• Title/Summary/Keyword: HPV infection

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A Review on Korean Traditional Medicine Research against Human Papillomavirus Infection and Cervical Dysplasia - Focused on Randomized Controlled Trial of Human Papillomavirus Infection and Cervical Dysplasia - (인유두종 바이러스 감염과 자궁경부 이형성증과 관련된 한방 임상연구 동향 - 무작위 대조 비교 임상시험을 중심으로 -)

  • Chung, Jae-Ryung;Hwang, Deok-Sang;Lee, Jin-Moo;Jang, Jun-Bock;Lee, Chang-Hoon
    • The Journal of Korean Obstetrics and Gynecology
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    • v.32 no.4
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    • pp.55-66
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    • 2019
  • Objectives: This review is to figure out evidence that suggests the effectiveness of Korean Medicine treatments against Human Papilloma virus (HPV) infection and Cervical Dysplasia. Methods: Studies on HPV infection and cervical dysplasia were searched through 5 databases: Oriental Medicine Advanced Searching Integrated System (OASIS), Korean Studies Information Service System (KISS), the Journal of Korean Obstetrics & Gynecology, China Academic Journal (CAJ), Pubmed. After that, the articles were extracted with reference point of Korean Traditional Medicine. Results: 21 studies were included lastly according to selection criteria. In 21 studies, HPV turning - negative rate of Korean Medicine treatment group was higher than the control treatment group. Conclusions: 21 studies indicates that Korean Medicine treatment is effective in HPV infection and Cervical Dysplasia.

Human Papillomavirus Infections and p53 Expression in Prostatic Carcinoma (전립선 암조직에서의 사람파필로마바이러스의 감염과 p53단백질의 발현에 대한 연구)

  • Kwon, Dur-Han;Jin, Seung-Won;Kang, Byung-Tae;Yoon, Hee-Sik;Yoo, Wang-Don;Kim, Hyeun-Soo;Lee, Sang-Sook;Lee, Ho-Sa;Park, Sue-Nie
    • The Journal of Korean Society of Virology
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    • v.26 no.2
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    • pp.227-234
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    • 1996
  • Prostatic carcinoma is the leading second cause of cancer in men. Previous epidermiological studies implicated human papillomavirus as an infectious agent. Since there are only limited studies on the association of HPV to prosate cancer, we examined the prevalence of HPV infections in korean prostate cancer patients. We observed that out of 26 cases, 4 cases and 5 cases were infected by HPV 16(27%) and HPV 18 (31%), respectively and 3 cases by both (46%) and at least 18 were positive for HPV (69%). For these samples, immunohistochemical detection of the p53 and proliferative cell nuclear antigen (PCNA) were also studied, using monoclonal antibodies. Sixteen of 26 (61%) showed immunostaining for p53 protein. While 8 samples with no HPV infection (100%) showed all positive for p53 protein staining, less than half of the 18 patients with any HPV infection (44%) showed p53 protein staining. These findings indicate that altered expression of p53 protein occurs in the more than half of prostate cancers, however, p53 expression is less frequent in HPV infected tissues. This implies that there might be an inverse correlation in general between HPV infection and p53 amplification. However, while 50% (4 of 8) of HPV negative prostate cancer was positive for PCNA staining, 13 out of 18 HPV infected patients (72%) were positive. Therefore HPV infection is more strongly associated with increase proliferation. In addition HPV infected cancer patients are generally in more advanced status implying that HPV infection plays a role in the development of highly malignant prostatic carcinomas, eventhough the statistical significance of this interpretation might be waited for the analysis of more cases.

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Human papillomavirus Infection and its Vaccines: Knowledge and Attitudes of Primary Health Clinic Nurses in Kelantan, Malaysia

  • Jeyachelvi, K;Juwita, S;Norwati, D
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.8
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    • pp.3983-3988
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    • 2016
  • Background: Cervical cancer though preventable is still the leading cause of cancer death among women secondary to breast cancer. Persistent infection with HPV has been causally linked to the disease. A school based HPV vaccination program was introduced in late 2010 in Malaysia and nurse support is essential for its success. Objectives: To determine nurses knowledge and attitudes about HPV infection and its vaccines, and factors associated with their knowledge. Materials and Methods: This cross-sectional study was conducted among nurses working at primary health clinics in Kelantan from mid-June till the end of July 2014. Its involved 330 nurses selected through multistage random sampling. A validated self-administered questionnaire consisting of 11 items for the knowledge domain and eight items for the attitude domain was used. Results: The response rate of the study was 93.7%. The mean knowledge and mean attitude (SD) scores were 5.37 (1.76) and 29.8 (3.51) respectively. Only 24% knew that HPV is the most common sexually transmitted infection and 67% correctly answered that Gardasil vaccine can protect against four types of HPV. Nearly 60% of participants wrongly answered that HPV vaccines cannot be offered to sexually active women. Likewise, 70.9% participants were not aware that HPV vaccine may be appropriate for females aged 9 through 26 years. Though 90% of participants believed that the vaccine is safe, nearly half of them were unsure about efficacy. From multiple linear regression analysis, among the factors tested only participant's level of education showed a statistically significant association with the HPV knowledge score (p <0.001). Conclusions: This study indicates nurses have favorable attitudes towards HPV vaccination; however they have significant knowledge deficit and major misunderstanding in critical knowledge items. Among the factors tested, nursing qualification is the only factor that is significantly associated with the nurses knowledge score.

Correaltion of Human Papilloma Virus Infection Status with Tonsillar Squamous Cell Carcinoma (편도암의 발암 원인으로 Human Papilloma Virus를 통한 발암 기전과의 상관 관계)

  • Kim, Se-Heon;Byun, Hyung-Kwon;Cheon, Jei-Young;Park, Young-Min;Jung, Jin-Sei;Lee, So-Yoon
    • Korean Journal of Head & Neck Oncology
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    • v.23 no.1
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    • pp.21-25
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    • 2007
  • Background:Squamous cell carcinoma(SCC)of the palatine tonsils represents approximately 15-23% of all intraoral SCC. The most frequently reported risk factors for oropharyngeal cancer are smoking and alcohol. In a recent overview of HPV and tonsillar squamous cell carcinoma(TC), 51% contained HPV DNA, and HPV-16 being the most frequent type. We aimed to clarify whether HPV directly effects on the oncogenesis and biologic behavior of TC by comparison with infection prevalence, and physical status of virus. Material and Method:We used HPV genotyping DNA chip(Biocore, Korea, Seoul) arrayed by multiple oligonucleotide probes of L1 sequence of 26 types of HPV and HPV genotypes are identified by fluorescence scanner. The copy numbers of HPV E2 and E6 open reading frames(ORF) were assessed using a TaqMan-based 5'-exonuclease quantitative real-time PCR assay. The ratio of E2 to E6 copy numbers was calculated to determine the physical status of HPV-16 viral gene. Results:We observed a significant difference in HPV prevalence between 52 TCs and 69 CFTs(73.1% vs. 11.6%), and most of the HPVs were type 16(87.2%)and non-episomal(94.1%) state. Conclusions:This study regarding HPV infection prevalence and mechanism in the largest population of palatine tonsillar squamous cell carcinoma with chronic follicular tonsillitis revealed significant difference pf HPV prevalence between TC and CFT. Most of HPV were 16 type and integrated or mixed, HPV-16 integration could be directly related to tonsillar carcinogenesis.

Significance of p16 Positive Expression in Oropharyngeal Cancers

  • Bixofis, Regiane B.;Sassi, Laurindo Moacir;Patussi, Cleverson;Jung, Juliana E.;Ioshii, Sergio O.;Schussel, Juliana L.
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.23
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    • pp.10289-10292
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    • 2015
  • Background: The involvement of HPV in oral and oropharyngeal carcinogenesis was first proposed in 2004, based on epithelial HPV tropism and detection of HPV genotypes in oral squamous cell carcinoma samples. While 60-70% of oropharynx tumors may be HPV-positive, only 10 to 19% of tumors of the oral cavity, larynx and hypopharynx appear to have HPV infection. The aim of the study was to evaluate HPV infection associated with oropharyngeal cancer. Materials and Methods: Seventy-eight cases were selected for p16 immunoexpression reactions, and demographic data were collected for comparisons. Results: Most patients were over 60 years old, and 64.1% were smokers. Immunohistochemistry results showed that 86.3% of cases stained positive for p16 protein. Conclusion: The oropharyngeal cancer profile at Erasto Gaertner Hospital presented a high index of smokers over 60 years as well a high number of p16+ tumors, for what we can not determinate the main etiologic factor, but can be aware of the number of patients that presented HPV infection. Since prevention is still the best way to deal with cancer disease, it is important to analyze the interaction of these two etiologic factors and how to detect lesions at an early stage.

Prevalence of Human Papillomavirus Infection in the Korean Oral Cancer Patients (한국인 구강암 환자에서 인유두종 바이러스의 발현율 분석)

  • Kim, Hyun Soo;Seo, Mi Hyun;Kim, Soung Min;Cho, Young Ah;Lee, Suk Keun;Lee, Jong Ho;Myoung, Hoon
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.35 no.4
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    • pp.227-235
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    • 2013
  • Purpose: High risk human papillomavirus (HPV) is the main source of cervical cancer, nearly up to 100%. Because there are no affordable data regarding the incidence of HPV in different sites of oral cavity, the purpose of this study is to review the previous article and to find out about the incidence and types of HPV in specific areas of oral cavity. Methods: We examined a total of 106 patients with oral cavity cancer for HPV detection. Available DNA chip (MY-HPV chip kit$^{(R)}$, Mygene Co., Korea) was used for the detection of low risk HPV types (6, 11, 34, 40, 42, 43, 44) and high risk HPV types (16, 18, 31, 33, 35, 39, 45, 51, 52, 54, 56, 58). Patients were previously diagnosed as invasive cancer of oral cavity. Specimen used for HPV detection was extracted from the main mass during resection and were tested for HPV type, performed by a DNA chip method. Results: Histologic results showed that there were squamous cell carcinomas, mucoepidermoid carcinomas, cystadenocarcinomas, leiomyosarcoma and etc. Among HPV positive cancer, 2 patients showed positive for high risk HPV type 16, 3 patients showed positive for low risk HPV type 6 and the other 2 patients were positive for other types of HPV. Of the 7 patients with HPV positive, 4 patients were on the tongue, 3 on the lower gingiva. Conclusion: Most of the HPV positive cancers were on the tongue in our study. Cervical cancer of HPV infection is reported to be increasing in our society and because HPV infection largely spreads by sexual contact, the incidence of oral cancer with HPV infection is greatly assumed to be on the increase, simultaneously. Because the incidence of HPV on specific areas of oral cavity among oral cancer patients is not identified, more studies are ongoing.

Prevalence and Determinants of High-risk Human Papillomavirus Infection in Women with High Socioeconomic Status in Seoul, Republic of Korea

  • Kim, Ki-Dong;Kim, Jin-Ju;Kim, Sun-Mie;No, Jae-Hong;Kim, Yong-Beom
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.1
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    • pp.269-273
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    • 2012
  • We aimed to estimate the prevalence of high-risk human papillomavirus (HPV) infections in women of high socioeconomic status (SES) in Seoul, Republic of Korea and to identify risk factors. This study included 13,386 women visiting a prestigious healthcare center located in Seoul between 2003 and 2008. High-risk HPV infections were detected in 994 (7%) and the age-standardized prevalence was 8%. Abnormal Pap smear results ${\geq}$ atypical squamous cells of unknown significance (ASCUS) were observed in 280 of 12,080 women (2%). Based on univariate analysis, age, level of education and number of children were associated with high-risk HPV infections. Based on multivariate analysis, age and high-risk HPV infections had an inverse relationship. In women with high SES in Seoul, the prevalence of high-risk HPV infection was 7% and the age-standardized prevalence was 8%. Age was a strong determinant of high-risk HPV infection.

Human papilloma virus in oral cancer

  • Kim, Soung Min
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.42 no.6
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    • pp.327-336
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    • 2016
  • Cervical cancer is the second most prevalent cancer among women, and it arises from cells that originate in the cervix uteri. Among several causes of cervical malignancies, infection with some types of human papilloma virus (HPV) is well known to be the greatest cervical cancer risk factor. Over 150 subtypes of HPV have been identified; more than 40 types of HPVs are typically transmitted through sexual contact and infect the anogenital region and oral cavity. The recently introduced vaccine for HPV infection is effective against certain subtypes of HPV that are associated with cervical cancer, genital warts, and some less common cancers, including oropharyngeal cancer. Two HPV vaccines, quadrivalent and bivalent types that use virus-like particles (VLPs), are currently used in the medical commercial market. While the value of HPV vaccination for oral cancer prevention is still controversial, some evidence supports the possibility that HPV vaccination may be effective in reducing the incidence of oral cancer. This paper reviews HPV-related pathogenesis in cancer, covering HPV structure and classification, trends in worldwide applications of HPV vaccines, effectiveness and complications of HPV vaccination, and the relationship of HPV with oral cancer prevalence.

Knowledge, Attitudes, Practices and Barriers Towards HPV Vaccination among Nurses in Turkey: a Longitudinal Study

  • Yanikkerem, Emre;Koker, Gokcen
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.18
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    • pp.7693-7702
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    • 2014
  • Background: Human papilloma virus (HPV) occurs in women of all age groups, and causes cervical, anal, vaginal, vulvar, penile and oropharyngeal cancers. The aim of the study was to discover what nurses know about HPV infection, testing and vaccination and to determine vaccine practice of their daughters and perceived barriers. Materials and Methods: This cross-sectional and prospective study was carried out nurses who have worked in a hospital between January and June 2014. Pre-test and post-test were used to evaluate the nurses' knowledge about HPV infection, testing and vaccination. This study was performed with nurses who had girls between 9 and 26 years of age for evaluating the behavior of vaccination after three months of education. Results: The mean of pre-test and post-test scores about HPV infection, which included 22 items, were $8.2{\pm}5.6$ and $19.2{\pm}1.5$, respectively. Before education the HPV testing knowledge score was remarkably poor ($1.9{\pm}1.7$ over 5), after education it increased to $4.8{\pm}0.5$. The mean HPV vaccine knowledge score were $3.7{\pm}2.7$ (pre-test) $7.3{\pm}0.8$ (post-test) on a 0-8 scale. The difference between mean total pre-test ($13.9{\pm}9.1$) and post-test ($31.3{\pm}1.9$) scores was statistically significant (p<0.001). After three months of education, only two of the nurses' daughters were vaccinated. The main reason was noted by nurses were not willing to be vaccinated was cost, doubts about safety and efficacy related to the vaccine. About one-third of nurses declared that they would receive the vaccine for their daughter later. Conclusions: Nurses have a crucial role in the prevention, treatment, increasing public awareness and care for population. The education of the nurses about HPV infection, test and vaccination will play an important part decreasing cancer mortality and morbidity.

Roles of Human Papillomaviruses and p16 in Oral Cancer

  • Sritippho, Thanun;Chotjumlong, Pareena;Iamaroon, Anak
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.15
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    • pp.6193-6200
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    • 2015
  • Head and neck cancer, including oral cancer, is the sixth most common cancer in humans worldwide. More than 90% of oral cancers are of squamous cell carcinoma type. Recent studies have shown a strong relationship between human papillomavirus (HPV) infection and head and neck cancer, especially oropharyngeal squamous cell carcinoma (OPSCC) and oral squamous cell carcinoma (OSCC). Moreover, the incidence of HPV-related OSCC appears to be on the rise while HPV-unrelated OSCC tends to have stabilized in the past decades. p16, a tumor suppressor gene, normally functions as a regulator of the cell cycle. Upon infection with high-risk types of HPV (HR-HPV), particularly types 16, 18, 31, 33, 34, 35, 39, 51, 52, 56, 58, 59, 66, 68, and 70, the expression of p16 is aberrantly overexpressed. Therefore, the expression of p16 is widely used as a surrogate marker for HPV infection in head and neck cancer.