نتایج جستجو برای: nonoxynol
تعداد نتایج: 154 فیلتر نتایج به سال:
Sexually transmitted infections (STIs) and human immunodeficiency virus (HIV), the causative agents of acquired immunodeficiency syndrome (AIDS), are two great concerns in the reproductive health of women. Thus, the challenge is to find products with a double activity, on the one hand having antimicrobial/antiviral properties with a role in the reduction of STI, and on the other hand having spe...
New technology was used to identify traces of a commercial barrier/spermicide in evidence from a case of a man accused of rape of a minor. Examination of vaginal swabs performed by another laboratory had been negative for seminal fluid or other sources of DNA from the suspect and we were asked to examine the remaining swabs for any traces that might have originated from the commercial product. ...
The development of topical microbicides for HIV prevention originated in response to the unabated spread of HIV despite the availability of an effective HIV prevention tool (condoms), as well as the lack of an effective HIV vaccine. Initially, hopes were pinned on existing over-the-counter spermicides containing nonoxynol-9. Concern about the toxicity of nonoxynol-9 with frequent use, and its s...
The probiotic relevant characteristics of 45 strains of vaginal Lactobacillus isolated from healthy women were analyzed. Of these, 21 strains were classified as L. crispatus, 17 as L. jensenii, six as L. gasseri, and one as L. plantarum. The rate of acidification varied significantly between the strains as did their ability to form biofilms. None used glycogen as a fermentable carbohydrate. H2O...
Background Nonoxynol-9 a nonionic surfactant is widely used for its spermicidal effects. Finding new sperm immobilizing agents is necessary because Nonoxynol-9 damages the tissues of female reproductive system. Objective The aim of this study was to evaluate the effects of Thymoquinone (TQ) as a potential spermostatic compound on the motility and viability of human spermatozoa. Materials an...
background: the most frequently used spermicide nonoxynol-9 (n-9) in the clinic alters the vaginal flora, which will result in an increased risk of opportunistic infection. so development of a novel spermicidal and microbicidal drug appears to be inevitable. vaginal local immune is an important part of vaginal flora. secretory leukocyte protease inhibitor (slpi), surfactant proteins d (sp-d), a...
The first product to be clinically evaluated as a microbicide contained the nonionic surfactant nonoxynol-9 (nonylphenoxypolyethoxyethanol; N-9). Many laboratories have used N-9 as a control compound for microbicide assays. However, no published comparisons of the results among laboratories or attempts to establish standardized protocols for preclinical testing of microbicides have been perform...
In experiments to assess the in vitro impact of the candidate microbicides nonoxynol 9 (N-9), C31G, and sodium dodecyl sulfate (SDS) on human immune and epithelial cell viability, cell lines and primary cell populations of lymphocytic and monocytic origin were generally shown to be equally sensitive to exposures ranging from 10 min to 48 h. However, U-937 cells were more sensitive to N-9 and C3...
OBJECTIVE To evaluate the safety of the antimicrobial peptide, lactocin 160. METHODS Lactocin 160, a product of vaginal probiotic Lactobacillus rhamnosus 160 was evaluated for toxicity and irritation. An in vitro human organotypic vaginal-ectocervical tissue model (EpiVaginal) was employed for the safety testing by determining the exposure time to reduce tissue viability to 50% (ET-50). Hemol...
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