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Zhou XN, Zhang Q, Peng H, Qin YJ, Liu YH, Wang L, Cheng ML, Luo XH, Li H. Silent information regulator sirtuin 1 ameliorates acute liver failure via the p53/glutathione peroxidase 4/gasdermin D axis. World J Gastroenterol 2024; 30:1588-1608. [PMID: 38617450 PMCID: PMC11008418 DOI: 10.3748/wjg.v30.i11.1588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 12/20/2023] [Accepted: 02/18/2024] [Indexed: 03/21/2024] Open
Abstract
BACKGROUND Acute liver failure (ALF) has a high mortality with widespread hepatocyte death involving ferroptosis and pyroptosis. The silent information regulator sirtuin 1 (SIRT1)-mediated deacetylation affects multiple biological processes, including cellular senescence, apoptosis, sugar and lipid metabolism, oxidative stress, and inflammation. AIM To investigate the association between ferroptosis and pyroptosis and the upstream regulatory mechanisms. METHODS This study included 30 patients with ALF and 30 healthy individuals who underwent serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) testing. C57BL/6 mice were also intraperitoneally pretreated with SIRT1, p53, or glutathione peroxidase 4 (GPX4) inducers and inhibitors and injected with lipopolysaccharide (LPS)/D-galactosamine (D-GalN) to induce ALF. Gasdermin D (GSDMD)-/- mice were used as an experimental group. Histological changes in liver tissue were monitored by hematoxylin and eosin staining. ALT, AST, glutathione, reactive oxygen species, and iron levels were measured using commercial kits. Ferroptosis- and pyroptosis-related protein and mRNA expression was detected by western blot and quantitative real-time polymerase chain reaction. SIRT1, p53, and GSDMD were assessed by immunofluorescence analysis. RESULTS Serum AST and ALT levels were elevated in patients with ALF. SIRT1, solute carrier family 7a member 11 (SLC7A11), and GPX4 protein expression was decreased and acetylated p5, p53, GSDMD, and acyl-CoA synthetase long-chain family member 4 (ACSL4) protein levels were elevated in human ALF liver tissue. In the p53 and ferroptosis inhibitor-treated and GSDMD-/- groups, serum interleukin (IL)-1β, tumour necrosis factor alpha, IL-6, IL-2 and C-C motif ligand 2 levels were decreased and hepatic impairment was mitigated. In mice with GSDMD knockout, p53 was reduced, GPX4 was increased, and ferroptotic events (depletion of SLC7A11, elevation of ACSL4, and iron accumulation) were detected. In vitro, knockdown of p53 and overexpression of GPX4 reduced AST and ALT levels, the cytostatic rate, and GSDMD expression, restoring SLC7A11 depletion. Moreover, SIRT1 agonist and overexpression of SIRT1 alleviated acute liver injury and decreased iron deposition compared with results in the model group, accompanied by reduced p53, GSDMD, and ACSL4, and increased SLC7A11 and GPX4. Inactivation of SIRT1 exacerbated ferroptotic and pyroptotic cell death and aggravated liver injury in LPS/D-GalN-induced in vitro and in vivo models. CONCLUSION SIRT1 activation attenuates LPS/D-GalN-induced ferroptosis and pyroptosis by inhibiting the p53/GPX4/GSDMD signaling pathway in ALF.
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Affiliation(s)
- Xing-Nian Zhou
- Department of Infectious Diseases, The Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang 550004, Guizhou Province, China
| | - Quan Zhang
- Department of Infectious Diseases, The Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang 550004, Guizhou Province, China
| | - Hong Peng
- Department of Infectious Diseases, Guizhou Provincial People's Hospital, Guiyang 550001, Guizhou Province, China
| | - Yu-Jie Qin
- Department of Infectious Diseases, The Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang 550004, Guizhou Province, China
| | - Yu-Hong Liu
- Department of Infectious Diseases, The Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang 550004, Guizhou Province, China
| | - Lu Wang
- Department of Infectious Diseases, The Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang 550004, Guizhou Province, China
| | - Ming-Liang Cheng
- Department of Infectious Diseases, The Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang 550004, Guizhou Province, China
| | - Xin-Hua Luo
- Department of Infectious Diseases, Guizhou Provincial People's Hospital, Guiyang 550001, Guizhou Province, China
| | - Hong Li
- Department of Infectious Diseases, The Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang 550004, Guizhou Province, China
- Department of Infectious Diseases, Guizhou Provincial People's Hospital, Guiyang 550001, Guizhou Province, China
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de Zordo-Banliat A, Grollier K, Vanthuyne N, Floquet S, Billard T, Dagousset G, Pégot B, Magnier E. Perfluoroalkyl Selenoxides, Selenones and Selenoximines: General Preparation and Properties. Angew Chem Int Ed Engl 2023; 62:e202300951. [PMID: 36705091 DOI: 10.1002/anie.202300951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 01/26/2023] [Accepted: 01/27/2023] [Indexed: 01/28/2023]
Abstract
A selective access to perfluoroalkyl selenoxides, via Oxone® as oxidant or to selenones by using a Polyoxometalate-based Ionic Liquid (POM-IL) as a catalyst for the oxidation step is described. The reaction works with various perfluoralkyl chains and substituents with satisfactory to excellent yields. A two-step one-pot reaction from selenocyanates was performed to gain access to perfluoroalkyl selenoxides. The previously unknown perfluoroalkyl selenoximines family was also prepared with good yields. Having unlocked two strategies for the synthesis of fluoroalkylated SeIV and SeVI compounds, we then evaluated the Hansch-Leo lipophilicity parameters of these groups. Finally, asymmetric aryl perfluoroalkyl selenoximines were resolved to determine their absolute configurations.
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Affiliation(s)
- Arnaud de Zordo-Banliat
- Université Paris-Saclay, UVSQ, CNRS, UMR 8180, Institut Lavoisier de Versailles, 78000, Versailles, France
| | - Kevin Grollier
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246), Univ Lyon, CNRS, Université Lyon 1, CPE Lyon, 1 rue Victor Grignard, 69622, Lyon, France
| | | | - Sébastien Floquet
- Université Paris-Saclay, UVSQ, CNRS, UMR 8180, Institut Lavoisier de Versailles, 78000, Versailles, France
| | - Thierry Billard
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246), Univ Lyon, CNRS, Université Lyon 1, CPE Lyon, 1 rue Victor Grignard, 69622, Lyon, France
| | - Guillaume Dagousset
- Université Paris-Saclay, UVSQ, CNRS, UMR 8180, Institut Lavoisier de Versailles, 78000, Versailles, France
| | - Bruce Pégot
- Université Paris-Saclay, UVSQ, CNRS, UMR 8180, Institut Lavoisier de Versailles, 78000, Versailles, France
| | - Emmanuel Magnier
- Université Paris-Saclay, UVSQ, CNRS, UMR 8180, Institut Lavoisier de Versailles, 78000, Versailles, France
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3
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Wang T, Lu Z, Qu XH, Xiong ZY, Wu YT, Luo Y, Zhang ZY, Han XJ, Xie CF. Chrysophanol-8-O-glucoside protects mice against acute liver injury by inhibiting autophagy in hepatic stellate cells and inflammatory response in liver-resident macrophages. Front Pharmacol 2022; 13:951521. [PMID: 36147355 PMCID: PMC9485814 DOI: 10.3389/fphar.2022.951521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 08/10/2022] [Indexed: 11/13/2022] Open
Abstract
Acute liver failure (ALF) is an unfavorable condition characterized by the rapid loss of liver function and high mortality. Chrysophanol-8-O-glucoside (CPOG) is an anthraquinone derivative isolated from rhubarb. This study aims to evaluate the protective effect of CPOG on lipopolysaccharide (LPS)/D-GalN-induced ALF and its underlying mechanisms. LPS/D-GalN-induced mice ALF model and LPS treatment model in RAW 264.7 and LX2 cells were established. It was found that CPOG ameliorated LPS/D-GalN-induced liver injury and improved mortality as indicated by Hematoxylin-eosin (H&E) staining. Molecularly, qPCR and ELISA results showed that CPOG alleviated LPS/D-GalN-induced release of alanine aminotransferase and aspartate transaminase and the secretion of TNF-α and IL-1β in vivo. LPS/D-GalN-induced intracellular ROS production was also attenuated by CPOG in liver tissue. Further, CPOG attenuated ROS generation and inhibited the expression of p-IκB and p-p65 as well as the expression of TNF-α and IL-1β stimulated by LPS in RAW 264.7 cells. In addition, CPOG alleviated LPS-induced up-regulation of LC3B, p62, ATG5 and Beclin1 by attenuating ROS production and inhibiting MAPK signaling in LX2 cells. Taken together, our data indicated that the CPOG protected against LPS/D-GalN-induced ALF by inhibiting oxidative stress, inflammation response and autophagy. These findings suggest that CPOG could be potential drug for the treatment of ALF in clinic.
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Affiliation(s)
- Tao Wang
- Institute of Geriatrics, Jiangxi Provincial People’s Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Zhuo Lu
- Institute of Geriatrics, Jiangxi Provincial People’s Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Xin-Hui Qu
- Institute of Geriatrics, Jiangxi Provincial People’s Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
- Department of Neurology, Jiangxi Provincial People’s Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Zi-Ying Xiong
- Department of Pathology, Jiangxi Maternal and Child Health Hospital, Nanchang, China
| | - Ya-Ting Wu
- School of Basic Medical Sciences, Nanchang University, Nanchang, China
| | - Yong Luo
- Key Laboratory of Women’s Reproductive Health of Jiangxi, Jiangxi Maternal and Child Health Hospital, Nanchang, China
| | - Zi-Yu Zhang
- Department of Pathology, Jiangxi Maternal and Child Health Hospital, Nanchang, China
| | - Xiao-Jian Han
- Institute of Geriatrics, Jiangxi Provincial People’s Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
- Department of Neurology, Jiangxi Provincial People’s Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
- Department of Pharmacology, School of Pharmaceutical Science, Nanchang University, Nanchang, China
- *Correspondence: Xiao-Jian Han, ; Cai-Feng Xie,
| | - Cai-Feng Xie
- School of Basic Medical Sciences, Nanchang University, Nanchang, China
- *Correspondence: Xiao-Jian Han, ; Cai-Feng Xie,
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Solvent free nucleophilic selenocyanation with [bmim][SeCN]. Direct access to perfluoroalkylselenide compounds. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132507] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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5
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Kohandel O, Sheikhi-Mohammareh S, Oroojalian F, Memariani T, Mague J, Shiri A. A Dimroth rearrangement approach for the synthesis of selenopheno[2,3-e][1,2,4]triazolo[1,5-c]pyrimidines with cytotoxic activity on breast cancer cells. Mol Divers 2021; 26:1621-1633. [PMID: 34357512 DOI: 10.1007/s11030-021-10290-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 07/28/2021] [Indexed: 01/17/2023]
Abstract
New selenopheno[2,3-e][1,2,4]triazolo[1,5-c]pyrimidine derivatives have been synthesized via Dimroth rearrangement by cyclocondensation of 7-cyano-4-hydrazinyl-6-(pyrrolidin-1-yl)selenopheno[3,2-d]pyrimidine with electrophilic carbons of either orthoesters in acetic acid or carbon disulfide in pyridine followed by S-alkylation. All the newly synthesized products have been structurally elucidated. The in vitro anticancer screening of the tricyclic Se-containing heterocycles was accomplished against human breast carcinoma MCF-7 cancerous cell line and L929 cells. Anticancer results revealed that the S-hexyl-substituted compound with an IC50 value of 158.9 µM in 72 h was foremost among others in cytotoxic potency. In the following order, S-pentyl and S-ethyl-substituted derivatives with IC50 values of 216.1 and 396.5 µM were second and third efficient compounds as in anticancer activity, respectively. The inhibitory effects of the mentioned compounds were less on the growth of L929 cells.
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Affiliation(s)
- Omid Kohandel
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | | | - Fatemeh Oroojalian
- Department of Advanced Sciences and Technologies, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran.,Natural Products and Medicinal Plants Research Center, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Toktam Memariani
- Natural Products and Medicinal Plants Research Center, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Joel Mague
- Department of Chemistry, Tulane University, New Orleans, LA, 70118, USA
| | - Ali Shiri
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
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Hellwig PS, Guedes JS, Barcellos AM, Perin G, Lenardão EJ. Synthesis of 3,4-Bis(Butylselanyl)Selenophenes and 4-Alkoxyselenophenes Promoted by Oxone ®. Molecules 2021; 26:molecules26082378. [PMID: 33921844 PMCID: PMC8073937 DOI: 10.3390/molecules26082378] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 04/15/2021] [Accepted: 04/15/2021] [Indexed: 12/29/2022] Open
Abstract
We describe herein an alternative transition-metal-free procedure to access 3,4-bis(butylselanyl)selenophenes and the so far unprecedented 3-(butylselanyl)-4-alkoxyselenophenes. The protocol involves the 5-endo-dig electrophilic cyclization of 1,3-diynes promoted by electrophilic organoselenium species, generated in situ through the oxidative cleavage of the Se-Se bond of dibutyl diselenide using Oxone® as a green oxidant. The selective formation of the title products was achieved by controlling the solvent identity and the amount of dibutyl diselenide. By using 4.0 equiv of dibutyl diselenide and acetonitrile as solvent at 80 °C, four examples of 3,4-bis(butylselanyl)selenophenes were obtained in moderate to good yields (40–78%). When 3.0 equiv of dibutyl diselenide were used, in the presence of aliphatic alcohols as solvent/nucleophiles under reflux, 10 3-(butylselanyl)-4-alkoxyselenophenes were selectively obtained in low to good yields (15–80%).
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Affiliation(s)
| | | | | | - Gelson Perin
- Correspondence: (G.P.); (E.J.L.); Tel.: +55-53-3275-7356 (G.P. & E.J.L.)
| | - Eder J. Lenardão
- Correspondence: (G.P.); (E.J.L.); Tel.: +55-53-3275-7356 (G.P. & E.J.L.)
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7
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Męcik P, Pigulski B, Szafert S. Serendipitous Formation of Various Selenium Heterocycles Hidden in the Classical Synthesis of Selenophene. Org Lett 2021; 23:1066-1070. [PMID: 33502204 PMCID: PMC7874900 DOI: 10.1021/acs.orglett.0c04275] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Indexed: 12/26/2022]
Abstract
Synthesis of complex di(selenophen-3-yl)diselenides and 3-methylene-3H-1,2-diselenoles directly from 1-bromobutadiynes is described. The transformation is performed under conditions used before for the synthesis of simple selenophenes from butadiynes. The reaction is operationally straightforward, and complex products were obtained in high yields. Structures of the final products were unambiguously confirmed by the means of 77Se NMR and single-crystal X-ray diffraction.
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Affiliation(s)
- Patrycja Męcik
- Faculty of Chemistry, University
of Wrocław, 14 F. Joliot-Curie, 50-383 Wrocław, Poland
| | - Bartłomiej Pigulski
- Faculty of Chemistry, University
of Wrocław, 14 F. Joliot-Curie, 50-383 Wrocław, Poland
| | - Sławomir Szafert
- Faculty of Chemistry, University
of Wrocław, 14 F. Joliot-Curie, 50-383 Wrocław, Poland
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8
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Hellwig PS, Peglow TJ, Penteado F, Bagnoli L, Perin G, Lenardão EJ. Recent Advances in the Synthesis of Selenophenes and Their Derivatives. Molecules 2020; 25:E5907. [PMID: 33322179 PMCID: PMC7764687 DOI: 10.3390/molecules25245907] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/07/2020] [Accepted: 12/09/2020] [Indexed: 11/25/2022] Open
Abstract
The selenophene derivatives are an important class of selenium-based heterocyclics. These compounds play an important role in prospecting new drugs, as well as in the development of new light-emitting materials. During the last years, several methods have been emerging to access the selenophene scaffold, employing a diversity of cyclization-based synthetic strategies, involving specific reaction partners and particularities. This review presents a comprehensive discussion on the recent advances in the synthesis of selenophene-based compounds, starting from different precursors, highlighting the main differences, the advantages, and limitations among them.
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Affiliation(s)
- Paola S. Hellwig
- Laboratório de Síntese Orgânica Limpa-LASOL-CCQFA, Universidade Federal de Pelotas-UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil; (P.S.H.); (T.J.P.); (F.P.)
| | - Thiago J. Peglow
- Laboratório de Síntese Orgânica Limpa-LASOL-CCQFA, Universidade Federal de Pelotas-UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil; (P.S.H.); (T.J.P.); (F.P.)
| | - Filipe Penteado
- Laboratório de Síntese Orgânica Limpa-LASOL-CCQFA, Universidade Federal de Pelotas-UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil; (P.S.H.); (T.J.P.); (F.P.)
| | - Luana Bagnoli
- Group of Catalysis, Synthesis and Organic Green Chemistry, Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy;
| | - Gelson Perin
- Laboratório de Síntese Orgânica Limpa-LASOL-CCQFA, Universidade Federal de Pelotas-UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil; (P.S.H.); (T.J.P.); (F.P.)
| | - Eder J. Lenardão
- Laboratório de Síntese Orgânica Limpa-LASOL-CCQFA, Universidade Federal de Pelotas-UFPel, P.O. Box 354, 96010-900 Pelotas, RS, Brazil; (P.S.H.); (T.J.P.); (F.P.)
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Bai K, Jiang L, Zhu S, Feng C, Zhao Y, Zhang L, Wang T. Dimethylglycine sodium salt protects against oxidative damage and mitochondrial dysfunction in the small intestines of mice. Int J Mol Med 2019; 43:2199-2211. [PMID: 30816456 DOI: 10.3892/ijmm.2019.4093] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 02/07/2019] [Indexed: 11/06/2022] Open
Abstract
Few studies have investigated the use of dimethylglycine sodium salt (DMG‑Na) to protect against small intestinal damage, despite its prevalence in the treatment of human diseases. The present study aimed to evaluate the protective effects of DMG‑Na against oxidative damage and mitochondrial dysfunction in the small intestines of mice. A total of 100 male Kunming mice were randomly assigned to five groups (n=20 per group): i) Mice gastric intubation with 0.3 ml sterile saline solution (once), then subcutaneously injected with sterile saline solution (0.5 ml) after 1 h (CON); ii) mice gastric intubation with 12 mg DMG‑Na/0.3 ml of sterile saline solution once, then subcutaneously injected with sterile saline solution (0.5 ml) 1 h later (D); iii) mice gastric intubation with 0.3 ml sterile saline solution once, then subcutaneously injected with indomethacin (10 mg/kg BW) 1 h later (IN); iv) mice gastric intubation with 12 mg DMG‑Na/0.3 ml sterile saline solution once, then subcutaneously injected with indomethacin (10 mg/kg BW) 1 h later (DIN); and v) mice subcutaneously injected with indomethacin (10 mg/kg BW), then gastrically intubated with 12 mg DMG‑Na/0.3 ml sterile saline solution once after 1 h (IND). The present study was evaluated the effects of DMG‑Na on mice intestinal damage induced by indomethacin injection. The histological morphology of the small intestine improved (P<0.05) in the DIN and IND groups, compared with the IN group. The antioxidant system was enhanced, oxidative damage was reduced, and the expression of antioxidant‑associated genes was increased in the small intestine and its mitochondria in the DIN and IND groups, compared with the IN group. The above results suggested that pretreatment and treatment with DMG‑Na reduced oxidative damage by enhancing antioxidant capacity, increasing the expression of antioxidant‑associated genes, ameliorating mitochondrial dysfunction and suppressing apoptosis. Further study is required to determine the specific mechanism by which pretreatment and treatment with DMG‑Na reduced small intestinal damage.
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Affiliation(s)
- Kaiwen Bai
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, P.R. China
| | - Luyi Jiang
- College of Animal Science, Zhejiang University, Hangzhou, Zhejiang 310058, P.R. China
| | - Shanli Zhu
- College of Agriculture and Life Science, Department of Animal Science, Cornell University, Ithaca, NY 14853, USA
| | - Chengcheng Feng
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, P.R. China
| | - Yongwei Zhao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, P.R. China
| | - Lili Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, P.R. China
| | - Tian Wang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, P.R. China
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Prochnow T, Maroneze A, Back DF, Zeni G. Synthesis of 3-(Organochalcogen) Chalcogenazolo Indoles via Cascade Cyclization of N-Alkynylindoles. J Org Chem 2019; 84:2891-2900. [PMID: 30702892 DOI: 10.1021/acs.joc.9b00052] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A transition metal-free one-pot, three-steps protocol combining N-alkynylindoles, n-butyllithium, elemental selenium, and an electrophile source was developed to allow the synthesis of 3-(organoselanyl) selenazolo indoles. Substrate scope was studied by varying the structure of N-alkynylindoles and the electrophile source. This sequential reaction proceeded selectively through an initial intramolecular 5- endo-dig mode with two new carbon-selenium bonds formation in a one-pot procedure. The reaction conditions were also compatible with elemental sulfur and tellurium, which led to construct 3-(alkylthio) thiazolo indoles and 3-(alkyltelluro) tellurazolo indoles, respectively. In addition, it was also demonstrated that a series of dichalcogenides derived from chalcogenazoloindoles ring could be easily prepared via oxidation of chalcogenolate anion in contact with air.
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de Gomes MG, Donato F, Souza LC, Goes AR, Filho CB, Del Fabbro L, Bianchini MC, Hassan W, Boeira SP, Puntel RL, Jesse CR. γ-Oryzanol supplementation modifies the inflammatory and oxidative response in fulminant hepatic failure in mice. PHARMANUTRITION 2018. [DOI: 10.1016/j.phanu.2018.10.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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12
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Yu J, Liu L, Zhang H, Wu Y, Pei H, Ma L, Xiong A, Xie C. SKLB023 protects mice against acute liver injury by inhibiting proinflammatory cytokine production in both T cells and macrophages. RSC Adv 2018; 8:33338-33346. [PMID: 35548127 PMCID: PMC9086442 DOI: 10.1039/c8ra03720e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 09/14/2018] [Indexed: 02/05/2023] Open
Abstract
Acute liver failure is a severe clinical syndrome accompanied with excessive inflammatory response. Our previous study demonstrated that SKLB023, a novel thiazolidinedione derivative, showed potent anti-inflammatory activity in rheumatoid arthritis. The purpose of the present study is to evaluate the protective effect of SKLB023 on lipopolysaccharide (LPS)/D-GalN-induced liver failure and to explore the underlying molecular mechanisms. Our results showed that SKLB023 significantly improved mortality and liver injury as indicated by reduced serum levels of aminotransferases and alleviated pathological damage. Additionally, SKLB023 decreased the percentage of activated T cells and macrophages as well as the serum levels of cytokines in vivo. Furthermore, SKLB023 decreased levels of TNF-α and IL-6 secreted from liver macrophages (Kupffer cells) stimulated by LPS in vitro. Our results indicated that the protective effects of SKLB023 were associated with its significant impact on the inflammatory cytokines, which were produced by both T cells and macrophages. A novel thiazolidinedione derivative SKLB023 offers a potent therapeutic strategy for the treatment of acute liver failure.![]()
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Affiliation(s)
- Jia Yu
- Department of Pharmacy, The Third Affiliated Hospital of Nanchang University Nanchang Jiangxi China
| | - Lili Liu
- Department of Pharmacy, The First Affiliated Hospital of Nanchang University Nanchang Jiangxi China
| | - Huiming Zhang
- Department of Pharmacy, The Third Affiliated Hospital of Nanchang University Nanchang Jiangxi China
| | - Yating Wu
- School of Basic Medical Sciences, Nanchang University 999 Xuefu Road, Honggutang New District Nanchang Jiangxi 330031 China +86-791-83827160 +86-791-83827160
| | - Heying Pei
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University Chengdu China
| | - Liang Ma
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University Chengdu China
| | - Anwen Xiong
- Department of Medical Oncology, Shanghai Pulmonary Hospital & Thoracic Cancer Institute, Tongji University School of Medicine Shanghai China
| | - Caifeng Xie
- School of Basic Medical Sciences, Nanchang University 999 Xuefu Road, Honggutang New District Nanchang Jiangxi 330031 China +86-791-83827160 +86-791-83827160.,State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University Chengdu China
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Bai K, Jiang L, Zhang L, Zhao Y, Lu Y, Zhu J, Cai J, Zhang L, Wang T. In vitro free radical scavenging capacity of dimethylglycine sodium salt and its protective ability against oleic acid hydroperoxide-induced oxidative damage in IPEC-J2 cells. Int J Mol Med 2018; 42:3447-3458. [PMID: 30221672 DOI: 10.3892/ijmm.2018.3876] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 08/14/2018] [Indexed: 11/06/2022] Open
Abstract
The aim of the present study was to evaluate the in vitro free radical scavenging capacity of dimethylglycine sodium (DMG‑Na) and its protective ability against oleic acid hydroperoxide (OAHPx)‑induced oxidative damage in IPEC‑J2 cells. Initially, the free radical scavenging activities of water‑soluble pigments (DMG‑Na, betalain, capsanthin and cyanidin‑3‑rutinoside) were measured and compared with those of Trolox. Subsequently, freshly collected swine blood was mixed with heparin and centrifuged to obtain erythrocytes. In order to induce the free radical chain oxidation in erythrocytes, the aqueous peroxyl radicals were generated by thermal decomposition of 2,2'‑azobis(2‑amidinopropane) dihydrochloride (AAPH) in oxygen. A 2% suspension of porcine erythrocytes in PBS buffer were pre‑incubated for 30 min at 37˚C with DMG‑Na (32 µM), followed by incubation with or without AAPH (75 mM) for 5 h with gentle shaking. Additionally, IPEC‑J2 cells were randomly assigned to four groups (n=6 per group): Cells treated with phosphate buffered saline (PBS); cells treated with DMG‑Na (32 µM); cells treated with oleic acid hydroperoxides (OAHPx, 20 µM; TO group); cells treated with DMG‑Na (32 µM) followed by OAHPx (20 µM; DTO group). The cells were cultured in Dulbecco's modified Eagle's medium, Ham's F‑12 mixture, 1.5 mM HEPES, 5% (v/v) fetal bovine serum, 1% (v/v) insulin‑transferrin‑selenium mixture, 1% (v/v) penicillin‑streptomycin mixture and 2.5 µg/ml fungizone (37˚C, 5% CO2). The results showed that DMG‑Na exerted the strongest free radical scavenging capacity at 0.32 M from 0.08‑0.64 M, and that it could prevent AAPH‑induced porcine erythrocyte hemolysis by increasing its antioxidant capacity (P<0.05). The results also demonstrated that antioxidant capacity and antioxidant‑associated gene expression increased in the DTO group relative to the TO group (P<0.05), indicating that DMG‑Na prevented the OAHPx‑induced oxidative damage in IPEC‑J2 cells by improving the antioxidant capacity and antioxidant‑associated gene expression.
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Affiliation(s)
- Kaiwen Bai
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, P.R. China
| | - Luyi Jiang
- College of Animal Science, Zhejiang University, Hangzhou, Zhejiang 310000, P.R. China
| | - Ligen Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, P.R. China
| | - Yongwei Zhao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, P.R. China
| | - Yi Lu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, P.R. China
| | - Jingya Zhu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, P.R. China
| | - Jie Cai
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, P.R. China
| | - Lili Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, P.R. China
| | - Tian Wang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu 210095, P.R. China
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14
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Maity P, Ranu BC. Iodine-Catalyzed Synthesis of Chalcogenophenes by the Reaction of 1,3-Dienyl Bromides and Potassium Selenocyanate/Potassium Sulfide (KSeCN/K2
S). Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701232] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Pintu Maity
- Department of Organic Chemistry, Indian Association for the Cultivation of Science; Jadavpur, Kolkata 700032 India
| | - Brindaban C. Ranu
- Department of Organic Chemistry, Indian Association for the Cultivation of Science; Jadavpur, Kolkata 700032 India
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15
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Zhou RJ, Ye H, Wang F, Wang JL, Xie ML. Apigenin inhibits d-galactosamine/LPS-induced liver injury through upregulation of hepatic Nrf-2 and PPARγ expressions in mice. Biochem Biophys Res Commun 2017; 493:625-630. [DOI: 10.1016/j.bbrc.2017.08.141] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Accepted: 08/24/2017] [Indexed: 12/12/2022]
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16
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Yan D, Liu HL, Yu ZJ, Huang YH, Gao D, Hao H, Liao SS, Xu FY, Zhou XY. BML-111 Protected LPS/D-GalN-Induced Acute Liver Injury in Rats. Int J Mol Sci 2016; 17:ijms17071114. [PMID: 27420055 PMCID: PMC4964489 DOI: 10.3390/ijms17071114] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 06/30/2016] [Accepted: 07/01/2016] [Indexed: 01/08/2023] Open
Abstract
Lipoxins (LXs) display unique pro-resolving and anti-inflammatory functions in a variety of inflammatory conditions. The present study was undertaken to investigate the effects of BML-111 (5(S),6(R),7-trihydroxyheptanoic acid methyl ester), the agonist of lipoxin A₄ receptor, in a model of Lipopolysaccharides (LPS) and d-Galactosamine (d-GalN) induced acute liver injury, and to explore the mechanisms. Histopathological analyses were carried out to quantify liver injury degree. The activities of myeloperoxidase (MPO) were examined to evaluate the levels of neutrophil infiltration. The activities of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) in serum were detected to evaluate the functions of the liver. The amounts of tumor necrosis factor-α (TNF-α), interleukin-10 (IL-10), and interleukin-1β (IL-1β) were measured using enzyme-linked immunosorbent assay (ELISA), and the expression levels of transforming growth factor-β1(TGF-β1) and cyclooxygenase-2 (COX-2) were examined using Western blotting. The antioxidant capacity, the activities of inducible nitric oxide synthase (iNOS), the contents of malondialdehyde (MDA) and nitric oxide (NO) were analyzed with the kits via biochemical analysis. We established the model of acute liver injury with lipopolysaccharide and d-Galactosamine (LPS/d-GalN): (1) histopathological results and MPO activities, with the activities of AST and ALT in serum, consistently demonstrated LPS and d-GalN challenge could cause severe liver damage, but BML-111 could prevent pathological changes, inhibit neutrophil infiltration, and improve the hepatic function; (2) LPS/d-GalN increased TNF-α, IL-1β, COX-2, and IL-10, while decreasing TGF-β1. However, BML-111 could repress LPS/d-GalN -induced TNF-α, IL-1β and COX-2, meanwhile increasing the expression levels of TGF-β1 and IL-10; (3) LPS/d-GalN inhibited the activities of superoxide dismutase (SOD), catalase (CAT), total antioxidant capacity (T-AOC), and hydroxyl radical-scavenging ability, simultaneously increasing the levels of MDA and NO, so also the activity of iNOS. Otherwise, BML-111 could reverse all the phenomena. In a word, BML-111 played a protective role in acute liver injury induced by LPS and d-GalN in rats, through improving antioxidant capacity and regulating the balance of inflammatory cytokines.
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Affiliation(s)
- Dan Yan
- Department of Pharmacology, Medical College of Nanchang University, Nanchang 330006, China.
- Department of Pharmacy, Jiangxi Province Cancer Hospital, Nanchang 330006, China.
| | - Hai-Ling Liu
- Department of Pathophysiology, Medical College of Nanchang University, Nanchang 330006, China.
| | - Zhong-Jian Yu
- Department of Pharmacology, Medical College of Nanchang University, Nanchang 330006, China.
- Department of Science and Education, Jiangxi Province Cancer Hospital, Nanchang 330006, China.
| | - Yong-Hong Huang
- Department of Pathophysiology, Medical College of Nanchang University, Nanchang 330006, China.
- Jiangxi Province Key Laboratory of Tumor Etiology and Molecular Pathology, Nanchang 330006, China.
| | - Dian Gao
- Department of Human Parasitology, Medical College of Nanchang University, Nanchang 330006, China.
| | - Hua Hao
- Department of Pathology, Second Affiliated Hospital of Nanchang University, Nanchang 330006, China.
| | - Shou-Sheng Liao
- Department of Pathology, Second Affiliated Hospital of Nanchang University, Nanchang 330006, China.
| | - Fang-Yun Xu
- Department of Pathophysiology, Medical College of Nanchang University, Nanchang 330006, China.
| | - Xiao-Yan Zhou
- Department of Pathophysiology, Medical College of Nanchang University, Nanchang 330006, China.
- Jiangxi Province Key Laboratory of Tumor Etiology and Molecular Pathology, Nanchang 330006, China.
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17
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Huang Y, Yu F, Wang J, Chen L. Near-Infrared Fluorescence Probe for in Situ Detection of Superoxide Anion and Hydrogen Polysulfides in Mitochondrial Oxidative Stress. Anal Chem 2016; 88:4122-9. [DOI: 10.1021/acs.analchem.6b00458] [Citation(s) in RCA: 136] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Yan Huang
- Key Laboratory of Coastal Environmental Processes and Ecological
Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
- Department of Chemistry, Qinghai Normal University, Xining 810008, China
| | - Fabiao Yu
- Key Laboratory of Coastal Environmental Processes and Ecological
Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
| | - Jianchao Wang
- Department of Chemistry, Qinghai Normal University, Xining 810008, China
| | - Lingxin Chen
- Key Laboratory of Coastal Environmental Processes and Ecological
Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
- College of
Life Science, Yantai University, Yantai 264005, China
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18
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Hashem RM, Hassanin KM, Rashed LA, Mahmoud MO, Hassan MG. Effect of silibinin and vitamin E on the ASK1-p38 MAPK pathway in D-galactosamine/lipopolysaccharide induced hepatotoxicity. Exp Biol Med (Maywood) 2016; 241:1250-7. [PMID: 26941058 DOI: 10.1177/1535370216636719] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 02/02/2016] [Indexed: 11/15/2022] Open
Abstract
Apoptosis signal-regulating kinase 1 (ASK1), a redox-sensor mitogen-activated protein kinase kinase kinase (MAPKKK) that activates p38 MAPK pathways in oxidative stress-induced hepatotoxicity in D-galactosamine/lipopolysaccharide (D-GalN/LPS) model, is a key central pathway in which specific targeting of ASK1 deactivation is of a great therapeutic potential. We tested the effect of silibinin and vitamin E in curative and prophylactic manner of treatment on the negative modulators of ASK1, thioredoxin1 (Trx1), thioredoxin reductase1 (TrxR1), and the protein phosphatase (PP5), whereas they have previously proven to have hepatoprotective effect. Either curative or prophylactic silibinin and vitamin E groups significantly decreased ASK1 and p38 MAPK levels through increasing the gene expression of Trx1, TrxR1, and PP5 to reduce the oxidative stress as demonstrated by decreasing the levels of NADPH oxidase 4 (NOX4), TBARS and conjugated diene with a concomitant increase in the levels of GSH, CAT, and SOD. These results were confirmed by histopathology examination which illustrated progressive degenerative changes of hepatocytes such as hydropic degeneration, vacuolation, pyknosis, karyolysis, and loss of architecture of some cells in D-GalN/LPS treatment, and these features were alleviated with silibinin and vitamin E administration. In conclusion, silibinin and vitamin E decreased ASK1-p38 MAPK pathway through deactivating the upstream signalling ASK1 molecule via increasing the levels of Trx1 and TrxR1 as well as the PP5 to alleviate in D-GalN/LPS induced hepatotoxicity.
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Affiliation(s)
- Reem M Hashem
- Department of Biochemistry, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
| | - Kamel Ma Hassanin
- Department of Biochemistry, Faculty of Veterinary Medicine, Minia University, El Minia, Egypt
| | - Laila A Rashed
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Mohamed O Mahmoud
- Department of Biochemistry, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
| | - Mohamed G Hassan
- Department of Biochemistry, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
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19
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Choi JW, Kim IH, Kim YM, Lee MK, Nam TJ. Pyropia yezoensis glycoprotein regulates antioxidant status and prevents hepatotoxicity in a rat model of D-galactosamine/lipopolysaccharide-induced acute liver failure. Mol Med Rep 2016; 13:3110-4. [PMID: 26935645 DOI: 10.3892/mmr.2016.4932] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Accepted: 11/18/2015] [Indexed: 11/05/2022] Open
Abstract
The present study aimed to investigate the effects of Pyropia yezoensis glycoprotein (PYGP) on hepatic antioxidative enzyme activity and mitogen-activated protein kinase (MAPK) phosphorylation in a rat model of D-galactosamine/lipopolysaccharide (D-GalN/LPS)-induced hepatotoxicity. Glutamic-oxaloacetic transaminase (GOT) and glutamic-pyruvic transaminase (GPT) were measured to determine the severity of hepatotoxicity. Treatment with D‑GalN/LPS significantly increased the GOT, GPT and lipid peroxidation levels, and decreased the antioxidant capacity of the rats. Treatment with PYGP (150 and 300 mg/kg/body weight) decreased the levels of GOT, GPT and lipid peroxidation levels. The activities of antioxidative enzymes, including catalase, glutathione S‑transferase and glutathione were upregulated following PYGP treatment. Furthermore, D‑GalN/LPS‑induced MAPK phosphorylation, and inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) protein expression were downregulated by PYGP. These results indicated that PYGP may exert hepatoprotective effects via the upregulation of antioxidative enzymes, and the downregulation of the MAPK signaling pathway and iNOS and COX-2 expression.
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Affiliation(s)
- Jeong-Wook Choi
- Department of Food and Life Science, Pukyong National University, Busan 608‑737, Republic of Korea
| | - In-Hye Kim
- Department of Food and Life Science, Pukyong National University, Busan 608‑737, Republic of Korea
| | - Young-Min Kim
- Department of Food and Life Science, Pukyong National University, Busan 608‑737, Republic of Korea
| | - Min-Kyeong Lee
- Department of Food and Life Science, Pukyong National University, Busan 608‑737, Republic of Korea
| | - Taek-Jeong Nam
- Department of Food and Life Science, Pukyong National University, Busan 608‑737, Republic of Korea
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20
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Cerium oxide nanoparticles alleviate oxidative stress and decreases Nrf-2/HO-1 in D-GALN/LPS induced hepatotoxicity. Biomed Pharmacother 2015. [PMID: 26211586 DOI: 10.1016/j.biopha.2015.05.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Translocation of the master regulator of antioxidant-response element-driven antioxidant gene, nuclear factor erythroid 2 (Nrf-2) from the cytoplasm into the nucleus and triggering the transcription of hemoxygenase-1 (HO-1) to counteract the oxidative stress is a key feature in D-galactoseamine and lipopolysaccharide (D-GALN/LPS) induced hepatotoxicity. We mainly aimed to study the effect of cerium oxide (CeO2) nanoparticles on Nrf-2/HO-1 pathway whereas; it has previously shown to have an antioxidant effect in liver models. Administration of CeO2 nanoparticles significantly decreased the translocation of the cytoplasmic Nrf-2 with a concomitant decrement in the gene expression of HO-1 as it reveals a powerful antioxidative effect as indicated by the significant increase in the levels of glutathione (GSH), glutathione peroxidase (GPX1), glutathione reductase (GR), superoxide dismutase (SOD) and catalase. In synchronization, a substantial decrement in the levels of inducible nitric oxide synthase (iNOS), TBARS and percentage of DNA fragmentation was established. These results were confirmed by histopathology examination which showed a severe degeneration, haemorrhages, widened sinusoids and focal leukocyte infiltration in D-GALN/LPS treatment and these features were alleviated with CeO2 administration. In conclusion, CeO2 is a potential antioxidant that can effectively decrease the translocation of the cytoplasmic Nrf-2 into the nucleus and decrease HO-1 in D-GALN/LPS induced hepatotoxicity.
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21
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Luo M, Zhao A, Li J, Chen Y, Tian D, Wang C, Hu Z, Gao J. Acute liver injury attenuation of a novel recombinant sTNFR through blocking hepatic apoptosis. Immunopharmacol Immunotoxicol 2015; 37:295-300. [PMID: 25982795 DOI: 10.3109/08923973.2015.1035390] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
CONTEXT Tumor necrosis factor (TNF) α plays a key role in acute liver injury (ALI) induced by injection of d-galactosamine (D-Gal)/lipopolysaccharide (LPS). A novel recombinant trimeric sTNFRII, sTNFRII-gAD, has been tested to be effective in ameliorating ALI, when administered prior to ALI establishment. This study aims to validate the protective effect of sTNFRII-gAD when given after ALI setup and further explore its effect on hepatic apoptosis. MATERIALS AND METHODS The treatments were carried out concomitantly with ALI establishment with clinically approved sTNFRII-Fc (the dimeric sTNFRII) as a positive control. Lethality, liver weight, and serum alanine transaminase were measured, and histological analysis was performed to evaluate liver injury induced by D-Gal/LPS. Additionally, Terminal-deoxynucleoitidyl transferase-mediated nick end labeling (TUNEL) and Western blot analyses of caspase-3 were used to examine hepatocellular apoptosis. RESULTS sTNFRII-gAD given after D-Gal/LPS injection turned out to attenuate animal mortality significantly (p < 0.01), and had better hepatic protection. In terms of apoptosis, both sTNFRII-gAD and sTNFRII-Fc displayed noticeable improvement of apoptosis evidenced by dramatic decline of active caspase-3 compared to the control group. CONCLUSIONS The results demonstrated that sTNFRII-gAD therapeutically diminished the lethality induced by D-Gal/LPS, possibly through blocking hepatic apoptosis initiated by TNFα. Of note, sTNFRII-gAD was superior to sTNFRII-Fc in some respects, indicating a promising alternative for the therapeutic strategy against the diseases associated with excessive TNFα.
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Affiliation(s)
- Mansheng Luo
- Department of Microbiology & Immunology, School of Medicine, JingGangShan University , Jian , China
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22
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Schwartz Radatz C, Rampon DS, Balaguez RA, Alves D, Schneider PH. Synthesis of 2-Substituted 1,3-Benzoselenazoles from Carboxylic Acids Promoted by Tributylphosphine. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402808] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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23
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Zhang J, Xu L, Zhang L, Ying Z, Su W, Wang T. Curcumin attenuates D-galactosamine/lipopolysaccharide-induced liver injury and mitochondrial dysfunction in mice. J Nutr 2014; 144:1211-8. [PMID: 24899159 DOI: 10.3945/jn.114.193573] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Curcumin, a naturally occurring antioxidant, has various beneficial effects in the treatment of human diseases. However, little information regarding the protection it provides against acute liver injury is available. The present study investigated the protective effects of curcumin against D-galactosamine (D-GalN)/lipopolysaccharide (LPS)-induced acute liver injury in mice. A total of 40 male Kunming mice were randomly assigned to 5 groups: 1) mice administered saline vehicle injection (control), 2) mice administered 200 mg/kg body weight (BW) curcumin by i.p. injection (CUR), 3) mice administered D-GalN/LPS (700 mg and 5 μg/kg BW) via i.p. injection (GL), 4) mice administered 200 mg/kg BW curcumin i.p. 1 h before D-GalN/LPS injection (CUR-GL), and 5) mice administered 200 mg/kg BW curcumin i.p. 1 h after D-GalN/LPS injection (GL-CUR). Twenty h after D-GalN/LPS injection, serum alanine aminotransferase activities were 18.5% and 13.5% lower (P < 0.05) and aspartate aminotransferase (AST) activities were 26.6% and 9.6% lower (P < 0.05) in the CUR-GL and GL-CUR groups, respectively, than in the GL group. The CUR-GL and GL-CUR groups had 64.4% and 15.0% higher (P < 0.05) mitochondrial membrane potentials, respectively, and the CUR-GL group had a 44.7% lower reactive oxygen species concentration than the GL group (P < 0.05). Mitochondrial manganese superoxide dismutase activities were 111% and 77.9% higher (P < 0.05) and the percentages of necrotic cells were 47.0% and 32.4% lower (P < 0.05) in the CUR-GL and GL-CUR groups, respectively, than in the GL group. Liver mRNA levels of sirtuin 1 (Sirt1) were 56.4% lower (P < 0.05) in the CUR-GL group than in the GL group. Moreover, compared with the GL-CUR group, the CUR-GL group had an 18.7% lower serum AST activity, a 31.7% lower mitochondrial malondialdehyde concentration, a 36.0% lower hepatic reactive oxygen species concentration, and a 43.0% higher mitochondrial membrane potential. These results suggested that curcumin protects against D-GalN/LPS-induced liver damage by the enhancing antioxidant defense system, attenuating mitochondrial dysfunction and inhibiting apoptosis. This was especially true for curcumin pretreatment, which highlighted its promise as a preventive treatment for acute liver injury in clinical settings.
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Affiliation(s)
- Jingfei Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Li Xu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Lili Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Zhixiong Ying
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Weipeng Su
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Tian Wang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, People's Republic of China
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24
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Filho CB, Del Fabbro L, Boeira SP, Furian AF, Savegnago L, Soares LC, Braga AL, Jesse CR. Hepatoprotective effect ofbis(4-methylbenzoyl) diselenide against CCl4-induced oxidative damage in mice. Cell Biochem Funct 2012; 31:152-8. [DOI: 10.1002/cbf.2869] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Revised: 08/07/2012] [Accepted: 08/08/2012] [Indexed: 12/12/2022]
Affiliation(s)
- Carlos Borges Filho
- Laboratório de Avaliações Farmacológicas e Toxicológicas Aplicadas às Moléculas Bioativas, LaftamBio Pampa; Universidade Federal do Pampa; CEP 97650-000; Itaqui; RS; Brazil
| | - Lucian Del Fabbro
- Laboratório de Avaliações Farmacológicas e Toxicológicas Aplicadas às Moléculas Bioativas, LaftamBio Pampa; Universidade Federal do Pampa; CEP 97650-000; Itaqui; RS; Brazil
| | - Silvana P. Boeira
- Laboratório de Avaliações Farmacológicas e Toxicológicas Aplicadas às Moléculas Bioativas, LaftamBio Pampa; Universidade Federal do Pampa; CEP 97650-000; Itaqui; RS; Brazil
| | - Ana Flávia Furian
- Laboratório de Avaliações Farmacológicas e Toxicológicas Aplicadas às Moléculas Bioativas, LaftamBio Pampa; Universidade Federal do Pampa; CEP 97650-000; Itaqui; RS; Brazil
| | - Lucielli Savegnago
- Centro de Desenvolvimento Tecnológico, Unidade Biotecnologia; Universidade Federal de Pelotas; Pelotas; RS; Brazil
| | - Letiére Cabreira Soares
- Departamento de Química, Centro de Ciências Naturais e Exatas; Universidade Federal de Santa Maria; Santa Maria; CEP 97105-900; RS; Brazil
| | - Antonio Luiz Braga
- Departamento de Química, Centro de Ciências Naturais e Exatas; Universidade Federal de Santa Maria; Santa Maria; CEP 97105-900; RS; Brazil
| | - Cristiano R. Jesse
- Laboratório de Avaliações Farmacológicas e Toxicológicas Aplicadas às Moléculas Bioativas, LaftamBio Pampa; Universidade Federal do Pampa; CEP 97650-000; Itaqui; RS; Brazil
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25
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Toxicological evaluation of chronic exposure to the organochalcogen 3-methyl-1-phenyl-2-(phenylseleno)oct-2-en-1-one in male rats. Food Chem Toxicol 2012; 50:2450-5. [DOI: 10.1016/j.fct.2012.04.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2012] [Revised: 04/26/2012] [Accepted: 04/27/2012] [Indexed: 01/07/2023]
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26
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Roehrs JA, Pistoia RP, Back DF, Zeni G. Three-Step One-Pot Synthesis of Imidazo[2,1-b]chalcogenazoles via Intramolecular Cyclization of N-Alkynylimidazoles. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200075] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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27
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Protective effects of a novel trimerized sTNFRII on acute liver injury. Int Immunopharmacol 2012; 13:88-92. [DOI: 10.1016/j.intimp.2012.03.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2012] [Revised: 03/11/2012] [Accepted: 03/19/2012] [Indexed: 01/03/2023]
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28
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Ebselen reduces hyperglycemia temporarily-induced by diazinon: a compound with insulin-mimetic properties. Chem Biol Interact 2012; 197:80-6. [PMID: 22484362 DOI: 10.1016/j.cbi.2012.03.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2011] [Revised: 03/19/2012] [Accepted: 03/21/2012] [Indexed: 11/23/2022]
Abstract
The present study investigated the effect of ebselen (EB) against hyperglycemia induced by the organophosphate (OPI) diazinon (DI) in rats. The insulin-mimetic properties of EB were investigated in vitro with the aim of better understanding the hypoglycemic effect of this compound. The protective effect of EB against pancreatic and hepatic damage caused by DI in rats was also appraised. In the in vivo experiments, rats were pre-treated with a single injection of EB (50mg/kg, intraperitoneal, i.p.). Afterward, animals were treated with a single injection of DI (200 mg/kg, i.p.). The parameters indicative of pancreatic and hepatic damage such as, serum amylase, lipase, aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP) and lactate dehydrogenase (LDH) activities as well as serum glucose levels, hepatic glycogen content and glucose-6-phosphatase (G6Pase) activity were determined. EB pre-treatment was effective in reducing serum amylase, lipase, AST, ALT, ALP, and LDH activities, protecting against pancreatic and hepatic damage. EB reduced hyperglycemia and increased hepatic glycogen content in animals exposed to DI. In the in vitro assays, EB (150 μM) or insulin (IN 10 μM, positive control) was incubated with either skeletal muscle or hepatic tissue with the aim of measuring glucose uptake, glycogen synthesis and glycogen breakdown. EB increased the glucose uptake in skeletal muscle, stimulated hepatic glycogen synthesis and inhibited glycogen breakdown in a similar way to IN. In conclusion, EB, possibly through its insulin-mimetic action, protected against pancreatic and hepatic damage caused by DI in rats.
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Wilhelm EA, Souza ACG, Gai BM, Chagas PM, Roehrs JA, Nogueira CW. Hyperthermic seizures enhance responsiveness to pentylenetetrazole and induce cognitive dysfunction: protective effect of 3-alkynyl selenophene. Life Sci 2012; 90:666-72. [PMID: 22483695 DOI: 10.1016/j.lfs.2012.03.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2011] [Revised: 01/24/2012] [Accepted: 03/06/2012] [Indexed: 01/09/2023]
Abstract
AIMS In this study we investigated the effect of pre-treatment with 3-alkynyl selenophene (3-ASP) against the increase in responsiveness to pentylenetetrazole [PTZ seizure threshold] and cognitive dysfunction induced by experimental febrile seizures (FS). The effects of 3-ASP were compared to those of diazepam (DZP). MAIN METHODS Young rats, at postnatal day 21, developed seizures after exposure to a stream of heated air to approximately 41°C. A non-spatial long-term memory and PTZ seizure threshold were determined 30 days after FS. The behavioural seizures were stereotyped followed by facial automatisms, often followed by body flexion. Young rats were pre-treated with 3-ASP (50 and 100mg/kg; per oral route), DZP (1 and 5mg/kg; intraperitoneally) or vehicle. KEY FINDINGS 3-ASP and DZP pre-treatments were not effective in protecting against seizures induced by FS. 3-ASP pre-treatment protected against the increase in responsiveness to PTZ and cognitive dysfunction induced by FS. DZP pre-treatment was effective in protecting against the increase in responsiveness to PTZ, but not, against the impaired memory induced by FS. SIGNIFICANCE 3-ASP pre-treatment protected against impairment of memory performance in the step-down passive avoidance task and the increase in the susceptibility to seizures caused by FS early in life of rats.
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Affiliation(s)
- Ethel Antunes Wilhelm
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, Brazil
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Santos Lacerda D, Oliveira Castro V, Mascarenhas M, Guerra RB, Dani C, Coitinho A, Gomez R, Funchal C. Acute administration of the organochalcogen 3-methyl-1-phenyl-2-(phenylseleno)oct-2-en-1-one induces biochemical and hematological disorders in male rats. Cell Biochem Funct 2012; 30:315-9. [DOI: 10.1002/cbf.2806] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2011] [Revised: 11/12/2011] [Accepted: 01/03/2012] [Indexed: 12/29/2022]
Affiliation(s)
| | | | | | - Robson Brum Guerra
- Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Sul; Sertão; Rio Grande do Sul; Brazil
| | - Caroline Dani
- Centro Universitário Metodista IPA; Porto Alegre; Rio Grande do Sul; Brazil
| | - Adriana Coitinho
- Instituto de Ciências Básicas da Saúde; Universidade Federal do Rio Grande do Sul; Porto Alegre; Rio Grande do Sul; Brazil
| | - Rosane Gomez
- Instituto de Ciências Básicas da Saúde; Universidade Federal do Rio Grande do Sul; Porto Alegre; Rio Grande do Sul; Brazil
| | - Cláudia Funchal
- Centro Universitário Metodista IPA; Porto Alegre; Rio Grande do Sul; Brazil
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Lu Y, Bao X, Sun T, Xu J, Zheng W, Shen P. Triptolide attenuate the oxidative stress induced by LPS/D-GalN in mice. J Cell Biochem 2012; 113:1022-33. [DOI: 10.1002/jcb.23434] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Rocha JBT, Saraiva RA, Garcia SC, Gravina FS, Nogueira CW. Aminolevulinate dehydratase (δ-ALA-D) as marker protein of intoxication with metals and other pro-oxidant situations. Toxicol Res (Camb) 2012. [DOI: 10.1039/c2tx20014g] [Citation(s) in RCA: 90] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Ninomiya M, Garud DR, Koketsu M. Biologically significant selenium-containing heterocycles. Coord Chem Rev 2011. [DOI: 10.1016/j.ccr.2011.07.009] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Gai BM, Stein AL, Roehrs JA, Bilheri FN, Nogueira CW, Zeni G. Synthesis and antidepressant-like activity of selenophenes obtained via iron(III)-PhSeSePh-mediated cyclization of Z-selenoenynes. Org Biomol Chem 2011; 10:798-807. [PMID: 22120691 DOI: 10.1039/c1ob06548c] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We present here the synthesis and antidepressant-like action of a series of 2,5-disubstituted-3-(organoseleno)-selenophenes prepared by a novel synthetic route, the FeCl(3)-diorganyl dichalcogenide-mediated intramolecular cyclization of (Z)-chalcogenoenynes. The cyclized products were obtained in good yields. The results showed that 2c, 2d, 2e and 2o, evaluated in the mouse forced-swimming test, elicited an antidepressant-like activity. The studies clearly show that the phenyl group at the 2-position and an organoselenium group at the 3-position of the selenophene ring are essential for the antidepressant-like activity of selenophenes. A close inspection of the results also revealed that the fluorophenyl portion in the organoselenium group is fundamental for the antidepressant-like action of this class of organochalcogens.
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Affiliation(s)
- Bibiana M Gai
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNE, UFSM, Santa Maria-Rio Grande do Sul, Brasil
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Barancelli DA, Schumacher RF, Leite MR, Zeni G. Copper(II)-Mediated Intramolecular Cyclization of (Z)-Chalcogenoenynes: Synthesis of 3-Halochalcogenophene Derivatives. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100992] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Schumacher RF, Rosário AR, Souza ACG, Acker CI, Nogueira CW, Zeni G. The potential antioxidant activity of 2,3-dihydroselenophene, a prototype drug of 4-aryl-2,3-dihydroselenophenes. Bioorg Med Chem 2011; 19:1418-25. [PMID: 21288725 DOI: 10.1016/j.bmc.2011.01.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2010] [Revised: 01/04/2011] [Accepted: 01/05/2011] [Indexed: 10/18/2022]
Abstract
Here we present our results in palladium cross-coupling reaction of aryl boronic acids with 4-iodo-2,3-dihydroselenophene derivatives. The cross-coupled products were obtained in satisfactory yields. A dehydrogenation of 4,5-diphenyl-2,3-dihydroselenophene was activated by DDQ and the 2,3-diarylselenophene was obtained in good yield. Regarding the antioxidant activity, the selenophene derivative 3a was effective in counteracting lipid and protein oxidation as well as scavenging ABTS radical. The findings of the present study indicate that 3a is a prototype for future drug development programs to treat disorders mediated by reactive oxygen species.
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Affiliation(s)
- Ricardo F Schumacher
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNE, UFSM, Santa Maria, Rio Grande do Sul, CEP 97105-900, Brazil
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Wilhelm EA, Jesse CR, Bortolatto CF, Nogueira CW. (E)-2-benzylidene-4-phenyl-1,3-diselenole has antioxidant and hepatoprotective properties against oxidative damage induced by 2-nitropropane in rats. Fundam Clin Pharmacol 2011; 25:80-90. [DOI: 10.1111/j.1472-8206.2010.00813.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Rhoden CRB, Zeni G. New development of synthesis and reactivity of seleno- and tellurophenes. Org Biomol Chem 2011; 9:1301-13. [PMID: 21210032 DOI: 10.1039/c0ob00557f] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Due to the many new and remarkable findings and applications that have been published in recent years in seleno- and tellurophene chemistry, this review revisits the different aspects of this chemistry, including synthesis, reactivity and applications in the field of heterocycles.
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Affiliation(s)
- Cristiano R B Rhoden
- Centro Universitário Franciscano UNIFRA, Area Ciencias Nat. & Tecnol., Santa Maria, Rio Grande do Sul, Brazil
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Duan GJ, Zhu J, Xu CY, Wan JY, Zhang L, Ge XD, Liu LM, Liu YS. Protective effect of Gö6976, a PKD inhibitor, on LPS/D: -GalN-induced acute liver injury in mice. Inflamm Res 2010; 60:357-66. [PMID: 21063746 DOI: 10.1007/s00011-010-0278-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2010] [Accepted: 10/27/2010] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE Protein kinase D (PKD) is a newly described serine/threonine protein kinase that plays a pivotal role in inflammatory response. In the present study, we examined the protective effect of Gö6976, a PKD inhibitor, on lipopolysaccharide (LPS) and D: -galactosamine (D: -GalN)-induced acute liver injury in mice. MATERIALS AND METHODS Mice were pretreated intraperitoneally with Gö6976 30 min before LPS/D: -GalN administration . The mortality and degree of hepatic injury was subsequently assessed. RESULTS The results indicated that LPS/D: -GalN administration markedly induced hepatic PKD activation, lethality and liver injury, while pretreatment of the PKD inhibitor Gö6976 significantly inhibited LPS-induced PKD activation, improved the survival of LPS/D: -GalN-administered mice and attenuated LPS/D: -GalN-induced liver injury, as evidenced by reduced levels of serum aminotransferases as well as reduced histopathological changes. In addition, the protective effects of Gö6976 were paralleled by suppressed activation of mitogen-activated protein kinases (MAPKs), decreased expression of tumor necrosis factor-α (TNF-α) and adhesion molecules, and reduced apoptosis and myeloperoxidase (MPO) activity in liver. CONCLUSIONS Our experimental data indicated that Gö6976, a PKD inhibitor, could effectively prevent LPS/D: -GalN-induced acute liver injury by inhibition of MAPKs activation to reduce TNF-α production. This suggests the potential pharmacological value of PKD inhibitors in the intervention of inflammation-based liver diseases.
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Affiliation(s)
- G J Duan
- Institute of Pathology, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
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Wilhelm EA, Jesse CR, Roman SS, Bortolatto CF, Nogueira CW. Anticonvulsant effect of (E)-2-benzylidene-4-phenyl-1,3-diselenole in a pilocarpine model in mice. Life Sci 2010; 87:620-7. [DOI: 10.1016/j.lfs.2010.09.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2010] [Revised: 07/08/2010] [Accepted: 09/23/2010] [Indexed: 11/28/2022]
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Abstract
Hepatic encephalopathy is a serious complication of acute and chronic liver diseases and has a high mortality rate. The pathogenesis of hepatic encephalopathy remains unclear, and there is no means of prevention or effective cure for the disease. Therefore, there is an urgent need for the basic and clinical research of hepatic encephalopathy to elucidate its pathogenesis. The development of animal models is important for elucidating the pathogenesis of hepatic encephalopathy and providing new avenues for diagnosis and therapy of the disease. Among a variety of animal models, rat model is applied most widely for similarity to humans, repeatability, reliability, applicability, controllability, simplicity and economy. In this paper, we briefly review various rat models of hepatic encephalopathy that have different origins.
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Gay BM, Prigol M, Stein AL, Nogueira CW. Antidepressant-like pharmacological profile of 3-(4-fluorophenylselenyl)-2,5-diphenylselenophene: Involvement of serotonergic system. Neuropharmacology 2010; 59:172-9. [PMID: 20488195 DOI: 10.1016/j.neuropharm.2010.05.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2009] [Revised: 05/10/2010] [Accepted: 05/10/2010] [Indexed: 11/29/2022]
Abstract
This study evaluated the effect of 3-(4-fluorophenylselenyl)-2,5-diphenylselenophene (DPS) in the mouse forced swim test (FST) and tail suspension test (TST), two assays predictive of depressant activity. The involvement of serotonergic system in the effect caused by DPS was studied. The antidepressant-like effect of combined treatment with subeffetive doses of DPS and paroxetine, a selective serotonin reuptake inhibitor (SSRI) was investigated. Further, we verified the possible mechanism responsible for antidepressive-like effect of DPS. The results show that DPS (50 and 100 mg/kg, p.o.) significantly reduced the immobility time during the FST and TST, without accompanying changes in ambulation when assessed in the open-field test. The anti-immobility effect of DPS (50 mg/kg, p.o.) in the FST was prevented by pretreatment of mice with pCPA (100 mg/kg, i.p., once a day for 4 consecutive days, an inhibitor of 5-HT synthesis), WAY 100635 (0.1 mg/kg, s.c., a selective 5-HT1A receptor antagonist), ritanserin (1 mg/kg, i.p., a 5-HT2 receptor antagonist) or ondansetron (1 mg/kg, i.p., a 5-HT3 receptor antagonist). Combined treatment with paroxetine and DPS reduced the immobility time in the FST. DPS at the doses of 10-100 mg/kg did not produce any change in the cerebral activity of MAO-A or MAO-B. DPS at the dose of 50 mg/kg inhibited significantly 5-HT uptake in synaptosomes. These results suggest that DPS produced an antidepressant-like effect in the mouse FST and TST and this effect seems most likely to be mediated through an interaction with serotonergic system, particularly by 5-HT reuptake inhibition.
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Affiliation(s)
- Bibiana M Gay
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria CEP 97105-900, RS, Brazil
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Wilhelm EA, Jesse CR, Prigol M, Alves D, Schumacher RF, Nogueira CW. 3-Alkynyl selenophene protects against carbon-tetrachloride-induced and 2-nitropropane-induced hepatic damage in rats. Cell Biol Toxicol 2010; 26:569-77. [PMID: 20397041 DOI: 10.1007/s10565-010-9164-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2009] [Accepted: 03/31/2010] [Indexed: 11/24/2022]
Abstract
The aim of this study was to investigate the protective effect of 3-alkynyl selenophene (3-ASP) on acute liver injury induced by carbon tetrachloride (CCl(4)) and 2-nitropropane (2-NP) in rats. On the first day of treatment, the animals received 3-ASP (25 mg/kg, p.o.). On the second day, the rats received CCl(4) (1 mg/kg, i.p.) or 2-NP (100 mg/kg, p.o.). Twenty-four hours after CCl(4) or 2-NP administration, the animals were euthanized, and their plasma and liver were removed for biochemical and histological analyses. The histological analysis revealed extensive injury in the liver of CCl(4)-exposed and 2-NP-exposed rats, which was attenuated by 3-ASP. 3-ASP significantly attenuated (1) the increase in plasmatic aspartate and alanine aminotransferase activities and lipid peroxidation levels induced by CCl(4) and 2-NP; (2) the inhibition of δ-aminolevulinic dehydratase activity caused by 2-NP; and (3) the decrease in ascorbic acid (AA) levels and catalase (CAT) activity caused by CCl(4). AA levels and CAT activity remained unaltered in the liver of rats exposed to 2-NP. The protective effect of 3-ASP on acute liver injury induced by CCl(4) and 2-NP in rats was demonstrated.
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Affiliation(s)
- Ethel Antunes Wilhelm
- Programa de Pós-Graduação em Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, RS, Brazil
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Catal T, Sacan O, Yanardag R, Bolkent S. Protective effects of antioxidant combination against D-galactosamine-induced kidney injury in rats. Cell Biochem Funct 2010; 28:107-13. [DOI: 10.1002/cbf.1625] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Yun SS, Kim SP, Kang MY, Nam SH. Inhibitory effect of curcumin on liver injury in a murine model of endotoxemic shock. Biotechnol Lett 2009; 32:209-14. [DOI: 10.1007/s10529-009-0153-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2009] [Revised: 10/07/2009] [Accepted: 10/07/2009] [Indexed: 10/20/2022]
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Wilhelm EA, Jesse CR, Bortolatto CF, Nogueira CW, Savegnago L. Antinociceptive and anti-allodynic effects of 3-alkynyl selenophene on different models of nociception in mice. Pharmacol Biochem Behav 2009; 93:419-25. [PMID: 19538987 DOI: 10.1016/j.pbb.2009.06.003] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2008] [Revised: 06/05/2009] [Accepted: 06/09/2009] [Indexed: 01/26/2023]
Abstract
In this study, antinociceptive and anti-hyperalgesic effects of 3-alkynyl selenophene (3-ASP) were evaluated in mice. Acute toxicity of 3-ASP (1-50 mg/kg, per oral) was investigated in mice. 3-ASP neither caused toxicity nor affects locomotor activity in the rota-rod test. 3-ASP did not change plasma aspartate (AST) and alanine aminotransferase (ALT) activities, urea and creatinine levels. 3-ASP caused a significant increase in tail-immersion and hot-plate response latencies time. 3-ASP inhibited early and late phases of nociception caused by intraplantar (i.pl.) injection of formalin. 3-ASP reduced nociception produced by i.pl. injection of glutamate, bradykinin, phorbol myristate acetate (PMA) and capsaicin in mice. Mechanical hyperalgesia induced by Freund's Complete Adjuvant (CFA) was attenuated by 3-ASP administration to mice (maximal inhibition of 42+/-11%). The anti-hyperalgesic effect of 3-ASP was maintained for up to 6 h. The antinociceptive effect of 3-ASP was not abolished by naloxone (5 mg/kg), discarding the involvement of opioidergic mechanism in this effect. These results indicate that 3-ASP at a dose range of 5-50 mg/kg was especially potent and produced systemic anti-hyperalgesic and antinociceptive actions in mice.
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Affiliation(s)
- Ethel A Wilhelm
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, RS, Brazil
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