Balanced translocation carriers have a high risk for producing chromosomally unbalanced gametes and present with infertility, repeated spontaneous abortions and unbalanced offspring.
The indications for oocyte donation were failed IVF cycles with own oocytes, low ovarian reserve, poor oocyte quality, genetic or chromosomal abnormalities transmissible to offspring and spontaneous or iatrogenic menopause.
It is quite plausible that this research will not only enhance our ability to address infertility, but will also help us to understand better some of the causes of abnormal offspring in spontaneous conceptions occurring among the general population.
The nonpartisan, nonviolent assembly movement is the offspring of the spontaneous street demonstrations that forced Fernando de la Rúa to resign the presidency on Dec. 20.
To assess general motor activity under nonstress conditions, we recorded spontaneous motor activity of male offspring.
In the majority of spontaneous and therapeutic abortions, the offspring status was unknown.
As copulation triggers ovulation in induced ovulators, the male that successfully induces ovulation may sire a greater proportion of the offspring [35], whereas for spontaneous ovulators, the male copulating closest to ovulation generally sires most of her offspring [36].
We did not find an association between paternal serum TCDD level and spontaneous abortion or sex ratio of offspring in this population.
When tested 2 months later, at 7 months of age, the offspring exhibited changes in spontaneous behavior and cholinergic muscarinic receptor density in the cerebral cortex, which led to impairment in learning and memory (Eriksson and Talts 2000).
CPEE resulted in ethanol neurobehavioral teratogenicity in offspring, as demonstrated by increased spontaneous locomotor activity at postnatal day (PD) 10 and decreased brain weight at euthanasia (PD 150 200).
