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Image of the Day
Image of the Day: Sperm Protectors
Staff | Aug 18, 2017
Among their many functions, macrophages in mouse testes guard sperm against attacks by other immune cells.
Week in Review: February 22–26
Jef Akst | Feb 26, 2016
Questions about how
evolves; spermatids in a dish; fighting bacteria with virus-like molecule; what drives metastasis; antibodies fight Ebola in monkeys
Toward Making Sperm in the Lab
Rina Shaikh-Lesko | Feb 25, 2016
Researchers devise a technique for creating gametes from murine embryonic stem cells.
Surrogate Genes Enable Reproduction
Jyoti Madhusoodanan | Jan 28, 2016
Increasing the expression of two genes from non-Y chromosomes restores spermatogenesis in male mice that lack Y chromosomes.
Sperm From Ovaries
Anna Azvolinsky | Jun 11, 2015
With the deletion of a single gene, female Japanese rice fish can produce sperm.
Sperm Stem Cell Maintenance
Jenny Rood | Mar 2, 2015
A missing transcription factor puts an early end to sperm production in mice.
Fat Dads’ Epigenetic Legacy
Kate Yandell | Feb 7, 2013
Children with obese fathers show epigenetic changes that may affect their health.
Creating Sperm from Skin
Hayley Dunning | Aug 30, 2012
Researchers create early stage sperm cells from induced pluripotent stem cells, raising hopes that infertile men could be fathers.
Hope for Male Contraception
Sabrina Richards | Aug 16, 2012
A small molecule that inhibits a protein important for chromatin organization can cause reversible sterility in male mice.