A total of 415 fat tailed ewes were randomly assigned to two groups to assess the effect of duration of melengestrol acetate (MGA) (9 versus 12d) administration on reproductive parameters associated with laparoscopic artificial insemination. At the end of MGA treatment, ewes in each group were subdivided and inseminated with one of two different insemination doses (10×10(7) or 20×10(7) sperm pe...

Sperm transfer through the epididymis, a prerequisite for insemination of cat fleas, Ctenocephalides felis (Bouché) was stimulated by exposure of unfed male fleas to juvenile hormone III residues for 3 d at 25 degrees C or exposure of unfed fleas to 37 degrees C for 6 d. Sperm transfer was completed at least three times faster in unfed males held at 37 degrees C than in those held at 25 degrees...

A short review stating levels of evidence is given regarding the indications for IUI and the cost-effectiveness of (stimulated) IUI compared with that of IVF. It is concluded that IUI in natural cycles should be applied in couples with cervical hostility, might be applied in couples with a moderate semen factor and should not be applied in couples with unexplained subfertility. Intrauterine ins...

Gonorrhoea is now pandemic throughout the world with about 150 million cases occurring annually. In the United States alone, the annual incidence of gonorrhoea has been estimated by the Public Health Service at 21 million, and this sharp increase has resulted in many physicians becoming reacquainted with this interesting and complex disease from both the clinical and the epidemiological viewpoi...

OBJECTIVE To evaluate the impact of intrauterine insemination timing performed 24 or 36 h later following ovulation trigger on clinical pregnancy rate during ovulation induction with clomiphene citrate among infertile women was the objective of this study. METHODS The medical records of 280 infertile patients who have underwent ovulation induction by using clomiphene citrate have been evaluat...

The impact of intracytoplasmic sperm injection (ICSI) on cryopreserved zygotes and embryos was evaluated by comparing embryo survival and implantation between embryos derived from ICSI and those derived from standard insemination procedures. The study included patients whose excess zygotes and embryos were cryopreserved between September 1993 and December 1994 and who subsequently underwent a f...

BACKGROUND The aim of this study was to investigate whether a pre-incubation time between oocyte retrieval and insemination or injection had any effect on the success rate of IVF or intracytoplasmic sperm injection (ICSI). Based on previously published data, many laboratories retain a time interval of several hours between oocyte retrieval and insemination/injection. In our setting, inseminatio...

BACKGROUND Hashimoto's thyroiditis is the most common endocrinopathy in premenopausal women, and is associated with various gynecological problems, including recurrent miscarriage and unexplained infertility. A possible influence of Hashimoto's thyroiditis on the success of intrauterine insemination seems likely, but has not been evaluated as yet. Therefore, the aim of our study was to retrospe...

Assisted reproduction is a relatively recent phenomenon. Aside from a few isolated examples, which apparently did not raise legal issues, assisted reproduction did not really come into its own until the practice of artificial insemination became common in the mid-twentieth century. Perhaps the earliest recorded example of a gestational agreement (surrogate mother) took place in biblical times.1...