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assisted reproductive techniques

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https://www.readbyqxmd.com/read/29164811/congenital-heart-defects-in-ivf-icsi-pregnancy-a-systematic-review-and-meta-analysis
#1
REVIEW
Veronica Giorgione, Fabio Parazzini, Vlasta Fesslova, Sonia Cipriani, Massimo Candiani, Annalisa Inversetti, Cristina Sigismondi, Francesca Tiberio, Paolo Cavoretto
OBJECTIVE: There is no consensus in current practice guidelines whether IVF/ICSI conception represents an indication for performing a fetal echocardiogram. The aim of the study is to assess whether CHD occurs more often with the use of in-vitro-fertilization (IVF)/ intracytoplasmic sperm injection (ICSI) techniques as compared to spontaneous pregnancies. METHODS: A systematic search for studies in PubMed/MEDLINE, Embase and Scopus from inception to September 2017 was conducted...
November 22, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29164653/gradient-sperm-selection-for-reproductive-techniques-in-cattle-is-isolate-a-suitable-replacement-for-percoll
#2
B Sepúlveda, M E Arias, L Aguila, F Zambrano, R Sánchez, R Felmer
In assisted reproductive techniques, it is essential to perform a sperm selection to obtain spermatozoa with high motility and membrane integrity for in vitro fertilisation (IVF) and high-DNA integrity for intracytoplasmic sperm injection (ICSI). In this study, we evaluated whether Isolate(®) was a suitable substitute for Percoll(®) for assisted reproductive techniques. Commercial cryopreserved bovine semen was used after selection in both gradients, and plasma and acrosome membrane integrity, reactive oxygen species (ROS) levels, DNA integrity and mitochondrial membrane potential (ΔΨm) were assessed by flow cytometry...
November 21, 2017: Andrologia
https://www.readbyqxmd.com/read/29162950/intrauterine-insemination-fundamentals-revisited
#3
EDITORIAL
Gautam N Allahbadia
Intrauterine insemination (IUI) is an assisted conception technique that involves the deposition of a processed semen sample in the upper uterine cavity, overcoming natural barriers to sperm ascent in the female reproductive tract. It is a cost-effective, noninvasive first-line therapy for selected patients with functionally normal tubes, and infertility due to a cervical factor, anovulation, moderate male factor, unexplained factors, immunological factor, and ejaculatory disorders with clinical pregnancy rates per cycle ranging from 10 to 20%...
December 2017: Journal of Obstetrics and Gynaecology of India
https://www.readbyqxmd.com/read/29158352/intracytoplasmic-sperm-injection-state-of-the-art-in-humans
#4
Gianpiero D Palermo, Claire L O'Neill, Stephen Chow, Stephanie Cheung, Alessandra Parrella, Nigel Pereira, Zev Rosenwaks
Amongst infertile couples, 25% involve both male and female factors, while male factor alone accounts for another 25% due to oligo-, astheno-, terato-zoospermia, a combination of the three, or even a complete absence of sperm cells in the ejaculate and can lead to a poor prognosis even with the help of assisted reproductive technology (ART). Intracytoplasmic sperm injection (ICSI) has been with us now for a quarter of a century and in spite of the controversy generated since its inception, it remains in the forefront of the techniques utilized in ART...
November 20, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/29154161/effect-of-bovine-sperm-chromatin-integrity-evaluated-using-three-different-methods-on-in%C3%A2-vitro-fertility
#5
L S Castro, A F P Siqueira, T R S Hamilton, C M Mendes, J A Visintin, M E O A Assumpção
In vitro fertility potential of individual bulls is still relatively uncharacterized. Classical sperm analysis does not include the evaluation of all sperm characteristics and thus, some cell compartments could be neglected. In humans, sperm DNA integrity has already proven to have major influence in embryo development and assisted reproduction techniques successfully. In bovine, some studies already correlated chromatin integrity with field fertility. However, none of those have attempted to relate DNA assessment approaches such as chromatin deficiency (CMA3), chromatin stability (SCSA; AO+) and DNA fragmentation (COMET assay) to predict in vitro bull fertility...
November 10, 2017: Theriogenology
https://www.readbyqxmd.com/read/29129955/a-comparative-analysis-of-bioethical-issues-from-view-points-of-religious-affairs-administration-in-turkey-roman-catholicism-and-orthodox-judaism
#6
Cemal Huseyin Güvercin, Kerim M Munir
The arguments set forth by religious authority are important since they play a crucial role in shaping the social values of the public and influence the decision of individuals in practice pertaining to bioethical issues. The Religious Affairs Administration (RAA) was established at the inception of the Republic of Turkey in 1924 to guide religious considerations moving out of the Ottoman caliphate to a secular bioethical framework. In this article, the bioethical views of the RAA under Islamic tradition is examined and contrasted with those influenced by the Roman Catholic and Orthodox Judaic traditions...
July 2017: Acta Bioethica
https://www.readbyqxmd.com/read/29128735/nursing-and-midwifery-students-experiences-with-the-course-of-infertility-and-assisted-reproductive-techniques-a-focus-group-study-from-turkey
#7
Gozde Gokçe Isbir, Yeter Durgun Ozan
Nurses and midwifes without sufficient knowledge of infertilitare not likely to provide counseling and support for people suffering from infertility. This study aimed to evaluate nursing and midwifery students' experiences with the Course on Infertility and Assisted Reproductive Techniques. Our study had a qualitative descriptive design. Total number of the participants was 75. The analysis revealed five primary themes and twenty-one sub-themes. The themes were (1) action, (2) learner centered method, (3) interaction, (4) nursing competencies, and (5) evaluation...
October 7, 2017: Nurse Education in Practice
https://www.readbyqxmd.com/read/29113725/hormonal-induction-of-ovulation-using-ovaprim%C3%A2-d-arg-6-pro-9-net-sgnrh-domperidone-and-its-impact-on-embryonic-development-of-wild-caught-longspine-scraper-capoeta-trutta-heckel-1843
#8
Vahid Zadmajid, Rahman Mirzaee, Hamid Hoseinpour, Nazir Vahedi, Ian Anthony Ernest Butts
Knowledge of gamete quality is a prerequisite for developing techniques to fertilize eggs and rear offspring for hatchery production. Our objective was to develop assisted reproductive techniques, via hormonal induction of final oocyte maturation (FOM), for Longspine scraper, Capoeta trutta. Fish were administered injections of salmon gonadotropin-releasing hormone analogue containing anti-dopaminergic drug (Ovaprim™) or saline (control). Effects of Ovaprim on induction of ovulation, gamete quality, embryonic development, and larval survival were later examined with serum steroid hormone levels and ovarian histology...
October 23, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/29111312/perinatal-outcomes-after-stimulated-versus-natural-cycle-ivf-a-systematic-review-and-meta-analysis
#9
REVIEW
Mohan Shashikant Kamath, Richard Kirubakaran, Mariano Mascarenhas, Sesh Kamal Sunkara
Pregnancies resulting from assisted reproductive techniques are at higher risk of adverse perinatal outcomes compared with spontaneous conceptions. Underlying infertility and IVF procedures have been linked to adverse perinatal outcomes. It is important to know if ovarian stimulation influences perinatal outcomes after IVF. A systematic search for relevant studies was conducted up to November 2016 on the following databases: PubMed, EMBASE, DARE and Cochrane Central Register of Controlled Trials. Perinatal outcomes included preterm birth (PTB), low birth weight (LBW), small for gestational age (SGA), large for gestational age (LGA) and congenital anomalies...
October 10, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/29107715/differed-surgery-in-patient-with-colorectal-endometriosis-and-pregnancy-intention-is-it-reasonable
#10
S Touleimat, E Huet, S Sanguin, H Roman
The management of patients presenting deep infiltrating endometriosis involving the rectum (DIER) and pregnancy intention is controversial. Assisted Reproduction Techniques (ART) are often proposed first, but this may lead to complications and further difficulties managing DIER. A 29-years-old woman was diagnosed with pre-occlusive DIER. However, she was offered in vitro fertilization (IVF) and underwent six unsuccessful cycles with serious complications: an ectopic pregnancy and a hemoperitoneum following arterial injury during oocyte retrieval, requiring two laparotomies in emergency...
October 28, 2017: Journal of gynecology obstetrics and human reproduction
https://www.readbyqxmd.com/read/29105395/the-effect-of-vitrification-on-expression-and-histone-marks-of-igf2-and-oct4-in-blastocysts-cultured-from-two-cell-mouse-embryos
#11
Maryam Jahangiri, Maryam Shahhoseini, Bahar Movaghar
OBJECTIVES: Vitrification is increasingly used in assisted reproductive technology (ART) laboratories worldwide. In this study the effect of vitrification on the expression and modifications of H3 histones of Igf2 and Oct4 was investigated in blastocysts cultured from vitrified and non-vitrified two-cell embryos. MATERIALS AND METHODS: In this experimental study, two-cell embryos were cultured in KSOM medium to reach the blastocyst stage. Expression of Igf2 and Oct4 and modifications of H3 histones in regulatory regions of both genes were compared with in vivo blastocysts, which comprise the control group...
January 2018: Cell Journal
https://www.readbyqxmd.com/read/29105394/melatonin-pretreated-blastocysts-along-with-calcitonin-administration-improved-implantation-by-upregulation-of-heparin-binding-epidermal-growth-factor-expression-in-murine-endometrium
#12
Fatemeh Moghani-Ghoroghi, Ghazaleh Moshkdanian, Mojtaba Sehat, Seyed Noureddin Nematollahi-Mahani, Iraj Ragerdi-Kashani, Parichehr Pasbakhsh
OBJECTIVES: Implantation failure is an obstacle in assisted reproduction techniques (ART). Calcitonin is a molecules involved in uterine receptivity and embryo implantation. Melatonin can promote embryo quality and improve implantation. This study examines the effect of pretreatment of blastocysts with melatonin and calcitonin on heparin binding-epidermal growth factor (HB-EGF) expression in murine endometrium. MATERIALS AND METHODS: In this experimental study, we collected 2-cell embryos from the oviducts of 1...
January 2018: Cell Journal
https://www.readbyqxmd.com/read/29102407/physical-and-kinematic-properties-of-cryopreserved-camel-sperm-after-elimination-of-semen-viscosity-by-different-techniques
#13
Khalid El-Bahrawy, Sherif Rateb, Marwa Khalifa, Davide Monaco, Giovanni Lacalandra
This investigation aimed to determine the influence of using different techniques for liquefaction of semen on post-thaw physical and dynamic characteristics of camel spermatozoa. A total of 144 ejaculates were collected from 3 adult camels, Camelus dromedarius, twice-weekly over 3 consecutive breeding seasons. A raw aliquot of each ejaculate was evaluated for physical and morphological properties, whereas the remaining portion was diluted (1:3) with glycerolated Tris lactose egg yolk extender, and was further subjected to one of the following liquefaction treatments: control (untreated), 5μl/ml α-amylase, 0...
October 31, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/29102147/invited-review-breeding-and-ethical-perspectives-on-genetically-modified-and-genome-edited-cattle
#14
S Eriksson, E Jonas, L Rydhmer, H Röcklinsberg
The hot topic of genetic modification and genome editing is sometimes presented as a rapid solution to various problems in the field of animal breeding and genetics. These technologies hold potential for future use in agriculture but we need to be aware of difficulties in large-scale application and integration in breeding schemes. In this review, we discuss applications of both classical genetic modifications (GM) using vectors and genome editing in dairy cattle breeding. We use an interdisciplinary approach considering both ethical and animal breeding perspectives...
October 25, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29099116/la-depreciaci%C3%A3-n-de-los-derechos-humanos-y-la-regulaci%C3%A3-n-de-la-reproducci%C3%A3-n-humana-asistida-en-m%C3%A3-xico
#15
Rosa Verónica Esparza Pérez
Infertility represents a problem in the context of reproductive health; to treat it were developed the techniques of assisted human reproduction, despite medical advances, the practice of techniques is subject to medical, legal and ethical dysfunctions. In Mexico, since the late 1980s assisted reproduction clinics were set up in public and private sector hospitals; however, they do not yet have a legal framework to regulate them in a specific way, which causes human rights violations that could be avoided with adequate regulation...
2017: Gaceta Médica de México
https://www.readbyqxmd.com/read/29091147/progesterone-level-on-the-day-of-hcg-administration-in-relation-to-the-pregnancy-rates-of-patients-undergoing-assisted-reproduction-techniques
#16
Renato de Oliveira, Fernanda Godoy Cabral, Waldemar de Almeida Pereira Carvalho, Emerson Barchi Cordts, Bianca Bianco, Caio Parente Barbosa
OBJECTIVE: To evaluate the predictive capacity for pregnancy of the progesterone level on the day of administering human chorionic gonadotropin, in women submitted to assisted reproductive techniques. METHODS: An observational study with 914 women submitted to assisted reproductive techniques from August 2014 to June 2016. RESULTS: Total pregnancy rate was 34.58%; in that, the pregnancy rate in women <35 years, between 35 and 38, and >38 years was, respectively, 42...
July 2017: Einstein
https://www.readbyqxmd.com/read/29090103/unilateral-atraumatic-expulsion-of-an-ectopic-pregnancy-in-a-case-of-bilateral-ectopic-pregnancy
#17
Victoria Sampson, Oluremi Mogekwu, Ammar Ahmed, Farida Bano
Ectopic pregnancy occurs in 1-2% of pregnancies. The fallopian tube is the most common site; however, bilateral tubal ectopic pregnancy is an extremely rare phenomenon, seen in approximately 1/200,000 pregnancies. It is usually the result of assisted reproductive techniques (ART). Ultrasound (USS) and serial beta-hCG levels have shown poor efficacy for accurate diagnosis. Laparoscopy is the diagnostic gold standard. The majority of cases are managed surgically with bilateral salpingectomy. A 26-year-old female presented to our early pregnancy unit with pain and vaginal bleeding at 5-week gestation after IVF...
2017: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29089948/flowering-time-gene-variation-in-brassica-species-shows-evolutionary-principles
#18
Sarah V Schiessl, Bruno Huettel, Diana Kuehn, Richard Reinhardt, Rod J Snowdon
Flowering time genes have a strong influence on successful reproduction and life cycle adaptation. However, their regulation is highly complex and only well understood in diploid model systems. For crops with a polyploid background from the genus Brassica, data on flowering time gene variation are scarce, although indispensable for modern breeding techniques like marker-assisted breeding. We have deep-sequenced all paralogs of 35 Arabidopsis thaliana flowering regulators using Sequence Capture followed by Illumina sequencing in two selected accessions of the vegetable species Brassica rapa and Brassica oleracea, respectively...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29082206/the-society-for-translational-medicine-clinical-practice-guidelines-for-sperm-dna-fragmentation-testing-in-male-infertility
#19
REVIEW
Ashok Agarwal, Chak-Lam Cho, Ahmad Majzoub, Sandro C Esteves
Sperm DNA fragmentation (SDF) testing has been emerging as a valuable tool for male fertility evaluation. While the essential role of sperm DNA integrity in human reproduction was extensively studied, the clinical indication of SDF testing is less clear. This clinical practice guideline provides recommendations of clinical utility of the test supported by evidence. It is intended to serve as a reference for fertility specialists in identifying the circumstances in which SDF testing should be of greatest clinical value...
September 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/29072100/gonadal-dysfunction-in-adult-male-patients-with-thalassemia-major-an-update-for-clinicians-caring-for-thalassemia
#20
Vincenzo De Sanctis, Ashraf T Soliman, Heba Elsedfy, Salvatore Di Maio, Duran Canatan, Nada Soliman, Mehran Karimi, Christos Kattamis
Hypogonadism is the most frequently reported endocrine complication, affecting 40%-80% of thalassemia major (TM) patients. The prevalence and severity of hypogonadism in TM varies among studies, depending on patients' age, genotype, transfusion frequency and starting age and efficiency of iron chelation. Areas covered: The diagnosis requires careful clinical assessment and appropriate laboratory testing. Its management is more complex compared to other 'classical' causes of hypogonadism because of multiple associated disorders (cardiac, hepatic and endocrine) and other contributing factors basically iron overload and iron toxicity...
November 2, 2017: Expert Review of Hematology
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