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In vitro fertilization

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https://www.readbyqxmd.com/read/28828900/advances-in-fertility-preservation-of-female-patients-with-hematological-malignancies
#1
Mahmoud Salama, Vladimir Isachenko, Evgenia Isachenko, Gohar Rahimi, Peter Mallmann
The most common forms of hematological malignancies that occur in female reproductive years are lymphoma and leukemia. Areas covered: Several aggressive gonadotoxic regimens such as alkylating chemotherapy and total body irradiation are used frequently in treatment of lymphoma and leukemia leading to subsequent iatrogenic premature ovarian failure and fertility loss. In such cases, female fertility preservation options should be offered in advance. Expert commentary: In order to preserve fertility of young women and girls with lymphoma and leukemia, several established, experimental, and debatable options can be offered before starting chemotherapy and radiotherapy...
August 22, 2017: Expert Review of Hematology
https://www.readbyqxmd.com/read/28827310/isolation-and-characterization-of-string-forming-female-germline-stem-cells-from-ovaries-of-neonatal-mice
#2
Jing Liu, Dantong Shang, Yao Xiao, Pei Zhong, Hanhua Cheng, Rongjia Zhou
Germline stem cells are essential in the generation of both male and female gametes. In mammals, the male testis produces sperm throughout the entire lifetime, facilitated by testicular germline stem cells. Oocyte renewal ceases in postnatal or adult life in mammalian females, suggesting that germline stem cells are absent from the mammalian ovary. However, studies in mice, rats, and humans have recently provided evidence for ovarian female germline stem cells (FGSCs). A better understanding of the role of FGSCs in ovaries could help improve fertility treatments...
August 21, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28826740/the-effect-of-parnaparin-sodium-on-in-vitro-fertilization-outcome-a-prospective-randomized-controlled-trial
#3
Corrado Lodigiani, Francesco Dentali, Elena Banfi, Paola Ferrazzi, Luca Librè, Ilaria Quaglia, Luca Cafaro, Emanuela Morenghi, Veronica Pacetti, Elena Zannoni, Anna Maria Baggiani, Paolo Emanuele Levi-Setti
INTRODUCTION: In-vitro and in-vivo models suggest the influence of low-molecular weight heparin on conception in infertile women undergoing in vitro fertilization procedures (IVF). In this randomized controlled trial we assessed whether a low-molecular weight heparin (parnaparin) could affect IVF outcomes. MATERIALS AND METHODS: 271cycles were analyzed in 247 women having a first or subsequent IVF cycle at Fertility Center of Humanitas Research Hospital. Patients, without severe thrombophilia and hormonal or active untreated autoimmune disorders, were randomly allocated (1:1) to receive for the whole cycle parnaparin, or routine hormonal therapy only...
August 15, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28823068/stress-affects-surface-glycoconjugates-of-the-rat-endometrium-at-the-time-of-implantation
#4
Elham Aliabadi, Zohreh Makoolati, Tahereh Talaei-Khozani, Fakhreddin Mesbah Ardekani
One of the treatments to infertility is In Vitro Fertilization (IVF). In the course of IVF, fertilization rate can be improved through stress reduction. Probably one of the causes of low outcome of IVF is changes in uterine glycoconjugates that are first site of contact between blastocyst and uterus, due to stress, e.g., stress of injection. Thus, the study of the injectional stress effects on implantation period is very important to improve the outcome of IVF. Sixteen mature female rats were divided to experimental and control groups...
August 19, 2017: Glycoconjugate Journal
https://www.readbyqxmd.com/read/28822827/host-genes-regulate-transcription-of-sperm-introduced-hepatitis-b-virus-genes-in-embryo
#5
Ying Zhong, Dong-Ling Liu, Mohamed Morsi M Ahmed, Peng-Hao Li, Xiao-Ling Zhou, Qing-Dong Xie, Xiao-Qing Xu, Ting-Ting Han, Zhi-Wei Hou, Chen-Yao Zhong, Ji-Hua Huang, Fei Zeng, Tian-Hua Huang
Hepatitis B virus (HBV) can invade the male germline, and sperm-introduced HBV genes could be transcribed in embryo. This study was to explore whether viral gene transcription is regulated by host genes. Embryos were produced by in vitro fertilization of hamster oocytes with human sperm containing the HBV genome. Total RNA extracted from test and control embryos were subjected to SMART-PCR, SSH, microarray hybridization, sequencing and BLAST analysis. Twenty-nine sequences showing significant identity to five human gene families were identified, with CSH2, EIF4G2, PCBD2, PSG4 and TTN selected to represent target genes...
August 16, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28822715/reproductive-outcomes-of-segmented-in-vitro-fertilization-in-patients-diagnosed-with-endometriomas
#6
Kemal Ozgur, Hasan Bulut, Murat Berkkanoglu, Kevin Coetzee
STUDY OBJECTIVE: To assess the impact of ovarian endometriomas on endometrial receptivity in frozen embryo transfers (FET) of segmented in vitro fertilization (IVF) cycles. DESIGN: Retrospective, matched-control study (Canadian Task Force Classification II-2). SETTING: A single, private assisted reproductive technology center. PATIENTS: Thirty patients diagnosed with unilateral or bilateral endometrioma were compared with 60 patients without endometrioma from 1,894 patients who underwent segmented IVF treatment between September 2014 and September 2016...
August 16, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28822010/vitrification-of-human-immature-oocytes-before-and-after-in-vitro-maturation-a-review
#7
REVIEW
Mohammad Ali Khalili, Abbas Shahedi, Sareh Ashourzadeh, Stefania Annarita Nottola, Guido Macchiarelli, Maria Grazia Palmerini
The use of immature oocytes subjected to in vitro maturation (IVM) opens interesting perspectives for fertility preservation where ovarian reserves are damaged by pathologies or therapies, as in PCO/PCOS and cancer patients. Human oocyte cryopreservation may offer some advantages compared to embryo freezing, such as fertility preservation in women at risk of losing fertility due to oncological treatment or chronic disease, egg donation and postponing childbirth. It also eliminates religious and/or other ethical, legal, and moral concerns of embryo freezing...
August 18, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28820408/-thrombophilic-genetic-mutations-and-polymorphisms-in-women-with-infertility-and-failed-in-vitro-fertilization
#8
G Abrahamyan
Occurrence of pregnancy after in vitro fertilization depends of two components: functional adequacy of the embryo at the blastocyst stage and receptivity of endometrium, which, according to modern perception, are determinate in achieving optimal conditions of implantation. From the pregnancy occurrence point of view, as well as in regard to its further development , implantation is the most crucial phase of IVF/ICSI and ET. As the same time, this phase is also the most vulnerable. Multiple researches have proven the role of mother thrombophilia for genesis of gestation complications and early embryo losses, but in relation to this problem i the context of IVF there is still a lot to be detailed...
July 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28820406/-results-of-preparation-and-implementation-of-ivf-program-in-patients-with-thrombophilia-and-history-of-failed-ivf
#9
G Abrahamyan
The problem of infertility and reproductive losses maintains its urgency, as well as medical and social significance. Frequency of infertility in overall population, according to the data from different authors, varies from 9 to 18 per cent. Methods of aided reproductive technologies (ART) opened a new era in the field of correction of infertile marriage. As a result, more and more couples choose to solve this problem by means of aided reproductive technologies (ART): in-vitro fertilization (IVF) and embryo transfer (ET)...
July 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28819883/how-the-political-becomes-private-in-vitro-fertilization-and-the-catholic-church-in-poland
#10
Magdalena Radkowska-Walkowicz
The Polish debate on in vitro fertilization (IVF) is extremely heated and highly politicized. The hierarchs of the Catholic vehemently oppose the use of IVF. In this text, I present the Church's approach to IVF. Basing on the documentary film, Three Conversations about Life, and ethnographic research, as well as an analysis of Vatican documents and official statements of Polish bishops, I show how the positions of clergy might influence private lives. I indicate series of tensions associated with the "politics of morality" of the Catholic Church and the daily lives of people, who have children thanks to IVF...
August 17, 2017: Journal of Religion and Health
https://www.readbyqxmd.com/read/28818301/in-vitro-fertilization-and-adverse-obstetric-and-perinatal-outcomes
#11
Chantae S Sullivan-Pyke, Suneeta Senapati, Monica A Mainigi, Kurt T Barnhart
Most IVF-conceived children are healthy, but IVF has also been associated with adverse obstetric and perinatal outcomes as well as congenital anomalies. There is also literature suggesting an association between IVF and neurodevelopmental disorders as well as potentially long-term metabolic outcomes. The main driver for adverse outcomes is the higher risk of multiple gestations in IVF, but as the field moves toward single embryo transfer, the rate of multiple gestations is decreasing. Studies have shown that singleton IVF pregnancies still have a higher incidence of adverse outcomes compared to unassisted singleton pregnancies...
August 14, 2017: Seminars in Perinatology
https://www.readbyqxmd.com/read/28816268/-expression-and-localization-of-transmembrane-protein-cmtm2-in-human-testis-and-sperm
#12
X W Zhang, K Lan, W B Yang, Q Li, Y P Zhao, H Q Yin, B Kite, W J Bai, T Xu
OBJECTIVE: To study the expression of transmembrane protein CMTM2 in the testis and sperm of adult males and to approach the potential function of the protein in the male reproductive system. METHODS: The expression of CMTM2 in human testis and sperm was confirmed by Western blot. Immunohistochemical staining was used for detecting CMTM2 localization in the testis tissue, TRITC-CMTM2 and FITC-Hoechst double immunofluorescence staining was performed to examine the subcellular localization of CMTM2 in the human sperm before and after acrosome reaction, that is, immunofluorescent staining was used for detecting CMTM2 localization in both the testis and sperm before and after the acrosome reaction...
August 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28811855/impact-of-the-great-east-japan-earthquake-and-fukushima-nuclear-power-plant-accident-on-assisted-reproductive-technology-in-fukushima-prefecture-the-fukushima-health-management-survey
#13
Masako Hayashi, Keiya Fujimori, Seiji Yasumura, Akihito Nakai
BACKGROUND: The aim of the study was to evaluate the incidences and obstetric outcomes of women who conceived using assisted reproductive technology (ART) procedures in Fukushima Prefecture before and after the Great East Japan Earthquake and Fukushima nuclear power plant accident. METHODS: Information was collected and analyzed from 12,070 women who conceived with or without ART in Fukushima Prefecture during the 9 months before and after the disaster. RESULTS: During the 9 months before and after the disaster, 138 (2...
September 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28810691/improvement-of-implantation-potential-in-mouse-blastocysts-derived-from-ivf-by-combined-treatment-with-prolactin-epidermal-growth-factor-and-4-hydroxyestradiol
#14
Miki Takeuchi, Misato Seki, Etsuko Furukawa, Akihito Takahashi, Kyosuke Saito, Mitsuru Kobayashi, Kenji Ezoe, Emiko Fukui, Midori Yoshizawa, Hiromichi Matsumoto
STUDY QUESTION: Can supplementation of medium with prolactin (PRL), epidermal growth factor (EGF) and 4-hydroxyestradiol (4-OH-E2) prior to embryo transfer improve implantation potential in mouse blastocysts derived from IVF? SUMMARY ANSWER: Combined treatment with PRL, EGF and 4-OH-E2 improves mouse blastocyst implantation rates, while alone, each factor is ineffective. WHAT IS KNOWN ALREADY: Blastocyst dormancy during delayed implantation caused by ovariectomy is maintained by continued progesterone treatment in mice, and estrogen injection rapidly activates blastocysts to implantation-induced status in vivo...
August 1, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28810198/phthalate-metabolites-related-to-infertile-biomarkers-and-infertility-in-chinese-men
#15
Liangpo Liu, Heng Wang, Meiping Tian, Jie Zhang, Parinya Panuwet, Priya Esilda D'Souza, Dana Boyd Barr, Qingyu Huang, Yankai Xia, Heqing Shen
Although in vitro and in vivo laboratory studies have demonstrated androgen and anti-androgen effects on male reproduction from phthalate exposures, human studies still remain inconsistent. Therefore, a case-control study (n = 289) was conducted to evaluate the associations between phthalate exposures, male infertility risks, and changes in metabolomic biomarkers. Regional participants consisted of fertile (n = 150) and infertile (n = 139) males were recruited from Nanjing Medical University' affiliated hospitals...
August 12, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28809026/handling-of-gametes-for-in-vitro-insemination-in-birds
#16
Shusei Mizushima, Mei Matsuzaki, Tomohiro Sasanami
A characteristic biological property of avian gamete (e.g., extremely large egg and polyspermic fertilization) does not allow the direct observation of sperm-egg interactions in vitro, but recent research advances make it possible to manipulate the gamete in vitro. Here, we describe the techniques for the handling of gametes required for in vitro fertilization assay. In addition, we also introduce the procedures for sperm-perivitelline membrane assay, intracytoplasmic sperm injection, and ex ovo culture.
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28808197/effect-of-zeaxanthin-on-porcine-embryonic-development-during-in-vitro-maturation
#17
Seo-Jin Park, Kyoung-Ha So, Sang-Hwan Hyun
Zeaxanthin is a common carotenoid, which is a powerful antioxidant that protects against damage caused by reactive oxygen species. The aim of the present study was to investigate the effects of zeaxanthin supplementation on in vitro maturation of porcine embryo development. We investigated nuclear maturation, intracellular glutathione (GSH), and reactive oxygen species (ROS) levels during in vitro maturation, and subsequent embryonic development following parthenogenetic activation and in vitro fertilization (IVF)...
January 19, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28808086/a-pharmacological-study-of-arabidopsis-cell-fusion-between-the-persistent-synergid-and-endosperm
#18
Kazuki Motomura, Tomokazu Kawashima, Frédéric Berger, Tetsu Kinoshita, Tetsuya Higashiyama, Daisuke Maruyama
Cell fusion is a pivotal process in fertilization and multinucleate cell formation. A plant cell is ubiquitously surrounded by hard cell wall, and very few cell fusions have been observed except for gamete fusions. We recently reported that the fertilized central cell (the endosperm) absorbs the persistent synergid, a highly differentiated cell necessary for pollen tube attraction. The synergid-endosperm fusion (SE fusion) appears to eliminate the persistent synergid from fertilized ovule in Arabidopsis thaliana Here, we analyzed the effects of various inhibitors on SE fusion by an in vitro-culture system...
August 14, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28807807/in-vitro-fertilization-ivf-success-rates-after-surgically-treated-endometriosis-and-effect-of-time-interval-between-surgery-and-ivf
#19
Basheer AlKudmani, Itai Gat, Danielle Buell, Joveriyah Salman, Khaled Zohni, Clifford Librach, Prati Sharma
STUDY OBJECTIVE: To evaluate the impact of endometriosis staging and endometriomas on IVF outcome and to assess the optimal time interval between laparoscopy and IVF. DESIGN: Retrospective clinical study. DESIGN CLASSIFICATION: II1 SETTING: University affiliated private infertility clinic PATIENTS: 216 infertile patients with endometriosis and 209 infertile patients without endometriosis. INTERVENTIONS: Laparoscopy, In Vitro Fertilization (IVF)...
August 11, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28807160/treatment-of-chinese-herbal-medicine-for-female-infertility
#20
Dan Jiang, Lily Li, Bai-Yun Zeng
Female infertility is when a woman of reproductive age and sexual active, without contraception, cannot get pregnant after a year and more or keeps having miscarriages. Although conventional treatments for infertility such as hormone therapy, in vitro fertilization and many more, helped many female patients with infertility get pregnant during past a few decades, it is far from satisfactory with prolonging treatment time frames and emotional and financial burden. In recent years, more patients with infertile problems are seeking to alternative and complementary medicines to achieve a better outcome...
2017: International Review of Neurobiology
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