pigment, disease & medicine
Colorblindness Study Reveals Unexpected Way to Make Blood Vessels
Colorblindness Study Reveals Unexpected Way to Make Blood Vessels
Ashley Yeager | May 1, 2018
Researchers stumbled across the connection while searching for ways to reduce vision problems in people with achromatopsia.
Birth Defects Linked to Increased Risk of Childhood Cancer
Birth Defects Linked to Increased Risk of Childhood Cancer
Jim Daley | Apr 15, 2018
Certain non-chromosomal defects are strongly associated with specific childhood cancers.
Image of the Day: Living Color
Image of the Day: Living Color
The Scientist Staff | Mar 8, 2018
Biodegradable pigments could be custom-grown by bacteria in the future, say researchers.  
Hungry Macrophages Keep Tattoos on Mice’s Skin
Hungry Macrophages Keep Tattoos on Mice’s Skin
Diana Kwon | Mar 7, 2018
A new study reveals that a constant stream of ink-gobbling immune cells helps hold tattoos in place.
Zika Linked to More Neurological Problems in Adults
Zika Linked to More Neurological Problems in Adults
Kerry Grens | Aug 14, 2017
A review of several dozen hospitalized patients in Brazil finds neurological conditions, including inflammation of the brain and spinal cord, in addition to Guillain-Barre syndrome.
Image of the day: Stylish Zebrafish
Image of the day: Stylish Zebrafish
The Scientist Staff | May 3, 2017
Zebrafish, Danio rerio, develop patterns of colorful stripes on their skin thanks to pigmented cells—dark melanophores, orange-gold xanthophores, and iridescent iridophores. 
Infographic: How the Zebrafish Got Its Stripes
Infographic: How the Zebrafish Got Its Stripes
Catherine Offord | Apr 30, 2017
Immune cells called macrophages shuttle cellular messages in the skin.
“Redhead” Gene Variant Boosts Melanoma Risk
“Redhead” Gene Variant Boosts Melanoma Risk
Tanya Lewis | Jul 12, 2016
People without red hair who possess the variant are also more likely to develop this form of skin cancer, researchers report.
Experimental Ebola Drug Shows Promise
Experimental Ebola Drug Shows Promise
Tracy Vence | Sep 2, 2014
ZMapp effectively rescued macaques from Ebola in a small trial, but it could be several months before supplies of the drug meet the growing human demand for it.
WHO OKs Experimental Ebola Drugs
WHO OKs Experimental Ebola Drugs
Tracy Vence | Aug 13, 2014
But biotech firms’ supplies are dwindling.