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Wang X, Chen J, Xu H, Fan Y, Wang X, Zhang M, Liu Y, Li B, Liu J, Zhou H. Construction of an ultrasensitive dual-mode chiral molecules sensing platform based on molecularly imprinted polymer modified bipolar electrode. Biosens Bioelectron 2024; 243:115759. [PMID: 37857064 DOI: 10.1016/j.bios.2023.115759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 10/09/2023] [Accepted: 10/12/2023] [Indexed: 10/21/2023]
Abstract
Chiral molecules are abundant in nature. Phenylketonuria (PKU) is caused by the abnormal transformation of chiral molecules L-phenylalanine (L-Phe) in the human blood, which can cause irreversible harm to the human body. In this work, we documented an electrochemiluminescent (ECL) dual-mode sensor platform based on molecularly imprinted polymer (MIP) modified closed bipolar electrodes for high sensitivity detection of L-Phe and D-phenylalanine (D-Phe). In the anode chamber of a bipolar electrode modified with phenylalanine imprinting, Ru (bpy)32+ underwent a redox reaction to produce a chemiluminescence response under the stimulation of a driving voltage. At the same time, the reduction of the cathode film of the bipolar electrode was promoted, and the color changed from dark blue to nearly white. Thus, the dual-mode detection of target molecules is realized. The detection range of the sensor for phenylalanine reached 0.01-10,000 nM, and the detection limits of L-Phe and D-Phe were 3.9 pM and 4.6 pM (S/N = 3), respectively. This dual-mode system achieved high stability and high specificity, and also successfully realized the detection of actual samples, which is expected to achieve future clinical applications.
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Affiliation(s)
- Xinli Wang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Jiahe Chen
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Hui Xu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Yufei Fan
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Xue Wang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Meng Zhang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Yue Liu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
| | - Binxiao Li
- Department of Chemistry, Shanghai Stomatological Hospital, State Key Laboratory of Molecular Engineering of Polymers and Institute of Biomedical Sciences, Fudan University, Shanghai, 200433, PR China.
| | - Jing Liu
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, Shandong, 266590, PR China.
| | - Hong Zhou
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
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He X, Kuang J, Lai J, Huang J, Wang Y, Lan G, Xie Y, Shi X. A retrospective analysis of MS/MS screening for IEM in high-risk areas. BMC Med Genomics 2023; 16:57. [PMID: 36927542 PMCID: PMC10021976 DOI: 10.1186/s12920-023-01483-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 03/09/2023] [Indexed: 03/18/2023] Open
Abstract
Inborn errors of metabolism (IEM) can lead to severe motor and neurological developmental disorders and even disability and death in children due to untimely treatment. In this study, we used tandem mass spectrometry (MS/MS) for primary screening and recall of those with positive primary screening for rescreening. Further diagnosis was based on biochemical tests, imaging and clinical presentation as well as accurate genetic testing using multi-gene panel with high-throughput sequencing of 130 IEM-related genes. The screening population was 16,207 newborns born between July 1, 2019, and December 31, 2021. Based on the results, 8 newborns were diagnosed with IEM, constituting a detection rate of 1:2,026. Phenylketonuria was the most common form of IEM. In addition, seven genes associated with IEM were detected in these eight patients. All eight patients received standardized treatment starting in the neonatal period, and the follow-up results showed good growth and development. Therefore, our study suggests that MS/MS rescreening for IEM pathogenic variants in high-risk areas, combined with a sequencing validation strategy, can be highly effective in the early detection of affected children. This strategy, combined with early intervention, can be effective in preventing neonatal morbidity and improving population quality.
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Affiliation(s)
- Xiao He
- Department of Pediatrics, The Second Nanning People's Hospital, Nanning, 530031, Guangxi, China
| | - Juan Kuang
- Department of Pediatrics, The Second Nanning People's Hospital, Nanning, 530031, Guangxi, China
| | - Jiahong Lai
- Department of Clinical Medicine, The Third Clinical School of Guangzhou Medical University, Guangzhou, 511436, Guangdong, China
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, Guangdong, China
- Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, Guangdong, China
| | - Jingxiong Huang
- Department of Pediatrics, The Second Nanning People's Hospital, Nanning, 530031, Guangxi, China
| | - Yijin Wang
- Department of Pediatrics, The Second Nanning People's Hospital, Nanning, 530031, Guangxi, China
| | - Guofeng Lan
- Department of Pediatrics, The Second Nanning People's Hospital, Nanning, 530031, Guangxi, China
| | - Yingjun Xie
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, Guangdong, China.
- Guangdong Provincial Key Laboratory of Major Obstetric Diseases, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, Guangdong, China.
| | - Xuekai Shi
- Department of Pediatrics, The Second Nanning People's Hospital, Nanning, 530031, Guangxi, China.
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Zemanova M, Chrastina P, Sebron V, Prochazkova D, Jahnova H, Sanakova P, Prochazkova L, Tesarova B, Zeman J. Extremely low birthweight neonates with phenylketonuria require special dietary management. Acta Paediatr 2021; 110:2994-2999. [PMID: 34289149 DOI: 10.1111/apa.16035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 07/17/2021] [Accepted: 07/20/2021] [Indexed: 12/01/2022]
Abstract
AIM Extremely low birthweight (ELBW) neonates require a high protein intake, but this can be challenging in the very rare cases when they also have phenylketonuria (PKU). This is due to a lack of suitable parenteral nutrition or enteral formula. Our aim was to analyse tolerance to phenylalanine in these infants. MATERIAL There are approximately 110 000 children born in the Czech Republic each year. A neonatal screening programme from 2005 to 2020 found that 320 neonates had PKU, including 30 premature neonates with a birth weight of less than 2500 g. RESULTS This study focused on three neonates who were born with ELBWs of 720, 740 and 950 g, respectively. Phenylalanine levels normalised in ELBW neonates with PKU within 1 week of the introduction of low-phenylalanine parenteral or enteral nutrition. The tolerance to phenylalanine was very high (70-110 mg/kg) in the first months of life, due to a rapid weight gain, but significantly decreased during infancy. CONCLUSION Extremely low birthweight neonates with PKU need special dietary management. Regular assessments of phenylalanine are necessary during the first weeks of life to allow prompt dietary adjustments that reflect rapid weight gain and transitory high tolerance to phenylalanine.
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Affiliation(s)
- Marketa Zemanova
- Department of Biochemistry Faculty Hospital Motol Prague Czech Republic
| | - Petr Chrastina
- Department of Paediatrics and Inherited Metabolic Disorders First Faculty of Medicine Charles University and General Faculty Hospital Prague Czech Republic
| | - Vaclav Sebron
- Department of Gynecology First Faculty of Medicine Charles University and General Faculty Hospital Prague Czech Republic
| | - Dagmar Prochazkova
- Department of Paediatrics, Medical Genetics and Genomics University Hospital and Faculty of Medicine Masaryk University Brno Czech Republic
| | - Helena Jahnova
- Department of Paediatrics and Inherited Metabolic Disorders First Faculty of Medicine Charles University and General Faculty Hospital Prague Czech Republic
| | - Petra Sanakova
- Institute for Care of Mother and Child Prague Czech Republic
| | - Lucie Prochazkova
- Department of Paediatrics Regional Hospital Zlin Zlin Czech Republic
| | - Barbara Tesarova
- Department of Paediatrics Regional Hospital Zlin Zlin Czech Republic
| | - Jiri Zeman
- Department of Paediatrics and Inherited Metabolic Disorders First Faculty of Medicine Charles University and General Faculty Hospital Prague Czech Republic
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