Tag » toxicology

Microcosms for Nano
February 12, 2015

Microcosms for Nano

Small particles affect the life of cells

Many of the products we buy — sunscreen, stain- and odor-resistant clothing, fuel additives, sports equipment — contain nanoparticles that have been designed for a purpose. These materials (about 100,000 times smaller than the width of a human hair) can block sunlight, prevent microbial growth, lubricate surfaces and confer tensile strength. However, in some cases, […]

From Zebrafish to You
July 2, 2013

From Zebrafish to You

Popular aquarium fish provides a window on environmental chemicals

On average, an individual encounters about 80,000 synthetic chemicals every day. So says Robert Tanguay, a toxicologist at Oregon State University. Many of those chemicals — from fire retardants in fabrics to drying agents in paint — are untested for toxicity to people. Tanguay and his research team are working to change that. Their results […]

After the Spill
January 5, 2011

After the Spill

Sarah Allan is tracking toxins in the Gulf of Mexico

The 2010 oil spill in the Gulf of Mexico brought up bad memories for Sarah Allan. The Oregon State University Ph.D. student, who grew up in southeast Alaska, was a child in 1988, when the Exxon Valdez struck a reef and dumped millions of gallons of crude into another rich marine ecosystem, Prince William Sound. […]

February 22, 2010

Regulating Immunity: Toxicologists seek novel gene therapies

Dioxin, the chemical pollutant made infamous by Vietnam-era defoliant Agent Orange, has long been known to suppress immune function in humans and other animals. Surprisingly, this dangerous side effect has a scientific silver lining. While studying the toxin’s health effects, researchers discovered the genetic pathway to immune system malfunction. For people who would actually benefit […]

February 24, 2009

Living Downwind

By collecting and testing the toxicity of particles in Northwest air samples, OSU Ph.D. student Julie Layshock is shedding light on the relative health threat posed by long-distance air pollution.

Movie maker
September 11, 2008

Movie maker

Zebrafish star in amazing tale

Kate Saili’s films won’t show in theaters any time soon, but they do feature zebrafish, a rising star in molecular biology, in a dramatic role — regenerating tissues that have been injured. Saili, who grew up in Kalispell, Montana, studies the effect of nanomaterials on inflammation. She uses transgenic zebrafish whose white blood cells fluoresce […]