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Lv C, Li Y, Wang T, Zhang Q, Qi J, Sima M, Li E, Qin T, Shi Z, Li F, Wang X, Sun W, Feng N, Yang S, Xia X, Jin N, Zhou Y, Gao Y. Taurolidine improved protection against highly pathogenetic avian influenza H5N1 virus lethal-infection in mouse model by regulating the NF-κB signaling pathway. Virol Sin 2023; 38:119-127. [PMID: 36450323 PMCID: PMC10006309 DOI: 10.1016/j.virs.2022.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 11/21/2022] [Indexed: 11/29/2022] Open
Abstract
Taurolidine (TRD), a derivative of taurine, has anti-bacterial and anti-tumor effects by chemically reacting with cell-walls, endotoxins and exotoxins to inhibit the adhesion of microorganisms. However, its application in antiviral therapy is seldom reported. Here, we reported that TRD significantly inhibited the replication of influenza virus H5N1 in MDCK cells with the half-maximal inhibitory concentration (EC50) of 34.45 μg/mL. Furthermore, the drug inhibited the amplification of the cytokine storm effect and improved the survival rate of mice lethal challenged with H5N1 (protection rate was 86%). Moreover, TRD attenuated virus-induced lung damage and reduced virus titers in mice lungs. Administration of TRD reduced the number of neutrophils and increased the number of lymphocytes in the blood of H5N1 virus-infected mice. Importantly, the drug regulated the NF-κB signaling pathway by inhibiting the separation of NF-κB and IκBa, thereby reducing the expression of inflammatory factors. In conclusion, our findings suggested that TRD could act as a potential anti-influenza drug candidate in further clinical studies.
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Affiliation(s)
- Chaoxiang Lv
- College of Life Sciences, Northeast Normal University, Changchun, Jilin, 130021, China; Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences. Changchun, 130122, China
| | - Yuanguo Li
- Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences. Changchun, 130122, China; College of Animal Medicine, Jilin University, Changchun, 130000, China
| | - Tiecheng Wang
- Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences. Changchun, 130122, China
| | - Qiqi Zhang
- College of Life Sciences, Northeast Normal University, Changchun, Jilin, 130021, China
| | - Jing Qi
- College of Life Sciences, Northeast Normal University, Changchun, Jilin, 130021, China; Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences. Changchun, 130122, China
| | - Mingwei Sima
- Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences. Changchun, 130122, China; College of Basic Medicine, Changchun University of Chinese Medicine, Changchun, 130117, China
| | - Entao Li
- Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences. Changchun, 130122, China
| | - Tian Qin
- College of Life Sciences, Northeast Normal University, Changchun, Jilin, 130021, China; Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences. Changchun, 130122, China
| | - Zhuangzhuang Shi
- Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences. Changchun, 130122, China; College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130033, China
| | - Fangxu Li
- Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences. Changchun, 130122, China; College of Life Sciences, Shandong Normal University, Jinan, 250014, China
| | - Xuefeng Wang
- Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences. Changchun, 130122, China
| | - Weiyang Sun
- Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences. Changchun, 130122, China
| | - Na Feng
- Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences. Changchun, 130122, China
| | - Songtao Yang
- Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences. Changchun, 130122, China
| | - Xianzhu Xia
- Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences. Changchun, 130122, China
| | - Ningyi Jin
- College of Life Sciences, Northeast Normal University, Changchun, Jilin, 130021, China; Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences. Changchun, 130122, China; College of Basic Medicine, Changchun University of Chinese Medicine, Changchun, 130117, China; College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130033, China.
| | - Yifa Zhou
- College of Life Sciences, Northeast Normal University, Changchun, Jilin, 130021, China.
| | - Yuwei Gao
- Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences. Changchun, 130122, China; College of Basic Medicine, Changchun University of Chinese Medicine, Changchun, 130117, China; College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130033, China; College of Life Sciences, Shandong Normal University, Jinan, 250014, China.
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Akın E, Sarıbeyoğlu K, Esen E, Aytaç E, Özbay G, Uzun H, Pekmezci S. Does taurolidine have any effect on liver regeneration and oxidation in the experimental hepatectomy model? Turk J Surg 2021. [DOI: 10.47717/turkjsurg.2021.4690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Objective: Taurolidine is a bicyclic molecule produced by the natural amino acid taurine. Antibacterial, antiendotoxic and cytoprotective effects of taurolidine have been shown experimentally. Data on the effects of taurolidine on oxidative stress and hepatic regeneration are limited. The aim of the study was to evaluate the effect of taurolidine on hepatic regeneration and oxidative stress in rats undergoing partial hepatectomy.
Material and Methods: Forty adult, male Wistar Albino rats were randomly divided into four equal groups: sham (S) group (n= 10), post-sham opera- tion taurolidine administered (ST) group (n= 10), partial hepatectomy (H) group (n= 10) and post-partial hepatectomy taurolidine administered (HT) group (n= 10). 100 mg/kg/day taurolidine was administered for seven days. Blood and liver tissue samples were collected on postoperative day seven. Liver tissue malondialdehyde, glutathione and Cu-Zn superoxide dismutase activity (SOD) were measured to assess oxidative stress. Binuclear hepato- cyte and Ki-67 antigen levels were measured to evaluate hepatic regeneration.
Results: There was no difference between the groups for malondialdehyde, Cu-Zn superoxide dismutase and glutathione levels (p> 0.05). Binuclear nuclei levels were comparable between the H and HT groups (p= 0.06), while taurolidine decreased binuclear hepatocyte levels in the sham operated groups (p= 0.02). Taurolidine application decreased Ki-67 levels after partial hepatectomy (p= 0.001).
Conclusion: Taurolidine may cause anti-regenerative effects after partial hepatectomy without causing oxidative damage.
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Iwegbulem O, Wang J, Pfirrmann RW, Redmond HP. The role of taurine derivatives in the putative therapy of COVID-19-induced inflammation. Ir J Med Sci 2021; 191:485-486. [PMID: 33598881 PMCID: PMC7889472 DOI: 10.1007/s11845-021-02522-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 01/15/2021] [Indexed: 11/28/2022]
Affiliation(s)
- Ogechi Iwegbulem
- Department of Academic Surgery, Cork University Hospital, University College Cork, Cork, Ireland.
| | - Jianghuai Wang
- Department of Academic Surgery, Cork University Hospital, University College Cork, Cork, Ireland
| | | | - Henry Paul Redmond
- Department of Academic Surgery, Cork University Hospital, University College Cork, Cork, Ireland
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Tong QH, Hu HY, Chai H, Wu AB, Guo XH, Wang S, Zhang YF, Fan XY. Dysregulation of the miR-1275/HK2 Axis Contributes to the Progression of Hypoxia/Reoxygenation-Induced Myocardial Injury. Arch Med Res 2021; 52:461-470. [PMID: 33551225 DOI: 10.1016/j.arcmed.2021.01.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 08/06/2020] [Accepted: 01/21/2021] [Indexed: 12/14/2022]
Abstract
OBJECTIVE This research was designed to investigate the function of miR-1275 in hypoxia/reoxygenation (H/R)-induced myocardial injury and its in-depth mechanism. METHODS Firstly, the differential expression of miR-1275 in patients with heart failure and healthy control were analyzed based on Gene Expression Omnibus (GEO) database. Then H/R model was constructed in vitro with AC16 cells. The qRT-PCR assay was performed to analyze the expression of miR-1275 in H/R-treated cells. Afterwards, CCK-8 assay and flow cytometry assay were carried out to detect the cells viability and apoptosis. Bioinformatics prediction, western blotting and dual-luciferase reporter assays were set to check the target gene of miR-1275. Finally, we used an Elisa to test the effect of miR-1275/HK2 axis on inflammatory factors. RESULTS We found that miR-1275 was highly expressed in patients with heart failure and H/R treated AC16 cells than that in control group, and inhibition of miR-1275 can alleviate induced-decrease of cell viability. Subsequently, we revealed that HK2 was a downstream target gene of miR-1275, which was lowly expressed in patients with heart failure. Furthermore, our data also suggested that inhibition of miR-1275 can significantly alleviate H/R-induced myocardial injury, which can also markedly decrease the concentration of pro-inflammatory factors TNF-α, IL-1 β and increase the concentration of anti-inflammatory factors IL-10 in H/R-treated AC16 cells, while knockdown of HK2 canceled the effect caused by miR-1275 deletion. CONCLUSIONS In summing, our results illustrated that miR-1275/HK2 axis act as a potential regulator to against H/R-induced AC16 cells injury through anti-inflammatory effect.
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Affiliation(s)
- Qin-Hong Tong
- Department of Cardiology, The First Peoples Hospital of Lanzhou, Lanzhou, P.R. China
| | - Hai-Ying Hu
- Department of Cardiology, The First Peoples Hospital of Lanzhou, Lanzhou, P.R. China
| | - Hui Chai
- Department of Cardiology, The First Peoples Hospital of Lanzhou, Lanzhou, P.R. China
| | - Ai-Bin Wu
- Department of Cardiology, The First Peoples Hospital of Lanzhou, Lanzhou, P.R. China
| | - Xiao-Hu Guo
- Department of Cardiology, The First Peoples Hospital of Lanzhou, Lanzhou, P.R. China
| | - Shan Wang
- Department of Cardiology, The First Peoples Hospital of Lanzhou, Lanzhou, P.R. China
| | - Yu-Feng Zhang
- Department of Cardiology, The First Peoples Hospital of Lanzhou, Lanzhou, P.R. China
| | - Xiao-Yong Fan
- Department of Cardiology, The First Peoples Hospital of Lanzhou, Lanzhou, P.R. China.
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Redmond HP, Neary PM, Jinih M, O'Connell E, Foley N, Pfirrmann RW, Wang JH, O'Leary DP. RandomiSed clinical trial assessing Use of an anti-inflammatoRy aGent in attenUating peri-operatiVe inflAmmatioN in non-meTastatic colon cancer - the S.U.R.G.U.V.A.N.T. trial. BMC Cancer 2018; 18:794. [PMID: 30081854 PMCID: PMC6091184 DOI: 10.1186/s12885-018-4641-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 06/27/2018] [Indexed: 12/22/2022] Open
Abstract
Background Peri-operative inflammation has been extensively highlighted in cancer patients as detrimental. Treatment strategies to improve survival for cancer patients through targeting peri-operative inflammation have yet to be devised. Methods We conducted a multi-centre, randomised controlled clinical trial using Taurolidine in non-metastatic colon cancer patients. Patients were randomly assigned to receive Taurolidine or a placebo. The primary endpoint for the study was the mean difference in day 1 IL-6 levels. Secondary clinical endpoints included rates of post-operative infections and tumor recurrence. Results A total of 293 patients were screened for trial inclusion. Sixty patients were randomised. Twenty-eight patients were randomised to placebo and 32 patients to Taurolidine. IL-6 levels were equivalent on day 1 post-operatively in both groups. However, IL-6 levels were significantly attenuated over the 7 day study period in the Taurolidine group compared to placebo (p = 0.04). In addition, IL-6 levels were significantly lower at day 7 in the Taurolidine group (p = 0.04). There were 2 recurrences in the placebo group at 2 years and 1 in the Taurolidine group. The median time to recurrence was 19 months in the Placebo group and 38 months in the Taurolidine group (p = 0.27). Surgical site infection was reduced in the Taurolidine treated group (p = 0.09). Conclusion Peri-operative use of Taurolidine significantly attenuated circulating IL-6 levels in the initial 7 day post-operative period in a safe manner. Future studies are required to establish the impact of IL-6 attenuation on survival outcomes in colon cancer. Trial registration The trial was registered with EudraCT (year = 2008, registration number = 005570–12) and ISRCTN (year = 2008, registration number = 77,829,558).
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Affiliation(s)
- H Paul Redmond
- Surguvant Research Centre, Cork University Hospital, Cork, Ireland
| | - Peter M Neary
- Surguvant Research Centre, Cork University Hospital, Cork, Ireland
| | - Marcel Jinih
- Surguvant Research Centre, Cork University Hospital, Cork, Ireland
| | - Emer O'Connell
- Surguvant Research Centre, Cork University Hospital, Cork, Ireland
| | - Niamh Foley
- Surguvant Research Centre, Cork University Hospital, Cork, Ireland
| | - Rolf W Pfirrmann
- Surguvant Research Centre, Cork University Hospital, Cork, Ireland
| | - Jiang H Wang
- Surguvant Research Centre, Cork University Hospital, Cork, Ireland
| | - D Peter O'Leary
- Surguvant Research Centre, Cork University Hospital, Cork, Ireland.
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Yang J, Fan Z, Yang J, Ding J, Yang C, Chen L. microRNA-22 attenuates myocardial ischemia-reperfusion injury via an anti-inflammatory mechanism in rats. Exp Ther Med 2016; 12:3249-3255. [PMID: 27882145 PMCID: PMC5103773 DOI: 10.3892/etm.2016.3777] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Accepted: 07/15/2016] [Indexed: 12/18/2022] Open
Abstract
Previous studies have reported that microRNA-22 (miR-22) may be implicated in ischemia-reperfusion (I/R)-induced myocardial injury. Our previously published data also demonstrated that miR-22 may protect against myocardial I/R injury via anti-apoptosis in rats by targeting cAMP response element-binding protein binding protein (CBP). However, the specific function of miR-22 in myocardial I/R injury is far from fully elucidated. The present study was designed to investigate another cardioprotective signaling mechanism of miR-22 in myocardial I/R injury. A total of 40 adult male Sprague-Dawley rats were randomly divided into four equal groups (n=10): Sham, myocardial I/R, myocardial I/R with adenovirus expressing scramble miRNA (Ad-Scramble) and myocardial I/R with adenovirus expressing miR-22 (Ad-miR-22) groups. Besides the Sham operation group, the remaining three groups were artificially afflicted with coronary occlusion for 30 min and subsequently reperfused for 4 h. A light microscope was used to observe structural changes in the myocardium; reverse transcription polymerase chain reaction was used to measure the miR-22 mRNA expression level; the myocardial infarct size was analyzed by the Evans Blue/triphenyltetrazolium chloride double-staining; and p38 mitogen-activated protein kinase (MAPK), CBP, c-Jun-activator protein (AP)-1 and phospho (p)-c-Jun-AP-1 expression protein levels were detected by a western blot. Furthermore, ELISA was used to measure the levels of TNF-α and IL-6 in the myocardium. The results demonstrated that adenovirus-mediated miR-22 overexpression markedly reduced p38 MAPK, CBP, c-Jun-AP-1, p-c-Jun-AP-1 expression levels concomitant with an improvement in myocardial injury, including smaller infarct size, reduced release of creatine kinase, lactate dehydrogenase and proinflammation mediators (tumor necrosis factor-α and interleukin-6). These findings suggest that miR-22 has a protective effect on myocardial I/R injury. This protection mechanism, at least in part, is due to its anti-inflammatory function via the suppression of the p38 MAPK/CBP/c-Jun-AP-1 signaling pathway.
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Affiliation(s)
- Jian Yang
- Department of Cardiology, Institute of Cardiovascular Diseases, The First College of Clinical Medical Sciences, China Three Gorges University, Yichang, Hubei 443000, P.R. China
| | - Zhixing Fan
- Department of Cardiology, Institute of Cardiovascular Diseases, The First College of Clinical Medical Sciences, China Three Gorges University, Yichang, Hubei 443000, P.R. China
| | - Jun Yang
- Department of Cardiology, Institute of Cardiovascular Diseases, The First College of Clinical Medical Sciences, China Three Gorges University, Yichang, Hubei 443000, P.R. China
| | - Jiawang Ding
- Department of Cardiology, Institute of Cardiovascular Diseases, The First College of Clinical Medical Sciences, China Three Gorges University, Yichang, Hubei 443000, P.R. China
| | - Chaojun Yang
- Department of Cardiology, Institute of Cardiovascular Diseases, The First College of Clinical Medical Sciences, China Three Gorges University, Yichang, Hubei 443000, P.R. China
| | - Lihua Chen
- Department of Optometry and Ophthalmology, Yichang Central People's Hospital, China Three Gorges University, Yichang, Hubei 443000, P.R. China
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Use of Taurine During Rehabilitation After Cardiac Surgery. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2015; 803:637-49. [DOI: 10.1007/978-3-319-15126-7_51] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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MÖHLER HANS, PFIRMAN ROLFW, FREI KARL. Redox-directed cancer therapeutics: Taurolidine and Piperlongumine as broadly effective antineoplastic agents (review). Int J Oncol 2014; 45:1329-36. [PMID: 25175943 PMCID: PMC4151817 DOI: 10.3892/ijo.2014.2566] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 07/02/2014] [Indexed: 12/16/2022] Open
Abstract
Targeting the oxygen stress response pathway is considered a promising strategy to exert antineoplastic activity in a broad spectrum of tumor types. Supporting this view, we summarize the mechanism of action of Taurolidine and Piperlongumine, two antineoplastic agents with strikingly broad tumor selectivity. Taurolidine enhances the oxidative stress (ROS) selectively in tumor cells. Its cytotoxicity for various tumor cells in vitro and in vivo, which includes tumor stem cells, is based on the induction of programmed cell death, largely via apoptosis but also necroptosis and autophagy. The redox-directed mechanism of action of Taurolidine is apparent from the finding that reducing agents e.g., N-acetylcysteine or glutathione impair its cytotoxicity, while its effectiveness is enhanced by agents which inhibit the cellular anti‑oxidant capacity. A similar redox-directed antineoplastic action is shown by Piperlongumine, a recently described experimental drug of plant origin. Taurolidine is particularly advantageous in surgical oncology as this taurine-derivative can be applied perioperatively or systemically with good tolerability as shown in initial clinical applications.
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Affiliation(s)
- HANS MÖHLER
- Institute of Pharmacology, University of Zurich and Department of Chemistry and Applied Biosciences, ETH Zurich, 8057 Zurich, Switzerland
| | - ROLF W. PFIRMAN
- Geistlich Pharma AG, 6110 Wolhusen, University Hospital Zurich, 8091 Zurich, Switzerland
| | - KARL FREI
- Department of Neurosurgery, University Hospital Zurich, 8091 Zurich, Switzerland
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Hall R. Identification of Inflammatory Mediators and Their Modulation by Strategies for the Management of the Systemic Inflammatory Response During Cardiac Surgery. J Cardiothorac Vasc Anesth 2013; 27:983-1033. [DOI: 10.1053/j.jvca.2012.09.013] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Indexed: 12/21/2022]
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Christophersen OA. Radiation protection following nuclear power accidents: a survey of putative mechanisms involved in the radioprotective actions of taurine during and after radiation exposure. MICROBIAL ECOLOGY IN HEALTH AND DISEASE 2012; 23:14787. [PMID: 23990836 PMCID: PMC3747764 DOI: 10.3402/mehd.v23i0.14787] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/18/2011] [Accepted: 11/18/2011] [Indexed: 12/28/2022]
Abstract
There are several animal experiments showing that high doses of ionizing radiation lead to strongly enhanced leakage of taurine from damaged cells into the extracellular fluid, followed by enhanced urinary excretion. This radiation-induced taurine depletion can itself have various harmful effects (as will also be the case when taurine depletion is due to other causes, such as alcohol abuse or cancer therapy with cytotoxic drugs), but taurine supplementation has been shown to have radioprotective effects apparently going beyond what might be expected just as a consequence of correcting the harmful consequences of taurine deficiency per se. The mechanisms accounting for the radioprotective effects of taurine are, however, very incompletely understood. In this article an attempt is made to survey various mechanisms that potentially might be involved as parts of the explanation for the overall beneficial effect of high levels of taurine that has been found in experiments with animals or isolated cells exposed to high doses of ionizing radiation. It is proposed that taurine may have radioprotective effects by a combination of several mechanisms: (1) during the exposure to ionizing radiation by functioning as an antioxidant, but perhaps more because it counteracts the prooxidant catalytic effect of iron rather than functioning as an important scavenger of harmful molecules itself, (2) after the ionizing radiation exposure by helping to reduce the intensity of the post-traumatic inflammatory response, and thus reducing the extent of tissue damage that develops because of severe inflammation rather than as a direct effect of the ionizing radiation per se, (3) by functioning as a growth factor helping to enhance the growth rate of leukocytes and leukocyte progenitor cells and perhaps also of other rapidly proliferating cell types, such as enterocyte progenitor cells, which may be important for immunological recovery and perhaps also for rapid repair of various damaged tissues, especially in the intestines, and (4) by functioning as an antifibrogenic agent. A detailed discussion is given of possible mechanisms involved both in the antioxidant effects of taurine, in its anti-inflammatory effects and in its role as a growth factor for leukocytes and nerve cells, which might be closely related to its role as an osmolyte important for cellular volume regulation because of the close connection between cell volume regulation and the regulation of protein synthesis as well as cellular protein degradation. While taurine supplementation alone would be expected to exert a therapeutic effect far better than negligible in patients that have been exposed to high doses of ionizing radiation, it may on theoretical grounds be expected that much better results may be obtained by using taurine as part of a multifactorial treatment strategy, where it may interact synergistically with several other nutrients, hormones or other drugs for optimizing antioxidant protection and minimizing harmful posttraumatic inflammatory reactions, while using other nutrients to optimize DNA and tissue repair processes, and using a combination of good diet, immunostimulatory hormones and perhaps other nontoxic immunostimulants (such as beta-glucans) for optimizing the recovery of antiviral and antibacterial immune functions. Similar multifactorial treatment strategies may presumably be helpful in several other disease situations (including severe infectious diseases and severe asthma) as well as for treatment of acute intoxications or acute injuries (both mechanical ones and severe burns) where severely enhanced oxidative and/or nitrative stress and/or too much secretion of vasodilatory neuropeptides from C-fibres are important parts of the pathogenetic mechanisms that may lead to the death of the patient. Some case histories (with discussion of some of those mechanisms that may have been responsible for the observed therapeutic outcome) are given for illustration of the likely validity of these concepts and their relevance both for treatment of severe infections and non-infectious inflammatory diseases such as asthma and rheumatoid arthritis.
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Akdemir O, Hede Y, Zhang F, Lineaweaver WC, Arslan Z, Songur E. Effects of taurine on reperfusion injury. J Plast Reconstr Aesthet Surg 2011; 64:921-928. [PMID: 21256822 DOI: 10.1016/j.bjps.2010.12.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2010] [Revised: 10/09/2010] [Accepted: 12/07/2010] [Indexed: 11/19/2022]
Abstract
Taurine is an organic acid, which has a very important function in the human body. Recently, the antioxidant property of taurine has been much emphasised. In this study, the gracilis muscle flap model was used to investigate the effect of taurine in ischaemia/reperfusion injury in rats. Totally 32 Sprague-Dawley rats were divided into two groups: control group (n = 16) and the treatment group with taurine (n = 16). After elevation of the gracilis muscle flap, 4 h of ischaemia was performed in both groups. Thirty min before the reperfusion, taurine (200 mg kg(-1)) was injected intravenously. After 24 h of reperfusion, the amount of malondialdehyde (MDA), tissue water content and flap viability were evaluated. After 72 h of reperfusion, histological findings were evaluated. Amount of MDA and tissue water content were significantly lower (p < 0.005), and the flap viability was significantly higher (p < 0.005) in the treatment group 24 h after reperfusion. On comparing the outcomes of histological analysis between control and treatment groups, the amounts of collagen, fibroblast and angiogenesis in treatment group were significantly higher than those in the control group. However, the amount of polymorphonuclear leucocyte and tissue necrosis in the treatment group were significantly lower than in the control group. Our results showed that taurine played an important role in the process of ischaemia/reperfusion injury and presented certain protective effects with the improvement in flap survival after ischaemia/reperfusion injury.
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Affiliation(s)
- Ovunc Akdemir
- Department of Plastic Surgery, University of Mississippi Medical Center, Jackson, MS 39216, USA
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