Oxidative Medicine and Cellular Longevity最新文献

{"title":"The Immunomodulatory Effect of Vitamin B12 in Pernicious Anemia: A Systematic Review.","authors":"Tesfaye Engdaw Habtie, Alemu Birara Zemariam, Betelhem Walelgn Dagnaw, Addis Wondmagegn Alamaw, Sefineh Fenta Feleke, Molalign Aligaz Adisu","doi":"10.1155/omcl/8463993","DOIUrl":"10.1155/omcl/8463993","url":null,"abstract":"<p><p><b>Objectives:</b> The aim of this review is to draw attention to key findings from various published studies concerning the effect of methylcobalamin/cyanocobalamin on the immune response of patients diagnosed with pernicious anemia (PA). <b>Methods:</b> This systematic review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines to ensure the accuracy and reliability of the included randomized controlled trials (RCTs) evaluating the impact of vitamin B12, in either natural or synthetic form, on immune function in patients with PA. The protocol was registered with PROSPERO (CRD42024518621). <b>Results:</b> Methylcobalamin/Cyanocobalamin administration in PA patients significantly increased CD3, CD8+, and CD19 cell levels, restoring them toward normal. Natural Killer (NK) cell activity improved, while the CD4/CD8 ratio decreased. These findings indicate a potential enhancement of immune function in PA patients. <b>Conclusion:</b> Significant restoration of CD3, CD8+, and CD19 cell counts was observed in PA patients after vitamin B12 administration, whether in its natural (methylcobalamin) or synthetic (cyanocobalamin) form. Additionally, NK cell activity was improved, and the CD4/CD8 ratio decreased. These findings suggest that methylcobalamin/cyanocobalamin has the potential to significantly enhance immunity in patients with PA. Therefore, we recommend conducting well-designed, large-scale Phase II and Phase III clinical trials with standardized methodologies to validate these findings and provide more robust evidence on the immunomodulatory effect of vitamin B12 in PA patients.</p>","PeriodicalId":19657,"journal":{"name":"Oxidative Medicine and Cellular Longevity","volume":"2025 ","pages":"8463993"},"PeriodicalIF":0.0,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12129597/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144209089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Reactive Oxygen Species Scavenger N-Acetyl-L-Cysteine Reduces Storage-Dependent Decline in Integrin <i>α</i> _IIb <i>β</i> ₃-Mediated Platelet Function, Inhibiting Pre-Activation of Integrin and Its <i>β</i> ₃ Subunit Cleavage.","authors":"Ehteramolsadat Hosseini, Zahra Beyranvand, Simone M Schoenwaelder, Fateme Farhid, Mehran Ghasemzadeh","doi":"10.1155/omcl/7499648","DOIUrl":"https://doi.org/10.1155/omcl/7499648","url":null,"abstract":"<p><p><b>Background:</b> Premature activation of integrin <i>α</i> _IIb <i>β</i> ₃ plays a central role in the induction and development of the platelet storage lesion (PSL) characterized by an exhausted platelet phenotype that affects adhesion and spreading on fibrinogen. Given the role of reactive oxygen species (ROS) in regulating platelet activation per se, we investigated the effects of a ROS scavenger on reducing the functional decline of platelet integrin <i>α</i> _IIb <i>β</i> ₃ during storage. <b>Methods:</b> Platelet-rich plasma-platelet concentrates (PRP-PCs) were either treated with ROS-reducing agents (1 mM N-acetyl-L-cysteine [NAC] or 30 μM NADPH oxidase [NOX] inhibitor, VAS2870) or kept untreated during storage. CD41/CD61 (total integrin <i>α</i> _IIb <i>β</i> ₃) expression and PAC-1 binding (specific to active integrin <i>α</i> _IIb <i>β</i> ₃ conformation) were analyzed by flow cytometry over a 5 day storage period. Molecular changes in integrin <i>β</i> ₃ subunit were evaluated by western blotting. Platelet adhesion/spreading to fibrinogen in the presence of ROS inhibitors was also investigated during storage using fluorescence microscopy. <b>Results:</b> A decrease in the molecular weight of integrin <i>β</i> ₃ subunit was observed during platelet storage, and was significantly reduced by NAC but not VAS2870, suggesting proteolytic cleavage of <i>β</i> ₃ during storage. Further to this, ROS inhibitors decreased integrin activation and increased platelet adhesion to fibrinogen from day 3 of storage, while NAC but not VAS2870 improved platelet spreading. <b>Conclusion:</b> This is the first report of increasing <i>β</i> ₃ cleavage of integrin during storage that was inversely correlated with integrin <i>α</i> _IIb <i>β</i> ₃-mediated platelet function. In this regard, as a generic ROS scavenger, NAC was shown to reduce defects in platelet spreading through inhibition of <i>β</i> ₃ cleavage. This is in contrast to VAS2870 which selectively inhibits cytosolic NOX alone, suggesting that the reduced platelet function observed during storage may be due to cumulative effects of mitochondrial ROS. Taken together, these studies suggest that adding NAC to platelets may significantly preserve optimal integrin <i>α</i> _IIb <i>β</i> ₃ and platelet function during storage. Moreover, as a reversible scavenger, its inhibitory effect can be readily compensated after transfusion.</p>","PeriodicalId":19657,"journal":{"name":"Oxidative Medicine and Cellular Longevity","volume":"2025 ","pages":"7499648"},"PeriodicalIF":0.0,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12048192/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144039256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficacy of Plasmalogens on Monosodium Glutamate-Induced Neurotoxicity in Male Rats Through NF-<i>κ</i>B and p38 MAPK Signaling Pathways.","authors":"Heba M Abdou, Fatma A Hamaad, Ghada M Abd Elmageed, Hideki Katano, Mamdooh H Ghoneum","doi":"10.1155/omcl/3673280","DOIUrl":"https://doi.org/10.1155/omcl/3673280","url":null,"abstract":"<p><p>Monosodium glutamate (MSG) is the most commonly used food additive and has well-known neurotoxic effects. The current study was carried out to assess the underlying mechanisms of the neurotoxicity of MSG on the hippocampus in male rats and examine the protective effect of plasmalogens (Pls) on nuclear factor-B (NF-<i>κ</i>B) and p38 MAPK signaling pathways in the hippocampus using behavioral, biochemical, and immunohistochemical methods. Twenty-four male Wistar albino rats were divided into four groups for control or treatment with MSG (2 g/kg body weight) and/or Pls (100 mg/kg body weight). All doses were received orally for 28 days. Results show that plasmalogens ameliorate the levels of glucose, insulin, lipids, oxidative stress markers, antioxidant enzymes, AKT, and neurochemical markers. It also reduces the level of the inflammatory markers TNF-<i>α</i>, NF-<i>κ</i>B, and p38 mitogen-activated protein kinase (MAPK). Histological and immunohistochemical alterations in hippocampal tissues were found to be augmented postexposure to Pls, suggesting that Pls have a potent ameliorative effect. We conclude that Pls exert anti-inflammatory, antioxidant, and antiapoptotic effects and counteract MSG-induced neurotoxicity by altering the NF-<i>κ</i>B and p38 MAPK signaling pathways.</p>","PeriodicalId":19657,"journal":{"name":"Oxidative Medicine and Cellular Longevity","volume":"2025 ","pages":"3673280"},"PeriodicalIF":0.0,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11991862/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144004332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Common <i>UDP-Glucuronosyltransferase</i> (<i>UGT</i>)<i>1A</i> Haplotype Is Associated With Accelerated Aging in Humanized Transgenic Mice.","authors":"Bettina Langhans, Christian P Strassburg, Christoph Röcken, Sandra Kalthoff","doi":"10.1155/omcl/3203439","DOIUrl":"10.1155/omcl/3203439","url":null,"abstract":"<p><p><b>Background:</b> Aging is characterized by the progressive decline of physiological functions and is associated with an increasing risk for developing multiple age-related diseases. UDP-glucuronosyltransferase (UGT)1A enzymes detoxify a variety of endo- and xenobiotic reactive metabolites, thereby acting as indirect antioxidants. A common genetic <i>UGT1A</i> haplotype was shown to affect redox balance in humanized transgenic (htg) <i>UGT1A</i> mice. Since oxidative stress is a main activator of cellular senescence, we aimed to investigate the role of genetic <i>UGT1A</i> variants in the process of aging. <b>Methods:</b> Htg<i>UGT1A</i>-WT <i>and</i> htg<i>UGT1A</i>-SNP mice were harvested at the age of either 12 weeks (young) or 18 months (aged). The effect of aging was examined by analyzing <i>UGT1A</i> expression and activity, expression of senescence markers, and senescence-associated secretory phenotype (SASP) factors, as well as blood counts, serum parameter, and histological staining. <b>Results:</b> In comparison to aged htg<i>UGT1A</i>-WT mice, hepatic <i>UGT1A</i> mRNA and protein expression as well as UGT activity were significantly reduced in aged htg<i>UGT1A</i>-SNP mice. Moreover, elderly htg<i>UGT1A</i>-SNP mice exhibited increased levels of oxidative stress, senescence markers, SASP factors, and peripheral leukocyte counts compared to the respective htg<i>UGT1A</i>-WT mice. Consistent with these findings, we observed higher amounts of collagen and amyloid fibrils as well as an elevated senescence-associated β-galactosidase (SA-β-gal) activity in histological sections of the liver obtained from aged htg<i>UGT1A</i>-SNP mice. <b>Conclusion:</b> Our data suggest an accelerated aging process caused by a common <i>UGT1A</i> haplotype. Moreover, elderly individuals carrying the <i>UGT1A</i> haplotype might exhibit an altered metabolism of drugs, which could necessitate dose adjustments.</p>","PeriodicalId":19657,"journal":{"name":"Oxidative Medicine and Cellular Longevity","volume":"2025 ","pages":"3203439"},"PeriodicalIF":0.0,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11968170/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143780911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Green Synthesis and Characterization of Silver and Gold Nanoparticles Using <i>Echinophora platyloba</i> Extract and Evaluation of Their Anti-Inflammatory and Antioxidant Properties.","authors":"Maryam Azadmanesh, Mohammad Foad Noorbakhsh, Saeed Nazifi, Milad Faraji","doi":"10.1155/omcl/4421985","DOIUrl":"https://doi.org/10.1155/omcl/4421985","url":null,"abstract":"<p><p>This study intends to investigate the green synthesis of silver (Ag) and gold (Au) nanoparticles (NPs) using <i>Echinophora platyloba</i> extract and to evaluate the antioxidant and anti-inflammatory effects of the synthesized NPs and the extract. In this study, aqueous and hydroalcoholic extracts of <i>E. platyloba</i> were prepared, which were used for the biosynthesis of Ag and Au NPs. Dynamic light scattering (DLS), zeta potential analysis, transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) spectroscopy, UV-Vis spectroscopy, and X-ray diffraction (XRD) methods were used to characterize the green NPs. The antioxidant effect of the NPs was estimated using in vitro methods, including reducing power (RP), ferric reducing/antioxidant power (FRAP), and 2,2-diphenyl-1-picrylhydrazyl (DPPH). To evaluate the anti-inflammatory and antioxidant activity of <i>E. platyloba</i> extract and Ag and Au NPs, we used the carrageenan method. In our experiment, the extract and the synthesized NPs were administered orally to the mice 2 h before the carrageenan injection. The subsequent inhibition of inflammation and reduction of paw thickness were quantified. To evaluate their antioxidant effect, malondialdehyde (MDA), and total antioxidant capacity (TAC) levels were measured. Levels of pro-inflammatory cytokines, interleukin-6 (IL-6) and tumor necrosis factor-<i>α</i> (TNF-<i>α</i>), were also quantified. In this study, the results indicate that the synthesized Ag and Au NPs have antioxidant and anti-inflammatory effects. The most promising results were observed in the groups that received the Ag NPs.</p>","PeriodicalId":19657,"journal":{"name":"Oxidative Medicine and Cellular Longevity","volume":"2025 ","pages":"4421985"},"PeriodicalIF":0.0,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11986947/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144033723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Targeted Modulation of Mitochondrial Oxidative Stress Ameliorates 5-Fluorouracil-Induced Renal Injury in BALB/c Mice.","authors":"Prasad Kisan Tambe, Maya P Shetty, Komal Rana, Sanjay Bharati","doi":"10.1155/omcl/8892026","DOIUrl":"https://doi.org/10.1155/omcl/8892026","url":null,"abstract":"<p><p><b>Background:</b> The present study reports the protective effect conferred by scavenging mitochondrial oxidative stress (mtOS) in 5-fluorouracil (5-FU)-induced renal injury. <b>Methods:</b> 5-FU renal toxicity model was created by administering 5-FU (12 mg/kg b.w. intraperitoneally [i.p.], for 4 days) to male BALB/c mice. The protective effect of mitochondria-targeted antioxidant (MTA), Mito-TEMPO coadministered at a dosage of 0.1 mg/kg b.w. i.p., was established in terms of levels/expressions of renal injury markers, histopathological alterations, oxidative DNA damage, proinflammatory markers, mtOS, mitochondrial dysfunction, and modulation of apoptotic proteins and apoptotic cell death. <b>Results:</b> A significant rise in the levels of serum urea, uric acid, and creatinine was noted after 5-FU administration to the animals. Immunohistochemical and ELISA findings demonstrated significant decrease in podocin and conversely a significant increase in neutrophil gelatinase-associated lipocalin (NGAL) expression after 5-FU challenge. The histopathological analysis further revealed Bowman's capsule dilation, glomerular condensation, and vacuolar degeneration. Mito-TEMPO treatment significantly lowered renal injury markers, reversed the expressions of podocin and NGAL to normal, and restored normal histoarchitecture of renal tissue. Mitochondrial reactive oxygen species (mtROS), mtLPO, activity of mitochondrial enzyme complexes, and mitochondrial antioxidant defense status were significantly improved in Mito-TEMPO protected group as compared to the 5-FU group. Further, significantly decreased expression of 8-OHdG, reduction in apoptotic cell death, and modulation of apoptotic proteins Bax, Bcl-2, and caspase-3 were noted in Mito-TEMPO protected group, indicating its protective effect against 5-FU-induced renal injury. <b>Conclusion:</b> The approach of targeting mtOS using MTA, Mito-TEMPO, may prove as safe adjuvant in alleviating renal toxicity during 5-FU chemotherapy.</p>","PeriodicalId":19657,"journal":{"name":"Oxidative Medicine and Cellular Longevity","volume":"2025 ","pages":"8892026"},"PeriodicalIF":0.0,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11986914/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144026598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"RETRACTION: Resveratrol Derivative, Trans-3, 5, 4'-Trimethoxystilbene Sensitizes Osteosarcoma Cells to Apoptosis via ROS-Induced Caspases Activation.","authors":"Oxidative Medicine And Cellular Longevity","doi":"10.1155/omcl/9847186","DOIUrl":"https://doi.org/10.1155/omcl/9847186","url":null,"abstract":"<p><p>[This retracts the article DOI: 10.3390/cells8111466.].</p>","PeriodicalId":19657,"journal":{"name":"Oxidative Medicine and Cellular Longevity","volume":"2025 ","pages":"9847186"},"PeriodicalIF":0.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11986955/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144023101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Antiaging and Antioxidative Effects of a Combination of Resveratrol and High-Intensity Interval Training on the Frontal Lobe in Aged Rats: The Role of SIRTS 4, SIRTS 5, SOD1, and SOD2.","authors":"Amin Mehrabi, Reza Nuori, Abbasali Gaeini, Maryam Amirazodi, Mohammad Mehrtash, Mohsen Abedini Esfahlani, Mina Bahrami, Mohammad Abbas Bejeshk, Mohammad Amin Rajizadeh","doi":"10.1155/omcl/8251896","DOIUrl":"10.1155/omcl/8251896","url":null,"abstract":"<p><p><b>Introduction:</b> High-intensity interval training (HIIT) is a form of interval exercise that enhances capacity and benefits well-being. Resveratrol is a naturally occurring polyphenol prevalent in grapes and red wine, demonstrating significant health effects on the body. This study sought to evaluate the synergistic effects of swimming HIIT and resveratrol intake on the expression of SIRTs 4, SIRTs 5, and superoxide dismutases (SOD1 and SOD2) in the frontal lobe of elderly rats. <b>Materials and Methods:</b> Forty-five male Wistar rats, aged 22 months, were categorized into five groups: the control group (CTL), the swimming HIIT group (Ex: Exercise), the swimming HIIT with resveratrol group (R + Ex), the resveratrol group (R), and the solvent control group (vehicle). The R + Ex group engaged in high-intensity interval swimming and ingested resveratrol (10 mg/kg/day via gavage) for 6 weeks. During the initial and final sessions of each week, blood samples from the rats in the Ex and R + Ex groups were collected for lactate analysis. The proteins SIRTs 4 and 5, as well as SODs 1 and 2, were quantified using the western blot approach. <b>Results:</b> Integrating HIIT with resveratrol markedly enhanced the expression of SIRT4, SIRT5, and antioxidant enzymes in the frontal lobe of elderly rats. <b>Conclusion:</b> Resveratrol and HIIT, particularly their synergistic effects, provide antioxidant and antiaging benefits on the frontal lobe of aged rats.</p>","PeriodicalId":19657,"journal":{"name":"Oxidative Medicine and Cellular Longevity","volume":"2025 ","pages":"8251896"},"PeriodicalIF":0.0,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11824298/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143433598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prothrombotic State and Vascular Damage in Angiotensin II-Induced Hypertension: Influence of Waterpipe Smoke Exposure.","authors":"Sumaya Beegam, Suhail Al-Salam, Nur Elena Zaaba, Ozaz Elzaki, Abderrahim Nemmar","doi":"10.1155/omcl/2670738","DOIUrl":"10.1155/omcl/2670738","url":null,"abstract":"<p><p>Hypertension is a risk factor for vascular injury and thrombotic complications, and smoking tobacco is a risk factor for the development and exacerbation of hypertension. The influence of waterpipe smoke (WPS) on coagulation and vascular injury in hypertension is not fully understood. Here, we evaluated the effects of WPS in mice made hypertensive (HT) by infusing angiotensin II (Ang II) for 42 days. On day 14 of the infusion of Ang II or vehicle (normotensive; NT), mice were exposed either to air or WPS for four consecutive weeks. Each session was 30 min/day for 5 days/week. The concentrations of tissue factor, von Willebrand factor, fibrinogen, and plasminogen activator inhibitor-1 were elevated in the HT + WPS group versus either HT + air or NT + WPS groups. Similarly, in the HT + WPS group, thrombogenicity was increased both in vivo and in vitro, compared with either HT + air or NT + WPS groups. In aortic tissue, adhesion molecules including P-selectin, E-selectin, intercellular adhesion molecule-1, and vascular adhesion molecule-1 were increased in the HT + WPS group versus the controls. Likewise, various proinflammatory cytokines and markers of oxidative stress augmented in the HT + WPS group compared with either HT + air or NT + WPS. DNA damage, cleaved caspase-3, and cytochrome C were increased in the HT + WPS group versus the controls. The immunohistochemical expression of nuclear factor erythroid 2-related factor 2 was increased in the HT + WPS group versus either HT + air or NT + WPS. Taken together, our findings show that WPS exposure intensified thrombogenicity and vascular damage in experimentally induced hypertension. Our data suggest that vascular toxicity of WPS may be exaggerated in hypertensive patients.</p>","PeriodicalId":19657,"journal":{"name":"Oxidative Medicine and Cellular Longevity","volume":"2025 ","pages":"2670738"},"PeriodicalIF":0.0,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11824600/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143433595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exercise Stress Testing Enhances Plasma Protein Carbonyl Levels in Patients With Asymptomatic Moderate-to-Severe Aortic Stenosis.","authors":"Magdalena Kopytek, Renata Kolasa-Trela, Krzysztof Piotr Malinowski, Michał Ząbczyk, Joanna Natorska, Anetta Undas","doi":"10.1155/omcl/4852300","DOIUrl":"10.1155/omcl/4852300","url":null,"abstract":"<p><p><b>Background:</b> Exercise stress test-induced hypofibrinolysis and changes in circulating levels of several interleukins have been observed in aortic stenosis (AS). However, it is unknown whether the pattern of exercise-induced changes in oxidative stress differs between AS patients and controls and if the differences are associated with changes in fibrinolysis and inflammation. <b>Methods:</b> We studied 32 asymptomatic patients with moderate-to-severe AS and 32 controls of similar age, sex, and body mass index. We assessed plasma protein carbonyl (PC) concentrations, a marker of oxidative stress, in relation to interleukin (IL)-10 and -6 levels and fibrinolysis capacity, expressed as plasma clot lysis time (CLT) at four time points: at baseline, at peak exercise, 1 and 24 h after a symptom-limited exercise test. <b>Results:</b> AS patients had 12.8% and 27% higher PC concentrations 1 and 24 h after exercise than controls (both <i>p</i>  < 0.05), with no differences at baseline and peak exercise. In AS patients, PC concentration was 8.3% higher at peak exercise compared to baseline followed by further PC increase (+12.8% at 1 h and +20.5% at 24 h) compared to peak exercise (all <i>p</i>  < 0.05). In controls, PC concentrations increased during exercise, reaching the highest values 1 h after exercise (+21.9%). In the AS group, PC concentrations at baseline correlated with AS severity measured as peak transvalvular velocity (<i>V</i> _max: <i>r</i> = 0.49, <i>p</i>  < 0.05), mean (PG_mean: <i>r</i> = 0.42, <i>p</i>  < 0.05), and maximal transvalvular pressure gradients (PG_max: <i>r</i> = 0.41, <i>p</i>  < 0.05). PC concentrations correlated with IL-10 levels 1 h (<i>r</i> = 0.37, <i>p</i>  < 0.05) and 24 h (<i>r</i> = 0.38, <i>p</i>  < 0.05) post exercise in AS patients, whereas in controls only at baseline (<i>r</i> = 0.42, <i>p</i>  < 0.05). No associations between PC levels and IL-6 or CLT were observed at any time point. <b>Conclusions:</b> Our findings show that AS patients respond differently to exercise in terms of PC compared to controls, which suggests a novel effect of hemodynamic abnormalities in this disease on intensity of oxidative stress.</p>","PeriodicalId":19657,"journal":{"name":"Oxidative Medicine and Cellular Longevity","volume":"2024 ","pages":"4852300"},"PeriodicalIF":0.0,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11679273/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142903441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}