[Precancerous lesions of the cervix and their treatment].

Global cervical cancer incidence and mortality rank fourth in women with malignant tumors, which have been reduced by population-based cervical cancer screening. The previously used Papanicolaou cytological testing of cervical smears was replaced by the Bethesda classification, which facilitated the early detection of the pre-cancerous lesions, used together with other methods such as colposcopy, testing of high-risk genotypes of human papillomavirus (hrHPV) and molecular techniques. The recently introduced terminology as ASC (atypical squamous cells), ASC-US (ASC, undetermined significance), ASC-H (ASC, cannot exclude HSIL), as well LSIL and HSIL (low- and high-grade squamous intraepithelial lesions) is widely used in Hungary, which guides the treatments of the patients by the clinicians.

Increased miR-20b Level in High Grade Cervical Intraepithelial Neoplasia.

Cervical cancer is a common malignant tumor worldwide ranking fourth in incidence and mortality among females, which was reduced significantly by cytology screening and human papilloma virus (HPV) DNA testing. The specificity of cytology is high; however, the sensitivity is low, in contrast to the HPV DNA testing. Despite the success of these measures, new biomarkers are still considered to aim increasing sensitivity and specificity of screening and diagnosis.

Two ways of epigenetic silencing of TFPI2 in cervical cancer.

Objective: Comparison of human mRNA microarray results from tumor-associated and normal cervical fibroblasts revealed significant TFPI2 downregulation in tumor-associated fibroblasts isolated from cervical cancer, indicating that TFPI2 downregulation may play an important role in the pathogenesis of the disease. In the present work, we investigated the mechanism of TFPI2 downregulation in tumor-associated fibroblasts and tumor cells.

Methods: In vitro models of monocultures and co-cultures were established with tumor cells and fibroblasts to explore the changes of TFPI-2 expression and epigenetic modifications of the TFPI2 gene.

Dual-Stained Cervical Cytology and Histology with Claudin-1 and Ki67.

Several biomarkers are in use to improve the sensitivity and specificity of cervical cancer screening. Previously, increased expression of tight junction protein claudin-1 (CLDN1) was detected in premalignant and malignant cervical lesions and applied for cytology screening. To improve the specificity, a double immunoreaction with CLDN1/Ki67 was developed in the recent study.

Performance of a new HPV and biomarker assay in the management of hrHPV positive women: Subanalysis of the ongoing multicenter TRACE clinical trial (n > 6,000) to evaluate POU4F3 methylation as a potential biomarker of cervical precancer and cancer.

The ongoing Triage and Risk Assessment of Cervical Precancer by Epigenetic Biomarker (TRACE) prospective, multicenter study aimed to provide a clinical evaluation of the CONFIDENCE™ assay, which comprises a human papillomavirus (HPV) DNA and a human epigenetic biomarker test. Between 2013 and 2015 over 6,000 women aged 18 or older were recruited in Hungary. Liquid-based cytology (LBC), high-risk HPV (hrHPV) DNA detection and single target host gene methylation test of the promoter sequence of the POU4F3 gene by quantitative methylation-specific polymerase chain reaction (PCR) were performed from the same liquid-based cytology sample.

The Value of a Novel Panel of Cervical Cancer Biomarkers for Triage of HPV Positive Patients and for Detecting Disease Progression.

In the era of primary vaccination against HPV and at the beginning of the low prevalence of cervical lesions, introduction of screening methods that can distinguish between low- and high-grade lesions is necessary in order to maintain the positive predictive value of screening. This case-control study included 562 women who attended cervical screening or were referred for colposcopy and 140 disease free controls, confirmed by histology and/or cytology. The cases were stratified by age.

Claudin-1 as a Biomarker of Cervical Cytology and Histology.

Several immunochemistry tests are used for triaging human papilloma virus (HPV) and cytology positive cases in cervical cancer screening and as an adjunct test to diagnose cervical cancer. Claudin-1 (CLDN1) protein is a major component of the tight junction, shown to have altered expression in cervical cancer. In this study, value of CLDN1 was analysed as a screening and triage immunochemistry test compared to cytology and HPV testing.

Remodeling of extracellular matrix by normal and tumor-associated fibroblasts promotes cervical cancer progression.

Background: Comparison of tissue microarray results of 29 cervical cancer and 27 normal cervix tissue samples using immunohistochemistry revealed considerable reorganization of the fibrillar stroma of these tumors. Preliminary densitometry analysis of laminin-1, α-smooth muscle actin (SMA) and fibronectin immunostaining demonstrated 3.8-fold upregulation of laminin-1 and 5.

Dysregulation of microRNA expression in human cervical preneoplastic and neoplastic lesions.

Data discussed in recent reviews demonstrated that dysregulation of microRNA (miRNA) expression profiles occurs during cervical carcinogenesis and characteristic up- or downregulation of certain miRNAs might be used as biomarkers. The majority of altered miRNAs, however were found to be inconsistent upon comparison with cancerous and normal cervical epithelia in the discussed studies due to several reasons. The results obtained in this present review suggest the need for further investigations on miRNAs on larger sample sizes in order to indicate sensitivity and specificity by means of well defined, "unified" methods.

Claudin 1 expression characterizes human uterine cervical reserve cells.

Stem cells participate in cervical carcinogenesis but their function and exact features are still not clear. One type of stem-like cells are endocervical reserve cells (RCs), and their association with other normal/altered cervical cells is not exactly known. Epithelial cells are attached to each other by tight junctions.

[Results of the first human papilloma virus center in Hungary (2007-2011)].

Unlabelled: Human papilloma virus (HPV) is the most common sexually transmitted infection in the 21st century. It has been established that infections with specific HPV types are contributing factors to cervical cancer. Approximately 99.

[Clinical relevance of proximal tubal occlusion--diagnosis and therapy].

Clinical examination of potential tubal disease is an essential part of the investigation of infertility. Proximal tubal occlusion accounts for 10-25% of tubal factor infertility. Authors review the history, methods and value of the relevant diagnostic and therapeutic procedures of proximal tubal occlusion, as well as determine the exact role of hysteroscopic selective tubal cannulation in the work-up process.

[How can patients' understanding about their surgery be improved? - Implications for everyday practice].

Unlabelled: The patients' understanding about the treatments is a crucial result of the adequate communication. Inadequate communication may lead to misunderstanding, anxiety or litigation. Aiming to improve the patients' perception several educational options can be used, but video recording is a far superior medium regarding surgical procedures.

[Selective chromopertubation via hysteroscopic tubal cannulation].

Tubal infertility and particularly, proximal tubal occlusion (15-25%) is gaining increasing attention among experts of reproductive medicine. In case of bilateral tubal occlusion in vitro fertilization is indicated, since the expected pregnancy rate is the same as can be expected from macrosurgical procedures. Despite the fact that better and better results are being obtained by sophisticated assisted reproduction techniques, in vitro fertilization procedures that are performed unnecessarily or not indicated objectively can result in serious consequences for the patients as well as for health insurance.

[Women's knowledge about cervical cancer].

Unlabelled: The human papillomavirus-infection is one of the most frequent sexually transmitted disease; it is detectable in nearly all cases of cervical cancer. Nowadays, the incidence of cervical cancer is unacceptable high.

Aim: Our aim was to evaluate women's knowledge about the human papillomaviruses and cervical cancer.

Pleomorphic rhabdomyosarcoma of the uterus in a postmenopausal patient.

Pure rhabdomyosarcomas occurring in the adult uterus are very rare, with poor prognosis. We present a case of a 67-year-old woman with postmenopausal vaginal bleeding caused by pleomorphic rhabdomyosarcoma of the uterus, treated with hysterectomy, bilateral salpingo-oophorectomy, pelvic/paraaortic lymphadenectomy and partial sigmoidectomy. Postoperative chemotherapy (Doxorubicin) was given according to protocol.

Claudin 1 differentiates endometrioid and serous papillary endometrial adenocarcinoma.

Objective: The expression of claudins, the main tight junction proteins involved in cell adhesion and carcinogenesis, was studied in endometrioid (type I) and seropapillary (type II) endometrial adenocarcinoma. The characteristics and possible diagnostic potential of claudin expression pattern were investigated in the two cancer types having different prognosis.

Methods: Protein and mRNA expression of claudins was evaluated in 17 endometrioid carcinomas and 15 seropapillary adenocarcinomas by immunohistochemistry and real-time PCR in comparison with 38 cases of hyperplasia, normal proliferative and secretory endometrium samples.

Family history of early-onset cardiovascular disorders is associated with a higher risk of severe preeclampsia.

Aim: The aim was to evaluate familial early-onset cardiovascular disorders as potential risk factors for severe preeclampsia.

Study Design: A case-control study was carried out by interviewing 162 primiparous severely preeclamptic women and 521 primiparous healthy control patients after delivery to determine the frequency of cardiovascular disorders (chronic hypertension, myocardial infarction, stroke) developed before the age of 50 among their parents. The chi2-test was utilized to estimate odds ratios (OR) and 95% confidence intervals (95% CI).

Prenatal diagnosis of a giant congenital primary cerebral hemangiopericytoma.

Congenital primary intracranial hemangiopericytomas are exceptionally rare tumors. We present a case of a fetus, with the prenatal sonogram at 33 weeks of gestation revealing a large cerebral tumor. Because of the enlarged head, a cesarean section was performed.

Four pregnancies and two deliveries after unilateral orchidectomy and chemotherapy for testicular embryonal carcinoma.

This case report describes a 33-year-old patient diagnosed with left-sided testicular embryonic carcinoma with vascular invasion. Unilateral orchiectomy was performed and the patient subsequently underwent chemotherapy. He retained fertility and later fathered healthy children.

Changes of cell adhesion and extracellular matrix (ECM) components in cervical intraepithelial neoplasia.

Cell-cell and cell-extracellular matrix interaction is crucial in tumor progression. Tight junction (TJ) proteins as occludin and claudins (CLDNs) play important role in this process together with several extracellular matrix components, as syndecan. Our previous work suggested significant changes in the expression of claudins even in the early stages of cervical carcinogenesis.

Increased expression of claudins in cervical squamous intraepithelial neoplasia and invasive carcinoma.

Claudins (CLDNs), of which 24 types have been identified, are integral transmembrane proteins of the tight junctions that are critical for maintaining cell adhesion and polarity. They also act as selective barriers. Cells and tissues are characterized by individual CLDN patterns; the composition and levels of expression change during differentiation and tumor formation.

Effect of formalin, acetone, and RNAlater fixatives on tissue preservation and different size amplicons by real-time PCR from paraffin-embedded tissue.

RNA recovered from paraffin-embedded tissue has been reported to be a suitable substrate for polymerase chain reaction. During tissue fixation and paraffin embedding, RNA undergoes degradation, but with certain restrictions, it can be used for gene expression studies. At the same time, formalin-fixed, paraffin embedded histopathology archives contain an unestimable collection, which could be analyzed to investigate changes in mRNA expression in pathologic processes.