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Lu Z, Feng L, Jiang W, Wu P, Liu Y, Jiang J, Kuang S, Tang L, Li S, Zhong C, Zhou X. Mannan oligosaccharides alleviate oxidative injury in the head kidney and spleen in grass carp (Ctenopharyngodon idella) via the Nrf2 signaling pathway after Aeromonas hydrophila infection. J Anim Sci Biotechnol 2023; 14:58. [PMID: 37060042 PMCID: PMC10105433 DOI: 10.1186/s40104-023-00844-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 01/31/2023] [Indexed: 04/16/2023] Open
Abstract
BACKGROUND Mannan oligosaccharides (MOS) are recommended as aquaculture additives owing to their excellent antioxidant properties. In the present study, we examined the effects of dietary MOS on the head kidney and spleen of grass carp (Ctenopharyngodon idella) with Aeromonas hydrophila infection. METHODS A total of 540 grass carp were used for the study. They were administered six gradient dosages of the MOS diet (0, 200, 400, 600, 800, and 1,000 mg/kg) for 60 d. Subsequently, we performed a 14-day Aeromonas hydrophila challenge experiment. The antioxidant capacity of the head kidney and spleen were examined using spectrophotometry, DNA fragmentation, qRT-PCR, and Western blotting. RESULTS After infection with Aeromonas hydrophila, 400-600 mg/kg MOS supplementation decreased the levels of reactive oxygen species, protein carbonyl, and malonaldehyde and increased the levels of anti-superoxide anion, anti-hydroxyl radical, and glutathione in the head kidney and spleen of grass carp. The activities of copper-zinc superoxide dismutase, manganese superoxide dismutase, catalase, glutathione S-transferase, glutathione reductase, and glutathione peroxidase were also enhanced by supplementation with 400-600 mg/kg MOS. Furthermore, the expression of most antioxidant enzymes and their corresponding genes increased significantly with supplementation of 200-800 mg/kg MOS. mRNA and protein levels of nuclear factor erythroid 2-related factor 2 also increased following supplementation with 400-600 mg/kg MOS. In addition, supplementation with 400-600 mg/kg MOS reduced excessive apoptosis by inhibiting the death receptor pathway and mitochondrial pathway processes. CONCLUSIONS Based on the quadratic regression analysis of the above biomarkers (reactive oxygen species, malondialdehyde, and protein carbonyl) of oxidative damage in the head kidney and spleen of on-growing grass carp, the recommended MOS supplementation is 575.21, 557.58, 531.86, 597.35, 570.16, and 553.80 mg/kg, respectively. Collectively, MOS supplementation could alleviate oxidative injury in the head kidney and spleen of grass carp infected with Aeromonas hydrophila.
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Affiliation(s)
- Zhiyuan Lu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, China
| | - Lin Feng
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, China
- Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, China
| | - Weidan Jiang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, China
- Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, China
| | - Pei Wu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, China
- Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yang Liu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, China
- Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, China
| | - Jun Jiang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, China
- Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, China
| | - Shengyao Kuang
- Sichuan Animal Science Academy, Sichuan Animtech Feed Co. Ltd, Chengdu, 610066, China
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Animal Nutrition Institute, Sichuan Academy of Animal Science, Chengdu, 610066, China
| | - Ling Tang
- Sichuan Animal Science Academy, Sichuan Animtech Feed Co. Ltd, Chengdu, 610066, China
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Animal Nutrition Institute, Sichuan Academy of Animal Science, Chengdu, 610066, China
| | - Shuwei Li
- Sichuan Animal Science Academy, Sichuan Animtech Feed Co. Ltd, Chengdu, 610066, China
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Animal Nutrition Institute, Sichuan Academy of Animal Science, Chengdu, 610066, China
| | - Chengbo Zhong
- Sichuan Animal Science Academy, Sichuan Animtech Feed Co. Ltd, Chengdu, 610066, China
- Animal Breeding and Genetics Key Laboratory of Sichuan Province, Animal Nutrition Institute, Sichuan Academy of Animal Science, Chengdu, 610066, China
| | - Xiaoqiu Zhou
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, China.
- Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China.
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, China.
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Wang Z, Wang W, Zhu C, Gao X, Chu W. Evaluation of Antioxidative and Neuroprotective Activities of Total Flavonoids From Sea Buckthorn (Hippophae rhamnoides L.). Front Nutr 2022; 9:861097. [PMID: 35799585 PMCID: PMC9253677 DOI: 10.3389/fnut.2022.861097] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 06/06/2022] [Indexed: 11/18/2022] Open
Abstract
The aim of this study was to investigate the antioxidative and neuroprotective activities of total flavonoids from sea buckthorn (Hippophae rhamnoides L.) (TFH). Results indicated that TFH possessed DPPH radicals, hydroxyl radicals and superoxide anions scavenging activities. The neuroprotective potential was assessed with acetylcholinesterase (AChE) and monoamine oxidase A (MAO-A). The inhibition rates of AChE and MAO-A by 50 μg/ml TFH were 75.85 and 51.22%, respectively. The in vivo antioxidative and neuroprotective potential of TFH were explored in Caenorhabditis elegans. In the longevity assay, TFH (50 μg/ml) significantly increased the lifespan of wild-type C. elegans (29.40%). In the hydrogen peroxide-induced oxidative stress challenge, the antioxidant capacity of TFH-treated wild-type C. elegans was significantly enhanced. The C. elegans mutant strain CL4176 was used to study the neuroprotective effect of TFH in vivo. Results showed that TFH significantly delayed paralysis in C. elegans CL4176. Our study suggested total flavonoids from sea buckthorn (Hippophae rhamnoides L.) had the potential as an antioxidative and neuroprotective agent to extend aging and treat neurodegenerative diseases.
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Talebi A, Emami F, Biranvand R, Moosavi Z, Ramtin K, Sadeghi S, Baghaei K, Lak Z, Nematbakhsh M. Protective Role of Angiotensin II Type 1 Receptor Blocker on Short Time Effect of Oleic Acid Induced Lung and Kidney Injury. Int J Prev Med 2021; 12:4. [PMID: 34084301 PMCID: PMC8106270 DOI: 10.4103/ijpvm.ijpvm_323_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Accepted: 04/02/2019] [Indexed: 01/13/2023] Open
Abstract
Backgrounds: Acute respiratory distress syndrome (ARDS) causes high mortality rate in clinic, and the pathogenesis of this syndrome may interact with renin angiotensin system (RAS) components. The main objective of this study was to determine the protective role of AT1R antagonist (losartan) on oleic acid (OA) induced ARDS and kidney injury. Methods: The animal model of ARDS was performed by intravenous administration of 250 μl/kg oleic acid (OA). Male and female rats were subjected to received intravenously vehicle (saline, groups 1 and 4), OA (groups 2 and 5), or losartan (10 mg/kg) plus OA (groups 3 and 6), and six hour later, the measurements were performed. Results: Co-treatment of OA and losartan increased the serum levels of blood urea nitrogen significantly (P < 0.05) and creatinine insignificantly in both gender. However, the OA induced kidney damage was decreased by losartan significantly in male (P < 0.05) and insignificantly in female rats. In addition, co-treatment of OA and losartan decreased lung water content significantly in male rats (P < 0.05). Based on tissue staining, no significant difference in lung tissue damages were observed between the groups, however some exudate were observed in lung male rats treated with OA alone which were abolished by losartan. Conclusions: Losartan may protect the kidney and lung against OA induced tissue injury in male rats. This protective action is not certain in female rats.
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Affiliation(s)
- Ardeshir Talebi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Clinical Pathology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fatemeh Emami
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Reza Biranvand
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Student Research Committee, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Zahra Moosavi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Student Research Committee, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Kimia Ramtin
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Student Research Committee, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Soheil Sadeghi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Student Research Committee, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Kimia Baghaei
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Student Research Committee, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Zahra Lak
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mehdi Nematbakhsh
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Physiology, Isfahan University of Medical Sciences, Isfahan, Iran.,IsfahanMN Institute of Basic and Applied Sciences Research, Isfahan, Iran
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Erol N, Saglam L, Saglam YS, Erol HS, Altun S, Aktas MS, Halici MB. The Protection Potential of Antioxidant Vitamins Against Acute Respiratory Distress Syndrome: a Rat Trial. Inflammation 2020; 42:1585-1594. [PMID: 31081527 DOI: 10.1007/s10753-019-01020-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Acute respiratory distress syndrome (ARDS) is a fatal disease that includes inflammation formed by septic and non-septic causes. Reactive oxygen radicals (ROS) play a key role in ARDS pathophysiology and constitute the base of damage process. Antioxidant vitamins are used for inhibiting hazardous effects of radicals. Therefore, effects of antioxidant vitamins such as α-lipoic acid (ALA), vitamin E (VITE), and C (VITC) were investigated on oleic acid (OA)-induced ARDS rat model. Furthermore, high and low dose of methylprednisolone (HDMP, LDMP) was used for comparing effects of the vitamins. In this study, 42 male rats were divided to seven groups named control, OA, ALA, VITE, VITC, LDMP, and HDMP. OA was intravenously administered to all groups except control group and other compounds were orally administered (ALA, VITE, and VITC: 100 mg/kg, LDMP: 5 mg/kg, HDMP: 50 mg/kg) after OA injections. OA increased MDA level in lung tissue and TNF-α and IL-1β cytokine levels in serum. ALA, VITE, VITC, and both dose of MP significantly decreased the cytokine levels. Although OA reduced SOD, CAT, and GSH levels in lung tissue, the vitamins and LDMP markedly enhanced the levels except for HDMP. Furthermore, OA showed thickening in bronchi and alveolar septum, hyperemia in vessels, and inflammatory cell infiltrations in lung tissue histopathological examinations. Antioxidant vitamins may be useful for premedication of ARDS and similar disorders. However, methylprednisolone was not found sufficient for being a therapeutic agent for ARDS.
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Affiliation(s)
- Nazli Erol
- Kastamonu State Hospital, Department of Chest Disease, 37200, Kastamonu, Turkey
| | - Leyla Saglam
- Faculty of Medicine, Department of Chest Disease, Ataturk University, 25100, Erzurum, Turkey
| | - Yavuz Selim Saglam
- Faculty of Veterinary Medicine, Department of Pathology, Ataturk University, 25100, Erzurum, Turkey
| | - Huseyin Serkan Erol
- Faculty of Veterinary Medicine, Department of Biochemistry, Kastamonu University, 37200, Kastamonu, Turkey.
| | - Serdar Altun
- Faculty of Veterinary Medicine, Department of Pathology, Ataturk University, 25100, Erzurum, Turkey
| | - Mustafa Sinan Aktas
- Faculty of Veterinary Medicine, Department of Internal Medicine, Ataturk University, 25100, Erzurum, Turkey
| | - Mesut Bunyami Halici
- Faculty of Veterinary Medicine, Department of Biochemistry, Ataturk University, 25100, Erzurum, Turkey
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Muñoz-Rugeles L, Galano A, Alvarez-Idaboy JR. Chemical repair mechanisms of damaged tyrosyl and tryptophanyl residues in proteins by the superoxide radical anion. NEW J CHEM 2020. [DOI: 10.1039/c9nj04998c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Even though reaction of the superoxide anion radical/hydroperoxide radical could lead to oxidation of biomolecules, it can repair oxidized tyrosyl and tryptophanyl residues in proteins at diffusion-controlled rates.
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Affiliation(s)
- Leonardo Muñoz-Rugeles
- Facultad de Química
- Departamento de Física y Química Teórica
- Universidad Nacional Autónoma de México
- México DF 04510
- Mexico
| | - Annia Galano
- Departamento de Química
- Universidad Autónoma Metropolitana-Iztapalapa
- San Rafael Atlixco 186
- Col. Vicentina. Iztapalapa. C. P. 09340
- México DF
| | - Juan Raúl Alvarez-Idaboy
- Facultad de Química
- Departamento de Física y Química Teórica
- Universidad Nacional Autónoma de México
- México DF 04510
- Mexico
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Lynn H, Sun X, Casanova N, Gonzales-Garay M, Bime C, Garcia JGN. Genomic and Genetic Approaches to Deciphering Acute Respiratory Distress Syndrome Risk and Mortality. Antioxid Redox Signal 2019; 31:1027-1052. [PMID: 31016989 PMCID: PMC6939590 DOI: 10.1089/ars.2018.7701] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Significance: Acute respiratory distress syndrome (ARDS) is a severe, highly heterogeneous critical illness with staggering mortality that is influenced by environmental factors, such as mechanical ventilation, and genetic factors. Significant unmet needs in ARDS are addressing the paucity of validated predictive biomarkers for ARDS risk and susceptibility that hamper the conduct of successful clinical trials in ARDS and the complete absence of novel disease-modifying therapeutic strategies. Recent Advances: The current ARDS definition relies on clinical characteristics that fail to capture the diversity of disease pathology, severity, and mortality risk. We undertook a comprehensive survey of the available ARDS literature to identify genes and genetic variants (candidate gene and limited genome-wide association study approaches) implicated in susceptibility to developing ARDS in hopes of uncovering novel biomarkers for ARDS risk and mortality and potentially novel therapeutic targets in ARDS. We further attempted to address the well-known health disparities that exist in susceptibility to and mortality from ARDS. Critical Issues: Bioinformatic analyses identified 201 ARDS candidate genes with pathway analysis indicating a strong predominance in key evolutionarily conserved inflammatory pathways, including reactive oxygen species, innate immunity-related inflammation, and endothelial vascular signaling pathways. Future Directions: Future studies employing a system biology approach that combines clinical characteristics, genomics, transcriptomics, and proteomics may allow for a better definition of biologically relevant pathways and genotype-phenotype connections and result in improved strategies for the sub-phenotyping of diverse ARDS patients via molecular signatures. These efforts should facilitate the potential for successful clinical trials in ARDS and yield a better fundamental understanding of ARDS pathobiology.
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Affiliation(s)
- Heather Lynn
- Department of Physiological Sciences and University of Arizona, Tucson, Arizona.,Department of Health Sciences, University of Arizona, Tucson, Arizona
| | - Xiaoguang Sun
- Department of Health Sciences, University of Arizona, Tucson, Arizona
| | - Nancy Casanova
- Department of Health Sciences, University of Arizona, Tucson, Arizona
| | | | - Christian Bime
- Department of Health Sciences, University of Arizona, Tucson, Arizona
| | - Joe G N Garcia
- Department of Health Sciences, University of Arizona, Tucson, Arizona
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3',8″-Dimerization Enhances the Antioxidant Capacity of Flavonoids: Evidence from Acacetin and Isoginkgetin. Molecules 2019; 24:molecules24112039. [PMID: 31142008 PMCID: PMC6600363 DOI: 10.3390/molecules24112039] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 05/24/2019] [Accepted: 05/26/2019] [Indexed: 01/03/2023] Open
Abstract
To probe the effect of 3',8″-dimerization on antioxidant flavonoids, acacetin and its 3',8″-dimer isoginkgetin were comparatively analyzed using three antioxidant assays, namely, the ·O2- scavenging assay, the Cu2+ reducing assay, and the 2,2'-azino bis(3-ethylbenzothiazolin-6-sulfonic acid) radical scavenging assay. In these assays, acacetin had consistently higher IC50 values than isoginkgetin. Subsequently, the acacetin was incubated with 4-methoxy-2,2,6,6-tetramethylpiperidine-1-oxy radicals (4-methoxy-TEMPO) and then analyzed by ultra-performance liquid chromatography coupled with electrospray ionization quadrupole time-of-flight tandem mass spectrometry (UHPLC-ESI-Q-TOF-MS) technology. The results of the UHPLC-ESI-Q-TOF-MS analysis suggested the presence of a dimer with m/z 565, 550, 413, 389, 374, 345, 330, and 283 peaks. By comparison, standard isoginkgetin yielded peaks at m/z 565, 533, 518, 489, 401, 389, 374, and 151 in the mass spectra. Based on these experimental data, MS interpretation, and the relevant literature, we concluded that isoginkgetin had higher electron transfer potential than its monomer because of the 3',8″-dimerization. Additionally, acacetin can produce a dimer during its antioxidant process; however, the dimer is not isoginkgetin.
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Chen H, Ding Y, Chen W, Feng Y, Shi G. Glibenclamide alleviates inflammation in oleic acid model of acute lung injury through NLRP3 inflammasome signaling pathway. DRUG DESIGN DEVELOPMENT AND THERAPY 2019; 13:1545-1554. [PMID: 31123394 PMCID: PMC6511253 DOI: 10.2147/dddt.s196040] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 04/02/2019] [Indexed: 12/31/2022]
Abstract
Background: Pulmonary fat embolism (PFE) is one of the important causes of acute lung injury (ALI), but its pathogenesis is unclear. In recent years, it has been found that the NLRP3 inflammasome is closely related to inflammatory response. However, there are no reports about the involvement of NLRP3 in PFE- associated ALI. Glibenclamide is a kind of hypoglycaemic drug with anti-inflammatory effect. It has been reported to have the anti-inflammatory effect related to inhibiting NLRP3. Objective: To determine whether NLRP3 inflammasome was involved in ALI induced by PFE or whether glibenclamide had therapeutic effects on such lung injury, we designed this experiment. Materials and methods: The rat model of intravenous injection of oleic acid (OA) was used to simulate PFE. Rats were divided into three groups: control, OA and glibenclamide treatment group. Blood free fatty acid (FFA) concentration was determined by ACS-ACOD. Histopathological examinations were taken to assess the severity of lung injury. The expression of NLRP3 pathway and its downstream products were analyzed by IHC, WB, qPCR and ELISA. Results: Four hours after intravenous OA injection, the typical pathological manifestations of ALI accompanied by elevated levels of plasma FFAs were found. The activity of NLRP3 inflammasomes increased in OA group, too. Pretreatment with glibenclamide partly inhibited the increase in NLRP3, caspase-1 and IL-1β expression induced by OA, simultaneously attenuated the lung injury. But it has little effect on the expression of Toll-like receptor 4 (TLR4) expression in this experiment. Conclusion: NLRP3 inflammasome, one of the main components of innate immune response, involved in ALI induced by OA. Glibenclamide can alleviate this kind of ALI by inhibiting rather the NLRP3/caspase-1/IL-1β signaling pathway than the levels of FFAs or TLR4 pathway.
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Affiliation(s)
- Hong Chen
- Department of Respiration and Critical Care Disease, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 20025, People's Republic of China.,Institute of Respiratory Diseases, School of Medicine, Shanghai Jiaotong University, Shanghai 20025, People's Republic of China
| | - Yongjie Ding
- Department of Respiration and Critical Care Disease, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 20025, People's Republic of China.,Institute of Respiratory Diseases, School of Medicine, Shanghai Jiaotong University, Shanghai 20025, People's Republic of China
| | - Wei Chen
- Department of Respiration and Critical Care Disease, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 20025, People's Republic of China.,Institute of Respiratory Diseases, School of Medicine, Shanghai Jiaotong University, Shanghai 20025, People's Republic of China
| | - Yun Feng
- Department of Respiration and Critical Care Disease, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 20025, People's Republic of China.,Institute of Respiratory Diseases, School of Medicine, Shanghai Jiaotong University, Shanghai 20025, People's Republic of China
| | - Guochao Shi
- Department of Respiration and Critical Care Disease, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 20025, People's Republic of China.,Institute of Respiratory Diseases, School of Medicine, Shanghai Jiaotong University, Shanghai 20025, People's Republic of China
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Kumar S, Gupta E, Kaushik S, Kumar Srivastava V, Mehta SK, Jyoti A. Evaluation of oxidative stress and antioxidant status: Correlation with the severity of sepsis. Scand J Immunol 2018; 87:e12653. [PMID: 29484685 DOI: 10.1111/sji.12653] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 02/19/2018] [Indexed: 12/13/2022]
Abstract
Sepsis is a condition caused by infection followed by unregulated inflammatory response which may lead to the organ dysfunction. During such condition, over-production of oxidants is one of the factors which contribute cellular toxicity and ultimately organ failure and mortality. Antioxidants having free radicals scavenging activity exert protective role in various diseases. This study has been designed to evaluate the levels of oxidative and antioxidative activity in sepsis patients and their correlation with the severity of the sepsis. A total of 100 sepsis patients and 50 healthy controls subjects were enrolled in this study from the period October 2016 to June 2017. The investigation included measurements of oxidative enzyme, myeloperoxidase (MPO), antioxidant enzymes including superoxide dismutase activity (SOD) and catalase activity (CAT) and cytokines (TNF-α, IL-8 and IFN-γ). Furthermore, the level of these activities was correlated with severity of sepsis. Augmented levels of oxidants were found in sepsis as demonstrated by DMPO nitrone adduct formation and plasma MPO level activity (1.37 ± 0.51 in sepsis vs 0.405 ± 0.16 in control subjects). Cytokines were also found to be increased in sepsis patients. However, plasma SOD and CAT activities were significantly attenuated (P < .001) in the sepsis patients compared with controls subjects. Moreover, inverse relation between antioxidant enzymes (SOD and CAT) and organ failure assessment (SOFA), physiological score (APACHE II), organ toxicity specific markers have been observed as demonstrated by Pearson's correlation coefficient. This study suggests that imbalance between oxidant and antioxidant plays key role in the severity of sepsis.
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Affiliation(s)
- S Kumar
- Amity Institute of Biotechnology, Amity University Rajasthan, Jaipur, India
| | - E Gupta
- Amity Institute of Biotechnology, Amity University Rajasthan, Jaipur, India
| | - S Kaushik
- Amity Institute of Biotechnology, Amity University Rajasthan, Jaipur, India
| | - V Kumar Srivastava
- Amity Institute of Biotechnology, Amity University Rajasthan, Jaipur, India
| | - S K Mehta
- Department of General Medicine, SMS Medical College & Attached Hospitals, Jaipur, India
| | - A Jyoti
- Amity Institute of Biotechnology, Amity University Rajasthan, Jaipur, India
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Zhao Y, Ma L, Wang R, Chen T, Liu X, Jin F. 3,5,4'-Tri-O-acetylresveratrol attenuates seawater inhalation-induced acute respiratory distress syndrome via thioredoxin 1 pathway. Int J Mol Med 2018; 41:3493-3500. [PMID: 29512754 DOI: 10.3892/ijmm.2018.3528] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 01/12/2018] [Indexed: 11/06/2022] Open
Abstract
The protecting effects of 3,5,4'-tri-O-acetylresveratrol (AC-Res) on seawater inhalation-induced acute respiratory distress syndrome (ARDS) by interfering with the activation of thioredoxin-1 (Trx-1) pathway were evaluated. Seawater inhalation-induced ARDS was assessed by magnitude of pulmonary edema and lung inflammation. Oxidative stress was tested by T-SOD activity and MDA content in lungs and cells. Besides, Trx-1, nuclear factor erythroid 2-related factor 2 (Nrf2) and Txnip expression were measured to explore how seawater induced oxidative stress and the mechanism by which AC-Res attenuated seawater inhalation-induced ARDS. The results showed that seawater inhalation increased wet-to-dry (W/D) ratios of lung tissues, enhanced secretion of tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β), and disturbed the oxidative distress balance probably through interfering the activity of Trx-1 pathway. While treatment of AC-Res in vivo and Res in vitro reduced W/D ratios of lung tissues, decreased cytokines in lungs and maintained the oxidative stress balance through Trx-1 pathway. In conclusion, AC-Res treatment attenuated seawater inhalation induced ARDS via Trx-1 pathway.
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Affiliation(s)
- Yilin Zhao
- Department of Respiration, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Lijie Ma
- Department of Respiration, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Ruixuan Wang
- Department of Respiration, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Tingting Chen
- School of Accounting, Xijing University, Xi'an, Shaanxi 710032, P.R. China
| | - Xueying Liu
- Department of Medicinal Chemistry, School of Pharmacy, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Faguang Jin
- Department of Respiration, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
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Erdem A, Gedikli E, Yersal N, Karaismailoglu S, Muftuoglu S, Fadillioglu E, Tuncer M. Protective role of erdosteine pretreatment on oleic acid–induced acute lung injury. J Surg Res 2017; 213:234-242. [DOI: 10.1016/j.jss.2017.02.061] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 01/12/2017] [Accepted: 02/24/2017] [Indexed: 11/24/2022]
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12
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Singh K, Maity P, Krug L, Meyer P, Treiber N, Lucas T, Basu A, Kochanek S, Wlaschek M, Geiger H, Scharffetter-Kochanek K. Superoxide anion radicals induce IGF-1 resistance through concomitant activation of PTP1B and PTEN. EMBO Mol Med 2015; 7:59-77. [PMID: 25520316 PMCID: PMC4309668 DOI: 10.15252/emmm.201404082] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The evolutionarily conserved IGF-1 signalling pathway is associated with longevity, metabolism, tissue homeostasis, and cancer progression. Its regulation relies on the delicate balance between activating kinases and suppressing phosphatases and is still not very well understood. We report here that IGF-1 signalling in vitro and in a murine ageing model in vivo is suppressed in response to accumulation of superoxide anions () in mitochondria, either by chemical inhibition of complex I or by genetic silencing of -dismutating mitochondrial Sod2. The -dependent suppression of IGF-1 signalling resulted in decreased proliferation of murine dermal fibroblasts, affected translation initiation factors and suppressed the expression of α1(I), α1(III), and α2(I) collagen, the hallmarks of skin ageing. Enhanced led to activation of the phosphatases PTP1B and PTEN, which via dephosphorylation of the IGF-1 receptor and phosphatidylinositol 3,4,5-triphosphate dampened IGF-1 signalling. Genetic and pharmacologic inhibition of PTP1B and PTEN abrogated -induced IGF-1 resistance and rescued the ageing skin phenotype. We thus identify previously unreported signature events with , PTP1B, and PTEN as promising targets for drug development to prevent IGF-1 resistance-related pathologies.
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Affiliation(s)
- Karmveer Singh
- Department of Dermatology and Allergic Diseases, University of Ulm, Ulm, Germany Aging Research Center (ARC), Ulm, Germany
| | - Pallab Maity
- Department of Dermatology and Allergic Diseases, University of Ulm, Ulm, Germany Aging Research Center (ARC), Ulm, Germany
| | - Linda Krug
- Department of Dermatology and Allergic Diseases, University of Ulm, Ulm, Germany Aging Research Center (ARC), Ulm, Germany
| | - Patrick Meyer
- Department of Dermatology and Allergic Diseases, University of Ulm, Ulm, Germany Aging Research Center (ARC), Ulm, Germany
| | - Nicolai Treiber
- Department of Dermatology and Allergic Diseases, University of Ulm, Ulm, Germany
| | - Tanja Lucas
- Department of Gene Therapy, University of Ulm, Ulm, Germany
| | - Abhijit Basu
- Department of Dermatology and Allergic Diseases, University of Ulm, Ulm, Germany
| | | | - Meinhard Wlaschek
- Department of Dermatology and Allergic Diseases, University of Ulm, Ulm, Germany Aging Research Center (ARC), Ulm, Germany
| | - Hartmut Geiger
- Department of Dermatology and Allergic Diseases, University of Ulm, Ulm, Germany Aging Research Center (ARC), Ulm, Germany Institute of Molecular Medicine and Stem Cell Aging, University of Ulm, Ulm, Germany Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center and University of Cincinnati, Cincinnati, OH, USA
| | - Karin Scharffetter-Kochanek
- Department of Dermatology and Allergic Diseases, University of Ulm, Ulm, Germany Aging Research Center (ARC), Ulm, Germany
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Endogeous sulfur dioxide protects against oleic acid-induced acute lung injury in association with inhibition of oxidative stress in rats. J Transl Med 2015; 95:142-56. [PMID: 25581610 DOI: 10.1038/labinvest.2014.147] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 10/04/2014] [Accepted: 10/21/2014] [Indexed: 01/03/2023] Open
Abstract
The role of endogenous sulfur dioxide (SO2), an efficient gasotransmitter maintaining homeostasis, in the development of acute lung injury (ALI) remains unidentified. We aimed to investigate the role of endogenous SO2 in the pathogenesis of ALI. An oleic acid (OA)-induced ALI rat model was established. Endogenous SO2 levels, lung injury, oxidative stress markers and apoptosis were examined. OA-induced ALI rats showed a markedly downregulated endogenous SO2/aspartate aminotransferase 1 (AAT1)/AAT2 pathway and severe lung injury. Chemical colorimetry assays demonstrated upregulated reactive oxygen species generation and downregulated antioxidant capacity in OA-induced ALI rats. However, SO2 increased endogenous SO2 levels, protected against oxidative stress and alleviated ALI. Moreover, compared with OA-treated cells, in human alveolar epithelial cells SO2 downregulated O2(-) and OH(-) generation. In contrast, L-aspartic acid-β-hydroxamate (HDX, Sigma-Aldrich Corporation), an inhibitor of endogenous SO2 generating enzyme, promoted free radical generation, upregulated poly (ADP-ribose) polymerase expression, activated caspase-3, as well as promoted cell apoptosis. Importantly, apoptosis could be inhibited by the free radical scavengers glutathione (GSH) and N-acetyl-L-cysteine (NAC). The results suggest that SO2/AAT1/AAT2 pathway might protect against the development of OA-induced ALI by inhibiting oxidative stress.
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Patel KS, Noel P, Singh VP. Potential influence of intravenous lipids on the outcomes of acute pancreatitis. Nutr Clin Pract 2014; 29:291-4. [PMID: 24687866 DOI: 10.1177/0884533614527774] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Parenteral nutrition (PN) has been associated with a higher rate of adverse outcomes compared with enteral feeding in patients with acute pancreatitis (AP). However, PN may be necessary when feeding via the enteral route is poorly tolerated or impossible, and PN is recommended as a second-line nutrition therapy in AP. Intravenous (IV) lipids are commonly used as a part of PN in patients with AP. While the adverse outcomes related to the use of PN in AP have commonly been attributed to infectious complications, data suggest that the unsaturated fatty acids in the triglycerides used in IV lipids may contribute to the development of organ failure. We discuss the clinical and experimental data on this issue and the alternative lipid emulsions that are being studied.
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Affiliation(s)
- Krutika S Patel
- Division of Gastroenterology, Mayo Clinic, Scottsdale, Arizona
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15
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Salman AE, Yetişir F, Kılıç M, Onal O, Dostbil A, Zeybek D, Aksoy M, Kaymak F, Celik T, Unver S. The impact of pretreatment with bolus dose of enteral glutamine on acute lung injury induced by oleic acid in rats. J Anesth 2013; 28:354-62. [PMID: 24271996 DOI: 10.1007/s00540-013-1745-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Accepted: 10/30/2013] [Indexed: 01/29/2023]
Abstract
PURPOSE Both parenteral and enteral glutamine have shown beneficial effects in sepsis and ischemia/reperfusion-induced acute lung injury (ALI). Oleic acid (OA) has been used to induce ALI in experimental studies. In this study, we investigated the effects of pretreatment of a bolus dose of enteral glutamine on ALI induced by OA in rats. METHODS Twenty-eight adult female Sprague-Dawley rats weighing 240-300 g were divided into four groups, 7 in each. Group I and group II received normal saline for 30 days, group III and group IV received glutamine at a dose of 1 g/kg for 10 days by gavage, and in group II and group IV 100 mg/kg OA was administered i.v. Histopathological examination of the lung was performed with light and electron microscopy. Levels of protein carbonyl, malondialdehyde, superoxide dismutase, catalase, and glutathione peroxidase levels were measured in tissue samples. Levels of tumor necrosis factor (TNF)-α, interleukin (IL)-6, IL-10, and total tissue oxidant status and total tissue antioxidant status were measured in serum samples. RESULTS Light microscopy showed that the total lung injury score of group IV was significantly lower than group II. Change in thickness of the fused basal lamina was not significantly different in groups II and IV under electron microscopy. TNF-α, IL-6, and IL-10 serum levels were higher in group II when compared to group I and significantly attenuated in group IV. CONCLUSION Pretreatment with a bolus dose of enteral glutamine minimized the extent of ALI induced by OA in rats.
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Affiliation(s)
- A Ebru Salman
- Anesthesiology and Reanimation Department, Atatürk Research and Training Hospital, Ankara, Turkey
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Bulmuş FG, Gürsu MF, Muz MH, Yaman I, Bulmuş O, Sakin F. Protective effects of alpha-lipoic Acid on oleic Acid-induced acute lung injury in rats. Balkan Med J 2013; 30:309-14. [PMID: 25207126 DOI: 10.5152/balkanmedj.2013.8426] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2012] [Accepted: 04/24/2013] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Oxidative stress is believed to be an important factor in the pathogenesis of acute lung injury (ALI). AIMS The aim of this study was to investigate the possible protective role of alpha-lipoic acid (α-LA) on oleic acid (OA)-induced ALI in rats. STUDY DESIGN Animal experiment. METHODS A total of thirty-five rats were divided into five groups in the study. Group 1 served as a control group. Rats in Group 2 (α-LA) were administered α-LA intraperitoneally at a dose of 100 mg/kg body weight (BW). Rats in Group 3 (OA) were administered OA intravenously at a dose of 100 mg/kg BW. In Group 4 (pre-OA-α-LA), α-LA was given 15 minutes prior to OA infusion, and in Group 5 (post-OA-α-LA), α-LA was given two hours after OA infusion. Four hours after the OA infusion, rats were decapitated. Blood samples were collected to measure serum levels of malondialdehyde (MDA) and glutathione (GSH), and the levels of activity for superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-Px). Lung tissue samples were taken for histopathological examination. RESULTS Exposure to OA resulted in increases in serum MDA levels (p<0.001), as well as histopathological lesions in lung tissue, and decreases in CAT (p<0.05), GSH-Px (p<0.05) activities and GSH (p<0.05) levels. On the other hand, MDA levels were decreased significantly (p<0.001), while CAT (p<0.05), GSH-Px (p<0.01) activities and GSH (p<0.05) levels were increased significantly in the pre-OA-α-LA group compared with the OA group. CONCLUSION α-LA was found to lessen oxidative stress and to have positive effects on antioxidants in cases of OA-induced ALI. In conclusion, α-LA appears to have protective effects against ALI and potential for the prevention of ALI.
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Affiliation(s)
| | - Mehmet Ferit Gürsu
- Department of Biochemistry, Fırat University Faculty of Medicine, Elazığ, Turkey
| | - Mehmet Hamdi Muz
- Department of Pulmonary Diseases, Fırat University Faculty of Medicine, Elazığ, Turkey
| | - Ihsan Yaman
- Sivrice Vocational School, Fırat University, Elazığ, Turkey
| | - Ozgür Bulmuş
- Veterinary Control Institute, Ministry of Agriculture, Elazığ, Turkey
| | - Fatih Sakin
- Department of Pharmacology and Toxicology, Mustafa Kemal University Faculty of Veterinary Medicine, Hatay, Turkey
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Wei T, Tong W, Wen-ping S, Xiao-hui D, Qiang X, Tian-shui L, Zhi-fang C, Hong-fang J, Li N, Bin Z, Jun-bao D, Bao-ming G. The impact of sodium aescinate on acute lung injury induced by oleic acid in rats. Exp Lung Res 2012; 37:585-99. [PMID: 22087513 DOI: 10.3109/01902148.2011.622426] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are associated with high rates of morbidity and mortality. Currently, several surfactant or anti-inflammatory drugs are under test as treatments for ALI. Sodium aescinate (SA) has been shown to exert anti-inflammatory and antiedematous effects. In the present work, the authors explored the effects of SA and the possible mechanisms of SA action in rats with ALI induced by oleic acid (OA) administration. Eight groups of rats received infusions of normal saline (NS) or OA. Rats exposed to OA were pretreated with 1 mg/kg of SA, or posttreated with SA at low (1 mg/kg), medium (2 mg/kg), or high (6 mg/kg) dose; a positive-control group received methylprednisolone. The pressure of oxygen in arterial blood (P(O(2))) levels, the pulmonary wet/dry weight (W/D) ratios, and indices of quantitative assessment (IQA) of histological lung injury were obtained 2 or 6 hours after OA injection (0.1 mL/kg, intravenously). The levels of superoxide dismutase (SOD), malondialdehyde (MDA), matrix metalloproteinase gelatinase B (MMP-9), and tissue inhibitor of metalloproteinase (TIMP-1) in both plasma and lung tissue were also determined. Both pre- and posttreatment with SA improved OA-induced pulmonary injury, increased P(O(2)) and SOD values, lowered IQA scores, and decreased the lung W/D ratio and MDA and MMP-9 levels in plasma and lung tissue. SA appeared to abrogate OA-induced ALI by modulating the levels of SOD, MDA, and MMP-9 in plasma and lung tissue.
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Affiliation(s)
- Tian Wei
- Beijing Jishuitan Hospital, Beijing, China
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18
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Zhao YL, Zhou GD, Yang HB, Wang JB, Shan LM, Li RS, Xiao XH. Rhein protects against acetaminophen-induced hepatic and renal toxicity. Food Chem Toxicol 2011; 49:1705-10. [PMID: 21515333 DOI: 10.1016/j.fct.2011.04.011] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2011] [Revised: 04/09/2011] [Accepted: 04/11/2011] [Indexed: 02/05/2023]
Abstract
This study investigated the possible protective effects and mechanism of rhein on Acetaminophen (APAP)-induced hepatotoxicity and nephrotoxicity in rats. Treatment of rats with APAP resulted in severe liver and kidney injuries, as demonstrated by drastic elevation of serum glutamate-pyruvate transaminase (GPT), glutamate-oxaloacetic transaminase (GOT), total bilirubin (TBIL), creatinine (CREA), urea nitrogen (UREA) levels and typical histopathological changes including necrosis, phlogocyte infiltration and fatty degeneration in liver, tubules epithelium swelling and severe vacuolar degeneration in kidney. APAP caused oxidative stress, as evidenced by increased reactive oxygen species (ROS) production, nitric oxide (NO) and malondiadehyde (MDA) levels, together with depleted glutathione (GSH) concentration in the liver and kidney of rats. However, rhein can attenuate APAP-induced hepatotoxicity and nephrotoxicity in a dose-dependent manner. Our results showed that GPT, GOT, UREA and CREA levels and ROS production were reduced dramatically, NO, MDA, GSH contents were restored remarkedly by rhein administration, as compared to the APAP alone treated rats. Moreover, the histopathological damage of liver and kidney were also significantly ameliorated by rhein treatment. These findings suggested that the protective effects of rhein against APAP-induced liver and kidney injuries might result from the amelioration of APAP-induced oxidative stress.
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Affiliation(s)
- Yan-Ling Zhao
- Institute of Traditional Chinese Material Medica, People's Liberation Army, Beijing 100039, PR China
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19
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Bing Y, Zhaobao W. Effects of Ginkgo biloba extract on free radical metabolism of liver in mice during endurance exercise. AFRICAN JOURNAL OF TRADITIONAL, COMPLEMENTARY, AND ALTERNATIVE MEDICINES 2010; 7:291-5. [PMID: 21731159 DOI: 10.4314/ajtcam.v7i4.56691] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This study investigated the effect of Ginkgo biloba extract on Free Radical Metabolism of Liver in mice during endurance exercise. Forty-eight mice were divided into the quiet group and the exercised group. And the two groups were both grouped again, including the control group and the drug-treated group. After exhaustive exercise, the exercised groups were subdivided into the immediate group and the recovery group. The swimming time to exhaustion significantly prolonged in the exercised drug-treated group as compared with the exercised control group (P < 0.05); The SOD activity of drug-treated groups significantly increased (P < 0.05) as compared with the control groups and MDA content was significantly lower (P < 0.05). The SOD activity and MDA content of exercised control groups significantly increased (P < 0.05) as compared with the quiet control group. The SOD activity and MDA content of exercised drug-treated groups significantly increased (P < 0.05) as compared with the quiet drug-treated group. The results indicated that Ginkgo biloba extract can obviously increase the body's endurance exercise capacity in mice and delay fatigue; Ginkgo biloba extract can help to increase the activity of the antioxidant enzymes in liver tissue, reduce the lipid peroxidation injury in liver tissue caused by free radicals, improve athletic ability, and promote the recovery process after exercise in mice.
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Affiliation(s)
- Yan Bing
- Dezhou University, Dezhou, Shandong Province, 253023, People's Republic of China.
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Lee YM, Kim BY, Park YY. Role of the PLA2-Activated Neutrophilic Oxidative Stress in Oleic Acid-Induced Acute Lung Injury. Tuberc Respir Dis (Seoul) 2010. [DOI: 10.4046/trd.2010.68.2.55] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Affiliation(s)
- Young Man Lee
- Department of Physiology, Catholic University of Daegu School of Medicine, Daegu, Korea
| | - Byung Yong Kim
- Department of Physiology, Catholic University of Daegu School of Medicine, Daegu, Korea
| | - Yoon Yub Park
- Department of Physiology, Catholic University of Daegu School of Medicine, Daegu, Korea
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Zhang Y, Xing J, Ai T, Wen T, Guan L, Zhao J. Protection of echinacoside against acute lung injury caused by oleic acid in rats. Free Radic Res 2009; 41:798-805. [PMID: 17577740 DOI: 10.1080/10715760701376422] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Yanlin Zhang
- Research Center of Occupational Medicine, Third Hospital of Peking University, Beijing, People's Republic China
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Ji C, Na W, Fei X, Sheng-Jun C, Jia-Bi Z. Characterization, lung targeting profile and therapeutic efficiency of dipyridamole liposomes. J Drug Target 2008; 14:717-24. [PMID: 17162741 DOI: 10.1080/10611860600916586] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The acute respiratory distress syndrome (ARDS) is a severe form of acute lung injury (ALI). Its pathogenesis is closely linked with reactive oxygen species (ROS). Antioxidation has been considered as an efficient treatment. Besides, liposomes are widely investigated as potential drug carriers due to their ability to protect and carry drug molecules to the target organ such as the lung. The present study was undertaken to investigate whether dipyridamole (DIP), delivered as a liposomal preparation, can ameliorate the lipopolysaccharides (LPS)-induced ALI due to the changes of its biodistribution. First, the liposomes entrapping DIP were prepared by film hydration for treating ARDS. Subsequently, the characterizations including entrapment efficiency, size, span and micrograph of DIP liposomes were measured. The concentration change of DIP in tissues and plasma of mice after intravenous administration of DIP injection and DIP liposomes was determined by RP-HPLC and calculated to lung targeting parameters. To prove the therapeutic efficiency, the effects of DIP liposomes on LPS-induced ALI were studied compared with DIP injection. The results showed DIP liposomes have the relative high entrapment efficiency and satisfying particle size. Compared with DIP injection, the liposomes increased the accumulation of DIP in the lung on a vast scale. Furthermore, DIP liposomes alleviated the ALI induced by LPS significantly. All of the results suggested that DIP liposomes have the potential efficacy in treating ALI/ARDS due to their obvious lung targeting.
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Affiliation(s)
- Cheng Ji
- School of Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China.
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Lambertucci RH, Hirabara SM, Silveira LDR, Levada-Pires AC, Curi R, Pithon-Curi TC. Palmitate increases superoxide production through mitochondrial electron transport chain and NADPH oxidase activity in skeletal muscle cells. J Cell Physiol 2008; 216:796-804. [PMID: 18446788 DOI: 10.1002/jcp.21463] [Citation(s) in RCA: 127] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The effect of unbound palmitic acid (PA) at plasma physiological concentration range on reactive oxygen species (ROS) production by cultured rat skeletal muscle cells was investigated. The participation of the main sites of ROS production was also examined. Production of ROS was evaluated by cytochrome c reduction and dihydroethidium oxidation assays. PA increased ROS production after 1 h incubation. A xanthine oxidase inhibitor did not change PA-induced ROS production. However, the treatment with a mitochondrial uncoupler and mitochondrial complex III inhibitor decreased superoxide production induced by PA. The importance of mitochondria was also evaluated in 1 h incubated rat soleus and extensor digitorum longus (EDL) muscles. Soleus muscle, which has a greater number of mitochondria than EDL, showed a higher superoxide production induced by PA. These results indicate that mitochondrial electron transport chain is an important contributor for superoxide formation induced by PA in skeletal muscle. Results obtained with etomoxir and bromopalmitate treatment indicate that PA has to be oxidized to raise ROS production. A partial inhibition of superoxide formation induced by PA was observed by treatment with diphenylene iodonium, an inhibitor of NADPH oxidase. The participation of this enzyme complex was confirmed through an increase of p47(phox) phosphorylation after treatment with PA.
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Affiliation(s)
- Rafael Herling Lambertucci
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil.
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A double-blind placebo-controlled study to evaluate the safety and efficacy of L-2-oxothiazolidine-4-carboxylic acid in the treatment of patients with acute respiratory distress syndrome. Crit Care Med 2008; 36:782-8. [PMID: 18209670 DOI: 10.1097/ccm.0b013e318164e7e4] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Acute respiratory distress syndrome is an abrupt inflammatory illness that involves damage from reactive oxygen species. We examined the efficacy and safety of oxothiazolidine-4-carboxylic acid (OTZ), a free radical scavenger, in treating acute respiratory distress syndrome. DESIGN Double-blind, placebo-controlled trial. SETTING Multicentered study. PATIENTS Patients with a PaO2/FiO2 < or = 200 and bilateral infiltrates on chest radiograph, and requiring mechanical ventilation. INTERVENTIONS We randomized 215 patients to receive OTZ, 210 mg/kg per day every 8 hrs for 14 days or placebo. MEASUREMENTS AND MAIN RESULTS Ventilator-free days (the number of days alive and free from ventilator requirement) during the first 30 days of study were 8.3 vs. 13.5 days for the OTZ and placebo groups, respectively (p < .001). Mortality was 30/101 (29.7%) in the OTZ group and 18/114 (15.8%) in the placebo group during the 30-day study period (p = .014). This study was terminated prematurely for safety reasons after 215 of the planned 352 patients were enrolled. CONCLUSIONS OTZ does not improve survival or reduce ventilator time in patients with acute respiratory distress syndrome and may worsen outcome, although mortality in the OTZ group was similar or lower than most similar trials. Alternatively, our results may be best explained by the unusually excellent outcome in the placebo group.
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Stachowska E, Baśkiewicz-Masiuk M, Dziedziejko V, Gutowska I, Baranowska-Bosiacka I, Marchlewicz M, Dołęgowska B, Wiszniewska B, Machaliński B, Chlubek D. Conjugated linoleic acid increases intracellular ROS synthesis and oxygenation of arachidonic acid in macrophages. Nutrition 2008; 24:187-99. [DOI: 10.1016/j.nut.2007.10.018] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2006] [Revised: 07/29/2007] [Accepted: 10/26/2007] [Indexed: 11/17/2022]
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26
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Wu ZM, Wen T, Tan YF, Liu Y, Ren F, Wu H. Effects of salvianolic acid a on oxidative stress and liver injury induced by carbon tetrachloride in rats. Basic Clin Pharmacol Toxicol 2007; 100:115-20. [PMID: 17244260 DOI: 10.1111/j.1742-7835.2007.00020.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
In the present study, we investigated the hepatoprotective effects of salvianolic acid A, a novel antioxidant, against oxidative stress and acute liver injury induced by carbon tetrachloride (CCl(4)) in rats, and the mechanisms underlying its protective effects. Administration of CCl(4) to rats caused severe hepatic damage, as demonstrated by the significant increase in the levels of serum alanine aminotransferase, aspartate aminotransferase and classic histological changes including hepatocyte necrosis or apoptosis, haemorrhage, fatty degeneration, etc. Co-treatment with salvianolic acid A (20 mg/kg, intraperitoneally), a water-soluble extract from a Chinese traditional drug, Radix Salvia miltiorrhiza, significantly decreased CCl(4)-induced hepatotoxicity. Salvianolic acid A not only decreased serum alanine aminotransferase, aspartate aminotransferas levels and ameliorated histopathological manifestations in CCl(4)-treated rats, but also reduced oxidative stress, as evidenced by decreased reactive oxygen species production and malondialdehyde concentrations in the liver tissues, combined with elevated hepatic superoxide dismutase activity and gluthathione content. In addition, salvianolic acid A treatment remarkably reduced intrahepatic tumour necrosis factor-alpha concentrations and caspase-3 activities as compared with the CCl(4)-treated rats. The results suggested that treatment with salvianolic acid A provides a potent protective effect against acute hepatic damage caused by CCl(4) in rats, which may mainly be related to its antioxidative effect.
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Affiliation(s)
- Zhi-Ming Wu
- Division of Hepatitis Institute, Beijing You-An Hospital Affiliated with Capital University of Medical Sciences, Beijing, China
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27
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Wu Y, Li L, Wen T, Li YQ. Protective effects of echinacoside on carbon tetrachloride-induced hepatotoxicity in rats. Toxicology 2007; 232:50-6. [PMID: 17222497 DOI: 10.1016/j.tox.2006.12.013] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2006] [Revised: 12/03/2006] [Accepted: 12/07/2006] [Indexed: 11/24/2022]
Abstract
The aim of this study was to investigate the possible protective effects of echinacoside, one of the phenylethanoids isolated from the stems of Cistanches salsa, a Chinese herbal medicine, on the free radical damage of liver caused by carbon tetrachloride in rats. Treatment of rats with carbon tetrachloride produced severe liver injury, as demonstrated by dramatic elevation of serum ALT, AST levels and typical histopathological changes including hepatocyte necrosis or apoptosis, haemorrhage, fatty degeneration, etc. In addition, carbon tetrachloride administration caused oxidative stress in rats, as evidenced by increased reactive oxygen species (ROS) production and MDA concentrations in the liver of rats, along with a remarkable reduction in hepatic SOD activity and GSH content. However, simultaneous treatment with echinacoside (50mg/kg, intraperitoneally) significantly attenuated carbon tetrachloride-induced hepatotoxicity. The results showed that serum ALT, AST levels and hepatic MDA content as well as ROS production were reduced dramatically, and hepatic SOD activity and GSH content were restored remarkably by echinacoside administration, as compared to the carbon tetrachloride-treated rats. Moreover, the histopathological damage of liver and the number of apoptotic hepatocytes were also significantly ameliorated by echinacoside treatment. It is therefore suggested that echinacoside can provide a definite protective effect against acute hepatic injury caused by CCl(4) in rats, which may mainly be associated with its antioxidative effect.
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Affiliation(s)
- Yu Wu
- Institute of Liver Diseases, The 302th Hospital of PLA, Beijing, PR China
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Nie H, Xiong L, Lao N, Chen S, Xu N, Zhu Z. Hyperbaric oxygen preconditioning induces tolerance against spinal cord ischemia by upregulation of antioxidant enzymes in rabbits. J Cereb Blood Flow Metab 2006; 26:666-74. [PMID: 16136055 DOI: 10.1038/sj.jcbfm.9600221] [Citation(s) in RCA: 110] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The present study examined the hypothesis that spinal cord ischemic tolerance induced by hyperbaric oxygen (HBO) preconditioning is triggered by an initial oxidative stress and is associated with an increase of antioxidant enzyme activities as one effector of the neuroprotection. New Zealand White rabbits were subjected to HBO preconditioning, hyperbaric air (HBA) preconditioning, or sham pretreatment once daily for five consecutive days before spinal cord ischemia. Activities of catalase (CAT) and superoxide dismutase were increased in spinal cord tissue in the HBO group 24 h after the last pretreatment and reached a higher level after spinal cord ischemia for 20 mins followed by reperfusion for 24 or 48 h, in comparison with those in control and HBA groups. The spinal cord ischemic tolerance induced by HBO preconditioning was attenuated when a CAT inhibitor, 3-amino-1,2,4-triazole,1 g/kg, was administered intraperitoneally 1 h before ischemia. In addition, administration of a free radical scavenger, dimethylthiourea, 500 mg/kg, intravenous, 1 h before each day's preconditioning, reversed the increase of the activities of both enzymes in spinal cord tissue. The results indicate that an initial oxidative stress, as a trigger to upregulate the antioxidant enzyme activities, plays an important role in the formation of the tolerance against spinal cord ischemia by HBO preconditioning.
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Affiliation(s)
- Huang Nie
- Department of Anesthesiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
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