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Liu JJ, Xu Y, Chen S, Hao CF, Liang J, Li ZL. The mechanism of Yinchenhao decoction in treating obstructive-jaundice-induced liver injury based on Nrf2 signaling pathway. World J Gastroenterol 2022; 28:4635-4648. [PMID: 36157920 PMCID: PMC9476870 DOI: 10.3748/wjg.v28.i32.4635] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 06/08/2022] [Accepted: 06/24/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Obstructive jaundice (OJ) is caused by bile excretion disorder after partial or complete bile duct obstruction. It may cause liver injury through various mechanisms. Traditional Chinese medicine (TCM) has a lot of advantages in treating OJ. The recovery of liver function can be accelerated by combining Chinese medicine treatment with existing clinical practice. Yinchenhao decoction (YCHD), a TCM formula, has been used to treat jaundice. Although much progress has been made in recent years in understanding the mechanism of YCHD in treating OJ-induced liver injury, it is still not clear.
AIM To investigate chemical components of YCHD that are effective in the treatment of OJ and predict the mechanism of YCHD.
METHODS The active components and putative targets of YCHD were predicted using a network pharmacology approach. Gene Ontology biological process and Kyoto Encyclopedia of Genes and Genomes path enrichment analysis were carried out by cluster profile. We predicted the biological processes, possible targets, and associated signaling pathways that YCHD may involve in the treatment of OJ. Thirty male Sprague–Dawley rats were randomly divided into three groups, each consisting of 10 rats: the sham group (Group S), the OJ model group (Group M), and the YCHD-treated group (Group Y). The sham group only received laparotomy. The OJ model was established by ligating the common bile duct twice in Groups M and Y. For 1 wk, rats in Group Y were given a gavage of YCHD (3.6 mL/kg) twice daily, whereas rats in Groups S and M were given the same amount of physiological saline after intragastric administration daily. After 7 d, all rats were killed, and the liver and blood samples were collected for histopathological and biochemical examinations. Total bilirubin (TBIL), direct bilirubin (DBIL), alanine aminotransferase (ALT), and aspartate transaminase (AST) levels in the blood samples were detected. The gene expression levels of inducible nitric oxide synthase (iNOS) and endothelial nitric oxide synthase (eNOS), and the nucleus positive rate of NF-E2 related factor 2 (Nrf2) protein were measured. Western blot analyses were used to detect the protein and gene expression levels of Nrf2, Kelch-like ECH-associated protein 1, NAD(P)H quinone dehydrogenase 1 (NQO1), and glutathione-S-transferase (GST) in the liver tissues. One-way analysis of variance was used to evaluate the statistical differences using the statistical package for the social sciences 23.0 software. Intergroup comparisons were followed by the least significant difference test and Dunnett’s test.
RESULTS The effects of YCHD on OJ involve biological processes such as DNA transcription factor binding, RNA polymerase II specific regulation, DNA binding transcriptional activator activity, and nuclear receptor activity. The protective effects of YCHD against OJ were closely related to 20 pathways, including the hepatitis-B, the mitogen-activated protein kinase, the phosphatidylinositol 3-kinase/protein kinase B, and tumor necrosis factor signaling pathways. YCHD alleviated the swelling and necrosis of hepatocytes. Following YCHD treatment, the serum levels of TBIL (176.39 ± 17.03 μmol/L vs 132.23 ± 13.88 μmol/L, P < 0.01), DBIL (141.41 ± 14.66 μmol/L vs 106.43 ± 10.88 μmol/L, P < 0.01), ALT (332.07 ± 34.34 U/L vs 269.97 ± 24.78 U/L, P < 0.05), and AST (411.44 ± 47.64 U/L vs 305.47 ± 29.36 U/L, P < 0.01) decreased. YCHD promoted the translocation of Nrf2 into the nucleus (12.78 ± 0.99 % vs 60.77 ± 1.90 %, P < 0.001). After YCHD treatment, we found a decrease in iNOS (0.30 ± 0.02 vs 0.20 ± 0.02, P < 0.001) and an increase in eNOS (0.18 ± 0.02 vs 0.32 ± 0.02, P < 0.001). Meanwhile, in OJ rats, YCHD increased the expressions of Nrf2 (0.57 ± 0.03 vs 1.18 ± 0.10, P < 0.001), NQO1 (0.13 ± 0.09 vs 1.19 ± 0.07, P < 0.001), and GST (0.12 ± 0.02 vs 0.50 ± 0.05, P < 0.001), implying that the potential mechanism of YCHD against OJ-induced liver injury was the upregulation of the Nrf2 signaling pathway.
CONCLUSION OJ-induced liver injury is associated with the Nrf2 signaling pathway. YCHD can reduce liver injury and oxidative damage by upregulating the Nrf2 pathway.
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Affiliation(s)
- Jun-Jian Liu
- The Second Department of Hepatobiliary and Pancreatic Surgery, Tianjin Medical University NanKai Hospital, Tianjin 300102, China
| | - Yan Xu
- Graduate School, Tianjin Medical University, Tianjin 3000070, China
| | - Shuai Chen
- Department of Thoracic Surgery, Xuzhou City Hospital of Traditional Chinese Medicine, Xuzhou 221000, Jiangsu Province, China
| | - Cheng-Fei Hao
- The Second Department of Hepatobiliary and Pancreatic Surgery, Tianjin Medical University NanKai Hospital, Tianjin 300102, China
| | - Jing Liang
- School of Foreign Languages, Chengdu University of Traditional Chinese Medicine, Chengdu 610000, Sichuan Province, China
| | - Zhong-Lian Li
- The Second Department of Hepatobiliary and Pancreatic Surgery, Tianjin Medical University NanKai Hospital, Tianjin 300102, China
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Dysbiosis of the Female Murine Gut Microbiome Exacerbates Neutrophil-Mediated Vascular Allograft Injury by Affecting Immunoregulation by Acetate. Transplantation 2022; 106:2155-2165. [PMID: 35485447 DOI: 10.1097/tp.0000000000004161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND The gut microbiota affects immune responses that cause organ transplant rejection, but the mechanisms by which this occurs remain poorly understood. METHODS We have examined, in a murine model, how disruption of the gut microbiota with antibiotics early in life alters this microbial community later in life to affect immune responses that injure vascular allografts. RESULTS Analysis of 16S rRNA and whole genome sequencing of the gut microbiota demonstrated that early life disruption of this microbial community with antibiotics caused a reduction in taxa and enzymatic genes involved in the synthesis of acetate, an immunoregulatory metabolite in mice and humans. When allograft vascular injury was examined, early life disruption of the gut microbiota increased neutrophil accumulation and related medial injury of transplanted arteries. Normalizing the gut microbiota by co-housing and oral administration of acetate prevented neutrophil-mediated vascular allograft injury. CONCLUSIONS Dysbiosis of the gut microbiome that reduces its production of the immunoregulatory metabolite acetate exacerbates neutrophil-mediated allograft vascular injury.
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Zhang YP, Liu XR, Yang MW, Yang SL, Hong FF. New progress in understanding roles of nitric oxide during hepatic ischemia-reperfusion injury. World J Hepatol 2022; 14:504-515. [PMID: 35582289 PMCID: PMC9055193 DOI: 10.4254/wjh.v14.i3.504] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 07/09/2021] [Accepted: 02/19/2022] [Indexed: 02/06/2023] Open
Abstract
Hepatic ischemia-reperfusion injury (HIRI) is a major clinical cause of morbidity and mortality in liver surgery and transplantation. Many studies have found that nitric oxide (NO) plays an important role in the HIRI and its increase or decrease can affect the progression and outcome of HIRI. However, the role of NO in HIRI is controversial and complicated. NO derived by endothelial NO synthase (eNOS) shows a protective role in HIRI, while excessive NO derived by inducible NO synthase (iNOS) accelerates inflammation and increases oxidative stress, further aggravating HIRI. Nevertheless, the overexpression of eNOS may exacerbate HIRI and iNOS-derived NO in some cases reduces HIRI. Here we review the new progress in the understanding of the roles of NO during HIRI: (1) NO possesses different roles in HIRI by increasing NO bioavailability, down-regulating leukotriene C4 synthase, inhibiting the activation of the nuclear factorκB (NFκB) pathway, enhancing cell autophagy, and reducing inflammatory cytokines and reactive oxygen species (ROS). And NO has both protective and deleterious effects by regulating apoptotic factors; (2) eNOS promotes NO production and suppresses its own overexpression, exerting a hepatoprotective effect reversely. Its activation is regulated by the PI3K/Akt and KLF2/AMPK pathways; and (3) iNOS derived NO mainly has deteriorating effects on HIRI, while it may have a protective function under some conditions. Their expression should reach a balance to reduce the adverse side and make NO protective in the treatment of HIRI. Thus, it can be inferred that NO modulating drugs may be a new direction in the treatment of HIRI or may be used as an adjunct to mitigate HIRI for the purpose of protecting the liver.
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Affiliation(s)
- Yi-Ping Zhang
- Experimental Center of Pathogen Biology, College of Medicine, Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Xin-Ran Liu
- Experimental Center of Pathogen Biology, College of Medicine, Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Mei-Wen Yang
- Department of Surgery, Fuzhou Medical College, Nanchang University, Fuzhou 344000, Jiangxi Province, China
| | - Shu-Long Yang
- Department of Physiology, College of Medicine, Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Fen-Fang Hong
- Experimental Center of Pathogen Biology, College of Medicine, Nanchang University, Nanchang 330006, Jiangxi Province, China.
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Grezzana Filho TDJM, Longo L, Santos JLD, Gabiatti G, Boffil C, Santos EBD, Cerski CTS, Chedid MF, Corso CO. Induction of selective liver hypothermia prevents significant ischemia/reperfusion injury in Wistar rats after 24 hours. Acta Cir Bras 2020; 35:e202000205. [PMID: 32428061 PMCID: PMC7217597 DOI: 10.1590/s0102-865020200020000005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 01/19/2020] [Indexed: 02/08/2023] Open
Abstract
Purpose To investigate the effects of induction of selective liver hypothermia in a rodent model. Methods Seven male Wistar rats were subjected to 90 minutes of partial 70% liver ischemia and topic liver 26°C hypothermia (H group). Other seven male Wistar rats were subjected to 90 minutes of partial 70% normothermic liver ischemia (N group). Five additional rats underwent a midline incision and section of liver ligaments under normothermic conditions and without any liver ischemia (sham group). All animals were sacrificed 24-h after reperfusion, and livers were sampled for analyses. Pathology sections were scored for sinusoidal congestion, ballooning, hepatocelllular necrosis and the presence of neutrophilic infiltrates. Results At the end of the experiment, liver tissue expressions of TNF-ɑ, IL-1β, iNOS and TNF-ɑ/IL-10 ratio were significantly reduced in the H group compared to N group, whereas IL-10 and eNOS were significantly increased in H group. Histopathological injury scores revealed a significant decrease in ischemia/reperfusion (I/R) injuries in H group. Conclusion Selective liver hypothermia prevented I/R injury by inhibiting the release of inflammatory cytokines, preserves microcirculation, prevents hepatocellular necrosis and leukocyte infiltration, allowing maintenance of the liver architecture.
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Role of Reduced Nitric Oxide in Liver Cell Apoptosis Inhibition During Liver Damage. Arch Med Res 2018; 49:219-225. [DOI: 10.1016/j.arcmed.2018.09.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 09/14/2018] [Indexed: 01/05/2023]
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Longo L, Sinigaglia-Fratta LX, Weber GR, Janz-Moreira A, Kretzmann NA, Grezzana-Filho TDJM, Possa-Marroni N, Corso CO, Schmidt-Cerski CT, Reverbel-da-Silveira T, Álvares-da-Silva MR, dos-Santos JL. Hypothermia is better than ischemic preconditioning for preventing early hepatic ischemia/reperfusion in rats. Ann Hepatol 2016; 15:110-20. [PMID: 26626646 DOI: 10.5604/16652681.1184285] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Topical hypothermia (TH) and ischemic preconditioning (IPC) are used to decrease I/R injury. The efficacy of isolated or combined use of TH and IPC in the liver regarding inflammation and cytoprotection in early ischemia/reperfusion (I/R) injury needs to be evaluated. MATERIAL AND METHODS Wistar rats underwent 70% liver ischemia for 90 min followed by 120 min of reperfusion. Livers of animals allocated in the sham, normothermic ischemia (NI), IPC, TH, and TH+IPC groups were collected for molecular analyses by ELISA and Western blot, aiming to compare proinflammatory, anti-inflammatory, and antioxidant profiles. RESULTS Compared with NI, TH presented decreased tumor necrosis factor (TNF)-α, interleukin (IL)-1β, IL-6 and IL-12 concentrations and increased IL-10 levels. TH animals displayed lower inducible nitric oxide synthase (iNOS) and higher endothelial nitric oxide synthase (eNOS) expressions. NAD(P)H-quinone oxidoreductase-1(NQO1) expression was also lower with TH. Isolated IPC and NI were similar regarding all these markers. TH+IPC was associated with decreased IL-12 concentration and reduced iNOS and NQO1 expressions, similarly to isolated TH. Expression of Kelch-like ECH-associated protein (Keap)-1 was increased and expression of nuclear and cytosolic nuclear erythroid 2-related factor 2 (Nrf2) was decreased with TH+IPC vs. NI. CONCLUSION TH was the most effective method of protection against early I/R injury. Isolated IPC entailed triggering of second-line antioxidant defense enzymes. Combined TH+IPC seemed to confer no additional advantage over isolated TH in relation to the inflammatory process, but had the advantage of completely avoid second-line antioxidant defense enzymes.
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Affiliation(s)
- Larisse Longo
- Graduate Program in Gastroenterology and Hepatology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Leila Xavier Sinigaglia-Fratta
- Graduate Program in Gastroenterology and Hepatology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Giovana R Weber
- Graduate Program in Gastroenterology and Hepatology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Andrea Janz-Moreira
- Experimental Laboratory of Hepatology and Gastroenterology,Porto Alegre, Brazil
| | | | | | - Norma Possa-Marroni
- Experimental Laboratory of Hepatology and Gastroenterology,Porto Alegre, Brazil
| | | | | | | | - Mário R Álvares-da-Silva
- Graduate Program in Gastroenterology and Hepatology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Jorge L dos-Santos
- Experimental Laboratory of Hepatology and Gastroenterology,Porto Alegre, Brazil
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Jones RT, Toledo-Pereyra LH, Quesnelle KM. Selectins in Liver Ischemia and Reperfusion Injury. J INVEST SURG 2015; 28:292-300. [DOI: 10.3109/08941939.2015.1056920] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Yamanaka K, Houben P, Bruns H, Schultze D, Hatano E, Schemmer P. A systematic review of pharmacological treatment options used to reduce ischemia reperfusion injury in rat liver transplantation. PLoS One 2015; 10:e0122214. [PMID: 25919110 PMCID: PMC4412498 DOI: 10.1371/journal.pone.0122214] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Accepted: 02/10/2015] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Although animal studies models are frequently used for the purpose of attenuating ischemia reperfusion injury (IRI) in liver transplantation (LT), many of pharmacological agents have not become part of clinical routine. METHODS A search was performed using the PubMed database to identify agents, from which 58 articles containing 2700 rat LT procedures were selected. The identified pharmacological agents were categorized as follows: I - adenosine agonists, nitric oxide agonists, endothelin antagonists, and prostaglandins, II - Kupffer cell inactivator, III - complement inhibiter, IV - antioxidant, V - neutrophil inactivator, VI -anti-apoptosis agent, VII - heat shock protein and nuclear factor kappa B inducer, VIII - metabolic agent, IX - traditional Chinese medicine, and X - others. Meta-analysis using 7-day-survival rate was also performed with Mantel-Haenszel's Random effects model. RESULTS The categorization revealed that the rate of donor-treated experiments in each group was highest for agents from Group II (70%) and VII (71%), whereas it was higher for agents from Group V (83%) in the recipient-treated experiments. Furthermore, 90% of the experiments with agents in Group II provided 7-day-survival benefits. The Risk Ratio (RR) of the meta-analysis was 2.43 [95% CI: 1.88-3.14] with moderate heterogeneity. However, the RR of each of the studies was too model-dependent to be used in the search for the most promising pharmacological agent. CONCLUSION With regard to hepatic IRI pathology, the categorization of agents of interest would be a first step in designing suitable multifactorial and pleiotropic approaches to develop pharmacological strategies.
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Affiliation(s)
- Kenya Yamanaka
- Department of General and Transplant Surgery, University Hospital of Heidelberg, Heidelberg, Germany
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Philipp Houben
- Department of General and Transplant Surgery, University Hospital of Heidelberg, Heidelberg, Germany
| | - Helge Bruns
- Department of General and Transplant Surgery, University Hospital of Heidelberg, Heidelberg, Germany
| | - Daniel Schultze
- Department of General and Transplant Surgery, University Hospital of Heidelberg, Heidelberg, Germany
| | - Etsuro Hatano
- Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Peter Schemmer
- Department of General and Transplant Surgery, University Hospital of Heidelberg, Heidelberg, Germany
- * E-mail:
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Björnsson B, Bojmar L, Olsson H, Sundqvist T, Sandström P. Nitrite, a novel method to decrease ischemia/reperfusion injury in the rat liver. World J Gastroenterol 2015; 21:1775-1783. [PMID: 25684942 PMCID: PMC4323453 DOI: 10.3748/wjg.v21.i6.1775] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 08/24/2014] [Accepted: 10/15/2014] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate whether nitrite administered prior to ischemia/reperfusion (I/R) reduces liver injury.
METHODS: Thirty-six male Sprague-Dawley rats were randomized to 3 groups, including sham operated (n = 8), 45-min segmental ischemia of the left liver lobe (IR, n = 14) and ischemia/reperfusion (I/R) preceded by the administration of 480 nmol of nitrite (n = 14). Serum transaminases were measured after 4 h of reperfusion. Liver microdialysate (MD) was sampled in 30-min intervals and analyzed for glucose, lactate, pyruvate and glycerol as well as the total nitrite and nitrate (NOx). The NOx was measured in serum.
RESULTS: Aspartate aminotransferase (AST) at the end of reperfusion was higher in the IR group than in the nitrite group (40 ± 6.8 μkat/L vs 22 ± 2.6 μkat/L, P = 0.022). Similarly, alanine aminotransferase (ALT) was also higher in the I/R group than in the nitrite group (34 ± 6 μkat vs 14 ± 1.5 μkat, P = 0.0045). The NOx in MD was significantly higher in the nitrite group than in the I/R group (10.1 ± 2.9 μmol/L vs 3.2 ± 0.9 μmol/L, P = 0.031) after the administration of nitrite. During ischemia, the levels decreased in both groups and then increased again during reperfusion. At the end of reperfusion, there was a tendency towards a higher NOx in the I/R group than in the nitrite group (11.6 ± 0.7 μmol/L vs 9.2 ± 1.1 μmol/L, P = 0.067). Lactate in MD was significantly higher in the IR group than in the nitrite group (3.37 ± 0.18 mmol/L vs 2.8 ± 0.12 mmol/L, P = 0.01) during ischemia and the first 30 min of reperfusion. During the same period, glycerol was also higher in the IRI group than in the nitrite group (464 ± 38 μmol/L vs 367 ± 31 μmol/L, P = 0.049). With respect to histology, there were more signs of tissue damage in the I/R group than in the nitrite group, and 29% of the animals in the I/R group exhibited necrosis compared with none in the nitrite group. Inducible nitric oxide synthase transcription increased between early ischemia (t = 15) and the end of reperfusion in both groups.
CONCLUSION: Nitrite administered before liver ischemia in the rat liver reduces anaerobic metabolism and cell necrosis, which could be important in the clinical setting.
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Li R, Mi Y, Tan G, Zhang W, Li G, Sun X. A novel in situ model of liver cold ischemia-reperfusion in rats. J Surg Res 2014; 192:195-9. [PMID: 24953989 DOI: 10.1016/j.jss.2014.05.042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Revised: 05/14/2014] [Accepted: 05/16/2014] [Indexed: 12/11/2022]
Abstract
BACKGROUND Orthotopic liver transplantation (OLT) is being used for studying cold ischemia reperfusion (I/R)-induced injury in experimental animals, but the technique is complicated and it does not accurately reflect the pathophysiology. Here, we report a novel model, termed "in situ liver cold ischemia (ISLCI)", in Wistar rats. METHODS ISLCI was achieved in rats by establishing a portal-jugular shunt and a cannula shunt in inferior vena cava, and the liver was continuously perfused with lactate Ringer's solution at a speed of 150 mL/h through the portal vein for 60 min. Portal venous pressure, serum levels of total bilirubin, alkaline phosphatase, alanine aminotransferase and γ-glutamyl transpeptidase (GGT), and hepatic histopathology were examined, and compared with rats undergoing OLT, in which the donor liver was subjected to a 60 min cold ischemia. RESULTS Livers from ISLCI and OLT rats showed histopathologic changes characteristic of I/R-induced injury when examined on days 1 and 7, with complete recovery 14 d after reperfusion. Compared with OLT rats, ISLCI rats had significantly lower levels of portal venous pressure 1 and 10 min after porta hepatis clamping. They suffered a milder degree of I/R-induced hepatic injury, reflected by significantly lower levels of GGT, alanine aminotransferase, and alkaline phosphatase on day 1, and a significant lower level of GGT and a lower histopathologic score on day 7 after reperfusion. CONCLUSIONS Our preliminary results indicate that the ISLCI model is reliable and technically easier, and is superior to OLT for studying cold I/R injury.
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Affiliation(s)
- Rui Li
- Department of General Surgery, Liaocheng People's Hospital, Liaocheng, China
| | - Yuetang Mi
- Department of General Surgery, Liaocheng People's Hospital, Liaocheng, China
| | - Gang Tan
- Department of General Surgery, The Hepatosplenic Surgery Center, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Wei Zhang
- Department of General Surgery, Liaocheng People's Hospital, Liaocheng, China
| | - Guixia Li
- Department of General Surgery, Liaocheng People's Hospital, Liaocheng, China
| | - Xueying Sun
- Department of General Surgery, The Hepatosplenic Surgery Center, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
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Lim EJ, Do GM, Shin JH, Kwon O. Protective effects of Acanthopanax divaricatus vat. albeofructus and its active compound on ischemia–reperfusion injury of rat liver. Biochem Biophys Res Commun 2013; 432:599-605. [DOI: 10.1016/j.bbrc.2013.02.039] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Accepted: 02/13/2013] [Indexed: 10/27/2022]
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Klune JR, Dhupar R, Kimura S, Ueki S, Cardinal J, Nakao A, Nace G, Evankovich J, Murase N, Tsung A, Geller DA. Interferon regulatory factor-2 is protective against hepatic ischemia-reperfusion injury. Am J Physiol Gastrointest Liver Physiol 2012; 303:G666-73. [PMID: 22744333 PMCID: PMC3468551 DOI: 10.1152/ajpgi.00050.2012] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Interferon regulatory factor (IRF)-1 is a nuclear transcription factor that induces inflammatory cytokine mediators and contributes to hepatic ischemia-reperfusion (I/R) injury. No strategies to mitigate IRF1-mediated liver damage exist. IRF2 is a structurally similar endogenous protein that competes with IRF1 for DNA binding sites in IRF-responsive target genes and acts as a competitive inhibitor. However, the role of IRF2 in hepatic injury during hypoxic or inflammatory conditions is unknown. We hypothesize that IRF2 overexpression may mitigate IRF1-mediated I/R damage. Endogenous IRF2 is basally expressed in normal livers and is mildly increased by ischemia alone. Overexpression of IRF2 protects against hepatic warm I/R injury. Furthermore, we demonstrate that IRF2 overexpression limits production of IRF1-dependent proinflammatory genes, such as IL-12, IFNβ, and inducible nitric oxide synthase, even in the presence of IRF1 induction. Additionally, isograft liver transplantation with IRF2 heterozygote knockout (IRF2(+/-)) donor grafts that have reduced endogenous IRF2 levels results in worse injury following cold I/R during murine orthotopic liver transplantation. These findings indicate that endogenous intrahepatic IRF2 protein is protective, because the IRF2-deficient liver donor grafts exhibited increased liver damage compared with the wild-type donor grafts. In summary, IRF2 overexpression protects against I/R injury by decreasing IRF1-dependent injury and may represent a novel therapeutic strategy.
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Affiliation(s)
- John R. Klune
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Rajeev Dhupar
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Shoko Kimura
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Shinya Ueki
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Jon Cardinal
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Atsunori Nakao
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Gary Nace
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - John Evankovich
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Noriko Murase
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Allan Tsung
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - David A. Geller
- Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
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Taha MO, Caricati-Neto A, Ferreira RM, Simões MDJ, Monteiro HP, Fagundes DJ. L-arginine in the ischemic phase protects against liver ischemia-reperfusion injury. Acta Cir Bras 2012; 27:616-23. [DOI: 10.1590/s0102-86502012000900005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2012] [Accepted: 07/17/2012] [Indexed: 02/07/2023] Open
Abstract
PURPOSE: To investigate the effects of intravenous L-arginine (LG) infusion on liver morphology, function and proinflammatory response of cytokines during the early phase of ischemia-reperfusion injury (IRI). METHODS: Thirty rabbits were subjected to 60 minutes of hepatic ischemia and 120 minutes of reperfusion. An intravenous injection of saline or L-arginine was administered five minutes before the ischemia and five minutes before initiating the reperfusion and at the 55th and 115th minutes after the ischemia. Samples were collected for histological analysis of the liver and measurements of the serum AST, ALT and LDH and the cytokines IL-6 and TNF-alpha. RESULTS: It was observed a significant reduction of sinusoidal congestion, cytoplasmic vacuolization, infiltration of polymorphonuclear leukocyte, nuclear pyknosis, necrosis and steatosis in liver tissue, as well as AST, ALT and LDH after injection of LG in the ischemia (p <0.001). Lower levels of IL-6 and TNF-alpha were associated with LG infusion during ischemia. Higher levels these proteins were observed in animals receiving LG during reperfusion. CONCLUSION: L-arginine protects the liver against ischemia/reperfusion injury, mainly when is administered during the ischemic phase.
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Gomez-Sucerquia LJ, Blas-Garcia A, Marti-Cabrera M, Esplugues JV, Apostolova N. Profile of stress and toxicity gene expression in human hepatic cells treated with Efavirenz. Antiviral Res 2012; 94:232-41. [DOI: 10.1016/j.antiviral.2012.04.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2012] [Revised: 04/05/2012] [Accepted: 04/10/2012] [Indexed: 11/16/2022]
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Masuda T, Iwashita Y, Hagiwara S, Ohta M, Inomata M, Noguchi T, Kitano S. WITHDRAWN: Alpha-lipoic acid derivate DHLHZn reduces hepatic ischemia/reperfusion injury by inhibition of pro-inflammatory signaling. J Surg Res 2012. [DOI: 10.1016/j.jss.2012.04.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abu-Amara M, Yang SY, Seifalian A, Davidson B, Fuller B. The nitric oxide pathway--evidence and mechanisms for protection against liver ischaemia reperfusion injury. Liver Int 2012; 32:531-43. [PMID: 22316165 DOI: 10.1111/j.1478-3231.2012.02755.x] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2010] [Accepted: 12/29/2011] [Indexed: 02/13/2023]
Abstract
Ischaemia reperfusion (IR) injury is a clinical entity with a major contribution to the morbidity and mortality of liver surgery and transplantation. A central pathway of protection against IR injury utilizes nitric oxide (NO). Nitric oxide synthase (NOS) enzymes manufacture NO from L-arginine. NO generated by the endothelial NOS (eNOS) isoform protects against liver IR injury, whereas inducible NOS (iNOS)-derived NO may have either a protective or a deleterious effect during the early phase of IR injury, depending on the length of ischaemia, length of reperfusion and experimental model. In late phase hepatic IR injury, iNOS-derived NO plays a protective role. In addition to NOS consumption of L-arginine during NO synthesis, this amino acid may also be metabolized by arginase, an enzyme whose release is increased during prolonged ischaemia, and therefore diverts L-arginine away from NOS metabolism leading to a drop in the rate of NO synthesis. NO most commonly acts through the soluble guanylyl cyclase-cyclic GMP- protein kinase G pathway to ameliorate hepatic IR injury. Both endogenously generated and exogenously administered NO donors protect against liver IR injury. The beneficial effects of NO on liver IR are not, however, universal, and certain conditions, such as steatosis, may influence the protective effects of NO. In this review, the evidence for, and mechanisms of these protective actions of NO are discussed, and areas in need of further research are highlighted.
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Affiliation(s)
- Mahmoud Abu-Amara
- Liver Transplantation and Hepatobiliary Unit, Royal Free Hospital, London, UK
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Qi Y, Qu L, Lou Z, Chai Y, Zhang W, Wu Y, Fan G. Metabonomic Investigation on Plasma Samples of Liver Transplanted Rats. ANAL LETT 2011. [DOI: 10.1080/00032719.2010.551697] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Interferon regulatory factor 1 mediates acetylation and release of high mobility group box 1 from hepatocytes during murine liver ischemia-reperfusion injury. Shock 2011; 35:293-301. [PMID: 20856174 DOI: 10.1097/shk.0b013e3181f6aab0] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Damage-associated molecular patterns (DAMPs) initiate inflammatory pathways that are common to both sterile and infectious processes. The DAMP, high-mobility group box 1 (HMGB1), and the transcription factor, interferon regulatory factor 1 (IRF-1), have been independently associated as key players in ischemia-reperfusion (I/R) injury. Our study demonstrates that IRF-1 contributes to hepatocellular release of HMGB1 and further that IRF-1 is a necessary component of HMGB1 release in response to hypoxia or after liver I/R. We also link the nuclear upregulation of IRF-1 to the presence of functional Toll-like receptor 4 (TLR4), a pattern recognition receptor also important in sterile and infectious processes. Using IRF-1 chimeric mice, we show that IRF-1 upregulation in hepatic parenchymal cells, and not in the bone marrow-derived immune cells, is responsible for HMGB1 release during ischemic liver injury. Finally, our study also demonstrates a role for IRF-1 in modulating the acetylation status and subsequent release of HMGB1 through histone acetyltransferases. We found that serum HMGB1 is acetylated after liver I/R and that this process was dependent on IRF-1. Additionally, liver I/R induced a direct association of IRF-1 and the nuclear histone acetyltransferase enzyme p300. Together, these findings suggest that I/R-induced release of acetylated HMGB1 is a process that is dependent on TLR4-mediated upregulation of IRF-1.
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Wu T, Wang ZZ. Nitric oxide protects against pancreatic and renal injury in rats with acute necrotizing pancreatitis and hyperlipidemia. Shijie Huaren Xiaohua Zazhi 2011; 19:1022-1027. [DOI: 10.11569/wcjd.v19.i10.1022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To determine whether nitric oxide (NO) protects against pancreatic and renal injury in rats with acute necrotizing pancreatitis (ANP) and hyperlipidemia.
METHODS: Forty male Sprague-Dawley rats were fed a high-fat diet for 4 weeks to induce hyperlipidemia. The rats were randomly divided into three groups: group A (hyperlipidemia + ANP + normal saline), group B ( hyperlipidemia + ANP + L-arg), and group C (hyperlipidemia + ANP + L-Name). ANP was induced by retrograde injection of 3.5% sodium taurocholate into the biliopancreatic duct. Each group was treated 30 min before and 2 h after ANP induction. At 6 h after ANP induction, serum amylase (Amyl), creatinine (Cr), urea nitrogen (BUN), NO, and pancreatic NO and endothelial nitric oxide synthetase (eNOS) were measured; pancreatic histopathology was detected by light microscopy; ultrastructure of glomerular podocytes was observed by election microscopy; and expression of nephrin in glomerular podocytes was examined by immunohistochemistry.
RESULTS: Serum Amyl, Cr and BUN in group B were significantly lower than those in groups A and C (Amyl: 4 219.8 ± 900.0, 6 643.2 ± 1 135.4 vs 2 434.4 ± 831.6; Cr: 15.8 ± 1.6, 22.4 ± 3.3 vs 9.9 ± 0.8; BUN: 135.9 ± 23.6, 206.4 ± 23.4 vs 103.2 ± 13.2; all P < 0.01). Pancreatic injury and changes in glomerular podocytes were milder in group B than in groups A and C. The levels of serum and pancreatic NO (59.46 ± 11.21, 44.84 ± 10.72 vs 78.88 ± 9.76; 5.23 ± 0.48, 4.39 ± 0.45 vs 6.18 ± 0.57; all P < 0.01) and pancreatic eNOS, and expression of nephrin in glomerular podocytes were significantly higher in group B than in groups A and C.
CONCLUSION: NO produced by eNOS can protect against pancreatic and renal injury in rats with ANP and hyperlipidemia.
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Abstract
Warm hepatic ischemia-reperfusion injury is a significant medical problem in many clinical conditions such as liver transplantation, hepatic surgery for tumor excision, trauma and hepatic failure after hemorrhagic shock. Partial or, mostly, total interruption of hepatic blood flow is often necessary when liver surgery is performed. This interruption of blood flow is termed "warm ischemia" and upon revascularization, when molecular oxygen is reintroduced, the organ undergoes a process called "reperfusion injury" that causes deterioration of organ function. Ischemia reperfusion results in cellular damage and tissue injury associated with a complex series of events. Pathophysiological mechanisms leading to tissue injury following ischemia-reperfusion will be discussed and therapies targeted to reduce liver damage will be summarized within this review.
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Affiliation(s)
- Serdar Dogan
- Department of Biochemistry, Akdeniz University School of Medicine, Antalya, Turkey
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21
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Balibrea JM, García-Martín MC, Cuesta-Sancho S, Olmedilla Y, Arias-Díaz J, Fernández-Sevilla E, Vara E, Balibrea JL. Tacrolimus modulates liver and pancreas nitric oxide synthetase and heme-oxygenase isoforms and cytokine production after endotoxemia. Nitric Oxide 2011; 24:113-22. [PMID: 21255669 DOI: 10.1016/j.niox.2011.01.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2010] [Revised: 12/08/2010] [Accepted: 01/10/2011] [Indexed: 12/16/2022]
Abstract
Cytoprotective effects of tacrolimus are due to its unspecific anti-inflammatory and anti-oxidant properties. Neither the exact mechanisms nor if there is any organ-specificity or dose-dependent response have not been yet elucidated. Our aim was to evaluate the effect of tacrolimus on oxidative stress and mediator production in liver and pancreatic tissue secondary to endotoxemia. Wistar rats were pretreated with intraperitoneal injection of tacrolimus (0.07, 0.15, and 0.3mg/kg) 24h before Escherichia coli LPS was administrated. Animals were sacrificed 24h after LPS administration and iNOS, eNOS, and nNOS and type 1 and 2 heme-oxygenase (HO) expression were measured. TNF-α and IL-1 tissue expression and plasmatic NO, CO, TNF-α, and IL-1 were also determined. LPS exposure increased iNOS expression in both organs, eNOS did not show variations and liver nNOS expression was significantly lower. Tacrolimus diminished both pancreas and liver iNOS and nNOS expression. Both liver and pancreatic eNOS expression augmented when tacrolimus was administrated. High doses of tacrolimus were correlated with ameliorated liver HO-1 plus HO-2 and pancreas HO-1 expression after LPS stimulation. Tacrolimus treatment diminished TNF-α but not IL-1 expression increase after LPS challenge in hepatic tissue. Pancreatic TNF-α and IL-1 values diminished partially when high doses were employed. Plasmatic NO, CO, TNF-α, and IL-1 concentrations increase after LPS challenge was diminished when highest doses of tacrolimus were given. In conclusion, tacrolimus exerts a protective effect on commonly observed harmful phenomena after LPS stimulation by modulating liver and pancreas oxidative enzyme expression and cytokine production.
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Affiliation(s)
- José M Balibrea
- Department of Surgery, Germans Trias i Pujol Hospital, Universitat Autònoma, Ctra Del Canyet s/n, 08916 Badalona, Barcelona, Spain.
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Klune JR, Tsung A. Molecular biology of liver ischemia/reperfusion injury: established mechanisms and recent advancements. Surg Clin North Am 2010; 90:665-77. [PMID: 20637940 DOI: 10.1016/j.suc.2010.04.003] [Citation(s) in RCA: 147] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Hepatic ischemia/reperfusion (I/R) injury occurs in a variety of clinical contexts, including transplantation, liver resection surgery, trauma, and hypovolemic shock. The mechanism of organ damage after I/R has been studied extensively and consists of complex interactions of multiple inflammatory pathways. The major contributors to I/R injury include production of reactive oxygen species, release of proinflammatory cytokines and chemokines, and activation of immune cells to promote inflammation and tissue damage. Recent research has focused on the mechanisms by which these immune responses are initially activated through signaling molecules and their cellular receptors. Thorough understanding of the pathophysiology of liver I/R may yield novel therapeutic strategies to reduce I/R injury and lead to improved clinical outcomes.
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Affiliation(s)
- John R Klune
- Department of Surgery, F675 UPMC Presbyterian Hospital, University of Pittsburgh Medical Center, 200 Lothrop Street, Pittsburgh, PA 15213, USA
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Ildefonso JÁ, Arias-Díaz J. Fisiopatología de la lesión hepática por isquemia-reperfusión. Cir Esp 2010; 87:202-9. [DOI: 10.1016/j.ciresp.2009.11.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2009] [Accepted: 11/10/2009] [Indexed: 12/18/2022]
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Hu M, Wang Z, Rao J, Cao Y, Jiang W, Zhang F, Li X, Wang X. Inhibition of inducible nitric oxide synthase worsens liver damage regardless of lipopolysaccharide treatment in small-for-size liver transplantation. Transpl Immunol 2010; 23:6-11. [PMID: 20206261 DOI: 10.1016/j.trim.2010.02.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2009] [Revised: 12/20/2009] [Accepted: 02/22/2010] [Indexed: 12/20/2022]
Abstract
OBJECTIVE In small-for-size liver transplantation, portal hypertension aggravates endotoxin from the gut which accelerates the activation of inducible nitric oxide synthase (iNOS). However, there is little knowledge as to the effects of iNOS inhibitors on small-for-size graft damage. Our study was designed to investigate the role of an iNOS inhibitor both with and without lipopolysaccharide (LPS) treatment in ischemia-reperfusion injury of small-for-size liver transplantation. METHODS Subjecting Sprague-Dawley rats to small-for-size grafts liver transplantation, we investigated the time course of changes in hepatic expression of iNOS and endothelial nitric oxide synthase (eNOS). Meantime, we also investigated the effects of iNOS inhibitor, both with and without LPS treatment, at 6h after reperfusion. RESULTS While iNOS mRNA expression reached a peak at 3h, the highest protein level occurred at 6h after reperfusion. Aminoguanidine (AG) significantly inhibited mRNA and protein expressions of iNOS, but not that of eNOS. However, LPS accelerated activation of iNOS, but suppressed the expression of eNOS. Meanwhile, compared with the untreated group, those treated with AG or LPS experienced worsened liver function and tissue damage, promoting neutrophil infiltration in the liver tissue. The difference between the LPS group and the LPS+AG group was found to be significant. In addition, AG and LPS treatments up-regulated the protein expression of ICAM-1 and NF-kappaB p65. CONCLUSION In a small-for-size model of rat liver transplantation, regardless of LPS treatment, the inhibitor of iNOS, AG, attenuated iNOS expression, but worsened liver function and tissue damage. The subsequent increased neutrophil infiltration in liver tissue may be associated with up-regulation of ICAM-1 and NF-kappaB expressions.
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Affiliation(s)
- MingZheng Hu
- Liver Transplantation Center, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, China
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25
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Kuriyama N, Isaji S, Hamada T, Kishiwada M, Ohsawa I, Usui M, Sakurai H, Tabata M, Hayashi T, Suzuki K. The cytoprotective effects of addition of activated protein C into preservation solution on small-for-size grafts in rats. Liver Transpl 2010; 16:1-11. [PMID: 20035525 DOI: 10.1002/lt.21923] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Small-for-size liver grafts are a serious obstacle for partial orthotopic liver transplantation. Activated protein C (APC), a potent anticoagulant serine protease, is known to have cell-protective properties due to its anti-inflammatory and antiapoptotic activities. This study was designed to examine the cytoprotective effects of a preservation solution containing APC on small-for-size liver grafts, with special attention paid to ischemia-reperfusion injury and shear stress in rats. APC exerted cytoprotective effects, as evidenced by (1) increased 7-day graft survival; (2) decreased initial portal pressure and improved hepatic microcirculation; (3) decreased levels of aminotransferase and improved histological features of hepatic ischemia-reperfusion injury; (4) suppressed infiltration of neutrophils and monocytes/macrophages; (5) reduced hepatic expression of tumor necrosis factor alpha and interleukin 6; (6) decreased serum levels of hyaluronic acid, which indicated attenuation of sinusoidal endothelial cell injury; (7) increased hepatic levels of nitric oxide via up-regulated hepatic endothelial nitric oxide synthesis expression together with down-regulated hepatic inducible nitric oxide synthase expression; (8) decreased hepatic levels of endothelin 1; and (9) reduced hepatocellular apoptosis by down-regulated caspase-8 and caspase-3 activities. These results suggest that a preservation solution containing APC is a potential novel and safe product for small-for-size liver transplantation, alleviating graft injury via anti-inflammatory and antiapoptotic effects and vasorelaxing conditions.
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Affiliation(s)
- Naohisa Kuriyama
- Department of Hepatobiliary Pancreatic Surgery, Mie University Graduate School of Medicine, Mie, Japan.
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Hamada T, Duarte S, Tsuchihashi S, Busuttil RW, Coito AJ. Inducible nitric oxide synthase deficiency impairs matrix metalloproteinase-9 activity and disrupts leukocyte migration in hepatic ischemia/reperfusion injury. THE AMERICAN JOURNAL OF PATHOLOGY 2009; 174:2265-77. [PMID: 19443702 DOI: 10.2353/ajpath.2009.080872] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Matrix metalloproteinase 9 (MMP-9) is a critical mediator of leukocyte migration in hepatic ischemia/reperfusion (I/R) injury. To test the relevance of inducible nitric oxide synthase (iNOS) expression on the regulation of MMP-9 activity in liver I/R injury, our experiments included both iNOS-deficient mice and mice treated with ONO-1714, a specific iNOS inhibitor. The inability of iNOS-deficient mice to generate iNOS-derived nitric oxide (NO) profoundly inhibited MMP-9 activity and depressed leukocyte migration in livers after I/R injury. While macrophages expressed both iNOS and MMP-9 in damaged wild-type livers, neutrophils expressed MMP-9 and were virtually negative for iNOS; however, exposure of isolated murine neutrophils and macrophages to exogenous NO increased MMP-9 activity in both cell types, suggesting that NO may activate MMP-9 in leukocytes by either autocrine or paracrine mechanisms. Furthermore, macrophage NO production through the induction of iNOS was capable of promoting neutrophil transmigration across fibronectin in a MMP-9-dependent manner. iNOS expression in liver I/R injury was also linked to liver apoptosis, which was reduced in the absence of MMP-9. These results suggest that MMP-9 activity induced by iNOS-derived NO may also lead to detachment of hepatocytes from the extracellular matrix and cell death, in addition to regulating leukocyte migration across extracellular matrix barriers. These data provide evidence for a novel mechanism by which MMP-9 can mediate iNOS-induced liver I/R injury.
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Affiliation(s)
- Takashi Hamada
- The Dumont-UCLA Transplant Center, 77-120 CHS, Box: 957054, Los Angeles, CA 90095-7054, USA
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Gandhi C, Zalawadia R, Balaraman R. Nebivolol reduces experimentally induced warm renal ischemia reperfusion injury in rats. Ren Fail 2009; 30:921-30. [PMID: 18925533 DOI: 10.1080/08860220802353900] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Ischemia/reperfusion injury, which is commonly seen in the field of renal surgery or transplantation, is a major cause of acute renal failure. The objective of the present study was to examine the role of nebivolol in modulating peroxynitrite species-induced inflammation and apoptosis after renal warm ischemia/reperfusion injury in rats. The present study was designed to investigate the effects of nebivolol on the renal warm ischemia/reperfusion injury in rats treated with the nitric oxide synthase inhibitor, N(omega)-nitro-L-arginine methyl ester. After right nephrectomy, nebivolol was administered for 15 days. On the 16(th) day, ischemia was induced in contra lateral kidney for 45 min, followed by reperfusion for 24 hr. Renal function, inflammation, and apoptosis were estimated at the end of 24 hr reperfusion. Nebivolol improved the renal dysfunction and reduced inflammation and apoptosis after renal ischemia/reperfusion injury. In conclusion, nebivolol shows potent anti-apoptotic and anti-inflammatory properties due to its NO-releasing property. These findings may have major implications in the treatment of human ischemic acute renal failure.
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Affiliation(s)
- Chintan Gandhi
- Pharmacy Department, Faculty of Technology and Engineering, M. S. University of Baroda, Kalabhavan, Baroda, Gujarat, India
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28
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[Microcirculatory disorders in ischemic/reperfusion hepatic injury]. VOJNOSANIT PREGL 2009; 65:913-8. [PMID: 19160986 DOI: 10.2298/vsp0812913r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Wang Y, Tao Y, Lin Y, Liang L, Wu Y, Qu H, Liang T, Cheng Y. Integrated analysis of serum and liver metabonome in liver transplanted rats by gas chromatography coupled with mass spectrometry. Anal Chim Acta 2008; 633:65-70. [PMID: 19110117 DOI: 10.1016/j.aca.2008.11.034] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2008] [Revised: 11/12/2008] [Accepted: 11/12/2008] [Indexed: 11/28/2022]
Abstract
In this paper, we present a metabonomic method for the investigation of abnormal metabolic process in both serum and liver tissue of liver transplanted rats. Syngeneic transplantation was performed on male Lewis rats. The serum and grafted liver on day 1, 3, and 7 post-transplant were collected to analyze endogenous metabolites using gas chromatography coupled with mass spectrometry (GC-MS). The method was validated with acceptable linearity, precision, and repeatability. Thirty-four metabolites in serum and 29 metabolites in liver were identified. Results of correlation analysis illustrated metabolites with similar function exhibited similar variations in liver and serum. The data processed by principle component analysis (PCA) showed time-dependent biochemical variations. As a consequence, the present study may offer specific putative pathways in the pathophysiological mechanism of orthotopic liver transplantation.
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Affiliation(s)
- Yi Wang
- Pharmaceutical Informatics Institute, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, PR China
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30
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Wælgaard L, Thorgersen EB, Line PD, Foss A, Mollnes TE, Tønnessen TI. Microdialysis Monitoring of Liver Grafts by Metabolic Parameters, Cytokine Production, and Complement Activation. Transplantation 2008; 86:1096-103. [DOI: 10.1097/tp.0b013e31818775ca] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ishizaki M, Kaibori M, Uchida Y, Hijikawa T, Tanaka H, Ozaki T, Tokuhara K, Matsui K, Kwon AH, Kamiyama Y, Nishizawa M, Okumura T. PROTECTIVE EFFECT OF FR183998, A Na+/H+ EXCHANGER INHIBITOR, AND ITS INHIBITION OF iNOS INDUCTION IN HEPATIC ISCHEMIA-REPERFUSION INJURY IN RATS. Shock 2008; 30:311-7. [DOI: 10.1097/shk.0b013e318164ef14] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Vardanian AJ, Busuttil RW, Kupiec-Weglinski JW. Molecular mediators of liver ischemia and reperfusion injury: a brief review. Mol Med 2008; 14:337-45. [PMID: 18292799 DOI: 10.2119/2007-00134.vardanian] [Citation(s) in RCA: 122] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2007] [Accepted: 02/08/2008] [Indexed: 12/20/2022] Open
Abstract
Ischemia and reperfusion injury is a dynamic process that involves multiple organ systems in various clinical states including transplantation, trauma, and surgery. Research into this field has identified key molecular and signaling players that mediate, modulate, or augment cellular, tissue, and organ injury during this disease process. Further elucidation of the molecular mechanisms should provide the rationale to identify much-needed novel therapeutic options to prevent or ameliorate organ damage due to ischemia and reperfusion in clinics.
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Affiliation(s)
- Andrew J Vardanian
- The Dumont UCLA Transplantation Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California 90095, United States of America
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Sehirli O, Ozel Y, Dulundu E, Topaloglu U, Ercan F, Sener G. Grape seed extract treatment reduces hepatic ischemia-reperfusion injury in rats. Phytother Res 2008; 22:43-8. [PMID: 18165941 DOI: 10.1002/ptr.2256] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
This study was designed to determine the possible protective effect of grape seed extract (GSE), a widely used antioxidant dietary supplement, on hepatic ischemia/reperfusion (I/R) injury. Wistar albino rats were subjected to 45 min of hepatic ischemia, followed by a 60 min reperfusion period. GSE was administered in a dose of 50 mg/kg/day orally for 15 days before I/R injury and repeated before the reperfusion period. Liver samples were taken for histological examination or determination of hepatic malondialdehyde (MDA), glutathione (GSH) and myeloperoxidase (MPO) activity. Serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels were determined to assess liver functions. Lactate dehydrogenase (LDH) and cytokines (TNF-alpha and IL-1 beta) were also assayed in serum samples for the evaluation of generalized tissue damage. Ischemia/reperfusion caused a significant decrease in hepatic GSH, and significant increases in MDA level, and MPO activity. Serum AST and ALT levels, as well as LDH activity and plasma TNF-alpha and IL-1beta levels were also elevated in the I/R group. Treatment with GSE reversed all these biochemical parameters as well as histological alterations induced by I/R. In conclusion, GSE reduced I/R-induced organ injury through its ability to balance the oxidant-antioxidant status, to inhibit neutrophil infiltration and to regulate the release of inflammatory mediators.
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Affiliation(s)
- Ozer Sehirli
- Marmara University, School of Pharmacy, Department of Pharmacology, Istanbul, Turkey
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Prevention of hepatic ischemia/reperfusion injury by prolonged delivery of nitric oxide to the circulating blood in mice. Transplantation 2008; 85:264-9. [PMID: 18212632 DOI: 10.1097/tp.0b013e31815e902b] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND To protect hepatocytes from ischemia/reperfusion injury in mice, prolonged delivery of nitric oxide (NO) to the liver was performed by a bolus intravenous injection of polyethylene glycol (PEG)-conjugated bovine serum albumin (BSA) with about 10 NO molecules attached via an S-nitrosothiol linkage (PEG-poly SNO-BSA). METHODS A hepatic ischemia/reperfusion injury was induced in mice by occluding the portal vein and the hepatic artery for 15 min followed by 6 hours of reperfusion. Each NO donor was injected into the tail vein just before the initiation of the reperfusion at a dose of 2 micromol NO/kg. RESULTS The ischemia followed by reperfusion resulted in a striking increase in plasma alanine aminotransferase and aspartate aminotransferase activities. S-nitroso-N-acetyl penicillamine and NO-BSA, two classical S-nitrosothiols, had no statistically significant effect in preventing elevation of the markers. In marked contrast, PEG-poly SNO-BSA significantly (P<0.01) suppressed it. In addition, PEG-poly SNO-BSA significantly (P<0.01) reduced the number of neutrophils infiltrating into the liver and prevented the excessive production of NO from inducible NO synthase in the liver. CONCLUSIONS These results indicate that PEG-poly SNO-BSA can be used to prevent hepatic ischemia/reperfusion injury.
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35
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Uchida Y, Kaibori M, Hijikawa T, Ishizaki M, Ozaki T, Tanaka H, Matsui K, Tokuhara K, Kwon AH, Kamiyama Y, Okumura T. Protective effect of neutrophil elastase inhibitor (FR136706) in lethal acute liver failure induced by D-galactosamine and lipopolysaccharide in rats. J Surg Res 2007; 145:57-65. [PMID: 17936791 DOI: 10.1016/j.jss.2007.04.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2006] [Revised: 03/13/2007] [Accepted: 04/01/2007] [Indexed: 12/11/2022]
Abstract
BACKGROUND/AIMS It has been reported that liver dysfunction with ischemia-reperfusion is improved through selective inhibition of neutrophil elastase (NE) by NE inhibitor. This study was designed to investigate whether NE inhibitor has protective effect in lethal acute liver failure. MATERIALS AND METHODS Rats were treated with D-galactosamine plus lipopolysaccharide (GalN/LPS) to induce acute liver failure. NE inhibitor (FR136706) was administered intravenously before GalN/LPS injection. RESULTS NE inhibitor increased the survival rate to approximately 80% compared with less than 10% in GalN/LPS-treated rats. NE inhibitor prevented GalN/LPS-induced increase of enzymes and total bilirubin in serum, which are related to liver injury. Histopathological analysis revealed that NE inhibitor decreased the incidence of hepatic apoptosis and neutrophil infiltration in the liver. NE inhibitor inhibited the increased concentration of proinflammatory cytokines (tumor necrosis factor-alpha, interleukin-6 and interferon-gamma), and chemokines (CINC-1 and MIP-2) in serum or liver caused by GalN/LPS, and enhanced anti-inflammatory cytokine, interleukin-10 concentration. NE inhibitor prevented the activation of the transcription factor, nuclear factor-kappa B, induced by GalN/LPS. NE inhibitor also reduced the induction of inducible nitric oxide synthase mRNA and its protein in GalN/LPS-treated liver, and resulted in a decrease in nitric oxide production. CONCLUSIONS These results indicate that NE inhibitor, FR136706, inhibits the induction of a variety of inflammatory mediators such as cytokines, chemokines, and nitric oxide, in part through the inhibition of nuclear factor-kappa B activation, resulting in the prevention of fulminant liver failure.
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Affiliation(s)
- Yoichiro Uchida
- Department of Surgery, Kansai Medical University, Osaka, Japan
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Chimalakonda AP, Mehvar R. Effects of methylprednisolone and its liver-targeted dextran prodrug on ischemia-reperfusion injury in a rat liver transplantation model. Pharm Res 2007; 24:2231-8. [PMID: 17922174 DOI: 10.1007/s11095-007-9414-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2007] [Accepted: 07/16/2007] [Indexed: 01/12/2023]
Abstract
PURPOSE To evaluate the effectiveness of a liver-targeted dextran prodrug (DMP) of methylprednisolone (MP) in cold preservation-warm reperfusion injury associated with liver transplantation. METHODS The effects of donor pretreatment with single 5 mg/kg doses of MP or DMP on ischemia-reperfusion damage to the liver were studied after 8 or 24 h of cold preservation in both isolated perfused rat liver (IPRL) and syngeneic orthotopic rat liver transplantation (OLT) models. RESULTS In IPRL studies, donor pretreatment with DMP, and to a lesser degree MP, significantly improved the uptake of hyaluronic acid (HA), a marker of endothelial cell function, following 8 h of cold preservation. However, neither pretreatment was protective after 24 h of preservation. In the OLT model using 24-h-preserved livers, the seven-day survival of untreated grafts was 50%. DMP pretreatment of donors significantly improved graft survival to 100%, whereas MP pretreatment was ineffective. Additionally, only DMP significantly increased the blood glucose concentrations and decreased the plasma concentrations of tumor necrosis factor-alpha after OLT. Other measured markers of liver injury were not affected by either pretreatment. CONCLUSIONS Selective delivery of methylprednisolone to the liver as a donor pretreatment strategy improves 24-h preserved graft survival in the OLT model.
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Affiliation(s)
- Anjaneya P Chimalakonda
- School of Pharmacy, Texas Tech University Health Sciences Center, 1300 S. Coulter, Amarillo, Texas 79106, USA
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Dulundu E, Ozel Y, Topaloglu U, Sehirli O, Ercan F, Gedik N, Sener G. Alpha-lipoic acid protects against hepatic ischemia-reperfusion injury in rats. Pharmacology 2007; 79:163-70. [PMID: 17259747 DOI: 10.1159/000098953] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2006] [Accepted: 10/17/2006] [Indexed: 01/26/2023]
Abstract
BACKGROUND AND AIM To evaluate the protective effect of alpha-lipoic acid in reducing oxidative damage after severe hepatic ischemia/reperfusion (IR) injury. METHODS Wistar albino rats were subjected to 45 min of hepatic ischemia, followed by 60 min reperfusion period. Lipoic acid (100 mg/kg i.p.) was administered 15 min prior to ischemia and immediately before reperfusion period. At the end of the reperfusion period aspartate aminotransferase (AST), alanine aminotransferase (ALT), lactate dehydrogenase (LDH) activity, and cytokine, TNF-alpha and IL-1beta levels were determined in serum samples. Malondialdehyde (MDA), and glutathione (GSH) levels and myeloperoxidase (MPO) activity were determined in the liver tissue samples while formation of reactive oxygen species was monitored by using chemiluminescence (CL) technique with luminol and lucigenin probes. Tissues were also analyzed histologically. RESULTS Serum ALT, AST, and LDH activities and TNF-alpha and IL-1beta levels were elevated in the I/R group, while this increase was significantly lower in the group of animals treated concomitantly with lipoic acid. Hepatic GSH levels, significantly depressed by I/R, were elevated back to control levels in lipoic acid-treated I/R group. Furthermore, increases in tissue luminol and lucigenin CL, MDA levels and MPO activity due to I/R injury were reduced back to control levels with lipoic acid treatment. CONCLUSION Since lipoic acid administration alleviated the I/R-induced liver injury and improved the hepatic structure and function, it seems likely that lipoic acid with its antioxidant and oxidant-scavenging properties may be of potential therapeutic value in protecting the liver against oxidative injury due to ischemia-reperfusion.
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Affiliation(s)
- Ender Dulundu
- Department of 5th Surgery, Haydarpasa Numune Educational and Research Hospital, Istanbul, Turkey
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