Women’s Cervical Mucus Prefers Some Sperm Over Others 
Women’s Cervical Mucus Prefers Some Sperm Over Others 
In human male-female pairs with a less similar suite of genes for human leukocyte antigens, sperm fare better when exposed to cervical mucus.
Women’s Cervical Mucus Prefers Some Sperm Over Others 
Women’s Cervical Mucus Prefers Some Sperm Over Others 

In human male-female pairs with a less similar suite of genes for human leukocyte antigens, sperm fare better when exposed to cervical mucus.

In human male-female pairs with a less similar suite of genes for human leukocyte antigens, sperm fare better when exposed to cervical mucus.

fertility
Two Studies Question Function of Bone Hormone Osteocalcin
Two Studies Question Function of Bone Hormone Osteocalcin
Ruth Williams | May 29, 2020
Independently produced knockout mouse strains fail to find evidence of the bone protein’s endocrine functions, and divide researchers’ opinions.
Single-Cell Analysis of Ovarian Cortex Fails to Find Stem Cells
Single-Cell Analysis of Ovarian Cortex Fails to Find Stem Cells
Amy Schleunes | Mar 6, 2020
The controversial oogonial stem cells eluded a team of Swedish researchers who mapped high-quality tissue samples of the human ovary, prompting more questions about the cells’ existence.  
Baby Born from Egg that Was Matured and Frozen in the Lab
Baby Born from Egg that Was Matured and Frozen in the Lab
Catherine Offord | Feb 19, 2020
A cancer patient who underwent the new fertility preservation procedure successfully gave birth five years after her immature eggs were collected.
Image of the Day: Old Ovaries
Image of the Day: Old Ovaries
Amy Schleunes | Feb 6, 2020
Oxidative stress associated with aging damages ovarian cells in both humans and nonhuman primates.
Aneuploidy Could Explain Variability in Female Fertility: Study
Aneuploidy Could Explain Variability in Female Fertility: Study
Catherine Offord | Jan 13, 2020
Eggs from girls and from older women show higher rates of errors in chromosome number.
Chemist Behind the Combined Oral Contraceptive Dies at 102
Chemist Behind the Combined Oral Contraceptive Dies at 102
Catherine Offord | Jul 2, 2019
George Rosenkranz was part of a team in Mexico City that first synthesized norethindrone in 1951.

Does Sharing the Womb with a Brother Affect Girls?
Does Sharing the Womb with a Brother Affect Girls?
Ashley Yeager | Mar 19, 2019
A study links having a male twin with women’s educational, financial, and childbearing decisions. Researchers suspect prenatal exposure to testosterone may play a role.
First Child Delivered from Womb Transplanted from Dead Donor
First Child Delivered from Womb Transplanted from Dead Donor
Carolyn Wilke | Dec 5, 2018
The girl was born in Brazil in December 2017.
Blood Test Predicts Pregnancy Due Date
Blood Test Predicts Pregnancy Due Date
Kerry Grens | Jun 7, 2018
A small study based on circulating RNA in the blood of moms-to-be describes a technique that could be used to help predict who’s most at risk of preterm labor.