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M Taymor

Publications and source records attributed to M Taymor.

6 recordsLinked to original sources
PubMed1988

Comparison of the in vitro fertilization rate by human sperm capacitated by multiple-tube swim-up and Percoll gradient centrifugation.

Two sperm preparation methods, a multiple-tube swim-up and Percoll-gradient centrifugation, were employed in our human in vitro fertilization program. The fertilization rate of these two sperm preparation methods was compared when they were employed in semen samples of less than 60 million motile sperm/ml. The results described here suggest that both of these methods gave a similar fertilization rate in these semen samples, i.e., 72 +/- 8% for the Percoll-gradient centrifugation method and 66 +/- 8% for the multiple-tube swim-up method.

Centrifugation, Density Gradient↗
PubMed1987

In vitro fertilization: sonographic perspective.

The applications of sonography were evaluated in 220 patients undergoing 354 in vitro fertilization cycles. A baseline sonogram demonstrated adnexal abnormalities in 10.7% of cycles. Serial sonograms were beneficial in monitoring follicular development. Oocyte harvest was canceled in 18.4% of cycles owing to inadequate follicle growth progression, as demonstrated by ultrasound. An additional 9% of cycles were canceled owing to the development of a single lead follicle. Six percent of cycles were accompanied by a spontaneous rise in serum luteinizing hormone values, necessitating sonographic correlation to exclude ovulation.

Female↗
PubMed1987

An increase in in vitro fertilization ability of low-density human sperm capacitated by multiple-tube swim-up.

Comparison was made of the efficacy of multiple-tube swim-up (MT-SU) and single-tube swim-up (ST-SU) preparations on inducing human sperm fertilization ability in semen samples of less than 60 million motile sperm/ml. Two parallel groups of in vitro fertilization (IVF) patients possessing sperm density of this category had their sperm capacitated by MT-SU or ST-SU. The MT-SU patients' sperm fertilized 71 +/- 6.0% of eggs retrieved in comparison to 39 +/- 7.9% in the parallel ST-SU patients (P less than 0.001). Similarly, MT-SU increased the rate of human sperm penetration into zona-free hamster eggs. The increased fertilization rate of MT-SU sperm was not from acceleration of the acrosome reaction, but may be attributed to the higher efficiency of MT-SU in removing antifertility factors present in the seminal plasma from sperm.

Acrosome↗
PubMed1983

The diagnosis of ovarian hyperstimulation (OHS): the impact of ultrasound.

Eighty cycles induced by human menopausal gonadotropins in 45 women were studied with serial ultrasound examinations. The incidence of ovarian hyperstimulation (OHS) was 44%, considerably higher than in other series using similar induction protocols. This was probably due to the superior ability of ultrasound to detect ovarian enlargement and the withholding of human chorionic gonadotropin until at least one follicle had reached a minimum size of 15 mm. No difference was found between the mean urinary estrogen levels of those in whom mild or moderate OHS developed and those in whom it did not. It is concluded that the development of OHS is a frequent but acceptable result of ovulation induction.

Amenorrhea↗