Genes linked to sex ratio and male fertility in mice
Researchers find genes that help maintain the 50-50 balance between male and female offspring in mice — and that have major implications for male infertility.
Read morePregnancy and Childbirth
Stem cell study offers new way to study early development and pregnancy
For the first time, researchers have created mouse blastocyst-like structures, or 'blastoids,' from a single cultured cell. The work could help advance research into development as well as inform issues around pregnancy, infertility, or health problems later in the offspring's life.
Read moreDid early mammals turn to night life to protect their sperm?
Humans are diurnal — we are active in the day and sleep at night. But diurnalism is by far the exception rather the rule in mammals. About 250-230 million years ago, the mammalian ancestors, called the therapsids, became exclusively nocturnal, and stayed so until the demise of the dinosaurs 66 million years ago.
Read moreStress during pregnancy may affect baby's sex, risk of preterm birth
A new study has identified markers of maternal stress — both physical and psychological — that may influence a baby's sex and the likelihood of preterm birth.
Read morePotential therapy to treat detrimental effects of marijuana
A new study using a preclinical animal model suggests that prenatal exposure to THC, the psychoactive component of cannabis, makes the brain's dopamine neurons (an integral component of the reward system) hyperactive and increases sensitivity to the behavioral effects of THC during pre-adolescence.
Read morePlacenta transit of an environmental estrogen
The human fetus is considered to be particularly sensitive to environmental contaminants. A team has now been able to demonstrate for the first time how the widespread food estrogen zearalenone behaves in the womb. Using a new analytical method, it was shown that the xenoestrogen migrates through the placenta and is partially converted to other harmful substances.
Read moreMaternal obesity speeds up aging in offspring
The effects of maternal obesity even pass across generations to offspring, accelerating the rate of aging of metabolic problems that occur in normal life.
Read moreDietary supplement from tomatoes discovered to boost sperm quality
Sperm quality can be improved with a simple diet supplement containing a compound found in cooked tomatoes, according to new research.
Read moreSpecial occasion drinking during pregnancy may cause harm
If you thought a glass or two of alcohol on special occasions was safe during pregnancy, think again. Research shows even small amounts of alcohol consumed during pregnancy can cause insulin-resistance, which increases the likelihood of diabetes, in male rat offspring.
Read moreMolecular mechanisms behind women's biological clock
Throughout life, women's fertility curve goes up and down, and researchers have now shown why. The results might have impact on fertility counseling and in the longer term for treatment of infertility.
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