Articles tagged with Oxidative Stress
Researchers at Nagoya University have identified giant-nucleus cells as precancerous markers in the kidneys, which emerge in response to iron toxicity and BRCA1 mutations. These cells exhibit cancer-related gene activity and can signal early cancer development in surrounding tissue, with distinct biological profiles in BRCA1-mutant rats.
Researchers found three herbal extracts protect mitochondrial function in a cellular model of Parkinson’s disease, suggesting a potential treatment. The extracts, including Uncaria rhynchophylla, Gardenia jasminoides, and Scutellaria baicalensis, improved cell viability and mitochondrial function in cells with reduced VPS13C expression.
Researchers at Kyushu University identified a molecule that strengthens hepatocyte growth factor (HGF), a key muscle-repair signal. The compound, lipoic acid trisulfide (LASSS), enhances HGF's binding affinity for satellite cells, restoring its ability to repair muscle fibers and counteracting age-related muscle loss.
A non-canonical mTOR–SGK1 pathway regulates neuronal necroptosis, and targeting this axis halts necroptosis and neuroinflammation in traumatic brain injury. S6K1 inhibitors alleviate trauma-induced neuroinflammation and functional deficits.
Researchers found that microplastics undergo aging in sewer environments, generating reactive oxygen species that restructure microbial communities and increase methanogenic activity. This transformation suppresses hydrogen sulfide production but significantly enhances greenhouse gas emissions.
Researchers found that eliminating a protein called DHHC3 in melanoma cells led to increased oxidative stress, cellular senescence, and activation of anti-tumor immune cells. This suggests that DHHC3 plays an immunoregulatory role in melanoma growth.
A new study reveals that maternal infection during pregnancy can lead to severe heart dysfunction in offspring, primarily due to oxidative stress and lipid peroxidation. Administering antioxidants or specific lipid peroxidation inhibitors can rescue mitochondrial function and restore healthy metabolic signaling.
A new study links amino acid-driven oxidative stress to therapeutic vulnerability in Acute Myeloid Leukemia (AML) by targeting the UCP2-BCAA-PI3K/AKT/mTOR signaling axis. Suppressing UCP2 impairs leukemic cell proliferation and triggers apoptosis, while BCAA-induced oxidative stress activates this pathway.
Researchers investigate whether micro- and nanoplastics contribute to liver disease through oxidative stress, fibrogenesis, and inflammation. They emphasize the need for increased research into plastic-induced liver injury and its potential impact on human health.
Researchers at Tohoku University discovered a hidden mechanism in DNA damage caused by singlet oxygen generating abasic sites. This process is common and represents one of the main forms of DNA damage, alongside guanine-related types.
Scientists discover arachidonic acid (AA) mediates oxidative stress-induced intestinal injury. AA treatment inhibits organoid activity and stem cell differentiation, leading to reduced goblet and endocrine cells. Inhibiting AA production with a specific inhibitor improves organoid vitality.
Researchers found that people following a Mediterranean-style diet have higher levels of humanin and SHMOOSE, which are linked to protection against cardiovascular disease and neurodegeneration. The study suggests that specific components of the Mediterranean diet may directly influence mitochondrial biology.
Researchers have confirmed the existence of a long-theorized molecule in oxidation, which has implications for atmospheric chemistry, biochemistry, and medicine. The discovery was made using a unique mass-spectrometric technique and has significant implications for understanding reaction steps and products in oxidation processes.
Patients with type 2 diabetes and brain metastases who used GLP-1 receptor agonists showed a significant reduction in all-cause mortality. The use of these medications was associated with reduced neuroinflammation, preservation of the blood-brain barrier, and lowered oxidative stress and mitochondrial dysfunction.
Researchers found that selenium reduced oxidative stress and partially restored hormone levels in male rats with cisplatin-induced testicular damage. The study suggests that selenium may support the body's natural defenses and protect reproductive organs during chemotherapy.
Copper metabolism plays a crucial role in inflammatory bone diseases, with copper overload suppressing glycogen synthesis and increasing inflammatory activity. Researchers found that cuproptosis, a form of programmed cell death, can lead to bone weakening and osteoclast formation, providing a potential new therapeutic target.
Researchers at Flinders University developed a high-performance coating made from peppermint essential oil that protects against infection, inflammation, and oxidative stress. The coating demonstrates strong antibacterial action against key pathogens, including E. coli and Pseudomonas aeruginosa.
A study published in Science of The Total Environment found that e-cigarette exposure alters gut microbiota composition and affects neurobehavior in zebrafish. The researchers observed disruptions in the gut microbiome, with reduced microbial network stability and altered community composition, suggesting potential health risks.
A new study suggests an experimental peptide, TXM-CB3, reduces recurring seizures and protects brain function in preclinical studies. Early treatment with the peptide shows significant benefits in reducing seizure activity and improving cognitive function.
Researchers summarize itaconate biology highlighting its chemical reactivity and therapeutic potential in treating infectious diseases, sepsis, autoimmunity, neurodegenerative disorders. Itaconate exerts biological effects through post-translational modifications, altering protein activity and signaling pathways
Researchers found that glycation stress, caused by methylglyoxal, promotes aortic stiffening and cellular senescence. Natural compound Gly-Low, containing nicotinamide and alpha-lipoic acid, reversed these effects and reduced stiffness in aging mice.
Researchers at SwRI and Trinity University are working on a new prodrug to mitigate ischemia/reperfusion injury (IRI), which causes permanent cellular and tissue damage. The team aims to protect against IRI by targeting protein misfolding during cellular stress.
The study found that S. birrea extract reversed behavioral alterations caused by monosodium glutamate, reduced oxidative stress parameters, and counteracted malondialdehyde levels. These results support the potential of S. birrea as a neuroprotective agent for preventing and treating cognitive deficits.
A new type of DNA damage, glutathionylated DNA adducts, accumulates at high levels in mitochondrial DNA, affecting energy production and stress response. The discovery sheds light on how cells sense and respond to stress, with potential implications for diseases like cancer and diabetes.
This review highlights SIRT1 as a key regulator in MASLD, orchestrating metabolic homeostasis, immune modulation, and inter-organ communication. SIRT1's therapeutic potential is supported by natural product activators and synthetic small-molecule compounds.
Researchers identified a significant association between perfluoroheptanoic acid (PFHpA) exposure and metabolic dysfunction-associated steatotic liver disease (MASLD) in adolescents. The study used advanced models to reveal PFHpA's role in disrupting biological pathways, leading to liver damage and inflammation.
This study investigates the effects of polyherbal supplement MD-1 on high-fat diet-induced diabetes in C57BL/6J mice. MD-1 treatment significantly reduces blood glucose, triacylglycerol, and total cholesterol levels, improving adipose tissue function.
A large-scale U.S-based randomized trial shows that intensive lifestyle changes can significantly improve global cognition in older adults at high risk of cognitive decline. The intervention emphasized regular physical activity, healthy diet, cognitive stimulation, and social engagement, leading to clinically meaningful improvements. T...
Researchers discovered that immune hubs in the kidney create a unique metabolic environment, accumulating glutathione to counter oxidative stress. Blocking this process prevents TLS formation or causes existing structures to shrink. Urine glutathione levels can serve as a non-invasive biomarker for TLSs and disease progression.
Long-haul COVID-19 and myalgic encephalomyelitis/chronic fatigue syndrome share similar pathophysiologies, including oxidative stress, autoantibodies, and impaired mitochondrial energy conversion. These conditions also exhibit neurodegenerative outcomes, such as fatigue, sleep disturbances, and increased risk of dementia.
Researchers developed Localizatome to study oxidative stress-related changes in protein localization. The database provides comprehensive information on subcellular protein localization and dynamic localization changes under stress.
Researchers have discovered an oral drug called MA-5 that can improve both heart and muscle problems in patients with Barth syndrome, a rare genetic disorder. The drug boosts cellular energy production by up to 50% and protects cells from oxidative stress-induced death, addressing the underlying cause of the disease.
Researchers at Florida Atlantic University have secured two key grants to investigate targeting the MBLAC1 gene as a new approach to treat glioblastoma, a very aggressive and fast-growing type of brain cancer. The project aims to advance innovative projects that could make a meaningful impact on cancer therapy.
Damage to the intestinal barrier is a key factor in IBD pathogenesis. The barrier maintains homeostasis by preventing harmful substances from entering systemic circulation. Emerging therapeutic strategies target oxidative stress modulation, microbiota restoration, and autophagy regulation.
A novel nanozyme has been developed to prevent excess clotting in conditions like pulmonary thromboembolism and COVID-19. The nanozyme works by controlling reactive oxygen species levels, thereby preventing platelet over-activation and excess clot formation.
Autophagy and lysosomal pathways orchestrate the unconventional secretion of PARK7, a PD-associated protein, in response to cellular stress. The study reveals a unique mechanism involving coordinated actions of macroautophagy and chaperone-mediated autophagy.
Research in rats suggests that Arbutus unedo extract can prevent changes in the colon's lining and reduce colonic lesions. The treatment also caused decreased expression of proteins promoting oxidative stress and inflammation.
Emerging research links microbial dysbiosis to aging, as dysbiosis accelerates DNA damage and telomere shortening. Therapeutic strategies targeting the microbiome may promote healthy longevity.
A new review article reveals the dynamic mechanisms of ROS regulating antigen processing and presentation, proposing combined immunotherapy strategies based on redox homeostasis regulation. Targeting redox homeostasis is a promising direction for enhancing tumor immunotherapy efficacy.
A new study found that increased perceived stress can lead to worsened respiratory symptoms and decreased quality of life in individuals with chronic obstructive pulmonary disease (COPD). The study also examined the association between stress and platelet activation, oxidative stress, and systemic inflammation.
Indigenous Nigerian food plants, such as Spondias mombin and Xanthosoma sagittifolium, contain flavonoids, alkaloids, terpenoids, and phenolic acids that exhibit anticancer properties. These plants induce apoptosis, inhibit cell proliferation, reduce oxidative stress, and modulate key cellular pathways.
Methyl eugenol has demonstrated notable antioxidant and antiproliferative activity, with potential therapeutic benefits for diseases like Alzheimer's disease and cancer. However, its toxicological risks, including hepatotoxicity and alterations in the gut microbiota, pose concerns for its application.
This study found that inhibiting cyclooxygenase-2 reduces liver ferroptosis and fibrosis by upregulating the Nrf2 signaling pathway. COX-2 inhibition also restored antioxidant defenses in hepatocytes, reducing oxidative stress and lipid peroxidation.
This study investigates the protective effect of N-acetylcysteine (NAC) on acyclovir (ACV)-induced nephrotoxicity in adult Wistar rats. The results show that NAC supplementation significantly reduces kidney damage caused by ACV, restoring normal kidney function.
Researchers discovered that aging causes inflammation, oxidative stress, and gene disruption in the retinal pigment epithelium, a vital layer of cells in the eye. This study provides a clearer understanding of why aging leads to eye disease and introduces a reliable laboratory model for testing new therapies.
Researchers investigated why bones become less responsive to exercise with age, finding increased mtROS or decreased Atg7-dependent autophagy in osteoblastic cells do not contribute to reduced mechanoresponsiveness. Damage to the bone's osteocyte network also does not prevent a healthy bone-building response.
The review article examines the relationship between anemia and retinopathy of prematurity, focusing on iron deficiency and underlying molecular mechanisms. Anemia reduces oxygen delivery to the retina, exacerbating hypoxia and promoting pathological neovascularization.
Filipino researchers found a way to enhance tapuy lees for high polyphenol content and antioxidant activity, extending test animal lifespan and health. The study suggests repurposing tapuy lees as a health food to combat aging and oxidative stress-related diseases.
Scientists repurposed the drug edaravone as an imaging probe to detect oxidative stress in brain tissue using PET scans. This technique can help diagnose neurological conditions such as ALS and Alzheimer's disease earlier, when treatment is more effective.
A large study of nearly 80,000 men found that those with better semen quality lived two to three years longer than those with poorer semen quality. The research suggests that poor semen quality may be an indicator of underlying health issues, and could potentially detect early signs of disease.
The review explores how antioxidant-enzyme interactions contribute to the development of non-communicable diseases, including cardiovascular disorders and cancer. Emerging therapeutic strategies harness these interactions to manage NCDs, offering potential benefits through dietary and pharmacological interventions.
A study found that pro-inflammatory molecules contribute to benign prostatic hyperplasia (BPH) in aging men, especially those with metabolic syndrome. Men with BPH had higher levels of pro-inflammatory markers and lower anti-inflammatory substances, suggesting a link between inflammation and prostate conditions.
This study found that intermediate-term oral contraceptive use was associated with lower antioxidant levels and higher triglyceride and low-density lipoprotein levels. Regular monitoring of these parameters is recommended for OCP users to mitigate potential metabolic and hepatic effects.
A systematic review of 24 studies suggests resveratrol can enhance the quantity and quality of egg cells, called oocytes. The compound may also treat infertility related to endometriosis and obesity.
Research on preservative mechanisms aims to develop improved preservation methods and identify effective antimicrobial compounds. Factors such as concentration, exposure time, and specific microorganism targeting influence preservative effectiveness, making targeted modifications crucial for enhanced antimicrobial properties.
Researchers used novel fluorescent sensors to track pH and H2O2 levels inside autophagic vesicles, revealing high levels in the middle stage of autophagy. The discovery opens up new avenues for understanding autophagy in health and disease, potentially leading to new ways of treating diseases associated with impaired autophagy.
A team of researchers from DTU has successfully produced vitamin B2 using a novel, cost-effective, and climate-friendly method involving food-approved lactic acid bacteria. The production process requires only basic fermentation tools and can be integrated into traditional foods, enhancing public health and reducing environmental impact.
Scientists discovered that social stress raises oxidative stress in the brains of low-status male cichlid fish, which is linked to poorer mental and neurological health. The study found that high-status fish have lower levels of oxidative stress and higher antioxidant capacity.
A team of University of Utah chemists discovered that bicarbonate in CO₂ helps balance pH levels and alters the Fenton reaction, producing milder radicals. This finding challenges how cell damage has been studied for decades and may reshape our understanding of oxidative stress in diseases like cancer or aging.
MD Anderson researchers have made significant advancements in treating chronic pain, myelodysplastic syndrome, and rare cancers. A novel treatment for chronic pain has been developed with reduced side effects, while targeted therapies like canakinumab show promise for personalized approaches.