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Sonia Menon, Aibibula Wusiman, Marie Claude Boily, Mbabazi Kariisa, Hillary Mabeya, Stanley Luchters, Frode Forland, Rodolfo Rossi, Steven Callens, Davy Vanden Broeck
BACKGROUND: There is a scarcity of data on the distribution of human papillomavirus (HPV) genotypes in the HIV positive population and in invasive cervical cancer (ICC) in Kenya. This may be different from genotypes found in abnormal cytology. Yet, with the advent of preventive HPV vaccines that target HPV 16 and 18, and the nonavalent vaccine targeting 90% of all ICC cases, such HPV genotype distribution data are indispensable for predicting the impact of vaccination and HPV screening on prevention...
2016: PloS One
Lydia S Murdiyarso, Melissa Kartawinata, Iffat Jenie, Grace Widjajahakim, Heriawaty Hidajat, Ruth Sembiring, I Made Nasar, Santoso Cornain, Farid Sastranagara, Ahmad Rusdan Handoyo Utomo
PURPOSE: We sought to evaluate prevalence, age-adjusted distribution, and impact of single and multiple high- and low-risk human papillomavirus (HPV) subtypes and their associations with cervical lesions. METHODS: Data were extracted from 11,224 women who underwent routine screening of HPV genotyping and liquid-based cytology co-testing. Fifteen high-risk (HR) and six low-risk (LR) HPV types were genotyped. RESULTS: Overall HPV prevalence was 10...
October 17, 2016: Cancer Causes & Control: CCC
Nobuyoshi Ozawa, Kiyoshi Ito, Toru Tase, Hirohito Metoki, Nobuo Yaegashi
Prevention of cervical cancer has been unsuccessful in Japan because of low rates of cancer screening and vaccination. The Vaccine Adverse Review Committee of the Japanese Government investigated 2,475 adverse events and reported 617 (6.9/100,000) severe cases and 176 (2.0/100,000) cases with chronic pain. The proactive recommendation for human papillomavirus (HPV) vaccination has been suspended since June 2013. In this study, we examined vaccination rate and incidence of abnormal cervical cytology in women aged 20 to 24 years attending cancer screening in Miyagi...
2016: Tohoku Journal of Experimental Medicine
Jing Rui Tang, Nor Ashidi Mat Isa, Ewe Seng Ch'ng
Pap test involves searching of morphological changes in cervical squamous epithelial cells by pathologists or cytotechnologists to identify potential cancerous cells in the cervix. Nuclear membrane irregularity is one of the morphological changes of malignancy. This paper proposes two novel techniques for the evaluation of nuclear membrane irregularity. The first technique, namely, penalty-driven smoothing analysis, introduces different penalty values for nuclear membrane contour with different degrees of irregularity...
2016: PloS One
Marcelo Simonsen, José Humberto Tavares Guerreiro Fregnani, Júlio Cesar Possati Resende, Márcio Antoniazzi, Adhemar Longatto-Filho, Cristovam Scapulatempo-Neto
OBJECTIVES: To compare the performance of two cervical collection devices (Cytobrush+Ayres spatula and Cervex-Brush® Combi) for cellular sampling, transformation zone representation and accuracy in diagnosing cervical intraepithelial neoplasia (CIN) 2+. METHODS: Cervical samples were collected from patients referred to the colposcopy unit of the Barretos Cancer Hospital between September 2013 and October 2014 using one of the two sampling devices. Additionally, colposcopy was performed with or without cervical biopsy and/or endocervical curettage...
2016: PloS One
Ester Miralpeix, Jordi Genovés, Josep Maria Solé-Sedeño, Gemma Mancebo, Belen Lloveras, Beatriz Bellosillo, Francesc Alameda, Ramon Carreras
p16(INK4a) (p16) tumor-suppressor protein is a biomarker of human papillomavirus (HPV) oncogenic activity that has revealed a high rate of positivity in histological high-gade squamous intraepithelial lesion/cervical intraepithelial neoplasia grade 2 (HSIL/CIN2) lesions. However, there is a paucity of data regarding p16 status as a surrogate marker of HSIL/CIN2 evolution. The aim of this study was to evaluate the outcome of HSIL/CIN2 patients followed up without treatment for 12 months according to p16 immunohistochemical staining...
October 14, 2016: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
Elaine W Flagg, Elizabeth A Torrone, Hillard Weinstock
OBJECTIVES: To examine prevalence of low- and high-grade cervical lesions over time in a large cohort of US female adolescents and women. METHODS: We used health care claims data from 9 million privately insured female patients aged 15 to 39 years to estimate annual prevalence of cytologically detected cervical low-grade (LSIL) and high-grade squamous intraepithelial lesions (HSIL) and high-grade histologically detected cervical intraepithelial neoplasia grades 2 and 3 (CIN2+) during 2007 through 2014...
October 13, 2016: American Journal of Public Health
Robert Makowsky, Pema Lhaki, Howard W Wiener, Madhav P Bhatta, Michael Cullen, Derek C Johnson, Rodney T Perry, Mingma Lama, Joseph F Boland, Meredith Yeager, Sarita Ghimire, Thomas R Broker, Sadeep Shrestha
OBJECTIVES/BACKGROUND: Sequence variants in HPV16 confer differences in oncogenic potential; however, to date there have not been any HPV sequence studies performed in Nepal. The objective of this study was to characterize HPV16 viral genome sequences from Nepal compared to a reference sequence in order to determine their lineages. Additionally, we sought to determine if five High-grade Squamous Intraepithelial Lesion (HSIL) subjects were genetically distinct from the non-HSIL subjects...
October 7, 2016: Infection, Genetics and Evolution
Laurențiu Pirtea, Dorin Grigoraş, Petru Matusz, Marilena Pirtea, Lavinia Moleriu, Anca Tudor, Răzvan Ilina, Cristina Secoşan, Florin Horhat, Octavian Mazilu
BACKGROUND: Persistent infections with high risk human papillomaviruses (HR-HPV) cause virtually all cervical cancers. METHODS: An observational study was conducted aiming to estimate the rate of HPV infection persistence after LEEP in patients with high grade squamous intraepithelial lesions (HSIL). Moreover, the study investigated if persistence is age related. For this reason a total of 110 patients were included between January 2010 and June 2015. RESULTS: At 6 months after LEEP the overall HPV infection persistence rate was 40...
October 6, 2016: BMC Surgery
Mahira Jahic, Elmir Jahic
BACKGROUND: Atypical squamous cells of undetermined significance (ASCUS) is a term that refers to inflammatory, reactive and reparative processes which are atypical and of higher level and insufficient to be classified as cervical intraepithelial lesions (CIN). AIMS: Examine of frequency of HPV infection in ASCUS lesions and regression, stagnation and progression during six-month period. SUBJECTS AND METHODS: Prospective study was conducted over a period of 3 years...
July 27, 2016: Medical Archives
Haie Zhu, Wen Fan, Shuxue Zhou, Min Chen, Limin Wu
Optical microscope is widely used real-time investigation tool, but usually suffers from low resolution due to Abbe diffraction limit. Herein, we design and successfully synthesize ZrO2/polymer hybrid colloidal microspheres with as high as 47.5 wt% inorganic nanoparticles by suspension polymerization of 9,9'-bis[4-(2-acryloyloxyethyloxy) phenyl] fluorene (BAEPF). Owing to the homogeneous dispersion, high density and high refractive index of inorganic nanoparticles and deformability of polymer, the obtained ZrO2/poly(BAEPF) hybrid colloidal microspheres have high refractive index, optical transparency and controllable curvature, and thus can be directly used as a hybrid solid immersion lens (hSIL) for optical microscope, achieving super-resolution imaging of 50 nm even 45 nm under a standard white light or blue light optical microscopes, which is far beyond the diffraction limit for visible light optical microscopes...
October 4, 2016: ACS Nano
Yuko Sugiyama, Hiroshi Sasaki, Kyoko Komatsu, Ryuji Yabushita, Mizue Oda, Kenji Yanoh, Masatsugu Ueda, Hiroaki Itamochi, Kaoru Okugawa, Hiromasa Fujita, Toru Tase, Eiji Nakatani, Takuya Moriya
OBJECTIVE: To evaluate the efficacy of the automated screening system FocalPoint for cervical cytology quality control (QC) rescreening. False-negative rates (FNRs) were evaluated by a multi-institutional retrospective study. STUDY DESIGN: Cervical cytology slides that had already been reported as negative for intraepithelial lesion or malignancy (NILM) were chosen arbitrarily for FocalPoint rescreening. Slides stratified into the highest 15% probability of being abnormal were rescreened by a cytotechnologist...
September 28, 2016: Acta Cytologica
Z M Li, L Q Zeng, X H Peng, L Z Mao, X L Sun, Y H Li, X P Luo
Objective: To study the clinical and pathological characteristics of HPV-negative cervical cancer patients. Methods: Retrospective analysis of 785 cervical cancer patients in Guangdong Women and Children Hospital from Jan. 2005 to Oct. 2015. By detecting high- risk HPV infection by flow-through hybridization genechip technique. Results: (1)Among 785 cases of cervical cancer, 71 cases were negative for HPV infection tested by genechip technique, accounting for 9.0%(71/785), and the relative light units/cut off(RLU/CO)ratios of these 71 cases were less than 1 by hybird capture Ⅱ(HC-Ⅱ)methods...
September 25, 2016: Zhonghua Fu Chan Ke za Zhi
Ya-di Han, Xue-Bin Wang, Ning-Hua Cui, Shuai Zhang, Chen Wang, Fang Zheng
To assess the associations of P16INK4a methylation status with low-grade squamous intra-epithelial lesion (LSIL), high-grade squamous intra-epithelial lesion (HSIL), cervical cancer (CC) and their clinicopathological features, a meta-analysis with 29 eligible studies was conducted. Pooled odds ratios (ORs) with their 95% confidence intervals (CIs) were estimated to assess the strength of the associations. Heterogeneity, sensitivity of pooled results and publication bias were also evaluated. Overall, there was an increasing trend of P16INK4a hypermethylation rates among LSIL (21...
September 22, 2016: Oncotarget
(no author information available yet)
Vulvar intraepithelial neoplasia (VIN) is an increasingly common problem, particularly among women in their 40s. Although spontaneous regression has been reported, VIN should be considered a premalignant condition. Immunization with the quadrivalent or 9-valent human papillomavirus vaccine, which is effective against human papillomavirus genotypes 6, 11, 16, and 18, and 6, 11, 16, 18, 31, 33, 45, 52, and 58, respectively, has been shown to decrease the risk of vulvar high-grade squamous intraepithelial lesion (HSIL) (VIN usual type) and should be recommended for girls aged 11-12 years with catch-up through age 26 years if not vaccinated in the target age...
October 2016: Obstetrics and Gynecology
(no author information available yet)
Vulvar intraepithelial neoplasia (VIN) is an increasingly common problem, particularly among women in their 40s. Although spontaneous regression has been reported, VIN should be considered a premalignant condition. Immunization with the quadrivalent or 9-valent human papillomavirus vaccine, which is effective against human papillomavirus genotypes 6, 11, 16, and 18, and 6, 11, 16, 18, 31, 33, 45, 52, and 58, respectively, has been shown to decrease the risk of vulvar high-grade squamous intraepithelial lesion (HSIL) (VIN usual type) and should be recommended for girls aged 11-12 years with catch-up through age 26 years if not vaccinated in the target age...
October 2016: Obstetrics and Gynecology
Shabnam Akhter, Pradip Manna, Mohammed Kamal, C James Sung, W Dwayne Lawrence, M Ruhul Quddus
BACKGROUND: Bangladesh, with a population of 160 million and nearly half being women, has the 4th highest rate of cervical carcinoma deaths in the world. It is projected that ∼500,000 of these women would die of this entirely preventable cancer by 2030. HPV vaccination is not widely offered in Bangladesh. This pilot study is designed to find out the prevalence of rare and multi-viral high-risk HPV (hrHPV) subtype(s) infection which may help strategize a large scale vaccination program in tackling cervical carcinoma in the country...
2016: Diagnostic Pathology
Jane Shen-Gunther, Chiou-Miin Wang, Graham M Poage, Chun-Lin Lin, Luis Perez, Nancy A Banks, Tim Hui-Ming Huang
BACKGROUND: The Pap smear has remained the foundation for cervical cancer screening for over 70 years. With advancements in molecular diagnostics, primary high-risk human papillomavirus (hrHPV) screening has recently become an accepted stand-alone or co-test with conventional cytology. However, both diagnostic tests have distinct limitations. The aim of this study was to determine the association between HPV genotypes and cellular epigenetic modifications in three grades of cervical cytology for screening biomarker discovery...
2016: Clinical Epigenetics
Murat Öz, Nilüfer Çetinkaya, Elmas Korkmaz, Kerem Doğa Seçkin, Mehmet Mutlu Meydanlı, Tayfun Güngör
OBJECTIVE: To determine the optimal cone size to achieve a reliable sensitivity and specificity for clear surgical margins after cold knife conization (CKC). MATERIAL AND METHODS: The medical reports of patients who had high-grade cervical intraepithelial lesions, carcinoma in situ, or stage 1A1 microinvasive carcinoma in their CKC specimens between June 2008 and January 2015 were reviewed retrospectively. RESULTS: In total, 315 women fulfilled the inclusion criteria...
2016: Journal of the Turkish German Gynecological Association
Yuanyuan Wang, Shaohong Wang, Jinhui Shen, Yanyan Peng, Lechuan Chen, Ruiqin Mai, Guohong Zhang
Data of HPV genotype including 16 high-risk HPV (HR-HPV) and 4 low-risk HPV from 38,397 women with normal cytology, 1341 women with cervical cytology abnormalities, and 223 women with ISCC were retrospectively evaluated by a hospital-based study. The prevalence of high-risk HPV (HR-HPV) was 6.51%, 41.83%, and 96.86% in women with normal cytology, cervical cytology abnormalities, and ISCC, respectively. The three most common HPV types were HPV-52 (1.76%), HPV-16 (1.28%), and HPV-58 (0.97%) in women with normal cytology, whereas the most prevalent HPV type was HPV-16 (16...
2016: BioMed Research International
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