaction (pcr) and real-time pcr for the detection of neurotropic dna viruses.201121654102
determinants of differential hiv incidence among women in three southern african locations.introduction:: we explored factors associated with differential hiv incidence among women participating in a hiv prevention trial in harare, durban, and johannesburg. the trial had shown no effect of the intervention (diaphragm and lubricant gel) on hiv incidence. methods:: a prospective cohort analysis was conducted of trial participants followed for 12-24 months. sociodemographic, biological, and behavioral data were collected at baseline and at quarterly visits. factors associated with hiv in ...201121654502
characterization of herpes simplex virus clinical isolate y3369 as a glycoprotein g variant and its bearing on virus typing.herpes simplex viruses exist as two major serotypes, type 1 (hsv-1) and type 2 (hsv-2). determination of type, either hsv-1 or hsv-2, is important in accurate diagnosis and clinical control of transmission. several tests are available for typing hsv, including a monoclonal antibody specific for glycoprotein g and several pcr assays.201121658271
synthesis of enantiomerically pure d- and l-bicyclo[3.1.0]hexenyl carbanucleosides and their antiviral evaluation.based upon the fact that l-nucleosides have been generally known to be less cytotoxic than d-counterparts, l-bicyclo[3.1.0]hexenyl carbanucleoside derivatives with a fixed north conformation were designed and synthesized by employing a novel synthetic strategy starting from (r)-epichlorohydrin in order to search for new anti-hiv agents with high potency and less cytotoxicity. a tandem alkylation, ╬│-lactonization, a chemoselective reduction of ester in the presence of ╬│-lactone functional group ...201121658957
herpes simplex virus type 2 infection among female sex workers in shanghai, china.a study with two cross-sectional surveys in two consecutive years was conducted in shanghai, china to examine the seroprevalence of herpes simplex virus type 2 (hsv-2), syphilis and hiv among female sex workers (fsw). a total of 793 fsw participated in the survey, 382 in 2008 only, 382 in 2009 only, and 29 in both 2008 and 2009. the majority of them were less than 30 years and two-thirds were married. all were migrants and a half was from rural areas. some of them have stayed in shanghai and eng ...201121660749
prevalence and risk factors for herpes simplex virus type 2 infections in east croatia.the aim of the study was to establish the seroprevalence of herpes simplex virus type 2 (hsv-2) among sexually active adults from east croatia and to evaluate its correlates with demographic and behavioural risk factors. this cross-sectional study was conducted from the 1st june until the 30th september 2005 at the department of transfusion medicine, osijek university hospital center. the study included 423 blood donors composed of 366 (86.5%) men and 57 (13.5%) women. demographic data and data ...201121661348
microarray profiling analysis uncovers common molecular mechanisms of rubella virus, human cytomegalovirus, and herpes simplex virus type 2 infections in ecv304 cells.to study the common molecular mechanisms of various viruses infections that might result in congential cardiovascular diseases in perinatal period, changes in mrna expression levels of ecv304 cells infected by rubella virus (rubv), human cytomegalovirus (hcmv), and herpes simplex virus type 2 (hsv-2) were analyzed using a microarray system representing 18,716 human genes. 99 genes were found to exhibit differential expression (80 up-regulated and 19 down-regulated). biological process analysis s ...201121663589
meta-analysis of randomized trials on the association of prophylactic acyclovir and hiv-1 viral load in individuals coinfected with herpes simplex virus-2.to summarize the randomized evidence regarding the association between acyclovir use and hiv-1 replication as measured by plasma hiv-1 rna viral load among individuals coinfected with herpes simplex virus (hsv)-2.201121666542
topical cream-based oxyresveratrol in the treatment of cutaneous hsv-1 infection in mice.anti-herpes simplex virus (hsv) activities of oxyresveratrol in vitro and topical administration in cutaneous hsv-1 infection in mice were examined. the inhibitory concentrations for 50% plaque formation (ic(50)) of oxyresveratrol against hsv-1 clinical isolates and hsv-2 clinical isolates were 20.9-29.5 and 22.2-27.5 ╬╝g/ml, respectively. in topical administration in cutaneous hsv-1 infection in mice, 2.5%, 5%, 10% and 20% oxyresveratrol in cream vehicle applied three times daily for 7 days aft ...201121669230
seroepidemiological survey of transmissible infectious diseases in a portuguese prison establishment.a cross-sectional study was conducted in 151 (71.6%) of 211 male inmates of a regional portuguese prison in order to establish the seroprevalence for viral hepatitis (hav, hbv, hcv), human immunodeficiency virus (hiv), syphilis and herpes simplex virus (hsv-1 and hsv-2) and to analyze some psychosocial and criminal characteristics. mean age was 34 years. anti-hav was positive in 69.5% (n = 105) and in 34.4% (n = 52) for anti-hcv. one (0.7%) person had hbsag and 29 (19.2%) had laboratory markers ...201121670930
endometrial epithelial cell responses to coinfecting viral and bacterial pathogens in the genital tract can activate the hiv-1 ltr in an nf{kappa}b-and ap-1-dependent manner.sexually transmitted infections (stis) are associated with increased human immunodeficiency virus type 1 (hiv-1) susceptibility and viral shedding in the genital tract, but the mechanisms underlying this association are poorly understood.201121673042
genital herpes in children under 11 years and investigations for sexual abuse.the implications for sexual abuse investigation of genital herpes in a child are uncertain because of a lack of good quality research evidence. the incidence, presenting features, history of exposure, indicators of child maltreatment and outcomes of child protection investigations in children with genital herpes are described.201121673184
[herpes simplex virus infections, an update for the practitioner].the herpesviruses hsv-1 and -2 classically infect the oral and genital area respectively. they descend from a common ancestor but have evolved separately since several million years, getting each adapted to these areas. thus, while both can infect either site, hsv-1 reactivates often orally, while hsv-2 does so in the genital area. the followings facts are stressed, because we think they are new, or worth attention regarding hsv epidemiology (plateauing of the hsv-2 epidemic in the us, growing s ...201121674891
male circumcision for prevention of homosexual acquisition of hiv in men.previous systematic reviews found inconsistent effects of male circumcision on hiv acquisition in men who have sex with men (msm). however, a number of new studies have become available in the three years since the last systematic review.201121678366
getting research into policy - herpes simplex virus type-2 (hsv-2) treatment and hiv infection: international guidelines formulation and the case of ghana.observational epidemiological and biological data indicate clear synergies between herpes simplex virus type 2 (hsv-2) and hiv, whereby hsv-2 enhances the potential for hiv acquisition or transmission. in 2001, the world health organization (who) launched a call for research into the possibilities of disrupting this cofactor effect through the use of antiherpetic therapy. a who expert meeting was convened in 2008 to review the research results. the results of the trials were mostly inconclusive ...201121679386
investing in the future: lessons learnt from communicating the results of hsv/ hiv intervention trials in south africa.communicating the results of randomised controlled trials may present challenges for researchers who have to work with communities and policy-makers to anticipate positive outcomes, while being aware that results may show no effect or harm.201121679389
mollaret's meningitis and herpes simplex virus type 2 infections.benign recurrent aseptic meningitis is a rare disorder described by mollaret in 1944. when initially described, this form of aseptic meningitis had no identifiable infecting agent. new sophisticated diagnostic tools have now identified herpes simplex type 2 virus as the most commonly isolated agent. antiviral treatment has been used successfully for prophylaxis and treatment.201121680663
low acceptance of hsv-2 testing among high-risk women.we evaluated the acceptability of a community-based herpes simplex virus type 2 (hsv-2) screening programme for at-risk women and assessed factors related to uptake of point of care hsv-2 testing. one hundred recently arrested women (median age 34 years) were recruited from a community court handling lower-level misdemeanour cases in indianapolis, indiana. individuals completed a survey assessing factors related to hsv-2 screening intentions and were offered point of care hsv-2 testing. rates of ...201121680668
performance of the euroline western blot assay in the detection of herpes simplex virus type 2 antibody in uganda, china and the usa.herpes simplex virus type 2 (hsv-2) infection is one of the most common sexually transmitted infections (stis) worldwide. while glycoprotein g-2 enzyme-linked immunosorbent assays are commonly used for the serological detection of hsv-2 antibodies, they have low specificity in developing countries. the euroline western blot (wb) is a commercially available assay that is easy to perform; however, little is known about its performance characteristics. this study evaluated euroline wb for the detec ...201121680672
hiv-related risk behaviors among a sample of men who have sex with men in puerto rico: an overview of substance use and sexual practices.despite the growing impact of the human immunodeficiency virus (hiv) epidemic in puerto rico (pr), limited epidemiological research on men who have sex with men (msm) has been conducted. the aim of this study was to describe hiv-related risk behaviors in a sample of msm in pr.201121682148
the effects of daily distress and personality on genital hsv shedding and lesions in a randomized, double-blind, placebo-controlled, crossover trial of acyclovir in hsv-2 seropositive women.herpes simplex virus (hsv) infections are ubiquitous in humans, but the determinants of clinical and virologic severity are not completely understood. prior research has suggested that psychological distress can be a co-factor in reactivation of latent hsv infection. personality traits such as extraversion and neuroticism influence stress attributions and may inform the relationship between psychological distress and health outcomes. earlier studies in this area have primarily focused on subject ...201121693182
herpes simplex virus infection in the croatian population.abstract background: herpes simplex virus (hsv) infections are caused by 2 types of virus, hsv-1 and hsv-2. both viruses are endemic worldwide. there are marked variations in the seroprevalences of hsv-1 and hsv-2 in europe. the aim of this study was to determine the seroprevalence of hsv infections in croatia. methods: during a 3-y period (2008-2010), a total of 1672 patients were tested for the presence of hsv-1 and hsv-2 antibodies using an enzyme-linked immunosorbent assay. results: the over ...201121696254
the ribonucleotide reductase r1 subunits of herpes simplex virus 1 and 2 protect cells against poly(i {middle dot} c)-induced apoptosis.we recently provided evidence that the ribonucleotide reductase r1 subunits of herpes simplex virus types 1 and 2 (hsv-1 and -2) protect cells against tumor necrosis factor alpha- and fas ligand-induced apoptosis by interacting with caspase 8. double-stranded rna (dsrna) is a viral intermediate known to initiate innate antiviral responses. poly(i -à c), a synthetic analogue of viral dsrna, rapidly triggers caspase 8 activation and apoptosis in hela cells. here, we report that hela cells after hs ...201121697465
the risk factor profile of women with secondary infertility: an unmatched case-control study in kigali, rwanda.secondary infertility is a common, preventable but neglected reproductive health problem in resource-poor countries. this study examines the association of past sexually transmitted infections (stis) including hiv, bacterial vaginosis (bv) and factors in the obstetric history with secondary infertility and their relative contributions to secondary infertility.201121702916
identity of zinc finger nucleases with specificity to herpes simplex virus type ii genomic dna: novel hsv-2 vaccine/therapy precursors.herpes simplex type ii (hsv-2) is a member of the family herpesviridae. human infection with this double stranded linear dna virus causes genital ulcerative disease and existing treatment options only serve to resolve the symptomatology (ulcers) associated with active hsv-2 infection but do not eliminate latent virus. as a result, infection with hsv-2 follows a life-long relapsing (active versus latent) course. on the basis of a primitive bacterium anti-phage dna defense, the restriction modific ...201121702927
human herpesvirus 8 seropositivity among sexually active adults in uganda.sexual transmission of human herpesvirus 8 (hhv8) has been implicated among homosexual men, but the evidence for sexual transmission among heterosexual individuals is controversial. we investigated the role of sexual transmission of hhv8 in a nationally representative sample in uganda, where hhv8 infection is endemic and transmitted mostly during childhood.201121712983
using centralized laboratory data to monitor trends in herpes simplex virus type 1 and 2 infection in british columbia and the changing etiology of genital herpes.understanding the regional epidemiology of genital herpes simplex virus (hsv) infections is important for clinical and public health practice, due to the increasing availability of type-specific serologic testing in canada and the contribution of genital hsv-2 infection to ongoing hiv transmission. we used centralized laboratory data to describe trends in viral identifications of genital hsv in bc and assess the utility of these data for ongoing population surveillance.201121714324
pattern of sexually transmitted infections and performance of syndromic management against etiological diagnosis in patients attending the sexually transmitted infection clinic of a tertiary care hospital.the availability of baseline information on the epidemiology of sexually transmitted infections (stis) and other associated risk behaviors is essential for designing, implementing, and monitoring successful targeted interventions. also, continuous analysis of risk assessment and prevalence-based screening studies are necessary to evaluate and monitor the performance of syndromic management. the aim of the present study was to document the pattern of common stis and to evaluate the performance of ...201021716796
of mice and not humans: how reliable are animal models for evaluation of herpes cd8(+)-t cell-epitopes-based immunotherapeutic vaccine candidates?herpes simplex virus type 1 and type 2 (hsv-1 and hsv-2)-specific cd8(+) t cells that reside in sensory ganglia, appear to control recurrent herpetic disease by aborting or reducing spontaneous and sporadic reactivations of latent virus. a reliable animal model is the ultimate key factor to test the efficacy of therapeutic vaccines that boost the level and the quality of sensory ganglia-resident cd8(+) t cells against spontaneous herpes reactivation from sensory neurons, yet its relevance has be ...201121718746
seroprevalence of herpes simplex virus 2 among hispanics in the usa: national health and nutrition examination survey, 2007-2008.to examine the seroprevalence of herpes simplex virus type 2 (hsv-2) among hispanics in the usa, we used the cross-sectional, nationally representative national health and nutrition examination survey to compare the seroprevalence of hsv-2 between hispanic persons of mexican heritage and non-mexican heritage aged 14-44 years, from survey years 2007-2008. the overall hsv-2 seroprevalence among hispanics aged 14-44 years was 17.5% (95% confidence interval [ci], 15.2, 20.1) in the usa. hsv-2 seropr ...201121729957
psychosocial impact of a positive hsv-2 diagnosis on adults with unrecognized hsv-2 infection.to evaluate the current research on the psychosocial impact of a positive herpes simplex virus type 2 (hsv-2) diagnosis on asymptomatic adults.201121736611
hsv-2 infection of dendritic cells amplifies a highly susceptible hiv-1 cell target.herpes simplex virus type 2 (hsv-2) increases the risk of hiv-1 infection and, although several reports describe the interaction between these two viruses, the exact mechanism for this increased susceptibility remains unclear. dendritic cells (dcs) at the site of entry of hsv-2 and hiv-1 contribute to viral spread in the mucosa. specialized dcs present in the gut-associated lymphoid tissues produce retinoic acid (ra), an important immunomodulator, able to influence hiv-1 replication and a key me ...201121738472
nucleocytoplasmic shuttling of the hsv-2 serine/threonine kinase us3.the alphaherpesvirus serine/threonine kinase us3 plays diverse roles in virus multiplication and modifies both nuclear and cytoplasmic substrates. we recently reported that treatment of hsv-2 us3-transfected and hsv-2-infected cells with leptomycin b, an inhibitor of nuclear export mediated by interaction of chromosomal regional maintenance protein (crm1) with leucine rich nuclear export signals (ness), resulted in nuclear trapping of us3. here, we utilized fluorescence loss in photobleaching to ...201121741667
herpes simplex virus type 2 seroprevalence and incidence in acute and chronic hiv-1 infection.herpes simplex virus type 2 (hsv-2) hiv co-infection is common and associated with increased risk of hiv transmission. hsv-2 seroprevalence was assessed on stored samples from baseline and one year follow-up from 81 patients identified with acute hiv infection and 81 age-matched chronically infected men. hsv-2 seroprevalence at baseline was lower for those with acute rather than chronic hiv-infection, 51.9 versus 71.6% (p = 0.01); relative risk 0.72 (95% confidence interval [ci] 0.57-0.92). sinc ...201121742810
acyclic nucleoside phosphonates with a branched 2-(2-phosphonoethoxy)ethyl chain: efficient synthesis and antiviral activity.series of novel acyclic nucleoside phosphonates (anps) with various nucleobases and 2-(2-phosphonoethoxy)ethyl (pee) chain bearing various substituents in ß-position to the phosphonate moiety were prepared. the influence of structural alternations on antiviral activity was studied. several derivatives exhibit antiviral activity against hiv and vaccinia virus (middle micromolar range), hsv-1 and hsv-2 (lower micromolar range) and vzv and cmv (nanomolar range), although the parent unbranched pee-a ...201121745746
cmv and hsv-2 myeloradiculitis in an hiv infected patient.while cmv myeloradiculitis is a known complication in aids patients with severe immunosuppression, hsv-2 necrotizing myeloradiculitis is rare and often associated with disabling a fatal outcome. we hereby describe a 46 year-old hiv infected patient with profound and sustained immunosuppression who presented with an acute ascending paraparesis and urinary retention. lumbar spine mri showed contrast enhancement at the conus medullaris and cauda equine, and both cmv and hsv-2 csf pcr were positive. ...201121755241
pathologic and virologic characterization of neuroinvasion by hsv-2 in a mouse encephalitis model.herpes simplex virus type 2 (hsv-2), a ubiquitous human pathogenassociated with genital infections, is neurotropic. it establishes latent infections in local dorsal root ganglia from which it reactivates causing recurrent lesions and frequent episodes of viral shedding. herpes simplex virus type 2 can also be transmitted from mother to child during birth, causing major neonatal complications including encephalitis. animal models of hsv-2 genital infection are well described and used for testing ...201121760533
antiherpes activity of glucoevatromonoside, a cardenolide isolated from a brazilian cultivar of digitalis lanata.cardiac glycosides, known ligands of the sodium pump, are widely used in the treatment of heart failure, such as digoxin and digitoxin. besides this important activity, other biological activities, such as the antiviral activity, have been described for this group. hsv are responsible for many infections of oral, ocular and genital regions. treatment with nucleoside analogs such as acyclovir is effective in most cases; however drug-resistance may arise due to prolonged treatment mainly in immuno ...201121763352
[antiviral activity of 3-hydroxyphthalic anhydride-modified ovalbumin against herpes simplex virus 2 in vitro].to investigate the antiviral activity of 3-hydroxyphthalic anhydride-modified ovalbumin (hp-ova) against herpes simplex virus 2 (hsv-2) in vitro.201121764688
a heat shock protein based polyvalent vaccine targeting hsv-2: cd4(+) and cd8(+) cellular immunity and protective efficacy.efforts to develop a subunit vaccine against genital herpes have been hampered by lack of knowledge of the protective antigens of hsv-2, the causative agent of the disease. vaccines based either on selected antigens or attenuated live virus approaches have not demonstrated meaningful clinical activity. we present here results of a therapeutic vaccine candidate, herpv (formerly called ag-707), consisting of 32 hsv-2 peptides derived from 22 hsv-2 proteins, complexed non-covalently to the hsp70 ch ...201121767588
benzylidene-bis-(4-hydroxycoumarin) and benzopyrano-coumarin derivatives: synthesis, 1h/13c-nmr conformational and x-ray crystal structure studies and in vitro antiviral activity evaluations.we report on the synthesis of 4-hydroxycoumarin dimers 1-15 bearing an aryl substituent on the central linker and fused benzopyranocoumarin derivatives 16-20 and on their in vitro broad anti-dna and rna virus activity evaluations. the chemical identities and structure of compounds 1-20 were deduced from their homo- and heteronuclear nmr measurements whereas the conformational properties of 5, 14 and 20 were assessed by the use of 1d difference noe enhancements. unequivocal proof of the stereostr ...201121772234
the association between infection burden in iranian patients with acute myocardial infarction and unstable angina.aim: to evaluate the association of ischemic heart disease (ihd) with the number of pathogens (infection burden) among individuals with infection. methods: a total of 120 patients with ihd as the acute myocardial infarction (ami; n=60) or unstable angina (ua; n=60) group and 60 healthy subjects with sex- and age-matched as control group were enrolled in this study. serum samples of all participants were tested for the presence of antibodies to helicobacter pylori (h. pylori), cytomegalovirus (cm ...201121785173
antiherpetic activity of a sulfated polysaccharide from agaricus brasiliensis mycelia.sulfated polysaccharides are good candidates for drug discovery in the treatment of herpetic infections. agaricus brasiliensis (syn a. subrufescens, a. blazei) is a basidiomycete fungus native to the atlantic forest region of southeastern brazil. herein we report the chemical modification of a polysaccharide extracted from a. brasiliensis mycelia to obtain its sulfated derivative (mi-s), which presented a promising inhibitory activity against hsv-1 [kos and 29r (acyclovir-resistant) strains] and ...201121787804
herpes simplex virus type 1 ul14 tegument protein regulates intracellular compartmentalization of major tegument protein vp16.abstract: background: herpes simplex virus type 1 (hsv-1) has a complicated life-cycle, and its genome encodes many components that can modify the cellular environment to facilitate efficient viral replication. the protein ul14 is likely involved in viral maturation and egress (cunningham c. et al), and it facilitates the nuclear translocation of viral capsids and the tegument protein vp16 during the immediate-early phase of infection (yamauchi y. et al, 2008). ul14 of herpes simplex virus type ...201121791071
the kinetics of mucosal herpes simplex virus-2 infection in humans: evidence for rapid viral-host interactions.(see the editorial commentary by quinn, on pages 495-8.) background. herpes simplex virus type 2 (hsv-2) reactivations in the genital tract are responsible for mucocutaneous lesions and transmission and manifest as discrete shedding episodes. methods. we analyzed duration, peak copy number, and expansion and decay rates of 1020 shedding episodes in 531 immunocompetent hsv-2-seropositive persons from whom daily swabs of genital secretions were collected. results. viral quantity varied by as much ...201121791657
hvem and nectin-1 mediate hsv-1 infection of the murine cornea.herpes simplex virus type 1 (hsv-1) is a ubiquitous human pathogen that enters cells by receptor mediated fusion of the viral envelope with a host cell membrane. the envelope glycoprotein gd of hsv must bind to one of its receptors for entry to take place. recent studies using knock-out mice demonstrated that the gd receptors, herpes virus entry mediator (hvem) and nectin-1, are the primary entry receptors for hsv-2 in the mouse vagina and brain. nectin-1 was most crucial for neuronal spread of ...201121795335
expression of hsv-1 encoded mirnas in human trigeminal ganglia and their relation to local t-cell infiltrates.herpes simplex type-1 (hsv-1) is a neurotropic virus which establishes lifelong latency in human trigeminal ganglia (tg). currently, two non-exclusive control mechanisms of hsv-1 latency are discussed: anti-viral cd8(+) t cells and viral micro rnas (mirna) encoded by the latency associated transcript (lat). here we investigate to what extent these mechanisms may contribute to the maintenance of hsv-1 latency. in the current study we show, that only a small proportion of lat(+) neurons is surroun ...201121795359
synthesis, antiviral and cytotoxic investigation of 2-phenyl-3-substituted quinazolin-4(3h)-ones.a series of 3(benzylideneamino)-2-phenyl quinazoline-4(3h)-ones was synthesized by reaction of 3-amino-2-phenyl-3h-quinazoline-4-one with various carbonyl compounds.201121796872
evaluation of a new multiplex polymerase chain reaction assay stdfinder for the simultaneous detection of 7 sexually transmitted disease pathogens.we evaluated a new multiplex polymerase chain reaction (mpcr), "stdfinder assay", a novel multiplex ligation-dependent probe amplification (mlpa) assay for the simultaneous detection of 7 clinically relevant pathogens of stds, i.e., neisseria gonorrhoeae, chlamydia trachomatis, trichomonas vaginalis, mycoplasma genitalium, treponema pallidum, and herpes simplex virus type 1 and 2 (hsv-1 and hsv-2). an internal amplification control was included in the mpcr reaction. the limits of detection for t ...201121798683
synthesis and antiviral activity of novel 1,3,4-thiadiazine derivatives.a series of novel 1,3,4-thiadiazine derivatives were synthesized via chemical optimization on phthiobuzone. their anti-herpes simplex virus (hsv) activities in vitro were also tested. several compounds exhibited more highly potent anti-hsv activity and much higher selectivity index (si) values than those of phthiobuzone. the most potent anti-hsv compound was 4f, which showed marked inhibition against hsv-1 (ic(50)=77.04 µg/ml) and hsv-2 (ic(50)=30.00 µg/ml). meanwhile it had low cytotoxicity (cc ...201121804247
herpes simplex virus type 2: seroprevalence in antenatal women.to determine the seroprevalence of herpes simplex type 2 (hsv-2) infection in pregnant females, assess the frequency of unrecognized infection and identify the demographic profile and risk factors associated with the seroprevalence.201021808430
hsv-2 glycoprotein c subunit immunization combined with glycoprotein d improves the protection of dorsal root ganglia in mice and reduces the frequency of recurrent vaginal shedding of hsv-2 dna in guinea pigs compared with glycoprotein d alone.attempts to develop a vaccine to prevent genital hsv-2 disease have been only marginally successful, suggesting that novel strategies are needed. immunization with hsv-2 glycoproteins c (gc-2) and d (gd-2) was evaluated in mice and guinea pigs to determine whether adding gc-2 to a gd-2 subunit vaccine improves protection by producing antibodies that block gc-2 immune evasion from complement. antibodies produced by gc-2 immunization blocked the interaction between gc-2 and complement c3b, and pas ...201121813597
herpes simplex virus-induced epithelial damage and susceptibility to human immunodeficiency virus type 1 infection in human cervical organ culture.normal human premenopausal cervical tissue has been used to derive primary cell populations and to establish ex vivo organ culture systems to study infections with herpes simplex virus (hsv-1 or hsv-2) and human immunodeficiency virus type 1 (hiv-1). infection with either hsv-1 or hsv-2 rapidly induced multinuclear giant cell formation and widespread damage in mucosal epithelial cells. subsequent exposure of the damaged mucosal surfaces to hiv-1 revealed frequent co-localization of hsv and hiv-1 ...201121818356
are hiv epidemics among men who have sex with men emerging in the middle east and north africa?: a systematic review and data synthesis.men who have sex with men (msm) bear a disproportionately higher burden of hiv infection than the general population. msm in the middle east and north africa (mena) are a largely hidden population because of a prevailing stigma towards this type of sexual behavior, thereby limiting the ability to assess infection transmission patterns among them. it is widely perceived that data are virtually nonexistent on msm and hiv in this region. the objective of this review was to delineate, for the first ...201121829329
effect of variable transmission rate on the dynamics of hiv in sub-saharan africa.abstract: background: the cause of the high hiv prevalence in sub-saharan africa is incompletely understood, with heterosexual penile-vaginal transmission proposed as the main mechanism. heterosexual hiv transmission has been estimated to have a very low probability; but effects of cofactors that vary in space and time may substantially alter this pattern. methods: to test the effect of individual variation in the hiv infectiousness generated by co-infection, we developed and analyzed a mathemat ...201121834977
multipurpose prevention technologies: biomedical tools to prevent hiv-1, hsv-2, and unintended pregnancies.statistics clearly show an unmet need for highly effective contraception, especially in less developed countries. many of these countries are at the core of the hiv/aids epidemic and show very high prevalence rates for other sexually transmitted infections (stis) such as that caused by hsv-2. a woman at risk of unintended pregnancy due to unprotected intercourse is also at risk for hiv/sti. owing to their causative interrelationship, combining protection against these conditions will result in e ...201121836811
prevalence of human papillomavirus genotypes and associated cervical squamous intraepithelial lesions in hiv-infected women in botswana.human papillomaviruses (hpv) constitute one of the most prevalent sexually transmitted infections and are the etiological agents for invasive cervical cancer, the predominant cancer among women in botswana. however, the prevalence of hpv genotypes in botswana has yet to be reported. one hundred thirty-nine endocervical swabs were taken at baseline from hiv-1 infected, hsv-2 seropositive women enrolled in a longitudinal cohort study designed to assess the influence of herpes simplex virus-2 (hsv- ...201121837784
population-based surveillance for neonatal herpes in new york city, april 2006-september 2010.: population-based data for neonatal herpes simplex virus (hsv) infection are needed to describe disease burden and to develop and evaluate prevention strategies.201121844721
human immunodeficiency virus, sexually transmitted infections, and risk behaviors among clients of sex workers in guatemala: are they a bridge in human immunodeficiency virus transmission?objectives:: clients of female sex workers (fsws) are an important target group for human immunodeficiency virus/sexually transmitted infection (hiv/sti) prevention. this study aimed to estimate their hiv and other sti prevalence, examine their risk behaviors, and evaluate their role as a bridge population in the spread of hiv/stis. methods:: a cross-sectional study was performed among 553 clients recruited in commercial sex sites in the province of escuintla, guatemala. they were interviewed an ...201121844725
clinician and patient recognition of anogenital herpes disease in hiv positive men who have sex with men.anogenital ulcers caused by herpes simplex virus type 2 (hsv-2) are associated with an increased risk of human immunodeficiency virus (hiv) transmission. when compared with clinician examination, hiv/hsv-2 coinfected men who have sex with men are frequently unaware of anogenital ulcers. these data highlight the importance of condom use and the need for new hsv-2 prevention strategies.201121844739
factors associated with herpes simplex virus type 2 incidence in a cohort of human immunodeficiency virus type 1-seronegative kenyan men and women reporting high-risk sexual behavior.: herpes simplex virus type 2 (hsv-2) is an important cause of genital ulcers and can increase the risk for human immunodeficiency virus type 1 (hiv-1) transmission. our objective was to determine the incidence and correlates of hsv-2 infection in hiv-1-seronegative kenyan men reporting high-risk sexual behavior, compared with high-risk hiv-1-seronegative women in the same community.201121844740
health care seeking among men with genital ulcer disease in south africa: correlates and relationship to human immunodeficiency virus-1 and herpes simplex virus type 2 detection and shedding.episodic acyclovir therapy has been added to genital ulcer disease (gud) syndromic management guidelines in several sub-saharan african countries with human immunodeficiency virus (hiv) epidemics. we examined the correlates of health care seeking in men with gud and its relationship to hiv-1 and herpes simplex virus type 2 outcomes.201121844743
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