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.

Faulty myelin-making brain cells may help drive cognitive decline with age

Researchers found that greater age-related cognitive decline was associated with more dysfunctional oligodendrocytes, reduced NRF2 expression, smaller myelinated axons, and abnormally thicker myelin in human white matter. Experiments in mice showed that deleting NRF2 specifically from oligodendrocytes reproduced key white matter abnormalities and reduced cognitive improvement over time, implicating this pathway in cognitive aging.

26 Aug 2026

Scientists identify new drug target to combat airborne tuberculosis

Tuberculosis bacteria released into the air from infected individuals dry out to form infectious particles that are second only to measles in contagiousness.

26 Aug 2026

New review challenges the eight-hour ancestral sleep myth

Everyone knows the number. Eight hours. It sits on wellness dashboards, on pediatric handouts, on the label of the melatonin bottle in the medicine cabinet.

25 Aug 2026

What decades of wine research can, and cannot, tell us about health

A narrative review found that moderate wine intake has repeatedly been associated with lower all-cause and cardiovascular mortality, with proposed mechanisms involving ethanol and grape-derived polyphenols, but the evidence remains largely observational and cannot establish causation. The authors argue that drinking pattern, beverage type, age, cancer risk, and risk-modeling choices all influence how the J-shaped association should be interpreted and how alcohol guidelines are developed.

25 Aug 2026

The diet-Alzheimer’s connection is more complicated than “eat this, avoid that”

A mini-review finds that dietary patterns may influence Alzheimer’s disease through interconnected pathways involving neuroinflammation, insulin resistance, oxidative stress, blood-brain barrier dysfunction, homocysteine, and the gut-brain axis. The authors argue that genetics, sex, age, physical activity, and socioeconomic context may modify these relationships, supporting more individualized approaches to nutrition research and dementia prevention.

25 Aug 2026

Review uncovers how tryptophan metabolism affects female reproductive health

In recent years, issues concerning female reproductive health have become a global challenge that cannot be ignored.

24 Aug 2026

Comprehensive review outlines engineering-driven therapeutic pathways for spinal cord injuries

A comprehensive review published in Engineering outlines multi-disciplinary engineering approaches addressing spinal cord injury (SCI), a debilitating central nervous system disorder triggering permanent sensory, motor, and autonomic dysfunction, and imposing heavy burdens on individuals and societies worldwide.

21 Aug 2026

Sprinters and non-athletes had similar gut diversity, but one key difference emerged

College sprint athletes showed a distinct gut microbial community structure, including higher abundance of Segatella copri and Bifidobacterium adolescentis, compared with non-athletic students. Their microbiomes also showed predicted enrichment of carbohydrate and amino acid metabolism pathways, while exploratory analyses linked several dietary factors with the signature bacteria.

20 Aug 2026

$Pomegranate-derived compound shows promise against preserved ejection fraction heart failure$

Pomegranate-derived compound shows promise against preserved ejection fraction heart failure

A compound produced in the body after eating pomegranates improves heart function by up to 80% in a type of heart failure with limited treatment options.

19 Aug 2026

Moderate fruit juice intake could help close vitamin C gaps in UK diets

UK dietary modeling found that fruit juice contributed substantially to vitamin C intake, although around four in five participants already met the national Reference Nutrient Intake. The simulations examined whether changing fruit juice consumption among existing consumers or introducing moderate intake among non-consumers could improve vitamin C adequacy while limiting additional free sugars.

19 Aug 2026

Researchers put olive and fish oil IV nutrition under the microscope

A systematic review of six randomized trials compared olive-oil-based and fish-oil-containing parenteral nutrition in hospitalized adults, examining infection, inflammation, oxidative stress, liver function, and clinical outcomes. The included studies involved diverse patient groups and lipid formulations, with substantial variation in outcomes and insufficient evidence for a meta-analysis.

18 Aug 2026

Women with type 2 diabetes saw striking changes after 24 weeks of this eating pattern

A 24-week randomized trial found that a lacto-vegetarian diet combined with 14-hour time-restricted eating improved glycemic control, insulin resistance, body weight, and lipid measures in Indian women with type 2 diabetes. The combined, nutritionist-supported intervention was generally well tolerated, but its individual dietary and fasting effects cannot be separated and longer-term studies are needed.

18 Aug 2026

A four-week spice experiment challenges expectations about post-meal benefits

Culinary doses of herbs and spices did not significantly alter postprandial endothelial function, glycemia, or lipemia after four weeks of corresponding spice-containing diets in adults at cardiometabolic risk. The findings suggest that acute spice-related effects may be less apparent with longer-term exposure, although the study may have been underpowered to detect modest benefits.

17 Aug 2026

Polydatin reduces ulcerative colitis by regulating intestinal immune cells

Ulcerative colitis (UC) is a chronic inflammatory bowel disease in which recurrent intestinal inflammation can be difficult to control over the long term.

17 Aug 2026

Why keto appears to lower blood pressure for some people but not others

A narrative review finds that ketogenic diets may modestly lower blood pressure through weight loss, reduced visceral fat, improved insulin sensitivity, fluid and electrolyte shifts, and anti-inflammatory effects. However, effects vary across studies, long-term cardiovascular evidence remains limited, and diet quality, hydration, electrolyte balance, and medication monitoring are important.

17 Aug 2026

New study challenges long-held view of common bacterial resident of the lungs

Our bodies are teeming with more than 35 trillion bacteria, coexisting in microbiomes inside our guts, mouths, lungs, skin and urogenital tract.

13 Aug 2026

Mitochondrial rewiring may explain why orthoflaviviruses harm humans but persist in mosquitoes

Orthoflaviviruses reshape mitochondrial structure, metabolism, redox signaling, and quality control differently across human and mosquito models, helping explain their contrasting infection outcomes. The review highlights mitochondrial pathways that may support acute cellular damage in vertebrates but persistent, non-lethal infection in mosquitoes, pointing to potential antiviral targets.

12 Aug 2026

Ultra-processed foods linked to higher prostate cancer risk in men

Ultra-processed foods (UPFs) account for nearly 60% of adults' and 70% of children's energy intake in the United States.

12 Aug 2026

Laboratory chemical exposure and poor diet increase odds of health symptoms in young scientists

Young scientists who frequently handle laboratory chemicals and consume relatively few antioxidant-rich foods may be more likely to report symptoms such as fatigue, headaches, pallor, and easy bruising, according to a new study of university students in Nigeria.

12 Aug 2026