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Ovarian reserve

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https://www.readbyqxmd.com/read/29159934/ovarian-cancer-early-detection-by-circulating-ca125-in-the-context-of-anti-ca125-autoantibody-levels-results-from-the-epic-cohort
#1
Renée T Fortner, Helena Schock, Charlotte Le Cornet, Anika Hüsing, Allison F Vitonis, Theron S Johnson, Raina N Fichorova, Titilayo Fashemi, Hidemi S Yamamoto, Anne Tjønneland, Louise Hansen, Kim Overvad, Marie-Christine Boutron-Ruault, Marina Kvaskoff, Gianluca Severi, Heiner Boeing, Antonia Trichopoulou, Eleni-Maria Papatesta, Carlo La Vecchia, Domenico Palli, Sabina Sieri, Rosario Tumino, Carlotta Sacerdote, Amalia Mattiello, N Charlotte Onland-Moret, Petra H Peeters, H B As Bueno-de-Mesquita, Elisabete Weiderpass, J Ramón Quirós, Eric J Duell, Maria-Jose Sánchez, Carmen Navarro, Eva Ardanaz, Nerea Larrañaga, Björn Nodin, Karin Jirström, Annika Idahl, Eva Lundin, Kay-Tee Khaw, Ruth C Travis, Marc Gunter, Mattias Johansson, Laure Dossus, Melissa A Merritt, Elio Riboli, Kathryn L Terry, Daniel W Cramer, Rudolf Kaaks
CA125 is the best ovarian cancer early detection marker to date; however, sensitivity is limited and complementary markers are required to improve discrimination between ovarian cancer cases and non-cases. Anti-CA125 autoantibodies are observed in circulation. Our objective was to evaluate whether these antibodies (1) can serve as early detection markers, providing evidence of an immune response to a developing tumor, and (2) modify the discriminatory capacity of CA125 by either masking CA125 levels (resulting in lower discrimination) or acting synergistically to improve discrimination between cases and non-cases...
November 21, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29152737/molecular-mechanisms-of-drug-resistance-in-ovarian-cancer
#2
REVIEW
Leyla Norouzi-Barough, Mohammad Reza Sarookhani, Mohammadreza Sharifi, Sahar Moghbelinejad, Saranaz Jangjoo, Rasoul Salehi
Ovarian cancer is the most lethal malignancy among the gynecological cancers, with a 5-year survival rate, mainly due to being diagnosed at advanced stages, recurrence and resistance to the current chemotherapeutic agents. Drug resistance is a complex phenomenon and the number of known involved genes and cross-talks between signaling pathways in this process is growing rapidly. Thus, discovering and understanding the underlying molecular mechanisms involved in chemo-resistance are crucial for management of treatment and identifying novel and effective drug targets as well as drug discovery to improve therapeutic outcomes...
November 19, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150924/comprehensive-profiling-of-lysine-acetylome-in-baculovirus-infected-silkworm-bombyx-mori-cells
#3
Dongbing Hu, Shengjie Xue, Cui Zhao, Ming Wei, Huihui Yan, Yanping Quan, Wei Yu
Bombyx mori is one of the key lepidopteran model species, and is economically important for silk production and proteinaceous drug expression. Baculovirus and insect host are important natural biological models for studying host-pathogen interactions. The impact of Bombyx mori nucleopolyhedrovirus (BmNPV) infection on the proteome and acetylome of Bombyx mori ovarian (BmN) cells were explored to facilitate a better understanding of infection-driven interactions between BmNPV and host in vitro. The proteome and acetylome were profiled through 6-plex Tandem mass tag (TMT) labelling-based quantitative proteomics...
November 18, 2017: Proteomics
https://www.readbyqxmd.com/read/29148539/extrauterine-high-grade-serous-carcinomas-with-bilateral-adnexal-involvement-as-the-only-two-disease-sites-are-clonal-based-on-tp53-sequencing-results-implications-for-biology-classification-and-staging
#4
Naveena Singh, Asma Faruqi, Friedrich Kommoss, W Glenn McCluggage, Giorgia Trevisan, Janine Senz, Amy Lum, C Blake Gilks, Michael Anglesio
A previous multicenter study of 67 cases of Stage I/II tubo-ovarian high-grade serous carcinoma with complete tubal sampling identified 7 cases in which there were only two disease sites, comprising tumor involving opposite adnexa with no extra-adnexal involvement. This study aimed to determine whether such low-stage extrauterine high-grade serous carcinomas with only two sites of involvement, located on opposite adnexa, have identical or different TP53 mutations in order to investigate their clonal relationship...
November 17, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29143969/the-molecular-basis-of-cytotoxicity-of-%C3%AE-spinasterol-from-ganoderma-resinaceum-induction-of-apoptosis-and-overexpression-of-p53-in-breast-and-ovarian-cancer-cell-lines
#5
Nada K Sedky, Zaynab El Gammal, Amir E Wahba, Eman Mosad, Zahraa Y Waly, Amira Ali El-Fallal, Reem K Arafa, Nagwa El-Badri
OBJECTIVES: Despite advances in therapy of breast and ovarian cancers, they still remain among the most imperative causes of cancer death in women. The first can be considered one of the most widespread diseases among females, while the latter is more lethal and needs prompt treatment. Thus, the research field can still benefit from discovery of new compounds that can be of potential use in management of these grave illnesses. We hereby aimed to assess the antitumor activity of the phytosterol α-spinasterol isolated from Ganoderma resinaceum mushroom on human breast cancer cell lines (MCF-7, MDA-MB-231), as well as, on human ovarian cancer cell line (SKOV-3)...
November 16, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29143944/one-thousand-seventy-eight-autologous-ivf-cycles-in-women-45%C3%A2-years-and-older-the-largest-single-center-cohort-to-date
#6
Vinay Gunnala, Mohamad Irani, Alexis Melnick, Zev Rosenwaks, Steven Spandorfer
PURPOSE: The purpose of this study was to determine IVF outcomes in women 45 years and older using autologous oocytes. METHODS: This is a retrospective cohort study reviewing all IVF cycles in women ≥ 45 years old from January 1995 to June 2015 that were conducted at one academic medical center. One thousand seventy-eight fresh, autologous IVF cycles met inclusion criteria. PGD/S, natural IVF, and donor egg cycles were excluded. Outcomes were analyzed for the different age groups (age 45, n = 773; age 46, n = 221; age 47, n = 57; age 48, n = 22; age 49, n = 5)...
November 16, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29143477/gastric-venous-congestion-and-bleeding-in-association-with-total-pancreatectomy
#7
Akimasa Nakao, Suguru Yamada, Tsutomu Fujii, Haruyoshi Tanaka, Kenji Oshima, Yukiko Oshima, Kiyotsugu Iede, Hironobu Kobayashi, Yasunori Kimura, Yasuhiro Kodera
BACKGROUND: Gastric venous congestion and bleeding in association with total pancreatectomy (TP) were evaluated. METHODS: Thirty-eight patients of TP were retrospectively analyzed. TP was classified as TP with distal gastrectomy (TPDG), pylorus-preserving TP (PPTP), subtotal stomach-preserving TP (SSPTP), and TP with segmental duodenectomy (TPSD). RESULTS: Portal vein or superior mesenteric vein resection and reconstruction was performed in 24 patients (62...
November 16, 2017: Journal of Hepato-biliary-pancreatic Sciences
https://www.readbyqxmd.com/read/29143360/identification-of-a-pyridine-derivative-inducing-senescence-in-ovarian-cancer-cell-lines-via-p21-activation
#8
Dongsheng Shang, Yanfang Wu, Ya Ding, Ziwen Lu, Yanting Shen, Feifei Zhu, Hanqing Liu, Chunyin Zhu, Zhigang Tu
Cellular senescence is a state of irreversible cell growth arrest. Increasing evidence suggests that cellular senescence contribute to tumor suppression in vivo. However, only a few anti-cancer drugs have been discovered to induce cellular senescence. Searching for new compounds which can inhibit cancer cell growth by inducing senescence is becoming one of the most attractive research fields. To test the effects of candidate compounds on cancer cell growth, cell proliferation assays, senescence associated β-galactosidase (SA-β-gal) staining, and flow cytometry assay were performed...
November 16, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29131373/differentially-expressed-mirna-210-during-follicular-luteal-transition-regulates-pre-ovulatory-granulosa-cell-function-targeting-hras-and-efna3
#9
Astha Shukla, Sunita Dahiya, Suneel Kumar Onteru, Dheer Singh
Ovarian folliculogenesis, ovulation and luteinization are an important prerequisite for fertility performance in mammals. Spatial and temporal key factors and proteins for their regulation are well known. Recent advancement in the field of molecular biology led to the discovery of another class of gene regulators, microRNA (miRNA). Previous studies on profiling of miRNA in buffalo ovaries revealed that miRNA-210 (miR-210) is differently expressed in follicular-luteal transition. Therefore, the present study was planned to ascertain the role of miR-210 in buffalo granulosa cells...
November 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29130517/mesenchymal-splice-isoform-of-cd44-cd44s-promotes-emt-invasion-and-imparts-stem-like-properties-to-ovarian-cancer-cells
#10
Rahul Bhattacharya, Tulika Mitra, Susri Ray Chaudhuri, Sib Sankar Roy
Increased metastasis and a precipitous recurrence contribute to the lethality of ovarian cancer (OC). Several molecular mechanisms including aberrant-splicing have been closely associated with the extent of cancer progression. Numerous gene transcripts are differentially spliced in cancer cells, CD44 being one of them. CD44 splice isoforms contribute to the aggressiveness and gain of stem-like properties in different cancer types, but their role in ovarian cancer remains to be elucidated. We observed augmented CD44 levels in human ovarian cancer patient samples correlated with enhanced expression of the mesenchymal spliced variant CD44s (standard) and a concurrent decrease in the epithelial variants (CD44v)...
November 11, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29129796/comprehensive-profiling-of-prostaglandins-in-human-ovarian-follicular-fluid-using-mass-spectrometry
#11
Bruce Pier, Johnathan W Edmonds, Landon Wilson, Alireza Arabshahi, Ray Moore, G Wright Bates, Jeevan K Prasain, Michael A Miller
Prostaglandins are formed by enzymatic and non-enzymatic mechanisms. They have been detected in human ovarian follicular fluid (HFF), a medium rich in growth factors and nutrients important for oocyte growth and fertility. However, the comprehensive identification of HFF prostaglandins has not been addressed. Here we use hybrid triple quadrupole time-of-flight and triple quadrupole mass spectrometers to comprehensively analyze prostaglandins in HFF. We identified PGE1, PGE2, PGF2α, and other prostaglandins synthesized via prostaglandin-endoperoxide synthase (i...
November 9, 2017: Prostaglandins & Other Lipid Mediators
https://www.readbyqxmd.com/read/29126090/the-vanishing-follicle-in-women-with-low-number-of-developing-follicles-during-assisted-reproduction
#12
Johnny S Younis, Shiran Yakovi, Ido Izhaki, Sami Haddad, Moshe Ben-Ami
OBJECTIVE: To investigate the occurrence of the "vanishing follicle" phenomenon in women with low number of developing follicles in assisted reproduction. STUDY DESIGN: Women with ≤ 6 follicles on the day of hCG administration with ≥ 14mm diameter were prospectively studied. Primary outcome measures were disappearance of ≥14mm and all-diameter follicles on the day of oocyte pick-up compared to the day of hCG administration. RESULTS: Among the 120 women recruited, 95 were found eligible and completed the study...
November 3, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/29125883/a-genetic-variant-of-mir-335-binding-site-in-the-erbb4-3-utr-is-associated-with-prognosis-of-ovary-cancer
#13
Ping Wei, Ling Li, Zhihu Zhang, Wei Zhang, Ming Liu, Xiugui Sheng
BACKGROUND: Ovarian cancer is one of the leading gynecologic malignancies globally, the 5-year survival rate for patients with advanced stage ovarian cancer is very low. Our objective was to test the hypothesis that miR-335 was associated with the survival of patients with ovarian cancer. METHOD: Bioinformatics tools and luciferase report assay were used to select the target of miR-335, and real-time PCR was used to detect the expression of miR-335 and ERBB4 in different genotype groups...
November 10, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29121350/individualized-fsh-dosing-based-on-ovarian-reserve-testing-in-women-starting-ivf-icsi-a-multicentre-trial-and-cost-effectiveness-analysis
#14
Theodora C van Tilborg, Simone C Oudshoorn, Marinus J C Eijkemans, Monique H Mochtar, Ron J T van Golde, Annemieke Hoek, Walter K H Kuchenbecker, Kathrin Fleischer, Jan Peter de Bruin, Henk Groen, Madelon van Wely, Cornelis B Lambalk, Joop S E Laven, Ben Willem J Mol, Frank J M Broekmans, Helen L Torrance
STUDY QUESTION: Is there a difference in live birth rate and/or cost-effectiveness between antral follicle count (AFC)-based individualized FSH dosing or standard FSH dosing in women starting IVF or ICSI treatment? SUMMARY ANSWER: In women initiating IVF/ICSI, AFC-based individualized FSH dosing does not improve live birth rates or reduce costs as compared to a standard FSH dose. WHAT IS KNOWN ALREADY: In IVF or ICSI, ovarian reserve testing is often used to adjust the FSH dose in order to normalize ovarian response and optimize live birth rates...
November 7, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29121326/individualized-versus-standard-fsh-dosing-in-women-starting-ivf-icsi-an-rct-part-1-the-predicted-poor-responder
#15
Theodora C van Tilborg, Helen L Torrance, Simone C Oudshoorn, Marinus J C Eijkemans, Carolien A M Koks, Harold R Verhoeve, Annemiek W Nap, Gabrielle J Scheffer, A Petra Manger, Benedictus C Schoot, Alexander V Sluijmer, Arie Verhoeff, Henk Groen, Joop S E Laven, Ben Willem J Mol, Frank J M Broekmans
STUDY QUESTION: Does an increased FSH dose result in higher cumulative live birth rates in women with a predicted poor ovarian response, apparent from a low antral follicle count (AFC), scheduled for IVF or ICSI? SUMMARY ANSWER: In women with a predicted poor ovarian response (AFC < 11) undergoing IVF/ICSI, an increased FSH dose (225/450 IU/day) does not improve cumulative live birth rates as compared to a standard dose (150 IU/day). WHAT IS KNOWN ALREADY: In women scheduled for IVF/ICSI, an ovarian reserve test (ORT) can predict ovarian response to stimulation...
November 7, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29121269/individualized-versus-standard-fsh-dosing-in-women-starting-ivf-icsi-an-rct-part-2-the-predicted-hyper-responder
#16
Simone C Oudshoorn, Theodora C van Tilborg, Marinus J C Eijkemans, G Jur E Oosterhuis, Jaap Friederich, Marcel H A van Hooff, Evert J P van Santbrink, Egbert A Brinkhuis, Jesper M J Smeenk, Janet Kwee, Corry H de Koning, Henk Groen, Cornelis B Lambalk, Ben Willem J Mol, Frank J M Broekmans, Helen L Torrance
STUDY QUESTION: Does a reduced FSH dose in women with a predicted hyper response, apparent from a high antral follicle count (AFC), who are scheduled for IVF/ICSI lead to a different outcome with respect to cumulative live birth rate and safety? SUMMARY ANSWER: Although in women with a predicted hyper response (AFC > 15) undergoing IVF/ICSI a reduced FSH dose (100 IU per day) results in similar cumulative live birth rates and a lower occurrence of any grade of ovarian hyperstimulation syndrome (OHSS) as compared to a standard dose (150 IU/day), a higher first cycle cancellation rate and similar severe OHSS rate were observed...
November 7, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29113831/the-effect-of-ovarian-reserve-and-receptor-signalling-on-granulosa-cell-apoptosis-during-human-follicle-development
#17
Sheena L P Regan, Phil G Knight, John L Yovich, James D Stanger, Yee Leung, Frank Arfuso, Ghanim Almahbobi, Arun Dharmarajan
The poor oocyte quality in older women has previously been linked to the depletion of the ovarian reserve of primordial follicles and an increase in granulosal apoptosis. Granulosa cells were collected from 198 follicles and individually analysed by flow cytometry. In the young IVF patients, the level of apoptosis was inversely proportional to the expression of bone morphogenetic protein (BMPR1B) and follicle stimulating hormone (FSH) receptors. Conversely, in the older patients this relationship became dysregulated...
November 4, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/29113015/subfamily-dependent-alternative-reproductive-strategies-in-worker-honey-bees
#18
Boris Yagound, Michael Duncan, Nadine C Chapman, Benjamin P Oldroyd
Functional worker sterility is the defining feature of insect societies. Yet, workers are sometimes found reproducing in their own or foreign colonies. The proximate mechanisms underlying these alternative reproductive phenotypes are key to understanding how reproductive altruism and selfishness are balanced in eusocial insects. In this study we show that in honey bee (Apis mellifera) colonies the social environment of a worker, i.e. the presence and relatedness of the queens in a worker's natal colony and in surrounding colonies, significantly influences her fertility and drifting behaviour...
November 7, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/29106744/germ-cell-tumor-growth-patterns-originating-from-clear-cell-carcinomas-of-the-ovary-and-endometrium-a-comparative-immunohistochemical-study-favouring-their-origin-from-somatic-stem-cells
#19
F F Nogales, J Prat, M Schuldt, N Cruz-Viruel, B Kau, E D'Angelo, X Matias-Guiu, A Vidal, W G McCluggage, J W Oosterhuis
AIMS: To report a series of 11 ovarian and one endometrial neoplasm in elderly patients with mixed clear cell tumour and germ cell tumour (GCT) components, to compare their immunohistochemical and demonstrate a putative stem cell population. METHODS AND RESULTS: The clear cell tumours included 11 clear cell carcinomas (CCC) and 1 borderline clear cell tumour, while the GCT always included glandular yolk sac tumour (YST). In 4 cases, there were also foci of teratoma with immature neuroepithelial and endodermal tissues, and undifferentiated areas showing true embryoids...
November 6, 2017: Histopathology
https://www.readbyqxmd.com/read/29106741/development-and-characterization-of-a-handheld-hyperspectral-raman-imaging-probe-system-for-molecular-characterization-of-tissue-on-mesoscopic-scales
#20
Karl St-Arnaud, Kelly Aubertin, Mathias Strupler, Wendy-Julie Madore, Andrée-Anne Grosset, Kevin Petrecca, Dominique Trudel, Frédéric Leblond
PURPOSE: Raman spectroscopy is a promising cancer detection technique for surgical guidance applications. It can provide quantitative information relating to global tissue properties associated with structural, metabolic, immunological and genetic biochemical phenomena in terms of molecular species including amino acids, lipids, proteins, and nucleic acid (DNA). To date in vivo Raman spectroscopy systems mostly included probes and biopsy needles typically limited to single-point tissue interrogation over a scale between 100 and 500 microns...
November 6, 2017: Medical Physics
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