Free Radical Biology and Medicine最新文献

{"title":"Hepatocyte-derived Fetuin-A promotes alcohol-associated liver disease in mice by inhibiting autophagy-lysosome degradation of TLR4 and M2 macrophage polarization","authors":"","doi":"10.1016/j.freeradbiomed.2024.09.011","DOIUrl":"10.1016/j.freeradbiomed.2024.09.011","url":null,"abstract":"<div><h3>Background</h3><p>Alcohol-associated liver disease (ALD) is one of the most common chronic liver diseases worldwide. Fetuin-A (FetA) is a plasma glycoprotein closely related to fat accumulation in the liver. However, the role of FetA in ALD remains unclear.</p></div><div><h3>Methods</h3><p>Both National Institute on Alcohol Abuse and Alcoholism (NIAAA) model and ethanol (EtOH) treated cell were used in this study. The effect of FetA deficiency on the progression of ALD was analyzed and the underlying mechanism was explored.</p></div><div><h3>Results</h3><p>The expression of FetA was upregulated in the liver tissues of ethanol-fed mice and ALD patients, as well as in AML12 cells treated with ethanol. FetA deletion reduced hepatic steatosis, oxidative stress, and inflammation in ALD mice. Interestingly, the absence of FetA led to a reduction of TLR4 protein level in liver tissue of EtOH-fed mice, without a corresponding change of its mRNA level. Conversely, the administration of recombinant FetA elevated TLR4 protein level in ethanol-treated RAW264.7 cells. FetA knockout significantly impeded the polarization of M1 macrophage <em>in vivo</em> or <em>in vitro</em>. Mechanistically, FetA deficiency drived the autophagy-lysosomal degradation of TLR4, subsequently inhibiting the activation of NF-kB/NLRP3 inflammasome pathway. Furthermore, knockdown of FetA using an adeno-associated virus 8 (AAV8)-shRNA can effectively prevent the progression of ALD in mice.</p></div><div><h3>Conclusion</h3><p>Our results indicate that inhibition of FetA reverses the progression of ALD in mice, implying that FetA can serve as a therapeutic target for the treatment of ALD.</p></div>","PeriodicalId":12407,"journal":{"name":"Free Radical Biology and Medicine","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0891584924006580/pdfft?md5=b85a2923279fac8b05598e10a48d247d&pid=1-s2.0-S0891584924006580-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142240381","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":"Acute and prolonged effects of Bacillus amyloliquefaciens GF424-derived SOD on antioxidant defense in healthy individuals challenged with intense aerobic exercise","authors":"","doi":"10.1016/j.freeradbiomed.2024.09.015","DOIUrl":"10.1016/j.freeradbiomed.2024.09.015","url":null,"abstract":"<div><p>Reactive oxygen species (ROS) play a vital role in cellular functions but can lead to oxidative stress and contribute to degenerative diseases when produced in excess. Maintaining redox balance is essential and can be achieved through innate defense mechanisms or external antioxidants. Superoxide dismutase (SOD) is a key enzyme that mitigates intracellular oxidative stress by converting harmful free radicals into hydrogen peroxide, which is subsequently neutralized by catalase and glutathione peroxidase. Previous studies have demonstrated the antioxidant capabilities of SOD derived from <em>Bacillus amyloquefaciens</em> GF424 (BA-SOD) in murine models exposed to either irradiation or SOD1 gene deletion. In this study, a randomized clinical trial was conducted to evaluate the antioxidative benefits of BA-SOD in healthy individuals undergoing acute aerobic exercise (AAE). Eighty participants were randomly assigned to receive either BA-SOD or a placebo for 8 weeks. Antioxidant enzyme activities and glutathione levels were measured before, immediately after, and 30 min post-exercise. A single dose of BA-SOD significantly reduced ROS levels induced by AAE, primarily by enhancing SOD activity in erythrocytes and activating glutathione peroxidase. Continuous BA-SOD administration was associated with a sustained increase in catalase activity and elevated levels of reduced glutathione (GSH). Transcriptomic and metabolomic analyses revealed that a single BA-SOD dose facilitated GSH oxidation, as evidenced by decreased levels of serine, glutamine, and glycine, and increased pyroglutamate levels. Additionally, repeated dosing led to increased expression of genes encoding isocitrate dehydrogenase and malic enzyme, which are involved in NADPH synthesis, as well as nicotinamide phosphoribosyl transferase and NAD kinase, which are essential for NADP availability–critical for converting oxidized glutathione (GSSG) back to GSH. These molecular insights align with clinical observations, suggesting that both acute and long-term BA-SOD supplementation may effectively enhance antioxidant defenses and maintain redox balance under oxidative stress conditions.</p></div>","PeriodicalId":12407,"journal":{"name":"Free Radical Biology and Medicine","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142233746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Conserved cysteine-switches for redox sensing operate in the cyclin-dependent kinase inhibitor p21(CIP/KIP) protein family","authors":"","doi":"10.1016/j.freeradbiomed.2024.09.013","DOIUrl":"10.1016/j.freeradbiomed.2024.09.013","url":null,"abstract":"<div><p>The cell cycle is a tightly regulated, dynamic process controlled by multiple checkpoints. When the prevention of cell cycle progression is needed, key effectors such as members of the p21 (CIP/KIP) inhibit cyclin-dependent kinases (CDKs). It is accepted that p21 does not sense DNA damage and that stress signals affect p21 indirectly. A plethora of DNA damaging events activate the tumor suppressor p53, which in turn transcriptionally activates p21, steeply changing its levels to reach CDK inhibition. The levels of p21 are also controlled by phosphorylation and ubiquitination events, which are relevant as they modulate p21 activity, localization, and stability. Intriguingly, here we report the first evidence of the direct control of p21 cell proliferation inhibition by DNA damaging signals. Specifically, we have identified a redox regulating mechanism that controls p21 capacity to reduce cell proliferation. Using the human p21 protein, we identified two cysteine-switches that independently regulate its cyclin-binding and linker (LH) modules respectively. Additionally, we provide a mechanistic explanation of how reactive cysteines embedded in unstructured regions of intrinsically disordered proteins respond to ROS without the guidance of protein structure, contributing to a vastly unexplored area of research. Cellular experiments utilizing p21KID mutants that disrupt disulfide-based switches demonstrate their impact on the capacity of p21 to inhibit cell cycle progression, thus highlighting the functional relevance of our findings. Furthermore, our investigation reveals that reactive cysteine residues are highly conserved across the Kinase Inhibitory Domain (KID) sequences of p21 proteins from higher eukaryotes, and the p27 and p57 human paralogs. We propose that the presence of conserved regulatory cysteines within the KIDs of p21 family members from multiple taxa provides those proteins with the capability for directly sensing ROS, enabling the direct regulation of cyclin kinase activity by ROS levels.</p></div>","PeriodicalId":12407,"journal":{"name":"Free Radical Biology and Medicine","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142240270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neutrophil extracellular traps promote M1 macrophage polarization in gouty inflammation via targeting hexokinase-2","authors":"","doi":"10.1016/j.freeradbiomed.2024.09.009","DOIUrl":"10.1016/j.freeradbiomed.2024.09.009","url":null,"abstract":"<div><p>Peptidylarginine deiminase 4 (PAD4)-dependent neutrophil extracellular trap (NET) formation is a new neutrophil death mechanism. Increased NET formation has been demonstrated to be associated with gouty inflammation. Macrophages release proinflammatory mediators and chemokines in acute gouty inflammation and subsequently lead to inflammatory cascades. However, whether NETs regulate macrophage function and polarization and further contribute to gout development remains unclear. Herein, we investigated the relationship between monosodium urate (MSU) crystal-induced NETs and macrophages and the associated mechanisms in gouty inflammation. Elevated NET formation and CD86⁺ macrophage infiltration were observed in human gouty arthritis (GA). In <em>vitro</em>, MSU crystal-induced NETs or NET-associated histone H3 treatments modulated nod-like receptor protein 3 (NLRP3) inflammasome activation, M1 polarization, and metabolic changes in macrophages. These effects were eliminated by hexokinase-2 (HK-2) silencing. Moreover, NET formation and inflammation were significantly reduced in PAD4−/− GA mice. Pharmacological inhibition of NET formation with Cl-Amidine or NET degradation with DNase Ⅰ significantly reduced M1 polarization of macrophages and ameliorated inflammation in GA mice. In sum, MSU crystal-induced NETs promote M1 polarization and NLRP3 activation in macrophages via targeting HK-2. Cell-free DNA and histone H3 may be the driving elements behind the NET-induced M1 macrophage polarization, NLRP3 activation, and metabolic changes. Targeting NETs could be a potential therapeutic strategy for gout flare.</p></div>","PeriodicalId":12407,"journal":{"name":"Free Radical Biology and Medicine","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0891584924006567/pdfft?md5=590c76c6d250a79c5ed6fd7fa4380c5f&pid=1-s2.0-S0891584924006567-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142240377","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":"HOCl forms lipid N-chloramines in cell membranes of bacteria and immune cells","authors":"","doi":"10.1016/j.freeradbiomed.2024.09.014","DOIUrl":"10.1016/j.freeradbiomed.2024.09.014","url":null,"abstract":"<div><p>Neutrophils orchestrate a coordinated attack on bacteria, combining phagocytosis with a potent cocktail of oxidants, including the highly toxic hypochlorous acid (HOCl), renowned for its deleterious effects on proteins. Here, we examined the occurrence of lipid <em>N</em>-chloramines <em>in vivo</em>, their biological activity, and their neutralization. Using a chemical probe for <em>N</em>-chloramines, we demonstrate their formation in the membranes of bacteria and monocytic cells exposed to physiologically relevant concentrations of HOCl. <em>N</em>-chlorinated model membranes composed of phosphatidylethanolamine, the major membrane lipid in <em>Escherichia coli</em> and an important component of eukaryotic membranes, exhibited oxidative activity towards the redox-sensitive protein roGFP2, suggesting a role for lipid <em>N</em>-chloramines in protein oxidation. Conversely, glutathione a cellular antioxidant neutralized lipid <em>N</em>-chloramines by removing the chlorine moiety. In line with that, <em>N</em>-chloramine stability was drastically decreased in bacterial cells compared to model membranes. We propose that lipid <em>N</em>-chloramines, like protein <em>N</em>-chloramines, are involved in inflammation and accelerate the host immune response.</p></div>","PeriodicalId":12407,"journal":{"name":"Free Radical Biology and Medicine","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0891584924006610/pdfft?md5=46cfc357b4e694d030ff02ac1b72285b&pid=1-s2.0-S0891584924006610-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142240380","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":"Novel therapeutic approach for psoriasis: Upregulating FcRn to inhibit ferroptosis and alleviate lesional skin","authors":"","doi":"10.1016/j.freeradbiomed.2024.09.010","DOIUrl":"10.1016/j.freeradbiomed.2024.09.010","url":null,"abstract":"<div><div>Psoriasis, a chronic inflammatory skin disease, is characterized by complex immune dysregulation and oxidative stress responses. The neonatal Fc receptor (FcRn) plays a crucial role in the development of autoimmune diseases. Analysis of clinical psoriasis samples demonstrated a negative correlation between FcRn expression in skin lesions and disease severity. However, the role of FcRn in this process remains unclear. This study aimed to investigate the involvement of FcRn in the pathogenesis and progression of psoriasis. In an imiquimod (IMQ)-induced psoriasis-like mouse model, FcRn expression was significantly decreased in the lesional skin, and transcriptome sequencing of the skin revealed activation of the ferroptosis pathway in psoriasis. This led to the hypothesis that FcRn could potentially regulate ferroptosis via the signal transducer and activating transcription factor 3 (STAT3)/solute carrier family 7 member 11 (SLC7A11) axis. Further experiments showed exacerbated psoriasis-like lesional skin and ferroptosis in FcRn-knockout mice, whereas intervention with the ferroptosis inhibitor Fer-1 or STAT3 inhibitor Stattic alleviated these symptoms. Critical binding sites for the transcription factor STAT3 were identified in the SLC7A11 promoter region at positions −1185 and −564 using the luciferase reporter assays and chromatin immunoprecipitation. The administration of 1,4-naphthoquinone (NQ), an FcRn agonist, effectively alleviated psoriasis-like skin lesions by inhibiting ferroptosis. This study highlights the molecular mechanisms of action of FcRn in psoriasis and provides an experimental basis for the development of novel therapeutic strategies targeting FcRn.</div></div>","PeriodicalId":12407,"journal":{"name":"Free Radical Biology and Medicine","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142282947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lifelong dietary protein restriction induces denervation and skeletal muscle atrophy in mice","authors":"","doi":"10.1016/j.freeradbiomed.2024.09.005","DOIUrl":"10.1016/j.freeradbiomed.2024.09.005","url":null,"abstract":"<div><p>As a widespread global issue, protein deficiency hinders development and optimal growth in offspring. Maternal low-protein diet influences the development of age-related diseases, including sarcopenia, by altering the epigenome and organ structure through potential increase in oxidative stress. However, the long-term effects of lactational protein restriction or postnatal lifelong protein restriction on the neuromuscular system have yet to be elucidated. Our results demonstrated that feeding a normal protein diet after lactational protein restriction did not have significant impacts on the neuromuscular system in later life. In contrast, a lifelong low-protein diet induced a denervation phenotype and led to demyelination in the sciatic nerve, along with an increase in the number of centralised nuclei and in the gene expression of atrogenes at 18 months of age, indicating an induced skeletal muscle atrophy. These changes were accompanied by an increase in proteasome activity in skeletal muscle, with no significant alterations in oxidative stress or mitochondrial dynamics markers in skeletal muscle later in life. Thus, lifelong protein restriction may induce skeletal muscle atrophy through changes in peripheral nerves and neuromuscular junctions, potentially contributing to the early onset or exaggeration of sarcopenia.</p></div>","PeriodicalId":12407,"journal":{"name":"Free Radical Biology and Medicine","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0891584924006488/pdfft?md5=08080174a956e4a3cb38ed3877cd651c&pid=1-s2.0-S0891584924006488-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142157166","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 performance and health: Role of GLUT4","authors":"","doi":"10.1016/j.freeradbiomed.2024.09.004","DOIUrl":"10.1016/j.freeradbiomed.2024.09.004","url":null,"abstract":"<div><p>The glucose transporter GLUT4 is integral for optimal skeletal muscle performance during exercise, as well as for metabolic health. Physiological regulation of GLUT4 translocation during exercise and increased GLUT4 expression following exercise involves multiple, redundant signalling pathways. These include effects of reactive oxygen species (ROS). ROS contribute to GLUT4 translocation that increases skeletal muscle glucose uptake during exercise and stimulate signalling pathways that increase GLUT4 expression. Conversely, ROS can also inhibit GLUT4 translocation and expression in metabolic disease states. The opposing roles of ROS in GLUT4 regulation are ultimately linked to the metabolic state of skeletal muscle and the intricate mechanisms involved give insights into pathways critical for exercise performance and implicated in metabolic health and disease.</p></div>","PeriodicalId":12407,"journal":{"name":"Free Radical Biology and Medicine","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0891584924006476/pdfft?md5=69a1c3fcb1fc093f3e4860ce99bfcb8d&pid=1-s2.0-S0891584924006476-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142145398","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":"Maternal riboflavin deficiency causes embryonic defects by activating ER stress-induced hepatocyte apoptosis pathway","authors":"","doi":"10.1016/j.freeradbiomed.2024.09.002","DOIUrl":"10.1016/j.freeradbiomed.2024.09.002","url":null,"abstract":"<div><p>Riboflavin deficiency (RD) induces liver damage, abnormal embryonic development, and high mortality. We hypothesized that the phenotype could be rescued by inhibiting ER stress. The objectives of the present study were to investigate the underlying molecular mechanisms of RD-induced embryonic defects using <em>in vitro</em> and <em>in vivo</em> models. Primary duck embryonic hepatocytes were treated with an ER stress inhibitor (4-PBA) or transfected with <em>CHOP siRNA</em>, and cultured in RD medium and riboflavin-sufficient (CON) medium for 8 days. Laying ducks (n = 20 cages/diet, 1 bird/cage) were fed an RD diet or CON diet for 14 wk, and the eggs were collected for hatching. At day 7 of incubation, the fertilized RD eggs were injected with or without 4-PBA into the yolk. RD decreased cell number and cell viability compared to the CON group, induced oxidative stress and apoptosis in primary duck embryonic hepatocytes. However, after being treated with an ER stress inhibitor (4-PBA) or transfected with <em>CHOP siRNA</em>, the apoptosis rate in RD hepatocytes decreased by 60.6 % and 86.1 %, respectively, being equal to the CON. These results indicated that RD-induced hepatocyte apoptosis is mediated by ER stress and the CHOP pathway. <em>In vivo</em>, RD embryos showed low hatchability, abnormal development, liver damage, ER stress, and apoptosis compared to the CON group. However, 4-PBA administration, as a model of ER stress inhibition, substantially restored embryonic development and alleviated liver damage in the RD group, including ER stress and apoptosis. Notably, hatchability in the RD group increased from 21.7 % to 72.7 % after 4-PBA treatment, though it remained less than the CON group (87.7 %). These results implicated ER stress-CHOP-apoptosis pathway as molecular mechanisms underlying RD-induced abnormal embryonic development and death, this target with potential for therapy or intervention.</p></div>","PeriodicalId":12407,"journal":{"name":"Free Radical Biology and Medicine","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0891584924006385/pdfft?md5=c30b792eba6a446c3209516ffc6ef2a2&pid=1-s2.0-S0891584924006385-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142145399","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":"Diabesity alters the protective effects of estrogens on endothelial function through adipose tissue secretome","authors":"","doi":"10.1016/j.freeradbiomed.2024.09.001","DOIUrl":"10.1016/j.freeradbiomed.2024.09.001","url":null,"abstract":"<div><p>Estrogens have a well-known protective role in the development of the metabolic syndrome. Nevertheless, recent epidemiological data question the cardioprotective effect of estrogens in obese and diabetic women. In this context, white adipose tissue (WAT) becomes dysfunctional, which has an impact on the cardiovascular system. The aim of the study was to elucidate the role of 17β-estradiol (E2) in the interplay between adipose tissue and endothelial function in an animal model of diabesity. We used ZDF (<em>fa/fa</em>) female rats subjected to ovariectomy (OVA), OVA + E2 or sham operated, as well as non-obese non-diabetic ZDF (fa/+) rats. Endothelial function and vascular remodeling markers were assessed in the aorta, while mitochondrial function, oxidative stress, and adiponectin production were analyzed in gonadal WAT. Conditioned media from gonadal WAT explants were used to assess the effects of WAT secretome on HUVEC. Additionally, the adiponectin receptor agonist AdipoRON and E2 were utilized to examine potential interactions. Ovariectomy ameliorated the WAT dysfunction associated to the obese and diabetic state and promoted adiponectin secretion, effects that were linked to a reduction of endothelial dysfunction and inflammatory markers in the aorta of OVA rats and in HUVEC treated with OVA-conditioned media. Our findings provide evidence supporting the idea that in the context of obesity and diabetes, ovariectomy improves <span>WAT</span> secretome and positively impacts endothelial function, suggesting a detrimental role for E2. Additionally, our results point to adiponectin as the primary driver of the effects exerted by ovariectomy on the adipovascular axis.</p></div>","PeriodicalId":12407,"journal":{"name":"Free Radical Biology and Medicine","volume":null,"pages":null},"PeriodicalIF":7.1,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0891584924006397/pdfft?md5=e67ba0c404a3851699ad6d6ca1ea0add&pid=1-s2.0-S0891584924006397-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142145396","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}