Victoria R Burruel

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Because in the mouse some structurally abnormal spermatozoa can penetrate oocytes, we decided to determine whether mouse oocytes fertilized by spermatozoa with grossly misshapen heads are able to develop normally. We injected such spermatozoa from BALB/c mice individually into mature oocytes of hybrid mice B6D2F1. Eighty to ninety percent of the oocytes(More)
Our objective was to determine whether oxidative damage of rhesus macaque sperm induced by reactive oxygen species (ROS) in vitro would affect embryo development following intracytoplasmic sperm injection (ICSI) of metaphase II (MII) oocytes. Fresh rhesus macaque spermatozoa were treated with ROS as follows: 1 mM xanthine and 0.1 U/ml xanthine oxidase (XXO)(More)
In this study, the mouse was used to evaluate paternal germline exposure to the organophosphate methamidophos for its potential to produce adverse effects on spermatozoa and in the offspring. There have been reports that organophosphate exposure can increase abnormal sperm morphology in mice. However, effects transmitted to the offspring following paternal(More)
Human embryos resulting from abnormal early cleavage can result in aneuploidy and failure to develop normally to the blastocyst stage. The nature of paternal influence on early embryo development has not been directly demonstrated although many studies have suggested effects from spermatozoal chromatin packaging, DNA damage, centriolar and mitotic spindle(More)
Desiccation provides a novel spermatozoal preservation technique because it eliminates the need to store spermatozoa in liquid nitrogen, resulting in decreased opportunities for cross-contamination of samples and lower costs of spermatozoal banking, storage, and shipping. The objective of this study was to desiccate rhesus macaque spermatozoa and to(More)
OBJECTIVE To examine the effect of pituitary suppression and the women's age on embryo viability and uterine receptivity. DESIGN Retrospective analysis of 394 embryo transfers (ET) after in vitro fertilization (IVF). SETTING Community hospital IVF program from 1986 to 1990. PATIENTS Three groups were studied: women less than 40 years with pituitary(More)
Previous studies suggest that the spermatozoa from acutely irradiated male mice exhibit a reduced fertilization rate in vitro with the maximum decrease occurring for spermatozoa produced 6 weeks after irradiation (Y. Matsuda et al., Mutation Res. 142 (1985) 59-63). We have found that spermatozoa from unirradiated F1 males conceived 6 weeks after paternal F0(More)
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