Medical research

A non-hormonal pill could soon expand men's birth control options

Women have many choices for birth control, ranging from pills to patches to intrauterine devices, and partly as a result, they bear most of the burden of preventing pregnancy. But men's birth control options—and, therefore, ...

Ophthalmology

Lab-grown retinas explain why people see colors dogs can't

With human retinas grown in a petri dish, researchers discovered how an offshoot of vitamin A generates the specialized cells that enable people to see millions of colors, an ability that dogs, cats, and other mammals do ...

Immunology

Scientists reveal how vitamin A enters immune cells in the gut

Immunologists and geneticists at UT Southwestern Medical Center have discovered how vitamin A enters immune cells in the intestines—findings that could offer insight to treat digestive diseases and perhaps help improve ...

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