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Fadraersada J, Alva-Gallegos R, Skořepa P, Musil F, Javorská L, Matoušová K, Krčmová LK, Paclíková M, Carazo A, Blaha V, Mladěnka P. Head-to-head ex vivo comparison of clinically used direct anticoagulant drugs. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:4461-4470. [PMID: 38112731 DOI: 10.1007/s00210-023-02891-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 12/04/2023] [Indexed: 12/21/2023]
Abstract
An imbalance in coagulation is associated with cardiovascular events. For prevention and treatment, anticoagulants, currently mainly xabans and gatrans, are used. The purpose of the present study was to provide a head-to-head comparison since there are no studies directly evaluating these novel anticoagulants. An additional aim was to find whether selected anthropological and biochemical factors can affect their anticoagulant properties as they are used in fixed doses. In this cross-sectional study, blood from 50 generally healthy donors was collected, and coagulation responses to dabigatran, argatroban, rivaroxaban, and apixaban, at a concentration of 1 μM, were analyzed. Heparin was used as a positive control. Prothrombin time (PT) expressed as international normalized ratio (INR) and activated partial thromboplastin time (aPTT) were measured and compared. Rivaroxaban was the most active according to PT/INR while argatroban according to aPTT. The ex vivo anticoagulant effect measured by INR correlated inversely with body mass index (BMI) in all four anticoagulants tested. Shortening of aPTT was associated with higher cholesterol and triglyceride levels. No sex-related differences were observed in response to the anticoagulant treatments. As this was an ex vivo study and pharmacokinetic factors were not included, the influence of BMI is of high therapeutic importance.
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Affiliation(s)
- Jaka Fadraersada
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Raúl Alva-Gallegos
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Pavel Skořepa
- 3rd Department of Internal Medicine-Metabolic Care and Gerontology, University Hospital and Faculty of Medicine in Hradec Králové, Charles University, Sokolská 581, 50005, Hradec Králové, Czech Republic
- Department of Military Internal Medicine and Military Hygiene, Faculty of Military Health Sciences, University of Defence, Hradec Králové, Czech Republic
| | - František Musil
- Department of Occupational Medicine, University Hospital and Faculty of Medicine in Hradec Králové, Charles University, Sokolská 581, 50005, Hradec Králové, Czech Republic
| | - Lenka Javorská
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Hradec Králové, Czech Republic
| | - Kateřina Matoušová
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Hradec Králové, Czech Republic
| | - Lenka Kujovská Krčmová
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Hradec Králové, Czech Republic
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Markéta Paclíková
- 3rd Department of Internal Medicine-Metabolic Care and Gerontology, University Hospital and Faculty of Medicine in Hradec Králové, Charles University, Sokolská 581, 50005, Hradec Králové, Czech Republic
| | - Alejandro Carazo
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Vladimír Blaha
- 3rd Department of Internal Medicine-Metabolic Care and Gerontology, University Hospital and Faculty of Medicine in Hradec Králové, Charles University, Sokolská 581, 50005, Hradec Králové, Czech Republic
| | - Přemysl Mladěnka
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic.
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Krčmová LK, Javorská L, Matoušová K, Šmahel P, Skála M, Kopecký M, Suwanvecho C, Přívratská N, Turoňová D, Melichar B. Evaluation of inflammatory biomarkers and vitamins in hospitalized patients with SARS-CoV-2 infection and post-COVID syndrome. Clin Chem Lab Med 2024; 62:1217-1227. [PMID: 38374668 DOI: 10.1515/cclm-2023-1297] [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: 11/15/2023] [Accepted: 02/06/2024] [Indexed: 02/21/2024]
Abstract
OBJECTIVES Concentrations of neopterin, kynurenine and kynurenine/tryptophan ratios predict prognosis and the need for oxygen therapy in patients hospitalized for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. The aims of the present study were to evaluate the changes of these biomarkers early in the course of infection, the association with the prior coronavirus disease (COVID-19) vaccination and therapeutic administration of Anti-SARS-CoV-2 monoclonal antibodies, investigation of other potential biomarkers including neuropilin, 8-hydroxy-2-deoxyguanosine and 8-hydroxyguanosine in patients hospitalized with SARS-CoV-2 infection and an assessment of these biomarkers and vitamins A, E and D in patients with post-COVID syndrome. METHODS Urine and blood samples were obtained on the 1st to the 4th day and 4th to 7th day from 108 patients hospitalized with COVID-19. Chromatography tandem mass spectrometry methods were used to analyse neopterin, kynurenine, tryptophan, liposoluble vitamins, and DNA damage biomarkers. RESULTS A statistically significant decrease of neopterin, kynurenine and kynurenine/tryptophan ratios was observed on after 4th to 7th day of hospitalization, and concentrations of these biomarkers were increased in patients with poor prognosis and subsequent post-COVID syndrome. The concentrations of remaining biomarker and vitamins were not associated with outcomes, although markedly decreased concentrations of vitamin A, E and D were noted. CONCLUSIONS The concentrations of neopterin, kynurenine and kynurenine/tryptophan ratios decrease during the course of infection SARS-CoV-2 and are associated with the post-COVID syndrome. No other prognostic biomarkers were identified.
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Affiliation(s)
- Lenka Kujovská Krčmová
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Hradec Králové, Czech Republic
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Lenka Javorská
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Hradec Králové, Czech Republic
| | - Kateřina Matoušová
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Hradec Králové, Czech Republic
| | - Petr Šmahel
- Deparment of Infectious Diseases, University Hospital Hradec Králové, Hradec Králové, Czech Republic
| | - Mikuláš Skála
- Department of Pneumology, University Hospital Hradec Králové, Hradec Králové, Czech Republic
| | - Michal Kopecký
- Department of Pneumology, University Hospital Hradec Králové, Hradec Králové, Czech Republic
| | - Chaweewan Suwanvecho
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Hradec Králové, Czech Republic
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Nikola Přívratská
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Hradec Králové, Czech Republic
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Dorota Turoňová
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Hradec Králové, Czech Republic
| | - Bohuslav Melichar
- Department of Oncology, Faculty of Medicine and Dentistry, Palacký University, Olomouc, Czech Republic
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Meng Y, Cheng Y, Yang X, Wang C, Yang K, Schipper D. Construction of a Zn(II)-Eu(III) Nanoring with Temperature-Dependent Luminescence for the Qualitative and Quantitative Detection of Neopterin as an Inflammatory Marker. Inorg Chem 2024; 63:7199-7205. [PMID: 38602179 DOI: 10.1021/acs.inorgchem.3c04386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
A nine-metal Zn(II)-Eu(III) nanoring 1 with a diameter of about 2.3 nm was constructed by the use of a long-chain Schiff base ligand. It shows a luminescence response to neopterin (Neo) through the enhancement of lanthanide emission with high selectivity and sensitivity, which can be used to quantitatively analyze the concentrations of Neo in fetal calf serum and urine. The luminescence sensing of 1 to Neo is temperature-dependent, and it displays more obvious response behavior at lower temperatures. Filter paper strips bearing 1 can be used to qualitatively detect Neo by the color change from chartreuse to red under a UV lamp. The limit of detection is as low as 3.77 × 10-2 nM.
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Affiliation(s)
- Yanheng Meng
- Zhejiang Key Laboratory of Carbon Materials, Key Lab of Biohealth Materials and Chemistry of Wenzhou, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Yuebo Cheng
- Zhejiang Key Laboratory of Carbon Materials, Key Lab of Biohealth Materials and Chemistry of Wenzhou, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Xiaoping Yang
- Zhejiang Key Laboratory of Carbon Materials, Key Lab of Biohealth Materials and Chemistry of Wenzhou, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Chengri Wang
- Zhejiang Key Laboratory of Carbon Materials, Key Lab of Biohealth Materials and Chemistry of Wenzhou, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Keqin Yang
- Zhejiang Key Laboratory of Carbon Materials, Key Lab of Biohealth Materials and Chemistry of Wenzhou, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Desmond Schipper
- Department of Chemistry and Biochemistry, The University of Texas at Austin, Austin, Texas 78712, United States
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Hong C, Li L, Zou JY, You SY, Wang EL, Zhang L, Liu YW, Huang YL. On-Off Ratiometric Fluorescence Europium(III) Metal-Organic Framework for Quantitative Detection of the Inflammatory Marker Neopterin. Inorg Chem 2024; 63:4697-4706. [PMID: 38407040 DOI: 10.1021/acs.inorgchem.3c04357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Benefiting from the unique photoluminescence behavior of the lanthanide(III) ions and organic ligands, a lanthanide(III) metal-organic framework (Ln-MOF) material can simultaneously demonstrate photoluminescence of lanthanide(III) cations and organic molecules and endow its superior applications of fluorescence sensing behaviors. Herein, we present a europium(III) MOF material {[Eu2(BPTA)·(CH3COO)2·3DMA]·0.5DMA·3H2O}n (1) (where H4BPTA is 3,3',5,5'-biphenyltetracarboxylic acid) for photoluminescence performance of quantitatively sensing the inflammatory marker neopterin (Neo). The obtained 1 comprises Eu2(COO)4 paddlewheel secondary building units, which could be bridged by BPTA4- ligands to extend a 2D framework. The fluorescence titration indicates 1 can achieve simultaneous fluorescence behavior of Eu3+ ions and Neo via on-off ratiometric effects and thus could be exploited as the ratiometric fluorescence sensor matrix. Such a fluorescence phenomenon of 1 as a ratiometric sensor for quantitative detection of Neo via an on-off ratiometric effect is never observed in MOF chemistry. Moreover, naked-eye visible color variations of the fluorescence for 1 could be observed from red to blue with increasing concentrations of Neo, confirmed by fluorescent test strips as well as portable fluorescent hydrogels. And 1 also shows a low detection limit of 15.11 nM. A synergetic contribution of the competitive absorption, fluorescence resonance energy-transfer, and photoinduced electron-transfer mechanisms between Neo and the framework of 1 realizes the on-off ratiometric fluorescence behavior for Neo detection, supported by the UV-vis spectral overlap experiment and DFT calculations.
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Affiliation(s)
- Chao Hong
- Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang 330096, PR China
- School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, PR China
| | - Ling Li
- Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang 330096, PR China
| | - Ji-Yong Zou
- Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang 330096, PR China
| | - Sheng-Yong You
- Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang 330096, PR China
| | - Er Li Wang
- Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang 330096, PR China
- School of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, PR China
| | - Li Zhang
- Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang 330096, PR China
| | - Yue-Wei Liu
- Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang 330096, PR China
| | - You-Lin Huang
- School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, PR China
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Krčmová LK, Matoušová K, Javorská L, Šmahel P, Skála M, Koblížek V, Škop J, Turoňová D, Gančarčíková M, Melichar B. Neopterin and kynurenine in serum and urine as prognostic biomarkers in hospitalized patients with delta and omicron variant SARS-CoV-2 infection. Clin Chem Lab Med 2023; 61:2053-2064. [PMID: 37285602 DOI: 10.1515/cclm-2023-0381] [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: 04/14/2023] [Accepted: 05/20/2023] [Indexed: 06/09/2023]
Abstract
OBJECTIVES Currently, no biomarker or scoring system could clearly identify patients at risk of progression to a severe coronavirus disease (COVID)-19. Even in patients with known risk factors, the fulminant course cannot be predicted with certainty. Analysis of commonly determined clinical parameters (frailty score, age, or body mass index) together with routine biomarkers of host response (C-reactive protein and viral nucleocapsid protein) in combination with new biomarkers neopterin, kynurenine, and tryptophan, could aid in predicting the patient outcome. METHODS In 2021 and 2022, urine and serum samples were prospectively collected on 1st to 4th day after hospital admission in 108 consecutive COVID-19 patients hospitalized at the University Hospital Hradec Králové, Czech Republic. Delta and omicron virus variants were studied. Neopterin, kynurenine and tryptophan were determined by liquid chromatography. RESULTS A significant correlation was observed between urinary and serum biomarker concentrations. Urinary and serum neopterin, kynurenine and kynurenine/tryptophan ratio were significantly (p≤0.05) higher in patients who subsequently needed oxygen therapy vs. patients without oxygen therapy. These parameters were also significantly increased in patients who died during the hospitalization compared to survivors. Complex equations have been derived using the investigated biomarkers and other clinical or laboratory parameters to predict the risk of subsequent oxygen therapy or death during hospitalization. CONCLUSIONS Present data demonstrate that neopterin, kynurenine and kynurenine/tryptophan ratio in the serum or in the urine represent promising biomarkers in the management of COVID-19 that may help to guide important therapeutic decisions.
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Affiliation(s)
- Lenka Kujovská Krčmová
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Hradec Králové, Czech Republic
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Kateřina Matoušová
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Hradec Králové, Czech Republic
| | - Lenka Javorská
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Hradec Králové, Czech Republic
| | - Petr Šmahel
- Deparment of Infectious Diseases, University Hospital Hradec Králové, Hradec Králové, Czech Republic
| | - Mikuláš Skála
- Pulmonary Department, University Hospital in Hradec Králové, Hradec Králové, Czech Republic
| | - Vladimír Koblížek
- Pulmonary Department, University Hospital in Hradec Králové, Hradec Králové, Czech Republic
| | - Jan Škop
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Dorota Turoňová
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Hradec Králové, Czech Republic
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Markéta Gančarčíková
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Hradec Králové, Czech Republic
| | - Bohuslav Melichar
- Department of Oncology, Faculty of Medicine and Dentistry, Palacký University, Olomouc, Czech Republic
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Turoňová D, Krčmová LK, Vošmik M, Melichar B, Švec F. Using HPLC for the determination of platinum drugs in biological matrixes after derivatization with diethyldithiocarbamate. J Sep Sci 2023; 46:e2300392. [PMID: 37515359 DOI: 10.1002/jssc.202300392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/13/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023]
Abstract
Challenges and pitfalls in the application of diethyldithiocarbamate derivatization for LC analysis of cisplatin and oxaliplatin, as well as the suitability of this method for different biological matrices with implications for use in routine practice have been identified. The LC of platinum drugs presents a significant challenge. They are polar compounds with poor retention on reverse phase packings. Cisplatin also exhibits poor absorption in UV and ionization in mass spectrometry. Therefore, we developed and optimized a derivatization approach for the LC analysis of total platinum in plasma, plasma ultrafiltrate, peritoneal fluid, and urine. Derivatization in urine proved to be difficult due to the complexity of the matrix, and extended testing was required. Our results highlight the important issues affecting the efficiency, reliability, and suitability of platinum drug derivatization. Although precolumn derivatization is less selective than its postcolumn counterpart, the application of precolumn derivatization is a simple, rapid, and universal approach for the determination of platinum drugs by HPLC. One of its major advantages is that it allows a more affordable analysis using UV detection without the need for additional high-end instrumentation such as a MS detector.
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Affiliation(s)
- Dorota Turoňová
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Hradec Králové, Czech Republic
| | - Lenka Kujovská Krčmová
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Hradec Králové, Czech Republic
| | - Milan Vošmik
- Department of Oncology and Radiotherapy, University Hospital Hradec Králové, Hradec Králové, Czech Republic
| | - Bohuslav Melichar
- Department of Oncology and Radiotherapy, University Hospital Hradec Králové, Hradec Králové, Czech Republic
- Department of Oncology, Faculty of Medicine and Dentistry, Palacký University, Olomouc, Czech Republic
| | - František Švec
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
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Chocholouš P, Matoušová K, Šatínský D, Krčmová LK, Sklenářová H. Longevity and other practical benefits of monolithic silica columns in the analysis of samples with complex matrices. J Sep Sci 2023; 46:e2300448. [PMID: 37582639 DOI: 10.1002/jssc.202300448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/31/2023] [Accepted: 08/01/2023] [Indexed: 08/17/2023]
Abstract
At the turn of the millennium, the monolithic columns invoked new chances in HPLC. Even more than their organic polymer-based siblings, the inorganic silica-based monoliths targeted the territory of classical fully porous particle-packed columns, promising many benefits. Based on the number of published articles, the monoliths attracted academics just in the first few years after their introduction to the market. Lately, as superficially porous particles and sub-2-micron fully porous particles dominated the market, they stayed in the focus of routine laboratories and those who really appreciated the high porosity of the monolithic bed. The monoliths' practical benefits cannot be easily traced in the literature when they gradually lose academics' interest. Nevertheless, after more than 20 years of our experience, we still favor silica monoliths for their low back pressure and longevity when analyzing samples of clinical, pharmaceutical, and environmental origin. At the same time, the high permeability of monoliths enabled the birth of sequential injection chromatography, the medium-pressure separation technique based on the flexible flow manifold. This minireview aims to check, discuss, and summarize the practical aspects of monolithic silica columns in HPLC and medium-pressure sequential injection chromatography (SIC) that may not be visible at first sight but are evident retrospectively.
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Affiliation(s)
- Petr Chocholouš
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Kateřina Matoušová
- Department of Clinical Biochemistry and Diagnostics, University Hospital, Hradec Králové, Czech Republic
| | - Dalibor Šatínský
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Lenka Kujovská Krčmová
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
- Department of Clinical Biochemistry and Diagnostics, University Hospital, Hradec Králové, Czech Republic
| | - Hana Sklenářová
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
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Mrštná K, Kujovská Krčmová L, Švec F. Advances in kynurenine analysis. Clin Chim Acta 2023:117441. [PMID: 37321530 DOI: 10.1016/j.cca.2023.117441] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 06/07/2023] [Accepted: 06/08/2023] [Indexed: 06/17/2023]
Abstract
Kynurenine, the first product of tryptophan degradation via the kynurenine pathway, has become one of the most frequently mentioned biomarkers in recent years. Its levels in the body indicate the state of the human physiology. Human serum and plasma are the main matrixes used to evaluate kynurenine levels and liquid chromatography is the dominant technique for its determination. However, their concentrations in blood do not always correspond to the levels in other matrixes obtained from the affected individuals. It is therefore important to decide when it is appropriate to analyse kynurenine in alternative matrices. However, liquid chromatography may not be the best option for the analysis. This review presents alternatives that can be used and summarizes the features that need to be considered prior to kynurenine determination. Possible approaches to kynurenine analysis in a variety of human matrixes, their challenges, and limitations are critically discussed.
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Affiliation(s)
- K Mrštná
- The Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203/8, 50005 Hradec Králové, Czech Republic; The Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Sokolská 581, 50005 Hradec Králové, Czech Republic
| | - L Kujovská Krčmová
- The Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203/8, 50005 Hradec Králové, Czech Republic; The Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Sokolská 581, 50005 Hradec Králové, Czech Republic.
| | - F Švec
- The Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203/8, 50005 Hradec Králové, Czech Republic
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9
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Konečný L, Hrubša M, Karlíčková J, Carazo A, Javorská L, Matoušová K, Krčmová LK, Blaha V, Bláha M, Mladěnka P. The Impact of Convertase Subtilisin/Kexin Type 9 Monoclonal Antibodies with and without Apheresis on Platelet Aggregation in Familial Hypercholesterolemia. Cardiovasc Drugs Ther 2023:10.1007/s10557-023-07455-y. [PMID: 37129685 DOI: 10.1007/s10557-023-07455-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/18/2023] [Indexed: 05/03/2023]
Abstract
BACKGROUND AND AIMS It is well known that elevated cholesterol is associated with enhanced platelet aggregation and patients suffering from familial hypercholesterolemia (FH) have a high risk of thrombotic cardiovascular events. Although decreasing cholesterol level is associated with attenuation of platelet hyperactivity, there are currently no data on the effect of convertase subtilisin/kexin type 9 monoclonal antibodies (PCSK9ab) on platelet reactivity in FH. The aim of the study was to analyse the impact of different therapies including PCSK9ab on platelet aggregation in FH. METHODS This study enrolled all 15 patients treated in the University Hospital Hradec Králové for FH. PCSK9ab have been administered in 12 of 15 patients while 8 patients were also undergoing lipid apheresis. Blood samples from all patients including pre- and post-apheresis period were tested for platelet aggregation triggered by 7 inducers, and the effect of 3 clinically used drugs (acetylsalicylic acid, ticagrelor and vorapaxar) was compared as well. RESULTS Although apheresis decreased the reactivity of platelets in general, platelet responses were not different between non-apheresis patients treated with PCSK9ab and apheresis patients (post-apheresis values) with the exception of ristocetin. However, when compared to age-matched healthy population, FH patients had significantly lower platelet aggregation responses to 4 out of 7 used inducers and higher profit from 2 out of 3 used antiplatelet drugs even after exclusion of FH patients regularly receiving conventional antiplatelet treatment. CONCLUSION This study showed for the first time the suitability of PCSK9ab treatment for reduction of platelet reactivity in FH patients.
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Affiliation(s)
- Lukáš Konečný
- The Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, 50005, Hradec Králové, Czechia
| | - Marcel Hrubša
- The Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, 50005, Hradec Králové, Czechia
| | - Jana Karlíčková
- The Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmacy in Hradec Králové, Charles University, 50005, Hradec Králové, Czechia
| | - Alejandro Carazo
- The Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, 50005, Hradec Králové, Czechia
| | - Lenka Javorská
- The Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, 50005, Hradec Králové, Czechia
| | - Kateřina Matoušová
- The Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, 50005, Hradec Králové, Czechia
| | - Lenka Kujovská Krčmová
- The Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, 50005, Hradec Králové, Czechia
- The Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, 50005, Hradec Králové, Czechia
| | - Vladimír Blaha
- The 3rd Department of Internal Medicine-Metabolic Care and Gerontology, University Hospital and Faculty of Medicine in Hradec Králové, Charles University, 50005, Hradec Králové, Czechia
| | - Milan Bláha
- The 3rd Department of Internal Medicine-Metabolic Care and Gerontology, University Hospital and Faculty of Medicine in Hradec Králové, Charles University, 50005, Hradec Králové, Czechia
| | - Přemysl Mladěnka
- The Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, 50005, Hradec Králové, Czechia.
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10
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Konečný L, Hrubša M, Karlíčková J, Carazo A, Javorská L, Matoušová K, Krčmová LK, Šmahelová A, Blaha V, Bláha M, Mladěnka P. The Effect of 4-Methylcatechol on Platelets in Familial Hypercholesterolemic Patients Treated with Lipid Apheresis and/or Proprotein Convertase Subtilisin Kexin 9 Monoclonal Antibodies. Nutrients 2023; 15:nu15081842. [PMID: 37111061 PMCID: PMC10143685 DOI: 10.3390/nu15081842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/30/2023] [Accepted: 04/05/2023] [Indexed: 04/29/2023] Open
Abstract
Elevated low-density lipoprotein (LDL) cholesterol levels lead to atherosclerosis and platelet hyperaggregability, both of which are known culprits of arterial thrombosis. Normalization of LDL cholesterol in familial hypercholesterolemia (FH) is not an easy task and frequently requires specific treatment, such as regularly performed lipid apheresis and/or novel drugs such as proprotein convertase subtilisin kexin 9 monoclonal antibodies (PCSK9Ab). Moreover, a high resistance rate to the first-line antiplatelet drug acetylsalicylic acid (ASA) stimulated research of novel antiplatelet drugs. 4-methylcatechol (4-MC), a known metabolite of several dietary flavonoids, may be a suitable candidate. The aim of this study was to analyse the antiplatelet effect of 4-MC in FH patients and to compare its impact on two FH treatment modalities via whole-blood impedance aggregometry. When compared to age-matched, generally healthy controls, the antiplatelet effect of 4-MC against collagen-induced aggregation was higher in FH patients. Apheresis itself improved the effect of 4-MC on platelet aggregation and blood from patients treated with this procedure and pretreated with 4-MC had lower platelet aggregability when compared to those solely treated with PCKS9Ab. Although this study had some inherent limitations, e.g., a low number of patients and possible impact of administered drugs, it confirmed the suitability of 4-MC as a promising antiplatelet agent and also demonstrated the effect of 4-MC in patients with a genetic metabolic disease for the first time.
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Affiliation(s)
- Lukáš Konečný
- The Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, 50005 Hradec Králové, Czech Republic
| | - Marcel Hrubša
- The Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, 50005 Hradec Králové, Czech Republic
| | - Jana Karlíčková
- The Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmacy in Hradec Králové, Charles University, 50005 Hradec Králové, Czech Republic
| | - Alejandro Carazo
- The Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, 50005 Hradec Králové, Czech Republic
| | - Lenka Javorská
- The Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, 50005 Hradec Králové, Czech Republic
| | - Kateřina Matoušová
- The Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, 50005 Hradec Králové, Czech Republic
| | - Lenka Kujovská Krčmová
- The Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, 50005 Hradec Králové, Czech Republic
| | - Alena Šmahelová
- The 3rd Department of Internal Medicine-Metabolic Care and Gerontology, University Hospital and Faculty of Medicine in Hradec Králové, Charles University, 50005 Hradec Králové, Czech Republic
| | - Vladimír Blaha
- The 3rd Department of Internal Medicine-Metabolic Care and Gerontology, University Hospital and Faculty of Medicine in Hradec Králové, Charles University, 50005 Hradec Králové, Czech Republic
| | - Milan Bláha
- The 3rd Department of Internal Medicine-Metabolic Care and Gerontology, University Hospital and Faculty of Medicine in Hradec Králové, Charles University, 50005 Hradec Králové, Czech Republic
| | - Přemysl Mladěnka
- The Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, 50005 Hradec Králové, Czech Republic
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11
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Yilmaz B, Yasar H, Asci A, Kadioglu Y. Determination of neopterin in urine of industrial workers by HPLC. AN ACAD BRAS CIENC 2022; 94:e20220304. [PMID: 36515328 DOI: 10.1590/0001-3765202220220304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 09/09/2022] [Indexed: 12/15/2022] Open
Abstract
This study aimed to determine neopterin levels in the urine of industrial workers by the high-performance liquid chromatography method. Intra- and inter-day precision values for neopterin in urine were less than 3.14, and accuracy (relative error) was better than 3.00%. The limits of detection and quantification of neopterin were 0.3 and 1.0 ng/mL, respectively. Also, the developed method was applied to real samples to determine the neopterin levels in the urines of industrial workers, who have been exposed to various chemicals such as formaldehyde, heavy metals and thinners. Urine neopterin levels of industrial workers including auto painters, bodywork and furniture workers were statistically compared with healthy volunteers. The highest and lowest values of urinary neopterin for industrial workers were obtained 908.96 and 119.86 μmol/mol, respectively. Our investigation demonstrates that there is a meaningful difference in urinary neopterin levels between the workers and the control groups (P<0.05). Workers in the auto paint, body and furniture business may have been exposed to a toxic environmental exposure in their occupation. As a result, an increase in the concentration of neopterin in the urine may be important in the diagnosis and treatment of various diseases.
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Affiliation(s)
- Bilal Yilmaz
- Ataturk University, Faculty of Pharmacy, Department of Analytical Chemistry, 25240 Erzurum, Turkey
| | - Haluk Yasar
- Ataturk University, Faculty of Pharmacy, Department of Analytical Chemistry, 25240 Erzurum, Turkey
| | - Ali Asci
- Selcuk University, Faculty of Pharmacy, Department of Toxicology, 42130 Konya, Turkey
| | - Yucel Kadioglu
- Ataturk University, Faculty of Pharmacy, Department of Analytical Chemistry, 25240 Erzurum, Turkey
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12
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Neopterin Levels in Periodontitis and after Nonsurgical Periodontal Therapy: Evaluation of Gingival Crevicular Fluid, Oral Fluid, Serum and Urinary Samples-A Case-Control Study. Biomedicines 2022; 10:biomedicines10123200. [PMID: 36551955 PMCID: PMC9776342 DOI: 10.3390/biomedicines10123200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022] Open
Abstract
Periodontitis is a chronic inflammatory disease that leads to the destruction of the tooth-supporting tissues with complex immune response. Neopterin (Np), secreted via activated macrophages, is considered a biomarker of cellular immunity. The aim of this study was to evaluate the impact of periodontitis and nonsurgical periodontal therapy. Np gingival crevicular fluid (GCF), oral fluid, serum and urine levels were compared in subjects with periodontitis before periodontal treatment, three months after and in a healthy control. Np GCF concentrations in the study group after treatment were significantly higher than the control group (p = 0.038). The GCF total amount (amount of substance) was significantly higher in the study group before periodontal treatment than in the control group (p = 0.001) and higher than the levels taken after treatment collection (p = 0.024). The oral fluid Np concentrations in the study group after treatment were significantly increased compared to the before treatment concentrations (p = 0.020). The same trend was observed in the urine samples. Significant correlation was found between the serum and oral fluid Np concentrations (p = 0.001, ρ = 0.40). Our results confirm the impact of cellular immunity and macrophages on periodontitis and on the resolution of periodontal inflammation. The presence of neopterin in oral fluid most likely originates in the serum.
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13
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Hrubša M, Konečný L, Paclíková M, Parvin MS, Skořepa P, Musil F, Karlíčková J, Javorská L, Matoušová K, Krčmová LK, Carazo A, Šmahelová A, Blaha V, Mladěnka P. The Antiplatelet Effect of 4-Methylcatechol in a Real Population Sample and Determination of the Mechanism of Action. Nutrients 2022; 14:nu14224798. [PMID: 36432485 PMCID: PMC9694226 DOI: 10.3390/nu14224798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 10/17/2022] [Accepted: 11/09/2022] [Indexed: 11/16/2022] Open
Abstract
A polyphenol-rich diet has beneficial effects on cardiovascular health. However, dietary polyphenols generally have low bioavailability and reach low plasma concentrations. Small phenolic metabolites of these compounds formed by human microbiota are much more easily absorbable and could be responsible for this effect. One of these metabolites, 4-methylcatechol (4-MC), was suggested to be a potent anti-platelet compound. The effect of 4-MC was tested ex vivo in a group of 53 generally healthy donors using impedance blood aggregometry. The mechanism of action of this compound was also investigated by employing various aggregation inducers/inhibitors and a combination of aggregometry and enzyme linked immunosorbent assay (ELISA) methods. 4-MC was confirmed to be more potent than acetylsalicylic acid on both arachidonic acid and collagen-triggered platelet aggregation. Its clinically relevant effect was found even at a concentration of 10 μM. Mechanistic studies showed that 4-MC is able to block platelet aggregation caused by the stimulation of different pathways (receptors for the von Willebrand factor and platelet-activating factor, glycoprotein IIb/IIIa, protein kinase C, intracellular calcium elevation). The major mechanism was defined as interference with cyclooxygenase-thromboxane synthase coupling. This study confirmed the strong antiplatelet potential of 4-MC in a group of healthy donors and defined its mechanism of action.
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Affiliation(s)
- Marcel Hrubša
- The Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, 50005 Hradec Kralove, Czech Republic
| | - Lukáš Konečný
- The Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, 50005 Hradec Kralove, Czech Republic
| | - Markéta Paclíková
- The 3rd Department of Internal Medicine-Metabolic Care and Gerontology, University Hospital and Faculty of Medicine in Hradec Králové, Charles University, 50005 Hradec Kralove, Czech Republic
| | - Mst Shamima Parvin
- The Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmacy in Hradec Králové, Charles University, 50005 Hradec Kralove, Czech Republic
| | - Pavel Skořepa
- The 3rd Department of Internal Medicine-Metabolic Care and Gerontology, University Hospital and Faculty of Medicine in Hradec Králové, Charles University, 50005 Hradec Kralove, Czech Republic
- The Department of Military Internal Medicine and Military Hygiene, Faculty of Military Health Sciences, University of Defence, 50001 Hradec Kralove, Czech Republic
| | - František Musil
- The Department of Occupational Medicine, University Hospital and Faculty of Medicine in Hradec Králové, Charles University, 50005 Hradec Kralove, Czech Republic
| | - Jana Karlíčková
- The Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmacy in Hradec Králové, Charles University, 50005 Hradec Kralove, Czech Republic
| | - Lenka Javorská
- The Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, 50005 Hradec Kralove, Czech Republic
| | - Kateřina Matoušová
- The Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, 50005 Hradec Kralove, Czech Republic
| | - Lenka Kujovská Krčmová
- The Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, 50005 Hradec Kralove, Czech Republic
- The Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, 50005 Hradec Kralove, Czech Republic
| | - Alejandro Carazo
- The Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, 50005 Hradec Kralove, Czech Republic
| | - Alena Šmahelová
- The 3rd Department of Internal Medicine-Metabolic Care and Gerontology, University Hospital and Faculty of Medicine in Hradec Králové, Charles University, 50005 Hradec Kralove, Czech Republic
| | - Vladimír Blaha
- The 3rd Department of Internal Medicine-Metabolic Care and Gerontology, University Hospital and Faculty of Medicine in Hradec Králové, Charles University, 50005 Hradec Kralove, Czech Republic
| | - Přemysl Mladěnka
- The Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, 50005 Hradec Kralove, Czech Republic
- Correspondence: ; Tel.: +420-495-067-295
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14
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Carazo A, Hrubša M, Konečný L, Skořepa P, Paclíková M, Musil F, Karlíčková J, Javorská L, Matoušová K, Krčmová LK, Parvin MS, Šmahelová A, Blaha V, Mladěnka P. Sex-Related Differences in Platelet Aggregation: A Literature Review Supplemented with Local Data from a Group of Generally Healthy Individuals. Semin Thromb Hemost 2022. [PMID: 36206768 DOI: 10.1055/s-0042-1756703] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2022]
Abstract
The process of platelet aggregation is often influenced by several factors including sex and age. A literature review confirmed the existence of sex-related differences in platelet aggregation. Although 68 out of 78 papers found such differences, there are still some controversies regarding these differences, which can be due to multiple factors (age, trigger, concomitant disease, sample handling, etc.). These outcomes are discussed in line with novel results obtained from a local study, in which blood samples from a total of 53 overall healthy women and men with ages ranging from 20 to 66 years were collected. Aggregation was induced with seven different triggers (ristocetin, thrombin receptor activating peptide 6 [TRAP-6], arachidonic acid [AA], platelet-activating factor 16 [PAF-16], ADP, collagen, or thromboxane A2 analog U-46619) ex vivo. In addition, three FDA-approved antiplatelet drugs (vorapaxar, ticagrelor, or acetylsalicylic acid [ASA]) were also tested. In general, women had higher aggregation responses to some agonists (ADP, TRAP), as well as lower benefit from inhibitors (ASA, vorapaxar). The aggregatory responses to AA and TRAP decreased with age in both sexes, while responses to ADP, U-46619, and PAF were affected by age only in women. In conclusion, more studies are needed to decipher the biological importance of sex-related differences in platelet aggregation in part to enable personalized antiplatelet treatment.
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Affiliation(s)
- Alejandro Carazo
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Marcel Hrubša
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Lukáš Konečný
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Pavel Skořepa
- 3rd Department of Internal Medicine-Metabolic Care and Gerontology, University Hospital and Faculty of Medicine in Hradec Králové, Charles University, Hradec Králové, Czech Republic.,Department of Military Internal Medicine and Military Hygiene, Faculty of Military Health Sciences, University of Defence, Hradec Králové, Czech Republic
| | - Markéta Paclíková
- 3rd Department of Internal Medicine-Metabolic Care and Gerontology, University Hospital and Faculty of Medicine in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - František Musil
- Department of Occupational Medicine, Faculty of Medicine in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Jana Karlíčková
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Lenka Javorská
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Hradec Králové, Czech Republic
| | - Kateřina Matoušová
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Hradec Králové, Czech Republic
| | - Lenka Kujovská Krčmová
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Hradec Králové, Czech Republic.,Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Mst Shamima Parvin
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Alena Šmahelová
- 3rd Department of Internal Medicine-Metabolic Care and Gerontology, University Hospital and Faculty of Medicine in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Vladimír Blaha
- 3rd Department of Internal Medicine-Metabolic Care and Gerontology, University Hospital and Faculty of Medicine in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Přemysl Mladěnka
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
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15
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Ngamchuea K, Moonla C, Watwiangkham A, Wannapaiboon S, Suthirakun S. Electrochemical and structural investigation of copper phthalocyanine: Application in the analysis of kidney disease biomarker. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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16
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Chen Y, Yu X, Jiang Y, Liu M, Chen Z, Ding L, Li B, Zeng C. Highly sensitive sensing device based on highly luminescent lanthanide nanocluster for biomarker in human urine and serum. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 270:120782. [PMID: 34973612 DOI: 10.1016/j.saa.2021.120782] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/12/2021] [Accepted: 12/16/2021] [Indexed: 06/14/2023]
Abstract
The level of L-kynurenine (L-kyn) can reflect the health state of human body, and the determination of L-kyn can be used for the medical diagnosis of several cancers and neurological diseases. In this work, a series of air-, water-, and thermo-stable dinuclear lanthanide nanoclusters [Ln2(2,5-DFBA)6(phen)2] (Tb 1, Eu 2, Gd 3, 2,5-DFBA = 2,5-difluorobenzoic acid, phen = 1,10-phenanthroline) are obtained by a facial method. 1 and 2 show very high luminescence quantum yields (QYs) of 71.7% and 81.8%, respectively. Interestingly, investigation reveals that 1 is a quick, highly sensitive and selective sensor for L-kyn in real samples of urine and serum. Furthermore, transmission electron microscope (TEM) results reveal that nanocluster 1 is stable in solution and can be uniform distributed on the base, suggesting it can be deposited on various supports to fabricate sensing devices. Thus, 1 is fabricated into a sensitive test paper for the eye-readable detection of L-kyn in real samples of human urine and serum. The limit of detection (LOD) as low as 0.3 μM, which is enough to rapidly determine L-kyn in human body liquor (usually 5 μM in healthy human body).
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Affiliation(s)
- Yun Chen
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330022, PR China; Jiangxi Yuean Superfine Met Co Ltd, Ganzhou 341000, PR China
| | - Xiaobo Yu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330022, PR China; Jiangxi Yuean Superfine Met Co Ltd, Ganzhou 341000, PR China
| | - Yefei Jiang
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330022, PR China; Jiangxi Yuean Superfine Met Co Ltd, Ganzhou 341000, PR China
| | - Min Liu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330022, PR China; Jiangxi Yuean Superfine Met Co Ltd, Ganzhou 341000, PR China
| | - Zhao Chen
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330022, PR China; Jiangxi Yuean Superfine Met Co Ltd, Ganzhou 341000, PR China
| | - Liwen Ding
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330022, PR China
| | - Bo Li
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330022, PR China; Jiangxi Yuean Superfine Met Co Ltd, Ganzhou 341000, PR China
| | - Chenghui Zeng
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330022, PR China; Jiangxi Yuean Superfine Met Co Ltd, Ganzhou 341000, PR China.
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17
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Gáspár R, Halmi D, Demján V, Berkecz R, Pipicz M, Csont T. Kynurenine Pathway Metabolites as Potential Clinical Biomarkers in Coronary Artery Disease. Front Immunol 2022; 12:768560. [PMID: 35211110 PMCID: PMC8861075 DOI: 10.3389/fimmu.2021.768560] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 12/22/2021] [Indexed: 12/14/2022] Open
Abstract
Coronary artery disease (CAD) is one of the leading cause of mortality worldwide. Several risk factors including unhealthy lifestyle, genetic background, obesity, diabetes, hypercholesterolemia, hypertension, smoking, age, etc. contribute to the development of coronary atherosclerosis and subsequent coronary artery disease. Inflammation plays an important role in coronary artery disease development and progression. Pro-inflammatory signals promote the degradation of tryptophan via the kynurenine pathway resulting in the formation of several immunomodulatory metabolites. An unbalanced kynurenic pathway has been implicated in the pathomechanisms of various diseases including CAD. Significant improvements in detection methods in the last decades may allow simultaneous measurement of multiple metabolites of the kynurenine pathway and such a thorough analysis of the kynurenine pathway may be a valuable tool for risk stratification and determination of CAD prognosis. Nevertheless, imbalance in the activities of different branches of the kynurenine pathway may require careful interpretation. In this review, we aim to summarize clinical evidence supporting a possible use of kynurenine pathway metabolites as clinical biomarkers in various manifestations of CAD.
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Affiliation(s)
- Renáta Gáspár
- Metabolic Diseases and Cell Signaling Research Group (MEDICS), Department of Biochemistry, University of Szeged Albert Szent-Györgyi Medical School, Szeged, Hungary.,Interdisciplinary Centre of Excellence, University of Szeged, Szeged, Hungary
| | - Dóra Halmi
- Metabolic Diseases and Cell Signaling Research Group (MEDICS), Department of Biochemistry, University of Szeged Albert Szent-Györgyi Medical School, Szeged, Hungary.,Interdisciplinary Centre of Excellence, University of Szeged, Szeged, Hungary
| | - Virág Demján
- Metabolic Diseases and Cell Signaling Research Group (MEDICS), Department of Biochemistry, University of Szeged Albert Szent-Györgyi Medical School, Szeged, Hungary.,Interdisciplinary Centre of Excellence, University of Szeged, Szeged, Hungary
| | - Róbert Berkecz
- Institute of Pharmaceutical Analysis, Faculty of Pharmacy, University of Szeged, Szeged, Hungary
| | - Márton Pipicz
- Metabolic Diseases and Cell Signaling Research Group (MEDICS), Department of Biochemistry, University of Szeged Albert Szent-Györgyi Medical School, Szeged, Hungary.,Interdisciplinary Centre of Excellence, University of Szeged, Szeged, Hungary
| | - Tamás Csont
- Metabolic Diseases and Cell Signaling Research Group (MEDICS), Department of Biochemistry, University of Szeged Albert Szent-Györgyi Medical School, Szeged, Hungary.,Interdisciplinary Centre of Excellence, University of Szeged, Szeged, Hungary
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18
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Kaška M, Havel E, Javorská L, Matoušová K, Páral J, Chobola M, Šafránek P, Bezouška J, Krčmová LK. Can early postoperative parenteral nutrition have some impact on postoperative inflammatory response intensity? Clin Nutr ESPEN 2021; 45:150-154. [PMID: 34620311 DOI: 10.1016/j.clnesp.2021.07.022] [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: 07/22/2021] [Accepted: 07/26/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND AND AIMS Enhanced recovery after surgery (ERAS) is currently the modern perioperative method of care for improvement of post-surgery patient condition and for minimising various postoperative complications. A question of some negative impact of early postoperative parenteral nutrition on postoperative inflammatory response intensity has not clear-cut answer yet. This pilot project was focused on the possible influence of early parenteral nutrition on the intensity of inflammatory postoperative response to operating trauma in surgical patients. Elected as a model of these conditions were patients with colorectal cancer undergoing major surgery. PATIENTS AND METHODS 45 patients (of whom 39 were analysed finally) operated for cancer of the large bowel were enrolled into the clinical, prospective, randomized, blinded, and monocentric trial - reference number 201811 S09P of the Ethics committee, University Hospital Hradec Kralove, Czech Republic. Patients were divided into two subgroups according to the type of nutrition: subgroup A - supplemented only with 10% glucose for supported mineral carrier; and subgroup B - supplemented with total parenteral nutrition. Samples of blood and urine were examined immediately after surgery, and on the first, second, and fourth days postoperatively. The inflammatory reaction was monitored by the serum or/and urine concentration of neopterin, tryptophan, and kynurenine, and their urinary ratios with creatinine. The results were analysed by multivariate analysis, and p-values ≤ 0.05 were considered statistically significant. RESULTS The final total of 39 patients comprised 20 from subgroup A and 19 from subgroup B. The intensity of the inflammatory response detected by the selected inflammatory markers (serum and urine concentrations of neopterin, kynurenine, tryptophan, their serum ratios, and their urinary ratios to creatinine) did not demonstrate statistically significant differences after early administration of the two alternative types of parenteral nutrition. CONCLUSIONS The results of the study demonstrated the same or a very similar impact on the intensity of postoperative inflammatory response, regardless of whether the patient received intravenous administration of a small simple sugar infusion or total parenteral nutrition during early postoperative care.
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Affiliation(s)
- Milan Kaška
- Academic Department of Surgery, Medical Faculty and Surgical Department, University Hospital, Hradec Králové, Czech Republic; Surgical Department, University Hospital Hradec Králové, Czech Republic.
| | - Eduard Havel
- Academic Department of Surgery, Medical Faculty and Surgical Department, University Hospital, Hradec Králové, Czech Republic; Surgical Department, University Hospital Hradec Králové, Czech Republic
| | - Lenka Javorská
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Czech Republic
| | - Kateřina Matoušová
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Czech Republic
| | - Jiří Páral
- Academic Department of Surgery, Medical Faculty and Surgical Department, University Hospital, Hradec Králové, Czech Republic; Academic Military Surgical Department, Faculty of Military Health Sciences, University of Defence, Hradec Králové, Czech Republic; Surgical Department, University Hospital Hradec Králové, Czech Republic
| | - Milan Chobola
- Academic Department of Surgery, Medical Faculty and Surgical Department, University Hospital, Hradec Králové, Czech Republic; Surgical Department, University Hospital Hradec Králové, Czech Republic
| | - Petr Šafránek
- Surgical Department, University Hospital Hradec Králové, Czech Republic
| | - Jan Bezouška
- Academic Department of Surgery, Medical Faculty and Surgical Department, University Hospital, Hradec Králové, Czech Republic
| | - Lenka Kujovská Krčmová
- Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Czech Republic; Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Czech Republic
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Vernerová A, Krčmová LK, Heneberk O, Radochová V, Strouhal O, Kašparovský A, Melichar B, Švec F. Chromatographic method for the determination of inflammatory biomarkers and uric acid in human saliva. Talanta 2021; 233:122598. [PMID: 34215086 DOI: 10.1016/j.talanta.2021.122598] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/29/2021] [Accepted: 06/05/2021] [Indexed: 10/21/2022]
Abstract
Determination of concentration of biomarkers of the activation of immune system, uric acid, and creatinine in the saliva can be useful tool for the diagnosis and monitoring of early manifestations of diseases such as malignant, inflammatory, and periodontal disorders. We have developed and validated a high-performance liquid chromatographic method coupled with fluorescence and diode array detection for the separation and quantification of neopterin, tryptophan, creatinine, uric acid, and kynurenine in the human saliva. A separation of these analytes was achieved within 9 min by using second-generation monolithic stationary phase and elution with phosphate buffer. The present method involves very simple sample preparation requiring small amount of sample matrix. The internal standard 3-nitro-l-tyrosine was used for a more precise quantification. The sensitivity of the present method was demonstrated with lower limits of quantification of 0.6 × 10-3 μmol/L for neopterin, 0.725 μmol/L for tryptophan, 0.12 μmol/L for creatinine, 0.18 μmol/L for uric acid, and 0.135 μmol/L for kynurenine. The method was validated with 67 real-life saliva samples collected from patients suffering from breast, ovarian, colorectal, and renal cancer, and 19 saliva samples from patients with periodontal diseases and allowed monitoring of inflammatory response.
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Affiliation(s)
- Andrea Vernerová
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203/8, 500 05, Hradec Králové, Czech Republic; Department of Clinical Biochemistry and Diagnostics, University Hospital, Sokolská 581, Hradec Králové, 500 05, Czech Republic
| | - Lenka Kujovská Krčmová
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203/8, 500 05, Hradec Králové, Czech Republic; Department of Clinical Biochemistry and Diagnostics, University Hospital, Sokolská 581, Hradec Králové, 500 05, Czech Republic.
| | - Ondřej Heneberk
- Department of Dentistry, Faculty of Medicine in Hradec Králové, Charles University, University Hospital, Sokolská 581, Hradec Králové, 500 05, Czech Republic
| | - Vladimíra Radochová
- Department of Dentistry, Faculty of Medicine in Hradec Králové, Charles University, University Hospital, Sokolská 581, Hradec Králové, 500 05, Czech Republic
| | - Ondřej Strouhal
- Department of Oncology, Palacký University, Faculty of Medicine and Dentistry, Olomouc, I.P. Pavlova 6, 779 00, Olomouc, Czech Republic
| | - Adam Kašparovský
- Department of Oncology, Palacký University, Faculty of Medicine and Dentistry, Olomouc, I.P. Pavlova 6, 779 00, Olomouc, Czech Republic
| | - Bohuslav Melichar
- Department of Oncology, Palacký University, Faculty of Medicine and Dentistry, Olomouc, I.P. Pavlova 6, 779 00, Olomouc, Czech Republic
| | - František Švec
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203/8, 500 05, Hradec Králové, Czech Republic
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Shilov YE, Miroshnichenko II. [Neopterin as a potential biomarker in neuropsychiatry]. Zh Nevrol Psikhiatr Im S S Korsakova 2020; 120:125-129. [PMID: 33244968 DOI: 10.17116/jnevro2020120101125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The importance of finding predictors or biomarkers of neuropsychiatric pathology, as well as methods of its prevention, treatment and early diagnosis is beyond question. The level of neopterin in body fluids is one of the possible biomarkers. Increased levels of neopterin in biological fluids (e.g., serum, cerebrospinal fluid or urine) are closely associated with various diseases associated with cellular immune response. The data presented in the review indicate the relevance of the study of neopterin concentrations in body fluids in patients with mental illness for the development of diagnostic and prognostic tests or as a pharmacodynamic marker of drug action.
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Affiliation(s)
- Yu E Shilov
- Mental Health Research Center, Moscow, Russia
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21
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Zhao Y, Wang B, Liu J, Sun P, Liu H. An overview on the methods of determining the activity of Indoleamine 2, 3-Dioxygenase 1. J Drug Target 2018; 27:724-731. [DOI: 10.1080/1061186x.2018.1523416] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Yuandi Zhao
- Collaborative Innovation Center of New Drug Research and Safety, Henan Province, PR China
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou, Henan Province, PR China
- Key Laboratory of Henan Province for Drug Quality and Evaluation Zhengzhou University, Zhengzhou, Henan Province, PR China
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, PR China
| | - Bo Wang
- Collaborative Innovation Center of New Drug Research and Safety, Henan Province, PR China
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou, Henan Province, PR China
- Key Laboratory of Henan Province for Drug Quality and Evaluation Zhengzhou University, Zhengzhou, Henan Province, PR China
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, PR China
| | - Jinzhi Liu
- Collaborative Innovation Center of New Drug Research and Safety, Henan Province, PR China
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou, Henan Province, PR China
- Key Laboratory of Henan Province for Drug Quality and Evaluation Zhengzhou University, Zhengzhou, Henan Province, PR China
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, PR China
| | - Pei Sun
- Collaborative Innovation Center of New Drug Research and Safety, Henan Province, PR China
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou, Henan Province, PR China
- Key Laboratory of Henan Province for Drug Quality and Evaluation Zhengzhou University, Zhengzhou, Henan Province, PR China
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, PR China
| | - Hongmin Liu
- Collaborative Innovation Center of New Drug Research and Safety, Henan Province, PR China
- Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou, Henan Province, PR China
- Key Laboratory of Henan Province for Drug Quality and Evaluation Zhengzhou University, Zhengzhou, Henan Province, PR China
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, PR China
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Determination of kynurnine and tryptophan, biomarkers of indoleamine 2,3-dioxygenase by LC-MS/MS in plasma and tumor. Bioanalysis 2018; 10:1335-1344. [PMID: 30130131 DOI: 10.4155/bio-2018-0041] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
AIM Tryptophan (Trp) and kynurnine (Kyn) are a pair of biomarkers for indoleamine 2,3-dioxygenase which closely related to the tumor immune escape. To evaluate the effect of drugs on the indoleamine 2,3-dioxygenase activity, the specific and accurate LC-MS/MS methods were developed and validated for simultaneous determination Kyn and Trp in mouse plasma and tumor tissues using surrogate analytes Kyn-d4 and Trp-d5 calibrators. RESULTS Plasma and tumor homogenates samples were pretreated with the solid phase extraction which assured the method having high recovery (>90% in plasma and >80% in tumor) and no matrix effect. The methods were validated for specificity, linearity, accuracy and precision, recovery, matrix effect and stability using surrogate analytes Kyn-d4 and Trp-d5 in authentic matrices. CONCLUSION The validated methods have been successfully applied to the pharmacodynamic study of INCB024360 in CT26 tumor bearing mice after single dose and multiple dosing.
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Mergola L, Orabona C, Albini E, Vasapollo G, Scorrano S, Del Sole R. Urinary l
-kynurenine quantification and selective extraction through a molecularly imprinted solid-phase extraction device. J Sep Sci 2018; 41:3204-3212. [DOI: 10.1002/jssc.201800458] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 06/12/2018] [Accepted: 06/15/2018] [Indexed: 12/27/2022]
Affiliation(s)
- Lucia Mergola
- Department of Engineering for Innovation; University of Salento; Lecce Italy
| | - Ciriana Orabona
- Section of Pharmacology, Department of Experimental Medicine; University of Perugia; Perugia Italy
| | - Elisa Albini
- Section of Pharmacology, Department of Experimental Medicine; University of Perugia; Perugia Italy
| | - Giuseppe Vasapollo
- Department of Engineering for Innovation; University of Salento; Lecce Italy
| | - Sonia Scorrano
- Department of Engineering for Innovation; University of Salento; Lecce Italy
| | - Roberta Del Sole
- Department of Engineering for Innovation; University of Salento; Lecce Italy
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Neopterin, kynurenine and tryptophan as new biomarkers for early detection of rectal anastomotic leakage. Wideochir Inne Tech Maloinwazyjne 2018; 13:44-52. [PMID: 29643957 PMCID: PMC5890852 DOI: 10.5114/wiitm.2018.73363] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 12/03/2017] [Indexed: 02/07/2023] Open
Abstract
Introduction At present, there are no strong predictors, nor a useful scoring system, that clearly identifies patients at risk for anastomotic leakage. Aim This study aimed to investigate a new method that assesses this risk by monitoring levels of neopterin, tryptophan, and kynurenine, in bodily fluids. Material and methods This prospective study included patients who underwent elective rectal resection for carcinoma. The basic condition for inclusion was rectal anastomosis using the double-stapling technique. Preoperative levels of neopterin, tryptophan, kynurenine, and their ratios, were assessed with blood and urine samples. These levels were then monitored for 6 postoperative days in venous blood, urine, and abdominal drainage fluid. Results A total of 42 patients were enrolled in the study. Thirty-six patients underwent a laparoscopic resection and 6 patients had an open procedure. No differences were found among neopterin, tryptophan, and kynurenine serum levels. However, the groups were observed to have significant differences in the urinary neopterin/creatinine ratio: the preoperative neopterin/creatinine ratio was 139.5 μmol/mol in the group with leakage, vs 114.8 μmol/mol in the group without complications, p = 0.037. The same results were observed during the postoperative period, p = 0.012. Additionally, the group with complications had a higher mean value of neopterin in drainage fluid, p = 0.048. Conclusions Our study demonstrated that high preoperative levels of urinary neopterin could be interpreted as a risk for anastomotic leakage. Moreover, pathological levels of neopterin in urine and abdominal drainage fluid could be useful for early identification of anastomotic leakage during the postoperative period prior to its clinical development.
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25
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Sadok I, Gamian A, Staniszewska MM. Chromatographic analysis of tryptophan metabolites. J Sep Sci 2017; 40:3020-3045. [PMID: 28590049 PMCID: PMC5575536 DOI: 10.1002/jssc.201700184] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 05/15/2017] [Accepted: 05/24/2017] [Indexed: 12/14/2022]
Abstract
The kynurenine pathway generates multiple tryptophan metabolites called collectively kynurenines and leads to formation of the enzyme cofactor nicotinamide adenine dinucleotide. The first step in this pathway is tryptophan degradation, initiated by the rate-limiting enzymes indoleamine 2,3-dioxygenase, or tryptophan 2,3-dioxygenase, depending on the tissue. The balanced kynurenine metabolism, which has been a subject of multiple studies in last decades, plays an important role in several physiological and pathological conditions such as infections, autoimmunity, neurological disorders, cancer, cataracts, as well as pregnancy. Understanding the regulation of tryptophan depletion provide novel diagnostic and treatment opportunities, however it requires reliable methods for quantification of kynurenines in biological samples with complex composition (body fluids, tissues, or cells). Trace concentrations, interference of sample components, and instability of some tryptophan metabolites need to be addressed using analytical methods. The novel separation approaches and optimized extraction protocols help to overcome difficulties in analyzing kynurenines within the complex tissue material. Recent developments in chromatography coupled with mass spectrometry provide new opportunity for quantification of tryptophan and its degradation products in various biological samples. In this review, we present current accomplishments in the chromatographic methodologies proposed for detection of tryptophan metabolites and provide a guide for choosing the optimal approach.
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Affiliation(s)
- Ilona Sadok
- Laboratory of Separation and Spectroscopic Method Applications, Centre for Interdisciplinary ResearchThe John Paul II Catholic University of LublinLublinPoland
| | - Andrzej Gamian
- Laboratory of Medical MicrobiologyHirszfeld Institute of Immunology and Experimental TherapyPolish Academy of SciencesWroclawPoland
- Department of Medical BiochemistryWroclaw Medical UniversityWroclawPoland
| | - Magdalena Maria Staniszewska
- Laboratory of Separation and Spectroscopic Method Applications, Centre for Interdisciplinary ResearchThe John Paul II Catholic University of LublinLublinPoland
- Laboratory of Medical MicrobiologyHirszfeld Institute of Immunology and Experimental TherapyPolish Academy of SciencesWroclawPoland
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26
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Viswanath KB, Devasenathipathy R, Wang SF, Vasantha VS. A New Route for the Enzymeless Trace Level Detection of Creatinine Based on Reduced Graphene Oxide/Silver Nanocomposite Biosensor. ELECTROANAL 2016. [DOI: 10.1002/elan.201600425] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- K. Balaji Viswanath
- Department of Natural Products Chemistry; Madurai Kamaraj University; Madurai India
| | - Rajkumar Devasenathipathy
- Department of Materials and Mineral Resources Engineering; National Taipei University of Technology; Taipei Taiwan
| | - Sea-Fue Wang
- Department of Materials and Mineral Resources Engineering; National Taipei University of Technology; Taipei Taiwan
| | - V. S. Vasantha
- Department of Natural Products Chemistry; Madurai Kamaraj University; Madurai India
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Huang K, Li M, Li H, Li M, Jiang Y, Fang X. Accurate quantification of creatinine in serum by coupling a measurement standard to extractive electrospray ionization mass spectrometry. Sci Rep 2016; 6:19283. [PMID: 26759071 PMCID: PMC4725369 DOI: 10.1038/srep19283] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 12/07/2015] [Indexed: 11/17/2022] Open
Abstract
Ambient ionization (AI) techniques have been widely used in chemistry, medicine, material science, environmental science, forensic science. AI takes advantage of direct desorption/ionization of chemicals in raw samples under ambient environmental conditions with minimal or no sample preparation. However, its quantitative accuracy is restricted by matrix effects during the ionization process. To improve the quantitative accuracy of AI, a matrix reference material, which is a particular form of measurement standard, was coupled to an AI technique in this study. Consequently the analyte concentration in a complex matrix can be easily quantified with high accuracy. As a demonstration, this novel method was applied for the accurate quantification of creatinine in serum by using extractive electrospray ionization (EESI) mass spectrometry. Over the concentration range investigated (0.166 ~ 1.617 μg/mL), a calibration curve was obtained with a satisfactory linearity (R2 = 0.994), and acceptable relative standard deviations (RSD) of 4.6 ~ 8.0% (n = 6). Finally, the creatinine concentration value of a serum sample was determined to be 36.18 ± 1.08 μg/mL, which is in excellent agreement with the certified value of 35.16 ± 0.39 μg/mL.
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Affiliation(s)
- Keke Huang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Ming Li
- Chemistry Department, National Institute of Metrology, Beijing, 100013, P. R. China
| | - Hongmei Li
- Chemistry Department, National Institute of Metrology, Beijing, 100013, P. R. China
| | - Mengwan Li
- Chemistry Department, National Institute of Metrology, Beijing, 100013, P. R. China
| | - You Jiang
- Chemistry Department, National Institute of Metrology, Beijing, 100013, P. R. China
| | - Xiang Fang
- Chemistry Department, National Institute of Metrology, Beijing, 100013, P. R. China
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Fast and sensitive HPLC method for the determination of neopterin, kynurenine and tryptophan in amniotic fluid, malignant effusions and wound exudates. Bioanalysis 2015; 7:2751-62. [DOI: 10.4155/bio.15.175] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Aim: A new HPLC method for the determination of neopterin, kynurenine and tryptophan using a second-generation monolith stationary phase and high-throughput sample preparation procedure based on microplates was developed and fully validated. Materials & methods: As the stationary phase a monolithic C18 Chromolith high-resolution column with dimensions of 4.6 × 100 mm connected to a monolithic 4.6 × 10-mm security guard was used. Separation was achieved using 15 mM phosphate buffer (KH2PO4 +K2HPO4·3H2O at pH 3) and acetonitrile in gradient mode. Results: Target analytes were determined in 5.5 minutes in amniotic fluid, effusions and wound exudates with a limit of quantification (LOQ) of 1.25 nM for neopterin, 2.5 µM for tryptophan and 0.25 µM for kynurenine. Discussion: The method was applied to real clinical sample measurements, and it will be used to monitor neopterin, kynurenine and tryptophan levels in biological fluids to assess the patient response to therapy and clinical status.
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Vonka V, Humlova Z, Klamova H, Kujovska-Krcmova L, Petrackova M, Hamsikova E, Krmencikova-Fliegl M, Duskova M, Roth Z. Kynurenine and uric acid levels in chronic myeloid leukemia patients. Oncoimmunology 2015; 4:e992646. [PMID: 25949913 DOI: 10.4161/2162402x.2014.992646] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 11/24/2014] [Indexed: 01/20/2023] Open
Abstract
Indoleamine 2,3-dioxygenase 1 (IDO1), IDO2 and tryptophan 2,3-dioxygenase (TDO) represent some of the key immune regulators. Their increased activity has been demonstrated in a number of human malignancies but not yet in chronic myeloid leukemia (CML). In the present study, the activity of these enzymes was tested in 29 CML patients and 28 healthy subjects by monitoring the kynurenine (KYN)/tryptophan ratio. Serum samples taken prior to the therapy displayed a highly significant difference in KYN levels between the patient and control groups. However, increased KYN levels were detected in only 13 (44.8%) of these CML patients. The KYN levels in pretreatment sera of the patients correlated with the tumor burden. There was also a strong correlation between KYN levels and uric acid levels (UA). This suggests but does not prove the possible involvement of UA in activating IDO family of enzymes. Whenever tested, the increased KYN levels normalized in the course of the therapy. Patients with normal KYN levels in their pretreatment sera and subsequently treated with interferon-α, showed a transitory increase in their KYN levels. The present data indicate that CML should be added to the malignancies with an increased activity of the IDO family of enzymes and suggest that IDO inhibitors may be used in the treatment of CML patients.
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Key Words
- 3-dioxygenase
- CML, chronic myeloid leukemia
- IDO, indoleamine 2, 3-dioxygenase
- INFα, interferon- α
- INFγ, interferon-γ
- KTI, kynurenine/tryptophan index
- KYN, kynurenine
- NK, natural killer
- PBMC, peripheral blood mononuclear cells
- Ph+, Philadelphia chromosome positive
- T regs, regulatory T cells
- TDO, tryptophan 2, 3-dioxygenase
- TKI, tyrosine-kinase inhibitors
- TRY, tryptophan
- UA, uric acid.
- chronic myeloid leukemia
- indoleamine 2
- kynurenine
- tryptophan metabolism
- uric acid
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Affiliation(s)
- Vladimir Vonka
- Department of Experimental Virology; Institute of Haematology and Blood Transfusion ; Prague, Czech Republic
| | - Zuzana Humlova
- Institute of Immunology; First Medical Faculty; Charles University ; Prague; Czech Republic ; Department of Immunology and Microbiology; 1st Medical Faculty; Charles University, and the General Teaching Hospital in Prague ; Prague, Czech Republic
| | - Hana Klamova
- Department of Experimental Virology; Institute of Haematology and Blood Transfusion ; Prague, Czech Republic
| | - Lenka Kujovska-Krcmova
- Department of Analytical Chemistry; Faculty of Pharmacy; Charles University ; Hradec Králové, Czech Republic ; III. Internal Gerontometabolic Clinic; University Hospital ; Hradec Králové, Czech Republic
| | - Martina Petrackova
- Department of Experimental Virology; Institute of Haematology and Blood Transfusion ; Prague, Czech Republic
| | - Eva Hamsikova
- Department of Experimental Virology; Institute of Haematology and Blood Transfusion ; Prague, Czech Republic
| | - Monika Krmencikova-Fliegl
- Department of Experimental Virology; Institute of Haematology and Blood Transfusion ; Prague, Czech Republic
| | - Martina Duskova
- Department of Experimental Virology; Institute of Haematology and Blood Transfusion ; Prague, Czech Republic
| | - Zdenek Roth
- Department of Biostatistics; State Institute of Health ; Prague, Czech Republic
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Melichar B. Laboratory medicine and medical oncology: the tale of two Cinderellas. Clin Chem Lab Med 2014; 51:99-112. [PMID: 22987835 DOI: 10.1515/cclm-2012-0496] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Accepted: 08/01/2012] [Indexed: 11/15/2022]
Abstract
Cancer represents a leading cause of death in the developed countries. The past 50 years have witnessed major progress in both laboratory medicine and clinical oncology that has translated into improved prognosis of cancer patients. From the humble beginnings as unrelated specialties, major advances in the understanding of molecular bases of cancer progression led to increased interactions between laboratory medicine and clinical (mostly medical) oncology. Laboratory medicine is now an integral part of the management of cancer patients. The many aspects of the role of laboratory medicine in clinical oncology include the determination of biomarkers that are used in establishing the diagnosis, predicting response to therapy or prognosis, study of the host response to tumor growth, detection of treatment toxicity and determining the concentrations of anticancer drugs.
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Affiliation(s)
- Bohuslav Melichar
- Department of Oncology, Palacký University Medical School and Teaching Hospital, Fakultní nemocnice, Olomouc, Czech Republic.
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31
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Huang L, Guo L, Wan Y, Pan P, Feng L. Simultaneous determination of three potential cancer biomarkers in rat urine by synchronous fluorescence spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 120:595-601. [PMID: 24365397 DOI: 10.1016/j.saa.2013.12.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2013] [Revised: 11/30/2013] [Accepted: 12/01/2013] [Indexed: 06/03/2023]
Abstract
A rapid, simple, sensitive and accurate method for the simultaneous determination of three potential cancer biomarkers [tryptophan (TRP), isoxanthopterin (ISO) and xanthopterin (XAN)] in rat urine with synchronous fluorescence spectroscopy has been developed. In order to eliminate the interference in urine samples, the synchronous fluorescence spectra were obtained with Δλ=70 nm in a KH2PO4-NaOH buffer solution (pH=8.0). The detected wavelengths of quantitative analysis were set at 275 nm for TRP, 325 nm for ISO and 400 nm for XAN, respectively. Under the optimized conditions, the limits of the detection of the three compounds were 2.73 ng/mL, 0.52 ng/mL and 0.94 ng/mL, respectively. The recoveries were in the range of 80.5-98.0%, with the coefficient of variation between 0.62% and 2.48%. The proposed method has been applied to the simultaneous determination of TRP, ISO and XAN in rat urines of bladder cancer group and control group. The determination results showed that the average level of TRP, ISO and XAN had different change trends with the growth of the tumor. The three analytes could be used as potential biomarkers for noninvasive diagnosis of different stage of bladder cancer. However, more data are needed to support this hypothesis.
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Affiliation(s)
- Lingling Huang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, People's Republic of China; Center of Analysis and Testing, Nanchang University, Nanchang, Jiangxi 330047, People's Republic of China
| | - Lan Guo
- Center of Analysis and Testing, Nanchang University, Nanchang, Jiangxi 330047, People's Republic of China.
| | - Yiqun Wan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, People's Republic of China; Center of Analysis and Testing, Nanchang University, Nanchang, Jiangxi 330047, People's Republic of China.
| | - Pingping Pan
- Center of Analysis and Testing, Nanchang University, Nanchang, Jiangxi 330047, People's Republic of China
| | - Lei Feng
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, People's Republic of China
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Krcmova L, Solichova D, Solich P. Microplates in liquid chromatography – New solution in clinical research? – A review. Talanta 2013; 115:973-9. [DOI: 10.1016/j.talanta.2013.06.048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 06/20/2013] [Accepted: 06/25/2013] [Indexed: 10/26/2022]
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33
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Klockow JL, Glass TE. Development of a fluorescent chemosensor for the detection of kynurenine. Org Lett 2012; 15:235-7. [PMID: 23265271 DOI: 10.1021/ol303025m] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Kynurenine, a metabolite of tryptophan, is known to contribute to cancer progression when overproduced. A method for facile fluorescent sensing of kynurenine using sensor 1 has been developed. When bound at low pH, sensor 1 undergoes a very large bathochromic shift because kynurenine extends the conjugation of the fluorophore. This unusual mechanism of activation provides a 390-fold fluorescence enhancement that is very specific to kynurenine and a wavelength of fluorescence that extends into the red.
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Affiliation(s)
- Jessica L Klockow
- Department of Chemistry, University of Missouri, Columbia, Missouri 65211, USA
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