Redox Report最新文献_第10页

Comparison of the protective effect of cytosolic and mitochondrial Peroxiredoxin 5 against glutamate-induced neuronal cell death. 胞质过氧化氧还蛋白5和线粒体过氧化氧还蛋白5对谷氨酸诱导的神经元细胞死亡的保护作用比较。

IF 3.8 2区生物学

Redox Report Pub Date : 2021-12-01 DOI: 10.1080/13510002.2021.1901028

Mi Hye Kim, Da Yeon Kim, Hong Jun Lee, Young-Ho Park, Jae-Won Huh, Dong-Seok Lee

{"title":"Comparison of the protective effect of cytosolic and mitochondrial Peroxiredoxin 5 against glutamate-induced neuronal cell death.","authors":"Mi Hye Kim, Da Yeon Kim, Hong Jun Lee, Young-Ho Park, Jae-Won Huh, Dong-Seok Lee","doi":"10.1080/13510002.2021.1901028","DOIUrl":"https://doi.org/10.1080/13510002.2021.1901028","url":null,"abstract":"Objectives: Although glutamate is an essential factor in the neuronal system, excess glutamate can produce excitotoxicity. We previously reported that Peroxiredoxin 5 (Prx5) protects neuronal cells from glutamate toxicity via its antioxidant effects. However, it is unclear whether cytosolic or mitochondrial Prx5 provides greater neuroprotection. Here, we investigated differences in the neuroprotective effects of cytosolic and mitochondrial Prx5.Methods: We analyzed patterns of cytosolic and mitochondrial H2O2 generation in glutamate toxicity using HyPer protein. And then, we confirmed the change of intracellular ROS level and apoptosis with respective methods. The mitochondrial dynamics was assessed with confocal microscope imaging and western blotting.Results: We found that the level of mitochondrial H2O2 greatly increased compared to cytosolic H2O2 and it affected cytosolic H2O2 generation after glutamate treatment. In addition, we confirmed that mitochondrial Prx5 provides more effective neuroprotection than cytosolic Prx5.Discussion: Overall, our study reveals the mechanisms of cytosolic and mitochondrial ROS in glutamate toxicity. Our findings suggest that mitochondrial ROS and Prx5 are attractive therapeutic targets and that controlling these factors be useful for the prevention of neurodegenerative diseases.","PeriodicalId":21096,"journal":{"name":"Redox Report","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13510002.2021.1901028","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25479038","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}

引用次数: 2

Vitamin D levels and oxidative stress markers in patients hospitalized with COVID-19. COVID-19住院患者的维生素D水平和氧化应激标志物

IF 3.8 2区生物学

Redox Report Pub Date : 2021-12-01 DOI: 10.1080/13510002.2021.1999126

Emilija Atanasovska, Marija Petrusevska, Dragica Zendelovska, Katerina Spasovska, Milena Stevanovikj, Katerina Kasapinova, Kalina Gjorgjievska, Nikola Labachevski

{"title":"Vitamin D levels and oxidative stress markers in patients hospitalized with COVID-19.","authors":"Emilija Atanasovska, Marija Petrusevska, Dragica Zendelovska, Katerina Spasovska, Milena Stevanovikj, Katerina Kasapinova, Kalina Gjorgjievska, Nikola Labachevski","doi":"10.1080/13510002.2021.1999126","DOIUrl":"https://doi.org/10.1080/13510002.2021.1999126","url":null,"abstract":"Background: COVID-19 is characterized by the presence of oxidative stress. Vitamin D status has been reviewed as one of the factors that may affect disease severity. The aim of this study was to assess the relationship between serum vitamin D levels, oxidative stress markers and disease severity in hospitalized COVID-19 patients.Methods: Vitamin D levels were measured in 33 patients with COVID-19. The total antioxidant power and plasma peroxides were determined in serum.Results: Severe COVID-19 patients have lower vitamin D levels (18.39 ± 2.29 ng/mL vs. 28.47 ± 3.05 ng/mL, p < .05) and higher oxidative stress compared to the moderate group. When divided according to serum vitamin D levels, significantly higher values of LDH (604.8 ± 76.98 IU/mL vs. 261.57 ± 47.33 IU/mL) and D-dimer (5978 ± 2028ng/mL vs. 977.7 ± 172 ng/mL) were obtained in the group with vitamin D below 30 ng/mL, followed with significantly higher levels of plasma peroxides (d-ROMs: 414.9 ± 15.82 U.Carr vs. 352.4 ± 18.77 U.Carr; p < .05) and oxidative stress index (OSI: 92.25 ± 6.60 vs. 51.89 ± 6.45; p < .001).Conclusion: The presented data provide a justification to consider vitamin D as an important factor that could ameliorate disease severity through its anti-inflammatory and antioxidant effects.","PeriodicalId":21096,"journal":{"name":"Redox Report","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8567917/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39850516","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}

引用次数: 12

ROS-induced dramatic lipid changes in Arabidopsis. ros诱导拟南芥脂质发生剧烈变化。

IF 3.8 2区生物学

Redox Report Pub Date : 2021-12-01 DOI: 10.1080/13510002.2021.2002001

Tianlin Jin, Xue Wang, Zhuying Deng, Xiaofang Liu, Dacheng Liang

{"title":"ROS-induced dramatic lipid changes in Arabidopsis.","authors":"Tianlin Jin, Xue Wang, Zhuying Deng, Xiaofang Liu, Dacheng Liang","doi":"10.1080/13510002.2021.2002001","DOIUrl":"https://doi.org/10.1080/13510002.2021.2002001","url":null,"abstract":"Objectives: The beneficial role of ROS was probably in promoting intercellular communication by modifying membrane constituents [Liang D. A salutary role of reactive oxygen species in intercellular tunnel-mediated communication. Front Cell Dev Biol. 2018;6:2]. We investigated how the membrane lipids were responding to ROS and ROS inhibitors.Methods: To examine how ROS affected the lipid profiles, we used thin-layer chromatography to characterize lipid profiles in Arabidopsis plants. Then, the confocal microscopy imaging was used to confirm the change of membrane lipid in a plasma membrane marker line exposed to ROS and ROS inhibitors.Results: We found the relative contents of most lipids in H2O2-treated Arabidopsis plants were increased in roots, rather than in shoots. The increased fluorescent signal of membrane marker induced by H2O2 was mainly enriched in the conductive parts of roots. Several ROS inhibitors also strongly affected the lipid profiles. Among them, diethyldithiocarbamate (DDC) can progressively change the lipid profiles with treatment going on. Membrane marker signal was mainly accumulated in the root tips and epidermal cells after treatment by DDC.Discussion: H2O2 may enhance intercellular communication by inducing different lipid species in the conductive parts of roots. The lipid profiles were widely responding to various ROS reagents and might play a role in intercellular signaling.","PeriodicalId":21096,"journal":{"name":"Redox Report","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8583927/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39859368","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}

引用次数: 4

Saliva nitrite is higher in male children with autism spectrum disorder and positively correlated with serum nitrate. 患有自闭症谱系障碍的男性儿童唾液中亚硝酸盐含量较高，且与血清硝酸盐呈正相关。

IF 5.2 2区生物学

Redox Report Pub Date : 2021-12-01 DOI: 10.1080/13510002.2021.1959133

Lulu Yao, Huimin Fu, Lu Bai, Wenwen Deng, Fang Xie, Ying Li, Rong Zhang, Xinjie Xu, Ting Wang, Shenghan Lai, Jun Wang

{"title":"Saliva nitrite is higher in male children with autism spectrum disorder and positively correlated with serum nitrate.","authors":"Lulu Yao, Huimin Fu, Lu Bai, Wenwen Deng, Fang Xie, Ying Li, Rong Zhang, Xinjie Xu, Ting Wang, Shenghan Lai, Jun Wang","doi":"10.1080/13510002.2021.1959133","DOIUrl":"10.1080/13510002.2021.1959133","url":null,"abstract":"Objectives: Nitric oxide (NO) plays a vital role in neurological development. As an easily accessible and non-invasive fluid, saliva hasn't been evaluated for nitrite among children with autism spectrum disorder (ASD). This study aims to quantify saliva nitrite and explore its relation with serum NO.Methods: Saliva sampling and pretreatment methods were optimized, followed by NO measurement via chemiluminescence for 126 ASD children and 129 normally developing children (ND).Results: In the ASD group, saliva nitrite was significantly higher than that in the ND, with concentrations of 4.97 ± 3.77 μM and 2.66 ± 2.07 μM (p < 0.0001), respectively. Positive correlation was observed between saliva NO2- and serum NO3- in ASD children, which didn't exist in the ND group. Male children in the ASD group had significantly higher NO than that in boys of the ND group, without significant difference between girls in both groups. Correlation was not found between saliva or serum NO and severity of these ASD children.Discussion: It is reported for the first time that saliva nitrite was positively correlated with serum nitrate in ASD children, with significantly higher NO only in autistic boys. Non-invasive saliva might serve as a predictor of health status of ASD children.","PeriodicalId":21096,"journal":{"name":"Redox Report","volume":null,"pages":null},"PeriodicalIF":5.2,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/90/2f/YRER_26_1959133.PMC8330712.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39255635","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}

引用次数: 0

Serum of limb remote ischemic postconditioning inhibits fMLP-triggered activation and reactive oxygen species releasing of rat neutrophils. 肢体远端缺血后适应血清抑制fmlp触发的大鼠中性粒细胞激活和活性氧释放。

IF 3.8 2区生物学

Redox Report Pub Date : 2021-12-01 DOI: 10.1080/13510002.2021.1982515

Gangling Chen, Jiangwei Zhang, Mingyue Sheng, Sanli Zhang, Qi Wu, Lei Liu, Boyang Yu, Junping Kou

{"title":"Serum of limb remote ischemic postconditioning inhibits fMLP-triggered activation and reactive oxygen species releasing of rat neutrophils.","authors":"Gangling Chen, Jiangwei Zhang, Mingyue Sheng, Sanli Zhang, Qi Wu, Lei Liu, Boyang Yu, Junping Kou","doi":"10.1080/13510002.2021.1982515","DOIUrl":"https://doi.org/10.1080/13510002.2021.1982515","url":null,"abstract":"Objectives: The study explores the protective role of the peripheral serum of limb remote ischemic postconditioning (LRIP) in reducing the reactive oxygen species (ROS) levels and neutrophil activation, which are responsible for the deleterious reperfusion injury.Methods: LRIP was induced in Sprague-Dawley rats by three cycles of 5 min occlusion /5 min reperfusion on the left hind limb. The blood samples were collected before LRIP or 0 and 1 h after LRIP (named SerumSham, SerumLRIP0, SerumLRIP1, respectively). The effects of LRIP serum on ROS level and neutrophils activation were determined. The expression of MyD88-TRAF6-MAPKs and PI3K/AKT pathways in neutrophils were examined.Results: When compared with SerumSham, SerumLRIP0 and SerumLRIP1 significantly reduced the ROS released from neutrophils activated by fMLP. Meanwhile, the mRNA expression levels of NADPH oxidase subunit p22phox and multiple ROS-producing related key proteins, such as NADPH oxidase subunit p47phox ser 304, ser 345. MyD88, p-ERK, p-JNK and p-P38 expression of neutrophils were downregulated by SerumLRIP0 and SerumLRIP1. SerumLRIP1 also downregulated p47phox mRNA expression and tumor necrosis factor receptor-associated factor 6 (TRAF6) protein expression.Conclusion: LRIP serum protects against ROS level and neutrophils activation involving the MyD88-TRAF6-MAPKs. This finding provides new insight into the understanding of LRIP mechanisms.","PeriodicalId":21096,"journal":{"name":"Redox Report","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/f2/28/YRER_26_1982515.PMC8530488.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39529022","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}

引用次数: 1

Possible relationship between mitochondrial changes and oxidative stress under low dose-rate irradiation. 低剂量率辐照下线粒体变化与氧化应激之间的可能关系

IF 5.2 2区生物学

Redox Report Pub Date : 2021-12-01 DOI: 10.1080/13510002.2021.1971363

Qingmei Meng, Elena Karamfilova Zaharieva, Megumi Sasatani, Junya Kobayashi

{"title":"Possible relationship between mitochondrial changes and oxidative stress under low dose-rate irradiation.","authors":"Qingmei Meng, Elena Karamfilova Zaharieva, Megumi Sasatani, Junya Kobayashi","doi":"10.1080/13510002.2021.1971363","DOIUrl":"10.1080/13510002.2021.1971363","url":null,"abstract":"Objectives: High dose-rate ionizing radiation (IR) causes severe DSB damage, as well as reactive oxygen species (ROS) accumulation and oxidative stress. However, it is unknown what biological processes are affected by low dose-rate IR; therefore, the molecular relationships between mitochondria changes and oxidative stress in human normal cells was investigated after low dose-rate IR.Methods: We compared several cellular response between high and low dose-rate irradiation using cell survival assay, ROS/RNS assay, immunofluorescence and western blot analysis.Results: Reduced DSB damage and increased levels of ROS, with subsequent oxidative stress responses, were observed in normal cells after low dose-rate IR. Low dose-rate IR caused several mitochondrial changes, including morphology mass, and mitochondrial membrane potential, suggesting that mitochondrial damage was caused. Although damaged mitochondria were removed by mitophagy to stop ROS leakage, the mitophagy-regulatory factor, PINK1, was reduced following low dose-rate IR. Although mitochondrial dynamics (fission/fusion events) are important for the proper mitophagy process, some mitochondrial fusion factors decreased following low dose-rate IR.Discussion: The dysfunction of mitophagy pathway under low dose-rate IR increased ROS and the subsequent activation of the oxidative stress response.","PeriodicalId":21096,"journal":{"name":"Redox Report","volume":null,"pages":null},"PeriodicalIF":5.2,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8405122/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39345222","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}

引用次数: 0

Potentiality of ghrelin as antioxidant and protective agent. 胃饥饿素作为抗氧化剂和保护剂的潜力。

IF 3.8 2区生物学

Redox Report Pub Date : 2021-12-01 DOI: 10.1080/13510002.2021.1913374

Rachid Akki, Kawtar Raghay, Mohammed Errami

{"title":"Potentiality of ghrelin as antioxidant and protective agent.","authors":"Rachid Akki, Kawtar Raghay, Mohammed Errami","doi":"10.1080/13510002.2021.1913374","DOIUrl":"https://doi.org/10.1080/13510002.2021.1913374","url":null,"abstract":"Background: Oxidative stress is the result of cellular troubles related to aerobic metabolism. Furthermore, this stress is always associated with biological responses evoked by physical, chemical, environmental, and psychological factors. Several studies have developed many approaches of antioxidant defense to diminish the severity of many diseases. Ghrelin was originally identified from the rat stomach, and it is a potent growth hormone-releasing peptide that has pleiotropic functions.Methods: A systematic review was conducted within PubMed, ScienceDirect, MEDLINE, and Scopus databases using keywords such as ghrelin, antioxidant, oxidative stress, and systemic oxidative stress sensor.Results: In the last decade, many studies show that ghrelin exhibits protection effects against oxidative stress derived probably from its antioxidant effects. Pieces of evidence demonstrate that systemic oxidative stress increase ghrelin levels in the plasma. The expression of ghrelin and its receptor in ghrelin peripheral tissues and extensively in the central nervous system suggests that this endogenous peptide plays an important role as a systemic oxidative stress sensor.Conclusion: The current evidence confirms that ghrelin and its derived peptides (Desacyl-ghrelin, obestatin) act as a protective antioxidant agent. Therefore, stressor modality, duration, and intensity are the parameters of oxidative stress that must be taken into consideration to determine the role of ghrelin, Desacyl-ghrelin, and obestatin in the regulation of cell death pathways.","PeriodicalId":21096,"journal":{"name":"Redox Report","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13510002.2021.1913374","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25588228","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}

引用次数: 12

Zingerone (4-(four-hydroxy-3-methylphenyl) butane-two-1) modulates adjuvant-induced rheumatoid arthritis by regulating inflammatory cytokines and antioxidants. 姜酮(4-(4-羟基-3-甲基苯基)丁烷- 2 -1)通过调节炎症细胞因子和抗氧化剂调节佐剂诱导的类风湿性关节炎。

IF 3.8 2区生物学

Redox Report Pub Date : 2021-12-01 DOI: 10.1080/13510002.2021.1907518

Nazirah Bashir, Sheikh Bilal Ahmad, Muneeb U Rehman, Showkeen Muzamil, Rahil Razak Bhat, Manzoor Ur Rahman Mir, Gamal A Shazly, Mohamed A Ibrahim, Gehan M Elossaily, Abdelrahman Y Sherif, Mohsin Kazi

{"title":"Zingerone (4-(four-hydroxy-3-methylphenyl) butane-two-1) modulates adjuvant-induced rheumatoid arthritis by regulating inflammatory cytokines and antioxidants.","authors":"Nazirah Bashir, Sheikh Bilal Ahmad, Muneeb U Rehman, Showkeen Muzamil, Rahil Razak Bhat, Manzoor Ur Rahman Mir, Gamal A Shazly, Mohamed A Ibrahim, Gehan M Elossaily, Abdelrahman Y Sherif, Mohsin Kazi","doi":"10.1080/13510002.2021.1907518","DOIUrl":"10.1080/13510002.2021.1907518","url":null,"abstract":"Objective: Ginger (Zingiber officinale Roscoe) is considered to be one of the most commonly consumed dietary condiments of the world. The present study was designed to explicate the protective role of zingerone; an active ingredient of ginger in complete Freund's adjuvant (FCA)-immunized arthritic rats.Methods: 24 Wistar rats were divided into 4 groups with 6 rats each. Group I as control followed by group II, III and IV were treated with single intradermal injection of FCA (0.1 ml = 100 µg) to induce rheumatoid arthritis. Group III and IV were also administered with zingerone orally at 25 mg/kg b.w for 3 weeks at two different time points.Results: Adjuvant-treated rats exhibited a significant increase in lipid peroxidation and a reduction in the enzymatic antioxidants such as SOD, catalase and GPx, in the liver and joint tissues. Moreover, FCA inoculation resulted in the increase in levels of NF-κB, TGF-β, TNF-α, IL-1β, IL-6 and Hs-CRP and a decrease in IL-10 levels. Zingerone significantly reduced the levels of NF-κB, TGF-β, TNF-α, IL-1β, IL-6 and Hs-CRP and markedly increased IL-10 levels. Levels of antioxidant enzymes were also restored by zingerone treatment.Discussion: Oral administration of zingerone ameliorated inflammatory outburst and decreased oxidative stress, suggesting its role in the prevention of rheumatoid arthritis. Further mechanistic insights are necessary to study the exact mechanism involved.","PeriodicalId":21096,"journal":{"name":"Redox Report","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13510002.2021.1907518","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25533504","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}

引用次数: 16

Impact of glutathione on acute ischemic stroke severity and outcome: possible role of aminothiols redox status. 谷胱甘肽对急性缺血性脑卒中严重程度和预后的影响:氨基硫醇氧化还原状态的可能作用。

IF 3.8 2区生物学

Redox Report Pub Date : 2021-12-01 DOI: 10.1080/13510002.2021.1952819

Marina Yurievna Maksimova, Alexander Vladimirovich Ivanov, Edward Danielevich Virus, Ksenya Alexandrovna Nikiforova, Fatima Ramazanovna Ochtova, Ekaterina Taymurazovna Suanova, Maria Petrovna Kruglova, Mikhail Aleksanrovich Piradov, Aslan Amirkhanovich Kubatiev

{"title":"Impact of glutathione on acute ischemic stroke severity and outcome: possible role of aminothiols redox status.","authors":"Marina Yurievna Maksimova, Alexander Vladimirovich Ivanov, Edward Danielevich Virus, Ksenya Alexandrovna Nikiforova, Fatima Ramazanovna Ochtova, Ekaterina Taymurazovna Suanova, Maria Petrovna Kruglova, Mikhail Aleksanrovich Piradov, Aslan Amirkhanovich Kubatiev","doi":"10.1080/13510002.2021.1952819","DOIUrl":"https://doi.org/10.1080/13510002.2021.1952819","url":null,"abstract":"Objective: Acute brain ischemia is accompanied by a disruption of low-molecular-weight aminothiols (LMWTs) homeostasis, such as homocysteine (Hcy), cysteine (Cys), and glutathione (GSH). We investigated the redox balance of LMWTs in blood plasma and its influence on ischemic stroke severity and the functional outcome in patients with an acute period.Patients and methods: A total of 177 patients were examined. Total and reduced forms of LMWTs were determined in the first 10-24 h. Stroke severity and functional state were estimated using the National Institutes of Health Stroke Scale (NIHSS) and the modified Rankin Scale (mRs) at admission and after 21 days.Results: Patients with high levels of total Hcy (> 19 μM) showed significantly reduced redox statuses of all LMWTs. Patients with low total GSH levels (≤ 1.07 μM) were at an increased risk of higher stroke severity (NIHSS > 10) compared to patients with a total GSH level > 2.64 μM (age/gender-adjusted odds ratio: 4.69, 95% CI: 1.43-15.4).Discussion: (1) low total GSH level can be considered as a novel risk marker for the severity of acute stroke in conditions of low redox status of LMWTs and (2) high Hcy levels associated with low redox status of LMWTs.","PeriodicalId":21096,"journal":{"name":"Redox Report","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13510002.2021.1952819","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39163533","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}

引用次数: 6

Antioxidant potential of biflavonoid attenuates hyperglycemia by modulating the carbohydrate metabolic enzymes in high fat diet/streptozotocin induced diabetic rats. 双黄酮的抗氧化潜力通过调节高脂饮食/链脲佐菌素诱导的糖尿病大鼠的碳水化合物代谢酶来减轻高血糖。

IF 3.8 2区生物学

Redox Report Pub Date : 2020-12-01 DOI: 10.1080/13510002.2020.1722914

Sundaram Ramalingam, Muthu Karuppiah, Muthusamy Thiruppathi, Shanthi Palanivelu, Sachdanandam Panchanatham

{"title":"Antioxidant potential of biflavonoid attenuates hyperglycemia by modulating the carbohydrate metabolic enzymes in high fat diet/streptozotocin induced diabetic rats.","authors":"Sundaram Ramalingam, Muthu Karuppiah, Muthusamy Thiruppathi, Shanthi Palanivelu, Sachdanandam Panchanatham","doi":"10.1080/13510002.2020.1722914","DOIUrl":"https://doi.org/10.1080/13510002.2020.1722914","url":null,"abstract":"Objectives: The present study was to isolate the biflavonoid (a bimolecular kaemferol structured molecule) and test its efficacy on oxidative stress and carbohydrate metabolic key enzymes in control and high fat diet and streptozotocin -induced diabetic rats.Methods: Type 2 diabetes was induced in male albino wistar rats by feeding them with high fat diet comprising of 84.3% standard laboratory chow, 5% lard, 10% yolk powder, cholesterol 0.2%, and 0.5% bile salt for 2 weeks. After 2 weeks, the animals were kept in an overnight fast and injected with low dose of streptozotocin (35 mg/kg, dissolved in 0.1 M sodium citrate buffer, pH 4.5).Results: At the end of the experimental period, diabetic control rats showed significant increase in plasma glucose, homeostatic model assessment of insulin resistance (HOMA-IR), glycosylated hemoglobin (HbA1c) with concomitant decrease in plasma insulin, total hemoglobin and body weight. The activities of key enzymes of carbohydrate metabolism, lipid peroxidation markers, antioxidant enzymes, glycogen content and glycogen synthase and glycogen phosphorylase were also altered in diabetic rats.Discussion: Oral administration of biflavonoid to diabetic rats significantly ameliorated all the biochemical alterations to near normal levels. The effect produced by the biflavonoid on various parameters was comparable to that of metformin.","PeriodicalId":21096,"journal":{"name":"Redox Report","volume":null,"pages":null},"PeriodicalIF":3.8,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13510002.2020.1722914","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37605100","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}

引用次数: 10