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Wang J, Sun Y, Liu J, Yang B, Wang T, Zhang Z, Jiang X, Guo Y, Zhang Y. Roles of long non‑coding RNA in osteoarthritis (Review). Int J Mol Med 2021; 48:133. [PMID: 34013375 PMCID: PMC8148092 DOI: 10.3892/ijmm.2021.4966] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 05/05/2021] [Indexed: 02/01/2023] Open
Abstract
Osteoarthritis (OA) is a chronic bone and joint disease characterized by articular cartilage degeneration and joint inflammation and is the most common form of arthritis. The clinical manifestations of OA are chronic pain and joint activity disorder, which severely affect the patient quality of life. Long non-coding RNA (lncRNA) is a class of RNA molecules >200 nucleotides long that are expressed in animals, plants, yeast, prokaryotes and viruses. lncRNA molecules lack an open reading frame and are not translated into protein. The present review collated the results of recent studies on the role of lncRNA in the pathogenesis of OA to provide information for the prevention, diagnosis and treatment of OA.
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Affiliation(s)
- Jicheng Wang
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Yanshan Sun
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Jianyong Liu
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Bo Yang
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Tengyun Wang
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Zhen Zhang
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Xin Jiang
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Yongzhi Guo
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Yangyang Zhang
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
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Intestinal ischemic reperfusion injury: Recommended rats model and comprehensive review for protective strategies. Biomed Pharmacother 2021; 138:111482. [PMID: 33740527 DOI: 10.1016/j.biopha.2021.111482] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 03/01/2021] [Accepted: 03/06/2021] [Indexed: 12/17/2022] Open
Abstract
Intestinal ischemic reperfusion injury (IIRI) is a life-threatening condition with high morbidity and mortality in the clinic. IIRI was induced by intestinal ischemic diseases such as, small bowel transplantation, aortic aneurysm surgery, and strangulated hernias. Although related mechanisms have not been fully elucidated, during the last decade, researches have demonstrated that many factors are crucial in the pathological process, including oxidative stress (OS), epithelial barrier function disorder, and so on. Rats model, as the most applied animal IIRI model, provides specific targets for researches and therapeutic strategies. Moreover, various treatment strategies such as, anti-oxidative stress, anti-apoptosis, and anti-inflammation, have shown promising effects in alleviating IIRI. However, current researches cannot solve the clinical problems of IIRI, and specific treatment strategies are still needed to be exploited. This review focuses on a recommended experimental IIRI rat model and understanding of the involved mechanisms such as, OS, gut bacteria translocation, apoptosis, and necroptosis, aim at providing novel ideas for therapeutic strategies of IIRI.
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Kotfis K, Lechowicz K, Drożdżal S, Niedźwiedzka-Rystwej P, Wojdacz TK, Grywalska E, Biernawska J, Wiśniewska M, Parczewski M. COVID-19-The Potential Beneficial Therapeutic Effects of Spironolactone during SARS-CoV-2 Infection. Pharmaceuticals (Basel) 2021; 14:ph14010071. [PMID: 33477294 PMCID: PMC7830835 DOI: 10.3390/ph14010071] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/13/2021] [Accepted: 01/14/2021] [Indexed: 02/07/2023] Open
Abstract
In March 2020, coronavirus disease 2019 (COVID-19) caused by SARS-CoV-2 was declared a global pandemic by the World Health Organization (WHO). The clinical course of the disease is unpredictable but may lead to severe acute respiratory infection (SARI) and pneumonia leading to acute respiratory distress syndrome (ARDS). It has been shown that pulmonary fibrosis may be one of the major long-term complications of COVID-19. In animal models, the use of spironolactone was proven to be an important drug in the prevention of pulmonary fibrosis. Through its dual action as a mineralocorticoid receptor (MR) antagonist and an androgenic inhibitor, spironolactone can provide significant benefits concerning COVID-19 infection. The primary effect of spironolactone in reducing pulmonary edema may also be beneficial in COVID-19 ARDS. Spironolactone is a well-known, widely used and safe anti-hypertensive and antiandrogenic medication. It has potassium-sparing diuretic action by antagonizing mineralocorticoid receptors (MRs). Spironolactone and potassium canrenoate, exerting combined pleiotropic action, may provide a therapeutic benefit to patients with COVID-19 pneumonia through antiandrogen, MR blocking, antifibrotic and anti-hyperinflammatory action. It has been proposed that spironolactone may prevent acute lung injury in COVID-19 infection due to its pleiotropic effects with favorable renin–angiotensin–aldosterone system (RAAS) and ACE2 expression, reduction in transmembrane serine protease 2 (TMPRSS2) activity and antiandrogenic action, and therefore it may prove to act as additional protection for patients at highest risk of severe pneumonia. Future prospective clinical trials are warranted to evaluate its therapeutic potential.
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Affiliation(s)
- Katarzyna Kotfis
- Department of Anesthesiology, Intensive Therapy and Acute Intoxications, Pomeranian Medical University in Szczecin, 70-111 Szczecin, Poland;
- Correspondence: ; Tel.: +48-91-466-11-44
| | - Kacper Lechowicz
- Department of Anesthesiology, Intensive Therapy and Acute Intoxications, Pomeranian Medical University in Szczecin, 70-111 Szczecin, Poland;
| | - Sylwester Drożdżal
- Department of Pharmacokinetics and Monitored Therapy, Pomeranian Medical University, 70-111 Szczecin, Poland;
| | | | - Tomasz K. Wojdacz
- Independent Clinical Epigenetics Laboratory, Pomeranian Medical University, 71-252 Szczecin, Poland;
| | - Ewelina Grywalska
- Department of Clinical Immunology and Immunotherapy, Medical University of Lublin, 20-093 Lublin, Poland;
| | - Jowita Biernawska
- Department of Anesthesiology and Intensive Therapy, Pomeranian Medical University in Szczecin, 71-252 Szczecin, Poland;
| | - Magda Wiśniewska
- Clinical Department of Nephrology, Transplantology and Internal Medicine, Pomeranian Medical University, 70-111 Szczecin, Poland;
| | - Miłosz Parczewski
- Department of Infectious, Tropical Diseases and Immune Deficiency, Pomeranian Medical University in Szczecin, 71-455 Szczecin, Poland;
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Assessment of effects of methylene blue on intestinal ischemia and reperfusion in a rabbit model: hemodynamic, histological and immunohistochemical study. BMC Vet Res 2020; 16:54. [PMID: 32050965 PMCID: PMC7014715 DOI: 10.1186/s12917-020-02279-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Accepted: 02/07/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Intestinal ischemia-reperfusion (IR) is an important clinical occurrence seen in common diseases, such as gastric dilatation-volvulus in dogs or colic in horses. Limited data is available on the use of methylene blue in veterinary medicine for intestinal ischemia-reperfusion. The present study aimed to compare the hemodynamic, histopathological, and immunohistochemical effects of two doses of methylene blue in two rabbit model groups In one group, 5 mg/kg IV was administered, and in another, 20 mg/kg IV was administered following a constant rate infusion (CRI) of 2 mg/kg/h that lasted 6 h. All the groups, including a control group had intestinal ischemia-reperfusion. Immunohistochemical analysis was performed using caspase-3. RESULTS During ischemia, hemodynamic depression with reduced perfusion and elevated lactate were observed. During reperfusion, methylene blue (MB) infusion generated an increase in cardiac output due to a positive chronotropic effect, an elevation of preload, and an intense positive inotropic effect. The changes in heart rate and blood pressure were significantly greater in the group in which methylene blue 5 mg/kg IV was administered (MB5) than in the group in which methylene blue 20 mg/kg IV dose was administered (MB20). In addition, lactate and stroke volume variations were significantly reduced, and vascular resistance was significantly elevated in the MB5 group compared with the control group and MB20 group. The MB5 group showed a significant decrease in the intensity of histopathological lesion scores in the intestines and a decrease in caspase-3 areas, in comparison with other groups. CONCLUSIONS MB infusion produced improvements in hemodynamic parameters in rabbits subjected to intestinal IR, with increased cardiac output and blood pressure. An MB dosage of 5 mg/kg IV administered at a CRI of 2 mg/kg/h exhibited the most protective effect against histopathological damage caused by intestinal ischemia-reperfusion. Further studies with MB in clinical veterinary pathologies are recommended to fully evaluate these findings.
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Albuquerque FP, Laureano E, Jordani-Gomes MC, Fina CF, Vanni C, Mente ED, Vollet Filho JD, Bagnato VS, Dálbuquerque LAC, Évora PRB, Castro E Silva O. Prophylactic Use of Laser Light and Methylene Blue on Ischemia and Liver Reperfusion Injury. Transplant Proc 2019; 51:1549-1554. [PMID: 31155190 DOI: 10.1016/j.transproceed.2019.02.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
OBJECTIVE This study aimed to evaluate the effect of hepatic preconditioning with laser light in the presence of methylene blue (MB) in the liver ischemia-reperfusion injury process. METHOD Forty male Wistar rats were divided into 8 experimental groups (n = 5). Saline (.5 mL) or MB (15 mg/kg) was injected intravenously (inferior vena cava). After 2 minutes, 660 nm laser light was applied at a dose of 112.5 DE. Fifteen minutes after the application of saline or MB, 1 hour partial ischemia followed by 15 minutes of reperfusion was applied when the rats were sacrificed. The mitochondrial function parameters (O2 consumption rates in states 3 and 4 and the respiratory control ratio), osmotic swelling, and determination of malondialdehyde were evaluated. Hepatic function was studied using the serum determination of the alanine aminotransferase and aspartate aminotransferase enzymes. RESULTS AND CONCLUSIONS MB therapy alone showed the capacity of preserving the rate of oxygen consumption in the mitochondrial respiratory state of the group submitted to ischemia compared to the sham group. However, when combined with low-intensity laser therapy, it failed to replicate the relevant protective effects in relation to oxidative phosphorylation or the mitochondrial membrane ischemia/reperfusion injury. Whether or not MB was combined with laser treatment, it was shown to be efficient in reducing oxidative stress. In relation to alanine aminotransferase enzymes, whether or not laser treatment was combined with MB had a protective effect on the hepatic lesion, whereas in relation to aspartate aminotransferase enzymes only laser treatment was able to provide this protection.
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Affiliation(s)
- F P Albuquerque
- Surgery and Anatomy Department, University of São Paulo Ribeirão Preto Medical School, Ribeirão Preto, São Paulo, Brazil
| | - E Laureano
- Surgery and Anatomy Department, University of São Paulo Ribeirão Preto Medical School, Ribeirão Preto, São Paulo, Brazil
| | - M C Jordani-Gomes
- Surgery and Anatomy Department, University of São Paulo Ribeirão Preto Medical School, Ribeirão Preto, São Paulo, Brazil
| | - C F Fina
- Surgery and Anatomy Department, University of São Paulo Ribeirão Preto Medical School, Ribeirão Preto, São Paulo, Brazil
| | - C Vanni
- Surgery and Anatomy Department, University of São Paulo Ribeirão Preto Medical School, Ribeirão Preto, São Paulo, Brazil
| | - E D Mente
- Surgery and Anatomy Department, University of São Paulo Ribeirão Preto Medical School, Ribeirão Preto, São Paulo, Brazil
| | - J D Vollet Filho
- São Carlos Institute of Physics, University of São Paulo, São Paulo, Brazil
| | - V S Bagnato
- São Carlos Institute of Physics, University of São Paulo, São Paulo, Brazil
| | - L A C Dálbuquerque
- Department of Gastroenterology, University of São Paulo Medical School, São Paulo, Brazil
| | - P R B Évora
- Surgery and Anatomy Department, University of São Paulo Ribeirão Preto Medical School, Ribeirão Preto, São Paulo, Brazil
| | - O Castro E Silva
- Surgery and Anatomy Department, University of São Paulo Ribeirão Preto Medical School, Ribeirão Preto, São Paulo, Brazil; Department of Gastroenterology, University of São Paulo Medical School, São Paulo, Brazil.
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Castro-E-Silva O, D'Albuquerque LAC, Silveira MRG, Zorzi P, Liu JB, Campos DTQ, Victorino JP, Jordani MC, Mendes KDS, Évora PRB. Evaluation of the therapeutic effect of methylene blue on the liver of rats submitted to ischemia and reperfusion. Acta Cir Bras 2019; 33:1043-1051. [PMID: 30624509 DOI: 10.1590/s0102-865020180120000001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 11/09/2018] [Indexed: 01/15/2023] Open
Abstract
PURPOSE To analyze the effect of methylene blue (MB) therapy during the liver ischemia-reperfusion injury (I/R) process. METHODS Thirty-five male Wistar rats were used, (70%) submitted to partial ischemia (IR) or not (NIR) (30%) were obtained from the same animal. These animals were divided into six groups: 1) Sham (SH), 2) Sham with MB (SH-MB); 3) I/R, submitted to 60 minutes of partial ischemia and 15 minutes of reperfusion; 4) NI/R, without I/R obtained from the same animal of group I/R; 5) I/R-MB submitted to I/R and MB and 6) NI/R-MB, without I/R. Mitochondrial function was evaluated. Osmotic swelling of mitochondria as well as the determination of malondialdehyde (MDA) was evaluated. Serum (ALT/AST) dosages were also performed. MB was used at the concentration of 15mg/kg, 15 minutes before hepatic reperfusion. Statistical analysis was done by the Mann Whitney test at 5%. RESULTS State 3 shows inhibition in all ischemic groups. State 4 was increased in all groups, except the I/R-MB and NI/R-MB groups. RCR showed a decrease in all I/R and NI/R groups. Mitochondrial osmotic swelling showed an increase in all I/R NI/R groups in the presence or absence of MB. About MDA, there was a decrease in SH values in the presence of MB and this decrease was maintained in the I/R group. AST levels were increased in all ischemic with or without MB. CONCLUSIONS The methylene blue was not able to restore the mitochondrial parameters studied. Also, it was able to decrease lipid peroxidation, preventing the formation of reactive oxygen species.
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Affiliation(s)
- Orlando Castro-E-Silva
- PhD, Full Professor, Surgery and Anatomy Department, Faculdade de Medicina de Ribeirão Preto - Universidade de São Paulo (FMRP-USP), Ribeirao Preto-SP, Brazil. Conception and design of the study, analysis and interpretation of data, manuscript writing, critical revision
| | | | - Marina Rodrigues Garcia Silveira
- Graduate student, Ribeirao Preto Medical School, and Special Fellow PhD degree, Postgraduate Program in Public Health, Department of Preventive Medicine, Sao Paulo Medical School, USP, Sao Paulo-SP, Brazil. Technical procedures, acquisition of data
| | - Patricia Zorzi
- Graduate student, FMRP-USP, Ribeirao Preto-SP. Technical procedures, acquisition of data
| | - Jordan Bistafa Liu
- Graduate student, Faculdade de Medicina de Marília (FAMEMA), Marilia-SP, Brazil. Technical procedures; acquisition, analysis and interpretation of data
| | - Daniel Tófoli Queiroz Campos
- Graduate student, Faculdade de Medicina de Marília (FAMEMA), Marilia-SP, Brazil. Technical procedures; acquisition, analysis and interpretation of data
| | - João Paulo Victorino
- BScN, USP, Ribeirão Preto College of Nursing, PAHO/WHO Collaborating Centre for Nursing Research Development, Ribeirao Preto-SP, Brazil. Interpretation of data
| | - Maria Cecília Jordani
- Master, Biochemistry, Division of Digestive Surgery, Department of Surgery and Anatomy, FMRP-USP, Ribeirao Preto-SP, Brazil. Acquisition and interpretation of data
| | - Karina Dal Sasso Mendes
- RN, PhD, General and Specialized Nursing Department, USP, Ribeirao Preto College of Nursing, PAHO/WHO Collaborating Centre for Nursing Research Development, Ribeirao Preto-SP, Brazil. Interpretation of data
| | - Paulo Roberto Barbosa Évora
- PhD, Full Professor, Division of Thoracic and Cardiovascular Surgery, Department of Surgery and Anatomy, FMRP-USP, Ribeirao Preto-SP, Brazil. Conception and design of the study, manuscript writing, critical revision
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Zheng J, Li Q. Methylene blue regulates inflammatory response in osteoarthritis by noncoding long chain RNA CILinc02. J Cell Biochem 2018; 120:3331-3338. [PMID: 30548658 DOI: 10.1002/jcb.27602] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 08/07/2018] [Indexed: 01/12/2023]
Abstract
Long noncoding RNAs serve as novel regulatory molecules involved in various biological processes, but their role in osteoarthritis (OA) remains unknown. Therefore, we aimed to reveal the inflammatory mechanisms regulated by CILinc02 and methylene blue in human osteoarthritic cartilage and to explore the potential functions of CILinc02 and methylene blue in OA. The expression level of CILinc02 in OA cartilage tissues and primary cells was obtained using quantitative reverse transcriptase polymerase chain reaction (qRT-PCR). The cytokines, such as interleukin 1 (IL-1), IL-6, IL-17, tissue inhibitor of metalloproteinase-1 (TIMP-1) and matrix metalloproteinase (MMPs), involved in the degradation of chondrocyte in CILinc02 knockdown OA primary cells, which were treated with methylene blue that were determined by enzyme-linked immunosorbent assay, qRT-PCR and Western blot analysis. The results showed that CILinc02 was overexpressed in osteoarthritic cartilage tissues and in OA primary cells, but methylene blue can inhibit the expression of CILinc02. In addition, overexpression of CILinc02 induced the inflammation and apoptosis in primary OA cells, however, the effect of methylene blue was reversed compared to CILinc02. Meanwhile, methylene blue can regulate the expression of TIMP-1, MMP-1, and MMP-13 proteins, thereby suppressing the degradation of chondrocyte in OA. This evidence indicates that methylene blue can act as an inflammatory inhibitor by targeting CILinc02 to regulate the inflammatory response.
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Affiliation(s)
- Jiapeng Zheng
- Department of Orthopedic, Southeast Hospital Affiliated to Xiamen University, ZhangZhou, China
| | - Qiang Li
- The Second Department of Orthopedics, Zhang Zhou Zhengxing Hospital, Zhangzhou, China
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Effect of Hepatic Preconditioning with the Use of Methylene Blue on the Liver of Wistar Rats Submitted to Ischemia and Reperfusion. Transplant Proc 2018; 50:841-847. [PMID: 29661450 DOI: 10.1016/j.transproceed.2018.02.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
BACKGROUND The liver may be injured in situations where it is submitted to ischemia, such as partial hepatectomy and liver transplantation. In all cases, ischemia is followed by reperfusion and, although it is essential for the reestablishment of tissue function, reperfusion may cause greater damage than ischemia, an injury characterized as ischemia-reperfusion (I/R) damage. The aim of this work was to analyze the effect of ischemic preconditioning with the use of methylene blue (MB; 15 mg/kg) 5 or 15 minutes before I/R (IRMB5' and IRMB15', respectively) on the hepatic injury occurring after I/R. METHODS Twenty-eight male Wistar rats were used, and liver samples submitted to partial ischemia (IR) or not (NI) were obtained from the same animal. The samples were divided into 7 groups. Data were analyzed statistically by means of the nonparametric Mann-Whitney test and Wilcoxon Matched test, with the level of significance set at 5% (P < .05). RESULTS The rate of oxygen consumption by state 3 mitochondria was inhibited in all ischemic groups compared with the sham group (SH vs IR: P = .0052; SH vs IRMB5': P = .0006; SH vs IRMB15': P = .0048), which did not occur in the nonischemic contralateral portion of the same liver (SH vs NI: P = .7652; SH vs NIMB5': P = .059; SH vs NIMB15': P = .3153). The inhibition of the rate of oxygen consumption by state 3 mitochondria was maintained in the presence of MB (IR vs IRMB5': P = .4563; IR vs IRMB15': P = .9021). The respiratory control ratio was reduced in all ischemic groups compared with the sham group, owing to the inhibition of oxygen consumption in state 3 (SH vs IR: P = .0151; SH vs IRMB5': P = .005; SH vs IRMB15': P = .0007). CONCLUSIONS Methylene blue had no effect on the mitochondrial respiratory parameters studied, but was able to reduce lipid peroxidation, preventing the production of reactive oxygen species (SH vs IRMB15': P = .0210).
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Santos CHMD, Dourado DM, Silva BAKD, Pontes HBD, Azevedo-Neto ED, Vendas GSDC, Chaves IDO, Miranda JVC. ATORVASTATIN CAN PREVENT HEPATIC REMOTE REPERFUSION INJURY. ABCD-ARQUIVOS BRASILEIROS DE CIRURGIA DIGESTIVA 2018; 30:197-200. [PMID: 29019561 PMCID: PMC5630213 DOI: 10.1590/0102-6720201700030008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 07/25/2017] [Indexed: 12/18/2022]
Abstract
Background: Some studies have shown that statins have a promising effect on protection against reperfusion injury. Aim: To evaluate the ability of ischemic postconditioning, statins and both associated to prevent or minimize reperfusion injury in the liver of rats subjected to ischemia and reperfusion by abdominal aorta clamping. Method: Were used 41 Wistar rats, which were distributed into five groups: ischemia and reperfusion (I/R), ischemic postcondictioning (IPC), postconditioning + statin (IPC+S), statin (S) and Sham. It was performed a medium laparotomy, dissection and isolation of the infra-renal abdominal aorta; excepting Sham group, all the others were submitted to the aorta clamping for 70 min (ischemia) and posterior clamping removing (reperfusion, 70 min). In the IPC and IPC+S groups, postconditioning was performed between the ischemia and reperfusion phases by four cycles of reperfusion and ischemia lasting 30 s each. In IPC+S and S groups, preceding the surgical procedure, administration of 3.4 mg/day of atorvastatin was performed for seven days by gavage. The left hepatic lobe was removed for histological study and euthanasia was performed. Results: The mean hepatic injury was 3 in the I/R group, 1.5 in the IPC group, 1.2 in the IPC+S group, 1.2 in the S group, and 0 in the SHAM group. The I/R group had a higher degree of tissue injury compared to the others in the statistical analysis and there was no difference between the others (p<0.01). Conclusion: Ischemic postconditioning and atorvastatin were able to minimize hepatic reperfusion injury, either alone or in combination.
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Methylene Blue Attenuates Lung Injury Induced by Hindlimb Ischemia Reperfusion in Rats. Mediators Inflamm 2018; 2018:2508620. [PMID: 29713238 PMCID: PMC5866857 DOI: 10.1155/2018/2508620] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 01/13/2018] [Accepted: 01/28/2018] [Indexed: 12/13/2022] Open
Abstract
Objective This study was aimed to investigate the protective effect of methylene blue against lung injury induced by reperfusion of ischemic hindlimb in a rat model. Methods Twenty-four healthy adult male Sprague-Dawley rats were equally randomized into three groups: sham (SM) group, ischemia reperfusion (IR) group, and methylene blue (MB) group. Rats in both IR and MB groups were subjected to 4 h of ischemia by clamping the left femoral artery and then followed by 4 h of reperfusion. Treatment with 1% methylene blue (50 mg/kg) was administrated intraperitoneally at 10 min prior to reperfusion in the MB group. After 4 h of reperfusion, malondialdehyde (MDA) level, myeloperoxidase (MPO), and superoxide dismutase (SOD) activities in lung tissue were detected; inflammatory cytokines, including IL-1β and IL-6, were measured in bronchoalveolar lavage fluid (BALF); correspondingly, the morphological changes and water content in both gastrocnemius muscle and lung samples were evaluated. Results Hindlimb IR caused remarkable morphological abnormalities and edema in both muscle and lung tissues. SOD activity was decreased, both the MPO activity and MDA level in lung tissue, as well as IL-1β and IL-6 levels in BALF, were increased in the IR group (p < 0.05). Compared with the IR group, SOD activity was increased, whereas MPO activity and MDA level in lung tissue and IL-1β and IL-6 levels in BALF were decreased in the MB group (p < 0.05). Also, the histological damage and edema in both lung and muscle tissues were significantly attenuated by the treatment of methylene blue. Conclusion Methylene blue attenuates lung injury induced by hindlimb IR in rats, at least in part, by inhibiting oxidative stress.
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dos Santos CHM, Aydos RD, Nogueira E, Miiji LNO, Cassino PC, Alves II, Calheiros NM, Garcia M. Ischemic Postconditioning Assessment in the Liver of Rats Undergoing Mesenteric Ischemia and Reperfusion. Braz J Cardiovasc Surg 2017; 31:287-290. [PMID: 27849300 PMCID: PMC5094425 DOI: 10.5935/1678-9741.20160068] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 07/04/2016] [Indexed: 12/17/2022] Open
Abstract
Introduction Ischemic postconditioning is a method that shows evidence of efficacy in
minimizing reperfusion injury; however, its effectiveness in preventing
injuries in distant organs is still unknown, especially in those who have
undergone mesenteric ischemia and reperfusion. Objective To evaluate the effect of ischemic postconditioning in preventing reperfusion
injury in the liver of rats submitted to mesenteric ischemia and
reperfusion, comparing two different methods of ischemic
postconditioning. Methods 30 Wistar male rats were used, distributed into three groups: Group A: Ten
rats submitted to intestinal ischemia for 30 minutes followed by reperfusion
for 60 minutes; Group B: Ten rats subjected to ischemia and reperfusion;
after ischemia, two cycles of reperfusion (two minutes each) interleaved
with two cycles of ischemia (two minutes each); and Group C: Ten rats
subjected to ischemia and reperfusion; after ischemia, four cycles of
reperfusion (30 seconds each) interspersed with four cycles of ischemia (30
seconds each). After the experiment, the left lobe of the liver was resected
for subsequent histological analysis, using the following classification:
grade 1 - centrilobular congestion; grade 2 - centrilobular congestion with
some degeneration of hepatocytes in one or two central veins; and grade 3 -
multifocal centrilobular congestion and degeneration of portal
hepatocytes. Results The mean degree of liver damage found was 1.8 in group A, 1.7 in group B and
1.3 in group C. There was no statistically significant difference between
the groups. Conclusion Ischemic postconditioning was unable to minimize reperfusion injury in rats
undergoing mesenteric ischemia and reperfusion.
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Affiliation(s)
| | - Ricardo Dutra Aydos
- Faculdade de Medicina da Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Ed Nogueira
- Faculdade de Medicina da Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
| | | | - Pedro Carvalho Cassino
- Faculdade de Medicina da Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Isadora Ishaq Alves
- Faculdade de Medicina da Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
| | | | - Milena Garcia
- Faculdade de Medicina da Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
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Tian WF, Zeng S, Sheng Q, Chen JL, Weng P, Zhang XT, Yuan JJ, Pang QF, Wang ZQ. Methylene Blue Protects the Isolated Rat Lungs from Ischemia-Reperfusion Injury by Attenuating Mitochondrial Oxidative Damage. Lung 2017; 196:73-82. [PMID: 29204685 DOI: 10.1007/s00408-017-0072-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 11/10/2017] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Impaired mitochondrial function is a key factor attributing to the lung ischemia reperfusion injury (LIRI). Methylene blue (MB) has been reported to attenuate brain and renal ischemia-reperfusion injury. We hypothesized that MB also could have a protective effect against LIRI by preventing mitochondrial oxidative damage. METHODS Isolated rat lungs were assigned to the following four groups (n = 6): a sham group: perfusion for 105 min without ischemia; I/R group: shutoff of perfusion and ventilation for 45 min followed by reperfusion for 60 min; and I/R + MB group and I/R + glutathione (GSH) group: 2 mg/kg MB or 4 μM glutathione were intraperitoneally administered for 2 h, and followed by 45 min of ischemia and 60 min of reperfusion. RESULTS MB lessened pulmonary dysfunction and severe histological injury induced by ischemia-reperfusion injury. MB reduced the production of reactive oxygen species and malondialdehyde and enhanced the activity of superoxide dismutase. MB also suppressed the opening of the mitochondrial permeability transition pore and partly preserved mitochondrial membrane potential. Moreover, MB inhibited the release of cytochrome c from the mitochondria into the cytosol and decreased apoptosis. Additionally, MB downregulated the mRNA expression levels of pro-inflammatory cytokines (TNF-α, IL-1β, IL-6, and IL-18). CONCLUSION MB protects the isolated rat lungs against ischemia-reperfusion injury by attenuating mitochondrial damage.
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Affiliation(s)
- Wen-Fang Tian
- Wuxi School of Medicine, Jiangnan University, No.1800 Lihu Road, 214122, Wuxi, China
| | - Si Zeng
- Department of Anesthesiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, China
| | - Qiong Sheng
- Wuxi School of Medicine, Jiangnan University, No.1800 Lihu Road, 214122, Wuxi, China
| | - Jun-Liang Chen
- Wuxi School of Medicine, Jiangnan University, No.1800 Lihu Road, 214122, Wuxi, China
| | - Ping Weng
- Wuxi School of Medicine, Jiangnan University, No.1800 Lihu Road, 214122, Wuxi, China
| | - Xiao-Tong Zhang
- Wuxi School of Medicine, Jiangnan University, No.1800 Lihu Road, 214122, Wuxi, China
| | - Jia-Jia Yuan
- Wuxi School of Medicine, Jiangnan University, No.1800 Lihu Road, 214122, Wuxi, China
| | - Qing-Feng Pang
- Wuxi School of Medicine, Jiangnan University, No.1800 Lihu Road, 214122, Wuxi, China.
| | - Zhi-Qiang Wang
- Department of Thoracic and Cardiovascular Surgery, Affiliated Hospital of Jiangnan University, No. 200, Huihe Road, 214062, Wuxi, China.
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Vekaria HJ, Talley Watts L, Lin AL, Sullivan PG. Targeting mitochondrial dysfunction in CNS injury using Methylene Blue; still a magic bullet? Neurochem Int 2017; 109:117-125. [PMID: 28396091 PMCID: PMC5632129 DOI: 10.1016/j.neuint.2017.04.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 03/31/2017] [Accepted: 04/05/2017] [Indexed: 12/17/2022]
Abstract
Complex, multi-factorial secondary injury cascades are initiated following traumatic brain injury, which makes this a difficult disease to treat. The secondary injury cascades following the primary mechanical tissue damage, are likely where effective therapeutic interventions may be targeted. One promising therapeutic target following brain injury are mitochondria. Mitochondria are complex organelles found within the cell, which act as powerhouses within all cells by supplying ATP. These organelles are also necessary for calcium cycling, redox signaling and play a major role in the initiation of cell death pathways. When mitochondria become dysfunctional, there is a tendency for the cell to loose cellular homeostasis and can lead to eventual cell death. Targeting of mitochondrial dysfunction in various diseases has proven a successful approach, lending support to mitochondria as a pivotal player in TBI cell death and loss of behavioral function. Within this mixed mini review/research article there will be a general discussion of mitochondrial bioenergetics, followed by a brief discussion of traumatic brain injury and how mitochondria play an integral role in the neuropathological sequelae following an injury. We will also give an overview of one relatively new TBI therapeutic approach, Methylene Blue, currently being studied to ameliorate mitochondrial dysfunction following brain injury. We will also present novel experimental findings, that for the first time, characterize the ex vivo effect of Methylene Blue on mitochondrial function in synaptic and non-synaptic populations of mitochondria.
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Affiliation(s)
- Hemendra J Vekaria
- Spinal Cord and Brain Injury Research Center, University of Kentucky, Lexington, KY, USA; Department of Neuroscience, University of Kentucky, Lexington, KY, USA
| | - Lora Talley Watts
- Department of Cell Systems and Anatomy, Neurology and Research Imaging Institute, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Ai-Ling Lin
- Sanders-Brown Center on Aging, Department of Pharmacology and Nutritional Sciences, Department of Biomedical Engineering, University of Kentucky, Lexington, KY, USA
| | - Patrick G Sullivan
- Spinal Cord and Brain Injury Research Center, University of Kentucky, Lexington, KY, USA; Department of Neuroscience, University of Kentucky, Lexington, KY, USA; Research Physiologist, Lexington VAMC, Lexington, KY, USA.
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Gandini M, Cerri S, Pregel P, Giusto G, Vercelli C, Iussich S, Tursi M, Farca AM. Direct intraperitoneal resuscitation with lidocaine, methylene blue and pentoxiphylline combination does not decreases inflammation after intestinal ischemia-reperfusion injury in rats. Acta Cir Bras 2016; 31:333-7. [DOI: 10.1590/s0102-865020160050000007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 04/18/2016] [Indexed: 02/08/2023] Open
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Kuliaviene I, Baniene R, Virketyte S, Kincius M, Jansen E, Gulbinas A, Kupcinskas L, Trumbeckaite S, Borutaite V. Methylene blue attenuates mitochondrial dysfunction of rat kidney during experimental acute pancreatitis. J Dig Dis 2016; 17:186-92. [PMID: 26861116 DOI: 10.1111/1751-2980.12328] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Revised: 01/22/2016] [Accepted: 02/05/2016] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The disturbance of mitochondrial functions has been considered as one of the mechanisms of pathogenesis of acute pancreatitis (AP) followed by kidney failure. This study was aimed to investigate the effects of methylene blue (MB) on pancreas and kidney mitochondrial respiratory functions during experimental acute pancreatitis in rats. METHODS AP was induced by administrating sodium taurocholate into the pancreatic duct of male Wistar rats. The rats were divided into three groups: the MB group, MB (5 mg/kg) was injected intravenously 10 min prior to AP induction; the AP group, saline solution was injected intravenously 10 min prior to AP induction; and the sham operation group, isotonic sodium chlorine was used instead of sodium taurocholate. The animals were sacrificed after 24 h. The pancreas and kidney were removed for mitochondrial assay by oxygraphic and spectrophotometric methods. RESULTS Intravenous injection of MB did not prevent AP-induced inhibition of pancreatic mitochondrial respiration; however, MB significantly improved kidney mitochondrial respiratory functions with complex I-dependent substrates glutamate and malate. The activity of complex I of mitochondria isolated from AP-damaged kidney was increased after pretreatment with MB. However, MB did not affect AP-inhibited kidney mitochondrial respiration with succinate. MB had no protective effects on amylase activity or on urea content in serum in AP. CONCLUSION The disturbances of kidney mitochondrial energy metabolism in experimental model of severe AP can be ameliorated by MB administration.
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Affiliation(s)
- Irma Kuliaviene
- Department of Gastroenterology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Rasa Baniene
- Neuroscience Institute, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Simona Virketyte
- Neuroscience Institute, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Marius Kincius
- Institute for Digestive Research, Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Eugene Jansen
- Centre for Health Protection, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - Antanas Gulbinas
- Institute for Digestive Research, Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Limas Kupcinskas
- Department of Gastroenterology, Lithuanian University of Health Sciences, Kaunas, Lithuania.,Institute for Digestive Research, Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Sonata Trumbeckaite
- Neuroscience Institute, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Vilmante Borutaite
- Neuroscience Institute, Lithuanian University of Health Sciences, Kaunas, Lithuania
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Chen JL, Dai L, Zhang P, Chen W, Cai GS, Qi XW, Hu MZ, Du B, Pang QF. Methylene blue attenuates acute liver injury induced by paraquat in rats. Int Immunopharmacol 2015; 28:808-12. [DOI: 10.1016/j.intimp.2015.04.044] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 04/16/2015] [Accepted: 04/21/2015] [Indexed: 12/28/2022]
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Waseem M, Bhardwaj M, Tabassum H, Raisuddin S, Parvez S. Cisplatin hepatotoxicity mediated by mitochondrial stress. Drug Chem Toxicol 2015; 38:452-9. [PMID: 25678195 DOI: 10.3109/01480545.2014.992437] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONTEXT Chemotherapy has long been the keystone of cancer regimen, and comprehensive research has been done on the development of more potent and less toxic anti-cancer agents. Cisplatin (CP) is a potent and extensively used chemotherapeutic agent. There is paucity of literature involving role of mitochondria in mediating CP-induced hepatic toxicity, and its underlying mechanism remains unclear. Oxidative stress is a well-established biomarker of the mitochondrial toxicity. OBJECTIVE This study evaluates the dose-dependent effects of CP-induced mitotoxicity under in vitro conditions, using mitochondria from rat liver. MATERIALS AND METHODS The aim of our study was to determine the effect of CP with different concentrations in isolated liver mitochondria as an in vitro model. RESULTS CP exposure showed significantly compromised level of non enzymatic and enzymatic antioxidants with higher extent of lipid and protein oxidation. CP also caused significant alterations in the activity of respiratory chain enzymes (complex I-III and V) in liver mitochondria. DISCUSSION AND CONCLUSION It is suggested that mitochondria can be employed as a model for future investigations of anticancer drug-induced hepatotoxicity under in vitro conditions. Studies with selected pharmaceuticals and nutraceuticals might certainly play a definite role in deciphering cellular and molecular mechanisms of CP-induced hepatotoxicity and its amelioration.
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Affiliation(s)
- Mohammad Waseem
- a Department of Medical Elementology and Toxicology , Jamia Hamdard (Hamdard University) , New Delhi , India
| | - Monica Bhardwaj
- a Department of Medical Elementology and Toxicology , Jamia Hamdard (Hamdard University) , New Delhi , India
| | - Heena Tabassum
- a Department of Medical Elementology and Toxicology , Jamia Hamdard (Hamdard University) , New Delhi , India
| | - Sheikh Raisuddin
- a Department of Medical Elementology and Toxicology , Jamia Hamdard (Hamdard University) , New Delhi , India
| | - Suhel Parvez
- a Department of Medical Elementology and Toxicology , Jamia Hamdard (Hamdard University) , New Delhi , India
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Collange O, Charles AL, Lavaux T, Noll E, Bouitbir J, Zoll J, Chakfé N, Mertes M, Geny B. Compartmentalization of Inflammatory Response Following Gut Ischemia Reperfusion. Eur J Vasc Endovasc Surg 2015; 49:60-5. [DOI: 10.1016/j.ejvs.2014.10.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Accepted: 10/11/2014] [Indexed: 11/27/2022]
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Remote effects of lower limb ischemia-reperfusion: impaired lung, unchanged liver, and stimulated kidney oxidative capacities. BIOMED RESEARCH INTERNATIONAL 2014; 2014:392390. [PMID: 25180180 PMCID: PMC4142554 DOI: 10.1155/2014/392390] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Accepted: 05/28/2014] [Indexed: 12/20/2022]
Abstract
Remote organ impairments are frequent and increase patient morbidity and mortality after lower limb ischemia-reperfusion (IR). We challenged the hypothesis that lower limb IR might also impair lung, renal, and liver mitochondrial respiration. Two-hour tourniquet-induced ischemia was performed on both hindlimbs, followed by a two-hour reperfusion period in C57BL6 mice. Lungs, liver and kidneys maximal mitochondrial respiration (V(max)), complexes II, III, and IV activity (V(succ)), and complex IV activity (V(TMPD)) were analyzed on isolated mitochondria. Lower limb IR decreased significantly lung V(max) (29.4 ± 3.3 versus 24 ± 3.7 μmol O2/min/g dry weight, resp.; P = 0.042) and tended to reduce V(succ) and V(TMPD). IR did not modify liver but increased kidneys mitochondrial respiration (79.5 ± 19.9 versus 108.6 ± 21.4, P = 0.035, and 126 ± 13.4 versus 142.4 ± 10.4 μmol O2/min/g dry weight for V(max) and V(succ), resp.). Kidneys mitochondrial coupling was increased after IR (6.5 ± 1.3 versus 8.8 ± 1.1, P = 0.008). There were no histological changes in liver and kidneys. Thus, lung mitochondrial dysfunction appears as a new early marker of hindlimb IR injuries in mice. Further studies will be useful to determine whether enhanced kidneys mitochondrial function allows postponing kidney impairment in lower limb IR setting.
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Attenuation of noise-induced hearing loss using methylene blue. Cell Death Dis 2014; 5:e1200. [PMID: 24763057 PMCID: PMC4001318 DOI: 10.1038/cddis.2014.170] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 03/19/2014] [Accepted: 03/19/2014] [Indexed: 01/05/2023]
Abstract
The overproduction of reactive oxygen species (ROS) and reactive nitrogen species (RNS) has been known to contribute to the pathogenesis of noise-induced hearing loss. In this study, we discovered that in BALB/c mice pretreatment with methylene blue (MB) for 4 consecutive days significantly protected against cochlear injury by intense broad-band noise for 3 h. It decreased both compound threshold shift and permanent threshold shift and, further, reduced outer hair cell death in the cochlea. MB also reduced ROS and RNS formation after noise exposure. Furthermore, it protected against rotenone- and antimycin A-induced cell death and also reversed ATP generation in the in vitro UB-OC1 cell system. Likewise, MB effectively attenuated the noise-induced impairment of complex IV activity in the cochlea. In addition, it increased the neurotrophin-3 (NT-3) level, which could affect the synaptic connections between hair cells and spiral ganglion neurons in the noise-exposed cochlea, and also promoted the conservation of both efferent and afferent nerve terminals on the outer and inner hair cells. These findings suggest that the amelioration of impaired mitochondrial electron transport and the potentiation of NT-3 expression by treatment with MB have a significant therapeutic value in preventing ROS-mediated sensorineural hearing loss.
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Modulating the p66shc signaling pathway with protocatechuic acid protects the intestine from ischemia-reperfusion injury and alleviates secondary liver damage. ScientificWorldJournal 2014; 2014:387640. [PMID: 24757420 PMCID: PMC3976807 DOI: 10.1155/2014/387640] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2013] [Accepted: 02/16/2014] [Indexed: 01/23/2023] Open
Abstract
Intestinal ischemia-reperfusion (I/R) injury is a serious clinical pathophysiological process that may result in acute local intestine and remote liver injury. Protocatechuic acid (PCA), which has been widely studied as a polyphenolic compound, induces expression of antioxidative genes that combat oxidative stress and cell apoptosis. In this study, we investigated the effect of PCA pretreatment for protecting intestinal I/R-induced local intestine and remote liver injury in mice. Intestinal I/R was established by superior mesenteric artery occlusion for 45 min followed by reperfusion for 90 min. After the reperfusion period, PCA pretreatment markedly alleviated intestine and liver injury induced by intestinal I/R as indicated by histological alterations, decreases in serological damage parameters and nuclear factor-kappa B and phospho-foxo3a protein expression levels, and increases in glutathione, glutathione peroxidase, manganese superoxide dismutase protein expression, and Bcl-xL protein expression in the intestine and liver. These parameters were accompanied by PCA-induced adaptor protein p66shc suppression. These results suggest that PCA has a significant protective effect in the intestine and liver following injury induced by intestinal I/R. The protective effect of PCA may be attributed to the suppression of p66shc and the regulation of p66shc-related antioxidative and antiapoptotic factors.
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Jung M, Metzger D. Methylene blue protects mitochondrial respiration from ethanol withdrawal stress. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/abb.2013.47a2004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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