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Minimal ovarian stimulation

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https://www.readbyqxmd.com/read/29587614/pharmacogenomics-in-ivf-a-new-era-in-the-concept-of-personalized-medicine
#1
Kallirhoe Kalinderi, Byron Asimakopoulos, Nikos Nikolettos, Vangelis G Manolopoulos
Pharmacogenomics is a promising approach in the field of individualized medicine in in vitro fertilization (IVF) treatment that aims to develop optimized pharmacotherapy depending on the genetic background of each infertile woman, thus to ensure maximum effectiveness of the medication used, with minimal side effects. The unique genetic information of each infertile woman, in combination with already known, as well as new predictors of ovarian response and the progress of pharmacoepigenomics, is anticipated to greatly benefit the process of controlled ovarian stimulation...
January 1, 2018: Reproductive Sciences
https://www.readbyqxmd.com/read/29542355/transcriptional-control-of-the-muc16-promoter-facilitates-follicle-stimulating-hormone-peptide-conjugated-shrna-nanoparticle-mediated-inhibition-of-ovarian-carcinoma-in-vivo
#2
Ming-Xing Zhang, Shan-Shan Hong, Qing-Qing Cai, Meng Zhang, Jun Chen, Xiao-Yan Zhang, Cong-Jian Xu
Ovarian cancer is the leading cause of cancer death among gynecological malignancies. The high mortality rate has not been significantly reduced despite advances in surgery and chemotherapy. Gene therapy shows therapeutic potential, but several key issues must be resolved before clinical application. To minimize toxicity in noncancerous tissues, tumor-specific ligands are conjugated to vectors to increase the selectivity of drug delivery. The expression pattern of follicle-stimulating hormone (FSH) receptor in normal and cancer tissues provides an opportunity for highly selective drug delivery in ovarian cancer...
November 2018: Drug Delivery
https://www.readbyqxmd.com/read/29538675/determinants-of-monozygotic-twinning-in-art-a-systematic-review-and-a-meta-analysis
#3
Kathrine Vauvert R Hviid, Sara Sofia Malchau, Anja Pinborg, Henriette Svarre Nielsen
BACKGROUND: The incidence of monozygotic twins (MZT) after ART appears to be higher than the incidence after spontaneous conceptions contradicting the aim of ART to avoid multiple pregnancies because of the associated risks. OBJECTIVE AND RATIONALE: The aim was to study the frequency of MZT after IVF and ICSI and how it is influenced by the day of embryo transfer, maternal age, zona pellucida manipulation, controlled ovarian stimulation, stimulation protocol, culture media and embryo quality...
March 12, 2018: Human Reproduction Update
https://www.readbyqxmd.com/read/29502188/thirteen-years-experience-in-fertility-preservation-for-cancer-patients-after-in-vitro-fertilization-and-in-vitro-maturation-treatments
#4
Helene Creux, Patricia Monnier, Weon-Young Son, William Buckett
PURPOSE: This study aims to describe the experience and outcomes of in vitro maturation without ovarian stimulation (IVM-FP) and conventional in vitro fertilization after ovarian stimulation (IVF-FP) in a fertility preservation (FP) program for women with cancer. METHODS: Retrospective cohort study from 2003 to 2015 was conducted. The study population consisted of 353 women with cancer who underwent 394 FP cycles (187 IVF-FP cycles and 207 IVM-FP) for oocytes and/or embryos cryopreservation...
March 3, 2018: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29479401/patients-ideas-expectations-and-experience-with-self-operated-endovaginal-telemonitoring-a-prospective-pilot-study
#5
S Verdonckt, J Gerris
Objective: To examine advantages and disadvantages as perceived by patients and their partners using home sonography for monitoring ovarian stimulation prior to artificial fertility treatment. Method: We interviewed 25 patients and their partners and took 44 online questionnaires. All interviews were written out and the transcripts were coded, based on words patients used to describe their experience. The query consisted mostly of statements, of which the participant had to ascertain whether or not they agreed (1= I absolutely don't agree and 5 = I absolutely agree)...
September 2017: Facts, Views & Vision in ObGyn
https://www.readbyqxmd.com/read/29455640/ccl2-ccl5-secreted-by-the-stroma-induce-il-6-pyk2-dependent-chemoresistance-in-ovarian-cancer
#6
Jennifer Pasquier, Marie Gosset, Caroline Geyl, Jessica Hoarau-Véchot, Audrey Chevrot, Marc Pocard, Massoud Mirshahi, Raphael Lis, Arash Rafii, Cyril Touboul
BACKGROUND: Minimal residual disease is the main issue of advanced ovarian cancer treatment. According to the literature and previous results, we hypothesized that Mesenchymal Stromal Cells (MSC) could support this minimal residual disease by protecting ovarian cancer cells (OCC) from chemotherapy. In vitro study confirmed that MSC could induce OCC chemoresistance without contact using transwell setting. Further experiments showed that this induced chemoresistance was dependent on IL-6 OCC stimulation...
February 19, 2018: Molecular Cancer
https://www.readbyqxmd.com/read/29387409/fertility-preservation-in-post-pubescent-female-cancer-patients-a-practical-guideline-for-clinicians
#7
Amirrtha Srikanthan, Eitan Amir, Philippe Bedard, Meredith Giuliani, David Hodgson, Stephanie Laframboise, Anca Prica, Karen Yee, Ellen Greenblatt, Jeremy Lewin, Abha Gupta
Increasing accessibility of fertility preservation (FP) options has permitted women to retain fertility following anticancer therapies. Several published guidelines have made recommendations for FP however their implementation into practice is currently unknown. In this review, we aim to provide oncology clinicians practical information about FP options for post-pubescent female cancer patients and recommendations for care delivery in order to answer preliminary questions and help triage whether FP referral is appropriate...
January 2018: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29386467/alkaloids-from-stephania-venosa-as-chemo-sensitizers-in-skov3-ovarian-cancer-cells-via-akt-nf-%C3%AE%C2%BAb-signaling
#8
May Thuu Mon, Supachai Yodkeeree, Wanisa Punfa, Wilart Pompimon, Pornngarm Limtrakul
Crebanine (CN), tetrahydropalmatine (THP), O-methylbulbocapnine (OMBC) and N-methyl tetrahydropalmatine (NMTHP) are isoquinoline derived natural alkaloids isolated from tubers of Stephania venosa. We investigated chemo-sensitizing effects of these alkaloids in ovarian cancer cells and evaluated underlying molecular mechanisms involved in chemo-sensitivity. Detection of cell apoptosis was evaluated by using flow cytometry. Cell viability was analyzed using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay...
2018: Chemical & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/29365049/reproductive-failure-in-mice-expressing-transgenic-follicle-stimulating-hormone-is-not-caused-by-loss-of-oocyte-quality
#9
Dannielle H Upton, Kirsty A Walters, Kirsten J McTavish, Janet Holt, David J Handelsman, Charles M Allan
Human female reproductive aging features declining ovarian follicle reserve and oocyte quality, and rising levels of circulating follicle stimulating hormone (FSH). We determined the effects of elevated FSH on oocyte-embryo development in mature mice exhibiting premature infertility caused by progressively rising transgenic human FSH (TgFSH) levels. Oocyte-embryo developmental competence and quality were examined using oocyte maturation and aneuploidy rates, biomarkers of oocyte quality, and reciprocal embryo transfers assessed for implantation and pregnancy...
January 22, 2018: Biology of Reproduction
https://www.readbyqxmd.com/read/29338139/occurrence-of-ovarian-follicular-dominance-during-stimulation-for-ivm-impacts-usable-blastocyst-yield
#10
Sergio Romero, Ricardo Pella, Francisco Escudero, Ygor Pérez, Mario García, Patricia Orihuela
OBJECTIVE: To evaluate the influence of ovarian follicular dominance on the outcome of oocyte in-vitro maturation. METHODS: This retrospective cohort study included 21 patients with polycystic ovaries or polycystic ovary syndrome (Rotterdam criteria, 2004) subjected to 24 invitro maturation (IVM) cycles between October 2015 and January 2017. Patients undergoing IVM received minimal gonadotropin stimulation starting on day 2 or 3 of the cycle; ovum pick-up typically occurred on days 6 to 8...
March 1, 2018: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/29247565/oocyte-oxidative-dna-damage-may-be-involved-in-minimal-mild-endometriosis-related-infertility
#11
Michele G Da Broi, Alceu A Jordão, Rui A Ferriani, Paula A Navarro
Early endometriosis is associated with infertility, and oxidative stress may play a role in the pathogenesis of disease-related infertility. This prospective case-control study aimed to compare the presence of oxidative stress markers in the follicular microenvironment and systemic circulation of infertile women with minimal/mild endometriosis (EI/II) versus individuals undergoing controlled ovarian stimulation for intracytoplasmic sperm injection (ICSI). Seventy-one blood samples (27 from infertile women with EI/II and 44 controls with tubal and/or male infertility factor) and 51 follicular fluid samples (19 EI/II and 32 controls) were obtained on the day of oocyte retrieval...
February 2018: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/29198847/first-delivery-in-a-leukemia-survivor-after-transplantation-of-cryopreserved-ovarian-tissue-evaluated-for-leukemia-cells-contamination
#12
Moran Shapira, Hila Raanani, Iris Barshack, Ninette Amariglio, Sanaz Derech-Haim, Meital Nagar Marciano, Eyal Schiff, Raoul Orvieto, Dror Meirow
OBJECTIVE: To describe a successful autologous ovarian tissue re-transplantation in a sterile leukemia survivor after evaluation for minimal residual disease and provide a review of the current literature. DESIGN: Presentation of a carefully designed workup taken to evaluate tissue for minimal residual disease, its limitations, and applicability to other patients. To date, there have not been any publications of auto-transplantations in leukemia survivors, owing to an estimated high risk for malignancy induction...
January 2018: Fertility and Sterility
https://www.readbyqxmd.com/read/29129407/finding-a-place-for-corifollitropin-within-the-pivet-fsh-dosing-algorithms
#13
John L Yovich, Kevin N Keane, Gayatri Borude, Satvinder S Dhaliwal, Peter M Hinchliffe
PIVET recombinant FSH (rFSH) dosing algorithms have been designed for rFSH injection pens, providing optimal pregnancy and live birth productivity rates whilst minimizing risk and occurrence of ovarian hyperstimulation syndrome (OHSS). Recently, long-acting recombinant gonadotrophin corifollitropin (Elonva) was approved for use in assisted reproduction, and welcomed by patients as the single injection allowed ovarian stimulation over 7 days without need for multiple injections. Consequently, another rFSH dosing algorithm was devised to incorporate Elonva, and these cycles were compared to standard rFSH agents, Gonal-f and Puregon...
January 2018: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28925272/-fertility-preserving-methods-in-women-with-breast-cancer-before-gonadotoxic-therapy
#14
N Halászová, I Crha, M Huser, V Weinberger, J Žáková, M Ješeta, E Lousová, E Filipinská, P Ventruba
OBJECTIVE: To present current options and own experiences with ovarian stimulation in young women with breast cancer before gonadotoxic therapy. DESIGN: Review article with own experiencies. METHODS: Literary search, analysis of own experiences with complex therapy in women with breast cancer planning pregnancy, definitions of stimulating protocols, using methods of assisted reproduction. SETTING: Department of Obstetrics and Gynecology, Faculty of Medicine, Masaryk University and University Hospital Brno...
2017: Ceská Gynekologie
https://www.readbyqxmd.com/read/28870891/lidocaine-stimulates-the-function-of-natural-killer-cells-in-different-experimental-settings
#15
REVIEW
Juan P Cata, Maria F Ramirez, Jose F Velasquez, A I Di, Keyuri U Popat, Vijaya Gottumukkala, Dahlia M Black, Valerae O Lewis, Jean N Vauthey
BACKGROUND: One of the functions of natural killer (NK) cells is to eliminate cancer cells. The cytolytic activity of NK cells is tightly regulated by inhibitory and activation receptors located in the surface membrane. Lidocaine stimulates the function of NK cells at clinically relevant concentrations. It remains unknown whether this effect of lidocaine has an impact on the expression of surface receptors of NK cells, can uniformly stimulate across different cancer cell lines, and enhances the function of cells obtained during oncological surgery...
September 2017: Anticancer Research
https://www.readbyqxmd.com/read/28870217/controlled-ovulation-of-the-dominant-follicle-using-progestin-in-minimal-stimulation-in-poor-responders
#16
Qiuju Chen, Yun Wang, Lihua Sun, Shaozhen Zhang, Weiran Chai, Qingqing Hong, Hui Long, Li Wang, Qifeng Lyu, Yanping Kuang
BACKGROUND: The use of progestin (P) during ovarian stimulation is effective in blocking the luteinizing hormone (LH) surge in women with normal ovarian reserve, however, its effects have not been determined in poor responders. This study aimed to explore the follicular dynamics in P-primed minimal stimulation in poor responders. METHODS: A total of 204 infertile women with diminished ovarian reserve were allocated into the medroxyprogesterone acetate (MPA) group or the natural-cycle control group in an alternating order...
September 5, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28854580/ovarian-response-to-controlled-ovarian-hyperstimulation-what-does-serum-fsh-say
#17
Simone C Oudshoorn, Theodora C van Tilborg, Ouijdane Hamdine, Helen L Torrance, Marinus J C Eijkemans, Eef G W M Lentjes, Cornelis B Lambalk, Frank J M Broekmans
STUDY QUESTION: Do serum FSH levels on day of hCG trigger differ between women with a poor, normal or hyper response to a fixed daily dose of 150 IU recombinant FSH (rFSH)? SUMMARY ANSWER: There is no consistent relationship between ovarian response and serum FSH levels on day of hCG trigger in a 150 IU fixed dose treatment protocol. WHAT IS KNOWN ALREADY: When ovarian response to stimulation for IVF/ICSI is suboptimal, the FSH dose is often adjusted in a subsequent cycle, thereby assuming that serum FSH levels were inadequate for optimal stimulation...
August 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28693957/follicle-stimulating-hormone-encapsulation-in-the-cholesterol-modified-chitosan-nanoparticles-via-molecular-dynamics-simulations-and-binding-free-energy-calculations
#18
Mohammad Yahyaei, Faramarz Mehrnejad, Hossein Naderi-Manesh, Ali Hossein Rezayan
Follicle-stimulating hormone (FSH) is widely applied in the modern ovarian stimulation techniques. However, it must be administered daily because of its short half-life. Recently, the cholesterol (CS) modified chitosan (CTS) nanogels have attracted significant interest as promising controlled release protein delivery because of their ability to minimize the aggregation and irreversible denaturation of proteins. Herein, we report a molecular dynamics (MD) simulation investigation on the molecular mechanisms of FSH encapsulation in the CS-CTS nanogels...
July 8, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28629583/ex%C3%A2-vivo-retrieval-and-cryopreservation-of-oocytes-from-oophorectomized-specimens-for-fertility-preservation-in-a-brca1-mutation-carrier-with-ovarian-cancer
#19
Nigel Pereira, Andrea G Hubschmann, Jovana P Lekovich, Glenn L Schattman, Zev Rosenwaks
OBJECTIVE: To report a case of ex vivo oocyte retrieval from oophorectomized specimens in a BRCA1 mutation carrier undergoing surgical staging for ovarian cancer. DESIGN: Video case report and literature review. SETTING: University-affiliated center. PATIENT(S): A 37-year-old single woman, gravida 0, with a known BRCA1 mutation, presented to her oncologist with a complex right ovarian mass and elevated CA-125 level...
August 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28506951/pharmacokinetic-pharmacodynamic-and-clinical-aspects-of-ovulation-induction-agents-a-review-of-the-literature
#20
Serkan Kahyaoğlu, Bülent Yılmaz, Ahmet Zeki Işık
Controlled ovarian hyperstimulation is a key step for successful outcomes of assisted reproductive technique cycle outcomes. Many medications are available, which are commonly useed solely or in combination to achieve multiple follicular development. Pharmacokinetic, pharmacodynamic, and clinical information of ovulation induction drugs deserve to be elucidated for every individual patient before commencing infertility treatment. New concepts and new treatment protocols are introduced as ovulation physiology is understood by infertility specialists...
March 15, 2017: Journal of the Turkish German Gynecological Association
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