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Deeper insight into ferroptosis: association with Alzheimer's, Parkinson's disease, and brain tumors and their possible treatment by nanomaterials induced ferroptosis. 更深入地了解铁下垂:与阿尔茨海默病、帕金森病和脑肿瘤的关系,以及纳米材料诱导铁下垂的可能治疗方法。
IF 3.8 2区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2023-12-01 Epub Date: 2023-11-27 DOI: 10.1080/13510002.2023.2269331
Virendra Kumar Yadav, Nisha Choudhary, Amel Gacem, Rakesh Kumar Verma, Mohd Abul Hasan, Mohammad Tarique Imam, Ziyad Saeed Almalki, Krishna Kumar Yadav, Hyun-Kyung Park, Tathagata Ghosh, Pankaj Kumar, Ashish Patel, Haresh Kalasariya, Byong-Hun Jeon, Hassan Ali AlMubarak

Ferroptosis is an emerging and novel type of iron-dependent programmed cell death which is mainly caused by the excessive deposition of free intracellular iron in the brain cells. This deposited free iron exerts a ferroptosis pathway, resulting in lipid peroxidation (LiPr). There are mainly three ferroptosis pathways viz. iron metabolism-mediated cysteine/glutamate, and LiPr-mediated. Iron is required by the brain as a redox metal for several physiological activities. Due to the iron homeostasis balance disruption, the brain gets adversely affected which further causes neurodegenerative diseases (NDDs) like Parkinson's and Alzheimer's disease, strokes, and brain tumors like glioblastoma (GBS), and glioma. Nanotechnology has played an important role in the prevention and treatment of these NDDs. A synergistic effect of nanomaterials and ferroptosis could prove to be an effective and efficient approach in the field of nanomedicine. In the current review, the authors have highlighted all the latest research in the field of ferroptosis, specifically emphasizing on the role of major molecular key players and various mechanisms involved in the ferroptosis pathway. Moreover, here the authors have also addressed the correlation of ferroptosis with the pathophysiology of NDDs and theragnostic effect of ferroptosis and nanomaterials for the prevention and treatment of NDDs.

铁凋亡是一种新型的铁依赖性程序性细胞死亡,主要是由脑细胞内游离铁的过度沉积引起的。这种沉积的游离铁发挥铁下垂途径,导致脂质过氧化(LiPr)。铁下垂途径主要有铁代谢介导的半胱氨酸/谷氨酸和脂质酶介导的三种。铁作为一种氧化还原金属是大脑进行多种生理活动所必需的。由于铁体内平衡的破坏,大脑受到不利影响,进一步导致神经退行性疾病(ndd),如帕金森病和阿尔茨海默病,中风,脑肿瘤,如胶质母细胞瘤(GBS)和胶质瘤。纳米技术在这些ndd的预防和治疗中发挥了重要作用。纳米材料与铁下垂的协同效应可能是纳米医学领域的一种有效途径。在本文中,作者对铁下垂领域的最新研究进行了综述,重点介绍了铁下垂途径中主要关键分子的作用和各种机制。此外,作者还讨论了铁下垂与ndd的病理生理关系以及铁下垂和纳米材料在ndd预防和治疗中的诊断作用。
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引用次数: 0
Alleviate oxidative stress in diabetic retinopathy: antioxidant therapeutic strategies. 减轻糖尿病视网膜病变的氧化应激:抗氧化治疗策略。
IF 3.8 2区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2023-12-01 Epub Date: 2023-12-02 DOI: 10.1080/13510002.2023.2272386
Jie Gao, Liming Tao, Zhengxuan Jiang

Objectives: This review outlines the function of oxidative stress in DR and discusses therapeutic strategies to treat DR with antioxidants.

Methods: Published papers on oxidative stress in DR and therapeutic strategies to treat DR with antioxidants were collected and reviewed via database searching on PubMed.

Results: The abnormal development of DR is a complicated process. The pathogenesis of DR has been reported to involve oxidative stress, despite the fact that the mechanisms underlying this are still not fully understood. Excessive reactive oxygen species (ROS) accumulation can damage retina, eventually leading to DR. Increasing evidence have demonstrated that antioxidant therapy can alleviate the degeneration of retinal capillaries in DR.

Conclusion: Oxidative stress can play an important contributor in the pathogenesis of DR. Furthermore, animal experiments have shown that antioxidants are a beneficial therapy for treating DR, but more clinical trial data is needed.

目的:本文综述了氧化应激在DR中的作用,并讨论了抗氧化剂治疗DR的治疗策略。方法:通过PubMed数据库检索,收集已发表的DR氧化应激及抗氧化剂治疗DR的相关文献。结果:DR的异常发展是一个复杂的过程。据报道,DR的发病机制与氧化应激有关,尽管其机制尚不完全清楚。越来越多的证据表明,抗氧化治疗可以减轻DR视网膜毛细血管的变性。结论:氧化应激在DR的发病机制中起重要作用。动物实验表明抗氧化剂是治疗DR的有益药物,但还需要更多的临床试验数据。
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引用次数: 0
L-methionine protects against nephrotoxicity induced by methotrexate through modulation of redox status and inflammation. L-甲硫氨酸通过调节氧化还原状态和炎症来预防甲氨蝶呤诱导的肾毒性。
IF 3.8 2区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2023-12-01 Epub Date: 2023-11-06 DOI: 10.1080/13510002.2023.2270886
Wessam M Abdel-Wahab, Nada S Daifalla, Amina E Essawy

Objective: Methotrexate (MTX) is a drug used in the treatment of cancer and autoimmune disorders; however, its clinical use is limited because of serious side effects including renal toxicity. This study aimed to investigate the protective effect of Lmethionine (L-Met) on MTX toxicity in the kidneys of rats.Methods: Thirty male rats were divided equally into five groups: control (saline), Met400 (400 mg/kg L-Met), MTX (20 mg/kg MTX), MTX-Met300 (300 mg/kg L-Met and 20 mg/kg MTX), and MTX-Met400 (400 mg/kg L-Met and 20 mg/kg MTX). Rats were euthanized one day after the last dose administration (day 16) and serum and renal tissue samples were collected. Renal function and injury indices, oxidative stress/antioxidant indices and proinflammatory cytokines were evaluated.Results: The results showed that L-Met could effectively counteract the nephrotoxic effects of MTX, in a dose-related manner, by improving most of the tested parameters. Furthermore, the higher dose of L-Met was able to restore several parameters to normal levels. In addition, investigation of MTX-induced hematological changes revealed a corrective potential of L-Met.Conclusion: L-Met can be an effective adjuvant therapy to modulate renal toxicity associated with MTX because of its antioxidant and antiinflammatory effects.

目的:甲氨蝶呤(MTX)是治疗癌症和自身免疫性疾病的药物;然而,由于包括肾毒性在内的严重副作用,其临床应用受到限制。本研究旨在探讨蛋氨酸(L-Met)对MTX对大鼠肾脏毒性的保护作用。方法:30只雄性大鼠平均分为5组:对照组(生理盐水)、Met400(400mg/kg L-Met)、MTX(20mg/kg MTX)、MTX-Met300(300mg/kg L-Met20 mg/kg MTX)和MTX-Met400(400 mg/kg L-Met20 mg/kgMTX)。在最后一次给药后一天(第16天)对大鼠实施安乐死,并收集血清和肾组织样本。评估肾功能和损伤指数、氧化应激/抗氧化指数和促炎细胞因子。结果:L-Met可以通过改善大多数测试参数,以剂量相关的方式有效对抗MTX的肾毒性作用。此外,更高剂量的L-Met能够将几个参数恢复到正常水平。此外,对MTX诱导的血液学变化的研究揭示了L-Met的纠正潜力。结论:L-Met具有抗氧化和抗炎作用,是调节MTX相关肾毒性的有效辅助疗法。
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引用次数: 0
Sulforaphane attenuates irradiation induced testis injury in mice. 红豆杉可减轻辐照诱发的小鼠睾丸损伤
IF 3.8 2区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2023-12-01 Epub Date: 2023-12-05 DOI: 10.1080/13510002.2023.2279818
Yuanshuai Ran, Nengliang Duan, Zhixiang Gao, Yulong Liu, Xiaolong Liu, Boxin Xue

Objective: The testis is vulnerable to ionizing radiation, sexual dysfunction and male infertility are common problems after local radiation or whole-body exposure. Currently, there are no approved drugs for the prevention or treatment of radiation testicular injury. Sulforaphane (SFN) is an indirect antioxidant that induces phase II detoxification enzymes and antioxidant genes. Herein, we investigated the radiation protective effect of SFN on testicular injury in mice and its potential mechanism.

Materials and methods: Mice were randomly divided into blank control group (Ctrl), radiation + no pretreatment group (IR), and radiation + SFN groups (IRS). In the radiation + SFN groups, starting from 72 h before radiation, SFN solution was intraperitoneally injected once a day until they were sacrificed. Mice in the blank control group and the radiation + no pretreatment group were simultaneously injected intraperitoneally with an equal volume of the solvent used to dissolve SFN (PBS with a final concentration of 0.1%DMSO) until they were sacrificed. They were subjected to 6Mev-ray radiation to the lower abdominal testis area (total dose 2Gy). Twenty-four hours after radiation, six mice in each group were randomly sacrificed. Seventy-two hours after radiation, the remaining mice were sacrificed.

Results: The results showed that the harmful effects of ionizing radiation on testes were manifested as damage to histoarchitecture, increased oxidative stress, and apoptosis, and thus impaired male fertility. SFN injections can reverse these symptoms.

Conclusions: The results showed that SFN can improve the damage of mouse testis caused by irradiation. Furthermore, SFN prevents spermatogenesis dysfunction caused by ionizing radiation by activating Nrf2 and its downstream antioxidant gene.

目的:睾丸易受电离辐射,局部或全身照射后出现性功能障碍和男性不育等常见问题。目前,还没有批准用于预防或治疗放射性睾丸损伤的药物。萝卜硫素(sulforaphan, SFN)是一种诱导II期解毒酶和抗氧化基因的间接抗氧化剂。本研究探讨了SFN对小鼠睾丸损伤的辐射保护作用及其可能机制。材料与方法:将小鼠随机分为空白对照组(Ctrl)、辐射+无预处理组(IR)和辐射+ SFN组(IRS)。放疗+ SFN组,从放疗前72 h开始,每天腹腔注射SFN溶液1次,直至死亡。空白对照组和放疗+无预处理组小鼠同时腹腔注射等量的SFN溶解溶剂(终浓度为0.1%DMSO的PBS),直至死亡。下腹部睾丸区接受6mev射线照射(总剂量2Gy)。放射24小时后,每组随机处死6只小鼠。放射72小时后,其余小鼠被处死。结果:电离辐射对睾丸的有害影响表现为组织结构损伤、氧化应激增加、细胞凋亡增加,从而损害男性生育能力。SFN注射可以逆转这些症状。结论:SFN对小鼠睾丸辐照损伤有改善作用。此外,SFN通过激活Nrf2及其下游抗氧化基因来防止电离辐射引起的精子发生功能障碍。
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引用次数: 0
LncRNA Fendrr: involvement in the protective role of nucleolin against H2O2-induced injury in cardiomyocytes. LncRNA-Fendrr:参与核仁素对H2O2诱导的心肌细胞损伤的保护作用。
IF 3.8 2区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2023-12-01 DOI: 10.1080/13510002.2023.2168626
Cheng Chen, Xiaofang Lin, Yuting Tang, Hui Sun, Leijing Yin, Zhengyang Luo, Shuxin Wang, Pengfei Liang, Bimei Jiang

Background: Nucleolin is a multifunctional nucleolar protein with RNA-binding properties. Increased nucleolin expression protects cells from H2O2-induced damage, but the mechanism remains unknown. Long noncoding RNAs (lncRNAs) play crucial roles in cardiovascular diseases. However, the biological functions and underlying mechanisms of lncRNAs in myocardial injury remain unclear.Methods: In a nucleolin-overexpressing cardiac cell line, high-throughput technology was used to identify lncRNAs controlled by nucleolin. Cell counting kit-8 assay was used to determine cell viability, lactate dehydrogenase (LDH) assay to detect cell death, caspase activity assay and propidium iodide staining to confirm cell apoptosis, and RNA immunoprecipitation to examine the interaction between Fendrr and nucleolin.Results: We found that Fendrr expression was significantly downregulated in mouse hearts subjected to myocardial ischemia-reperfusion (MI/R) injury. High Fendrr expression abrogated H2O2-mediated injury in cardiomyocytes as evidenced by increased cell viability and decreased cell apoptosis. Conversely, Fendrr knockdown exacerbated the cardiomyocytes injury. Also, nucleolin overexpression inhibits Fendrr downregulation in H2O2-induced cardiomyocyte injury. Fendrr overexpression significantly reversed the role of the suppression of nucleolin expression in H2O2-induced cardiomyocytes.Conclusion: LncRNA Fendrr is involved in the cardioprotective effect of nucleolin against H2O2-induced injury and may be a potential therapeutic target for oxidative stress-induced myocardial injury.

背景:核苷是一种具有RNA结合特性的多功能核仁蛋白。核仁素表达增加可保护细胞免受H2O2诱导的损伤,但其机制尚不清楚。长链非编码RNA(lncRNA)在心血管疾病中起着至关重要的作用。然而,lncRNA在心肌损伤中的生物学功能和潜在机制尚不清楚。方法:在过表达核仁素的心脏细胞系中,采用高通量技术鉴定由核仁素控制的lncRNA。细胞计数试剂盒-8测定法用于测定细胞活力,乳酸脱氢酶(LDH)测定法用于检测细胞死亡,胱天蛋白酶活性测定法和碘化丙啶染色法用于确认细胞凋亡,RNA免疫沉淀法用于检测芬德尔和核仁素之间的相互作用。结果:我们发现在心肌缺血再灌注(MI/R)损伤的小鼠心脏中,Fendrr的表达显著下调。Fendrr的高表达消除了H2O2介导的心肌细胞损伤,细胞活力增加,细胞凋亡减少。相反,芬德尔的敲除加重了心肌细胞的损伤。此外,在H2O2诱导的心肌细胞损伤中,核仁素过表达抑制Fendrr下调。Fendrr过表达显著逆转了H2O2诱导的心肌细胞中核仁素表达的抑制作用。结论:LncRNA-Fendrr参与了核仁素对H2O2诱导的心肌损伤的保护作用,可能是氧化应激诱导心肌损伤的潜在治疗靶点。
{"title":"LncRNA Fendrr: involvement in the protective role of nucleolin against H<sub>2</sub>O<sub>2</sub>-induced injury in cardiomyocytes.","authors":"Cheng Chen, Xiaofang Lin, Yuting Tang, Hui Sun, Leijing Yin, Zhengyang Luo, Shuxin Wang, Pengfei Liang, Bimei Jiang","doi":"10.1080/13510002.2023.2168626","DOIUrl":"10.1080/13510002.2023.2168626","url":null,"abstract":"<p><p><b>Background:</b> Nucleolin is a multifunctional nucleolar protein with RNA-binding properties. Increased nucleolin expression protects cells from H<sub>2</sub>O<sub>2</sub>-induced damage, but the mechanism remains unknown. Long noncoding RNAs (lncRNAs) play crucial roles in cardiovascular diseases. However, the biological functions and underlying mechanisms of lncRNAs in myocardial injury remain unclear.<b>Methods:</b> In a nucleolin-overexpressing cardiac cell line, high-throughput technology was used to identify lncRNAs controlled by nucleolin. Cell counting kit-8 assay was used to determine cell viability, lactate dehydrogenase (LDH) assay to detect cell death, caspase activity assay and propidium iodide staining to confirm cell apoptosis, and RNA immunoprecipitation to examine the interaction between Fendrr and nucleolin.<b>Results:</b> We found that Fendrr expression was significantly downregulated in mouse hearts subjected to myocardial ischemia-reperfusion (MI/R) injury. High Fendrr expression abrogated H<sub>2</sub>O<sub>2</sub>-mediated injury in cardiomyocytes as evidenced by increased cell viability and decreased cell apoptosis. Conversely, Fendrr knockdown exacerbated the cardiomyocytes injury. Also, nucleolin overexpression inhibits Fendrr downregulation in H<sub>2</sub>O<sub>2</sub>-induced cardiomyocyte injury. Fendrr overexpression significantly reversed the role of the suppression of nucleolin expression in H<sub>2</sub>O<sub>2</sub>-induced cardiomyocytes.<b>Conclusion:</b> LncRNA Fendrr is involved in the cardioprotective effect of nucleolin against H<sub>2</sub>O<sub>2</sub>-induced injury and may be a potential therapeutic target for oxidative stress-induced myocardial injury.</p>","PeriodicalId":21096,"journal":{"name":"Redox Report","volume":"28 1","pages":"2168626"},"PeriodicalIF":3.8,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9891159/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10340719","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
D-limonene (5 (one-methyl-four-[1-methylethenyl]) cyclohexane) diminishes CCl4-induced cardiac toxicity by alleviating oxidative stress, inflammatory and cardiac markers. D-柠檬烯(5(一甲基四-[1-甲基乙烯基])环己烷)通过减轻氧化应激、炎症和心脏标志物来减少CCl4诱导的心脏毒性。
IF 3.8 2区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2022-12-01 DOI: 10.1080/13510002.2022.2062947
Rana M AlSaffar, Summya Rashid, Sheikh Bilal Ahmad, Muneeb U Rehman, Ishraq Hussain, Sheikh Parvaiz Ahmad, Majid Ahmad Ganaie

Background: The cardiovascular crisis is advancing rapidly throughout the world. A large number of studies have shown that plant polyphenols affect major mechanisms involved in cardiovascular events through their action on the antioxidant system, signaling, and transcription pathways. D-limonene, a monocyclic monoterpene obtained from citrus fruits, is reported to possess many pharmacological activities.Methods: The experiment was designed to determine the protective effect of D-limonene against cardiac injury induced by CCl4 in Wistar rats. Rats were treated with two doses of D-limonene against cardiac injury induced by CCl4. Serum toxicity markers, cardiac toxicity biomarker enzymes, inflammatory mediators, anti-oxidant armory, lipid peroxidation, lipid profile, and histology were done.Results: CCl4 intoxication resulted in a substantial rise in FFA, TC, TG, PL, LDL, VLDL, and a reduction in HDL, restoring these changes with the administration of D-limonene at a dosage of 200 mg/kg. CCl4 administration also resulted in lipid oxidation and decreased antioxidant activity. At the same time, D-limonene at a dosage of 200 mg/kg body weight inhibited LPO and restored in vivo antioxidant components to normal. CCl4 intoxication also resulted in a significant increase in inflammatory markers like IL-6, TNF-α, high sensitivity Corticotropin Releasing Factor (Hs-CRF), and biomarkers of cardiac toxicity like alanine aminotransferase (ALT), lactate dehydrogenase (LDH), creatine kinase (CK), creatine kinase MB (CKMB), and Troponin I & troponin-t activities. D-limonene reversed all these changes to normal. Histology further confirmed our obtained results.Conclusion: These findings indicate that D-limonene can ameliorate cardiac injury at a 200 mg/kg body weight dosage. Henceforth, D-Limonene intervenes in mediating CCl4 induced toxicity by various signaling pathways.

背景:心血管危机在全球范围内迅速发展。大量研究表明,植物多酚通过对抗氧化系统、信号传导和转录途径的作用,影响心血管事件的主要机制。D-柠檬烯是从柑桔果实中提取的一种单环单萜,具有多种药理活性。方法:本实验旨在测定D-柠檬烯对CCl4所致Wistar大鼠心脏损伤的保护作用。用两种剂量的D-柠檬烯对CCl4诱导的心脏损伤进行治疗。进行血清毒性标志物、心脏毒性生物标志物酶、炎症介质、抗氧化剂库、脂质过氧化、脂质图谱和组织学检查。结果:CCl4中毒导致FFA、TC、TG、PL、LDL、VLDL显著升高,HDL降低,以200mg/kg的剂量给予D-柠檬烯可恢复这些变化。CCl4给药也导致脂质氧化和抗氧化活性降低。同时,D-柠檬烯在200mg/kg体重的剂量下抑制LPO,并使体内抗氧化成分恢复正常。CCl4中毒还导致炎症标志物如IL-6、TNF-α、高敏性皮质酮释放因子(Hs-CRF)以及心脏毒性生物标志物如丙氨酸氨基转移酶(ALT)、乳酸脱氢酶(LDH)、肌酸激酶(CK)、肌酸酶MB(CKMB)和肌钙蛋白I和肌钙蛋白t活性显著增加。D-柠檬烯使所有这些变化恢复正常。组织学进一步证实了我们获得的结果。结论:D-柠檬烯在200mg/kg体重剂量下可改善心脏损伤。自此,D-柠檬烯通过各种信号通路参与介导CCl4诱导的毒性。
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引用次数: 8
Effect of 6-week curcumin supplementation on aerobic capacity, antioxidant status and sirtuin 3 level in middle-aged amateur long-distance runners. 6周补充姜黄素对中年业余长跑运动员有氧能力、抗氧化状态和sirtuin 3水平的影响。
IF 3.8 2区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2022-12-01 DOI: 10.1080/13510002.2022.2123882
Sebastian Bańkowski, Miroslav Petr, Michał Rozpara, Ewa Sadowska-Krępa

Background: The study was undertaken to evaluate the effect of 6-week supplementation with a daily dose of 2g of curcumin on VO2max and prooxidant/antioxidant homeostasis in middle-aged amateur long-distance runners during the preparatory period of the macrocycle.

Methods: Thirty runners were randomly assigned to a placebo group (PL) and a curcumin-supplemented group (CU). Their VO2max was assessed before supplementation and after 6 weeks of supplementation. Venous blood samples were collected from the participants at rest, immediately after exercise, and after 1h of recovery to evaluate the activity of antioxidant enzymes (SOD, CAT, GPx), non-enzymatic antioxidants (GSH, UA) and sirtuin 3 level (SIRT 3), as well as the levels of oxidative stress markers (TOS/TOC, MDA, and 8-OHdG) and muscle damage markers (CK, LDH, and Mb).

Results: VO2max, the activity of enzymatic antioxidants, the concentrations of non-enzymatic antioxidants, the levels of oxidative stress markers, and the levels of muscle damage markers did not change significantly in the CU group over 6 weeks of supplementation with curcumin. However, the resting concentration of SIRT 3 was found to be significantly higher (p ≤ 0.05) compared with pre-supplementation.

Conclusion: Curcumin supplementation does not have a significant effect on VO2max and prooxidant/antioxidant homeostasis in runners.

背景:本研究旨在评估在大周期准备阶段,中年业余长跑运动员在6周内每天补充2g姜黄素对VO2max和促氧化/抗氧化稳态的影响。方法:30名跑步者随机分为安慰剂组(PL)和姜黄素补充组(CU)。在补充前和补充6周后评估他们的VO2max。分别在休息、运动后和恢复后1小时采集静脉血,评估抗氧化酶(SOD、CAT、GPx)、非酶抗氧化剂(GSH、UA)和sirtuin 3水平的活性,以及氧化应激标志物(TOS/TOC、MDA和8-OHdG)和肌肉损伤标志物(CK、LDH和Mb)的水平。结果:在补充姜黄素6周后,CU组的VO2max、酶促抗氧化剂活性、非酶促抗氧化剂浓度、氧化应激标志物水平和肌肉损伤标志物水平均无显著变化。然而,与补充前相比,SIRT - 3的静息浓度显著升高(p≤0.05)。结论:补充姜黄素对跑步者的VO2max和促氧化/抗氧化稳态没有显著影响。
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引用次数: 3
Psychostimulants influence oxidative stress and redox signatures: the role of DNA methylation. 精神兴奋剂影响氧化应激和氧化还原特征:DNA甲基化的作用。
IF 5.2 2区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2022-12-01 DOI: 10.1080/13510002.2022.2043224
Vaishnavi Sundar, Tamizhselvi Ramasamy, Mayur Doke, Thangavel Samikkannu

Objective: Psychostimulant use induces oxidative stress and alters redox imbalance, influencing epigenetic signatures in the central nervous system (CNS). Among the various epigenetic changes, DNA methylation is directly linked to oxidative stress metabolism via critical redox intermediates such as NAD+, S-adenosylmethionine (SAM), and 2-oxoglutarate. Fluctuations in these intermediates directly influence epigenetic signatures, which leads to detectable alterations in gene expression and protein modification. This review focuses on recent advances in the impact of psychostimulant use on redox-imbalance-induced DNA methylation to develop novel epigenetics-based early interventions. Methods: This review is based on collective research data obtained from the PubMed, Science Direct, and Medline databases. The keywords used in the electronic search in these databases were redox, substance use disorder, psychostimulants, DNA methylation, and neurological diseases. Results: Instability in DNA methylation levels and redox expression effects are reported in various behavioral models stimulated by psychostimulants and opioids, indicating the widespread involvement of epigenetic changes in DNA methylation signatures in neurological disorders. Discussion: This review summarizes the need for more studies and experimental evaluations of DNA-methylation-based strategies that may help to understand the association between psychostimulant use and oxidative stress or redox-linked metabolic recalibration influencing neuronal impairments.

目的:精神兴奋剂的使用诱导氧化应激并改变氧化还原失衡,影响中枢神经系统(CNS)的表观遗传学特征。在各种表观遗传学变化中,DNA甲基化通过关键的氧化还原中间体如NAD+、S-腺苷甲硫氨酸(SAM)和2-氧戊二酸与氧化应激代谢直接相关。这些中间体的波动直接影响表观遗传学特征,从而导致基因表达和蛋白质修饰的可检测变化。这篇综述的重点是使用精神刺激剂对氧化还原失衡诱导的DNA甲基化的影响的最新进展,以开发新的基于表观遗传学的早期干预措施。方法:本综述基于从PubMed、Science Direct和Medline数据库获得的集体研究数据。在这些数据库的电子搜索中使用的关键词是氧化还原、物质使用障碍、精神刺激剂、DNA甲基化和神经疾病。结果:据报道,在精神刺激剂和阿片类药物刺激的各种行为模型中,DNA甲基化水平和氧化还原表达效应不稳定,这表明DNA甲基化特征的表观遗传学变化广泛参与神经疾病。讨论:这篇综述总结了对基于DNA甲基化的策略进行更多研究和实验评估的必要性,这可能有助于理解精神刺激剂的使用与影响神经元损伤的氧化应激或氧化还原相关代谢重新校准之间的关联。
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引用次数: 0
Damage-associated molecular patterns in vitiligo: igniter fuse from oxidative stress to melanocyte loss. 白癜风损伤相关的分子模式:从氧化应激到黑素细胞损失的引信。
IF 3.8 2区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2022-12-01 DOI: 10.1080/13510002.2022.2123864
Jingying Wang, Yinghao Pan, Guangmin Wei, Hanxiao Mao, Rulan Liu, Yuanmin He

Objectives: The pathogenesis of vitiligo remains unclear. In this review, we comprehensively describe the role of damage associated molecular patterns (DAMPs) during vitiligo pathogenesis.

Methods: Published papers on vitiligo, oxidative stress and DAMPs were collected and reviewed via database searching on PubMed, MEDLINE and Embase, etc.

Results: Oxidative stress may be an important inducer of vitiligo. At high oxidative stress levels, damage-associated molecular patterns (DAMPs) are released from keratinocytes or melanocytes in the skin and induce downstream immune responses during vitiligo. Treatment regimens targeting DAMPs can effectively improve disease severity.

Discussion: DAMPs play key roles in initiating host defenses against danger signals, deteriorating the condition of vitiligo. DAMP levels in serum and skin may be used as biomarkers to indicate vitiligo activity and prognosis. Targeted therapies, incorporating HMGB1, Hsp70, and IL-15 could significantly improve disease etiology. Thus, novel strategies could be identified for vitiligo treatment by targeting DAMPs.

目的:白癜风的发病机制尚不清楚。在这篇综述中,我们全面描述了损伤相关分子模式(DAMPs)在白癜风发病过程中的作用。方法:通过检索PubMed、MEDLINE、Embase等数据库,收集有关白癜风、氧化应激和DAMPs的相关文献,并进行回顾性分析。结果:氧化应激可能是白癜风的重要诱因。在高氧化应激水平下,皮肤中的角质形成细胞或黑素细胞释放损伤相关分子模式(DAMPs),并在白癜风期间诱导下游免疫反应。针对DAMPs的治疗方案可以有效地改善疾病的严重程度。讨论:DAMPs在启动宿主防御危险信号,恶化白癜风病情方面发挥关键作用。血清和皮肤中的DAMP水平可作为白癜风活动和预后的生物标志物。结合HMGB1、Hsp70和IL-15的靶向治疗可显著改善疾病病因学。因此,可以通过靶向DAMPs来确定白癜风治疗的新策略。
{"title":"Damage-associated molecular patterns in vitiligo: igniter fuse from oxidative stress to melanocyte loss.","authors":"Jingying Wang,&nbsp;Yinghao Pan,&nbsp;Guangmin Wei,&nbsp;Hanxiao Mao,&nbsp;Rulan Liu,&nbsp;Yuanmin He","doi":"10.1080/13510002.2022.2123864","DOIUrl":"https://doi.org/10.1080/13510002.2022.2123864","url":null,"abstract":"<p><strong>Objectives: </strong>The pathogenesis of vitiligo remains unclear. In this review, we comprehensively describe the role of damage associated molecular patterns (DAMPs) during vitiligo pathogenesis.</p><p><strong>Methods: </strong>Published papers on vitiligo, oxidative stress and DAMPs were collected and reviewed via database searching on PubMed, MEDLINE and Embase, etc.</p><p><strong>Results: </strong>Oxidative stress may be an important inducer of vitiligo. At high oxidative stress levels, damage-associated molecular patterns (DAMPs) are released from keratinocytes or melanocytes in the skin and induce downstream immune responses during vitiligo. Treatment regimens targeting DAMPs can effectively improve disease severity.</p><p><strong>Discussion: </strong>DAMPs play key roles in initiating host defenses against danger signals, deteriorating the condition of vitiligo. DAMP levels in serum and skin may be used as biomarkers to indicate vitiligo activity and prognosis. Targeted therapies, incorporating HMGB1, Hsp70, and IL-15 could significantly improve disease etiology. Thus, novel strategies could be identified for vitiligo treatment by targeting DAMPs.</p>","PeriodicalId":21096,"journal":{"name":"Redox Report","volume":"27 1","pages":"193-199"},"PeriodicalIF":3.8,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9518600/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9211143","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
Suppression of glutathione system and upregulation of caspase 3-dependent apoptosis mediate rohypnol-induced gastric injury 谷胱甘肽系统的抑制和caspase 3依赖性细胞凋亡的上调介导罗苯诺诱导的胃损伤
IF 3.8 2区 生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2022-05-10 DOI: 10.1080/13510002.2022.2074128
R. Akhigbe, D. T. Oluwole, T. E. Adegoke, M. Hamed, D. Anyogu, A. Ajayi
ABSTRACT Objectives: This study investigated the impact of rohypnol on gastric tissue integrity. Methods: Forty male Wistar rats were randomized into control, low dose rohypnol-treated, high dose rohypnol-treated, low dose rohypnol-treated recovery and high dose rohypnol-treated recovery groups. Results: Rohypnol caused significant rise in gastric malondialdehyde (MDA), oxidized glutathione (GSSG), nitric oxide (NO), tumour necrotic factor-α (TNF-α), and interleukin-6 (IL-6) levels. Also, rohypnol caused reductions in gastric reduced glutathione (GSH) (as well as GSH/GSSG), and activities of superoxide dismutase (SOD), catalase, glutathione-S-transferase (GST), glutathione peroxidase (GPx), cyclo-oxygenase (COX-2). Furthermore, rohypnol upregulated caspase 3 activity and induced gastric DNA damage, evident by a rise in 8-hydroxydeoxyguanosine (8-OHdG) and DNA fragmentation index (DFI) in gastric tissue. These alterations were coupled with reduced gastric weight and distorted gastric cytoarchitecture. Cessation of rohypnol caused a significant but not complete reversal of rohypnol-induced gastric damage. Conclusion: This study revealed that rohypnol induced gastric injury by suppressing glutathione content and COX-2 activity, and upregulating caspase 3-dependent apoptosis, which was partly reversed by rohypnol withdrawal.
【摘要】目的:研究迷迭香对胃组织完整性的影响。方法:40只雄性Wistar大鼠随机分为对照组、低剂量罗安诺治疗组、高剂量罗安诺治疗组、低剂量罗安诺治疗恢复期组和高剂量罗安诺治疗恢复期组。结果:迷迭香致胃丙二醛(MDA)、氧化谷胱甘肽(GSSG)、一氧化氮(NO)、肿瘤坏死因子-α (TNF-α)、白细胞介素-6 (IL-6)水平显著升高。此外,rohypnol引起胃还原性谷胱甘肽(GSH)(以及GSH/GSSG)和超氧化物歧化酶(SOD)、过氧化氢酶、谷胱甘肽s -转移酶(GST)、谷胱甘肽过氧化物酶(GPx)、环加氧酶(COX-2)活性的降低。此外,rohypnol上调caspase 3活性,诱导胃DNA损伤,表现为胃组织中8-羟基脱氧鸟苷(8-OHdG)和DNA片段化指数(DFI)的升高。这些改变伴随着胃重量减轻和胃细胞结构扭曲。停止服用rohypnol可显著但不完全逆转rohypnol引起的胃损伤。结论:rohypnol通过抑制谷胱甘肽含量和COX-2活性,上调caspase 3依赖性细胞凋亡诱导胃损伤,该作用可被rohypnol停药部分逆转。
{"title":"Suppression of glutathione system and upregulation of caspase 3-dependent apoptosis mediate rohypnol-induced gastric injury","authors":"R. Akhigbe, D. T. Oluwole, T. E. Adegoke, M. Hamed, D. Anyogu, A. Ajayi","doi":"10.1080/13510002.2022.2074128","DOIUrl":"https://doi.org/10.1080/13510002.2022.2074128","url":null,"abstract":"ABSTRACT Objectives: This study investigated the impact of rohypnol on gastric tissue integrity. Methods: Forty male Wistar rats were randomized into control, low dose rohypnol-treated, high dose rohypnol-treated, low dose rohypnol-treated recovery and high dose rohypnol-treated recovery groups. Results: Rohypnol caused significant rise in gastric malondialdehyde (MDA), oxidized glutathione (GSSG), nitric oxide (NO), tumour necrotic factor-α (TNF-α), and interleukin-6 (IL-6) levels. Also, rohypnol caused reductions in gastric reduced glutathione (GSH) (as well as GSH/GSSG), and activities of superoxide dismutase (SOD), catalase, glutathione-S-transferase (GST), glutathione peroxidase (GPx), cyclo-oxygenase (COX-2). Furthermore, rohypnol upregulated caspase 3 activity and induced gastric DNA damage, evident by a rise in 8-hydroxydeoxyguanosine (8-OHdG) and DNA fragmentation index (DFI) in gastric tissue. These alterations were coupled with reduced gastric weight and distorted gastric cytoarchitecture. Cessation of rohypnol caused a significant but not complete reversal of rohypnol-induced gastric damage. Conclusion: This study revealed that rohypnol induced gastric injury by suppressing glutathione content and COX-2 activity, and upregulating caspase 3-dependent apoptosis, which was partly reversed by rohypnol withdrawal.","PeriodicalId":21096,"journal":{"name":"Redox Report","volume":"3 1","pages":"111 - 118"},"PeriodicalIF":3.8,"publicationDate":"2022-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79873643","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}
引用次数: 5
期刊
Redox Report
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