Human HPV18 IgM ELISA kit (DEIASL404)

Regulatory status: For research use only, not for use in diagnostic procedures.

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Size
96T
Sample
Serum, plasma
Species Reactivity
Human
Intended Use
For the qualitative determination of human papillomavirus type 18 antibody (IgM) concentrations in human serum, plasma.
Storage
The unopened kit should be stored at 2 - 8°C. Do not use the kit beyond the expiration date. The opened kit may be stored for up to 2 weeks at 2 - 8°C.
Precision
Intra-assay Precision (Precision within an assay): CV%<15%
Three samples of known concentration were tested twenty times on one plate to assess.
Inter-assay Precision (Precision between assays): CV%<15%
Three samples of known concentration were tested in twenty assays to assess.

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References


Durability of response to VGX-3100 treatment of HPV16/18 positive cervical HSIL

HUMAN VACCINES & IMMUNOTHERAPEUTICS

Authors: Bhuyan, Prakash K.; Dallas, Michael; Kraynyak, Kim; Herring, Timothy; Morrow, Matthew; Boyer, Jean; Duff, Susan; Kim, Joseph; Weiner, David B.

VGX-3100 is an investigational DNA-based immunotherapy being developed as an alternative to surgery and ablation for cervical High-Grade Squamous Intraepithelial Lesion (HSIL) with the aim of preserving reproductive health while treating precancerous disease. Response durability up to 1.5 y following dosing is now reported. Histologic regression and HPV16 and/or HPV 18 (HPV16/18) clearance were previously demonstrated in a randomized, placebo-controlled, double-blind trial and reported for 6 months after the last dose of VGX-3100 or placebo. The presence of HPV16/18, Pap smear diagnoses, and immunogenicity longer-term responses were assessed at 18 months after the last dose. 91% (32/35) VGX-3100-treated women, whose cervical HSIL regressed and avoided excision at 6 months following study treatment completion, had no detectable HPV16/18 at 18 months following treatment completion. These results were comparable to those for women who received placebo and then later underwent surgery. For VGX-3100 recipients who regressed at 6 months following study treatment completion and avoided excision during the trial, Pap testing showed no HSIL recurrence at 18 months following VGX-3100 treatment. VGX-3100-induced cellular immune responses specific for HPV 16/18 E6/E7 remained higher than for placebo control recipients at 18 months. In women with cervical HSIL who responded to VGX-3100 and were able to avoid surgery, clinical outcomes were comparable to the placebo control group which underwent conventional surgical treatment. These findings extend the understanding of the durability of the treatment effect of VGX-3100 up to 1.5 y and support that VGX-3100 could be used as an alternative to surgery.

Co-infection between genotypes of the human papillomavirus andChlamydia trachomatisin Mexican women

INTERNATIONAL JOURNAL OF STD & AIDS

Authors: Escarcega-Tame, Marco A.; Lopez-Hurtado, Marcela; Escobedo-Guerra, Marcos R.; Reyes-Maldonado, Elba; Castro-Escarpulli, Graciela; Guerra-Infante, Fernando M.

Not all human papillomavirus (HPV) infections develop into cervical cancer (CC), so it is proposed that other factors may influence this, such as co-infection withChlamydia trachomatis(CT). To identify the prevalence of co-infection, we included 189 women with suspicion of HPV. Viral typing was performed by carrying out the Roche HP Linear Array test, while CT detection was performed with the COBAS (R) TaqMan (R) 48 kit from Roche. Of the 189 women only 184 had an infection with HPV, CT or both: 56.6% were positive for one or several HPV genotypes, and 67.7% for CT. Clinical data showed an association between HPV and CIN I (n = 22; RR = 2.43; 95% CI 1.72-3.43, p < 0.05). CT infection was only associated with cervicitis (n = 40; RR = 1.73; 95% CI 1.34-2.23, p < 0.05). The CT-HPV co-infection rate was 28%. Co-infection revealed an association with CIN I (n = 31, RR= 3.33; 95% CI 2.08-5.34 p < 0.05), CIN III (n = 7; RR = 2.57; 95% CI 1.53-4.31, p < 0.05); and a significant risk of 2.3 (95% CI 1.08-4.90) times higher to develop CC; nevertheless, this risk was not statistically significant. CT/HPV co-infection was associated with the development of a high-grade lesion (CIN III) as well as an important risk for developing CC.

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