Fertility
نویسندگان
چکیده
منابع مشابه
Fertility preservation 3 Fertility preservation for age-related fertility decline
Cryopreservation of eggs or ovarian tissue to preserve fertility for patients with cancer has been studied since 1994 with R G Gosden’s paper describing restoration of fertility in oophorectomised sheep, and for decades previously by others in smaller mammals. Clinically this approach has shown great success. Many healthy children have been born from eggs cryopreserved with the Kuwayama egg vit...
متن کاملIncreased male fertility using fertility-related biomarkers
Conventional semen analyses are used to evaluate male factor fertility/infertility in humans and other animals. However, their clinical value remains controversial. Therefore, new tools that more accurately assess male fertility based on sperm function and fertilization mechanism are of interest worldwide. While protein markers in spermatozoa that might help differentiate fertile and infertile ...
متن کاملBoar fertility
The male part of fertility traits in pigs has not often been analysed because of missing semen quality data in the case of natural mating. With increasing AI in pigs more data about semen quality of boars is available, so its influence on litter size can be analysed on bigger data sets. With advanced recording systems, single matings are recorded and important economic traits like mating succes...
متن کاملFertility preservation
Fertility preservation procedures are indicated when it's predicted that there will be exposure to a cause of infertility. Mainly cancer treatment, such as chemotherapy, radiation, and surgery, may destroy a person's ability to have children later in life, and oncofertility research focuses on increasing fertility preservation options. Oncofertility is a subfield that bridges oncology and repro...
متن کاملOptimal Fertility
In this paper we challenge the wide-spread notion that replacement level fertility is the most desirable level of fertility both for countries currently above and below this level. We first discuss possible alternative criteria for choosing one fertility level over another. Dismissing for the time being the two extreme criteria of ever increasing national strength (which would imply unlimited p...
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ژورنال
عنوان ژورنال: Nature
سال: 2004
ISSN: 0028-0836,1476-4679
DOI: 10.1038/432037a