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Journal of Ovarian Research

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https://www.readbyqxmd.com/read/29321056/mri-appearance-of-ovarian-serous-borderline-tumors-of-the-micropapillary-type-compared-to-that-of-typical-ovarian-serous-borderline-tumors-radiologic-pathologic-correlation
#1
Go Nakai, Takashi Yamada, Kazuhiro Yamamoto, Yoshinobu Hirose, Masahide Ohmichi, Yoshifumi Narumi
BACKGROUND: Serous borderline tumor (SBT) of the micropapillary type (SBT-MP) became one of the major pathological SBT diagnoses in addition to typical SBT, and was also defined as "non-invasive" low-gradeserous carcinoma according to the World Health Organization (WHO) classification in 2014. In this study, we investigated the MRI appearance of SBT-MP compared to that of typical SBT in order to identify specific imaging features of SBT-MP that correspond to pathological findings. METHODS: MR images of 6 histologically proven ovarian SBT-MP in four patients and 14 typical SBT in ten patients were reviewed retrospectively...
January 10, 2018: Journal of Ovarian Research
https://www.readbyqxmd.com/read/29321035/dhea-induced-ovarian-hyperfibrosis-is-mediated-by-tgf-%C3%AE-signaling-pathway
#2
Daojuan Wang, Wenqing Wang, Qiao Liang, Xuan He, Yanjie Xia, Shanmei Shen, Hongwei Wang, Qian Gao, Yong Wang
BACKGROUND: The polycystic ovary syndrome (PCOS) is a common metabolic and endocrine disorder with pathological mechanisms remain unclear. The following study investigates the ovarian hyperfibrosis forming via transforming growth factor-β (TGF-β) signaling pathway in Dehydroepiandrosterone (DHEA)- induced polycystic ovary syndrome (PCOS) rat model. We furthermore explored whether TGF-βRI inhibitor (SB431542) decreases ovarian fibrosis by counterbalancing the expression of fibrotic biomarkers...
January 10, 2018: Journal of Ovarian Research
https://www.readbyqxmd.com/read/29316947/diagnostic-utility-of-ct-in-differentiating-between-ruptured-ovarian-corpus-luteal-cyst-and-ruptured-ectopic-pregnancy-with-hemorrhage
#3
Xiaohong Liu, Litao Song, Jian Wang, Qin Liu, Yingna Liu, Xin Zhang
BACKGROUND: To evaluate the performance of computed tomography (CT) as a diagnostic aid to differentiate between ruptured ovarian corpus luteal cyst (ROCLC) and ruptured ectopic pregnancy with hemorrhage (REPWH). METHODS: A total of 36 patients treated at our hospitals for ROCLC and REPWH from June 2014 to August 2017 were included in this study. Based on the diagnosis, the study population was divided into ROCLC group (n = 21) and REPWH group (n = 15). CT scans were performed for all patients prior to treatment...
January 9, 2018: Journal of Ovarian Research
https://www.readbyqxmd.com/read/29304868/further-characterization-of-adult-sheep-ovarian-stem-cells-and-their-involvement-in-neo-oogenesis-and-follicle-assembly
#4
Hiren Patel, Deepa Bhartiya, Seema Parte
BACKGROUND: Stem cells in the ovary comprise of two distinct populations including very small embryonic-like stem cells (VSELs) and slightly bigger progenitors termed ovarian stem cells (OSCs). They are lodged in ovary surface epithelium (OSE) and are expected to undergo neo-oogenesis and primordial follicle (PF) assembly in adult ovaries. The ovarian stem cells express follicle stimulating hormone (FSH) receptors and are directly activated by FSH resulting in formation of germ cell nests (GCN) in vitro...
January 5, 2018: Journal of Ovarian Research
https://www.readbyqxmd.com/read/29304854/suitability-assessment-of-baseline-concentration-of-mmp3-timp3-he4-and-ca125-in-the-serum-of-patients-with-ovarian-cancer
#5
Aneta Cymbaluk-Płoska, Anita Chudecka-Głaz, Ewa Pius-Sadowska, Bogusław Machaliński, Janusz Menkiszak, Agnieszka Sompolska-Rzechuła
BACKGROUND: MMP and TIMP play an important role in the degradation of extracellular matrix components which are essential for tumor growth, invasion and metastasis. Aim of this research was to assess MMP3 and TIMP3 as prognostic factors among patients with ovarian cancer. RESULTS: It was found that high levels of output MMP3 correlated with shortened overall survival time of patients by 9.7 months. In addition, it has been shown that high concentrations of output MMP3 were significantly associated with a shorter disease free time in median concentrations implemented p = 0...
January 5, 2018: Journal of Ovarian Research
https://www.readbyqxmd.com/read/29304839/new-national-outcome-data-on-fresh-versus-cryopreserved-donor-oocytes
#6
Vitaly A Kushnir, Sarah K Darmon, David H Barad, Norbert Gleicher
BACKGROUND: Improvements in oocyte cryopreservation techniques and establishment of cryopreserved donor oocyte banks have led to improved access to and lower cost of donor oocytes, upending the traditional practice of fresh oocyte donation. The objective of this study was to examine national trends in utilization and live birth rates with fresh versus cryopreserved donor oocytes. METHODS: A retrospective analysis of 2013 through 2015 aggregate U.S. national data reported by the Society for Assisted Reproductive Technology which included 30,160 IVF cycles with either fresh or cryopreserved donor oocytes was performed...
January 5, 2018: Journal of Ovarian Research
https://www.readbyqxmd.com/read/29304838/a-protocol-to-isolate-and-qualify-purified-human-preantral-follicles-in-cases-of-acute-leukemia-for-future-clinical-applications
#7
Elodie Mouloungui, Tristan Zver, Christophe Roux, Clotilde Amiot
BACKGROUND: Autotransplantation of cryopreserved ovarian cortex can be associated with a risk of cancer cell reseeding. This issue could be eliminated by grafting isolated preantral follicles. Collagenase NB6 is an enzyme produced under good manufacturing practices (GMP) in compliance with requirements for tissue engineering and transplantation in humans and thus can be used to isolate preantral follicles from ovarian tissue in the framework of further clinical applications. Multicolor flow cytometry is an effective tool to evaluate the potential contamination of follicular suspensions by leukemic cells...
January 5, 2018: Journal of Ovarian Research
https://www.readbyqxmd.com/read/29282125/food-restriction-during-pregnancy-and-female-offspring-fertility-adverse-effects-of-reprogrammed-reproductive-lifespan
#8
Abdel Halim Harrath, Abdulkarem Alrezaki, Lamjed Mansour, Saleh H Alwasel, Stefano Palomba
BACKGROUND: Food restriction during pregnancy can influence the health of the offspring during the adulthood. The aim of the present study was to examine the effect of maternal food restriction (MFR) on the reproductive performance in female rat offspring from the first (FR1) and second (FR2) generations. METHODS: Adult virgin Wistar female rats were given free access to tap water and were fed ad libitum on standard rodent chow, were mated with virgin adult males, and then were randomly divided into two groups: controls (that was fed ad libitum ) and food-restricted group (FR, that was given only 50% of ad libitum food throughout gestation)...
December 28, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/29258623/dynamic-modeling-of-folliculogenesis-signaling-pathways-in-the-presence-of-mirnas-expression
#9
Abolfazl Bahrami, Seyed Reza Miraie-Ashtiani, Mostafa Sadeghi, Ali Najafi, Reza Ranjbar
BACKGROUND: TEK signaling plays a very important role in folliculogenesis. It activates Ras/ERK/MYC, PI3K/AKT/mTORC1 and ovarian steroidogenesis activation pathways. These are the main pathways for cell growth, differentiation, migration, adhesion, proliferation, survival and protein synthesis. RESULTS: TEK signaling on each of the two important pathways where levels of pERK, pMYC, pAkt, pMCL1 and pEIF4EBP1 are increased in dominant follicles and pMYC is decreased in dominant follicles...
December 19, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/29132396/circulating-cell-free-dna-and-circulating-tumor-cells-the-liquid-biopsies-in-ovarian-cancer
#10
REVIEW
Xianliang Cheng, Lei Zhang, Yajuan Chen, Chen Qing
Limited understanding of ovarian cancer (OC) genome portrait has hindered the therapeutic advances. The serial monitoring of tumor genotypes is becoming increasingly attainable with circulating cell-free DNA (cf-DNA) and circulating tumor cells (CTCs) emerging as "liquid biopsies". They represent non-invasive biomarkers and are viable, as they can be isolated from human plasma, serum and other body fluids. Molecular characterization of circulating tumor DNA (ct-DNA) and CTCs offer unique potentials to better understand the biology of metastasis and resistance to therapies...
November 13, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/29122003/docosahexaenoic-acid-mechanisms-of-action-on-the-bovine-oocyte-cumulus-complex
#11
Sebastien Elis, Mouhamad Oseikria, Anais Vitorino Carvalho, Priscila Silvana Bertevello, Emilie Corbin, Ana-Paula Teixeira-Gomes, Jérôme Lecardonnel, Catherine Archilla, Véronique Duranthon, Valérie Labas, Svetlana Uzbekova
BACKGROUND: Supplementation of bovine oocyte-cumulus complexes during in vitro maturation (IVM) with 1 μM of docosahexaenoic acid (DHA), C22:6 n-3 polyunsaturated fatty acid, was reported to improve in vitro embryo development. The objective of this paper was to decipher the mechanisms of DHA action. RESULTS: Transcriptomic analysis of 1 μM DHA-treated and control cumulus cells after 4 h IVM showed no significant difference in gene expression. MALDI-TOF mass spectrometry analysis of lipid profiles in DHA-treated and control oocytes and cumulus cells after IVM showed variations of only 3 out of 700 molecular species in oocytes and 7 out of 698 species in cumulus cells (p < 0...
November 9, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/29100532/a-comprehensive-overview-of-exosomes-in-ovarian-cancer-emerging-biomarkers-and-therapeutic-strategies
#12
REVIEW
Lin Cheng, Shuying Wu, Kun Zhang, Yun'an Qing, Tianmin Xu
Exosomes are nanoparticles(40-100 nm) secreted by most cells in the body, which can be isolated from several types of extracellular fluids. It has been shown that exosomes play a key role in intercellular communication and in transportation of genetic information. Emerging evidence shows that exosomes are mediators of metastasis in tumour cells, stromal cells and the extracellular matrix component through the shuttling of cargo, such as proteins, lipids, RNAs, double-stranded DNAs, non-transcribed RNAs, and microRNAs...
November 3, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/29078793/prediction-of-clinical-response-to-drugs-in-ovarian-cancer-using-the-chemotherapy-resistance-test-ctr-test
#13
Frank Christian Kischkel, Carina Meyer, Julia Eich, Mani Nassir, Monika Mentze, Ioana Braicu, Annette Kopp-Schneider, Jalid Sehouli
BACKGROUND: In order to validate if the test result of the Chemotherapy Resistance Test (CTR-Test) is able to predict the resistances or sensitivities of tumors in ovarian cancer patients to drugs, the CTR-Test result and the corresponding clinical response of individual patients were correlated retrospectively. Results were compared to previous recorded correlations. METHODS: The CTR-Test was performed on tumor samples from 52 ovarian cancer patients for specific chemotherapeutic drugs...
October 27, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/29061149/a-modified-and-tailored-human-follicle-isolation-procedure-improves-follicle-recovery-and-survival
#14
Maria Costanza Chiti, Marie-Madeleine Dolmans, Maria Hobeika, Alice Cernogoraz, Jacques Donnez, Christiani Andrade Amorim
BACKGROUND: Ovarian tissue cryopreservation followed by transplantation after cancer remission is the most commonly applied fertility restoration approach in very young girls and women who require immediate cancer therapy. However, clinicians strongly advise against reimplantation of one's own ovarian tissue when there is a high risk of recurrence after grafting. For these patients, development of an alternative strategy, namely a transplantable artificial ovary, offers future hope of conceiving...
October 23, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/29037231/optimal-parameters-for-determining-the-lh-surge-in-natural-cycle-frozen-thawed-embryo-transfers
#15
Mohamad Irani, Alex Robles, Vinay Gunnala, David Reichman, Zev Rosenwaks
BACKGROUND: There is no consensus on the exact parameters that define the LH surge for natural cycle frozen-thawed embryo transfers (NC-FET). Accurately determining the LH surge would affect the timing, and subsequently the success rates, of embryo transfer. Therefore, the aim of this study was to delineate the optimal levels and relationship for luteinizing hormone (LH) and estradiol in an effort to optimally identify the LH surge in NC-FET. METHODS: It is a retrospective study that was performed in an academic medical center...
October 16, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/29021002/collagen-triple-helix-repeat-containing-1-cthrc1-activates-integrin-%C3%AE-3-fak-signaling-and-promotes-metastasis-in-ovarian-cancer
#16
Biying Guo, Huan Yan, Luying Li, Kemin Yin, Fang Ji, Shu Zhang
BACKGROUND: Metastasis is the major cause of morbidity and mortality in patients with epithelial ovarian cancer (EOC), however the mechanisms that underline this process are poorly understood. Collagen triple helix repeat containing-1 (CTHRC1) is a 28-kDa secreted protein reported to be involved in vascular remodeling, bone formation and morphogenesis. This study aimed to investigate the role of CTHRC1 in promoting the metastasis of EOC and to elucidate the underlying molecular mechanisms...
October 11, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/28978329/macrophage-colony-stimulating-factor-m-csf-is-an-intermediate-in-the-process-of-luteinizing-hormone-induced-decrease-in-natriuretic-peptide-receptor-2-npr2-and-resumption-of-oocyte-meiosis
#17
Wenchao Sun, Chang Liu, Ying Feng, Guangchao Zhuo, Wenjing Zhou, Xiaoyang Fei, Zhifen Zhang
BACKGROUND: Luteinizing hormone (LH) regulation of the ligand, natriuretic peptide precursor type C, and its receptor, natriuretic peptide receptor 2 (NPR2), is critical for oocyte maturation; however, the mechanism is not fully understood. Macrophage colony-stimulating factor (M-CSF) has recently been shown to be involved in oocyte maturation and ovulation. In the present study we determined whether or not M-CSF plays a role in the intermediate signal that mediates LH regulation of NPR2 in resumption of oocyte meiosis...
October 4, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/28974236/endometriosis-is-the-independent-prognostic-factor-for-survival-in-chinese-patients-with-epithelial-ovarian-carcinoma
#18
Tong Ren, Shu Wang, Jian Sun, Ji-Min Qu, Yang Xiang, Keng Shen, Jing He Lang
BACKGROUND: Clinico-pathological characteristics and possible prognostic factors among women with epithelial ovarian carcinoma (EOC) with or without concurrent endometriosis were explored. METHOD: We retrospectively identified 304 patients with EOC treated primarily at Peking Union Medical College Hospital with median follow-up time of 60 months. RESULTS: Of 304 patients with EOC, concurrent endometriosis was identified in 69 (22.7%). The patients with concurrent endometriosis were younger and more probably post-menopausal at onset, were less likely to have abdominal distension, with significantly lower level of pre-surgery serum Ca125 and less possibility of having the history of tubal ligation...
October 3, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/28954627/increased-rhamm-expression-relates-to-ovarian-cancer-progression
#19
Stephanie T Buttermore, Mitchel S Hoffman, Ambuj Kumar, Anne Champeaux, Santo V Nicosia, Patricia A Kruk
BACKGROUND: Elevated hyaluronan-mediated motility receptor (RHAMM) has been reported to contribute to disease progression, aggressive phenotype and poor prognosis in multiple cancer types, however, RHAMM's role in ovarian cancer (OC) has not been elucidated. Therefore, we sought to evaluate the role for RHAMM in epithelial OC. RESULTS: Despite little to no expression in normal ovarian surface epithelium, western immunoblotting, immunohistochemical staining and enzyme linked immunosorbent assay showed elevated RHAMM levels in clinical tissue sections, omental metastasis and urine specimens of serous OC patients, as well as in cell lysates...
September 27, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/28950890/the-value-of-dce-mri-in-assessing-histopathological-and-molecular-biological-features-in-induced-rat-epithelial-ovarian-carcinomas
#20
Su Juan Yuan, Tian Kui Qiao, Jin Wei Qiang, Song Qi Cai, Ruo Kun Li
BACKGROUND: To investigate dynamic contrast enhanced magnetic resonance imaging (DCE-MRI) for assessing histopathological and molecular biological features in induced rat epithelial ovarian carcinomas (EOCs). METHODS: 7,12-dimethylbenz[A]anthracene (DMBA) was applied to induce EOCs in situ in 46 SD rats. Conventional MRI and DCE-MRI were performed to evaluate the morphology and perfusion features of the tumors, including the time-signal intensity curve (TIC), volume transfer constant (K(trans)), rate constant (Kep), extravascular extracellular space volume ratio (Ve) and initial area under the curve (IAUC)...
September 26, 2017: Journal of Ovarian Research
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