The Distribution of Human Papillomavirus Type 30 (HPV30) Lineages Among Women With Normal Cervical Cytology in China

Background: Human papillomavirus type 30 (HPV30) is involved in cervical diseases. In human immunodeficiency virus (HIV) positive women, the prevalence HPV30 is almost the same as HPV16. However, HPV30 has seldom been investigated. In order to better understand the prevalence and intratype lineage distribution of HPV30 in China, HPV30 infection among women with normal cytology was investigated.Methods: Prevalence of HPV30 was investigated by the screening of type specific polymerase chain reaction (PCR); intratype lineage distribution was performed by the phylogenetic analysis of the L2 DNA sequences of HPV30 isolates; the diversity of genetic variants of HPV30 isolates was also evaluated. Results: (1) The infection rate of HPV30 was 0.56% (9/1600). (2) All the nine HPV30 isolates belonged to lineage A, none belonged to lineage B. (3) Compared with the HPV30 prototype reference, 87 variations including 79 substitutions, four insertions and four deletions were observed in this study. (4) Sample 4 contained a C base deletion of the E2 gene resulting in an amino acid sequence shift. (5) Sample had a truncated L2 protein.Conclusions: The infection rate of HPV30 is 0.56% in this study. All of the HPV30 isolates belongs to lineage A. Natural L2 and E2 defective isolates of HPV30 were found.

The structure of cervical diseases in women suffering from pelvic floor dysfunction

Background. The prevalence of pelvic floor dysfunction (PFD) is soaring steadily. The protrusion of the cervix beyond vaginal opening when exposed to environmental factors can lead to the development of dystrophic, sclerotic and neoplastic processes of the cervix, which are mediated by changes in the pH, biocenosis of the vagina and environmental factors. Aim. To study the pathogenesis of cervical diseases in patients with PFD. Materials and methods. The study design is an open-label prospective observational study. The study included 40 patients of reproductive age: 26 patients with cervical disease with PFD (PFD group), 14 patients without cervical disease and PFD made up the second group. Results. The patients included in the study were comparable in terms of age and body mass index. Pap smear analysis revealed that the average number of leukocytes is significantly higher in patients with PFD compared to patients in the group without PFD 5.5 (1.520.0) and 1.5 (1.56.5) respectively (p=0.040). In PFD group, a high prevalence of the following conditions was observed: cervical leukoplakia (15%), CIN1 (38.5%), CIN2 (8%), chronic cervicitis (38.5%). Onco-cytological test results reviewed where the high prevalence of parakeratosis and hyperkeratosis (15%), ASCUS (15%), LSIL (23%) and HSIL (8%) were also noteworthy. It was observed that human papillomavirus type 16 was predominant in PFD patient group. Conclusion. The data obtained indicates an increased risk of developing cervical diseases in patients with PFD.

Frequency of abnormal cervical cytology in symptomatic women.

Objective: To estimate the frequency of abnormal cervical cytology detected by Pap smear. Study Design: Cross Sectional Study. Setting: Department of Obstetrics and Gynaecology Gambat Institute of Medical Sciences Gambat, Khairpur Sindh. Period: November 2018 to June 2019. Material & Methods: A total of 160 women with the complaint of heavy vaginal discharge and moderate to servere lowere abdominal pain more than 6 weeks were included in this study. Per speculum examination of cervix was carried out with the help of cuscos speculum before PAP smear and finding were noted, After labeling the sample was sent to histopathology for cytological examination. Results: The average age of the patient’s was 37.68±7.46 years. Percentage of normal smears 10%, advance disease 1.3% and percentage of inflammatory smear is 63.8% while frequency of abnormal cervical cytology was observed in 25% in which CIN-1 was 12.5%, CIN-2 was 11.3% and CIN-3 was 1.3%. Conclusion: Our population have large numbers of undiagnosed cervical diseases. Therefore, Pap smear testing should be widely used throughout Pakistan to reduce the incidence of cervical cancer.

Cervicovaginal Microbiome Factors in Clearance of Human Papillomavirus Infection

Persistent high-risk human papillomavirus (hrHPV) infection is the highest risk to cervical cancer which is the fourth most common cancer in women worldwide. A growing body of literatures demonstrate the role of cervicovaginal microbiome (CVM) in hrHPV susceptibility and clearance, suggesting the promise of CVM-targeted interventions in protecting against or eliminating HPV infection. Nevertheless, the CVM-HPV-host interactions are largely unknown. In this review, we summarize imbalanced CVM in HPV-positive women, with or without cervical diseases, and the progress of exploring CVM resources in HPV clearance. In addition, microbe- and host-microbe interactions in HPV infection and elimination are reviewed to understand the role of CVM in remission of HPV infection. Lastly, the feasibility of CVM-modulated and -derived products in promoting HPV clearance is discussed. Information in this article will provide valuable reference for researchers interested in cervical cancer prevention and therapy.

Diseases of the cervix – non-obvious consequences of pelvic floor muscle failure

The literature review presents domestic and foreign data on the relationship between pelvic floor dysfunction (PFD) and cervical diseases found in PubMed, Scopus, Embase and eLibrary systems over the past 10 years. This relationship is mainly realized due to alterations in vaginal biocenosis as the earliest clinical manifestation of PFD. The article describes PFD prevalence, classification, and risk factors for PFD. It also describes main methods of treatment and their side effects. The article provides data on changes in the vaginal biocenosis in PFD. Attention is paid to the risk for cervical intraepithelial neoplasia and cervical cancer in PFD.

Papillomaviral infection and cervical diseases in pregnant women. Risk factors of social status, reproductive and contraceptive behavior

Aim. To determine the risk factors for human papillomavirus of high carcinogenic risk (HPV HCR) and cervical diseases (CD) in pregnant women associated with the social status, reproductive and contraceptive behavior. Materials and methods. Design: open-label comparative non-interventional cohort study in parallel groups. The total number of patients 330 people, of whom 148 women were negative for HPV and 182 women were positive. They were divided into 4 groups depending on the presence or absence of CD. Methods: analysis of anamnesis data, general clinical, test Kvant-21 to determine HPV, cytological examination, extended colposcopy. Results. The most significant risk factors for HPV HRS infection were identified: history of mycoplasma infection (OR 5.9) and BV (OR 5.3), alcohol consumption (OR 4.0). A history of STIs (trichomoniasis and chlamydial infection), as well as more than 3 sexual partners (OR 2.7) were also significant. The most significant risk factors for CD in HPV-infected women were: age over 35 years (OR 3.8), a history of bacterial vaginosis (OR 3.0), and lack of regular screening (OR 2.4). The coitarche earlier than 16 years old (OR 2.2) also mattered. There were also found factors indicating a low risk of HPV infection the use of condoms (OR 0.3), and a low risk of CD was indicated by age under 25 years (OR 0.2) and regular screening (OR 0.3). Conclusion. HPV infection with HRS and the prevalence of CMC in pregnant women against the background of HPV infection is associated mainly with social risk factors, to a lesser extent with factors of reproductive and contraceptive behavior.

Transitional nystagmus in a Bow Hunter’s Syndrome case report

Background Bow Hunter’s Syndrome (BHS) is known as one of cervical diseases which causes vertigo, but the details of its vertigo, especially nystagmus and eye movement, are still incompletely understood. This time, we reported the first case of BHS with a nystagmus chart with video record of transitional nystagmus. Case presentation The patient, a 47-year-old female, complained of vertigo caused by head rotation. When she turned her head leftward, leftward nystagmus appeared, and this was followed by dullness of the right arm. After her head was returned to the central position, downbeat nystagmus appeared, which changed to rightward nystagmus. She was diagnosed with BHS by her symptoms and images. We recorded a nystagmus video and nystagmus chart of this transitional nystagmus including downbeat nystagmus. Her vertigo was cured by the modification of a prescription for her past medical history: hypertension. Conclusion The vertigo of BHS accompanies nystagmus. In this present case, the transitional nystagmus was observed, and it occurred toward the healthy side. Then the nystagmus direction was changed to the affected side via downbeat nystagmus. This is the first report with both a nystagmus chart with video of BHS. Nowadays, various kinds of vertigo induced by neck movement are known. BHS is a rare disease among vertigo diseases, but we should consider it as a different diagnosis of vertigo patients. A precise interview and proper examination are required to make the final diagnosis.