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Begou O, Lioupi A, Page G, Ahmed S, Stiltz S, Dowell R, Lodge J. An interview with Bioanalysis: speaking with the 2023 Reid bursary award winners - part 2. Bioanalysis 2024. [PMID: 38530226 DOI: 10.4155/bio-2024-0051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2024] Open
Abstract
The 25th edition of the International Reid Bioanalytical Forum (REID) was held at the Cambridge Belfry (Cambourne, UK) between 4 and 7 September 2023 and hosted approximately 100 delegates, the majority of whom were attending the event for their first time. REID encourages early-career researchers to present their work and have a bursary program to help provide them support. At the 2023 event, REID welcomed 15 bursary winners to provide them with the opportunity to participate in their first international meeting, network with their peers and make their first oral, or poster presentation. The bursary winners also had the opportunity to interview with the Bioanalysis journal and their responses to the interview questions are transcribed below in this second part of two.
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Affiliation(s)
- Olga Begou
- Theta Biomarkers, Balkan Center, Thermi, 57001, Greece
| | - Artemis Lioupi
- Aristotle University of Thessaloniki (AUTh), Thessaloniki, 541 24, Greece
| | | | - Shwan Ahmed
- Shirley Technologies Limited, Manchester, M17 1QS, UK
| | - Svenja Stiltz
- Nuvisan Pharma Services GmbH, Neu-Ulm, 89231, Germany
| | | | - Jack Lodge
- Expert Publishing Medicine, London, N3 1QB, UK
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Meikopoulos T, Begou O, Gika H, Theodoridis G. Dried urine spot (DUS) applied for sampling prior to the accurate HILIC-MS/MS determination of 14 amino acids. Talanta 2024; 269:125489. [PMID: 38096631 DOI: 10.1016/j.talanta.2023.125489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 11/20/2023] [Accepted: 11/24/2023] [Indexed: 01/05/2024]
Abstract
Urine amino acid analysis has proven valuable for an array of clinical or nutritional studies. However, transportation of liquid urine sample shows certain disadvantages, such as possible leakage, need for cold chain and thus higher costs for their transport. Utilization of dried urine spots (DUS) can offer an interesting alternative. In the present study, a method was developed for the determination of 14 amino acids in DUS including the testing of in-house collection device and drying of the sample before analysis. Normal filter paper was tested as the means for sample collection. Absorption and extraction experiments were performed on 3 different types of filter paper, with 3 different extraction solvents and two different solvent volumes. The solvents used were mixtures of common analytical solvents (methanol, water, acetonitrile) using total volumes of 1 mL and 1.5 mL. Finally, 1 mL of acetonitrile: methanol: water 40:40:20 (v/v/v) was chosen as the optimal system. Analysis was performed on a UHPLC-MS system, using stable isotope labeled internal standards. Method validation included the study of limits of detection (LOD) and quantification (LOQ), linearity ranges, precision, matrix effect, extraction recovery, precision, and stability for each analyte. The obtained results were satisfactory, thus enabling application of the proposed method as an alternative to the analysis of liquid urine. Further utilization of DUS can offer advantages by enabling patient centric sampling even in long distances far from the analytical laboratories.
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Affiliation(s)
- Thomas Meikopoulos
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece; BIOMIC_Auth, Center for Interdisciplinary Research, and Innovation (CIRI-AUTH), Balkan Center, Buldings A&B, Thessaloniki, 10th Km Thessaloniki-Thermi Rd, P.O. Box 8318, GR, 57001, Greece
| | - Olga Begou
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece; ThetaBiomarkers, Center for Interdisciplinary Research, and Innovation (CIRI-AUTH), Balkan Center, 10th Km Thessaloniki-Thermi Rd, P.O. Box 8318, GR, 57001, Greece.
| | - Helen Gika
- BIOMIC_Auth, Center for Interdisciplinary Research, and Innovation (CIRI-AUTH), Balkan Center, Buldings A&B, Thessaloniki, 10th Km Thessaloniki-Thermi Rd, P.O. Box 8318, GR, 57001, Greece; Laboratory of Forensic Medicine and Toxicology, Medical School, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Georgios Theodoridis
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece; BIOMIC_Auth, Center for Interdisciplinary Research, and Innovation (CIRI-AUTH), Balkan Center, Buldings A&B, Thessaloniki, 10th Km Thessaloniki-Thermi Rd, P.O. Box 8318, GR, 57001, Greece; FoodOmicsGR Research Infrastructure, AUTh Node, Center for Interdisciplinary Research, And Innovation (CIRI-AUTH), Balkan Center B1.4, 10th Km Thessaloniki-Thermi Rd, P.O. Box 8318, 57001, Thessaloniki, Greece.
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Meikopoulos T, Gika H, Theodoridis G, Begou O. Detection of 26 Drugs of Abuse and Metabolites in Quantitative Dried Blood Spots by Liquid Chromatography-Mass Spectrometry. Molecules 2024; 29:975. [PMID: 38474487 DOI: 10.3390/molecules29050975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/11/2024] [Accepted: 02/16/2024] [Indexed: 03/14/2024] Open
Abstract
A method was developed for the determination of 26 drugs of abuse from different classes, including illicit drugs in quantitative dried blood spots (qDBSs), with the aim to provide a convenient method for drug testing by using only 10 μL of capillary blood. A satisfactory limit of quantification (LOQ) of 2.5 ng/mL for 9 of the compounds and 5 ng/mL for 17 of the compounds and a limit of detection (LOD) of 0.75 ng/mL for 9 of the compounds and 1.5 ng/mL for 17 of the compounds were achieved for all analytes. Reversed-phase liquid chromatography was applied on a C18 column coupled to MS, providing selective detections with both +ESI and -ESI modes. Extraction from the qDBS was performed using AcN-MeOH, 1:1 (v/v), with recovery ranging from 84.6% to 106%, while no significant effect of the hematocrit was observed. The studied drugs of abuse were found to be stable over five days under three different storage conditions (at ambient temperature 21 °C, at -20 °C, and at 35 °C), thus offering a highly attractive approach for drug screening by minimally invasive sampling for individuals that could find application in forensic toxicology analysis.
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Affiliation(s)
- Thomas Meikopoulos
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- BIOMIC_Auth, Center for Interdisciplinary Research, and Innovation (CIRI-AUTH), 57001 Thessaloniki, Greece
| | - Helen Gika
- BIOMIC_Auth, Center for Interdisciplinary Research, and Innovation (CIRI-AUTH), 57001 Thessaloniki, Greece
- Laboratory of Forensic Medicine & Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Georgios Theodoridis
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- BIOMIC_Auth, Center for Interdisciplinary Research, and Innovation (CIRI-AUTH), 57001 Thessaloniki, Greece
- ThetaBiomarkers, Center for Interdisciplinary Research, and Innovation (CIRI-AUTH), Balkan Center, 10th Km Thessaloniki-Thermi Rd., P.O. Box 8318, 57001 Thessaloniki, Greece
| | - Olga Begou
- BIOMIC_Auth, Center for Interdisciplinary Research, and Innovation (CIRI-AUTH), 57001 Thessaloniki, Greece
- ThetaBiomarkers, Center for Interdisciplinary Research, and Innovation (CIRI-AUTH), Balkan Center, 10th Km Thessaloniki-Thermi Rd., P.O. Box 8318, 57001 Thessaloniki, Greece
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Tzelepi V, Gika H, Begou O, Timotheadou E. The Contribution of Lipidomics in Ovarian Cancer Management: A Systematic Review. Int J Mol Sci 2023; 24:13961. [PMID: 37762264 PMCID: PMC10531399 DOI: 10.3390/ijms241813961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 08/30/2023] [Accepted: 09/09/2023] [Indexed: 09/29/2023] Open
Abstract
Lipidomics is a comprehensive study of all lipid components in living cells, serum, plasma, or tissues, with the aim of discovering diagnostic, prognostic, and predictive biomarkers for diseases such as malignant tumors. This systematic review evaluates studies, applying lipidomics to the diagnosis, prognosis, prediction, and differentiation of malignant and benign ovarian tumors. A literature search was performed in PubMed, Science Direct, and SciFinder. Only publications written in English after 2012 were included. Relevant citations were identified from the reference lists of primary included studies and were also included in our list. All studies included referred to the application of lipidomics in serum/plasma samples from human cases of OC, some of which also included tumor tissue samples. In some of the included studies, metabolome analysis was also performed, in which other metabolites were identified in addition to lipids. Qualitative data were assessed, and the risk of bias was determined using the ROBINS-I tool. A total of twenty-nine studies were included, fifteen of which applied non-targeted lipidomics, seven applied targeted lipidomics, and seven were reviews relevant to our objectives. Most studies focused on the potential application of lipidomics in the diagnosis of OC and showed that phospholipids and sphingolipids change most significantly during disease development. In conclusion, this systematic review highlights the potential contribution of lipids as biomarkers in OC management.
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Affiliation(s)
- Vasiliki Tzelepi
- Department of Oncology, “Papageorgiou” General Hospital, 56429 Thessaloniki, Greece;
| | - Helen Gika
- Biomic_Auth, Bioanalysis and Omics Lab, Centre for Interdisciplinary Research of Aristotle University of Thessaloniki, Innovation Area of Thessaloniki, 57001 Thermi, Greece; (H.G.); (O.B.)
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Olga Begou
- Biomic_Auth, Bioanalysis and Omics Lab, Centre for Interdisciplinary Research of Aristotle University of Thessaloniki, Innovation Area of Thessaloniki, 57001 Thermi, Greece; (H.G.); (O.B.)
- Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Eleni Timotheadou
- Department of Oncology, “Papageorgiou” General Hospital, 56429 Thessaloniki, Greece;
- Department of Medical Oncology, Aristotle University of Thessaloniki School of Medicine, 54124 Thessaloniki, Greece
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Besiri K, Begou O, Deda O, Bataka E, Nakas C, Gika H, Kontou A, Agakidou E, Sarafidis K. A Cohort Study of Gastric Fluid and Urine Metabolomics for the Prediction of Survival in Severe Prematurity. Metabolites 2023; 13:708. [PMID: 37367866 DOI: 10.3390/metabo13060708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 05/23/2023] [Accepted: 05/26/2023] [Indexed: 06/28/2023] Open
Abstract
Predicting survival in very preterm infants is critical in clinical medicine and parent counseling. In this prospective cohort study involving 96 very preterm infants, we evaluated whether the metabolomic analysis of gastric fluid and urine samples obtained shortly after birth could predict survival in the first 3 and 15 days of life (DOL), as well as overall survival up to hospital discharge. Gas chromatography-mass spectrometry (GC-MS) profiling was used. Uni- and multivariate statistical analyses were conducted to evaluate significant metabolites and their prognostic value. Differences in several metabolites were identified between survivors and non-survivors at the time points of the study. Binary logistic regression showed that certain metabolites in gastric fluid, including arabitol, and succinic, erythronic and threonic acids, were associated with 15 DOL and overall survival. Gastric glyceric acid was also associated with 15 DOL survival. Urine glyceric acid could predict survival in the first 3 DOL and overall survival. In conclusion, non-surviving preterm infants exhibited a different metabolic profile compared with survivors, demonstrating significant discrimination with the use of GC-MS-based gastric fluid and urine analyses. The results of this study support the usefulness of metabolomics in developing survival biomarkers in very preterm infants.
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Affiliation(s)
- Konstantia Besiri
- 1st Department of Neonatology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Olga Begou
- School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Biomic_AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, B1.4, 57001 Thermi, Greece
| | - Olga Deda
- School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Biomic_AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, B1.4, 57001 Thermi, Greece
| | - Evmorfia Bataka
- Laboratory of Biometry, University of Thessaly, N. Ionia, 38446 Volos, Greece
| | - Christos Nakas
- Laboratory of Biometry, University of Thessaly, N. Ionia, 38446 Volos, Greece
- Department of Clinical Chemistry, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland
| | - Helen Gika
- Biomic_AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, B1.4, 57001 Thermi, Greece
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Angeliki Kontou
- 1st Department of Neonatology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Eleni Agakidou
- 1st Department of Neonatology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Kosmas Sarafidis
- 1st Department of Neonatology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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Deda O, Begou O, Gika H, Theodoridis G, Agapiou A. Optimization of Carob Products Preparation for Targeted LC-MS/MS Metabolomics Analysis. Metabolites 2023; 13:metabo13050645. [PMID: 37233685 DOI: 10.3390/metabo13050645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/24/2023] [Accepted: 05/04/2023] [Indexed: 05/27/2023] Open
Abstract
Carob (Ceratonia siliqua) is an exceptional source of significant bioactive compounds with great economic importance in the Mediterranean region, where it is widely cultivated. Carob fruit is used for the production of a variety of products and commodities such as powder, syrup, coffee, flour, cakes, and beverages. There is growing evidence of the beneficial effects of carob and the products made from it on a range of health problems. Therefore, metabolomics could be used to explore the nutrient-rich compounds of carob. Sample preparation is a crucial step in metabolomics-based analysis and has a great impact on the quality of the data obtained. Herein, sample preparation of carob syrup and powder was optimized, to enable highly efficient metabolomics-based HILIC-MS/MS analysis. Pooled powder and syrup samples were extracted under different conditions by adjusting pH, solvent type, and sample weight to solvent volume ratio (Wc/Vs). The metabolomics profiles obtained were evaluated using the established criteria of total area and number of maxima. It was observed that the Wc/Vs ratio of 1:2 resulted in the highest number of metabolites, regardless of solvent type or pH. Aqueous acetonitrile with a Wc/Vs ratio of 1:2 satisfied all established criteria for both carob syrup and powder samples. However, when the pH was adjusted, basic aqueous propanol 1:2 Wc/Vs and acidic aqueous acetonitrile 1:2 Wc/Vs provided the best results for syrup and powder, respectively. We strongly believe that the current study could support the standardization of the metabolomics sample preparation process to enable more efficient LC-MS/MS carob analysis.
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Affiliation(s)
- Olga Deda
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Biomic Auth, Bioanalysis and Omics Laboratory, Centre for Interdisciplinary Research of Aristotle University of Thessaloniki, Innovation Area of Thessaloniki, 57001 Thermi, Greece
| | - Olga Begou
- Biomic Auth, Bioanalysis and Omics Laboratory, Centre for Interdisciplinary Research of Aristotle University of Thessaloniki, Innovation Area of Thessaloniki, 57001 Thermi, Greece
- Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Helen Gika
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Biomic Auth, Bioanalysis and Omics Laboratory, Centre for Interdisciplinary Research of Aristotle University of Thessaloniki, Innovation Area of Thessaloniki, 57001 Thermi, Greece
| | - Georgios Theodoridis
- Biomic Auth, Bioanalysis and Omics Laboratory, Centre for Interdisciplinary Research of Aristotle University of Thessaloniki, Innovation Area of Thessaloniki, 57001 Thermi, Greece
- Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Agapios Agapiou
- Department of Chemistry, University of Cyprus, P.O. Box 20537, Nicosia 1678, Cyprus
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Meikopoulos T, Begou O, Theodoridis G, Gika H. Ceramides biomarkers determination in quantitative dried blood spots by UHPLC-MS/MS. Anal Chim Acta 2023; 1255:341131. [PMID: 37032061 DOI: 10.1016/j.aca.2023.341131] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/10/2023] [Accepted: 03/22/2023] [Indexed: 03/30/2023]
Abstract
A method was developed for the analysis of four ceramide species; namely C16:0, C18:0, C24:0 and C24:1 in quantitative Dried Blood Samples (qDBS) by LC-MS/MS and validated with the aim to give prominence to an interesting application of at-home blood microsampling for health monitoring. Ceramides, being key-role metabolites implicated in regulation of diverse cellular processes have been considered as emerging biomarkers for different disease states, such as cardiovascular diseases, type 2 diabetes and others. Here, Capitainer device was utilized to provide accurate and consistent volumes of samples, ideal for accurate determinations. The method requires a 10 μL sample offering duplicate analysis by device, is quick and enables the sample collection by distance as it was proved that ceramides under study were stable at various conditions, including RT. Intra and inter-day accuracy of the determination were estimated between 87.6% - 113% and 90.6% -113%, respectively, while intra- and inter-day precision were calculated from 0.2% to 9.9% %RSD and 0.1% - 8.0% %RSD, respectively. The data acquired by ten healthy individuals indicated that circulating ceramides are at higher levels in whole blood taken from the fingertip in comparison to the reported values in plasma or serum.
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Lantzanaki M, Veneti S, Mintziori G, Begou O, Pappas PD, Gika H, Goulis DG, Bili H, Taousani E, Vavilis D. Plasma Ceramide Concentrations in Full-Term Pregnancies Complicated with Gestational Diabetes Mellitus: A Case-Control Study. Metabolites 2022; 12:1123. [PMID: 36422262 PMCID: PMC9698071 DOI: 10.3390/metabo12111123] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/08/2022] [Accepted: 11/12/2022] [Indexed: 08/17/2023] Open
Abstract
Ceramides, a sphingolipid group that acts as a messenger in cellular differentiation, proliferation, apoptosis and senescence, have been associated with cardiovascular disease and type 2 diabetes. The evidence for an association between ceramides and gestational diabetes mellitus (GDM) is scarce. This case-control study aimed to compare women with GDM with healthy, pregnant women in terms of plasma ceramide concentrations at the time of delivery. Ninety-two pregnant women were included in this case-control study, 29 in the GDM group and 63 in the control group. All women were admitted to a tertiary academic hospital for a full-term delivery. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) was applied for the quantification of four molecular ceramides, namely Cer d18:1/16:0 (Cer16:0), Cer d18:1/18:0 (Cer18:0), Cer d18:1/24:0 (Cer24:0) and Cer d18:1/24:1 (Cer24:1) in plasma samples. The raw chromatographic data obtained from the LC-MS/MS analysis were processed using Analyst SCIEX (AB Sciex Pte. Ltd., USA). In a univariate statistical analysis, Cer24:0 concentration was significantly lower in the GDM group compared with the control group (p = 0.01). The present study demonstrated lower Cer24:0 concentrations in pregnancies complicated by GDM. Further prospective studies are required to enhance the results of this study.
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Affiliation(s)
- Maria Lantzanaki
- 1st Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Stavroula Veneti
- 1st Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Gesthimani Mintziori
- 1st Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Olga Begou
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Biomic AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, 10th km Thessaloniki-Thermi Road, 57001 Thessaloniki, Greece
| | - Panagiotis D. Pappas
- 1st Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Helen Gika
- Biomic AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, 10th km Thessaloniki-Thermi Road, 57001 Thessaloniki, Greece
- Laboratory of Forensic Medicine & Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Dimitrios G. Goulis
- 1st Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Helen Bili
- 1st Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Eleftheria Taousani
- Department of Midwifery, Faculty of Health Sciences, International Hellenic University, Alexander Campus, 57001 Thessaloniki, Greece
| | - Dimitrios Vavilis
- 1st Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Medical School, University of Cyprus, Nicosia 2408, Cyprus
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Thomaidou A, Deda O, Begou O, Lioupi A, Kontou A, Gika H, Agakidou E, Theodoridis G, Sarafidis K. A Prospective, Case-Control Study of Serum Metabolomics in Neonates with Late-Onset Sepsis and Necrotizing Enterocolitis. J Clin Med 2022; 11:jcm11185270. [PMID: 36142917 PMCID: PMC9505627 DOI: 10.3390/jcm11185270] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 08/31/2022] [Accepted: 09/01/2022] [Indexed: 11/16/2022] Open
Abstract
Late-onset sepsis (LOS) and necrotizing enterocolitis (NEC) are major causes of neonatal morbidity and mortality. In this prospective, case-control study, we evaluated the metabolic profile of neonates with LOS and NEC. Blood samples were collected from 15 septic neonates and 17 neonates with NEC at the clinical suspicion of the specific diseases. Sixteen gestational and postnatal age-matched neonates without sepsis/NEC served as controls. Serum metabolic profiles were assessed using liquid chromatography–quadrupole time-of-flight mass spectrometry. Metabolomic analysis revealed significant differences in the metabolic profile of neonates with LOS or NEC compared to controls. More specifically, a number of molecules possibly identified as phosphatidylcholines or lysophosphatidylcholines were found to be significantly reduced both in neonates with LOS and those with NEC compared to controls. Additionally, L-carnitine could efficiently discriminate NEC cases from controls. The results of the current study suggest that certain phospholipids and their derivatives could possibly be used as biomarkers for the early detection of LOS and NEC.
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Affiliation(s)
- Agathi Thomaidou
- 1st Department of Neonatology, School of Medicine, Aristotle University of Thessaloniki, Hippokrateion General Hospital, 54642 Thessaloniki, Greece
| | - Olga Deda
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Biomic_AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, 54124 Thessaloniki, Greece
| | - Olga Begou
- Biomic_AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, 54124 Thessaloniki, Greece
- School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Artemis Lioupi
- Biomic_AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, 54124 Thessaloniki, Greece
- School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Angeliki Kontou
- 1st Department of Neonatology, School of Medicine, Aristotle University of Thessaloniki, Hippokrateion General Hospital, 54642 Thessaloniki, Greece
| | - Helen Gika
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Biomic_AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, 54124 Thessaloniki, Greece
| | - Eleni Agakidou
- 1st Department of Neonatology, School of Medicine, Aristotle University of Thessaloniki, Hippokrateion General Hospital, 54642 Thessaloniki, Greece
| | - Georgios Theodoridis
- Biomic_AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, 54124 Thessaloniki, Greece
- School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Kosmas Sarafidis
- 1st Department of Neonatology, School of Medicine, Aristotle University of Thessaloniki, Hippokrateion General Hospital, 54642 Thessaloniki, Greece
- Correspondence: ; Tel.: +30-2310-89-2426
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Panteris E, Deda O, Papazoglou AS, Karagiannidis E, Liapikos T, Begou O, Meikopoulos T, Mouskeftara T, Sofidis G, Sianos G, Theodoridis G, Gika H. Machine Learning Algorithm to Predict Obstructive Coronary Artery Disease: Insights from the CorLipid Trial. Metabolites 2022; 12:metabo12090816. [PMID: 36144220 PMCID: PMC9504538 DOI: 10.3390/metabo12090816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/21/2022] [Accepted: 08/26/2022] [Indexed: 11/16/2022] Open
Abstract
Developing risk assessment tools for CAD prediction remains challenging nowadays. We developed an ML predictive algorithm based on metabolic and clinical data for determining the severity of CAD, as assessed via the SYNTAX score. Analytical methods were developed to determine serum blood levels of specific ceramides, acyl-carnitines, fatty acids, and proteins such as galectin-3, adiponectin, and APOB/APOA1 ratio. Patients were grouped into: obstructive CAD (SS > 0) and non-obstructive CAD (SS = 0). A risk prediction algorithm (boosted ensemble algorithm XGBoost) was developed by combining clinical characteristics with established and novel biomarkers to identify patients at high risk for complex CAD. The study population comprised 958 patients (CorLipid trial (NCT04580173)), with no prior CAD, who underwent coronary angiography. Of them, 533 (55.6%) suffered ACS, 170 (17.7%) presented with NSTEMI, 222 (23.2%) with STEMI, and 141 (14.7%) with unstable angina. Of the total sample, 681 (71%) had obstructive CAD. The algorithm dataset was 73 biochemical parameters and metabolic biomarkers as well as anthropometric and medical history variables. The performance of the XGBoost algorithm had an AUC value of 0.725 (95% CI: 0.691−0.759). Thus, a ML model incorporating clinical features in addition to certain metabolic features can estimate the pre-test likelihood of obstructive CAD.
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Affiliation(s)
- Eleftherios Panteris
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Biomic_Auth, Bioanalysis and Omics Lab, Centre for Interdisciplinary Research of Aristotle University of Thessaloniki, 57001 Thermi, Greece
- Correspondence: (E.P.); (O.D.); (H.G.)
| | - Olga Deda
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Biomic_Auth, Bioanalysis and Omics Lab, Centre for Interdisciplinary Research of Aristotle University of Thessaloniki, 57001 Thermi, Greece
- Correspondence: (E.P.); (O.D.); (H.G.)
| | - Andreas S. Papazoglou
- First Department of Cardiology, AHEPA University Hospital, Aristotle University of Thessaloniki, St. Kiriakidi 1, 54636 Thessaloniki, Greece
| | - Efstratios Karagiannidis
- First Department of Cardiology, AHEPA University Hospital, Aristotle University of Thessaloniki, St. Kiriakidi 1, 54636 Thessaloniki, Greece
| | - Theodoros Liapikos
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Olga Begou
- Biomic_Auth, Bioanalysis and Omics Lab, Centre for Interdisciplinary Research of Aristotle University of Thessaloniki, 57001 Thermi, Greece
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Thomas Meikopoulos
- Biomic_Auth, Bioanalysis and Omics Lab, Centre for Interdisciplinary Research of Aristotle University of Thessaloniki, 57001 Thermi, Greece
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Thomai Mouskeftara
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Biomic_Auth, Bioanalysis and Omics Lab, Centre for Interdisciplinary Research of Aristotle University of Thessaloniki, 57001 Thermi, Greece
| | - Georgios Sofidis
- First Department of Cardiology, AHEPA University Hospital, Aristotle University of Thessaloniki, St. Kiriakidi 1, 54636 Thessaloniki, Greece
| | - Georgios Sianos
- First Department of Cardiology, AHEPA University Hospital, Aristotle University of Thessaloniki, St. Kiriakidi 1, 54636 Thessaloniki, Greece
| | - Georgios Theodoridis
- Biomic_Auth, Bioanalysis and Omics Lab, Centre for Interdisciplinary Research of Aristotle University of Thessaloniki, 57001 Thermi, Greece
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Helen Gika
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Biomic_Auth, Bioanalysis and Omics Lab, Centre for Interdisciplinary Research of Aristotle University of Thessaloniki, 57001 Thermi, Greece
- Correspondence: (E.P.); (O.D.); (H.G.)
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Deda O, Panteris E, Meikopoulos T, Begou O, Mouskeftara T, Karagiannidis E, Papazoglou AS, Sianos G, Theodoridis G, Gika H. Correlation of Serum Acylcarnitines with Clinical Presentation and Severity of Coronary Artery Disease. Biomolecules 2022; 12:biom12030354. [PMID: 35327546 PMCID: PMC8945505 DOI: 10.3390/biom12030354] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 02/18/2022] [Accepted: 02/21/2022] [Indexed: 12/23/2022] Open
Abstract
Recent studies support that acylcarnitines exert a significant role in cardiovascular disease development and progression. The aim of this metabolomics-based study was to investigate the association of serum acylcarnitine levels with coronary artery disease (CAD) severity, as assessed via SYNTAX Score. Within the context of the prospective CorLipid trial (NCT04580173), the levels of 13 circulating acylcarnitines were accurately determined through a newly developed HILIC-MS/MS method in 958 patients undergoing coronary angiography in the AHEPA University Hospital of Thessaloniki, Greece. Patients presenting with acute coronary syndrome had significantly lower median acylcarnitine C8, C10, C16, C18:1 and C18:2 values, compared to patients with chronic coronary syndrome (p = 0.012, 0.007, 0.018, 0.011 and <0.001, respectively). Among CAD subgroups, median C5 levels were significantly decreased in unstable angina compared to STEMI (p = 0.026), while median C10, C16, C18:1 and C18:2 levels were higher in stable angina compared to STEMI (p = 0.019 p = 0.012, p = 0.013 and p < 0.001, respectively). Moreover, median C2, C3, C4 and C8 levels were significantly elevated in patients with diabetes mellitus (p < 0.001, <0.001, 0.029 and 0.011, respectively). Moreover, short-chain acylcarnitine C2, C4, C5 and C6 levels were elevated in patients with heavier calcification and lower left ventricular ejection fraction (LVEF) % (all p-values less than 0.05). With regard to CAD severity, median C4 and C5 levels were elevated and C16 and C18:2 levels were reduced in the high CAD complexity group with SYNTAX Score > 22 (p = 0.002, 0.024, 0.044 and 0.012, respectively), indicating a potential prognostic capability of those metabolites and of the ratio C4/C18:2 for the prediction of CAD severity. In conclusion, serum acylcarnitines could serve as clinically useful biomarkers leading to a more individualized management of patients with CAD, once further clinically oriented metabolomics-based studies provide similar evidence.
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Affiliation(s)
- Olga Deda
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
- Biomic_AUTh, CIRI-AUTH Center for Interdisciplinary Research and Innovation, Aristotle University of Thessaloniki, 57001 Thessaloniki, Greece; (T.M.); (O.B.); (G.T.)
- Correspondence: (O.D.); (E.P.); (H.G.)
| | - Eleftherios Panteris
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
- Biomic_AUTh, CIRI-AUTH Center for Interdisciplinary Research and Innovation, Aristotle University of Thessaloniki, 57001 Thessaloniki, Greece; (T.M.); (O.B.); (G.T.)
- Correspondence: (O.D.); (E.P.); (H.G.)
| | - Thomas Meikopoulos
- Biomic_AUTh, CIRI-AUTH Center for Interdisciplinary Research and Innovation, Aristotle University of Thessaloniki, 57001 Thessaloniki, Greece; (T.M.); (O.B.); (G.T.)
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 57001 Thessaloniki, Greece
| | - Olga Begou
- Biomic_AUTh, CIRI-AUTH Center for Interdisciplinary Research and Innovation, Aristotle University of Thessaloniki, 57001 Thessaloniki, Greece; (T.M.); (O.B.); (G.T.)
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 57001 Thessaloniki, Greece
| | - Thomai Mouskeftara
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
- Biomic_AUTh, CIRI-AUTH Center for Interdisciplinary Research and Innovation, Aristotle University of Thessaloniki, 57001 Thessaloniki, Greece; (T.M.); (O.B.); (G.T.)
| | - Efstratios Karagiannidis
- First Department of Cardiology, AHEPA University Hospital, Aristotle University of Thessaloniki, St. Kiriakidi 1, 54636 Thessaloniki, Greece; (E.K.); (A.S.P.); (G.S.)
| | - Andreas S. Papazoglou
- First Department of Cardiology, AHEPA University Hospital, Aristotle University of Thessaloniki, St. Kiriakidi 1, 54636 Thessaloniki, Greece; (E.K.); (A.S.P.); (G.S.)
| | - Georgios Sianos
- First Department of Cardiology, AHEPA University Hospital, Aristotle University of Thessaloniki, St. Kiriakidi 1, 54636 Thessaloniki, Greece; (E.K.); (A.S.P.); (G.S.)
| | - Georgios Theodoridis
- Biomic_AUTh, CIRI-AUTH Center for Interdisciplinary Research and Innovation, Aristotle University of Thessaloniki, 57001 Thessaloniki, Greece; (T.M.); (O.B.); (G.T.)
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 57001 Thessaloniki, Greece
| | - Helen Gika
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
- Biomic_AUTh, CIRI-AUTH Center for Interdisciplinary Research and Innovation, Aristotle University of Thessaloniki, 57001 Thessaloniki, Greece; (T.M.); (O.B.); (G.T.)
- Correspondence: (O.D.); (E.P.); (H.G.)
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12
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Liapikos T, Zisi C, Kodra D, Kademoglou K, Diamantidou D, Begou O, Pappa-Louisi A, Theodoridis G. Quantitative Structure Retention Relationship (QSRR) Modelling for Analytes’ Retention Prediction in LC-HRMS by Applying Different Machine Learning Algorithms and Evaluating Their Performance. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1191:123132. [DOI: 10.1016/j.jchromb.2022.123132] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 01/12/2022] [Accepted: 01/16/2022] [Indexed: 12/26/2022]
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Kondou A, Dotis J, Karava V, Begou O, Taparkou A, Panteris E, Gkika H, Theodoridis G, Printza N. MO1011IDENTIFICATION OF EARLY BIOMARKERS OF PERITONEAL MEMBRANE DYSFUNCTION IN CHILDREN ON PERITONEAL DIALYSIS USING METABOLOMICS ANALYSIS -PRELIMINARY RESULTS OF AN ONGOING PROSPECTIVE STUDY. Nephrol Dial Transplant 2021. [DOI: 10.1093/ndt/gfab108.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background and Aims
Peritoneal dialysis (PD) are the main renal replacement treatment for children and adolescents with end stage kidney disease (ESRD). Peritoneal fibrosis is a major complication in long-term PD patients. Aim of the present study is to record the metabolic "fingerprint" of children on PD and to investigate its correlation with PD history and dialysis adequacy as well as the emergence of potential biomarkers that could detect early or predict peritoneal dysfunction.
Method
Samples of serum, urine and peritoneal effluent collected from 15 children with ESRD on PD. At the same time and 6 months later was performed PET-test as well as assessment of KT/V and creatinine clearance. Samples were subjected to targeted metabolomic analysis of amino acids and derivatives. Regarding metabolic technologies used, all samples (peritoneal fluid, urine, blood) were analyzed by a hydrophilic interaction liquid chromatography coupled to mass spectrometry (HILIC-MS / MS) method previously developed and validated in our laboratory for the simultaneous determination of amino acids and their derivatives in biological fluids. Αalso, high flow analysis was carried out (LC-q-tof analysis – HPLC /MS ).
Results
Using (HILIC-MS / MS) method, we found out that peritoneal dialysis duration, presence or absence of diuresis and PD creatinine clearance values are associated with significant differences in the levels of several metabolites, including glycine, creatinine, proline and 4-hydroxyproline, leucine, valine, glutamine and glutamic acid. Using (LC-q-tof analysis – HPLC /MS) approximately 200 metabolites were analyzed in the aforementioned samples. Figure 1 illustrates the number of metabolites detected in each matrix, as well as the common metabolites between the three matrices. These metabolites were associated with peritoneal dialysis duration, creatine clearance and presence or absence of diuresis. Several metabolites showed statistical difference between the examined groups. In detail, regarding serum analysis, five metabolites, including hydroxy phenyl acetic acid, glutathione ox, glucosamine-6-P, indole acetic acid and riboflavin showed statistical difference between the examined groups based on PD vintage. Based on urine excretion four metabolites named histidine, shikimic acid, thiamine and methionine were statistically different. Concerning urine analysis, two metabolites namely uridine and itaconic acid showed statistical difference when patients sub grouped based on PD vintage. Peritoneal fluid analysis highlighted one metabolite, uridine, that levels are significantly lower in patients on PD therapy for more than 4 years while based on creatinine clearance levels subgroups, two metabolites, lactate and pantothenic acid present statistically significant difference.
Conclusion
Metabolomics may be a tool in the evaluation of patients with ESRD on PD as it appears to reflect the clinical phenotype of the patient and the functional phenotype of the peritoneal membrane. Our results are the preliminary results of an ongoing prospective study. Limitation of the study is the small sample of patients, which does not allow safe clinical interpretation.
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Affiliation(s)
- Antonia Kondou
- Aristotle University of Thessaloniki, 1st Department of Pediatrics, Pediatrics Nephrology Unit, General Hospital of Thessaloniki, Hippokration, Thessaloniki, Greece
| | - John Dotis
- Aristotle University of Thessaloniki, 1st Department of Pediatrics, Pediatrics Nephrology Unit, General Hospital of Thessaloniki, Hippokration, Thessaloniki, Greece
| | - Vasiliki Karava
- Aristotle University of Thessaloniki, 1st Department of Pediatrics, Pediatrics Nephrology Unit, General Hospital of Thessaloniki, Hippokration, Thessaloniki, Greece
| | - Olga Begou
- Aristotle University of Thessaloniki, Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Anna Taparkou
- Aristotle University of Thessaloniki, 1st Department of Pediatrics, Pediatrics Nephrology Unit, General Hospital of Thessaloniki, Hippokration, Thessaloniki, Greece
| | - Eleftherios Panteris
- Aristotle University of Thessaloniki, Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Helen Gkika
- Aristotle University of Thessaloniki, Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Georgios Theodoridis
- Aristotle University of Thessaloniki, Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Nikoleta Printza
- Aristotle University of Thessaloniki, 1st Department of Pediatrics, Pediatrics Nephrology Unit, General Hospital of Thessaloniki, Hippokration, Thessaloniki, Greece
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Begou O, Pavlaki A, Deda O, Bollenbach A, Drabert K, Gika H, Farmaki E, Dotis J, Printza N, Theodoridis G, Tsikas D. Diminished Systemic Amino Acids Metabolome and Lipid Peroxidation in Ureteropelvic Junction Obstruction (UPJO) Infants Requiring Surgery. J Clin Med 2021; 10:jcm10071467. [PMID: 33918213 PMCID: PMC8038180 DOI: 10.3390/jcm10071467] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 03/22/2021] [Accepted: 03/23/2021] [Indexed: 12/19/2022] Open
Abstract
Congenital anomalies of the urinary tract, and particularly of obstructive nephropathy such as ureteropelvic junction obstruction (UPJO) in infants, can later lead to chronic kidney disease and hypertension. Fundamental questions regarding underlying mechanisms remain unanswered. The aim of the present study was to quantitate the systemic amino acids metabolome in 21 UPJO infants requiring surgery (Group A) and 21 UPJO infants under conservative treatment (Group B). Nineteen healthy age-matched infants served as controls (Group C). Serum amino acids involved in several pathways and representative metabolites, including the L-arginine-derived nitric oxide (NO) metabolites nitrite and nitrate and the lipid peroxidation biomarker malondialdehyde (MDA) were measured by gas chromatography–mass spectrometry (GC–MS) methods using their stable-isotope labeled analogs as internal standards after derivatization to their methyl esters N-pentafluoropropionic amides (amino acids) and to their pentafluorobenzyl derivatives (nitrite, nitrate, MDA). The concentrations of the majority of the biomarkers were found to be lower in Group A compared to Group B. Statistical analysis revealed clear differentiation between the examined study groups. Univariate statistical analysis highlighted serum homoarginine (q = 0.006), asymmetric dimethylarginine (q = 0.05) and malondialdehyde (q = 0.022) as potential biomarkers for UPJO infants requiring surgery. Group A also differed from Group B with respect to the diameter of the preoperative anterior–posterior renal pelvis (AP) as well as regarding the number and extent of inverse correlations between AP and the serum concentrations of the biomarkers. In Group A, but not in Group B, the AP diameter strongly correlated with hydroxy-proline (r = −0.746, p = 0.0002) and MDA (r = −0.754, p = 0.002). Our results indicate a diminished amino acids metabolome in the serum of UPJO infants requiring surgery comparing to a conservative group.
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Affiliation(s)
- Olga Begou
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece;
- Biomic_AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, B1.4, 10th km Thessaloniki-Thermi Rd, P.O. Box 8318, 57001 Thessaloniki, Greece; (O.D.); (H.G.)
- Core Unit Proteomics, Hannover Medical School, Institute of Toxicology, Carl-Neuberg-Strasse 1, 30625 Hannover, Germany; (A.B.); (K.D.); (D.T.)
- Correspondence: ; Tel.: +30-2310-990596
| | - Antigoni Pavlaki
- Paediatric Nephrology Unit, First Department of Paediatrics, Hippokratio Hospital, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece; (A.P.); (J.D.); (N.P.)
| | - Olga Deda
- Biomic_AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, B1.4, 10th km Thessaloniki-Thermi Rd, P.O. Box 8318, 57001 Thessaloniki, Greece; (O.D.); (H.G.)
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece
| | - Alexander Bollenbach
- Core Unit Proteomics, Hannover Medical School, Institute of Toxicology, Carl-Neuberg-Strasse 1, 30625 Hannover, Germany; (A.B.); (K.D.); (D.T.)
| | - Kathrin Drabert
- Core Unit Proteomics, Hannover Medical School, Institute of Toxicology, Carl-Neuberg-Strasse 1, 30625 Hannover, Germany; (A.B.); (K.D.); (D.T.)
| | - Helen Gika
- Biomic_AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, B1.4, 10th km Thessaloniki-Thermi Rd, P.O. Box 8318, 57001 Thessaloniki, Greece; (O.D.); (H.G.)
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece
| | - Evangelia Farmaki
- Paediatric Immunology and Rheumatology Referral Center, First Department of Paediatrics, Hippokratio Hospital, University Campus, 54124 Thessaloniki, Greece;
| | - John Dotis
- Paediatric Nephrology Unit, First Department of Paediatrics, Hippokratio Hospital, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece; (A.P.); (J.D.); (N.P.)
| | - Nikoleta Printza
- Paediatric Nephrology Unit, First Department of Paediatrics, Hippokratio Hospital, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece; (A.P.); (J.D.); (N.P.)
| | - Georgios Theodoridis
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece;
- Biomic_AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, B1.4, 10th km Thessaloniki-Thermi Rd, P.O. Box 8318, 57001 Thessaloniki, Greece; (O.D.); (H.G.)
| | - Dimitrios Tsikas
- Core Unit Proteomics, Hannover Medical School, Institute of Toxicology, Carl-Neuberg-Strasse 1, 30625 Hannover, Germany; (A.B.); (K.D.); (D.T.)
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Karagiannidis E, Papazoglou AS, Stalikas N, Deda O, Panteris E, Begou O, Sofidis G, Moysidis DV, Kartas A, Chatzinikolaou E, Keklikoglou K, Bompoti A, Gika H, Theodoridis G, Sianos G. Serum Ceramides as Prognostic Biomarkers of Large Thrombus Burden in Patients with STEMI: A Micro-Computed Tomography Study. J Pers Med 2021; 11:jpm11020089. [PMID: 33572568 PMCID: PMC7911549 DOI: 10.3390/jpm11020089] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 01/21/2021] [Accepted: 01/28/2021] [Indexed: 12/17/2022] Open
Abstract
ST-elevation myocardial infarction (STEMI) remains one of the leading causes of mortality worldwide. The identification of novel metabolic and imaging biomarkers could unveil key pathophysiological mechanisms at the molecular level and promote personalized care in patients with acute coronary syndromes. We studied 38 patients with STEMI who underwent primary percutaneous coronary intervention and thrombus aspiration. We sought to correlate serum ceramide levels with micro-CT quantified aspirated thrombus volume and relevant angiographic outcomes, including modified TIMI thrombus grade and pre- or post-procedural TIMI flow. Higher ceramide C16:0 levels were significantly but weakly correlated with larger aspirated thrombus volume (Spearman r = 0.326, p = 0.046), larger intracoronary thrombus burden (TB; p = 0.030) and worse pre- and post-procedural TIMI flow (p = 0.049 and p = 0.039, respectively). Ceramides C24:0 and C24:1 were also significantly associated with larger intracoronary TB (p = 0.008 and p = 0.001, respectively). Receiver operating characteristic analysis demonstrated that ceramides C24:0 and C24:1 could significantly predict higher intracoronary TB (area under the curve: 0.788, 95% CI: 0.629-0.946 and 0.846, 95% CI: 0.706-0.985, respectively). In conclusion, serum ceramide levels were higher among patients with larger intracoronary and aspirated TB. This suggests that quantification of serum ceramides might improve risk-stratification of patients with STEMI and facilitate an individualized approach in clinical practice.
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Affiliation(s)
- Efstratios Karagiannidis
- First Department of Cardiology, AHEPA University Hospital, Aristotle University of Thessaloniki, St. Kiriakidi 1, 54636 Thessaloniki, Greece; (E.K.); (A.S.P.); (N.S.); (G.S.); (D.V.M.); (A.K.)
| | - Andreas S. Papazoglou
- First Department of Cardiology, AHEPA University Hospital, Aristotle University of Thessaloniki, St. Kiriakidi 1, 54636 Thessaloniki, Greece; (E.K.); (A.S.P.); (N.S.); (G.S.); (D.V.M.); (A.K.)
| | - Nikolaos Stalikas
- First Department of Cardiology, AHEPA University Hospital, Aristotle University of Thessaloniki, St. Kiriakidi 1, 54636 Thessaloniki, Greece; (E.K.); (A.S.P.); (N.S.); (G.S.); (D.V.M.); (A.K.)
| | - Olga Deda
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (O.D.); (E.P.); (H.G.)
- Biomic_AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, B1.4, 10th km Thessaloniki-Thermi Rd, P.O. Box 8318, 57001 Thessaloniki, Greece; (O.B.); (G.T.)
| | - Eleftherios Panteris
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (O.D.); (E.P.); (H.G.)
- Biomic_AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, B1.4, 10th km Thessaloniki-Thermi Rd, P.O. Box 8318, 57001 Thessaloniki, Greece; (O.B.); (G.T.)
| | - Olga Begou
- Biomic_AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, B1.4, 10th km Thessaloniki-Thermi Rd, P.O. Box 8318, 57001 Thessaloniki, Greece; (O.B.); (G.T.)
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece
| | - Georgios Sofidis
- First Department of Cardiology, AHEPA University Hospital, Aristotle University of Thessaloniki, St. Kiriakidi 1, 54636 Thessaloniki, Greece; (E.K.); (A.S.P.); (N.S.); (G.S.); (D.V.M.); (A.K.)
| | - Dimitrios V. Moysidis
- First Department of Cardiology, AHEPA University Hospital, Aristotle University of Thessaloniki, St. Kiriakidi 1, 54636 Thessaloniki, Greece; (E.K.); (A.S.P.); (N.S.); (G.S.); (D.V.M.); (A.K.)
| | - Anastasios Kartas
- First Department of Cardiology, AHEPA University Hospital, Aristotle University of Thessaloniki, St. Kiriakidi 1, 54636 Thessaloniki, Greece; (E.K.); (A.S.P.); (N.S.); (G.S.); (D.V.M.); (A.K.)
| | - Evangelia Chatzinikolaou
- Institute of Marine Biology, Biotechnology and Aquaculture (IMBBC), Hellenic Centre for Marine Research (HCMR), 71500 Heraklion, Crete, Greece; (E.C.); (K.K.)
| | - Kleoniki Keklikoglou
- Institute of Marine Biology, Biotechnology and Aquaculture (IMBBC), Hellenic Centre for Marine Research (HCMR), 71500 Heraklion, Crete, Greece; (E.C.); (K.K.)
- Biology Department, University of Crete, 71003 Heraklion, Crete, Greece
| | | | - Helen Gika
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (O.D.); (E.P.); (H.G.)
- Biomic_AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, B1.4, 10th km Thessaloniki-Thermi Rd, P.O. Box 8318, 57001 Thessaloniki, Greece; (O.B.); (G.T.)
| | - Georgios Theodoridis
- Biomic_AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, B1.4, 10th km Thessaloniki-Thermi Rd, P.O. Box 8318, 57001 Thessaloniki, Greece; (O.B.); (G.T.)
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece
| | - Georgios Sianos
- First Department of Cardiology, AHEPA University Hospital, Aristotle University of Thessaloniki, St. Kiriakidi 1, 54636 Thessaloniki, Greece; (E.K.); (A.S.P.); (N.S.); (G.S.); (D.V.M.); (A.K.)
- Correspondence: ; Tel.: +30-2310994837
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Diamantidou D, Begou O, Theodoridis G, Gika H, Tsochatzis E, Kalogiannis S, Kataiftsi N, Soufleros E, Zotou A. Corrigendum to: ``Development and validation of an ultra high performance liquid chromatography-tandem mass spectrometry method for the determination of phthalate esters in Greek grape marc spirits'' Journal of Chromatography A, Vol 1603, 2019, Pages 165-178. J Chromatogr A 2020; 1623:461203. [PMID: 32505291 DOI: 10.1016/j.chroma.2020.461203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Dimitra Diamantidou
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece; BIOMIC Auth, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Buldings A&B, Thessaloniki, 10thkm Thessaloniki-Thermi Rd, P.O. Box 8318, GR, 57001, Greece; FoodOmicsGR, Center for Interdisciplinary Research & Innovation, Aristotle University of Thessaloniki, 57001, Thessaloniki, Greece
| | - Olga Begou
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece; BIOMIC Auth, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Buldings A&B, Thessaloniki, 10thkm Thessaloniki-Thermi Rd, P.O. Box 8318, GR, 57001, Greece; FoodOmicsGR, Center for Interdisciplinary Research & Innovation, Aristotle University of Thessaloniki, 57001, Thessaloniki, Greece
| | - Georgios Theodoridis
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece; BIOMIC Auth, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Buldings A&B, Thessaloniki, 10thkm Thessaloniki-Thermi Rd, P.O. Box 8318, GR, 57001, Greece; FoodOmicsGR, Center for Interdisciplinary Research & Innovation, Aristotle University of Thessaloniki, 57001, Thessaloniki, Greece
| | - Helen Gika
- BIOMIC Auth, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Buldings A&B, Thessaloniki, 10thkm Thessaloniki-Thermi Rd, P.O. Box 8318, GR, 57001, Greece; FoodOmicsGR, Center for Interdisciplinary Research & Innovation, Aristotle University of Thessaloniki, 57001, Thessaloniki, Greece; Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Emmanouil Tsochatzis
- Department of Chemical Engineering, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Stavros Kalogiannis
- FoodOmicsGR, Center for Interdisciplinary Research & Innovation, Aristotle University of Thessaloniki, 57001, Thessaloniki, Greece; Department of Nutrition and Dietetics, Alexander Technological Educational Institute of Thessaloniki, 57400, Thessaloniki, Greece
| | - Natalia Kataiftsi
- Laboratory of Oenology and Alcoholic Beverages, Department of Food Science and Technology, School of Agriculture, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Evangelos Soufleros
- Laboratory of Oenology and Alcoholic Beverages, Department of Food Science and Technology, School of Agriculture, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Anastasia Zotou
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece; FoodOmicsGR, Center for Interdisciplinary Research & Innovation, Aristotle University of Thessaloniki, 57001, Thessaloniki, Greece.
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17
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Pavlaki A, Begou O, Deda O, Farmaki E, Dotis J, Gika H, Taparkou A, Raikos N, Papachristou F, Theodoridis G, Printza N. Serum-Targeted HILIC-MS Metabolomics-Based Analysis in Infants with Ureteropelvic Junction Obstruction. J Proteome Res 2020; 19:2294-2303. [PMID: 32351114 DOI: 10.1021/acs.jproteome.9b00855] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Ureteropelvic junction obstruction (UPJO) constitutes the predominant cause of obstructive nephropathy in both neonates and infants. Fundamental questions regarding UPJO's mechanism, assessment, and treatment still remain unanswered. The aim of the present study was to elucidate potential differences through serum metabolic profiling of surgical cases of infants with UPJO compared to both nonsurgical cases and healthy age-matched controls. Early diagnosis of renal dysfunction in this cohort based on highlighted biomarkers was the ultimate goal. Thus, serum samples were collected from 20 patients preoperatively, 19 patients with mild stenosis treated conservatively, and 17 healthy controls. All samples were subjected to targeted metabolomics analysis by hydrophilic interaction liquid chromatography coupled to mass spectrometry (HILIC LC-MS/MS). Both univariate and multivariate statistical analyses were performed. Principal component analysis (PCA) and orthogonal partial least squares-discriminant analysis (OPLS-DA) score plots showed that the studied groups differed significantly, with a panel of metabolites, including creatinine, tryptophan, choline, and aspartate, distinguishing patients who required surgery from those followed by systematical monitoring as well as from healthy controls, showing high performance as indicators of UPJO disease.
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Affiliation(s)
- Antigoni Pavlaki
- Paediatric Nephrology Unit, First Department of Paediatrics, Hippokratio Hospital, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Olga Begou
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.,Biomic_Auth, Bioanalysis and Omics Lab, Centre for Interdisciplinary Research of Aristotle University of Thessaloniki, Innovation Area of Thessaloniki, Thermi 57001, Greece
| | - Olga Deda
- Biomic_Auth, Bioanalysis and Omics Lab, Centre for Interdisciplinary Research of Aristotle University of Thessaloniki, Innovation Area of Thessaloniki, Thermi 57001, Greece.,Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Evangelia Farmaki
- Paediatric Immunology and Rheumatology Referral Center, First Department of Paediatrics, Hippokratio Hospital, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - John Dotis
- Paediatric Nephrology Unit, First Department of Paediatrics, Hippokratio Hospital, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Helen Gika
- Biomic_Auth, Bioanalysis and Omics Lab, Centre for Interdisciplinary Research of Aristotle University of Thessaloniki, Innovation Area of Thessaloniki, Thermi 57001, Greece.,Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Anna Taparkou
- Paediatric Immunology and Rheumatology Referral Center, First Department of Paediatrics, Hippokratio Hospital, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Nikolaos Raikos
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Fotios Papachristou
- Paediatric Nephrology Unit, First Department of Paediatrics, Hippokratio Hospital, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Georgios Theodoridis
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.,Biomic_Auth, Bioanalysis and Omics Lab, Centre for Interdisciplinary Research of Aristotle University of Thessaloniki, Innovation Area of Thessaloniki, Thermi 57001, Greece
| | - Nikoleta Printza
- Paediatric Nephrology Unit, First Department of Paediatrics, Hippokratio Hospital, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
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18
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Begou O, Drabert K, Theodoridis G, Tsikas D. GC-NICI-MS analysis of acetazolamide and other sulfonamide (R-SO 2-NH 2) drugs as pentafluorobenzyl derivatives [R-SO 2-N(PFB) 2] and quantification of pharmacological acetazolamide in human urine. J Pharm Anal 2019; 10:49-59. [PMID: 32123599 PMCID: PMC7037487 DOI: 10.1016/j.jpha.2019.11.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 11/19/2019] [Accepted: 11/22/2019] [Indexed: 01/06/2023] Open
Abstract
Acetazolamide (molecular mass (MM), 222) belongs to the class of sulfonamides (R-SO2-NH2) and is one of the strongest pharmacological inhibitors of carbonic anhydrase activity. Acetazolamide is excreted unchanged in the urine. Here, we report on the development, validation and biomedical application of a stable-isotope dilution GC-MS method for the reliable quantitative determination of acetazolamide in human urine. The method is based on evaporation to dryness of 50 μL urine aliquots, base-catalyzed derivatization of acetazolamide (d0-AZM) and its internal standard [acetylo-2H3]acetazolamide (d3-AZM) in 30 vol% pentafluorobenzyl (PFB) bromide in acetonitrile (60 min, 30 °C), reconstitution in toluene (200 μL) and injection of 1-μL aliquots. The negative-ion chemical ionization (NICI) mass spectra (methane) of the PFB derivatives contained several intense ions including [M]‒ at m/z 581 for d0-AZM and m/z 584 for d3-AZM, suggesting derivatization of their sulfonamide groups to form N,N-dipentafluorobenzyl derivatives (R-SO2-N(PFB)2), i.e., d0-AZM-(PFB)2 and d3-AZM-(PFB)2, respectively. Quantification was performed by selected-ion monitoring of m/z 581 and 83 for d0-AZM-(PFB)2 and m/z 584 and 86 for d3-AZM-(PFB)2. The limits of detection and quantitation of the method were determined to be 300 fmol (67 pg) and 1 μM of acetazolamide, respectively. Intra- and inter-assay precision and accuracy for acetazolamide in human urine samples in pharmacologically relevant concentration ranges were determined to be 0.3%–4.2% and 95.3%–109%, respectively. The method was applied to measure urinary acetazolamide excretion after ingestion of a 250 mg acetazolamide-containing tablet (Acemit®) by a healthy volunteer. Among other tested sulfonamide drugs, methazolamide (MM, 236) was also found to form a N,N-dipentafluorobenzyl derivative, whereas dorzolamide (MM, 324) was hardly detectable. No GC-MS peaks were obtained from the PFB bromide derivatization of hydrochlorothiazide (MM, 298), xipamide (MM, 355), indapamide and metholazone (MM, 366 each) or brinzolamide (MM, 384). We demonstrate for the first time that sulfonamide drugs can be derivatized with PFB bromide and quantitated by GC-MS. Sulfonamides with MM larger than 236 are likely to be derivatized by PFB bromide but to lack thermal stability. The sulfonamide group of acetazolamide was derivatized for the first time with pentafluorobenzyl bromide. Other sulfonamides were also derivatized for the first time with pentafluorobenzyl bromide. Pentafluorobenzyl derivatives of acetazolamide and other sulfonamides are useful for GC-MS. The validated method was used to quantify pharmacological acetazolamide in human urine.
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Affiliation(s)
- Olga Begou
- Institute of Toxicology, Core Unit Proteomics, Hannover Medical School, Carl-Neuberg-Strasse 1, D-30625, Hannover, Germany
- Department of Chemistry, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
- BIOMIC_AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, 10th Km Thessaloniki-Thermi Rd, P.O. Box 8318, GR 57001, Thessaloniki, Greece
| | - Kathrin Drabert
- Institute of Toxicology, Core Unit Proteomics, Hannover Medical School, Carl-Neuberg-Strasse 1, D-30625, Hannover, Germany
| | - Georgios Theodoridis
- Department of Chemistry, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
- BIOMIC_AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, 10th Km Thessaloniki-Thermi Rd, P.O. Box 8318, GR 57001, Thessaloniki, Greece
| | - Dimitrios Tsikas
- Institute of Toxicology, Core Unit Proteomics, Hannover Medical School, Carl-Neuberg-Strasse 1, D-30625, Hannover, Germany
- Corresponding author.
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19
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Diamantidou D, Begou O, Theodoridis G, Gika H, Tsochatzis E, Kalogiannis S, Kataiftsi N, Soufleros E, Zotou A. Development and validation of an ultra high performance liquid chromatography-tandem mass spectrometry method for the determination of phthalate esters in Greek grape marc spirits. J Chromatogr A 2019; 1603:165-178. [PMID: 31239151 DOI: 10.1016/j.chroma.2019.06.034] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 05/29/2019] [Accepted: 06/12/2019] [Indexed: 11/17/2022]
Abstract
An Ultra High Performance Liquid Chromatography - Tandem Mass Spectrometry method has been developed for the analysis of 12 phthalate esters in Greek grape marc spirits. The phthalates were separated on a U-VDSpher PUR 100 C18-E (100 mm x 2.0 mm, 1.8 μm) column by gradient elution. The analytes were ionized by positive electrospray ionization using the multiple reaction monitoring mode. The standard addition method was used for quantification and the Student's t-test was carried out to evaluate the matrix effect. The accuracy of the method was assessed by recovery experiments resulting in values from 81.6 to 109.6%. The detection limits ranged from 0.3 to 33.3 μg L-1.The proposed method was validated and successfully applied to the analysis of 45 samples collected from Greece and Cyprus. All phthalate esters proved to be present at least once in the analysed grape marc spirits samples, except only in cases of diphenyl phthalate and diisodecyl phthalate, while for the regulated phthalates only bis (2-ethylhexyl) phthalate was quantified above the legislative concentration limits.
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Affiliation(s)
- Dimitra Diamantidou
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece; BIOMIC Auth, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Buldings A&B, Thessaloniki, 10thkm Thessaloniki-Thermi Rd, P.O. Box 8318, GR, 57001, Greece; FoodOmicsGR, Center for Interdisciplinary Research & Innovation, Aristotle University of Thessaloniki, 57001, Thessaloniki, Greece
| | - Olga Begou
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece; BIOMIC Auth, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Buldings A&B, Thessaloniki, 10thkm Thessaloniki-Thermi Rd, P.O. Box 8318, GR, 57001, Greece; FoodOmicsGR, Center for Interdisciplinary Research & Innovation, Aristotle University of Thessaloniki, 57001, Thessaloniki, Greece
| | - Georgios Theodoridis
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece; BIOMIC Auth, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Buldings A&B, Thessaloniki, 10thkm Thessaloniki-Thermi Rd, P.O. Box 8318, GR, 57001, Greece; FoodOmicsGR, Center for Interdisciplinary Research & Innovation, Aristotle University of Thessaloniki, 57001, Thessaloniki, Greece
| | - Helen Gika
- BIOMIC Auth, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Buldings A&B, Thessaloniki, 10thkm Thessaloniki-Thermi Rd, P.O. Box 8318, GR, 57001, Greece; FoodOmicsGR, Center for Interdisciplinary Research & Innovation, Aristotle University of Thessaloniki, 57001, Thessaloniki, Greece; Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Emmanouil Tsochatzis
- Department of Chemical Engineering, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Stavros Kalogiannis
- FoodOmicsGR, Center for Interdisciplinary Research & Innovation, Aristotle University of Thessaloniki, 57001, Thessaloniki, Greece; Department of Nutrition and Dietetics, Alexander Technological Educational Institute of Thessaloniki, 57400, Thessaloniki, Greece
| | - Natalia Kataiftsi
- Laboratory of Oenology and Alcoholic Beverages, Department of Food Science and Technology, School of Agriculture, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Evangelos Soufleros
- Laboratory of Oenology and Alcoholic Beverages, Department of Food Science and Technology, School of Agriculture, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Anastasia Zotou
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece; FoodOmicsGR, Center for Interdisciplinary Research & Innovation, Aristotle University of Thessaloniki, 57001, Thessaloniki, Greece.
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Sarafidis K, Begou O, Deda O, Gika H, Agakidis C, Efstathiou N, Theodoridis G. Targeted urine metabolomics in preterm neonates with intraventricular hemorrhage. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1104:240-248. [PMID: 30530117 DOI: 10.1016/j.jchromb.2018.11.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 11/11/2018] [Accepted: 11/20/2018] [Indexed: 01/21/2023]
Abstract
Intraventricular hemorrhage (IVH) is a major cause of morbidity and mortality in preterm neonates. Elucidation of the mechanisms underlying IVH and/or development of disease biomarkers is essential. The aim of the study was to investigate the urine metabolic profile of preterm neonates (gestational age < 32 weeks) IVH and explore the role of metabolomics in understanding pathophysiological mechanisms of the disease from which novel biomarkers could be derived. In this single-center, prospective, case-control study, urine samples were collected from seven preterm infants with early IVH (IVH group) and from 11 preterm ones without IVH (control group) on days 1, 3 and 9 of life. Urine metabolites were evaluated using targeted liquid chromatography-tandem mass spectrometry. Demographic and perinatal-clinical characteristics were recorded. Univariate and multivariate statistical analyses were performed. Orthogonal Partial Least Squares-Discriminant Analysis showed that the study groups differed significantly due to alternation in 20 out of the 40 metabolites detected in the urine. Elevated differentiated metabolites included energy intermediates and other important compounds, whereas reduced ones various amino acids, hypoxanthine and nicotinamide. A set of metabolites showed high performance as indicators of IVH, especially during day 1. As evidenced by metabolomics, preterm neonates with IVH demonstrate significant metabolism perturbations. Potentially, a selected panel of metabolites could be used as urine biomarkers of IVH development and/or progression in high-risk preterm infants.
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Affiliation(s)
- K Sarafidis
- 1(st) Department of Neonatology, School of Medicine, Aristotle University of Thessaloniki, Hippokrateion General Hospital, Kostantinoupoleos 49, 54642 Thessaloniki, Greece.
| | - O Begou
- Laboratory of Analytical Chemistry, School of Chemistry, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece
| | - O Deda
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece
| | - H Gika
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece
| | - C Agakidis
- 1(st) Department of Neonatology, School of Medicine, Aristotle University of Thessaloniki, Hippokrateion General Hospital, Kostantinoupoleos 49, 54642 Thessaloniki, Greece
| | - N Efstathiou
- 1(st) Department of Neonatology, School of Medicine, Aristotle University of Thessaloniki, Hippokrateion General Hospital, Kostantinoupoleos 49, 54642 Thessaloniki, Greece
| | - G Theodoridis
- Laboratory of Analytical Chemistry, School of Chemistry, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece
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Abstract
Global metabolic profiling (untargeted metabolomics) of different and complex biological matrices aims to implement an holistic, hypothesis-free analysis of (potentially) all the metabolites present in the analyzed sample. However, such an approach, although it has been the focus of great interest over the past few years, still faces many limitations and challenges, particularly with regard to the validation and the quality of the obtained results. The present protocol describes a quality control (QC) procedure for monitoring the precision of the analytical process involving untargeted metabolic phenotyping of urine and plasma/serum. The described/suggested methodology can be applied to different biological matrices, such as biological biofluids, cell, and tissue extracts.
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Affiliation(s)
- Olga Begou
- Department of Chemistry, Aristotle University, Thessaloniki, Greece
| | - Helen G Gika
- School of Medicine, Aristotle University, Thessaloniki, Greece.
| | | | - Ian D Wilson
- Department of Surgery and Cancer, Imperial College London, London, UK
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22
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Pina A, Begou O, Kanelis D, Gika H, Kalogiannis S, Tananaki C, Theodoridis G, Zotou A. Targeted profiling of hydrophilic constituents of royal jelly by hydrophilic interaction liquid chromatography-tandem mass spectrometry. J Chromatogr A 2017; 1531:53-63. [PMID: 29198446 DOI: 10.1016/j.chroma.2017.11.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 11/08/2017] [Accepted: 11/12/2017] [Indexed: 01/18/2023]
Abstract
In the present work a Hydrophilic Interaction Liquid Chromatography-tandem Mass Spectrometry (HILIC-MS/MS) method was developed for the efficient separation and quantification of a large number of small polar bioactive molecules in Royal Jelly. The method was validated and provided satisfactory detection sensitivity for 88 components. Quantification was proven to be precise for 64 components exhibiting good linearity, recoveries R% >90% for the majority of analytes and intra- and inter-day precision from 0.14 to 20% RSD. Analysis of 125 fresh royal jelly samples of Greek origin provided useful information on royal jelly's hydrophilic bioactive components revealing lysine, ribose, proline, melezitose and glutamic acid to be in high abundance. In addition the occurrence of 18 hydrophilic nutrients which have not been reported previously as royal jelly constituents is shown.
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Affiliation(s)
- Athanasia Pina
- Laboratory of Analytical Chemistry, School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Olga Begou
- Laboratory of Analytical Chemistry, School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Dimitris Kanelis
- Laboratory of Apiculture-Sericulture, School of Agriculture, Aristotle University of Thessaloniki, 54006 Thessaloniki, Greece
| | - Helen Gika
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
| | - Stavros Kalogiannis
- Department of Nutrition and Dietetics, Alexander Technological Educational Institute (ATEITH) of Thessaloniki, 57400 Thessaloniki, Greece
| | - Chrysoula Tananaki
- Laboratory of Apiculture-Sericulture, School of Agriculture, Aristotle University of Thessaloniki, 54006 Thessaloniki, Greece
| | - Georgios Theodoridis
- Laboratory of Analytical Chemistry, School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Anastasia Zotou
- Laboratory of Analytical Chemistry, School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
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23
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Sarafidis K, Efstathiou N, Begou O, Soubasi V, Agakidou E, Gika E, Theodoridis G, Drossou V. Urine metabolomic profile in neonates with hypoxic-ischemic encephalopa-thy. Hippokratia 2017; 21:80-84. [PMID: 30455560 PMCID: PMC6239088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
BACKGROUND Metabolomics could provide valuable insights into hypoxemic-ischemic encephalopathy (HIE) revealing new disease-associated biochemical derangements. The study aimed to investigate urine metabolic changes in neonates with HIE compared to healthy controls, using targeted liquid chromatography-tandem mass spectrometry (LC-MS/MS). PATIENTS AND METHODS In this prospective, single-center study we enrolled neonates born at ≥ 36 weeks gestation with HIE (HIE group) and healthy controls (control group). We collected urine samples for metabolomic analysis on days one, three, and nine of life. RESULTS Twenty-one full-term newborns were studied, 13 in the HIE group and eight in the control group. Six of the affected neonates had moderate/severe HIE and seven mild HIE. Therapeutic hypothermia was applied only in four neonates with moderate/severe HIE. Multivariate and univariate statistical analysis showed a clear separation between the HIE and the control groups. Discriminant metabolites involved pyruvic acid, amino acids, acylcarnitines, inositol, kynurenine, hippuric acid, and vitamins. CONCLUSIONS We have identified a specific metabolic profile in neonates with HIE, adding to the existing knowledge on the disease biochemistry that may potentially help in biomarker development. HIPPOKRATIA 2017, 21(2): 80-84.
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Affiliation(s)
- K Sarafidis
- 1 Department of Neonatology, School of Medicine Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - N Efstathiou
- 1 Department of Neonatology, School of Medicine Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - O Begou
- School of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - V Soubasi
- 1 Department of Neonatology, School of Medicine Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - E Agakidou
- 1 Department of Neonatology, School of Medicine Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - E Gika
- Laboratory of Forensic Toxicology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - G Theodoridis
- School of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - V Drossou
- 1 Department of Neonatology, School of Medicine Aristotle University of Thessaloniki, Thessaloniki, Greece
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24
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Abstract
Review of targeted metabolomics, with a focus on the description of analytical methods.
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Affiliation(s)
- O. Begou
- Department of Chemistry
- Aristotle University
- 54124 Thessaloniki
- Greece
| | - H. G. Gika
- Department of Medicine
- Aristotle University
- 54124 Thessaloniki
- Greece
| | - I. D. Wilson
- Division of Computational and Systems Medicine
- Department of Surgery and Cancer
- Imperial College
- London
- UK
| | - G. Theodoridis
- Department of Chemistry
- Aristotle University
- 54124 Thessaloniki
- Greece
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25
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Tsochatzis ED, Begou O, Gika HG, Karayannakidis PD, Kalogiannis S. A hydrophilic interaction chromatography-tandem mass spectrometry method for amino acid profiling in mussels. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1047:197-206. [PMID: 27265158 DOI: 10.1016/j.jchromb.2016.05.018] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 04/28/2016] [Accepted: 05/12/2016] [Indexed: 10/21/2022]
Abstract
A UHPLC-HILIC-tandem MS method has been developed and validated for the quantification of 21 amino acids (20 protein amino acids and cystine) in their free form (FAA) and as protein constituents (total amino acids, TAA) in a rich protein food matrix such as lyophilized mussels (Mytilus galloprovincialis) samples. FAA were analyzed after suspending the samples in the presence of trichloroacetic acid in order to prevent dissolving the proteins, while TAA were determined after acid hydrolysis with 6M HCl in the presence of 4% v/v thioglycolic acid as a reducing agent. In hydrolysed samples 17 amino acids could be determined since tryptophan, cysteine, cystine and asparagine were degraded during acid hydrolysis. Linear regression coefficients (R2) were above 0.99 for all amino acids. Accuracy and precision, expressed as recovery (%) and relative standard deviation (RSD, %) were in acceptable levels, ranging from 78.2 to 123.3% and below 15%, respectively for both FAA and TAA. Uncertainty was also below 12% for FAA and below 22% for TAA. Sensitivity of the method was high with LOD values ranging from 0.003 to 0.034g/100g for FAA and 0.001 to 0.004g/100g for TAA, while LOQ ranged from 0.009 to 0.104g/100g for FAA and 0.002 to 0.011g/100g for TAA. The method proved to be a fast and reliable tool for acquiring information on free and total amino acids profile in high protein content foodstuffs such as mussels.
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Affiliation(s)
- Emmanouil D Tsochatzis
- Aristotle University of Thessaloniki, Department of Chemical Engineering, 57124, Thessaloniki, Greece
| | - Olga Begou
- Aristotle University of Thessaloniki, Department of Chemistry, 57124, Thessaloniki, Greece
| | - Helen G Gika
- Aristotle University of Thessaloniki, Department of Chemical Engineering, 57124, Thessaloniki, Greece
| | - Panayotis D Karayannakidis
- Alexander Technological Educational Institution of Thessaloniki, Department of Food Technology, P.O. Box 141, GR-57400, Thessaloniki, Greece
| | - Stavros Kalogiannis
- Alexander Technological Educational Institution of Thessaloniki, Department of Nutrition and Dietetics, P.O. Box 141, GR-57400, Thessaloniki, Greece.
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26
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Begou O, Kontou A, Raikos N, Sarafidis K, Roilides E, Papadoyannis IN, Gika HG. An ultra-high pressure liquid chromatography-tandem mass spectrometry method for the quantification of teicoplanin in plasma of neonates. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1047:215-222. [PMID: 26896312 DOI: 10.1016/j.jchromb.2016.01.042] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 01/20/2016] [Accepted: 01/27/2016] [Indexed: 10/22/2022]
Abstract
The development and validation of an ultra-high pressure liquid chromatography (UHPLC) tandem mass spectrometry (MS/MS) method was performed with the aim to be applied for the quantification of plasma teicoplanin concentrations in neonates. Pharmacokinetic data of teicoplanin in the neonatal population is very limited, therefore, a sensitive and reliable method for the determination of all isoforms of teicoplanin applied in a low volume of sample is of real importance. Teicoplanin main components were extracted by a simple acetonitrile precipitation step and analysed on a C18 chromatographic column by a triple quadrupole MS with electrospray ionization. The method provides quantitative data over a linear range of 25-6400ng/mL with LOD 8.5ng/mL and LOQ 25ng/mL for total teicoplanin. The method was applied in plasma samples from neonates to support pharmacokinetic data and proved to be a reliable and fast method for the quantification of teicoplanin concentration levels in plasma of infants during therapy in Intensive Care Unit.
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Affiliation(s)
- O Begou
- Laboratory of Analytical Chemistry, School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - A Kontou
- 1st Department of Neonatology, Aristotle University of Thessaloniki, Hippokration Hospital, 54642 Thessaloniki, Greece
| | - N Raikos
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - K Sarafidis
- 1st Department of Neonatology, Aristotle University of Thessaloniki, Hippokration Hospital, 54642 Thessaloniki, Greece
| | - E Roilides
- Infectious Diseases Unit, 3rd Department of Pediatrics, Aristotle University of Thessaloniki, Hippokration Hospital, 54642 Thessaloniki, Greece
| | - I N Papadoyannis
- Laboratory of Analytical Chemistry, School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - H G Gika
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
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