Significance of the viral load of high-risk HPV in the diagnosis and prediction of cervical lesions: a retrospective study

Background The significance of HPV viral load in the detection of cervical lesions is still controversial. This study analyzed the correlation between the high-risk HPV viral load and different cervical lesion degrees. Methods This retrospective study included women positive for high-risk HPV DNA and screened for cervical lesions between 01/2015 and 06/2018. The high-risk HPV DNA load was measured by the second-generation Hybrid Capture technology and classified as low, moderate, and high. Colposcopy and biopsy were performed in all patients. The patients were grouped as normal, cervical intraepithelial neoplasia (CIN) grade 1, CIN grade 2, CIN grade 3, and cervical cancer. Multivariable logistic regression was performed to explore the association between high-risk HPV DNA load and cervical lesions. The odds ratios (ORs) represent the odds for increasing from low to high viral load. Results Finally, 265 patients were grouped as normal (n = 125), CIN 1 (n = 51), CIN 2 (n = 23), CIN 3 (n = 46), and cervical cancer (n = 20). Among them, 139 (52.5%) had a low viral load, 90 (34.0) had a moderate viral load, and 36 (13.4%) had a high viral load. Taking the normal control group as a reference, a high viral load was an independent factor for CIN 1 (OR = 3.568, 95% CI: 1.164–10.941, P = 0.026), CIN 2 (OR = 6.939, 95% CI: 1.793–26.852, P = 0.005), CIN 3 (OR = 7.052, 95% CI: 2.304–21.586, P = 0.001), and cervical cancer (OR = 8.266, 95% CI: 2.120–32.233, P = 0.002). Conclusions Among women who underwent cervical biopsy, higher high-risk HPV viral load in cervical lesions was associated with a higher risk of high-grade cervical lesions.

Association Between Promoter Polymorphisms of IL-1Β, IL-4 and IL-6 Genes and a Viral Load Infected Women with Human Papillomavirus

Background: The purpose of this study was to investigate the association between IL-4 -589C>T, IL-6 -174G>C, IL-1β -31T>C and IL-1β -511C>T genes polymorphism with high concentrations of human papillomavirus (HPV), and the influence of gene-gene interactions on persistent human papillomavirus infection. Methods: In this study, 101 infected women with high HPV viral load and 93 healthy women were involved in a case-control study. Genotyping of SNPs for IL-4 -589C>T, IL-6 -174G>C, IL-1β -31T>C and IL-1β -511C>T genes was carried out by allele-specific PCR. Quantitative analysis of HPV-DNA was performed by Amplisens HPV HCR genotype-titer software. Gene-gene interactions were analyzed using multifactor dimensionality reduction (MDR) algorithm. Haplotype interactions were analyzed by HaploView 4.2 tool. Results: The study of single individual SNPs in promoters of IL-4 -589C>T, IL-6 -174G>C and IL-1β -31T>C genes did not reveal statistically significant difference in genotypesand allele frequencies among women with high HPV viral load and control group. The frequency of -511T allele and TT genotype of the IL-1β gene in case group was significantly higher than the one in control group (OR=1.71, p=0.012 and OR=2.02, p=0.046, respectively). Haplotype analysis revealed that -511C/-31T haplotype for IL-1β gene is significantly less common among women with high HPV viral load (p=0.018). Conclusion: The haplotype -511C/-31T for IL-1β gene is associated with a protective effect against increasing HPV viral load. The frequencies of -511T allele and -511TT genotype of the IL-1β -511C>T were significantly higher among women with HPV in comparison to control group.

Analysis of influencing factors of viral load in patients with high-risk human papillomavirus

Background High-risk human papillomavirus (HR-HPV) load is thought to be influenced by many factors, and the relationship between viral load and the degree of cervical lesion is controversial. This study explored the possible influencing factors of HR-HPV viral load in the uterine cervix. Methods A total of 605 women who needed colposcopic evaluation for abnormal cervical screening at the Affiliated Hospital of Weifang Medical University, China, between November 2017 and September 2018 were enrolled. Cervical specimens were collected from the endo- and ectocervix separately using two different cervical brushes. The hybrid capture II test was used to measure HR-HPV load. Age, histological severity, number of viral types, and area and location of cervical lesions were recorded. The correlations between viral load and influencing factors were analysed using univariate and multivariate analyses. Results HR-HPV load was positively correlated with age, histological severity, multiple HPV types and area of cervical lesions (P < 0.05). Viral load with the combination of endo- and ectocervical sampling was significantly higher than simple endocervical sampling (P < 0.001). Multivariate analysis showed that age, multiple HPV types and area of cervical lesions were independent factors for HR-HPV load with a combination of endo- and ectocervical sampling (P < 0.05). However, only age and area of cervical lesions were independent factors for viral load with simple endocervical sampling (P < 0.05). No significant association was found between viral load and lesion severity in multivariate analysis (P > 0.05). Conclusion HR-HPV load is influenced by age, histological severity, multiple viral types, area of cervical lesion and sampling methods. Age and area of cervical lesions are independent factors for viral load.

Intravaginal probiotic therapy as a way to manage genital HPV infection in women

Objective. To study the possibility of managing human papillomavirus (HPV) infection using intravaginal probiotic therapy. Patients and methods. In the first phase, a retrospective analysis of outpatient medical records of 125 patients for 2 years was caried out to assess the HPV infection outcomes depending on the initial viral load and the state of normal microbial flora. In the second phase (prospective analysis), 43 HPV-positive patients with Lactobacillus deficiency who received (n = 20) or did not receive (n = 23) intravaginal probiotic were selected. The dynamics of HPV viral load were evaluated during the study. The dynamics of Lactobacillus abundance under the influence of probiotic in the groups with different HPV infection outcomes were analyzed. Results. The outcome of HPV infection with HPV viral load of ≤5 lg DNA copies/106 cells depended on the state of normal microbial flora; the value of normal microbial flora with HPV viral load of 5 lg DNA copies/106 cells was not significant. Intravaginal probiotic therapy in combination with antiviral drug in HPV-positive patients with Lactobacillus deficiency was more effective in improving the HPV infection outcomes. A decrease in viral load or HPV elimination was more likely to occur if normal microbial flora was restored as a result of probiotic therapy. Conclusion. Adding intravaginal probiotic therapy with Lactoginal® to antiviral treatment is an effective way to manage HPV infection in the female reproductive tract. Key words: human papillomavirus, vagina, lactobacilli, cervix, epithelial cells

Clinical study on black raspberry extract on the negative rate and effectiveness of patients with persistent human papilloma virus infection

To investigate the negative rate and effectiveness of black raspberry extract in clearing persistent infection with human papilloma virus ( HPV), t hree hundred patients are included in the randomized, double blind, placebo controlled human trial for multicenter indication . The distribution ratio of the test ed group versus the control group is 2: 1 and the subject patients were given a preparation in the vagina before bed every other day, each dose was 3 g containing black raspberry extract (tested group) or placebo (control group). SPSS 20.0 was used for statistical analysis. Differences between groups were analyzed by the Rank Sum method or Chi square method. The results showed that 191 subjects in the tested group completed the trial , of which 139 subjects ( 72.8% were identified to have an effective clear ance of HPV ; 95 subjects in the control group completed the trial , of which only 15 subjects ( 15.8% were identified to have effective clearance of HPV. The difference between the two groups was statistically significant (  2 = P 0.001 ). The HPV viral load of the tested group was decreased from 224.7 RLU/CO to 88.6 RLU/CO whereas HPV viral load of the control group was ascend ed from 218.4 RLU/CO to 266.1 RLU/CO Thus , the present clinical observation suggested that b lack raspberry extract may be a potential candidate in targeting persistent infection with HPV.

Analysis of influencing factors of viral load in patients with high-risk human papillomavirus

Background: High-risk human papillomavirus (HR-HPV) load is thought to be influenced by many factors, and the relationship between viral load and the degree of cervical lesion is controversial. This study explored the possible influencing factors of HR-HPV viral load in the uterine cervix. Methods: A total of 605 women who needed colposcopic evaluation for abnormal cervical screening at the Affiliated Hospital of Weifang Medical University, China, between November 2017 and September 2018 were enrolled. Cervical specimens were collected from the endo- and ectocervix separately using two different cervical brushes. The hybrid capture II test was used to measure HR-HPV load. Age, histological severity, number of viral types, and area and location of cervical lesions were recorded. The correlations between viral load and influencing factors were analysed using univariate and multivariate analyses. Results: HR-HPV load was positively correlated with age, histological severity, multiple HPV types and area of cervical lesions (P<0.05). Viral load with the combination of endo- and ectocervical sampling was significantly higher than simple endocervical sampling (P<0.001). Multivariate analysis showed that age, multiple HPV types and area of cervical lesions were independent factors for HR-HPV load with a combination of endo- and ectocervical sampling (P<0.05). However, only age and area of cervical lesions were independent factors for viral load with simple endocervical sampling (P<0.05). No significant association was found between viral load and lesion severity in multivariate analysis (P>0.05). Conclusion: HR-HPV load is influenced by age, histological severity, multiple viral types, area of cervical lesion and sampling methods. Age and area of cervical lesions are independent factors for viral load.

Analysis on influencing factors of viral load in patients with high-risk human papillomavirus

Background: High-risk human papillomavirus (HR-HPV) load is thought to be influenced by many factors, and relationship between viral load and degree of cervical lesion is controversial. This study was to explore possible influencing factors of HR-HPV viral load in uterine cervix.Methods: 605 women who needed colposcopic evaluation for abnormal cervical screening in Affiliated Hospital of Weifang Medical University, China, between November 2017 and September 2018 were enrolled. Cervical specimens were collected from endo- and ectocervix separately using two different cervical brushes. Hybrid Capture II test was used to measure HR-HPV load. Age, histological severity, number of viral types, area and location of cervical lesions were recorded. The correlation between viral load and influencing factors was analysed using univariate and multivariate analysis.Results: HR-HPV load was positively correlated with age, histological severity, multiple HPV types and area of cervical lesions (P<0.05). Viral load with combination of endo- and ectocervical sampling was significantly higher than simple endocervical sampling (P<0.001). Multivariate analysis showed that age, multiple HPV types and area of cervical lesions were independent factors for HR-HPV load with combination of endo- and ectocervical sampling (P<0.05). However, only age and area of cervical lesions were independent factors for viral load with simple endocervical sampling (P<0.05). No significant association was found between viral load and lesion severity in multivariate analysis (P>0.05).Conclusion: HR-HPV load is influenced by age, histological severity, multiple viral types, area of cervical lesion and sampling methods. Age and area of cervical lesions are independent factors for viral load.

Significance of the Viral Load of High-risk Hpv in the Diagnosis and Prediction of Cervical Lesions: A Retrospective Study

Background: The significance of HPV viral load in the detection of cervical lesions is still controversial. This study analyzed the correlation between the high-risk (HR)-HPV viral load and different cervical lesion degrees.Methods: This was a retrospective study of the patients who first visited the hospital between January 2015 and June 2018. Patients with positive HR-HPV were screening for cervical cancer. The HR-HPV DNA load was measured by the second generation hybrid capture (HC2) technology. The patients grouped as normal, CIN I, CIN II, CIN III, and cervical cancer. Multivariable logistic regression was performed to explore the association between HR-HPV DNA load and cervical lesions.Results: Finally, 265 patients were grouped as normal (n=125), CIN I (n=51), CIN II (n=23), CIN III (n=46), and cervical cancer (n=20). Among them, 139 (52.5%) had a low viral load, 90 (34.0) had a moderate viral load, and 36 (13.4%) had a high viral load. Taking the normal control group as a reference, a high viral load was an independent factor for CIN I (CIN I: OR=3.959, 95%CI: 1.300-12.059, P=0.015) CIN II (OR=6.211, 95%CI: 1.641-23.513, P=0.007), CIN III (OR=7.002, 95%CI: 2.308-21.244, P=0.001), and cervical cancer (OR=9.439, 95%CI: 2.394-37.22, P=0.001).Conclusion: Cervical lesions are closely related to HR-HPV infection. Higher HR-HPV viral load in cervical lesions was associated with a higher risk of high-grade cervical lesions.

Analysis on influencing factors of viral load in patients with high-risk human papillomavirus

Background High-risk human papillomavirus (HR-HPV) load is thought to be influenced by many factors, and relationship between viral load and degree of cervical lesion is controversial. This study was to explore possible influencing factors of HR-HPV viral load in uterine cervix. Methods 605 women who needed colposcopic evaluation for abnormal cervical screening in Affiliated Hospital of Weifang Medical University, China, between November 2017 and September 2018 were enrolled. Cervical specimens were collected from endo- and ectocervix separately using two different cervical brushes. Hybrid Capture II test was used to measure HR-HPV load. Age, histological severity, number of viral types, area and location of cervical lesions were recorded. The correlation between viral load and influencing factors was analysed using univariate and multivariate analysis. Results HR-HPV load was positively correlated with age, histological severity, multiple HPV types and area of cervical lesions (P < 0.05). Viral load with combination of endo- and ectocervical sampling was significantly higher than simple endocervical sampling (P < 0.001). Multivariate analysis showed that age, multiple HPV types and area of cervical lesions were independent factors for HR-HPV load with combination of endo- and ectocervical sampling (P < 0.05). However, only age and area of cervical lesions were independent factors for viral load with simple endocervical sampling (P < 0.05). No significant association was found between viral load and lesion severity in multivariate analysis (P > 0.05). Conclusion HR-HPV load is influenced by age, histological severity, multiple viral types, area of cervical lesion and sampling methods. Age and area of cervical lesions are independent factors for viral load.