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https://www.readbyqxmd.com/read/29786043/risk-factors-for-recurrence-of-ovarian-endometriosis-in-chinese-patients-aged-45-and-over
#1
Zheng-Xing He, Ting-Ting Sun, Shu Wang, Hong-Hui Shi, Qing-Bo Fan, Lan Zhu, Jin-Hua Leng, Da-Wei Sun, Jian Sun, Jing-He Lang
Background: When considering the issue of recurrence, perimenopausal women may have more dilemma during management comparing with young women, for example, whether to retain the uterus and ovary during surgery, whether it is necessary to add adjuvant medicine treatment after operation, and there is no evidence for reference about using of gonadotropin-releasing hormone agonist. This study aimed to study the risk factors for the recurrence of ovarian endometriosis (EM) in patients aged 45 and over...
June 5, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/29785700/the-association-between-circulating-irisin-levels-and-different-phenotypes-of-polycystic-ovary-syndrome
#2
L Zhang, X Fang, L Li, R Liu, C Zhang, H Liu, M Tan, G Yang
PURPOSE: The diagnosis of polycystic ovary syndrome (PCOS) is based on a combination of various clinical phenotypes in each patient. However, insulin resistance (IR) and dysmetabolism are not included in the diagnostic criteria of PCOS. Therefore, the definition of PCOS is controversial. The objective of this study is to investigate whether some PCOS phenotypes can be predicted by a circulating biomarker related to IR and metabolic dysfunction in PCOS women. METHODS: One hundred and seventeen women with PCOS and 95 healthy women were recruited for this study...
May 21, 2018: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/29785627/chemical-communication-and-reproduction-partitioning-in-social-wasps
#3
REVIEW
Francesca Romana Dani, Stefano Turillazzi
Social wasps encompass species displaying diverse social organization regarding colony cycle, nest foundation, caste differences (from none to significant dimorphism) and number of reproductive queens. Current phylogenetic data suggests that sociality occured independently in the subfamily Stenogastrinae and in the Polistinae+Vespinae clade. In most species, including those with the simplest social organization, colony reproduction is monopolised by a single or few females. Since their nest mates can also develop ovaries and lay eggs, dominant females must somehow inhibit them from reproducing...
May 22, 2018: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/29785550/does-tumor-grade-influence-the-rate-of-lymph-node-metastasis-in-apparent-early-stage-ovarian-cancer
#4
Dimitrios Nasioudis, Spyridon A Mastroyannis, Emily M Ko, Nawar A Latif
PURPOSE: To evaluate the prevalence of regional lymph node (LN) metastasis in patients with non-clear cell epithelial ovarian cancer apparently confined to the ovary, stratified by tumor grade. METHODS: The National Cancer Institute's Surveillance, Epidemiology, and End Results (SEER) database was accessed (1988-2014). We identified patients with epithelial ovarian carcinoma of serous, endometrioid and mucinous histology apparently confined to the ovary who underwent extensive lymphadenectomy (defined as at least 20 lymph nodes removed)...
May 21, 2018: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29784859/igg-responses-to-the-plasmodium-falciparum-antigen-var2csa-in-colombia-are-restricted-to-pregnancy-and-are-not-induced-by-exposure-to-p-vivax
#5
Mary Lopez-Perez, Mads Delbo Larsen, Rafael Bayarri-Olmos, Paulina Ampomah, Liz Stevenson, Myriam Arévalo-Herrera, Sócrates Herrera, Lars Hviid
Clinical immunity to malaria is associated with acquisition of IgG specific for members of the Plasmodium falciparum erythrocyte membrane protein 1 (PfEMP1) family of clonally variant antigens on the surface of infected erythrocytes (IEs). The VAR2CSA subtype of PfEMP1 mediates IE binding in the placenta. VAR2CSA-specific IgG is normally acquired only after exposure to placental parasites. However, it was recently reported that men and children from Colombia often have high levels of functional VAR2CSA-specific IgG...
May 21, 2018: Infection and Immunity
https://www.readbyqxmd.com/read/29784542/the-ovary-organization-in-the-marine-limnodriloidin-thalassodrilides-cf-briani-annelida-clitellata-naididae-resembles-the-ovary-of-freshwater-tubificins
#6
Anna Z Urbisz, Łukasz Chajec, Mana Ito, Katsutoshi Ito
In Thalassodrilides cf. briani, the paired ovaries are inconspicuous and polarized structures with developmental gradient of germ cells along their long axis. The about 300 germ cells in the ovary are consolidated into one syncytial cyst and each cell is connected to a common and branched mass of cytoplasm via one stable cytoplasmic bridge. The germ cells differentiate their fate into nurse cells and oocytes. Only one oocyte grows in a given time; it gathers cell organelles and yolk and then it detaches from the gonad...
May 12, 2018: Zoology: Analysis of Complex Systems, ZACS
https://www.readbyqxmd.com/read/29784067/yeast-derivatives-and-wheat-germ-in-the-adult-diet-modulates-fecundity-in-a-tephritid-pest
#7
L Goane, P M Pereyra, F Castro, M J Ruiz, M L Juárez, D F Segura, M T Vera
Anastrepha fraterculus (Wiedemann), a pest of great economic importance in South America, needs urgently to be controlled by environmentally friendly methods such as the sterile insect technique for which mass rearing of insects is required. Because oogenesis takes place during the adult stage, mass-rearing facilities should provide the females a diet that maximizes egg production at the lowest cost. Accordingly, we investigated the effect of artificial protein sources in the adult diet (yeast derivatives of different cost but with similar amino acids profiles, and the addition of wheat germ) on fecundity...
May 22, 2018: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29783809/-mucinous-cystadenocarcinoma-of-ovary-associated-with-neuroendocrine-carcinoma-primary-ovarian-pulmonary-type-small-cell-carcinoma-report-of-a-case
#8
L M Qu, Y P Zhong, L Guo, J S Ni
No abstract text is available yet for this article.
May 8, 2018: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29783799/-primary-carcinoid-of-ovary-a-clinicopathologic-analysis-of-17-cases
#9
R Zhu, X W Xue, Y F Luo, H W Wu, Z Huo
Objective: To study the clinicopathologic feature, diagnostic strategy and prognostic significance of primary carcinoid of the ovary (PCOTO). Methods: A series of 17 patients previously diagnosed as PCOTO at Department of Pathology, Peking Union Medical College Hospital during the period from 2002 to 2017 were evaluated with clinical data analysis, histopathology and immunohistochemistry, and the patients were followed up and the relevant literatures were reviewed. Results: The age of patients ranged from 24 to 64 years (mean, 42 years)...
May 8, 2018: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29783743/cell-propagation-of-cholera-toxin-cta-adp-ribosylating-factor-by-exosome-mediated-transfer
#10
Cristiana Zanetti, Angelo Gallina, Alessia Fabbri, Sofia Parisi, Angela Palermo, Katia Fecchi, Zaira Boussadia, Maria Carollo, Mario Falchi, Luca Pasquini, Maria Luisa Fiani, Massimo Sargiacomo
In this study, we report how the cholera toxin (CT) A subunit (CTA), the enzyme moiety responsible for signaling alteration in host cells, enters the exosomal pathway, secretes extracellularly, transmits itself to a cell population. The first evidence for long-term transmission of CT's toxic effect via extracellular vesicles was obtained in Chinese hamster ovary (CHO) cells. To follow the CT intracellular route towards exosome secretion, we used a novel strategy for generating metabolically-labeled fluorescent exosomes that can be counted by flow cytometry assay (FACS) and characterized...
May 19, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29783074/fsh-receptor-binding-inhibitor-restrains-follicular-development-and-possibly-attenuates-carcinogenesis-of-ovarian-cancer-through-down-regulating-expression-levels-of-fshr-and-er%C3%AE-in-normal-ovarian-tissues
#11
Gong Zhuandi, Che Tuanjie, Lai Luju, Ayimuguli Abdiryim, Deng Yingying, Liang Haoqin, Wei Suocheng, Ding Li
OBJECTIVES: The current study aimed to investigate FSH receptor binding inhibitor (FRBI) effects in the expressions of FSH receptor (FSHR) and estrogen receptor-beta (ERβ) in the mice ovaries at the gene and protein levels, also to find the potential efficacy of FRBI on suppressing ovarian cancer through down-regulating over-expression of FSHR and ERβ in the normal ovarian tissues. METHODS: 180 female mice were randomized into six groups (n = 30). Mice of FRBI-1, FRBI-2 and FRBI-3, FRBI-4 were intramuscularly injected with FRBI of 10, 20, 30 and 40 mg/kg, respectively, for five consecutive days...
May 18, 2018: Gene
https://www.readbyqxmd.com/read/29782841/alternative-splicing-of-gnrh2-and-gnrh2-associated-peptide-plays-roles-in-gonadal-differentiation-of-the-rice-field-eel-monopterus-albus
#12
Ke Feng, Hongrui Luo, Mingxi Hou, Yongming Li, Ji Chen, Zuoyan Zhu, Wei Hu
The rice field eel, Monopterus albus, is a protogynous hermaphrodite fish, in which the gonads are initially female ovaries which then transform into male testes. The exact mechanisms governing sex reversal in the rice field eel are unknown. In this study, a novel alternative splicing variant of GnRH2 (GnRH2-SV), retaining the second intron, was discovered in the gonad of the rice field eel. Compared to GnRH2, GnRH2-SV may give rise to a novel truncated GnRH2-associated peptide (New GAP2). The normal transcript of GnRH2 was primarily expressed in the brain, and could also be detected in the liver, spleen, ovary, and testis...
May 18, 2018: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29782020/whole-mount-immunofluorescence-and-follicle-quantification-of-cultured-mouse-ovaries
#13
Vera D Rinaldi, Jordana C Bloom, John C Schimenti
Research in the field of mammalian reproductive biology often involves evaluating the overall health of ovaries and testes. Specifically, in females, ovarian fitness is often assessed by visualizing and quantifying follicles and oocytes. Because the ovary is an opaque three-dimensional tissue, traditional approaches require laboriously slicing the tissue into numerous serial sections in order to visualize cells throughout the entire organ. Furthermore, because quantification by this method typically entails scoring only a subset of the sections separated by the approximate diameter of an oocyte, it is prone to inaccuracy...
May 2, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29781548/multi-omics-in-high-grade-serous-ovarian-cancer-biomarkers-from-genome-to-the-immunome
#14
Cole Clifford, Natasha Vitkin, Sarah Nersesian, Gillian Reid-Schachter, Julie-Ann Francis, Madhuri Koti
Epithelial ovarian cancer (EOC) is a lethal gynaecological disease that imposes significant burden on health care and patient quality of life. High-grade serous carcinoma of the ovary (HGSC) is the most prevalent histological type of EOC. A vast majority of HGSC cases are diagnosed at late stages of the disease, limiting the opportunity for clinical intervention and resulting in a 10-year survival rate of <20%. Recent innovations in high-throughput molecular analysis of patient-derived specimens may address these clinical challenges by providing an enhanced understanding of the molecular aetiology of ovarian cancer, in addition to offering several opportunities for rational biomarker and targeted therapy discovery...
May 21, 2018: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/29781203/the-long-non-coding-rna-transcriptome-landscape-in-cho-cells-under-batch-and-fed-batch-conditions
#15
Davide Vito, C Mark Smales
The role of non-coding RNAs in determining growth, productivity and recombinant product quality attributes in Chinese hamster ovary (CHO) cells has received much attention in recent years, exemplified by studies into microRNAs in particular. However, other classes of non-coding RNAs have received less attention. One such class are the non-coding RNAs known collectively as long non-coding RNAs (lncRNAs). We have undertaken the first landscape analysis of the lncRNA transcriptome in CHO using a mouse based microarray that also provided for the surveillance of the coding transcriptome...
May 21, 2018: Biotechnology Journal
https://www.readbyqxmd.com/read/29780358/sex-and-gender-differences-in-prevention-of-type-2-diabetes
#16
REVIEW
Jürgen Harreiter, Alexandra Kautzky-Willer
Lifestyle intervention programs are effective in the prevention of type 2 diabetes mellitus (T2DM) in high risk populations. However, most studies only give limited information about the influence of sex and/or gender effectiveness of these interventions. So far, similar outcome was reported for diabetes progression and weight loss. Nevertheless, long-term data on cardiovascular outcome are sparse but favoring women regarding all-cause and cardiovascular mortality. In both men and women, sex hormone imbalances and reproductive disorders are associated with a higher risk of T2DM development...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29780329/involvement-of-met-and-kr-h1-in-jh-mediated-reproduction-of-female-bactrocera-dorsalis-hendel
#17
Yong Yue, Rui-Lin Yang, Wei-Ping Wang, Qi-Hao Zhou, Er-Hu Chen, Guo-Rui Yuan, Jin-Jun Wang, Wei Dou
Juvenile hormone (JH) prevents metamorphosis during insect larval stages and promotes adult reproductive processes. Krüppel-homolog 1 (Kr-h1), a zinc finger transcription factor assumed to be induced by JH via the JH receptor methoprene-tolerant (Met), mediates the antimetamorphic effect of JH in insects, but its function in JH-mediated reproductive processes has not been fully explored. In this study, Met and Kr-h1 involved in the JH signaling pathway were first cloned and identified from the oriental fruit fly, Bactrocera dorsalis , an important pest infesting fruit and vegetables worldwide...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29780295/successful-in-vitro-fertilization-and-embryo-transfer-after-transplantation-of-cryopreserved-ovarian-tissue-report-of-the-first-korean-case
#18
Jung Ryeol Lee, Dayong Lee, Soohyeon Park, Eun Chan Paik, Seul Ki Kim, Byung Chul Jee, Chang Suk Suh, Seok Hyun Kim
For patients at risk of premature ovarian failure with cancer treatment, it is an important option to re-implant the ovarian tissue (OT) after cryopreservation to preserve endocrine function and fertility. With this technique, about 30% of pregnancy success rate and about 90 live births have been reported to date. However, there has been no case report of successful in vitro fertilization (IVF) and embryo transfer (ET) with oocytes collected from transplanted cryopreserved OT in Korea. We report a 30-year old woman with rectal cancer who underwent IVF and ET after cryopreserved OT thawing and re-implantation...
May 21, 2018: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/29778554/cumulative-live-birth-rates-after-ivf-in-patients-with-polycystic-ovaries-phenotype-matters
#19
Michel De Vos, Stéphanie Pareyn, Panagiotis Drakopoulos, José M Raimundo, Ellen Anckaert, Samuel Santos-Ribeiro, Nikolaos P Polyzos, Herman Tournaye, Christophe Blockeel
RESEARCH QUESTION: Do cumulative live birth rates (CLBR) vary among women with different polycystic ovary syndrome (PCOS) phenotypes who undergo IVF/intracytoplasmic sperm injection (ICSI) treatment? DESIGN: In this retrospective cohort study, data from 567 patients undergoing an assisted reproductive technology (ART) cycle between January 2010 and December 2015 were collected. Demographical traits, cycle characteristics and clinical and laboratory data were analysed...
May 7, 2018: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/29778464/peroxiredoxin-2-deficiency-accelerates-age-related-ovarian-failure-through-the-reactive-oxygen-species-mediated-jnk-pathway-in-mice
#20
Sun-Ji Park, Jung-Hak Kim, Dong Gil Lee, Jin-Man Kim, Dong-Seok Lee
Reactive oxygen species (ROS) produced in biological reactions have been shown to contribute to ovarian aging. Peroxiredoxin 2 (Prx2) is an antioxidant enzyme that protects cells by scavenging ROS; however, its effect on age-related, oxidative stress-associated ovarian failure has not been reported. Here, we investigated its role in age-related ovarian dysfunction and 4-vinylcyclohexene diepoxide (VCD)-induced premature ovarian failure using Prx2-deficient mice. Compared to those in wildtype (WT) mice, serum levels of anti-Müllerian hormone, 17β-estradiol, and progesterone and numbers of follicles and corpora lutea were significantly lower in 18-month-old Prx2-/- mice...
May 17, 2018: Free Radical Biology & Medicine
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