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https://www.readbyqxmd.com/read/28102109/epigenetic-regulation-of-rgs2-regulator-of-g-protein-signaling-2-in-chemoresistant-ovarian-cancer-cells
#1
Ercan Cacan
Regulator of G-protein signaling 2 (RGS2) is a GTPase-activating protein functioning as an inhibitor of G-protein coupled receptors (GPCRs). RGS2 dysregulation was implicated in solid tumour development and RGS2 downregulation has been reported in prostate and ovarian cancer progression. However, the molecular mechanism by which RGS2 expression is suppressed in ovarian cancer remains unknown. The expression and epigenetic regulation of RGS2 in chemosensitive and chemoresistant ovarian cancer cells were determined by qRT-PCR and chromatin immunoprecipitation assays, respectively...
January 19, 2017: Journal of Chemotherapy
https://www.readbyqxmd.com/read/28101360/successful-treatment-of-anti-nmda-receptor-encephalitis-with-a-prompt-ovarian-tumour-removal-and-prolonged-course-of-plasmapheresis-a-case-report
#2
Elzbieta Rypulak, Michal Borys, Pawel Piwowarczyk, Magdalena Fijalkowska, Beata Potrec, Justyna Sysiak, Janusz Spustek, Alicja Bartkowska-Sniatkowska, Jan Kotarski, Waldemar A Turski, Konrad Rejdak, Miroslaw Czuczwar
Anti-N-methyl-d-aspartate-receptor (NMDAR) encephalitis is an uncommon autoimmune disorder with a wide spectrum of neuropsychiatric symptoms. There is a great requirement to emphasize the importance of a multidisciplinary team approach in the process of diagnosis and treatment of the potentially fatal condition, including psychiatrists, neurologists, gynaecologists and intensivists. Physicians must be aware that psychiatric and neurological disorders, which are typical features for NMDAR encephalitis in young women with ovarian tumours, may progress into status epilepticus and respiratory insufficiency...
December 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28090814/personalized-dynamic-prediction-of-death-according-to-tumour-progression-and-high-dimensional-genetic-factors-meta-analysis-with-a-joint-model
#3
Takeshi Emura, Masahiro Nakatochi, Shigeyuki Matsui, Hirofumi Michimae, Virginie Rondeau
Developing a personalized risk prediction model of death is fundamental for improving patient care and touches on the realm of personalized medicine. The increasing availability of genomic information and large-scale meta-analytic data sets for clinicians has motivated the extension of traditional survival prediction based on the Cox proportional hazards model. The aim of our paper is to develop a personalized risk prediction formula for death according to genetic factors and dynamic tumour progression status based on meta-analytic data...
January 1, 2017: Statistical Methods in Medical Research
https://www.readbyqxmd.com/read/28089175/reduction-of-carcinomatosis-risk-using-icodextrin-as-a-carrier-solution-of-intraperitoneal-oxaliplatin-chemotherapy
#4
I Jouvin, H Najah, C Pimpie, C Canet Jourdan, R Kaci, M Mirshahi, C Eveno, M Pocard
There is no standard treatment in patients with high risk metachronous peritoneal carcinomatosis (PC) in colonic cancer, as perforated tumour or synchronous ovarian metastasis. Icodextrin 4% (ICDX), presently used to prevent postoperative abdominal adhesions, could inhibit the coactivation of the tumour cells and the microenvironment cells, associated with the development of PC. The aim of this study was to inhibit the formation of the PC in a murine model mimicking surgical situation using ICDX and intraperitoneal (IP) prophylactic chemotherapy...
January 9, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28088224/clinical-analysis-of-krukenberg-tumours-in-patients-with-colorectal-cancer-a-review-of-57-cases
#5
K Y Xu, H Gao, Z J Lian, L Ding, M Li, J Gu
BACKGROUND: A Krukenberg tumour (KT) is defined as an ovarian metastasis from a gastrointestinal adenocarcinoma and suggests a terminal condition. This study aimed to identify the prognostic factors affecting the survival of patients with KTs of colorectal origin who receive cytoreductive surgery. METHODS: Medical records of patients who had received cytoreductive surgery and had been pathologically diagnosed with KT of colorectal origin in two centres were reviewed...
January 14, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28087510/effectiveness-of-flexible-sigmoidoscopy-screening-in-men-and-women-and-different-age-groups-pooled-analysis-of-randomised-trials
#6
Øyvind Holme, Robert E Schoen, Carlo Senore, Nereo Segnan, Geir Hoff, Magnus Løberg, Michael Bretthauer, Hans-Olov Adami, Mette Kalager
OBJECTIVE:  To compare the effectiveness of flexible sigmoidoscopy in screening for colorectal cancer by patient sex and age. DESIGN:  Pooled analysis of randomised trials (the US Prostate, Lung, Colorectal and Ovarian cancer screening trial (PLCO), the Italian Screening for Colon and Rectum trial (SCORE), and the Norwegian Colorectal Cancer Prevention trial (NORCCAP)). DATA SOURCES:  Aggregated data were pooled from each randomised trial on incidence of colorectal cancer and mortality stratified by sex, age at screening, and colon subsite (distal v proximal)...
January 13, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28075407/diagnostic-value-of-serum-angiogenesis-markers-in-ovarian-cancer-using-multiplex-immunoassay
#7
Agnieszka Horala, Agata Swiatly, Jan Matysiak, Paulina Banach, Ewa Nowak-Markwitz, Zenon J Kokot
As cancer development involves pathological vessel formation, 16 angiogenesis markers were evaluated as potential ovarian cancer (OC) biomarkers. Blood samples collected from 172 patients were divided based on histopathological result: OC (n = 38), borderline ovarian tumours (n = 6), non-malignant ovarian tumours (n = 62), healthy controls (n = 50) and 16 patients were excluded. Sixteen angiogenesis markers were measured using BioPlex Pro Human Cancer Biomarker Panel 1 immunoassay. Additionally, concentrations of cancer antigen 125 (CA125) and human epididymis protein 4 (HE4) were measured in patients with adnexal masses using electrochemiluminescence immunoassay...
January 10, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28073364/lack-of-mre11-rad50-nbs1-mrn-complex-detection-occurs-frequently-in-low-grade-epithelial-ovarian-cancer
#8
Simone Brandt, Eleftherios P Samartzis, Anne-Katrin Zimmermann, Daniel Fink, Holger Moch, Aurelia Noske, Konstantin J Dedes
BACKGROUND: BRCA1/2-deficient ovarian carcinomas are recognized as target for Poly (ADP-ribose) polymerase (PARP) inhibitors. BRCA1 and BRCA2 proteins are involved in homologous recombination repair of double-strand DNA breaks. The relevance of other homologous recombination repair proteins, e.g. MRE11, RAD50, NBS1 (MRN complex) in ovarian carcinomas is unclear. The objective of this study was to investigate the prevalence of lack of MRE11, RAD50, NBS1 protein detection in epithelial ovarian cancer (EOC)...
January 10, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28063166/cigarette-smoking-is-associated-with-adverse-survival-among-women-with-ovarian-cancer-results-from-a-pooled-analysis-of-19-studies
#9
Camilla Praestegaard, Allan Jensen, Signe M Jensen, Thor S S Nielsen, Penelope M Webb, Christina M Nagle, Anna DeFazio, Estrid Høgdall, Mary Anne Rossing, Jennifer A Doherty, Kristine G Wicklund, Marc T Goodman, Francesmary Modugno, Kirsten Moysich, Roberta B Ness, Robert Edwards, Keitaro Matsuo, Satoyo Hosono, Ellen L Goode, Stacey J Winham, Brooke L Fridley, Daniel W Cramer, Kathryn L Terry, Joellen M Schildkraut, Andrew Berchuck, Elisa V Bandera, Lisa E Paddock, Leon F Massuger, Nicolas Wentzensen, Paul Pharoah, Honglin Song, Alice Whittemore, Valerie McGuire, Weiva Sieh, Joseph Rothstein, Hoda Anton-Culver, Argyrios Ziogas, Usha Menon, Simon A Gayther, Susan J Ramus, Alexandra Gentry-Maharaj, Anna H Wu, Celeste L Pearce, Malcolm Pike, Alice W Lee, Rebecca Sutphen, Jenny Chang-Claude, Harvey A Risch, Susanne K Kjaer
Cigarette smoking is associated with an increased risk of developing mucinous ovarian tumours but whether it is associated with ovarian cancer survival overall or for the different histotypes is unestablished. Furthermore, it is unknown whether the association between cigarette smoking and survival differs according to strata of ovarian cancer stage at diagnosis. In a large pooled analysis, we evaluated the association between various measures of cigarette smoking and survival among women with epithelial ovarian cancer...
January 7, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28062021/endometrioid-carcinoma-of-the-ovary-outcomes-compared-to-serous-carcinoma-after-10-years-of-follow-up
#10
Geneviève Bouchard-Fortier, Tony Panzarella, Barry Rosen, William Chapman, Lilian T Gien
OBJECTIVES: The prognostic significance of endometrioid ovarian cancer is unclear. In this study we compared rates of overall survival (OS) and disease-free survival between patients with endometrioid and serous ovarian cancers using long-term follow-up data. METHODS: We included patients with endometrioid or serous ovarian cancers diagnosed at a single regional cancer centre between 1988 and 2006. Data on baseline and treatment characteristics were collected retrospectively...
January 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28054715/tubal-origin-of-ovarian-cancer-the-double-edged-sword-of-haemoglobin
#11
Shiou-Fu Lin, Emily Gerry, Ie-Ming Shih
Ovarian high-grade serous carcinoma (HGSC) is the most malignant neoplasm of the gynaecologic tract. While the origins of many human malignant neoplasms are clear, the origin of HGSC remains poorly understood. This lack of knowledge limits our understanding of its pathogenesis and compromises efforts devoted to develop better early detection tools and effective preventative intervention. The tubal origin of HGSC has been put forward since the initial report of dysplastic lesions (now known as serous tubal intraepithelial carcinomas, or STICs) that morphologically resemble HGSC in the fallopian tube...
January 5, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28052682/prognostic-significance-of-mapk-topo-ii%C3%AE-and-e-cadherin-immunoexpression-in-ovarian-serous-carcinomas
#12
D Sundov, B Petric Mise, I Mrklic, B Bacic, E Vrdoljak, S Tomis
Ovarian cancer accounts for only 3% of all cancers in women but is the most lethal gynaecologic malignancy. Low-grade and high-grade ovarian serous carcinomas (OSCs) represent two different diseases with different prognosis, approaches to detection and treatment. We assessed correlation between, MAPK, topoIIα, E-cadherin immunoexpression and clinicopathological features with overall survival (OS) in OSCs. The study included 81 patients undergoing surgery between January 1995 and December 2005.Formalin fixed paraffin embedded tumour sections were reviewed and examined immunohistochemically using antibodies against MAPK, topoIIα and E-cadherin...
January 5, 2017: Neoplasma
https://www.readbyqxmd.com/read/28050393/metronomic-chemotherapy-seems-prowess-to-battle-against-cancer-in-current-scenario
#13
Prema Muthusamy, Krishnan Vengadaragava Chary, G K Nalini
INTRODUCTION: Metronomic chemotherapy is an emerging method of chemotherapy. Metronomic 'lowdose' chemotherapy regimen induces tumour dormancy and reduces cancer resistance against anticancer drugs. It tends to improve overall success rate of cancer chemotherapy than conventional cyclical regimen. AIM: The aim of this systemic review was to provide comprehensive data of metronomic chemotherapy trials, regimens used and it's outcome in cancer therapeutics. MATERIALS AND METHODS: Fifty chemotherapy trial data were searched sequentially from web...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28049106/linking-uterine-serous-carcinoma-to-brca1-2-associated-cancer-syndrome-a-meta-analysis-and-case-report
#14
REVIEW
M M de Jonge, A L Mooyaart, M P G Vreeswijk, C D de Kroon, T van Wezel, C J van Asperen, V T H B M Smit, O M Dekkers, T Bosse
BACKGROUND: Uterine serous carcinoma (USC) shows greater morphological, clinical and molecular similarities to high-grade ovarian tubal serous carcinoma than to other types of endometrial cancer. As high-grade ovarian tubal serous carcinoma is known to be associated with BRCA1/2 pathogenic germline mutations (PMs), we aimed to explore whether USC is also a constituent of hereditary breast and ovarian cancer syndrome. METHODS: Pubmed, EMBASE and Web of Science were searched in July 2016 for articles assessing the association between USC and germline BRCA1/2-PMs...
December 31, 2016: European Journal of Cancer
https://www.readbyqxmd.com/read/28032817/the-brca1-ubiquitin-ligase-function-sets-a-new-trend-for-remodelling-in-dna-repair
#15
Ruth M Densham, Joanna R Morris
The protein product of the breast and ovarian cancer gene, BRCA1, is part of an obligate heterodimer with BARD1. Together these RING bearing proteins act as an E3 ubiquitin ligase. Several functions have been attributed to BRCA1 that contribute to genome integrity but which of these, if any, require this enzymatic function was unclear. Here we review recent studies clarifying the role of BRCA1 E3 ubiquitin ligase in DNA repair. Perhaps the most surprising finding is the narrow range of BRCA1 functions this activity relates to...
December 29, 2016: Nucleus
https://www.readbyqxmd.com/read/28028390/spectrum-of-childhood-and-adolescent-ovarian-tumors-in-india-25-years-experience-at-a-single-institution
#16
Ruchi Rathore, Sonal Sharma, Deepshikha Arora
BACKGROUND: Ovarian tumour in children and adolescent girls form an uncommon but important part of gynaecological malignancies. They account for 1% of all the childhood malignancies and 8% of all abdominal tumours in children. Since the ovarian cysts are thought to arise from mature follicles, these tumours were considered to be infrequent in the paediatric population. AIM: The rarity of this condition prompted us to conduct this study and share our experience on the incidence and clinicopathological features of different ovarian tumours in girls up to 20 years of age observed in last 25 years at a single tertiary care hospital...
December 15, 2016: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28028124/characterising-gemcitabine-effects-administered-as-single-agent-or-combined-with-carboplatin-in-mice-pancreatic-and-ovarian-cancer-xenografts-a-semi-mechanistic-pharmacokinetic-pharmacodynamics-tumour-growth-response-model
#17
Maria Garcia-Cremades, Celine Pitou, Philip W Iversen, Inaki F Troconiz
In this work, a semi-mechanistic tumour growth response model for gemcitabine in pancreatic (administered as single agent) and ovarian (given as single agent and in combination with carboplatin) cancer in mice was developed. Tumour profiles were obtained from nude mice, previously inoculated with KP4, ASPC1, MIA PACA2, PANC1 (pancreas), A2780 or SKOV3xluc (ovarian) cell lines, and then treated with different dosing schedules of gemcitabine and/or carboplatin. Data were fitted using the population approach with NONMEM 7...
December 27, 2016: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28025670/ovarian-borderline-tumors-in-the-2014-who-classification-evolving-concepts-and-diagnostic-criteria
#18
REVIEW
Steffen Hauptmann, Katrin Friedrich, Raymond Redline, Stefanie Avril
Borderline ovarian tumors (BOT) are uncommon but not rare epithelial ovarian neoplasms, intermediate between benign and malignant categories. Since BOT were first identified >40 years ago, they have inspired controversies disproportionate to their incidence. This review discusses diagnostic criteria for the histologic subtypes of BOT, highlighting areas of diagnostic challenges, ongoing controversies, and changes in terminology implemented by the recent 2014 WHO Classification of Tumours of the Female Genital Organs...
December 27, 2016: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28013349/pharmacology-and-toxicology-of-the-novel-investigational-agent-cantrixil-trx-e-002-1
#19
REVIEW
Muhammad Wasif Saif, Andrew Heaton, Kimberley Lilischkis, James Garner, David M Brown
PURPOSE: Recurrent, chemo-resistant ovarian cancer is thought to be due to a subgroup of slow-growing, drug-resistant cancer cells with stem-like properties and a high capacity for tumour repair. Cantrixil targets this sub-population of cells and is being developed as an intraperitoneal therapy to be used as first-line therapy in combination with carboplatin for epithelial ovarian cancer. The studies presented here justify further development. METHODS: A GLP dog CV study using a 4 × 4 Latin Square Crossover study was conducted using telemetric ECG recordings from dogs post IP administration to assess for cardiac abnormalities...
December 24, 2016: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28006819/better-resource-utilisation-and-quality-of-care-for-ovarian-cancer-patients-using-internet-based-pathology-review
#20
S Kommoss, F Kommoss, J Diebold, S Lax, D Schmidt, A Staebler, A du Bois, J Pfisterer
BACKGROUND: The current literature indicates that a considerable number of patients in ovarian carcinoma clinical trials have histopathological diagnoses in conflict with inclusion criteria. It has been suggested that specialised pathology review prior to randomisation should become the standard procedure in study protocols. We hypothesised that our new, internet-based high-throughput infrastructure would be capable of providing specialised pathology review within 10 working days (w.d...
December 22, 2016: British Journal of Cancer
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