نتایج جستجو برای: vitro fertilization

تعداد نتایج: 431904  

Journal: :Therapeutics and Clinical Risk Management 2006
Jeff Wang Mark V Sauer

In vitro fertilization, popularly referred to as IVF, has captured the attention of the public since its sensational introduction in 1978. Today assisted reproductive technology is available throughout most of the civilized world, and the practice is largely different from that used during the early days. Refinements in laboratory technology and clinical practice have allowed IVF to evolve into...

Journal: :Hong Kong medical journal = Xianggang yi xue za zhi 2003
N Hussey R J Norman

Pre-implantation genetic diagnosis (PGD) was first pioneered at Hammersmith Hospital, London, United Kingdom, in 1989 and allows the genetic sampling and testing of the early human embryo prior to being transferred to the uterus to start a pregnancy. Although occasionally controversial, PGD is now well established in several countries and in vitro fertilisation (IVF) centres around the world. I...

2016
Martine Van Selm Christianne Verhaak Gwendolyn Woldringh

A content analysis of chat utterances generated by in vitro fertilization (IVF) patients and healthcare professionals revealed that most chat is about the treatment itself and not about childlessness; 56% discloses psychological aspects, 27% physical aspects, and 17% social aspects of the treatment; and that accounts of both external and internal coping behaviors could be identified.

2014
Laura van Loendersloot S. Repping P.M.M. Bossuyt F. van der Veen M. van Wely

Since the introduction of in vitro fertilization (IVF) in 1978, over five million babies have been born worldwide using IVF. Contrary to the perception of many, IVF does not guarantee success. Almost 50% of couples that start IVF will remain childless, even if they undergo multiple IVF cycles. The decision to start or pursue with IVF is challenging due to the high cost, the burden of the treatm...

Journal: :Twin research and human genetics : the official journal of the International Society for Twin Studies 2007
Jian-Ping Gan Zhong-Hua Wu Zhi-Ming Tu Jian Zheng

Based on the birth record data from the National Vital Statistics in the 1990 Census of China, the present study analyzed the differences between urban and rural areas on monozygotic (MZ) and dizygotic (DZ) twin rates by maternal age in 1989. The twins by zygosity were calculated with Weinberg's differential method. Results show that the MZ and DZ twinning rates in China were associated with ma...

Journal: :Human molecular genetics 2010
Patricia Fauque Marie-Anne Ripoche Jörg Tost Laurent Journot Anne Gabory Florence Busato Anne Le Digarcher Françoise Mondon Ivo Gut Pierre Jouannet Daniel Vaiman Luisa Dandolo Hélène Jammes

Genomic imprinting regulates the expression of a group of genes monoallelically expressed in a parent-of-origin specific manner. Allele-specific DNA methylation occurs at differentially methylated regions (DMRs) of these genes. We have previously shown that in vitro fertilization and embryo culture result in methylation defects at the imprinted H19-Igf2 locus at the blastocyst stage. The curren...

Journal: :Journal of pineal research 2000
B Ishizuka Y Kuribayashi K Murai A Amemiya M T Itoh

To examine the effect of melatonin on in vitro fertilization and embryonic development, mouse embryos after insemination in vitro were cultured in a physiological medium with or without melatonin. Melatonin increased the fertilization rate significantly at a concentration between 10(-6) and 10(-4) M (27.6 vs. 43.9 or 40.4%, P < 0.01). Furthermore, a significant increase in the rate of embryos r...

Amin M Babaei M Houshyari A, Najafi A Najafi Gh Roshangar L, Sadrkhanlu RA

Background: The purpose of this study was to evaluate the effect of Ruta graveolens (RG) Aqueous Extract on in vitro fertilization (IVF) rate and embryo development. RG, commonly called sudab or rue, has been known as a medical plant since ancient times. Recently some medicinal properties were reported for RG such as: antioxidant, anti-inflammatory, anti-tumor, anti-androgenic, anti- conceptive...

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