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The chemist examined the role of activated oxygen molecules in biological processes.

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image: Caught in the Act

Caught in the Act

By Devika G. Bansal | November 1, 2017

Molecular probes for imaging in live animals

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Mouse experiments indicate that, contrary to observations in pregnant women, reactive oxygen species contribute to normal placental development.

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image: Antioxidants Again Linked to Cancer’s Spread

Antioxidants Again Linked to Cancer’s Spread

By Anna Azvolinsky | April 13, 2016

Certain diabetes drugs with antioxidant properties promote metastasis in mice with existing tumors, researchers report.

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image: New Route to Hearing Loss Mapped

New Route to Hearing Loss Mapped

By Kerry Grens | November 5, 2015

Deficiency in a protein called pejvakin makes inner ear cells more vulnerable to sound, unable to brace themselves against oxidative stress stimulated by noise. 

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image: Antioxidants Facilitate Melanoma Metastasis

Antioxidants Facilitate Melanoma Metastasis

By Anna Azvolinsky | October 7, 2015

Two compounds boost the ability of melanoma cells to invade other tissues in mice, providing additional evidence that antioxidants can be beneficial to malignant cells as well as healthy ones.

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image: ROS Can Shorten or Lengthen Life

ROS Can Shorten or Lengthen Life

By Kerry Grens | February 13, 2015

Reactive oxygen species have opposing effects on roundworm longevity depending on whether these molecules are in the mitochondria or the cytoplasm.

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image: The Energizer

The Energizer

By Megan Scudellari | May 1, 2014

György Hajnóczky uncovers the chemical and physical strategies by which mitochondria communicate and function within a cell.

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image: The Downside of Antibiotics?

The Downside of Antibiotics?

By Ruth Williams | July 3, 2013

Bacteria-killing antibiotics might also damage a person’s tissues.

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image: Shielding Cancer Cells from Damage

Shielding Cancer Cells from Damage

By Tia Ghose | November 4, 2011

An alternative form of an enzyme involved in the glucose metabolism pathway protects cancer cells from oxidative stress.

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