7.5 X 11.5.Doubleline.P65

Total Page:16

File Type:pdf, Size:1020Kb

7.5 X 11.5.Doubleline.P65 Cambridge University Press 978-0-521-73072-3 - In-Vitro Fertilization, Third Edition Kay Elder and Brian Dale Index More information Index absent spermatogenesis, effects,153 and Beckwith–Wiedemann beta-globin gene, 239 acid Tyrode’s (AT) drilling of the zona syndrome (BWS), 257, 258 beta-thalassemia, 239 pellucida, 227, 229 and retinoblastoma, 258 bilaminar embryonic disc, 86 acrosome reaction (AR), 51, 52, 53, 54, and risk of infectious agent bilateral tubal pregnancy, 85 73, 218 transmission, 136 biochemical pregnancy, 91 acrosome reaction to ionophore and Russell–Silver syndrome, 258, biogenic law, 1 challenge (ARIC) test, 52 259 biological safety cabinet (BSC), IVF, Active Integrated workstation, 123 and stem cell biology, 94 115 adhesion molecules, 83 COH for, 23, 24, 25 class I, 115 adrenal hypoplasia, 152 derived embryos, 166 class II, 115 adrenocoticotropic hormone (ACTH), epidemiological data in, 257 class III, 117 19 induced epigenetic mistakes, 259, horizontal laminar flow clean bench, adult stem cells. See stem cell biology 260 117 age-related aneuploidy, 238, 242 laboratories in USA, 127 vertical laminar flow clean bench, albumin, 8, 120, 121 light exposure during, 110 113, 114 17-alpha hydroxylase cytochrome microfluidic platforms, 123 blastocoele formation and expansion, P450, 22 ovarian stimulation during 69 alpha-tocopherol, 122 cycles, 41 blastocyst biopsy, 231 amino acid metabolism, 168 problems with effectiveness of, 166 blastocyst expansion and hatching, 70, amino acid profiling, 168 ART protocols, 24 73, 82, 84, 85 amniocentesis, 242, 243 ascorbic acid (vitamin C), 8 cell fate and cell lineages, 70, 71 amplification refractory mutation assisted conception treatment cycle, blastocyst freezing method, 201 system (ARMS), 243 109 blastocyst ICM, 102 amygdala, 19 assisted hatching (AH), 110, 150, 167, blastocyst stage, 4, 60, 64, 66, 68, 69, 72, anaphase, 14 216, 227 120, 123, 165, 166, 169, 170, 197 Anderson Air filter apparatus,137 and cryopreservation, 201 blastocyst transfer, 176 androgen binding proteins (ABP), features, 227 benefits,176 , 177 21 laser, 227 blastocyst transition, 71, 75, 121 androgen secreting tumors, 23 Tyrode’s solution protocol, 227, 229 blastocyst trophectoderm, 82 androgens, 21 assisted reproduction, 16, 23, 46, blastocyst vitrification,201 andrology, 110 109, 219, 258, 260, 261, blastocysts, 73, 82, 83, 84, 85, 86, androstenedione, 22 See also in-vitro fertilization 96, 98, 99, 102, 118, 121, 168, aneuploid, defined,14 (IVF) laboratory 169, 177, 201, 206, 227, 230, aneuploidy screening, 167 assisted zona hatching techniques, 219 259 Angelman syndrome (AS), 258, ATP cleavage, 8 blastomeres, 64, 67, 102 260 atresia, 41 blighted ovum, 91 anterior pituitary gland, 19 Auerbach, Leopold, 60 blood gas analyzer, 132 anti-Müllerian hormone (AMH), 31 autosomal dominant disorders, 239 blood vessels, development, 88 anti-testis factors, 30 autosomal recessive diseases, 239 bone morphogenetic protein-15 apoptosis, 38, 42, 60, 69, 101, 110, 143, av family, 83 (BMP-15), 182 172 azoospermia, 22, 35, 150, 151, 152, 217 bovine embryo culture, 119, 260 arches, 89 buserelin, 24 aromatase cytochrome P450, 22 bacterial cells, 1 ART, 85, 127, 128, 169, 196, 197, 201, balanced translocations, effects of, 154 Ca ionophore A23187, 53 204, 209, 221, 248, 253 Beckmann pH meter, 132 calcium release at fertilization, 57 268 and Angelman syndrome (AS), Beckwith–Wiedemann syndrome calcium-induced calcium release 258 (BWS), 10, 257, 258 (CICR), 57 © in this web service Cambridge University Press www.cambridge.org Cambridge University Press 978-0-521-73072-3 - In-Vitro Fertilization, Third Edition Kay Elder and Brian Dale Index More information Index cAMP, 12, 22, 35, 45, 46, 51, 53, 67, coitus, 50 decidua, 83, 86 73, 148 compaction, 67, 68 decidualization reaction, 83 cancer patients, semen complete abortion, 91 2-deoxyadenosine, 148 cryopreservation for, 205 congenital absence of the vas deferens deoxyribose, 8 capacitation, 51, 52 (CAVD), 152 dermatomes, 89 capacitation in vitro, 52 congenital adrenal hyperplasia, 152 Desert hedgehog gene, 87 capacitation in vivo, 51 congenital bilateral absence of the vas diakinesis, 16 carbohydrates, 5 deferens (CBAVD), 217 differentially methylated regions carbon cartridge filtration, 117 controlled ovarian hyperstimulation (DMRs), 253, 255, 256, 257 cavitation, 68, 69 (COH), 260 digestive epithelial layer, 90 cell aging, 5 baseline assessment, 25 dihydrotestosterone, 31 cell cycle, 2, 12, 13, 45, 60, 64, 67, 68, GnRH analogues, 24, 25 diploid somatic cells, 100 93, 166, 177, 198, 257 suppression mechanism, 23 diploid, defined,14 checkpoints, 16 corpus luteum, 42 disaccharides, 5 DNA-responsive, 16 cortical granules (CG), 55, 56 disposable supplies, used in IVF, 117, G0 phase of, 16 craniophraryngioma, 152 118 G1 phase of, 13 Creutzfeldt–Jakob disease (CJD), 120 DM kinase gene, 241 meiotic, 16 Crinone gel, 26, 202 Dmrt1, 30 phases, 13 crown–rump length (CRL), 91 DNA duplexes, 15 protein activity, 45 cryobiology, principles of, 191 DNA methylation, 6, 12, 64, 252, 253, cell cytoplasm, 8 cryopreservation, 110 256, 259, 260 cell migration, 87 cryopreservation of gametes and during preimplantation cell theory, 1 embryos, 191 development, 257 principles, 1 cryopreservation of samples, storage, DNA methyltransferases (Dnmts), cell–cell recognition, 5 197, 198 256 cell-penetrating peptide (CPP), 101 consent, 198 DNA replication, 9, 10, 14, 16, 64 cellular adhesion molecules, 87 cryopreservation protocols DNA-responsive cell cycle, 16 cellular replication, 13, 14 comparison of slow freezing and Dolly sheep, 99 central nervous system (CNS), 19 vitrification,197 Down’s syndrome, 241, 242 role of reproduction, 19 equilibrium freezing, 196 drosophila gene, 87 centrioles, 58 non-equilibrium freezing, 196, 197 centromere, defined, 14 cryopreserved aliquots of cells, 103 Earle’s (EBSS) solution, 121 centrosomes, 13, 36, 58, 60, 72 cryopreserved embryos, 157 early blastocyst, 177 microtubular organization, 72 Cryotop method, 206 early embryo arrest, 71, 72 Charcot–Marie–Tooth disease, 239 cryptorchidism, 152 early embryo cleavage, 64 chemically defined medium (CDM), cultured zona-free rabbit ICM, 96 early prophase, 13 102 cumulus granulosa cells, 41 E-cadherin, 68, 71 cholesterol side-chain cleavage cumulus–oocyte complex (COC), 42 E-cadherin phosphorylation, 68 cytochrome P450, 22 Cushing’s syndrome, 23, 152 ectoderm layer, 87 chorionic villus sampling (CVS), 238, cycle monitoring, 25, 26 ectopic pregnancy, 85 242 cyclic ADP ribose, 57 Edwards, Robert, 96, 181 chromatids, 2, 13, 14, 37 Cyclogest pessaries, 26 elective single embryo transfer (eSET), defined,14 cysteine, 74 169, 176 chromatin, defined, 14 cystic fibrosis (CF), 152, 217, 238, electrodeionization (EDI), 117 chromosomal abnormalities, 238 239 electronic identity checking/ chromosomal anomalies, testing of, cystic fibrosis conductance regulator witnessing, in IVF, 112 153 (CFTR) gene, 217 elongation, 13 chromosome failures, 16 cytochrome C, 8 embryo biopsy technique, 176, 229, chromosome reproduction, 14 cytochrome oxidase, 8 238, 244, 245 chromosomes, defined,14 cytochrome P450 enzyme triad, 22 blastocyst stage technique, 231 Clearplan, 201 cytokinesis, 14 cleavage stage techniques, 229, 231 cleavage stage blastomeres, 229 cytoplasmic maturity, 181 polar body, 231 clomifene citrate (Clomid), 24 cytosine, 9 embryo cryopreservation, 198 c-Myc, 101 method, 198, 199 co-culture systems, 123 daughter cells, 14, 15 selection of embryos, 198 codons, 10, 11, 12, 13 DAX1 gene, 29, 30 slow freezing protocol, 200 269 Cohen, Jacques, 216 Decapeptyl, 24 use of glass ampules, 200 © in this web service Cambridge University Press www.cambridge.org Cambridge University Press 978-0-521-73072-3 - In-Vitro Fertilization, Third Edition Kay Elder and Brian Dale Index More information Index embryo culture, preparation for, 157 physical changes, 191, 192 two-cell two gonadotropin theory, embryo development, 1 role of cryoprotectant additives 22 amino acids, role of, 73, 74 (CPAs), 194 FertiMorph multilevel system, 167 blastocyst expansion and hatching, supercooling and cell survival, fetal heartbeat (FH), 91 70, 71 192 fetal pole, 91 cavitation, 68, 69, 70 surface area, 195 fibroblast growth factor 9 (FGF-9),31 cholesterol synthesis, 73 without cryoprotectants, 196 flare-up protocol, 24 compaction, 67, 68 endocrine glands, 19 fluorescent in-situ hybridization deamination reactions, 74 endoderm layer, 87 (FISH) technique, 170, 173, electrolyte balance, 73 endoplasmic reticulum (ER), 4, 5 243, 244, 247, 248, 250 embryonic arrest, 71, 72 epiblast, 86, 101 analysis of cleaved human embryos, genome activation, 64, 65, 66, 67 epiblast stem cells (EpiSC), 99 72 glucose, effect of,73 characteristics, 103, 104 analysis of fertilized oocytes, 164 growth factors, 75 markers of pluripotency, 104 folic acid, 75 imprinting, 67 epididymal maturation, 34 follicle development metabolic requirements, 72, 73, epididymal sperm, 150 after puberty,40 74, 75 epididymal sperm cryopreservation, and oocytes, 39 nucleotides, role of, 74, 75 204 during growth phase, 38 paternal factors, 72 epigenetic alterations of LitI and H19, first primordial follicles,38 preimplantation development, 10 follicular cells, 39 64 epigenetic change, 67 follicular destiny, 41, 42 upregulation of pentose phosphate epigenetics, 252 growth factors, 39 pathway, 72, 73 and infertility, 260, 261 role of cumulus cells, 39 vitamin requirements, 75 epigenic marks, 252, 253 follicle stimulating hormone
Recommended publications
  • Effect of Assisted Hatching on Pregnancy Outcomes: a Systematic Review and Meta- Analysis of Randomized Controlled Trials
    Effect of assisted hatching on pregnancy outcomes: a systematic review and meta- analysis of randomized controlled trials The Harvard community has made this article openly available. Please share how this access benefits you. Your story matters Citation Li, Da, Da-Lei Yang, Jing An, Jiao Jiao, Yi-Ming Zhou, Qi-Jun Wu, and Xiu-Xia Wang. 2016. “Effect of assisted hatching on pregnancy outcomes: a systematic review and meta-analysis of randomized controlled trials.” Scientific Reports 6 (1): 31228. doi:10.1038/ srep31228. http://dx.doi.org/10.1038/srep31228. Published Version doi:10.1038/srep31228 Citable link http://nrs.harvard.edu/urn-3:HUL.InstRepos:29002519 Terms of Use This article was downloaded from Harvard University’s DASH repository, and is made available under the terms and conditions applicable to Other Posted Material, as set forth at http:// nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of- use#LAA www.nature.com/scientificreports OPEN Effect of assisted hatching on pregnancy outcomes: a systematic review and meta-analysis of Received: 04 February 2016 Accepted: 15 July 2016 randomized controlled trials Published: 09 August 2016 Da Li1, Da-Lei Yang1, Jing An1, Jiao Jiao1, Yi-Ming Zhou2, Qi-Jun Wu3 & Xiu-Xia Wang1 Emerging evidence suggests that assisted hatching (AH) techniques may improve clinical pregnancy rates, particularly in poor prognosis patients; however, there still remains considerable uncertainty. We conducted a meta-analysis to verify the effect of AH on pregnancy outcomes. We searched for related studies published in PubMed, Web of Science, and Cochrane library databases from start dates to October 10, 2015.
    [Show full text]
  • Pemanfaatan Teknik Assisted Hatching Dalam Meningkatkan Implantasi Embrio
    WARTAZOA Vol. 27 No. 1 Th. 2017 Hlm. 035-044 DOI: http://dx.doi.org/10.14334/wartazoa.v27i1.1412 Pemanfaatan Teknik Assisted Hatching dalam Meningkatkan Implantasi Embrio (Utilization of Assisted Hatching Techniques to Enhance Embryo Implantation) Arie Febretrisiana1 dan FA Pamungkas2 1Loka Penelitian Kambing Potong, PO Box I Sei Putih, Galang 20585, Sumatera Utara 2Pusat Penelitian dan Pengembangan Peternakan, Jl. Raya Pajajaran Kav. E-59, Bogor 16128 [email protected] (Diterima 29 September 2016 – Direvisi 12 Januari 2017 – Disetujui 27 Februari 2017) ABSTRACT Gestation is the main goal for in vitro fertilization. The embryo that has been developed outside the body will be transferred directly into uterus leading to the process of hatching, implantation, and pregnancy. However, approximately 85% of embryos that have been transferred were failed to implant and it might be caused by hatching failure. Hatching is the process of releasing embryo from zona pellucida. If this process does not occur, it will cause pregnancy failure. Assisted hatching is a mechanism that dealing with thinning, slicing or artificially making holes in the zona pellucida to improve hatching. The process can be applied both in fresh or frozen embryos. This review describes various methods in assisted hatching such as enzymatic, chemical, mechanical, and laser beam as well as their advantages and disadvantages. Generally, some researches show that the technology of assisted hatching can improve the percentage of hatching and implantation of the embryo. However, in spite of the benefits, there are such weaknesses find in the zona pellucida of the embryo that has been manipulated such as toxic hazard medium, the risk of damage to the blastomeres or monozygotic twinning.
    [Show full text]
  • Is It Time to Abandon Embryo Byopsy Techniques?”
    FACULTY OF SCIENCES DEGREE IN BIOLOGY FINAL PROJECT ACADEMIC YEAR (2019-2020) TITLE: EMBRYONIC ANEUPLOIDY DETECTION BY NON-INVASIVE METHODS, A REVIEW. “IS IT TIME TO ABANDON EMBRYO BYOPSY TECHNIQUES?” AUTHOR: ÁNGEL MÁÑEZ GRAU 2 SUMMARY: Assisted reproduction is the group of techniques that help people to deal with fertility and sterility problems. These techniques have the goal of achieving a live birth, in which a healthy baby is born. To ensure that the baby is healthy and to avoid any type of pregnancy or birth defects or problems, a genetic test can be performed to the embryo, prior to the transfer and implantation in the mother. This is called the preimplantation genetic test (PGT). The test can be done to detect structural rearrangements (SR), monogenic diseases (M) or aneuploidies (A), and it is mostly done by performing an embryo biopsy on the 5th day of development, following by different genetic approaches. This technique generates lots of controversy, due to ethical and embryo viability implications, because it is not known if it significantly affects the embryo. So, to avoid this kind of problems, non-invasive techniques (niPGT) have been developed. The niPGT relies on the presence of genetic material in the embryo spent culture medium, which is analysed instead of the embryo trophectodermal cells. This techniques has several advantages over the invasive ones. The clearest one is that there is no need to harm the embryo with lasers or pipettes. The need of experimented technicians and expensive laboratory equipment are not required for this type of technique, so it makes it easier and cheaper.
    [Show full text]
  • The Impacts of Laser Zona Thinning on Hatching and Implantation of Vitrified-Warmed Mouse Embryos
    Lasers in Medical Science (2019) 34:939–945 https://doi.org/10.1007/s10103-018-2681-8 ORIGINAL ARTICLE The impacts of laser zona thinning on hatching and implantation of vitrified-warmed mouse embryos Zhengyuan Huang1 & Jinghao Liu2 & Lei Gao1 & Qingrui Zhuan1 & Yuxi Luo 1 & Shien Zhu1 & Kaiyu Lei3 & Xiangwei Fu1 Received: 3 September 2018 /Accepted: 2 November 2018 /Published online: 13 December 2018 # Springer-Verlag London Ltd., part of Springer Nature 2018 Abstract Embryo vitrification has advantages in assisted reproduction yet it also induces zona hardening. Laser zona thinning (LZT) is considered as a solution yet its efficacy and security have not been well studied. In this study, we used vitrified-warmed morulae from 2-month-old and 10-month-old ICR female mice as model to investigate the impacts that LZT treatment brings to the in vitro hatching process and implantation by analyzing hatching rate, implantation rate, and blastocyst quality. The results showed that the fully hatched rate was significantly higher after LZT treatment for both young (25.7% vs. 16.2%, P < 0.05) and aged (36.6% vs. 13.2%, P < 0.01) mice. For zona-thinned morulae in young mice, its onset of hatching occurred earlier (28.6% vs. 8.8%, P < 0.01) at D4 and with a greater percentage of U-shaped hatching at D5 (48.3% vs. 33.0%, P < 0.05). LZT treatment did not induce expression change of apoptosis-related genes in all groups (P > 0.05), but for young mice, the total cell number of day 5 blastocyst in zona-thinned group was significantly less than that of the control group (40.6 ± 5.1 vs.
    [Show full text]
  • Semen Analysis
    HOW TO HAVE A BABY MALPANI INFERTILITY CLINIC TABLE OF CONTENTS PREFACE CHAPTER 1 Do you have an infertility problem? When to start worrying! CHAPTER 2 How Babies are Made - The Basics CHAPTER 3 Finding Out What’s Wrong -- The Basic Medical Tests CHAPTER 4 Testing the Man - Semen Analysis CHAPTER 5 Beyond the Semen Analysis CHAPTER 6 Diagnosis and Treatment for Male Infertility -- More Confusion! CHAPTER 7 The Man with a Low Sperm Count CHAPTER 8 The Latest Advance in Treating the Infertile Man CHAPTER 9 Ultrasound - Seeing with Sound CHAPTER 10 Laparoscopy -- The Kinder Cut CHAPTER 11 Hysteroscopy CHAPTER 12 The Tubal Connection CHAPTER 13 Ovulation -- Normal and Abnormal CHAPTER 14 The Older Woman CHAPTER 15 Polycystic Ovarian Disease (PCOD) CHAPTER 16 The Cervical Factor CHAPTER 17 Hirsutism -- Excess Facial and Body Hair CHAPTER 18 Endometriosis -- The Silent Invader CHAPTER 19 Ectopic Pregnancy – The Time Bomb in the Tube CHAPTER 20 Unexplained Infertility CHAPTER 21 Secondary Infertility CHAPTER 22 Empty Arms -- The Lonely Trauma of Miscarriage CHAPTER 23 Understanding Your Medicines CHAPTER 24 IUI - Intrauterine Insemination CHAPTER 25 Test Tube Babies - IVF & GIFT CHAPTER 26 Preimplantation Genetic Diagnosis - the newest ART CHAPTER 27 Using Donor Sperm CHAPTER 28 Surrogate Mothering CHAPTER 29 When Enough is Enough CHAPTER 30 Adoption - Yours by Choice CHAPTER 31 Childfree living - Life without children CHAPTER 32 Stress And Infertility CHAPTER 33 The Emotional Crisis of Infertility CHAPTER 34 How to Cope with Infertility CHAPTER
    [Show full text]
  • A Comparison of the Clinical Effects of Thinning and Drilling on Laser-Assisted Hatching
    Lasers in Medical Science https://doi.org/10.1007/s10103-020-03230-9 REVIEW ARTICLE A comparison of the clinical effects of thinning and drilling on laser-assisted hatching Yujiang Wang1 & Chuangqi Chen1 & Jiaying Liang1 & Lin Fan 1 & Dun Liu1 & Xiqian Zhang1 & Fenghua Liu1 Received: 23 April 2020 /Accepted: 22 December 2020 # The Author(s) 2021 Abstract To systematically investigate the effects of two methods used for laser-assisted hatching (LAH) on clinical outcomes after day 4 (D4) on frozen-embryo-transfer (FET) cycles. Data from 11471 infertile patients who underwent FET cycles between January 2014 and October 2018 was retrospectively analyzed. The 1410 patients who met the inclusion criteria were further categorized into two groups based on the hatching procedure used: the thinning laser-assisted hatching group (T-LAH, 716 patients), and the drilling laser-assisted hatching group (D-LAH, 694 patients). The baseline characteristics of the patients were consistent between the two groups. However, the rates of implantation and clinical pregnancy were significantly higher in the T-LAH group compared to the D-LAH group (32.73% vs. 29.09%, P < 0.01, and 50.98% vs. 43.95%, P < 0.01). The proportion of live birth was also higher in the T-LAH group, but the difference was insignificant (39.11% vs. 36.89%, P > 0.05). Moreover, there were no significant differences in rates of miscarriages, multiple pregnancies, ectopic pregnancies, preterm births, and congenital disabilities between the two groups. Nonetheless, significantly higher rates of implantation and pregnancy were reported in the T- LAH group compared to the D-LAH group among patients aged <35 years, patients with at least one previously failed cycle, and patients with an endometrial thickness of 8–10 mm.
    [Show full text]
  • Oocyte Freezing Consent
    Female Patient’s Name: _______________________ Social Security #: ___________________ Partner’s Name: _____________________________ Social Security #: ___________________ Karande & Associates, S.C. doing business as InVia Fertility Specialists ASSISTED REPRODUCTIVE TECHNOLOGIES PROGRAM OOCYTE CRYOPRESERVATION - CONSENT Description, Explanation and Informed Consent We, _________________________________________, understand that cryopreservation (freezing) of human oocytes is a procedure that can be utilized to preserve oocytes so that they may be fertilized and transferred at a later time. The members of INVIA FERTILITY SPECIALISTS’s staff, along with affiliated Professional Staff, are known as the “A.R.T. Team”. We understand that by signing this form, we evidence our consent to the use, by the A.R.T. Team, of assisted reproductive technology procedures in connection with our participation in the Assisted Reproductive Technologies Program. It is our understanding that cryopreservation will be performed by the embryologists at InVia Fertility Specialists. Description and Explanation of Program Embryos have been successfully cryopreserved in fertility clinics throughout the past decade. More recently, oocyte cryopreservation has been performed with variable success. Oocyte cryopreservation provides patients with the option of “oocyte banking”, or freezing their eggs for use at a later date. This is especially beneficial for oncology patients or patients wishing to postpone pregnancy until later years. It will also allow oocyte donors to be stimulated independent of recipients. Oocyte cryopreservation also benefits those patients who wish to fertilize only a limited number of oocytes due to religious or ethical reasons. Oocyte cryopreservation may also be employed if for some unexpected reason the male partner cannot produce a semen specimen during the day of egg retrieval.
    [Show full text]
  • 06 Clinical Value Of*Sãoã
    REVIEW Clinical Value of Assisted Hatching in IVF/ICSI Programme Gamze Sinem ÇA⁄LAR, Frank KÖSTER, Klaus D‹EDR‹CH, Safaa AL-HASAN‹ Department of Obstetrics and Gynecology, Medical University, Lubeck, Germany Received 27 October 2004; received in revised form 05 November 2004; accepted 06 November 2004 Abstract The failure of embryonic zona pellucida to hatch following blastocyst expansion has been considered as a contributing fac- tor in implantation failure. Assisted hatching, a commonly performed micromanupulation of zona pellucida, aims to impro- ve implantation and pregnancy rates in assisted reproduction by helping natural hatching process. The techniques used for assisted hatching, the indications of the procedure, the association of the procedure with monozygotic twinning, and the use of this method in combination with blastocyst transfer is clearly discussed in this review. The outcome of IVF with the use of this method in fresh and frozen thawed cycles is clarified. In our opinion, further research with prospective randomized studies is needed for this technique to be used in assisted reproduction. Keywords: assisted hatching, implantation, micromanipulation, zona pellucida Özet “Assisted Hatching” Tekni¤inin IVF/ICSI Program›ndaki Klinik De¤eri Embriyonik zona pellusidan›n blastokistin büyümesi döneminde çatlayamamas›n›n implantasyon esnas›nda baflar›s›zl›¤a ne- den oldu¤u düflünülmektedir. S›k yap›lan bir zona pellusida mikromanipülasyonu olan “assisted hatching” (yard›mla çatlat- ma) yard›mla üreme teknikleri uygulamalar›nda implantasyona ve do¤al çatlamaya yard›mc› olarak gebelik oranlar›n›n art- mas›n› sa¤lamaktad›r. “Assisted hatching” için kullan›lan teknikler, endikasyonlar, prosedürün monozigotik ikizler ile iliflki- si ve bu metodun blastokist transferi ile birlikte kombine kullan›m› bu makalede genifl olarak tart›fl›lm›flt›r.
    [Show full text]
  • Assisted Hatching for in Vitro Fertilization-Embryo Transfer: An
    : In tion Vit Kavoussi SK, J IVF Reprod Med Genet 2014, 2:1 iza ro il -I rt V e F DOI: 10.4172/jfiv.1000121 - F W f o Journal of Fertilization : In Vitro, IVF-Worldwide, o r l l d a w n r i u d o e J ISSN: 2375-4508 Reproductive Medicine, Genitics & Stem Cell Biology Review Article Open Access Assisted Hatching for In Vitro Fertilization-Embryo Transfer: An Update Shahryar K Kavoussi* Austin Fertility & Reproductive Medicine/Westlake IVF, 300 Beardsley Lane, Bldg B, Suite 200, Austin, Texas, USA *Corresponding author: Shahryar K Kavoussi, M.D, M.P.H, Austin Fertility & Reproductive Medicine/Westlake IVF, 300 Beardsley Lane, Bldg B, Suite 200, Austin, Texas, USA, Tel: 001-(512) 444-1414; Fax: 001-(512) 444-5621; E-mail: [email protected] Received date: 06-02-2014; Accepted date: 13-03-2014; Published date: 17-03-2014 Copyright: © 2014 Kavoussi SK. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Abstract Assisted Hatching (AH) is a technique performed after In Vitro Fertilization (IVF) and involves the artificial thinning or opening of the Zona Pellucida (ZP) prior to Embryo Transfer (ET) as an attempt to improve the probability of embryo implantation. AH can be performed by embryologists via mechanical, chemical, or laser-assisted means. A few studies suggest that a larger size of ZP opening/thinning as well as a site near the ICM may be associated with a greater probability for complete hatching.
    [Show full text]
  • Laser Assisted Zona Hatching: What Is the Evidence to Justify Its Use?
    Middle East Fertility Society Journal (2011) 16, 107–113 Middle East Fertility Society Middle East Fertility Society Journal www.mefsjournal.com www.sciencedirect.com DEBATE Laser assisted zona hatching: What is the evidence to justify its use? Comment by: Paul Brezina, Yulian Zhao 1. Introduction 2. Controversies Hatching of the human embryo is necessary for endometrial The role of AH has been the source of much debate. Irrespec- implantation. Therefore, this step necessarily has to occur in tive of the technical approach, AH remains a procedure of lar- all successful pregnancies (1). Problems with the hatching pro- gely unproven worth, regardless of how theoretically appealing cess are thought to be a core reason for pregnancy failure in it might seem to apply to poorer prognosis IVF cases (6). assisted reproductive technologies (ART) cycles (2). ART, par- While some centers have adopted the practice of routinely per- ticularly in vitro fertilization (IVF), has been thought to be forming assisted hatching, others do not believe that this tech- associated with a thickened or dense zona that decreases the nology confers a significant clinical benefit (7). Two meta- likelihood of embryo hatching (3). Specifically, advanced analyses of studies evaluating potential benefits of AH re- maternal age, repeated implantation failure, poor embryo ported significant heterogeneity among study results, suggest- quality, IVF culture environment, and cryopreservation have ing that effects of AH may differ depending on patient all been cited as factors that may be associated with a de- characteristics (8). Both concluded that there is strong evidence creased rate of unassisted hatching (3,4).
    [Show full text]
  • Effects of Laser-Assisted Thinning Versus Opening on Clinical Outcomes According to Maternal Age in Patients with Repeated Implantation Failure
    Lasers in Medical Science (2019) 34:1889–1895 https://doi.org/10.1007/s10103-019-02787-4 ORIGINAL ARTICLE Effects of laser-assisted thinning versus opening on clinical outcomes according to maternal age in patients with repeated implantation failure Jung-Woo Lee1,2 & Jeong-Ho Cha1 & Sun-Hee Shin1,2 & Yun-Jeong Kim1 & Seul-Ki Lee1 & Choon-keun Park2 & Kyung-Ah Pak1 & Ji-Sung Yoon1 & Seo-Young Park1 Received: 12 January 2018 /Accepted: 12 April 2019 /Published online:1 May 2019 # Springer-Verlag London Ltd., part of Springer Nature 2019 Abstract Laser-assisted thinning (LAT) and laser-assisted opening (LAO) are performed as part of human in vitro fertilization (IVF) to increase the implantation rate in patients with a poor prognosis and in cases of repeated implantation failure. However, an insufficient number of studies have directly compared LAT and LAO using the same methods. Therefore, we compared the effects of LAT and LAO on clinical outcomes according to maternal age in patients with repeated implantation failure. This retrospective study was performed in 509 IVF cycles (458 patients). The cycles were divided based on maternal age and the method used (< 38 years LAT, n = 119 vs. LAO, n = 179 and ≥ 38 years LAT, n =72vs.LAO,n = 139). Cleavage-stage embryos before transfer were either thinned or opened using a 1.46-μm noncontact diode laser. We compared the implantation rates and pregnancy outcomes of cycles between LAT and LAO according to maternal age. The characteristics of patients did not differ significantly among the groups (p > 0.05), with the exception of mixed factor infertility, which was more common in the LAT group than in the LAO group among patients < 38 years of age (10.1% vs.
    [Show full text]
  • International Journal of Modern Pharmaceutical Research
    IJMPR 2021, 5(2), 105-110 ISSN: 2319-5878 IJMPR Sangeetha. International Journal of Modern Pharmaceutical Research 105 International Journal of Modern Review Article Pharmaceutical Research SJIF Impact Factor: 5.273 www.ijmpronline.com INVITRO FERTILIZATION – ITS ROLE, IMPORTANCE AND RISK FACTORS S. Sangeetha* Lecturer, Department of Anatomy, Saveetha Dental College, Saveetha Institute of Medical sciences And Technology (SIMATS) Saveetha University, Chennai-600077. Received on: 25/02/2021 ABSTRACT Revised on: 15/03/2021 In vitro fertilisation (IVF) is a process of fertilisation where an egg is combined Accepted on: 05/04/2021 with sperm outside the body, in vitro ("in glass"). The process involves monitoring and stimulating a woman's ovulatory process, removing an ovum or ova (egg or eggs) from *Corresponding Author the woman's ovaries and letting sperm fertilise them in a liquid in a laboratory. After S. Sangeetha the fertilised egg (zygote) undergoes embryo culture for 2–6 days, it is implanted in the same or another woman's uterus, with the intention of establishing a successful Lecturer, Department of pregnancy. IVF is a type of assisted reproductive technology used for infertility Anatomy, Saveetha Dental treatment and gestational surrogacy. A fertilised egg may be implanted into a College, Saveetha Institute of surrogate's uterus, and the resulting child is genetically unrelated to the surrogate. Medical sciences And Some countries have banned or otherwise regulate the availability of IVF treatment, Technology (SIMATS) giving rise to fertility tourism. Restrictions on the availability of IVF include costs and age, in order for a woman to carry a healthy pregnancy to term.
    [Show full text]