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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] [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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Takayama T, Mizuno H, Toyo'oka T, Todoroki K. Introducing an Experimental Design Approach for Efficient Optimization of Chiral Derivatization Conditions for D- and L-Glyceric Acids. ANAL SCI 2019; 35:1053-1056. [PMID: 31178548 DOI: 10.2116/analsci.19n013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A sensitive analytical method was developed for individual analyses of D- and L-glyceric acids by chiral derivatization - liquid chromatography-tandem mass spectrometry. To elucidate rapid and efficient optimization for derivatization we newly introduced a concept of design of experiments (DOE). The optimization of major 5 factors in the derivatization could be predicted with only 28 measurements. By applying DOE to optimization, the yields of desired derivatives increased five-fold against before optimization.
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Affiliation(s)
- Takahiro Takayama
- Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences, University of Shizuoka
| | - Hajime Mizuno
- Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences, University of Shizuoka
| | - Toshimasa Toyo'oka
- Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences, University of Shizuoka
| | - Kenichiro Todoroki
- Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences, University of Shizuoka
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Zehavi Y, Mandel H, Eran A, Ravid S, Abu Rashid M, Jansen EEW, Wamelink MMC, Saada A, Shaag A, Elpeleg O, Spiegel R. Severe infantile epileptic encephalopathy associated with D-glyceric aciduria: report of a novel case and review. Metab Brain Dis 2019; 34:557-563. [PMID: 30637540 DOI: 10.1007/s11011-019-0384-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Accepted: 01/07/2019] [Indexed: 10/27/2022]
Abstract
D-glycerate 2 kinase (DGK) is an enzyme that mediates the conversion of D-glycerate, an intermediate metabolite of serine and fructose metabolism, to 2-phosphoglycerate. Deficiency of DGK leads to accumulation of D-glycerate in various tissues and its massive excretion in urine. D-glyceric aciduria (DGA) is an autosomal recessive metabolic disorder caused by mutations in the GLYCTK gene. The clinical spectrum of DGA is highly variable, ranging from severe progressive infantile encephalopathy to a practically asymptomatic condition. We describe a male patient from a consanguineous Arab family with infantile onset of DGA, characterized by profound psychomotor retardation, progressive microcephaly, intractable seizures, cortical blindness and deafness. Consecutive brain MR imaging showed an evolving brain atrophy, thinning of the corpus callosum and diffuse abnormal white matter signals. Whole exome sequencing identified the homozygous missense variant in the GLYCTK gene [c.455 T > C, NM_145262.3], which affected a highly conserved leucine residue located at a domain of yet unknown function of the enzyme [p.Leu152Pro, NP_660305]. In silico analysis of the variant supported its pathogenicity. A review of the 15 previously reported patients, together with the current one, confirms a clear association between DGA and severe neurological impairment. Yet, future studies of additional patients with DGA are required to better understand the clinical phenotype and pathogenesis.
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Affiliation(s)
- Yoav Zehavi
- Department of Pediatrics B, Emek Medical Center, Afula, Israel
| | - Hanna Mandel
- Institute of Human Genetics and Metabolic Diseases, Galilee Medical Center, Nahariya, Israel
| | - Ayelet Eran
- Neuroradiology Unit Department of Radiology, Rambam Health Care Campus, Haifa, Israel
- Rappaport School of Medicine, Technion, Haifa, Israel
| | - Sarit Ravid
- Rappaport School of Medicine, Technion, Haifa, Israel
- Pediatric Neurology Unit, Ruth Rappaport Children's Hospital, Rambam Health Care Campus, Haifa, Israel
| | | | - Erwin E W Jansen
- Metabolic Unit, Department of Clinical Chemistry, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Mirjam M C Wamelink
- Metabolic Unit, Department of Clinical Chemistry, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Ann Saada
- Monique and Jacques Roboh Department of Genetic Research, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
- Metabolic Laboratory, Department of Genetics and Metabolic Diseases, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Avraham Shaag
- Monique and Jacques Roboh Department of Genetic Research, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Orly Elpeleg
- Monique and Jacques Roboh Department of Genetic Research, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Ronen Spiegel
- Department of Pediatrics B, Emek Medical Center, Afula, Israel.
- Rappaport School of Medicine, Technion, Haifa, Israel.
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4
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He S, He Y, Cheng L, Wu Y, Ke Y. Novel chiral ionic liquids stationary phases for the enantiomer separation of chiral acid by high-performance liquid chromatography. Chirality 2018; 30:670-679. [PMID: 29476561 DOI: 10.1002/chir.22839] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 12/08/2017] [Accepted: 01/05/2018] [Indexed: 11/06/2022]
Abstract
Novel chiral ionic liquid stationary phases based on chiral imidazolium were prepared. The ionic liquid chiral selector was synthesized by ring opening of cyclohexene oxide with imidazole or 5,6-dimethylbenzimidazole, and then chemically modified by different substitute groups. Chiral stationary phases were prepared by bonding to the surface of silica sphere through thioene "click" reaction. Their enantioselective separations of chiral acids were evaluated by high-performance liquid chromatography. The retention of acid sample was related to the counterion concentration and showed a typical ion exchange process. The chiral separation abilities of chiral stationary phases were greatly influenced by the substituent group on the chiral selector as well as the mobile phase, which indicated that, besides ion exchange, other interactions such as steric hindrance, π-π interaction, and hydrogen bonding are important for the enantioselectivity. In this report, the influence of bulk solvent components, the effects of varying concentration, and the type of the counterion as well as the proportion of acid and basic additives were investigated in detail.
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Affiliation(s)
- Shanshan He
- Engineering Research Center of Pharmaceutical Process Chemistry, School of Pharmacy, Ministry of Education, East China University of Science and Technology, Shanghai, China
| | - Yunchao He
- Engineering Research Center of Pharmaceutical Process Chemistry, School of Pharmacy, Ministry of Education, East China University of Science and Technology, Shanghai, China
| | - Lingping Cheng
- Engineering Research Center of Pharmaceutical Process Chemistry, School of Pharmacy, Ministry of Education, East China University of Science and Technology, Shanghai, China
| | - Yaling Wu
- Engineering Research Center of Pharmaceutical Process Chemistry, School of Pharmacy, Ministry of Education, East China University of Science and Technology, Shanghai, China
| | - Yanxiong Ke
- Engineering Research Center of Pharmaceutical Process Chemistry, School of Pharmacy, Ministry of Education, East China University of Science and Technology, Shanghai, China
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Calderón C, Lämmerhofer M. Chiral separation of short chain aliphatic hydroxycarboxylic acids on cinchonan carbamate-based weak chiral anion exchangers and zwitterionic chiral ion exchangers. J Chromatogr A 2017; 1487:194-200. [PMID: 28139228 DOI: 10.1016/j.chroma.2017.01.060] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 01/21/2017] [Accepted: 01/23/2017] [Indexed: 11/29/2022]
Abstract
Chiral short chain aliphatic hydrocarboxylic acids (HCAs) are common compounds being part of different biological processes. In order to control and understand these processes is of pivotal importance to determine the identity of the involved enantiomer or their enantiomeric ratio. In this study the capacity of quinine- and quinidine-derived chiral stationary phases to perform the enantioseparation of eight chiral HCAs (tartaric acid, isocitric acid, malic acid, glyceric acid, 2-hydroxyglutaric acid, 2-hydroxybutyric acid, lactic acid and 3-hydroxybutyric acid) was evaluated. MS-compatible conditions consisting of ACN/MeOH mixtures as eluents with formic acid, acetic acid and/or their ammonium salts as additives, temperatures between 10 and 25°C (except for -20°C for 3-hydroxybutyric acid) and a flow rate of 1.00mL/min yielded full baseline resolution for all studied HCAs. Elution order for the HCA enantiomers was determined revealing different behaviors between the studied compounds.
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Affiliation(s)
- Carlos Calderón
- Institute of Pharmaceutical Sciences, Pharmaceutical (Bio-)Analysis, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Michael Lämmerhofer
- Institute of Pharmaceutical Sciences, Pharmaceutical (Bio-)Analysis, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany.
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