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https://www.readbyqxmd.com/read/28800850/characterization-of-the-autophagy-related-gene-bmatg8-in-bipolaris-maydis
#1
Takuya Sumita, Kosuke Izumitsu, Chihiro Tanaka
Autophagy is involved in cellular development and the maintenance of viability under nutrient deprivation in a wide range of eukaryotes. A filamentous ascomycete Bipolaris maydis, responsible for southern corn leaf blight, is also studied as a model fungus for sexual reproduction in filamentous ascomycetes that form filiform ascospores. In order to clarify the roles of autophagy in various stages of the life cycle of B. maydis, we constructed null mutants of BmATG8, an orthologue of the Saccharomyces cerevisiae autophagy gene ATG8 in B...
September 2017: Fungal Biology
https://www.readbyqxmd.com/read/28797154/-to-analyse-the-histopathological-results-of-patients-with-hpv16-18-positive-and-colposcopic-suspicious-lesions
#2
J X Zhang, T P Zheng, J Liu, Q X Wang, Y X Zhan, Z Y Zhang
Objective: To explore the value of histopathologic diagnosis after colposcopy for high-risk HPV16/18 positive patients with negative cytology or atypical squamous cells of undetermined significance (ASCUS) for early screening of cervical lesions. Methods: A retrospective study of cervical histopathologic diagnosis in the HPV16/18 positive patients received colposcopy evaluation before got the histology was carried out between January 2014 and January 2016. The cytology of the patients should be negative or ASCUS...
July 25, 2017: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/28796882/cytology-versus-hpv-testing-for-cervical-cancer-screening-in-the-general-population
#3
REVIEW
George Koliopoulos, Victoria N Nyaga, Nancy Santesso, Andrew Bryant, Pierre Pl Martin-Hirsch, Reem A Mustafa, Holger Schünemann, Evangelos Paraskevaidis, Marc Arbyn
BACKGROUND: Cervical cancer screening has traditionally been based on cervical cytology. Given the aetiological relationship between human papillomavirus (HPV) infection and cervical carcinogenesis, HPV testing has been proposed as an alternative screening test. OBJECTIVES: To determine the diagnostic accuracy of HPV testing for detecting histologically confirmed cervical intraepithelial neoplasias (CIN) of grade 2 or worse (CIN 2+), including adenocarcinoma in situ, in women participating in primary cervical cancer screening; and how it compares to the accuracy of cytological testing (liquid-based and conventional) at various thresholds...
August 10, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28791267/atypical-squamous-cells-of-undetermined-significance-and-low-grade-squamous-intraepithelial-lesion-triage-in-korean-women-revisiting-the-2012-american-society-of-colposcopy-and-cervical-pathology-screening-guidelines
#4
Ji Yeon Hyun, Kyung-Jin Min, Sun Young Yang, Jae-Kwan Lee, Jin Hwa Hong
OBJECTIVE: To determine whether triage for atypical squamous cells of undetermined significance (ASC-US) and low-grade squamous intraepithelial lesion (LSIL) from the updated American Society for Colposcopy and Cervical Pathology cervical cancer screening guidelines is applicable in Korean women. METHODS: We investigated women with ASC-US or LSIL including referred from local hospitals visited for cervical cancer screening at Korea University Guro Hospital from February 2004 to December 2014...
July 2017: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/28761025/eleven-year-review-of-data-on-pap-smears-in-saudi-arabia-we-need-more-focus-on-glandular-abnormalities
#5
Haitham Nasser, Mohammad AlAyyaf, Azza Atallah, Mohammad Aminulislam, Lubna Rizwan, Abdulsalam Aodah, Yasser Alkahtani, Haifa Alshammari, Ahmed Alsayed, Susan Szpunar
BACKGROUND: We reviewed data from Saudi Arabia on epithelial cell abnormalities (ECA) detected by Pap smear after noticing a slight increase in the incidence of cervical glandular abnormalities in our regional laboratory in recent years. OBJECTIVE: Clarify data on adenocarcinoma (ADCA) on Pap smears in Saudi Arabia. DESIGN: Descriptive, retrospective study. SETTINGS: Regional laboratory, Riyadh. PATIENTS AND METHODS: We reviewed all Pap smears of adult females between 2006 and 2016 and compared our data with previously published results from Saudi Arabia...
July 2017: Annals of Saudi Medicine
https://www.readbyqxmd.com/read/28761009/ascus-dysgenesis-in-hybrid-crosses-of-neurospora-and-sordaria-sordariaceae
#6
Durgadas P Kasbekar
When two lineages derived from a common ancestor become reproductively isolated (e.g. Neurospora crassa and N. tetrasperma), genes that have undergone mutation and adaptive evolution in one lineage can potentially become dysfunctional when transferred into the other, since other genes have undergone mutation and evolution in the second lineage, and the derived alleles were never 'tested' together before hybrid formation. Bateson (1909), Dobzhansky (1936), and Muller (1942) recognized that incompatibility between the derived alleles could potentially make the hybrid lethal, sterile, or display some other detriment...
July 2017: Journal of Genetics
https://www.readbyqxmd.com/read/28728222/-application-of-p16-ki-67-immunocytochemistry-in-triage-of-patients-with-atypical-squamous-cells-of-undetermined-significance
#7
R R Jin, H W Ma, T Y Chen, R Rong, Y Wu, S L Li, Z H Zhang
Objective: To investigate the clinical value of p16/Ki-67 immunocytochemistry in patients with atypical squamous cells of undetermined significance(ASC-US). Methods: One hundred and seventy-one cases of thin-prep cytology test (TCT) diagnosed as ASC-US underwent p16/Ki-67 immunocytochemistry. All patients had colposcopy and biopsy from March 2015 to January 2016. Ninety of the 171 cases underwent high-risk HPV test at the same time. Results: p16/Ki-67 immunocytochemistry was positive in 43.9% (75/171) of the 171 cytology samples; the sensitivity and specificity of p16/Ki-67 immunocytochemistry were 77...
July 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/28723712/the-role-of-oncogenic-hpv-determination-for-diagnosis-of-high-grade-anal-intraepithelial-neoplasia-in-hiv-infected-msm
#8
Joaquin Burgos, J Hernández-Losa, S Landolfi, A Guelar, Mªc Dinares, J Villar, J Navarro, E Ribera, V Falcó, A Curran
OBJECTIVE: To assess the oncogenic human papillomavirus (HPV) determination and the co-testing HPV and anal cytology value to detect high-grade anal intraepithelial neoplasia (HGAIN) in a cohort of HIV-MSM. DESIGN AND METHODS: Prospective study of HIV-infected MSM who underwent screening for anal dysplasia. Screening program includes anal cytology, HPV testing, and high-resolution anoscopy (HRA) at each visit. Histological samples were obtained if suspicious lesions were revealed by HRA...
July 18, 2017: AIDS
https://www.readbyqxmd.com/read/28707725/preventive-effect-of-human-papillomavirus-vaccination-on-the-development-of-uterine-cervical-lesions-in-young-japanese-women
#9
Hidenori Tanaka, Hiromitsu Shirasawa, Dai Shimizu, Naoki Sato, Noriaki Ooyama, Osamu Takahashi, Yukihiro Terada
AIM: To examine the effect that human papillomavirus (HPV) vaccination has had in Akita Prefecture, by comparing cervical cytology results from women aged 20-24 years with or without HPV vaccination. METHODS: We examined cervical cytology results from 2425 subjects who underwent cervical cancer screening under the jurisdiction of the Akita Foundation for Healthcare between January 2014 and October 2016. We compared the prevalence of cytologic abnormalities among women aged 20-24 years with or without HPV vaccination...
July 14, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28694293/the-trophic-life-cycle-stage-of-the-opportunistic-fungal-pathogen-pneumocystis-murina-hinders-the-ability-of-dendritic-cells-to-stimulate-cd4-t-cell-responses
#10
Heather M Evans, Andrew Simpson, Shu Shen, Arnold J Stromberg, Carol L Pickett, Beth A Garvy
The life cycle of the opportunistic fungal pathogen Pneumocystis murina consists of a trophic stage and an ascus-like cystic stage. Infection with the cyst stage induces proinflammatory immune responses, while trophic forms suppress the cytokine response to multiple PAMPs, including β-glucan. A targeted gene expression assay was used to evaluate the dendritic cell response following stimulation with trophic forms alone, a normal mixture of trophic forms and cysts, or with β-glucan. We demonstrate that stimulation with trophic forms downregulated the expression of multiple genes normally associated with the response to infection, including genes encoding transcription factors...
July 10, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28692865/live-cell-confocal-laser-imaging-studies-on-the-nuclear-behavior-during-meiosis-and-ascosporogenesis-in-morchella-importuna-under-artificial-cultivation
#11
Peixin He, Ke Wang, Yingli Cai, Wei Liu
The commercial production of Morchella mushrooms, especially M. importuna, has been realized since 2012 in China, which facilitates the fundamental studies of Morchella spp. In this paper, the cytological characteristics at three stages of ascocarpic development and the nuclear behavior during meiosis and ascosporogenesis in cultivated strain M. importuna 1(#) was visualized by confocal laser scanning microscopy. The results suggested that the strain sporulated at sporulation stage of ascocarpic development...
June 29, 2017: Micron: the International Research and Review Journal for Microscopy
https://www.readbyqxmd.com/read/28692681/cervical-hpv-type-specific-pre-vaccination-prevalence-and-age-distribution-in-croatia
#12
Ivan Sabol, Nina Milutin Gašperov, Mihaela Matovina, Ksenija Božinović, Goran Grubišić, Ivan Fistonić, Dragan Belci, Laia Alemany, Sonja Džebro, Mara Dominis, Mario Šekerija, Sara Tous, Silvia de Sanjosé, Magdalena Grce
The main etiological factor of precancerous lesion and invasive cervical cancer are oncogenic human papillomaviruses types (HPVs). The objective of this study was to establish the distribution of the most common HPVs in different cervical lesions and cancer prior to the implementation of organized population-based cervical screening and HPV vaccination in Croatia. In this study, 4,432 cervical specimens, collected through a 16-year period, were tested for the presence of HPV-DNA by polymerase chain reaction (PCR) with three sets of broad-spectrum primers and type-specific primers for most common low-risk (LR) types (HPV-6, 11) and the most common high-risk (HR) types (HPV-16, 18, 31, 33, 45, 52, 58)...
2017: PloS One
https://www.readbyqxmd.com/read/28688605/human-papillomavirus-prevalence-in-the-anus-and-urine-among-hiv-infected-japanese-men-who-have-sex-with-men
#13
Hiroshi Yaegashi, Kazuyoshi Shigehara, Ichiro Itoda, Mitsuaki Ohkodo, Kazufumi Nakashima, Shohei Kawaguchi, Mikio Ueda, Koji Izumi, Yoshifumi Kadono, Hiroko Ikeda, Mikio Namiki, Atsushi Mizokami
BACKGROUND: The present study investigated human papillomavirus (HPV) prevalence in anal and urine samples, and evaluated cytological findings among human immunodeficiency virus (HIV)-infected Japanese men who have sex with men (MSM). METHODS: A total of 148 patients were enrolled. Anal and urine samples were collected from each participant, and a HPV-DNA test and genotyping were performed using flow-through hybridization. In addition, anal cytology was evaluated based on Papanicolaou staining...
September 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28685798/cyto-colpo-histologic-correlation-about-an-analytical-study-of-120-colposcopies
#14
Olfa Slimani, Riadh Ben Temim, Tahar Makhlouf, Nabil Mathlouthi, Leila Attia
PROBLEM: Cervical cancer is the second gynecological cancer Tunisian women after breast. This is a sexually transmitted disease including the role of HPV has been proven. Cervical cancer screening is possible due to the accessibility of the cervix with a speculum examination and implementation of cervical smear. AIM OF THE WORK: To study the epidemiological and clinical data of patients, analyze the results of the Pap test, colposcopy and cervical biopsy staging are the lesions observed in colposcopy, compare the results of smears, colposcopy and cervical biopsy...
October 2016: La Tunisie Médicale
https://www.readbyqxmd.com/read/28676631/rna-editing-of-the-amd1-gene-is-important-for-ascus-maturation-and-ascospore-discharge-in-fusarium-graminearum
#15
Shulin Cao, Yi He, Chaofeng Hao, Yan Xu, Hongchang Zhang, Chenfang Wang, Huiquan Liu, Jin-Rong Xu
Ascospores are the primary inoculum in the wheat scab fungus Fusarium graminearum that was recently shown to have sexual stage-specific A-to-I RNA editing. One of the genes with premature-stop-codons requiring A-to-I editing to encode full-length functional proteins is AMD1 that encodes a protein with a major facilitator superfamily (MFS) domain. Here, we characterized the functions of AMD1 and its UAG to UGG editing event. The amd1 deletion mutant was normal in growth and conidiation but defective in ascospore discharge due to the premature breakdown of its ascus wall in older perithecia, which is consistent with the specific expression of AMD1 at later stages of sexual development...
July 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28657397/histological-outcomes-in-conventional-cervical-cytology-for-invasive-carcinoma-not-always-cancer
#16
Flávia Regina Peixoto Pereira, Leila Cristina Soares, Marco Aurélio Pinho de Oliveira
The value of cytology for the detection of invasive cancer remains unknown. We performed a retrospective cohort study with 884 patients diagnosed of premalignant lesions and invasive carcinoma in cytology. 382 (43.2%) of them had cytological results of high-grade squamous intraepithelial lesions (HSIL), 244 (27.6%) showed low-grade squamous intraepithelial lesions (LSIL), 120 (13.6%) patients had atypical squamous cells of undetermined significance (ASC-US), 67 (7.6%) patients with atypical squamous cells, cannot exclude high-grade squamous intraepithelial lesion (ASC-H), 38 (4...
June 28, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28657224/nationwide-cervical-cancer-screening-in-korea-data-from-the-national-health-insurance-service-cancer-screening-program-and-national-cancer-screening-program-2009-2014
#17
Seung Hyuk Shim, Hyeongsu Kim, In Sook Sohn, Han Sung Hwang, Han Sung Kwon, Sun Joo Lee, Ji Young Lee, Soo Nyung Kim, Kunsei Lee, Sounghoon Chang
OBJECTIVE: The rates of participation in the Korean nationwide cervical cancer screening program and the rates of abnormal test results were determined. METHODS: The database of the National Health Insurance Service (NHIS) was used during the study period (2009-2014). RESULTS: The participation rate increased from 41.10% in 2009 to 51.52% in 2014 (annual percentage change, 4.126%; 95% confidence interval [CI]=2.253-6.034). During the study period, women ≥70 years of age had the lowest rate of participation (range, 21...
September 2017: Journal of Gynecologic Oncology
https://www.readbyqxmd.com/read/28655061/outcomes-in-women-with-cytology-showing-atypical-squamous-cells-of-undetermined-significance-with-vs-without-human-papillomavirus-testing
#18
Jack Cuzick, Orrin Myers, Ji-Hyun Lee, Yang Shi, Julia C Gage, William C Hunt, Michael Robertson, Cosette M Wheeler
Importance: Little is known about the long-term yield of high-grade cervical intraepithelial neoplasia (CIN) and the influence on biopsy and treatment rates of human papillomavirus (HPV) triage of cytology showing atypical squamous cells of undetermined significance (hereafter ASC-US cytology). Objective: To examine 5-year outcomes after ASC-US cytology with vs without HPV testing. Design, Setting, and Participants: In this observational study, all cervical cytology and HPV testing reports from January 1, 2007, to December 31, 2012, were obtained for women throughout New Mexico and linked to pathology reports...
June 22, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28654967/human-papillomavirus-triage-of-women-with-atypical-squamous-cells-of-undetermined-significance-reduction-of-overtreatment-needed
#19
Chris J L M Meijer, Peter J F Snijders
No abstract text is available yet for this article.
June 22, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28643492/human-papillomavirus-genotype-distribution-among-18-815-women-in-13-korean-cities-and-relationship-with-cervical-cytology-findings
#20
Eun Hee Nah, Seon Cho, Suyoung Kim, Han Ik Cho
BACKGROUND: The prevalence and genotype distribution of Human papillomavirus (HPV) infection vary depending on geographical region and the immunity provided by vaccines. This study aimed to clarify the recent prevalence and genotype distribution of HPV according to age and cervical cytology findings in Korea. METHODS: This study included 18,815 health examinees that underwent cervical cytology and HPV genotyping tests at 16 centers of Korean Association of Health Promotion in 13 cities in Korea, between January 2014 and October 2015...
September 2017: Annals of Laboratory Medicine
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