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Rocha S, Silva J, Silva VLM, Silva AMS, Corvo ML, Freitas M, Fernandes E. Pyrazoles have a multifaceted anti-inflammatory effect targeting prostaglandin E 2, cyclooxygenases and leukocytes' oxidative burst. Int J Biochem Cell Biol 2024; 172:106599. [PMID: 38797495 DOI: 10.1016/j.biocel.2024.106599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 05/11/2024] [Accepted: 05/18/2024] [Indexed: 05/29/2024]
Abstract
Elevated levels of prostaglandin E2 have been implicated in the pathophysiology of various diseases. Anti-inflammatory drugs that act through the inhibition of cyclooxygenase enzymatic activity, thereby leading to the suppression of prostaglandin E2, are often associated with several side effects due to their non-specific inhibition of cyclooxygenase enzymes. Consequently, the targeted suppression of prostaglandin E2 production with innovative molecules and/or mechanisms emerges as a compelling therapeutic strategy for the treatment of inflammatory-related diseases. Therefore, in this study, a systematic analysis of 28 pyrazole derivatives was conducted to explore their potential mechanisms for reducing prostaglandin E2 levels. In this context, the evaluation of these derivatives extended to examining their capacity to reduce prostaglandin E2in vitro in human whole blood, inhibit cyclooxygenase-1 and cyclooxygenase-2 enzymes, modulate cyclooxygenase-2 expression, and suppress oxidative burst in human leukocytes. The results enabled the establishment of significant structure-activity relationships, elucidating key determinants for their activities. In particular, the 4-styryl group on the pyrazole moiety and the presence of chloro substitutions were identified as key determinants. Pyrazole 8 demonstrated the capacity to reduce prostaglandin E2 levels by downregulating cyclooxygenase-2 expression, and pyrazole-1,2,3-triazole 18 emerged as a dual-acting agent, inhibiting human leukocytes' oxidative burst and cyclooxygenase-2 activity. Furthermore, pyrazole 26 demonstrated effective reduction of prostaglandin E2 levels through selective cyclooxygenase-1 inhibition. These results underscore the multifaceted anti-inflammatory potential of pyrazoles, providing new insights into the substitutions and structural frameworks that are beneficial for the studied activity.
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Affiliation(s)
- Sónia Rocha
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto 4050-313, Portugal
| | - Jorge Silva
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto 4050-313, Portugal
| | - Vera L M Silva
- LAQV, REQUIMTE, Department of Chemistry, University of Aveiro, Aveiro 3810-193, Portugal
| | - Artur M S Silva
- LAQV, REQUIMTE, Department of Chemistry, University of Aveiro, Aveiro 3810-193, Portugal
| | - M Luísa Corvo
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, Lisbon 1649-003, Portugal
| | - Marisa Freitas
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto 4050-313, Portugal.
| | - Eduarda Fernandes
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto 4050-313, Portugal.
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2
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Hayden H, Klopf J, Ibrahim N, Knöbl V, Sotir A, Mekis R, Nowikovsky K, Eilenberg W, Neumayer C, Brostjan C. Quantitation of oxidized nuclear and mitochondrial DNA in plasma samples of patients with abdominal aortic aneurysm. Free Radic Biol Med 2023; 206:94-105. [PMID: 37353175 DOI: 10.1016/j.freeradbiomed.2023.06.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 06/06/2023] [Accepted: 06/15/2023] [Indexed: 06/25/2023]
Abstract
There is accumulating evidence that pro-inflammatory features are inherent to mitochondrial DNA and oxidized DNA species. 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodGuo) is the most frequently studied oxidatively generated lesion. Modified DNA reaches the circulation upon cell apoptosis, necrosis or neutrophil extracellular trap (NET) formation. Standard chromatography-based techniques for the assessment of 8-oxodGuo imply degradation of DNA to a single base level, thus precluding the attribution to a nuclear or mitochondrial origin. We therefore aimed to establish a protocol for the concomitant assessment of oxidized mitochondrial and nuclear DNA from human plasma samples. We applied immunoprecipitation (IP) for 8-oxodGuo to separate oxidized from non-oxidized DNA species and subsequent quantitative polymerase chain reaction (qPCR) to assign them to their subcellular source. The IP procedure failed when applied directly to plasma samples, i.e. isotype control precipitated similar amounts of DNA as the specific 8-oxodGuo antibody. In contrast, DNA isolation from plasma prior to the IP process provided assay specificity with little impact on DNA oxidation status. We further optimized sensitivity and efficiency of qPCR analysis by reducing amplicon length and targeting repetitive nuclear DNA elements. When the established protocol was applied to plasma samples of abdominal aortic aneurysm (AAA) patients and control subjects, the AAA cohort displayed significantly elevated circulating non-oxidized and total nuclear DNA and a trend for increased levels of oxidized mitochondrial DNA. An enrichment of mitochondrial versus nuclear DNA within the oxidized DNA fraction was seen for AAA patients. Regarding the potential source of circulating DNA, we observed a significant correlation of markers of neutrophil activation and NET formation with nuclear DNA, independent of oxidation status. Thus, the established method provides a tool to detect and distinguish the release of oxidized nuclear and mitochondrial DNA in human plasma and offers a refined biomarker to monitor disease conditions of pro-inflammatory cell and tissue destruction.
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Affiliation(s)
- Hubert Hayden
- Department of General Surgery, Division of Vascular Surgery, Medical University of Vienna and University Hospital Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Johannes Klopf
- Department of General Surgery, Division of Vascular Surgery, Medical University of Vienna and University Hospital Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Nahla Ibrahim
- Department of General Surgery, Division of Vascular Surgery, Medical University of Vienna and University Hospital Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Viktoria Knöbl
- Department of General Surgery, Division of Vascular Surgery, Medical University of Vienna and University Hospital Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Anna Sotir
- Department of General Surgery, Division of Vascular Surgery, Medical University of Vienna and University Hospital Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Ronald Mekis
- Institute of Physiology, Pathophysiology and Biophysics, Unit of Physiology and Biophysics, University of Veterinary Medicine, 1210, Vienna, Austria
| | - Karin Nowikovsky
- Institute of Physiology, Pathophysiology and Biophysics, Unit of Physiology and Biophysics, University of Veterinary Medicine, 1210, Vienna, Austria
| | - Wolf Eilenberg
- Department of General Surgery, Division of Vascular Surgery, Medical University of Vienna and University Hospital Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Christoph Neumayer
- Department of General Surgery, Division of Vascular Surgery, Medical University of Vienna and University Hospital Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Christine Brostjan
- Department of General Surgery, Division of Vascular Surgery, Medical University of Vienna and University Hospital Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.
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Wei JY, Hu MY, Chen XQ, Wei JS, Chen J, Qin XK, Lei FY, Zou JS, Zhu SQ, Qin YH. Hypobaric Hypoxia Aggravates Renal Injury by Inducing the Formation of Neutrophil Extracellular Traps through the NF-κB Signaling Pathway. Curr Med Sci 2023:10.1007/s11596-023-2744-3. [PMID: 37264195 DOI: 10.1007/s11596-023-2744-3] [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: 09/06/2022] [Accepted: 11/24/2022] [Indexed: 06/03/2023]
Abstract
OBJECTIVE The hypersensitivity of the kidney makes it susceptible to hypoxia injury. The involvement of neutrophil extracellular traps (NETs) in renal injury resulting from hypobaric hypoxia (HH) has not been reported. In this study, we aimed to investigate the expression of NETs in renal injury induced by HH and the possible underlying mechanism. METHODS A total of 24 SD male rats were divided into three groups (n=8 each): normal control group, hypoxia group and hypoxia+pyrrolidine dithiocarbamate (PDTC) group. Rats in hypoxia group and hypoxia+PDTC group were placed in animal chambers with HH which was caused by simulating the altitude at 7000 meters (oxygen partial pressure about 6.9 kPa) for 7 days. PDTC was administered at a dose of 100 mg/kg intraperitoneally once daily for 7 days. Pathological changes of the rat renal tissues were observed under a light microscope; the levels of serum creatinine (SCr), blood urea nitrogen (BUN), cell-free DNA (cf-DNA) and reactive oxygen species (ROS) were measured; the expression levels of myeloperoxidase (MPO), citrullinated histone H3 (cit-H3), B-cell lymphoma 2 (Bcl-2), Bax, nuclear factor kappa B (NF-κB) p65 and phospho-NF-κB p65 (p-NF-κB p65) in rat renal tissues were detected by qRT-qPCR and Western blotting; the localization of NF-κB p65 expression in rat renal tissues was observed by immunofluorescence staining and the expression changes of NETs in rat renal tissues were detected by multiplex fluorescence immunohistochemical staining. RESULTS After hypoxia, the expression of NF-κB protein in renal tissues was significantly increased, the levels of SCr, BUN, cf-DNA and ROS in serum were significantly increased, the formation of NETs in renal tissues was significantly increased, and a large number of tubular dilatation and lymphocyte infiltration were observed in renal tissues. When PDTC was used to inhibit NF-κB activation, NETs formation in renal tissue was significantly decreased, the expression level of Bcl-2 in renal tissues was significantly increased, the expression level of Bax was significantly decreased, and renal injury was significantly alleviated. CONCLUSION HH induces the formation of NETs through the NF-κB signaling pathway, and it promotes apoptosis and aggravates renal injury by decreasing Bcl-2 and increasing Bax expression.
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Affiliation(s)
- Jun-Yu Wei
- Department of Pediatrics, the First Affiliated Hospital, Guangxi Medical University, Nanning, 530021, China
| | - Miao-Yue Hu
- Department of Pediatrics, the First Affiliated Hospital, Guangxi Medical University, Nanning, 530021, China
| | - Xiu-Qi Chen
- Department of Pediatrics, the First Affiliated Hospital, Guangxi Medical University, Nanning, 530021, China
| | - Jin-Shuang Wei
- Department of Pediatrics, the First Affiliated Hospital, Guangxi Medical University, Nanning, 530021, China
| | - Jie Chen
- Department of Pediatrics, the First Affiliated Hospital, Guangxi Medical University, Nanning, 530021, China
| | - Xuan-Kai Qin
- Department of Pediatrics, the First Affiliated Hospital, Guangxi Medical University, Nanning, 530021, China
| | - Feng-Ying Lei
- Department of Pediatrics, the First Affiliated Hospital, Guangxi Medical University, Nanning, 530021, China
| | - Jia-Sen Zou
- Children's Hospital of Chongqing Medical University, Chongqing, 400015, China
| | - Shi-Qun Zhu
- Shenzhen Children's Hospital, Shenzhen, 518034, China
| | - Yuan-Han Qin
- Department of Pediatrics, the First Affiliated Hospital, Guangxi Medical University, Nanning, 530021, China.
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4
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Kaur C, Mandal D. The Scavenging Mechanism of Aminopyrines towards Hydroxyl Radical: A Computational Mechanistic and Kinetics Investigation. COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2022.113973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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5
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Hu J, Luo Y, Hou M, Qi JJ, Liang LL, Li WG. Synthesis, Structure, and Anticancer Studies of Cu (II) and Ni (II) Complexes Based on (5‐Chlorosalicylaldehyde)‐4‐Aminoantipyrine Schiff‐base. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jing Hu
- School of Basic Courses Bengbu Medical College Bengbu China
- Anhui Province Key Laboratory of Translational Cancer Research Bengbu Medical College Bengbu China
| | - Yun Luo
- School of Basic Courses Bengbu Medical College Bengbu China
| | - Min Hou
- School of Basic Courses Bengbu Medical College Bengbu China
| | - Jia Jia Qi
- School of Basic Courses Bengbu Medical College Bengbu China
- Anhui Province Key Laboratory of Translational Cancer Research Bengbu Medical College Bengbu China
| | - Li Li Liang
- School of Basic Courses Bengbu Medical College Bengbu China
- Anhui Province Key Laboratory of Translational Cancer Research Bengbu Medical College Bengbu China
| | - Wen Ge Li
- School of Basic Courses Bengbu Medical College Bengbu China
- Anhui Province Key Laboratory of Translational Cancer Research Bengbu Medical College Bengbu China
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6
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Arabahmadi R. Antipyrine-based Schiff base as fluorogenic chemosensor for recognition of Zn2+, Cu2+ and H2PO4− in aqueous media by comparator, half subtractor and integrated logic circuits. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2021.113762] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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7
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Johnson J, Jaggers RM, Gopalkrishna S, Dahdah A, Murphy AJ, Hanssen NMJ, Nagareddy PR. Oxidative Stress in Neutrophils: Implications for Diabetic Cardiovascular Complications. Antioxid Redox Signal 2022; 36:652-666. [PMID: 34148367 PMCID: PMC9057880 DOI: 10.1089/ars.2021.0116] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Significance: Neutrophil behavior and function are altered by hyperglycemia associated with diabetes. Aberrant activation by hyperglycemia causes neutrophils to respond with increased production of reactive oxidative species (ROS). Excess ROS, a signature of primed neutrophils, can intracellularly induce neutrophils to undergo NETosis, flooding surrounding tissues with ROS and damage-associated molecular patterns such as S100 calcium binding proteins (S100A8/A9). The cargo associated with NETosis also attracts more immune cells to the site and signals for increased immune cell production. This inflammatory response to diabetes can accelerate other associated conditions such as atherosclerosis and thrombosis, increasing the risk of cardiovascular disease. Recent Advances: As the prevalence of diabetes continues to grow, more attention has been focused on developing effective treatment options. Currently, glucose-lowering medications and insulin injections are the most widely utilized treatments. As the disease progresses, medications are usually stacked to maintain glucose at desired target levels, but this approach often fails and does not effectively reduce cardiovascular risk, even with the latest drugs. Critical Issues: Despite advances in treatment options, diabetes remains a progressive disease as glucose lowering alone has failed to abolish the associated cardiovascular complications. Future Directions: Significant interest is being generated in developing treatments that do not solely focus on glucose control but rather mitigate glucotoxicity. Several therapies have been proposed that target cellular dysfunction downstream of hyperglycemia, such as using antioxidants to scavenge ROS, inhibiting ROS production from NOX, and suppressing neutrophil release of S100A8/A9 proteins. Antioxid. Redox Signal. 36, 652-666.
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Affiliation(s)
- Jillian Johnson
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Robert M Jaggers
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Sreejit Gopalkrishna
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Albert Dahdah
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Andrew J Murphy
- Division of Immunometabolism, Baker Heart and Diabetes Institute, Melbourne, Australia
| | - Nordin M J Hanssen
- Amsterdam Diabetes Centrum, Internal and Vascular Medicine, Amsterdam UMC, Amsterdam, Netherlands
| | - Prabhakara R Nagareddy
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
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8
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Brings C, Fröbel J, Cadeddu P, Germing U, Haas R, Gattermann N. Impaired formation of neutrophil extracellular traps in patients with MDS. Blood Adv 2022; 6:129-137. [PMID: 34653237 PMCID: PMC8753191 DOI: 10.1182/bloodadvances.2021005721] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 09/22/2021] [Indexed: 11/20/2022] Open
Abstract
Neutrophil extracellular traps (NETs) are networks of extracellular fibers primarily composed of DNA and histone proteins, which bind pathogens. We investigated NET formation in 12 patients with myelodysplastic syndrome (MDS) and 15 age-adjusted normal controls after stimulation with phorbol-12-myristate-13-acetate (PMA). Histones and neutrophil elastase were visualized by immunostaining. Since NET formation is triggered by reactive oxygen species (ROS), mainly produced by reduced NADP-oxidase and myeloperoxidase (MPO), ROS were analyzed by flow cytometry using hydroethidine, 3'-(p-aminophenyl) fluorescein, and 3'-(hydroxyphenyl) fluorescein. On fluorescence microscopy, PMA-stimulated MDS neutrophils generated fewer NETs than controls (stimulated increase from 17% to 67% vs 17% to 85%) (P = .02) and showed less cellular swelling (P = .04). The decrease in mean fluorescence intensity (MFI) of 4',6-diamidino-2-phenylindole, indicating chromatin decondensation, was significantly less in MDS neutrophils than controls (ΔMFI 3467 vs ΔMFI 4687, P = .03). In addition, the decrease in MFI for fluorescein isothiocyanate, indicating release of neutrophil elastase from cytoplasmic granules, was diminished in patients with MDS (P = .00002). On flow cytometry, less cell swelling after PMA (P = .02) and a smaller decrease in granularity after H2O2 stimulation (P = .002) were confirmed. PMA-stimulated ROS production and oxidative burst activity did not reveal significant differences between MDS and controls. However, inhibition of MPO activity was more easily achieved in patients with MDS (P = .01), corroborating the notion of a partial MPO defect. We conclude that NET formation is significantly impaired in MDS neutrophils. Although we found abnormalities of MPO-dependent generation of hypochloride, impaired ROS production may not be the only cause of deficient NETosis in MDS.
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Affiliation(s)
- Carolin Brings
- Department of Vascular and Endovascular Surgery, Heinrich Heine University, Düsseldorf, Germany
| | - Julia Fröbel
- Department of Immunology, Leibniz Institute on Aging - Fritz Lipmann Institute, Jena, Germany; and
| | - Patrick Cadeddu
- Department of Hematology, Oncology and Clinical Immunology, Heinrich Heine University, Düsseldorf, Germany
| | - Ulrich Germing
- Department of Hematology, Oncology and Clinical Immunology, Heinrich Heine University, Düsseldorf, Germany
| | - Rainer Haas
- Department of Hematology, Oncology and Clinical Immunology, Heinrich Heine University, Düsseldorf, Germany
| | - Norbert Gattermann
- Department of Hematology, Oncology and Clinical Immunology, Heinrich Heine University, Düsseldorf, Germany
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9
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Marchetti F, Pettinari R, Verdicchio F, Tombesi A, Scuri S, Xhafa S, Olivieri L, Pettinari C, Choquesillo-Lazarte D, García-García A, Rodríguez Diéguez A, Galindo A. Role of hydrazone substituents in determining the nuclearity and antibacterial activity of Zn(II) complexes with pyrazolone-based hydrazones. Dalton Trans 2022; 51:14165-14181. [DOI: 10.1039/d2dt02430f] [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
Hydrazones and their metal derivatives are very important compounds in medicinal chemistry due to their reported variety of biological activities, such as antibacterial, antifungal and anticancer action. Five hydrazone-pyrazolone ligands...
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10
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Sonowal P, Bhorali P, Sultana S, Gogoi S. Pd(ii)-Catalyzed regioselective functionalization of antipyrines: synthesis of pyrazolono-maleimides and pyrazolono-quinones. Org Biomol Chem 2021; 19:5333-5341. [PMID: 34042935 DOI: 10.1039/d1ob00819f] [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
A Pd(ii)-catalyzed direct functionalization reaction of the 4Csp2-H bond of antipyrine derivatives is reported. This metal-catalyzed reaction of antipyrines with maleimides provided an easy and efficient access to biologically important pyrazolonomaleimides. This catalytic system is also applicable for C-4 functionalization of the antipyrine ring with quinone derivatives.
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Affiliation(s)
- Priya Sonowal
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, AcSIR, Ghaziabad-201002, India.
| | - Pratiksha Bhorali
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, AcSIR, Ghaziabad-201002, India.
| | - Sabera Sultana
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, AcSIR, Ghaziabad-201002, India.
| | - Sanjib Gogoi
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, AcSIR, Ghaziabad-201002, India.
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11
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Sousa A, Lucas M, Ribeiro D, Correia CM, Silva VLM, Silva AMS, Fernandes E, Freitas M. Chalcones as Modulators of Neutrophil Oxidative Burst under Physiological and High Glucose Conditions. JOURNAL OF NATURAL PRODUCTS 2020; 83:3131-3140. [PMID: 33006891 DOI: 10.1021/acs.jnatprod.0c00728] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Several epidemiological studies indicate that neutrophils, under hyperglycemic conditions, are involved in the perpetuation of the inflammatory status, a characteristic of diabetes mellitus, leading to the production of prodigious quantities of reactive species and the release of neutrophil extracellular traps (NETs). Accordingly, our aim was to study the ability of a panel of 25 structurally related chalcones to modulate human neutrophil oxidative burst and the production of NETs under physiological and high glucose conditions. In general, all chalcones presented similar effects under physiological and high glucose conditions. 2',4-Dihydroxy-3-methoxychalcone (3), here studied for the first time, was the most active (IC50 ≤ 5 μM) on the inhibition of neutrophil oxidative burst, showing the importance of the presence of hydroxy substituents at the C-2' and C-4 positions of the A and B rings, respectively, and a 3-methoxy substituent at B ring of the chalcone scaffold. In the present experimental conditions, NETs release only occurred under high glucose levels. The pentahydroxylated chalcone 1 was the only one that was able to modulate the NETs release. This study provided important considerations about the chalcones' scaffold and their modulatory effect on human neutrophil activities at physiological and high glucose conditions, evidencing their potential use as complementary antidiabetic agents.
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Affiliation(s)
- Adelaide Sousa
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto 4050-313, Portugal
| | - Mariana Lucas
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto 4050-313, Portugal
| | - Daniela Ribeiro
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto 4050-313, Portugal
| | - Catarina M Correia
- QOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Aveiro 3810-193, Portugal
| | - Vera L M Silva
- QOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Aveiro 3810-193, Portugal
| | - Artur M S Silva
- QOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Aveiro 3810-193, Portugal
| | - Eduarda Fernandes
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto 4050-313, Portugal
| | - Marisa Freitas
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto 4050-313, Portugal
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12
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Tan F, Su S, Liu Z. Green synthesis and antifungal activities of novel 3‐(trifluoromethyl)‐4,
5‐dihydro‐1
H
‐furo[2,3‐
c
]pyrazole derivatives. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3998] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Fangshun Tan
- Medical College of China Three Gorges University Yichang 443002 China
| | - Shennan Su
- Research Institute of Zhejiang University‐Taizhou Taizhou 318000 China
| | - Zhenzhong Liu
- Research Institute of Zhejiang University‐Taizhou Taizhou 318000 China
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13
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Anion mediated switching from mono- to polymer structure in copper(II) complexes with 4,6-dimethylpyrimidinylhydrazone 1-phenyl-3-methyl-4-formylpyrazol-5-one. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2019.119284] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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14
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Differential effects of Th17 cytokines during the response of neutrophils to Burkholderia cenocepacia outer membrane protein A. Cent Eur J Immunol 2020; 44:403-413. [PMID: 32140053 PMCID: PMC7050059 DOI: 10.5114/ceji.2019.92800] [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: 05/17/2017] [Accepted: 08/28/2017] [Indexed: 12/11/2022] Open
Abstract
T helper 17 cells are involved in the immunopathology of cystic fibrosis. They play a key role in recruitment of neutrophils, which is the first line of defence against bacteria. Additionally, Burkholderia cenocepacia outer membrane protein A (OmpA) BCAL2958 is considered a potential protective epitope for vaccine development. The present study aimed to investigate the neutrophil response to OmpA in the presence of Th17 cytokines, IL-17 and IL-22 at different times of activation. Neutrophils were isolated from whole blood of healthy volunteers and activated with OmpA in the presence of IL-17, IL-22 or both cytokines together. Supernatant was collected after 1 h, 2 h, 4 h, 8 h, and 12 h. Neutrophil activation was assessed by measuring MPO, TNF-α, elastase, hydrogen peroxide, catalase and NO. The results revealed that the combination of IL-17 and IL-22 cytokines induced the release of NE, catalase, H2O2 and TNF-α from neutrophils activated with Burkholderia OmpA at late stages of activation. However, IL-22 alone or IL-17 alone decreased the myeloperoxidase (MPO), catalase and NE levels at early stages of neutrophil activation. The presence of IL-17 alone led to a significant increase in TNF-α level after 1 h and 12 h. However, the presence of IL-22 alone led to a significant increase in TNF-α level after only 1 h but a significant decrease after 8 h of activation was observed as compared to OmpA stimulated neutrophils. In conclusion, Th17 cytokines IL-17 and IL-22, have differential effects during the neutrophil response to Burkholderia OmpA.
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Sahoo J, Sahoo CR, Nandini Sarangi PK, Prusty SK, Padhy RN, Paidesetty SK. Molecules with versatile biological activities bearing antipyrinyl nucleus as pharmacophore. Eur J Med Chem 2020; 186:111911. [DOI: 10.1016/j.ejmech.2019.111911] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 11/06/2019] [Accepted: 11/24/2019] [Indexed: 02/06/2023]
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16
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Liu L, Qiao J, Zhang H, Qi L. Separation of antipyretic analgesics by open tubular capillary electrochromatography with homopolymer coatings. J Sep Sci 2019; 42:3016-3022. [DOI: 10.1002/jssc.201900516] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 07/08/2019] [Accepted: 07/10/2019] [Indexed: 01/20/2023]
Affiliation(s)
- Lili Liu
- College of Chemistry and Environmental ScienceHebei University Baoding P. R. China
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Analytical Chemistry for Living BiosystemsInstitute of ChemistryChinese Academy of Sciences Beijing P. R. China
| | - Juan Qiao
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Analytical Chemistry for Living BiosystemsInstitute of ChemistryChinese Academy of Sciences Beijing P. R. China
- School of Chemical SciencesUniversity of Chinese Academy of Sciences Beijing P. R. China
| | - Hongyi Zhang
- College of Chemistry and Environmental ScienceHebei University Baoding P. R. China
| | - Li Qi
- Beijing National Laboratory for Molecular SciencesKey Laboratory of Analytical Chemistry for Living BiosystemsInstitute of ChemistryChinese Academy of Sciences Beijing P. R. China
- School of Chemical SciencesUniversity of Chinese Academy of Sciences Beijing P. R. China
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17
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Juliano Oliveira R, Pereira FPAN, Silveira IOMFD, Lima RVD, Berno CR, Pesarini JR, Antoniolli-Silva ACMB, Monreal ACD, Adilson B, Lima DPD, Gomes RDS. Assessment of the toxicogenic effects and cell death potential of the ester (Z)-methyl 4-((1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)amino)-4-oxobut-2-anoate in combination with cisplatin, cyclophosphamide and doxorubicin. Genet Mol Biol 2019; 42:399-410. [PMID: 31259359 PMCID: PMC6726153 DOI: 10.1590/1678-4685-gmb-2017-0279] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 07/17/2018] [Indexed: 12/03/2022] Open
Abstract
Despite rapid advances in both the early detection and treatment of cancer, the
mortality from this disease remains high, which justifies the development of new
products that are more selective and effective and have fewer side effects.
Accordingly, a novel ester was synthesized that contains two pharmacophores with
important biological activities: (I) 4-aminoantipyrine, which has
anti-inflammatory and antioxidant effects, and (II) the pharmacophore
1,4-dioxo-butenyl, which has cytotoxic activity. When administered alone, this
compound is non-genotoxic, and it does not cause an increasing in splenic
phagocytosis. Nevertheless, it can induce cell death. When administered in
combination with commercial chemotherapeutic agents, such as doxorubicin,
cisplatin, and cyclophosphamide, the ester shows antigenotoxic activity and
decreases phagocytosis and reduces the potential to cause cell death. These
results indicate that the compound should not be used in combination with
chemotherapeutic agents that exert their effect through DNA damage, an important
feature of antitumor drugs.
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Affiliation(s)
- Rodrigo Juliano Oliveira
- Centro de Estudos em Célula Tronco, Terapia Celular e Genética Toxicológica, Hospital Universitário "Maria Aparecida Pedrossian", Empresa Brasileira de Serviços Hospitalares, Campo Grande, MS, Brazil.,Programa de Mestrado em Farmácia, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil.,Programa de Pós-graduação em Saúde e Desenvolvimento na Região Centro-Oeste, Faculdade de Medicina "Dr. Hélio Mandetta", Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil.,Programa de Pós-graduação em Genética e Biologia Molecular, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, PR, Brazil
| | - Fabrícia Paniago Ajala Nery Pereira
- Centro de Estudos em Célula Tronco, Terapia Celular e Genética Toxicológica, Hospital Universitário "Maria Aparecida Pedrossian", Empresa Brasileira de Serviços Hospitalares, Campo Grande, MS, Brazil.,Programa de Mestrado em Farmácia, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
| | | | - Ricardo Vieira de Lima
- Programa de Pós-graduação em Química, Instituto de Química, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil.,Laboratório de Síntese e Modificação Molecular, Faculdade de Ciências Exatas e Tecnologias, Universidade Federal da Grande Dourados, Dourados, MS, Brazil
| | - Claudia Rodrigues Berno
- Centro de Estudos em Célula Tronco, Terapia Celular e Genética Toxicológica, Hospital Universitário "Maria Aparecida Pedrossian", Empresa Brasileira de Serviços Hospitalares, Campo Grande, MS, Brazil.,Programa de Mestrado em Farmácia, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - João Renato Pesarini
- Centro de Estudos em Célula Tronco, Terapia Celular e Genética Toxicológica, Hospital Universitário "Maria Aparecida Pedrossian", Empresa Brasileira de Serviços Hospitalares, Campo Grande, MS, Brazil.,Programa de Pós-graduação em Saúde e Desenvolvimento na Região Centro-Oeste, Faculdade de Medicina "Dr. Hélio Mandetta", Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil.,Graduação em Biomedicina, Universidade Católica Dom Bosco, Campo Grande, MS, Brazil
| | - Andréia Conceição Milan Brochado Antoniolli-Silva
- Centro de Estudos em Célula Tronco, Terapia Celular e Genética Toxicológica, Hospital Universitário "Maria Aparecida Pedrossian", Empresa Brasileira de Serviços Hospitalares, Campo Grande, MS, Brazil.,Programa de Pós-graduação em Saúde e Desenvolvimento na Região Centro-Oeste, Faculdade de Medicina "Dr. Hélio Mandetta", Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Antônio Carlos Duenhas Monreal
- Mestrado em Ciências Veterinárias, Faculdade de Medicina Veterinária e Zootecnia, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Beatriz Adilson
- Programa de Mestrado em Farmácia, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil.,Programa de Pós-graduação em Química, Instituto de Química, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Dênis Pires de Lima
- Programa de Mestrado em Farmácia, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil.,Programa de Pós-graduação em Química, Instituto de Química, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Roberto da Silva Gomes
- Programa de Pós-graduação em Química, Instituto de Química, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil.,Laboratório de Síntese e Modificação Molecular, Faculdade de Ciências Exatas e Tecnologias, Universidade Federal da Grande Dourados, Dourados, MS, Brazil.,Chemistry and Chemical Biology Department, Harvard University, Cambridge, MA, USA
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18
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Pasha GF, Asghari S, Tajbakhsh M, Mohseni M. Synthesis and antimicrobial evaluation of some new bicyclopyrazolone‐based thiopyran ring systems. J CHIN CHEM SOC-TAIP 2019. [DOI: 10.1002/jccs.201800276] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
| | - Sakineh Asghari
- Department of Organic Chemistry, Faculty of ChemistryUniversity of Mazandaran Babolsar Iran
- Nano and Biotechnology Research GroupUniversity of Mazandaran Babolsar Iran
| | - Mahmood Tajbakhsh
- Department of Organic Chemistry, Faculty of ChemistryUniversity of Mazandaran Babolsar Iran
| | - Mojtaba Mohseni
- Department of Microbiology, Faculty of ScienceUniversity of Mazandaran Babolsar Iran
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19
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Sun BB, Zhang JQ, Chen JB, Fan WT, Yu JQ, Hu JM, Wang XW. Stereoselective synthesis of spirocyclohexadiene-pyrazolones via organic base and/or hydrogen bonding assisted [3 + 3] annulation reactions. Org Chem Front 2019. [DOI: 10.1039/c8qo01391h] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A DABCO and a chiral hydrogen bonding-assisted catalyzed [3 + 3] cycloaddition of α-arylidene pyrazolinones and 2-benzylidenemalononitriles provided spirocyclohexadiene-pyrazolones with all-carbon quaternary centers in good yields with excellent ees and moderate to high drs.
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Affiliation(s)
- Bing-Bing Sun
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Jun-Qi Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Jun-Bo Chen
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Wei-Tai Fan
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Jie-Qiang Yu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Jia-Ming Hu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Xing-Wang Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
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20
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Tomić M, Pecikoza U, Micov A. Non-opioid analgesics in contemporary treatment of pain. ARHIV ZA FARMACIJU 2019. [DOI: 10.5937/arhfarm1901021t] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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21
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Synthesis and structural characterization of some novel methoxyamino derivatives with acid-base and redox behavior. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.06.114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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22
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Synthesis, Modeling Study and Antioxidants Activity of New Heterocycles Derived from 4-Antipyrinyl-2-Chloroacetamidothiazoles. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8112128] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The present work reports the preparation of twelve new heterocyclic scaffolds containing an antipyrinyl-thiazole hybrid through the reaction of 4-antipyrinyl-2-chloroacetamido-thiazoles 1 and 6 with various types of nucleophiles, namely; ethyl thioglycolate, 2-mercaptobenzothiazole, 2-mercaptobenzoxazole, ammonium thiocyanate, malononitrile, and salicylaldehyde. The constructed compounds were characterized by conventional spectroscopic techniques (IR, 1H NMR, 13C NMR, and mass analysis). A DFT method (material studio package) was used to predict the geometry, bond lengths, bond angles, and dipole moments as well as other global chemical reactivities of the constructed antipyrinyl-thiazole compounds. Also, their semi-core pseudopods calculations (dspp) were carried out with DNP (double numerical basis sets plus polarization functional) to predict the properties of materials. In addition, the antioxidant activity of these antipyrinyl-thiazole scaffolds has been screened by the ABTS method. The results indicated that 2-(4-antipyrinylthiazolylamino)-5-substituitedbenzylidene-thiazol-4(5H)-ones 10b and 10c exhibited the best antioxidant activity with a percentage inhibition of 85.74% and 83.51%, respectively.
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23
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Ahmad Sheikh A, Kanwar Hooda O, Kumar Dang A. Development of enzyme-linked immunosorbent assay for early pregnancy diagnosis in cattle. Anim Reprod Sci 2018; 197:126-133. [DOI: 10.1016/j.anireprosci.2018.08.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Revised: 08/06/2018] [Accepted: 08/15/2018] [Indexed: 01/31/2023]
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24
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Sheikh AA, Hooda O, Kalyan A, Kamboj A, Mohammed S, Alhussien M, Reddi S, Shimray PG, Rautela A, Pandita S, Kapila S, De S, Dang A. Interferon-tau stimulated gene expression: A proxy to predict embryonic mortality in dairy cows. Theriogenology 2018; 120:61-67. [DOI: 10.1016/j.theriogenology.2018.07.028] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 07/19/2018] [Accepted: 07/23/2018] [Indexed: 10/28/2022]
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25
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Tao Z, Gomha SM, Badrey MG, El-Idreesy TT, Eldebss TMA. Novel 4-Heteroaryl-antipyrines: Synthesis, Molecular Docking, and Evaluation as Potential Anti-breast Cancer Agents. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3305] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Ziqi Tao
- Nanjing University of Chinese Medicine; XuZhou Central Hospital; XuZhou China
| | - Sobhi M. Gomha
- Department of Chemistry, Faculty of Science; Cairo University; Giza 12613 Egypt
| | - Mohamed G. Badrey
- Department of Chemistry, Faculty of Science; Fayoum University; Fayoum 63514 Egypt
| | - Tamer T. El-Idreesy
- Department of Chemistry, Faculty of Science; Cairo University; Giza 12613 Egypt
- Department of Chemistry, School of Sciences and Engineering; The American University in Cairo; New Cairo 11835 Egypt
| | - Taha M. A. Eldebss
- Department of Chemistry, Faculty of Science; Cairo University; Giza 12613 Egypt
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26
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Kovalchukova OV, Abdulilla Abbas ATR, Strashnova SB, Strashnov PV. Tautomeric transformations and electronic structures of azopyrazolone dyes and their metal complexes. REV INORG CHEM 2018. [DOI: 10.1515/revic-2018-0007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThe features of molecular and electronic structures of complex compounds derived from azopyrazolone derivatives are reviewed. Despite the wide use of metal-containing azopyrazolone dyes for more than 1.5 centuries, little information on their molecular structure is found. Our recent researches allowed the introduction of new coordination modes of azopyrazolone derivatives at complexation with metals. Together with traditional bi- and tridentate coordination, the possibility of an N pyrazolone atom to be involved in coordination was also found. As a result, polymeric or polynuclear complexes were isolated and described by X-ray analysis, NMR, EPR, IR, and UV spectroscopy. The analysis of the interatomic distances in the organic anions indicated that azopyrazolone derivatives do not undergo significant azo-hydrazo tautomeric transformations at ionization and complexation despite strong shifts of the absorption bands in their IR and UV-VIS spectra.
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Affiliation(s)
- Olga V. Kovalchukova
- Peoples’ Friendship University (RUDN University), 6 Miklukho Maklaya Street, 117198 Moscow, Russia
- A.N. Kosygin Russian State University (Technology, Design, Art), 33(1) Sadovnicheskaya Street, 117997 Moscow, Russia
| | | | - Svetlana B. Strashnova
- Peoples’ Friendship University (RUDN University), 6 Miklukho Maklaya Street, 117198 Moscow, Russia
| | - Pavel V. Strashnov
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences (INEOS RAS), 28 Vavilova Street, 119991 Moscow, Russia
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27
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Sheikh AA, Hooda OK, Dang AK. Interferon tau stimulated gene expression and proinflammatory cytokine profile relative to insemination in dairy cows. BIOL RHYTHM RES 2018. [DOI: 10.1080/09291016.2018.1440777] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Aasif Ahmad Sheikh
- Lactation and Immuno-Physiology Laboratory, Animal Physiology Division, ICAR-National Dairy Research Institute, Karnal, India
| | - Om Kanwar Hooda
- Lactation and Immuno-Physiology Laboratory, Animal Physiology Division, ICAR-National Dairy Research Institute, Karnal, India
| | - Ajay Kumar Dang
- Lactation and Immuno-Physiology Laboratory, Animal Physiology Division, ICAR-National Dairy Research Institute, Karnal, India
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28
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Sheikh AA, Hooda OK, Dang AK. JAK3 and PI3K mediate bovine Interferon-tau stimulated gene expression in the blood neutrophils. J Cell Physiol 2018; 233:4885-4894. [PMID: 29194593 DOI: 10.1002/jcp.26296] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Accepted: 11/29/2017] [Indexed: 12/28/2022]
Abstract
Interferon tau, a 23 kDa trophoblast derived protein diffuses out from the uterus into the circulation and leads to the expression of IFNτ stimulated genes viz. ISG15 and OAS1 in blood neutrophils. The IFNτ pathway is species as well as tissue specific. To unsnarl the IFNτ downstream signaling pathway, the blood neutrophils were incubated simultaneously with 10 ng/ml of recombinant bovine interferon tau and the inhibitors of JAK2 (AG490), JAK3 (CP690550), p38 (SB202190), PI3K/Akt (LY294002), and MAPK/Erk (U0126) at specific doses for 4-hr duration. The IFNτ pathway was determined through real-time gene expression of ISG15 and OAS1; immunocytochemistry of ISG15; and Western blotting of ISG15, OAS1, pJAK3 and PI3K. The ISG15 and OAS1 expression decreased significantly (p < 0.001) in the presence of pJAK3 and PI3K inhibitors as compared to a positive control where only interferon tau was used. Immunocytochemistry revealed an attenuated ISG15 response while stimulating blood neutrophils with pJAK3 inhibitor (CP690550) and PI3K inhibitor (LY294002). Similarly, Western blot analysis of neutrophil protein fraction showed weak signals of ISG15, OAS1, pJAK3 and PI3K in the presence of pJAK3 and PI3K inhibitors. The expression profile, immunocytochemistry and western blot analysis revealed a JAK3 and PI3K mediated interferon-tau stimulated gene expression in blood neutrophils.
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Affiliation(s)
- Aasif Ahmad Sheikh
- Lactation and Immunophysiology Laboratory, Animal Physiology Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Om Kanwar Hooda
- Lactation and Immunophysiology Laboratory, Animal Physiology Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Ajay Kumar Dang
- Lactation and Immunophysiology Laboratory, Animal Physiology Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
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29
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Tomić M, Pecikoza U, Micov A. Non-opioid analgesics in contemporary treatment of pain. ARHIV ZA FARMACIJU 2018. [DOI: 10.5937/arhfarm1806021t] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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30
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Thupyai A, Pimpasri C, Yotphan S. DABCO-catalyzed silver-promoted direct thiolation of pyrazolones with diaryl disulfides. Org Biomol Chem 2018; 16:424-432. [DOI: 10.1039/c7ob02860a] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Efficient direct thiolation of N-substituted pyrazolones with diaryl disulfides was developed using a combination of DABCO and AgOAc to assist C–S bond formation.
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Affiliation(s)
- Akkharaphong Thupyai
- Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Department of Chemistry
- Faculty of Science
- Mahidol University
- Bangkok 10400
| | - Chaleena Pimpasri
- Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Department of Chemistry
- Faculty of Science
- Mahidol University
- Bangkok 10400
| | - Sirilata Yotphan
- Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Department of Chemistry
- Faculty of Science
- Mahidol University
- Bangkok 10400
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31
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Poplová M, Sovka P, Cifra M. Poisson pre-processing of nonstationary photonic signals: Signals with equality between mean and variance. PLoS One 2017; 12:e0188622. [PMID: 29216207 PMCID: PMC5720749 DOI: 10.1371/journal.pone.0188622] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 11/10/2017] [Indexed: 11/20/2022] Open
Abstract
Photonic signals are broadly exploited in communication and sensing and they typically exhibit Poisson-like statistics. In a common scenario where the intensity of the photonic signals is low and one needs to remove a nonstationary trend of the signals for any further analysis, one faces an obstacle: due to the dependence between the mean and variance typical for a Poisson-like process, information about the trend remains in the variance even after the trend has been subtracted, possibly yielding artifactual results in further analyses. Commonly available detrending or normalizing methods cannot cope with this issue. To alleviate this issue we developed a suitable pre-processing method for the signals that originate from a Poisson-like process. In this paper, a Poisson pre-processing method for nonstationary time series with Poisson distribution is developed and tested on computer-generated model data and experimental data of chemiluminescence from human neutrophils and mung seeds. The presented method transforms a nonstationary Poisson signal into a stationary signal with a Poisson distribution while preserving the type of photocount distribution and phase-space structure of the signal. The importance of the suggested pre-processing method is shown in Fano factor and Hurst exponent analysis of both computer-generated model signals and experimental photonic signals. It is demonstrated that our pre-processing method is superior to standard detrending-based methods whenever further signal analysis is sensitive to variance of the signal.
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Affiliation(s)
- Michaela Poplová
- Institute of Photonics and Electronics, the Czech Academy of Sciences, Chaberská 57, 182 51, Prague 8, Czechia
- Faculty of Electrical Engineering, Czech Technical University in Prague, Technická 2, 166 27, Prague 6, Czechia
| | - Pavel Sovka
- Faculty of Electrical Engineering, Czech Technical University in Prague, Technická 2, 166 27, Prague 6, Czechia
| | - Michal Cifra
- Institute of Photonics and Electronics, the Czech Academy of Sciences, Chaberská 57, 182 51, Prague 8, Czechia
- * E-mail:
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32
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Erukainure OL, Mesaik MA, Atolani O, Muhammad A, Chukwuma CI, Islam MS. Pectolinarigenin from the leaves of Clerodendrum volubile shows potent immunomodulatory activity by inhibiting T - cell proliferation and modulating respiratory oxidative burst in phagocytes. Biomed Pharmacother 2017; 93:529-535. [PMID: 28686966 DOI: 10.1016/j.biopha.2017.06.060] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Revised: 06/13/2017] [Accepted: 06/19/2017] [Indexed: 01/07/2023] Open
Abstract
There have been increasing interest in the use of plant-derived substance as immunomodulators for the treatment and management of inflammatory ailments. Clerodendrum volubile, a leafy vegetable is known for its folkloric applications in the treatments of several inflammatory related ailments, but with little scientific evidence. This study reports the isolation, structure elucidation and in vitro immunomodulatory potentials of pectolinarigenin from C. volubile leaves. The immunomodulatory potentials of the crude methanolic extract and fractions [n-hexane (Hex), dichloromethane (DCM), ethyl acetate (EtOAc) and n - butanol (BuOH)] were investigated on whole blood, neutrophil and macrophage phagocytic respiratory burst using luminol-amplified chemiluminescence technique. DCM fraction showed higher inhibitory activity on respiratory burst, indicating high suppressive immunomodulatory potency. The DCM fraction was further fractionated using a gravity column chromatography loaded with silica gel. The column was eluted with mixtures of Hex and DCM (92.5:7.5) in increasing order of polarity up to Hex: DCM (88:12) to afford 5,7-Dihydroxy-6,4'-dimethoxyflavone (pectolinarigenin). The structure of the compound was established using data obtained from 1H- and 13C NMR spectroscopies and mass spectrometry. The isolated flavone was investigated for its inhibitory activity of neutrophil phagocytes respiratory burst as well as T - Cell proliferation. The compound exhibited significant activities (at p <0.05) indicating high suppressive immunomodulatory potency. The potent suppressive effect of pectolinarigenin on polymorphonuclear neutrophils (PMNs) respiratory oxidative burst and T - cell proliferation suggests an immunomodulatory potential and pathway of the flavonoid.
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Affiliation(s)
- Ochuko L Erukainure
- Nutrition Toxicology Division, Federal Institute of Industrial Research, Lagos, Nigeria; Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan; Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, (Westville Campus), Durban 4000, South Africa.
| | - M Ahmed Mesaik
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan; Faculty of Medicine, University of Tabuk, P.O. Box 741, Tabuk 71491 Saudi Arabia
| | | | - Aliyu Muhammad
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan; Department of Biochemistry, Ahmadu Bello University, Zaria, Nigeria
| | - Chika I Chukwuma
- Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, (Westville Campus), Durban 4000, South Africa
| | - Md Shahidul Islam
- Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, (Westville Campus), Durban 4000, South Africa
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33
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Helal MH, Salem MA, Aly HM. Synthesis, Antimicrobial Activity and Molecular Modeling of Some Novel 5-Aminopyrazole, Pyrazolo[1,5-a
]pyrimidine, Bispyrazole and Bispyridone Derivatives Containing Antipyrinyl Moiety. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2858] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Mohamed Hamdy Helal
- Department of Chemistry, Faculty of Arts and Science; Northern Border University; Rafha Saudi Arabia
- Department of Chemistry, Faculty of Science; Al-Azhar University; PO Box 11284 Nasr City, Cairo Egypt
| | - Mohamed A. Salem
- Department of Chemistry, Faculty of Science; Al-Azhar University; PO Box 11284 Nasr City, Cairo Egypt
- Department of Chemistry, Faculty of Science and Arts; King Khalid University; Mohail Assir Saudi Arabia
| | - Hala Mohamed Aly
- Department of Chemistry, Faculty of Arts and Science; Northern Border University; Rafha Saudi Arabia
- Department of Chemistry, Faculty of Science (Girl's); Al-Azhar University; PO Box 11754 Nasr City, Cairo Egypt
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Cai MQ, Feng L, Zhang LQ. Transformation of aminopyrine in the presence of free available chlorine: Kinetics, products, and reaction pathways. CHEMOSPHERE 2017; 171:625-634. [PMID: 28056449 DOI: 10.1016/j.chemosphere.2016.12.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Revised: 12/06/2016] [Accepted: 12/07/2016] [Indexed: 06/06/2023]
Abstract
Aminopyrine (AMP) has been frequently detected in the aquatic environment. In this study, the transformation mechanism of AMP by free available chlorine (FAC) oxidation was investigated. The results showed that FAC reacted with AMP rapidly, and a 74% elimination was achieved for 1.30 μM AMP after 2 min at 14.08 μM FAC dose. AMP chlorination was strongly pH-dependent, and its reaction included second- and third-order kinetic processes. Three active FAC species, including chlorine monoxide (Cl2O), molecular chlorine (Cl2), and hypochlorous acid (HOCl), were observed to contribute to AMP degradation. The intrinsic rate constants of each FAC species with neutral (AMP0) and cation (AMP+) species were obtained by kinetic fitting. Cl2O exhibited the highest reactivity with AMP0 (kAMP0, Cl2O = (4.33 ± 1.4) × 109 M-1s-1). In addition, Cl2 showed high reactivity (106-107 M-1s-1) in the presence of chloride, compared with HOCl (kAMP+, HOCl = (5.73 ± 0.23) × 102 M-1s-1, kAMP0, HOCl = (9.68 ± 0.96) × 102 M-1s-1). At pH 6.15 and 14.08 μM FAC dose without chloride addition, the contribution of Cl2O reached to the maximum (33.3%), but in the whole pH range, HOCl was the main contributor (>66.6%) for AMP degradation. The significance of Cl2 was noticeable in water containing chloride. Moreover, 11 transformation products were identified, and the main transformation pathways included pyrazole ring breakage, hydroxylation, dehydrogenation, and halogenation.
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Affiliation(s)
- Mei-Quan Cai
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Li Feng
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China.
| | - Li-Qiu Zhang
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
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Ma W, Dong H, Wang D, Ackermann L. Late-Stage Diversification of Non-Steroidal Anti-Inflammatory Drugs by Transition Metal-Catalyzed C-H Alkenylations, Thiolations and Selenylations. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201600937] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Wenbo Ma
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, and Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics; Chengdu University; Chengdu 610052 People's Republic of China
| | - Hongbo Dong
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, and Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics; Chengdu University; Chengdu 610052 People's Republic of China
| | - Daoxin Wang
- College of Pharmacy and Biological Engineering; Chengdu University; Shiling, Chengdu People's Republic of China
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität; Tammannstraße 2 37077 Göttingen Germany
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Bigagli E, Cinci L, Paccosi S, Parenti A, D'Ambrosio M, Luceri C. Nutritionally relevant concentrations of resveratrol and hydroxytyrosol mitigate oxidative burst of human granulocytes and monocytes and the production of pro-inflammatory mediators in LPS-stimulated RAW 264.7 macrophages. Int Immunopharmacol 2016; 43:147-155. [PMID: 27998828 DOI: 10.1016/j.intimp.2016.12.012] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 11/21/2016] [Accepted: 12/08/2016] [Indexed: 11/19/2022]
Abstract
The health benefits of bio-active phenolic compounds have been largely investigated in vitro at concentrations which exceed those reachable in vivo. We investigated and compared the anti-inflammatory effects of resveratrol, hydroxytyrosol and oleuropein at physiologically relevant concentrations by using in vitro models of inflammation. Human granulocytes and monocytes were stimulated with phorbol myristate acetate (PMA) and the ability of resveratrol, hydroxytyrosol and oleuropein to inhibit the oxidative burst and CD11b expression was measured. Nitric oxide (NO), prostaglandin E2 (PGE2) levels, COX-2, iNOS, TNFα, IL-1β and miR-146a expression and activation of the transcription factor Nrf2 were evaluated in macrophages RAW 264.7 stimulated with LPS (1μg/ml) for 18h, exposed to resveratrol, hydroxytyrosol and oleuropein (5 and 10μM). Synergistic effects were explored as well, together with the levels of PGE2, COX-2 and IL-1β expression in macrophages after 6h of LPS stimulation. PGE2 and COX-2 expression were also assessed on human monocytes. All the tested compounds inhibited granulocytes oxidative burst in a concentration dependent manner and CD11b expression was also significantly counteracted by resveratrol and hydroxytyrosol. The measurement of oxidative burst in human monocytes produced similar effects being resveratrol more active. Hydroxytyrosol and resveratrol inhibited the production of NO and PGE2 but did not reduce iNOS, TNFα or IL-1β gene expression in LPS-stimulated RAW 264.7 for 18h. Resveratrol slightly decreased COX-2 expression after 18h but not after 6h, but reduced PGE2 levels after 6h. Resveratrol and hydroxytyrosol 10μM induced NRf2 nuclear translocation and reduced miR-146a expression in LPS treated RAW 264.7. Overall, we reported an anti-inflammatory effect of resveratrol and hydroxytyrosol at low, nutritionally relevant concentrations, involving the inhibition of granulocytes and monocytes activation, the modulation of miR-146a expression and the activation of Nrf2. A regular dietary intake of resveratrol and hydroxytyrosol may be a useful complementary strategy to control inflammatory diseases.
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Affiliation(s)
- Elisabetta Bigagli
- Department of Neuroscience, Psychology, Drug Research and Child Health, NEUROFARBA - Section of Pharmacology and Toxicology, University of Florence, Viale G. Pieraccini 6, Florence, Italy.
| | - Lorenzo Cinci
- Department of Neuroscience, Psychology, Drug Research and Child Health, NEUROFARBA - Section of Pharmacology and Toxicology, University of Florence, Viale G. Pieraccini 6, Florence, Italy
| | - Sara Paccosi
- Department of Health Sciences, Section of Clinical Pharmacology and Oncology, University of Florence, Viale G. Pieraccini 6, Florence, Italy
| | - Astrid Parenti
- Department of Health Sciences, Section of Clinical Pharmacology and Oncology, University of Florence, Viale G. Pieraccini 6, Florence, Italy
| | - Mario D'Ambrosio
- Department of Neuroscience, Psychology, Drug Research and Child Health, NEUROFARBA - Section of Pharmacology and Toxicology, University of Florence, Viale G. Pieraccini 6, Florence, Italy
| | - Cristina Luceri
- Department of Neuroscience, Psychology, Drug Research and Child Health, NEUROFARBA - Section of Pharmacology and Toxicology, University of Florence, Viale G. Pieraccini 6, Florence, Italy
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Sousa SA, Morad M, Feliciano JR, Pita T, Nady S, El-Hennamy RE, Abdel-Rahman M, Cavaco J, Pereira L, Barreto C, Leitão JH. The Burkholderia cenocepacia OmpA-like protein BCAL2958: identification, characterization, and detection of anti-BCAL2958 antibodies in serum from B. cepacia complex-infected Cystic Fibrosis patients. AMB Express 2016; 6:41. [PMID: 27325348 PMCID: PMC4916078 DOI: 10.1186/s13568-016-0212-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 06/10/2016] [Indexed: 12/15/2022] Open
Abstract
Respiratory infections by bacteria of the Burkholderia cepacia complex (Bcc) remain an important cause of morbidity and mortality among cystic fibrosis patients, highlighting the need for novel therapeutic strategies. In the present work we have studied the B. cenocepacia protein BCAL2958, a member of the OmpA-like family of proteins, demonstrated as highly immunogenic in other pathogens and capable of eliciting strong host immune responses. The encoding gene was cloned and the protein, produced as a 6× His-tagged derivative, was used to produce polyclonal antibodies. Bioinformatics analyses led to the identification of sequences encoding proteins with a similarity higher than 96 % to BCAL2958 in all the publicly available Bcc genomes. Furthermore, using the antibody it was experimentally demonstrated that this protein is produced by all the 12 analyzed strains from 7 Bcc species. In addition, results are also presented showing the presence of anti-BCAL2958 antibodies in sera from cystic fibrosis patients with a clinical record of respiratory infection by Bcc, and the ability of the purified protein to in vitro stimulate neutrophils. The widespread production of the protein by Bcc members, together with its ability to stimulate the immune system and the detection of circulating antibodies in patients with a documented record of Bcc infection strongly suggest that the protein is a potential candidate for usage in preventive therapies of infections by Bcc.
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Minocycline affects human neutrophil respiratory burst and transendothelial migration. Inflamm Res 2016; 66:107-109. [PMID: 27757474 DOI: 10.1007/s00011-016-0999-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 10/13/2016] [Accepted: 10/14/2016] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVE This study aimed at investigating the in vitro activity of minocycline and doxycycline on human polymorphonuclear (h-PMN) cell function. METHODS h-PMNs were isolated from whole venous blood of healthy subjects; PMN oxidative burst was measured by monitoring ROS-induced oxidation of luminol and transendothelial migration was studied by measuring PMN migration through a monolayer of human umbilical vein endothelial cells. Differences between multiple groups were determined by ANOVA followed by Tukey's multiple comparison test; Student's t test for unpaired data for two groups. RESULTS Minocycline (1-300 µM) concentration dependently and significantly inhibited oxidative burst of h-PMNs stimulated with 100 nM fMLP. Ten micromolar concentrations, which are superimposable to C max following a standard oral dose of minocycline, promoted a 29.8 ± 4 % inhibition of respiratory burst (P < 0.001; n = 6). Doxycycline inhibited ROS production with a lesser extent and at higher concentrations. 10-100 µM minocycline impaired PMN transendothelial migration, with maximal effect at 100 µM (42.5 ± 7 %, inhibition, n = 5, P < 0.001). CONCLUSIONS These results added new insight into anti-inflammatory effects of minocycline exerted on innate immune h-PMN cell function.
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Flowers of Clerodendrum volubile exacerbate immunomodulation by suppressing phagocytic oxidative burst and modulation of COX-2 activity. Biomed Pharmacother 2016; 83:1478-1484. [DOI: 10.1016/j.biopha.2016.09.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 08/22/2016] [Accepted: 09/01/2016] [Indexed: 01/13/2023] Open
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Figueira ME, Oliveira M, Direito R, Rocha J, Alves P, Serra AT, Duarte C, Bronze R, Fernandes A, Brites D, Freitas M, Fernandes E, Sepodes B. Protective effects of a blueberry extract in acute inflammation and collagen-induced arthritis in the rat. Biomed Pharmacother 2016; 83:1191-1202. [PMID: 27551767 DOI: 10.1016/j.biopha.2016.08.040] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 07/28/2016] [Accepted: 08/15/2016] [Indexed: 01/22/2023] Open
Abstract
Here we investigated the anti-inflammatory effect of a blueberry extract in the carrageenan-induced paw edema model and collagen-induced arthritis model, both in rats. Along with the chemical characterization of the phenolic content of the fruits and extract, the antioxidant potential of the extract, the cellular antioxidant activity and the effects over neutrophils' oxidative burst, were studied in order to provide a mechanistic insight for the anti-inflammatory effects observed. The extract significantly inhibited paw edema formation in an acute model the rat. Our results also demonstrate that the standardized extract had pharmacological activity when administered orally in the collagen-induced arthritis model in the rat and was able to significantly reduce the development of clinical signs of arthritis and the degree of bone resorption, soft tissue swelling and osteophyte formation, consequently improving articular function in treated animals.
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Affiliation(s)
- Maria-Eduardo Figueira
- iMED.ULisboa and Faculdade de Farmácia - Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Mónica Oliveira
- iMED.ULisboa and Faculdade de Farmácia - Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Rosa Direito
- iMED.ULisboa and Faculdade de Farmácia - Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - João Rocha
- iMED.ULisboa and Faculdade de Farmácia - Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Paula Alves
- Faculdade de Medicina, Universidade de Coimbra, 3004-504 Coimbra, Portugal
| | - Ana-Teresa Serra
- ITQB/IBET, Avenida da República, Quinta do Marquês, Estação Agronómica Nacional, 2781-901 Oeiras, Portugal
| | - Catarina Duarte
- ITQB/IBET, Avenida da República, Quinta do Marquês, Estação Agronómica Nacional, 2781-901 Oeiras, Portugal
| | - Rosário Bronze
- ITQB/IBET, Avenida da República, Quinta do Marquês, Estação Agronómica Nacional, 2781-901 Oeiras, Portugal
| | - Adelaide Fernandes
- iMED.ULisboa and Faculdade de Farmácia - Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Dora Brites
- iMED.ULisboa and Faculdade de Farmácia - Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Marisa Freitas
- REQUIMTE, Laboratório de Química Aplicada, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal
| | - Eduarda Fernandes
- REQUIMTE, Laboratório de Química Aplicada, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal
| | - Bruno Sepodes
- iMED.ULisboa and Faculdade de Farmácia - Universidade de Lisboa, Avenida Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
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41
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Surati KR, Sathe PA. Schiff base pyrazolone complexes of iron (III): synthesis, characterization, antimicrobial and antioxidant activity. Med Chem Res 2016. [DOI: 10.1007/s00044-016-1649-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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42
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Ridzuan N, John CM, Sandrasaigaran P, Maqbool M, Liew LC, Lim J, Ramasamy R. Preliminary study on overproduction of reactive oxygen species by neutrophils in diabetes mellitus. World J Diabetes 2016; 7:271-278. [PMID: 27433296 PMCID: PMC4937165 DOI: 10.4239/wjd.v7.i13.271] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 04/26/2016] [Accepted: 06/03/2016] [Indexed: 02/05/2023] Open
Abstract
AIM: To assess the amount and pattern of reactive oxygen species (ROS) production in diabetic patient-derived neutrophils.
METHODS: Blood samples from type 2 diabetes mellitus (DM) patients and volunteers (controls) were subjected to neutrophil isolation and the assessment of neutrophil oxidative burst using chemiluminescence assay. Neutrophils were activated by using phorbol myristate acetate (PMA) and neutrophils without activation were kept as a negative control. The chemiluminescence readings were obtained by transferring cell suspension into a 1.5 mL Eppendorf tube, with PMA and luminol. Reaction mixtures were gently vortexed and placed inside luminometer for a duration of 5 min.
RESULTS: Our results showed that in the resting condition, the secretion of ROS in normal non-diabetic individuals was relatively low compared to diabetic patients. However, the time scale observation revealed that the secreted ROS declined accordingly with time in non-diabetic individuals, yet such a reduction was not detected in diabetic patients where at all the time points, the secretion of ROS was maintained at similar magnitudes. This preliminary study demonstrated that ROS production was significantly higher in patients with DM compared to non-diabetic subjects in both resting and activated conditions.
CONCLUSION: The respiratory burst activity of neutrophils could be affected by DM and the elevation of ROS production might be an aggravating factor in diabetic-related complications.
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Rao KS, Ramesh P, Trivedi R, Kantam ML. Chiral squaramide catalyzed synthesis of C4 substituted chiral pyrazol-3-ol derivatives via a facile asymmetric Michael addition of 3-methyl-2-pyrazolin-5-one to β-nitrostyrenes. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.02.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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44
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De Crescentini L, Perrulli FR, Favi G, Santeusanio S, Giorgi G, Attanasi OA, Mantellini F. Reactions of 1,2-diaza-1,3-butadienes with propargyl alcohol as an approach to novel bi-heterocyclic systems. Org Biomol Chem 2016; 14:8674-8678. [DOI: 10.1039/c6ob01595f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Starting from easily available 1,2-diaza-1,3-dienes and propargyl alcohol, spyro-bicyclic systems, through 2,3-Wittig rearrangement, and pyrazolone–triazole derivatives, through a typical “click reaction”, are obtained.
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Affiliation(s)
- L. De Crescentini
- Department of Biomolecular Sciences
- Section of Organic Chemistry and Organic Natural Compounds
- University of Urbino “Carlo Bo”
- 61029 Urbino
- Italy
| | - F. R. Perrulli
- Department of Biomolecular Sciences
- Section of Organic Chemistry and Organic Natural Compounds
- University of Urbino “Carlo Bo”
- 61029 Urbino
- Italy
| | - G. Favi
- Department of Biomolecular Sciences
- Section of Organic Chemistry and Organic Natural Compounds
- University of Urbino “Carlo Bo”
- 61029 Urbino
- Italy
| | - S. Santeusanio
- Department of Biomolecular Sciences
- Section of Organic Chemistry and Organic Natural Compounds
- University of Urbino “Carlo Bo”
- 61029 Urbino
- Italy
| | - G. Giorgi
- Department of Chemistry
- University of Siena
- 53100 Siena
- Italy
| | - O. A. Attanasi
- Department of Biomolecular Sciences
- Section of Organic Chemistry and Organic Natural Compounds
- University of Urbino “Carlo Bo”
- 61029 Urbino
- Italy
| | - F. Mantellini
- Department of Biomolecular Sciences
- Section of Organic Chemistry and Organic Natural Compounds
- University of Urbino “Carlo Bo”
- 61029 Urbino
- Italy
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Purohit VB, Karad SC, Patel KH, Raval DK. Palladium N-heterocyclic carbene catalyzed expected and unexpected C–C and C–N functionalization reactions of 1-aryl-3-methyl-1H-pyrazol-5(4H)-ones. RSC Adv 2016. [DOI: 10.1039/c6ra22779a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
A palladium N-heterocyclic carbene complex of vitamin B1 developed earlier in our laboratory was successfully employed as an efficient catalyst for the regioselective C–C and C–N functionalization reactions of 1-aryl-3-methyl-1H-pyrazol-5(4H)-ones.
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Affiliation(s)
- Vishal B. Purohit
- Department of Chemistry
- Sardar Patel University
- Vallabh Vidyanagar-388 120
- India
| | - Sharad C. Karad
- Department of Chemistry
- Sardar Patel University
- Vallabh Vidyanagar-388 120
- India
| | - Kirit H. Patel
- Department of Chemistry
- Sardar Patel University
- Vallabh Vidyanagar-388 120
- India
| | - Dipak K. Raval
- Department of Chemistry
- Sardar Patel University
- Vallabh Vidyanagar-388 120
- India
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Li JH, Du DM. Phosphine-Catalyzed Cascade Reaction of Unsaturated Pyrazolones with Alkyne Derivatives: Efficient Synthesis of Pyrano[2,3-c]pyrazoles and Spiro-cyclopentanone-pyrazolones. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500675] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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47
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Asymmetric tandem Michael addition/oxidation of pyrazolones with p-benzoquinone catalyzed by cinchona alkaloids. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2015.10.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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48
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Erythropoietin reduces acute lung injury and multiple organ failure/dysfunction associated to a scald-burn inflammatory injury in the rat. Inflammation 2015; 38:312-26. [PMID: 25270658 DOI: 10.1007/s10753-014-0035-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Erythropoietin (EPO) is an endogenous regulator of erythropoiesis and is given exogenously as a replacement therapy for selected red blood cell disorders. In the past years, EPO has been emerging as a multifunctional, cytoprotective cytokine with anti-apoptotic, anti-inflammatory, and immunomodulatory properties. We aimed to evaluate the cytoprotective effect of rhEPO (recombinant human EPO) treatment on a rat model of multiorgan dysfunction induced by thermal injury. rhEPO was administered at 1000 U/kg (i.v.) 5 min prior to induction of injury and significantly reduced multiorgan dysfunction markers (liver, kidney, lung, serum cytokine levels). In the lung, rhEPO reduced: histological signs of tissue injury, inflammatory/injury markers on the bronchoalveolar fluid, neutrophil chemotaxis/infiltration, GSK-3β activation, and apoptosis. Our study showed that erythropoietin has the potential to exhibit pleiotropic cytoprotective effects and that it might be an interesting pharmacological strategy in the modulation of acute lung injury, such as the one associated to severe burn.
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49
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Marchetti F, Pettinari R, Pettinari C. Recent advances in acylpyrazolone metal complexes and their potential applications. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2015.05.003] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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50
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Park JA, Zhang D, Kim SK, Cho SH, Cho SM, Yi H, Shim JH, Kim JS, Abd El-Aty AM, Shin HC. Simultaneous determination of aminopyrine and antipyrine in porcine muscle, milk, and eggs using liquid chromatography with tandem mass spectrometry. J Sep Sci 2015; 38:4048-54. [PMID: 26434939 DOI: 10.1002/jssc.201500920] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 09/21/2015] [Accepted: 09/21/2015] [Indexed: 11/06/2022]
Abstract
The concentrations of residual aminopyrine and antipyrine in porcine muscle, milk, and egg samples were analyzed using liquid chromatography with tandem mass spectrometry after undergoing a series of sample pretreatment steps. Owing to an ion suppression effect, matrix-matched calibrations were used for analyte quantitation with determination coefficients (R(2) ) ≥ 0.9931. The recovery rates for aminopyrine and antipyrine in various matrices at two spiking levels (5 and 10 ng/g) fell in the range of 60.96-68.87 and 61.87-66.99%, respectively. Meanwhile, the intra- and inter-day precisions (expressed as relative standard deviation) were 1.02-12.95 and 1.71-5.50%, respectively. The method's detection limit (1 ng/g) was very low, thus enabling the detection of low residue levels. The applicability of the developed method was demonstrated with actual market samples and none of the tested analytes was detected in any of the samples.
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Affiliation(s)
- Jin-A Park
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
| | - Dan Zhang
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
| | - Seong-Kwan Kim
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
| | - Sang-Hyun Cho
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
| | - Soo-Min Cho
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
| | - Hee Yi
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
| | - Jae-Han Shim
- Biotechnology Research Institute, College of Agriculture and Life Sciences, Chonnam National University, Gwangju, Republic of Korea
| | - Jin-Suk Kim
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
| | - A M Abd El-Aty
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea.,Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Ho-Chul Shin
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
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