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  • Book
    edited by Khaldoun Sharif, Arri Coomarasamy.
    Summary: Assisted reproduction techniques (ART), in particular in-vitro fertilization and intra-cytoplasmic sperm injection, are the most advanced forms of infertility treatment. They involve numerous counseling, medical, surgical and laboratory-based steps. At each step various problems and complications could be encountered that challenge even the most experienced ART practitioners. Moreover, patients with complex medical disorders may require ART, presenting further challenges. Assisted Reproduction Techniques will stimulate resourceful thinking in the ART practitioner when faced with these challenges. It outlines various management options, the reasoning behind them, and the evidence on which they are based to enable the practitioner to choose the most suitable solution for the needs of each patient.

    Contents:
    Section One : Counseling and preparation
    Section Two : Pituitary suppression and ovarian stimulation phase
    Section Three : Oocyte retrieval
    Section Four : Embryo transfer
    Section Five : The luteal phase
    Section Six : The ART laboratory
    Section Seven : The male patient.
    Digital Access Wiley 2021
  • Journal
    Print [v.] 1-
  • Article
    Pinney RJ.
    Microbios. 1977;19(75):55-66.
    Minimum satisfactory concentrations of thymine and thymidine were determined for the growth of a high thymine-requirng (thy) mutant to Escherichia coli strain J5-3. Cultures were then grown in the presence of these concentrations of non-radioactive ('cold') pyrimidine together with 5 microCi/ml [methyl-3H)thymine, or [methyl-3H)thymidine (specific activities 5 Ci/m mole), and the uptake of radioactivity into ice cold trichloroacetic acid insoluble material determined. By far the most efficient labelling system was obtained if the label was supplied as radioactive thymidine and growth requirements satisfied by thymine alone. The addition of deoxyadenosine to the labelled thymidine/unlabelled thymine system dramatically reduced uptake of label. The addition of radioactive thymine with either thymine or thymidine to ensure satisfactory growth gave poor labelling. Using the [methyl-3H] thymidine/thymine system it was possible to increase the concentration of thymine from 8 to 64 microgram/ml with only a 25% reduction in label uptake after a 2 h period. The same system was also shown to be most efficient for labelling a thy derivative of another K12 strain, a thymine low-requiring (tir) K12 strain, a thy mutant of Klebsiella aerogenes 418 and a tir derivative of Salmonella typhimurium LT2.
    Digital Access Access Options