Oxidative Stress News and Research

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Oxidative Stress is a condition in which antioxidant levels are lower than normal. Antioxidant levels are usually measured in blood plasma.

Low vitamin B12 is linked to heart disease. Supplements tell a different story

A narrative review published in Nutrition Journal examines how vitamin B12 deficiency may contribute to cardiovascular disease through elevated homocysteine, endothelial dysfunction, oxidative stress and altered methylation. The authors found that B12 supplementation has not consistently prevented heart attacks or cardiovascular deaths in clinical trials, although combined B-vitamin therapy may modestly reduce stroke risk, particularly in populations without folic acid fortification.

27 Oct 2026

Heated tobacco products cause immediate cardiovascular and genetic damage

Just one session of heated tobacco product use results in measurable damage to the blood vessels, according to a study published today (Tuesday) in the European Journal of Preventive Cardiology.

27 Oct 2026

Could a few days of annual extreme heat raise dementia risk?

Extreme outdoor heat is associated with higher dementia risk, especially in socially vulnerable areas, emphasizing the need for targeted community strategies.

27 Oct 2026

Gut microbiome differences may explain varied sleep responses to hydrogen supplementation

Hiroshima University researchers investigated the effects of hydrogen supplementation on sleep quality in healthy human volunteers.

23 Oct 2026

Aged aircraft exhaust poses a rising threat to human health

Fine particulate matter consists of tiny particles with diameters in the nanometer range. They are produced, for example, by fuel combustion, remain suspended in the air and can penetrate deep into the respiratory tract.

14 Oct 2026

From turmeric to fenugreek, scientists examine nature’s potential role in diabetes care

A narrative review examined how curcumin, honey, culinary spices, and traditional remedies may influence oxidative stress, inflammation, mitochondrial function, and insulin signaling in diabetes. Although experimental research and some clinical trials suggest potential metabolic benefits, the authors emphasize that larger, well-controlled studies are needed to establish their effectiveness and safety alongside conventional treatments.

14 Oct 2026

Targeting the RUNX1 gene helps reduce severe skin fibrosis

Skin fibrosis includes hypertrophic scar (HTS), keloid scar (KS), and systemic sclerosis (SSc). These conditions share persistent fibroblast activation, excessive extracellular matrix (ECM) deposition, and progressive skin remodeling.

13 Oct 2026

New research shows reduced toxicant exposure reduces biological activity

Two newly published studies from Imperial Brands scientists have provided further evidence that products associated with lower levels of combustion-related toxicants also produce substantially lower levels of combustion-related toxicants also produce substantially lower biological activity than cigarette smoke under laboratory conditions.

13 Oct 2026

Targeting lipophagy could help treat metabolic and oxidative stress-related diseases

A review published in Genes & Diseases highlights lipophagy, the cellular process that selectively breaks down lipid droplets, as a potentially important therapeutic target for conditions driven by disrupted lipid metabolism and oxidative stress.

12 Oct 2026

Vascular anatomy influences experimental stroke treatment effectiveness

A preclinical study from Duke University researchers suggests that the effectiveness of an experimental approach to limiting stroke-related brain injury may depend not only on the drug itself, but also on the brain's collateral circulation: the network of small "backup" blood vessels that can help sustain tissue when a major artery is blocked.

12 Oct 2026

A simple handgrip test offers new clues about long COVID

Weaker handgrip strength correlates with severe long COVID symptoms, highlighting its potential as a measure for muscle dysfunction and recovery challenges.

12 Oct 2026

What people ate at the start of a 20-year study was linked to their heart failure odds

Researchers linked higher baseline diet quality to lower odds of developing heart failure over 20 years among 2,159 Greek adults initially free of cardiovascular disease. Healthy-food consumption showed the most consistent association, but the observational study cannot establish that dietary changes prevent heart failure.

11 Oct 2026

Study finds both the liver and brain drive distinct symptoms of rare genetic epilepsy

A recent study from Johns Hopkins Medicine reveals that both the liver and brain contribute pathways to differing symptoms of the same rare inherited disorder.

9 Oct 2026

A hot night changed sleep, anxiety and stress markers

The study highlights how heat exposure affects anxiety and sleep, revealing nighttime heat's broader impact on biological markers linked to stress and health.

7 Oct 2026

Human dental pulp stem cell secretome boosts stroke recovery

Ischemic stroke can leave lasting neurological damage after the initial vascular event, with oxidative stress, neuroinflammation, neuronal death, and disruption of neural connectivity contributing to impaired recovery.

6 Oct 2026

Lipid signaling pathway helps cells survive bacterial toxin damage

Epithelial cells form the body's frontline barriers, helping keep microbes, toxins, and other harmful substances out.

5 Oct 2026

Many herbal toothpastes fell short on a key cavity-fighting ingredient

A study on herbal toothpastes reveals varying fluoride levels, antibacterial efficacy, and cytotoxicity, highlighting safety concerns in oral hygiene products.

5 Oct 2026

Is a high-protein diet hard on your kidneys?

From temporary changes in kidney filtration to the competing nutritional needs of older adults and children, researchers examine when high protein intake may shift from adaptation to concern.

5 Oct 2026

High-dose taurine aggravates alcohol-induced liver injury, study shows

The researchers first tested whether taurine could compensate for reduced intestinal taurine availability and protect against alcohol-induced liver damage.

30 Sep 2026

Researchers found a curious mitochondrial pattern in people who moved more

Researchers found that greater self-reported activity, walking, and accelerometer-measured light activity were associated with higher mitochondrial DNA copy number in 256 healthy middle-aged adults. The cross-sectional findings cannot establish causation, and the very low amount of vigorous activity means they do not show that light movement is more beneficial than higher-intensity exercise.

29 Sep 2026