Reactive Oxygen Species (ROS) News and Research

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Study pinpoints how immune abnormalities in retina may lead to macular degeneration

In a study published this week in the Proceedings of the National Academy of Sciences, a University of Wisconsin-Madison research team pinpoints how immune abnormalities beneath the retina result in macular degeneration, a common condition that often causes blindness.

19 Jul 2016

Researchers design inhibitory peptide to unleash defence mechanisms against fungal pathogens

For most people, a simple case of thrush or athlete's foot can be quickly and easily treated using over-the-counter anti-fungal creams and pills.

19 Jul 2016

Metallic molecule offers real-time monitoring of amyloid plaques in patients with Alzheimer's

A metallic molecule being studied at Rice University begins to glow when bound to amyloid protein fibrils of the sort implicated in Alzheimer's disease. When triggered with ultraviolet light, the molecule glows much brighter, which enables real-time monitoring of amyloid fibrils as they aggregate in lab experiments.

11 Jul 2016

Scientists reveal metabolic reasons why low calorie diets may lead to longer life

Overeating can lead to health issues that can shorten one's life, such as obesity, diabetes and heart disease.

30 Jun 2016

Health-promoting bacteria may protect women from breast cancer

Bacteria that have the potential to abet breast cancer are present in the breasts of cancer patients, while beneficial bacteria are more abundant in healthy breasts, where they may actually be protecting women from cancer, according to Gregor Reid, PhD, and his collaborators.

25 Jun 2016

Scientists uncover how changes in metabolism of embryonic stem cells can help engineer new blood vessels

Researchers from the University of Illinois at Chicago College of Medicine have uncovered how changes in metabolism of human embryonic stem cells help coax them to mature into specific cell types — and may improve their function in engineered organs or tissues.

24 Jun 2016

New technique may help replace brain cells, restore memory

Although brains—even adult brains—are far more malleable than we used to think, they are eventually subject to age-related illnesses, like dementia, and loss of cognitive function.

15 Jun 2016

NR supplements can reduce diabetes-related complications in mice

A naturally occurring vitamin, nicotinamide riboside (NR), can lower blood sugar levels, reduce fatty liver, and prevent peripheral nerve damage in mouse models of prediabetes and type 2 diabetes (T2D), according to a new study by researchers at the University of Iowa and the Iowa City VA Health Care System.

27 May 2016

Scientists clarify molecular mechanism of Visomitin drug

An international team of scientists led by researchers from the Lomonosov Moscow State University succeeded to clarify the molecular mechanism of a drug created in Russia and designed to prevent the damaging of cell mitochondria by reactive oxygen species. This work is published in the journal Oxidative Medicine and Cellular Longevity.

12 May 2016

Scientists unveil reasons why NSAIDs, pain killers may increase heart disease risk

Researchers have known for more than a decade that the risk of heart disease and stroke increases when people take pain relievers like ibuprofen and other non-steroidal anti-inflammatory drugs, or NSAIDs. Now, scientists from the University of California, Davis, have uncovered some of the reasons why these drugs can harm heart tissue.

30 Apr 2016

Scientists identify critical biological factor for transforming adult somatic cells into stem cells

In a new Cell Reports paper, a team led by John P. Cooke, M.D., Ph.D., of the Houston Methodist Research Institute, has identified and characterized a biological factor critical to the transformation of adult somatic cells (cells that are not sperm or egg cells) into stem cells.

22 Apr 2016

Increased expression of VEGF-A promotes three common aging-related eye conditions

A Massachusetts General Hospital investigator has found that increased expression of the angiogenic factor VEGF-A promotes three common aging-related eye conditions - both versions of age-related macular degeneration (AMD) and also cataracts - in an animal model.

12 Apr 2016

Novel metabolic pathways help cancer cells thrive under certain conditions

Scientists at the Children's Medical Center Research Institute at UT Southwestern (CRI) have identified a novel metabolic pathway that helps cancer cells thrive in conditions that are lethal to normal cells.

7 Apr 2016

Aged tumor cells in melanoma behave in a different way than younger tumor cells

Cancer risk increases with one's age as accumulated damage to our cells and chronic inflammation occur over time. Now, an international team of scientists led by The Wistar Institute have shown that aged tumor cells in melanoma behave differently than younger tumor cells, according to study results published in the journal Nature.

5 Apr 2016

Study may help identify unborn children at higher risk for birth defects

Researchers at the University of Toronto have discovered a novel function performed by the breast cancer 1 protein (BRCA1), which regulates DNA repair. Well known for the role it plays in breast and ovarian cancer, this study revealed that the BRCA1 protein actually plays a much broader biological role, particularly in protecting the developing embryo from the damaging effects of reactive oxygen species (ROS).

1 Apr 2016

Novel mitochondria-specific ceria nanoparticles can effectively suppress neuronal cell death

The brain is an enormous network of communication, containing over 100 billion nerve cells, or neurons, with branches that connect at more than 100 trillion points. They are constantly sending signals through a vast neuron forest that forms memories, thoughts and feelings; these patterns of activity form the essence of each person.

27 Feb 2016

Over-expression of heme oxygenase-1 enzyme protects the heart from doxorubicin damage

Life-threatening heart damage is an adverse side effect of the cancer drug doxorubicin, damage that also limits the use of newer chemotherapeutic agents such as trastuzumab and imatinib. The ability to protect the heart from these side effects would benefit patients, including cancer survivors who are at risk of developing heart damage years later, and it also could allow safer use of these drugs at higher doses.

26 Feb 2016

New research shows copper can destroy MRSA in touch contamination

New research from the University of Southampton shows that copper can destroy MRSA spread by touching and fingertip contamination of surfaces.

24 Feb 2016

Amorphous iron nanoparticles have potential to kill tumor cells

Amorphous iron nanoparticles have a specific toxicity in tumor cells. In the journal Angewandte Chemie, Chinese scientists describe their design and synthesis of a special amorphous state of nanoparticulate iron, which can locally release reactive iron species in the acidic and hydrogen peroxide rich environment of cancer cells, providing new possibilities for theranostics and chemodynamic therapies.

20 Jan 2016

Immune killer cells use microptosis pathway to kill intracellular parasites

The immune system's killer cells deliver a tightly controlled, 3-phase knockout punch that kills intracellular parasites through a novel pathway that an international team led by researchers from the Program in Cellular and Molecular Medicine (PCMM) at Boston Children's Hospital have named "microptosis."