Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: EC:2.7.10.2 (focal adhesion kinase)
 44,029 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Viral entry may preferentially occur at the apical or the basolateral surfaces of polarized cells, and differences may impact pathogenesis, preventative strategies, and successful implementation of viral vectors for gene therapy. The objective of these studies was to examine the polarity of herpes simplex virus (HSV) entry using several different human epithelial cell lines. Human uterine (ECC-1), colonic (CaCo-2), and retinal pigment (ARPE-19) epithelial cells were grown on collagen-coated inserts, and the polarity was monitored by measuring the transepithelial cell resistance. Controls were CaSki cells, a human cervical cell line that does not polarize in vitro. The polarized cells, but not CaSki cells, were 16- to 50-fold more susceptible to HSV infection at the apical surface than at the basolateral surface. Disruption of the tight junctions by treatment with EGTA overcame the restriction on basolateral infection but had no impact on apical infection. No differences in binding at the two surfaces were observed. Confocal microscopy demonstrated that nectin-1, the major coreceptor for HSV entry, sorted preferentially to the apical surface, overlapping with adherens and tight junction proteins. Transfection with small interfering RNA specific for nectin-1 resulted in a significant reduction in susceptibility to HSV at the apical surface but had little impact on basolateral infection. Infection from the apical but not the basolateral surface triggered focal adhesion kinase phosphorylation and led to nuclear transport of viral capsids and viral gene expression. These studies indicate that access to nectin-1 contributes to preferential apical infection of these human epithelial cells by HSV.
 ...
PMID:Access to nectin favors herpes simplex virus infection at the apical surface of polarized human epithelial cells. 1700 57

We studied the association between herpes simplex virus type-2 (HSV-2) and HIV-1 viralload in plasma, semen, cervico-vaginal secretions and genital ulcers. Forty-seven (68%) men and 57 (80%) women were HSV-2 antibody positive, of whom 12 (26%, 95% confidence interval [CI] 20, 32) and five (8%, 95% CI 4, 12), respectively, had HSV-2 genital shedding detected by polymerase chain reaction. The mean HIV-1 seminal and cervico-vaginal viral loads did not differ significantly according to the presence of HSV-2 shedding. Eleven men and 15 women presented with genital ulcers; all ulcers were due to HSV-2. Ten men and nine women were followed up over six days: the mean (95% CI) HIV-1 log viral load copies/mL in the genital ulcers at baseline and final visits were 2.5 (2.3, 2.7) and 3.1 (2.0, 4.2) for men and 3.0 (2.6, 3.4) and 2.7 (2.3, 3.1) for women. These findings do not support the hypothesis that HSV-2 increases the HIV-1 viral load in genital secretions.
Int J STD AIDS 2006 Oct
PMID:Association between HSV-2 and HIV-1 viral load in semen, cervico-vaginal secretions and genital ulcers of Thai men and women. 1705 38

Little information is available on the prevalence of herpes simplex type-2 (HSV-2) antibodies among groups at potential high risk of HIV in Asia. This study was carried out to determine the prevalence of HSV-2 antibodies and correlates of HSV-2 infection in female sex workers (FSWs) in border provinces of Vietnam. Nine hundred and four FSWs in five border provinces of Vietnam were interviewed about selected sociodemographic and behavioural characteristics, and information about partners by a standard interview schedule. Serological samples were collected for HSV-2 antibodies, syphilis and HIV. The overall prevalence of HSV-2 antibodies was 27.7% (95% confidence interval [CI]: 24.8-30.7%). The prevalence of HSV-2 in southern provinces (Dong Thap 32.3%, An Giang 33.3% and Kien Giang 29.9%) was higher than that in the central (Quang Tri 20.8%) and northern border areas (Lai Chau 5.0%). In multivariate analysis, Kinh ethnicity (odds ratio [OR] = 2.59, P = 0.02), direct sex work (OR = 1.61, P = 0.01), >/=9 clients/week (OR = 2.11, P = <0.001), ever worked outside Vietnam (OR = 2.12, P = 0.05), >1 pregnancy termination (OR = 1.58, P = 0.05), syphilis (OR = 5.19, P = <0.001) and HIV (OR = 2.68,P = 0.01) were associated with HSV-2. Age </=20 (OR = 0.65, P = 0.05) and current oral contraceptive use (OR = 0.55, P = 0.01) were protective for HSV-2 antibodies. A significant proportion of FSWs in border provinces have HSV-2 antibodies, more so in the southern region. FSWs should be educated about recognition of signs and symptoms of genital herpes and the role this infection has in facilitating HIV transmission.
Int J STD AIDS 2006 Nov
PMID:HSV-2 antibodies in female sex workers in Vietnam. 1706 80

We assessed the efficacy of dish detergent in removing Neisseria gonorrhoeae, HIV-1, herpes simplex virus type 2 and Chlamydia trachomatis organisms from the surface of inoculated female condoms. The reductions achieved in organism counts with dish detergent were compared with those for household bleach and water. New (out-of-package) and pre-washed/re-lubricated female condoms were used. Dish detergent was as efficacious as bleach in reducing organism counts from the surface of inoculated female condoms. Both bleach and dish detergent performed better than water, although >3 log(10) reductions were achieved with water alone. There was little difference in organism reduction between new and pre-washed condoms. Furthermore, 30 seconds of mechanical agitation (washing) had minimal added impact on organism removal. Reduction in organism counts with water alone suggests that dilution effect may have been as important in organism removal as the microbicidal properties of the detergent.
Int J STD AIDS 2007 Mar
PMID:Efficacy of a dish detergent in reducing populations of STI organisms in inoculated female condoms. 1736 55

This is the case of a black African woman who presented with three distinct episodes of herpes simplex virus (HSV) infection unresponsive to first-line therapy. Clinical and virological resistance to aciclovir therapy was demonstrated, and although the first two episodes manifested as the deep ulceration often associated with HIV/HSV coinfection, the third was an atypical hypertrophic lesion. This is despite her CD4 count being persistently above 300 and there being no previous diagnosis of AIDS.
Int J STD AIDS 2007 Mar
PMID:An unusual vulval lesion in an HIV-infected woman. 1736 60

We report on a patient who presented with an unusual manifestation of primary herpes simplex virus (HSV) infection. Furthermore, this case again shows that even the correct use of a condom has limited protecting value. We emphasize the usefulness of informing patients carefully about transmission risks of HSV.
Int J STD AIDS 2007 Apr
PMID:Condoms do not cover everything: an unusual presentation of herpes simplex virus-2 infection. 1750 82

Type I interferons (IFN-alpha/beta and related molecules) are essential for protective immunity to experimental infection by numerous viruses in the mouse model. In recent years, human primary immunodeficiencies affecting either the production of (UNC-93B deficiency) or the response to (STAT1 and TYK2 deficiencies) these IFNs have been reported. Affected patients are highly susceptible to certain viruses. Patients with STAT1 or TYK2 deficiency are susceptible to multiple viruses, including herpes simplex virus-1 (HSV-1), whereas UNC-93B-deficient patients present isolated HSV-1 encephalitis. However, these immunological defects are not limited to type I IFN-mediated immunity. Impaired type II IFN (IFN-gamma)-mediated immunity plays no more than a minor role in the pathogenesis of viral diseases in these patients, but the contribution of impaired type III IFN (IFN-lambda)-mediated immunity remains to be determined. These novel inherited disorders strongly suggest that type I IFN-mediated immunity is essential for protection against natural infections caused by several viruses in humans.
 ...
PMID:Human primary immunodeficiencies of type I interferons. 1756 26

The present study was conducted on 250 serum samples of STD clinic patients and 50 serum samples of asymptomatic women to determine seroprevalence of herpes simplex-1 and 2 (HSV-1 and 2) IgM antibodies and HIV-1 and 2 antibodies. The samples were also screened for syphilis by VDRL test and confirmed by TPHA test. Seropositivity of HSV in STD clinic patients was 44/250 (17.6%) and 12/50 (24%) in asymptomatic women. In 11/44 (25%) seropositive persons for HSV, HIV 1 and 2 antibodies were present. In 10/44 (22.7%) HSV seropositive persons, coinfection with syphilis was also present, whereas in 7/44 (15.9%) HSV seropositive persons, both HIV and syphilis were present. In the control group, coinfection with other sexually transmitted infections (STIs) was not observed.
 ...
PMID:Seroprevalence of herpes simplex virus-1 and 2 antibodies in STD clinic patients. 1764 47

A survey of the accuracy of applying the KC60 diagnostic code for genital herpes: first attack (C10A) was undertaken by non-consultant career-grade doctors working in genitourinary (GU) medicine in England, Wales and Northern Ireland. In total, 148 forms were returned (58% response). Overall, 88/148, 59.5% (95% confidence interval 51.5-67.4%) applied the correct codes for all the clinical scenarios presented. Of doctors who personally assigned codes to clinical episodes, 57/104 (54.8%), were correct compared with 31/44 (70.5%) who did not personally apply codes. There was no difference between these two groups (P=0.08). The main error was assigning code C10A on clinical grounds only when there was no laboratory confirmation of herpes simplex virus. The authors suggest that the KC60 C10A code for first attack genital herpes should be simplified to accept a clinical diagnosis rather than insisting on viral confirmation. Alternatively, consideration could also be given to adopting a more comprehensive system (such as the Scottish example) for first attack genital herpes. We believe that either option would help improve the accuracy of GU clinic data relating to genital herpes.
Int J STD AIDS 2007 Aug
PMID:Genitourinary medicine clinic KC60 coding for first episode genital herpes: a lesson from north of the border? 1768 23

Both herpes simplex virus type 2 (HSV-2) seroprevalence and the proportion of HSV-1 genital ulcers are increasing in industrialized countries. The consequences of these epidemiological changes, in pregnant women in France, for both the genital shedding of HSV and vertical transmission, have been poorly evaluated. The HSV-1 and HSV-2 seroprevalence and the rate of subclinical genital shedding of herpes close to delivery were evaluated in pregnant women, with no history of genital herpes, living in the East Paris suburban area. HSV-2 antibody prevalence of 26% was significantly associated with country of origin and was higher than that reported in 2002 in French women from the general population (18%). HSV-2 and HSV-1 genital reactivations were observed in 10% of HSV-2 seropositive and in 4% of HSV-1 seropositive and HSV-2 seronegative women, respectively. The high rates of HSV-2 seropositivity and subclinical herpes genital shedding observed in this study should be considered to promote a national survey in pregnant women to propose strategies to prevent the spread of HSV within the population and to the neonate.
Int J STD AIDS 2007 Sep
PMID:Unexpected high prevalence of herpes simplex virus (HSV) type 2 seropositivity and HSV genital shedding in pregnant women living in an East Paris suburban area. 1778


<< Previous 1 2 3 4 5 6 7 8 9 10 Next >>