TITLE

Eggs urge sperm to swim up and see them

AUTHOR(S)
Vines, Gail
PUB. DATE
April 1991
SOURCE
New Scientist;4/13/91, Vol. 130 Issue 1764, p21
SOURCE TYPE
Periodical
DOC. TYPE
Article
ABSTRACT
Comments on the first evidence of 'sperm-egg communication' in mammals which has been claimed by biologists in the US and Israel. Release of a chemical by eggs which encourages the sperm to swim towards them; Study by Dina Ralt at the Weizmann Institute of Science in Rehovot, Israel and others; Follicular fluid; In vitro fertilization; Variance in quality of sperm.
ACCESSION #
9105132975

 

Related Articles

  • Cumulative pregnancy rate following IVF and intracytoplasmatic sperm injection with ejaculated and testicular spermatozoa. Shulman, Adrian; Bider, David; Levron, Jacob; Rabinovitz, Yaron; Seidman, Daniel; Maschiach, Shlomo; Dor, Jehoshua; Raviv, Gil; Madgar, Ygal; Laor, Arie; Menashe, Kfir // Reproductive BioMedicine Online;Mar/Apr2002, Vol. 4 Issue 2, p151 

    Presents information on a study which calculated the cumulative pregnancy rates of IVF cycles with IVF with intracytoplasmic sperm injection using ejaculated or testicular spermatozoa. Materials and methodology of the study; Results and discussion of the study. INSET: Cloning for stem cell...

  • RELACI�N ENTRE LAS CARACTER�STICAS ESPERM�TICAS POSCAPACITACI�N Y LA FERTILIZACI�N OOCITARIA HUMANA EN LA T�CNICA DE FERTILIZACI�N IN VITRO. Yamileth Motato, M.; Saavedra-Saavedra, Jaime; Moyano, Martha N. // Revista Colombiana de Obstetricia y Ginecologia;2010, Vol. 61 Issue 3, p214 

    Objective: establishing the relationship between post-capacitated sperm characteristics and donated fertilized MII (morphologically mature) oocytes when using the in vitro fertilization (IVF) technique. Methodology: a descriptive cross-sectional study was carried out between January 2003 and...

  • The role of sperm aneuploidy as a predictor of the success of intracytoplasmic sperm injection? J.D.M. Nicopoullos; C. Gilling-Smith; P.A. Almeida; S. Homa; L. Nice; H. Tempest; J.W.A. Ramsay // Human Reproduction;Feb2008, Vol. 23 Issue 2, p240 

    BACKGROUND We present the first powered prospective study to assess whether sperm aneuploidy can predict the outcome of ICSI. METHODS Our null hypothesis was that aneuploidy rates (AR) are identical in men who achieve successful (Group A) and unsuccessful (Group B) ICSI outcome. A power...

  • IMSI IN NATURAL CYCLE. PRE CONGRESS COURSE: MILD STIMULATION. Sanchez, P.; Sanchez, F.; Migueles, B.; Hebles, M.; Dorado, M.; Gonzalez, M.; Aguilera, L. // Reproductive BioMedicine Online (Reproductive Healthcare Limited;Oct2010 S3 Supplemen, Vol. 20, pS18 

    Despite the fact that the first succesful pregnancy by in-vitro fertilization (IVF) was achieved with natural cycle IVF, this modality has since been used relatively infrequently due to the lower pregnancy rates yielded through traditional natural cycle IVF techniques. However, the development...

  • PRE-SELECTION OF INDIVIDUAL SPERM CELLS FOR IVF/ICSI BASED ON HIGH-POWER REAL-TIME MORPHOLOGY (IMSI). Bartoov, B.; Berkovitz, A.; Ellenbogen, A.; Feldberg, D.; Eltes, F. // Reproductive BioMedicine Online (Reproductive Healthcare Limited;Oct2010 S3 Supplemen, Vol. 20, pS25 

    For medical, ethical, religious and legal reasons it is essential to improve the IVF-ICSI outcome by selecting gametes with high developmental quality. We developed a method of Sperm Functional Morphology, which is based on high power light microscopy, real time observation, motile sperm...

  • ACCURACY OF HOFFMAN-BASED OPTIC SYSTEM FOR THE SELECTION OF MORPHOLOGICALLY NORMAL SPERMATOZOA IN ASSISTED REPRODUCTION TECHNIQUES. Rovira, S.; Cairo, O.; Brassesco, A.; Del Rio, F.; Rodriguez, M.; Prats, L.; Brassesco, M. // Reproductive BioMedicine Online (Reproductive Healthcare Limited;Oct2010 S3 Supplemen, Vol. 20, pS32 

    Introduction: When an ICSI is performed, it is expected to select the maximum number of good quality spermatozoa. The objective of this study was to assess the accuracy for the selection of "normal" spermatozoa of a standard Hoffman-based optic system, when compared with a high magnification...

  • Immediate Preparation of Sperm Sample May Increase Sperm DNA Integrity.  // Fertility Weekly;11/12/2007, p5 

    The article reports on the research that addressed the influence of age related sperm DNA integrity on sperm survival. According to the researchers, to overcome the negative effects of extended incubation, immediate preparation of semen samples must be done before their use in assisted...

  • Global Sperm DNA Methylation on IVF Results.  // Fertility Weekly;6/20/2005, p8 

    The article cites a study regarding the influence of DNA methylation rates on in vitro fertilization results, conducted by researchers M. Benchaib and colleagues, and published in the June 2005 issue of the journal "Human Reproduction." DNA methylation level in human sperm could represent a new...

  • Application of intracytoplasmic sperm injection in assisted reproductive technologies. Palermo, Gianpiero D; Takeuchi, T; Neri, QV; Katagiri, Y; Veeck, LL; Rosenwaks, Z // Reproductive BioMedicine Online (Reproductive Healthcare Limited;Jun2003, Vol. 6 Issue 4, p456 

    Presents a study that investigated the application of intracytoplasmic sperm injection (ICSI) in assisted reproductive technologies. Background on the development of in vitro fertilization and ICSI; Application of ICSI for the treatment of azoospermic patients; Materials and methods used in the...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics