Articles tagged with Oxidative Stress
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 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.
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.
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.
Researchers discovered interleukin-38 forms condensates in keratinocytes, driving programmed keratinocyte death and epidermal renewal. The study offers a new perspective on human epidermis and sheds light on skin diseases like psoriasis and atopic dermatitis.
The study found that high oxygen therapy modalities increased oxidative stress and lung injury in patients with severe COVID-19 pneumonia. Patients who died of COVID-19 had significantly higher mean MDA levels than those who survived.
A new study reveals that benzyl butyl phthalate (BBP) causes oxidative stress and DNA strand breaks, leading to cell death and abnormal chromosomes in egg cells. The research suggests that BBP exposure can lead to lower quality egg cells with compromised genomic integrity.
Researchers at Weill Cornell Medicine identified a unique enzyme called FTSJ1 that enables melanoma cells to escape oxidative stress and spread. By targeting this enzyme, therapies may prevent or treat metastasis with minimal side effects.
Researchers detected microplastic particles in the breath of wild bottlenose dolphins, suggesting inhalation may be a key route of exposure. The study supports the idea that dolphins could be exposed to potentially harmful microplastics through this pathway.
In this study, researchers from Tokyo Institute of Technology found that hydrogen sulfide-dependent transcription factor YgaV regulates iron uptake dynamics in Escherichia coli. The team observed elevated intracellular H2S levels resulting in increased antibiotic resistance and upregulated genes involved in sulfur metabolism.
A research team at Hiroshima University developed an analytical pipeline to identify unexploited genes associated with Parkinson's disease and oxidative stress. The study revealed two novel candidate genes, NUPR1 and UHRF2, which were absent from current gene-disease associations databases.
Researchers at the University of Illinois Chicago have identified a cellular pathway essential to obesity-induced atrial fibrillation. Blocking NOX2, an enzyme that produces reactive oxygen species, may prevent and reverse changes in heart structure and function caused by high-fat diets.
A study by Baylor College of Medicine researchers reveals that Tau protein mitigates neuronal damage caused by reactive oxygen species and promotes healthy aging. The findings support a new neuroprotective role for Tau against the toxicity associated with ROS.
Researchers validate increase of specific t-Cys sites associated with aging in human proteome, suggesting potential role in age-related diseases. The study expands beyond classical proteinopathic paradigms, highlighting trioxidized cysteine as a key molecular mechanism underlying aging.
A study found that men infected with high-risk types of HPV could experience sperm death from oxidative stress, leading to impaired fertility. The researchers also discovered a weakened local immune response in the urogenital tract, which may contribute to these effects.
Researchers have discovered that dialyl-sulfide and trans-chalcone can prevent breast cancer by targeting SULT1E1 and HIF1a-MMPs. These compounds neutralize oxidative stress and induce the expression of SULT1E1, leading to decreased HIF1a and MMP production.