Common nanoparticle has subtle effects on oxidative stress genes

A nanoparticle commonly used in food, cosmetics, sunscreen and other products can have subtle effects on the activity of genes expressing enzymes that address oxidative stress inside two types of cells. While the titanium ...

Rush hour pollution may be more dangerous than you think

The first in-car measurements of exposure to pollutants that cause oxidative stress during rush hour commutes has turned up potentially alarming results. The levels of some forms of harmful particulate matter inside car cabins ...

Unsaturated fatty acids play a role in winter hibernation

The duration of the periods for which animals hibernate in winter is affected by the quantity of unsaturated fatty acids that they absorb from their food. How animals react to an excess – or a lack – of unsaturated fatty ...

Healing kidneys with nanotechnology

Each year, there are some 13.3 million new cases of acute kidney injury (AKI), a serious affliction. Formerly known as acute renal failure, the ailment produces a rapid buildup of nitrogenous wastes and decreases urine output, ...

Scientists discover how mitochondria import antioxidants

Many of the processes that keep us alive also put us at risk. The energy-producing chemical reactions in our cells, for example, also produce free radicals—unstable molecules that steal electrons from other molecules. When ...

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