Obstetrics & gynaecology

Preconception zinc deficiency could spell bad news for fertility

An estimated 10 percent of couples in the U.S. struggle with infertility. While a variety of factors can make it difficult for some people to get pregnant, ovulation disorders are a leading cause of female infertility. Now, ...

Obstetrics & gynaecology

Like babies, eggs send signals when 'hungry'

In humans and other mammals, the female reproductive cells - the eggs or oocytes - need nourishment in order to grow and remain fertile. It is known that the egg gets its food from little arm-like feeding tubes (called filopodia) ...

Genetics

Keeping egg cells fresh with epigenetics

Keeping egg cells in stasis during childhood is a key part of female fertility. New research published today in Nature Structural and Molecular Biology sheds some light on the role of epigenetics in placing egg cells into ...

Diseases, Conditions, Syndromes

Female gene changes post-sex may lead to mosquito controls

Genetic cues from male Aedes aegypti mosquitoes passed on during sex affect which genes are turned on or off in a females' reproductive tract post-mating, including genes related to blood feeding, egg development and immune ...

Medical research

Zinc deficiency before conception disrupts fetal development

Female mice deprived of dietary zinc for a relatively short time before conception experienced fertility and pregnancy problems and had smaller, less-developed fetuses than mice that ingested zinc during the same times, according ...

Psychology & Psychiatry

Test tube children develop mentally normal

Whether a child is conceived naturally or in a Petri dish in an incubator has no bearing at all on the child's mental health. However, researchers have identified a small but increased risk of developing a mental disorder ...

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