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Frazer LC, Yamaguchi Y, Singh DK, Akopyants NS, Good M. DNA methylation in necrotizing enterocolitis. Expert Rev Mol Med 2024; 26:e16. [PMID: 38557638 PMCID: PMC11140546 DOI: 10.1017/erm.2024.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 03/05/2024] [Accepted: 03/26/2024] [Indexed: 04/04/2024]
Abstract
Epigenetic modifications, such as DNA methylation, are enzymatically regulated processes that directly impact gene expression patterns. In early life, they are central to developmental programming and have also been implicated in regulating inflammatory responses. Research into the role of epigenetics in neonatal health is limited, but there is a growing body of literature related to the role of DNA methylation patterns and diseases of prematurity, such as the intestinal disease necrotizing enterocolitis (NEC). NEC is a severe intestinal inflammatory disease, but the key factors that precede disease development remain to be determined. This knowledge gap has led to a failure to design effective targeted therapies and identify specific biomarkers of disease. Recent literature has identified altered DNA methylation patterns in the stool and intestinal tissue of neonates with NEC. These findings provide the foundation for a new avenue in NEC research. In this review, we will provide a general overview of DNA methylation and then specifically discuss the recent literature related to methylation patterns in neonates with NEC. We will also discuss how DNA methylation is used as a biomarker for other disease states and how, with further research, methylation patterns may serve as potential biomarkers for NEC.
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Affiliation(s)
- Lauren C. Frazer
- Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Yukihiro Yamaguchi
- Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Dhirendra K. Singh
- Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Natalia S. Akopyants
- Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Misty Good
- Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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Gunasekaran A, Devette C, Levin S, Chaaban H. Biomarkers of Necrotizing Enterocolitis: The Search Continues. Clin Perinatol 2022; 49:181-194. [PMID: 35210000 DOI: 10.1016/j.clp.2021.11.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Necrotizing enterocolitis (NEC) is the most common gastrointestinal (GI) emergency in the neonatal intensive care unit. Despite advances in medical care, mortality and morbidity from NEC have not changed. This is likely due to the lack of a clear understanding of this multifactorial disease, and reliable biomarkers for accurate diagnosis of NEC. Currently, the diagnosis of NEC is made by a combination of nonspecific clinical signs, symptoms, and radiological findings. Though biomarkers have been studied extensively, none offer an acceptable sensitivity or specificity to be used. This review will focus on the available literature on biomarkers for preterm NEC, acknowledging the limitations in studies including the variability of inclusion criteria, and most importantly, the lack of gold standard case definition for NEC.
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Affiliation(s)
- Aarthi Gunasekaran
- Neonatal-Perinatal Medicine, The University of Oklahoma Health Sciences Center, 1200 N Everett Drive, Oklahoma City, OK 73104, USA
| | - Christa Devette
- Department of Pediatrics, The University of Oklahoma Health Sciences Center, 1200 N Everett Drive, Oklahoma City, OK 73104, USA.
| | - Samuel Levin
- Neonatal-Perinatal Medicine, The University of Oklahoma Health Sciences Center, 1200 N Everett Drive, Oklahoma City, OK 73104, USA.
| | - Hala Chaaban
- Neonatal-Perinatal Medicine, The University of Oklahoma Health Sciences Center, 1200 N Everett Drive, Oklahoma City, OK 73104, USA.
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Jiang YN, Ye YX, Sangild PT, Thymann T, Engelsen SB, Khakimov B, Jiang PP. Plasma Metabolomics to Evaluate Progression of Necrotising Enterocolitis in Preterm Pigs. Metabolites 2021; 11:metabo11050283. [PMID: 33946896 PMCID: PMC8146597 DOI: 10.3390/metabo11050283] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/19/2021] [Accepted: 04/26/2021] [Indexed: 02/04/2023] Open
Abstract
Necrotising enterocolitis (NEC) is a microbiome-dependent gut disease in preterm infants in early life. Antibiotic treatment is a common intervention for NEC. How NEC lesions, with or without antibiotics, affect plasma metabolome was explored in this study. Formula-fed preterm pigs were used as a model for human NEC and treated with saline, parenteral or oral antibiotics (n = 15-17) for four days after delivery. Gut tissues were collected for evaluation of NEC-like lesions and plasma for metabolomic analysis by proton nuclear magnetic resonance spectroscopy (1H-NMR). Metabolites were annotated, quantified and subjected to statistical modelling to delineate the effects of NEC and antibiotic treatment. Presence of severe NEC lesions, not antibiotic treatment, was the main drive for plasma metabolite changes. Relative to other pigs, pigs with severe NEC lesions had higher levels of alanine, histidine and myo-inositol, and lower levels of 3-hydroxybutyric acid and isobutyric acid. Across NEC lesion states (healthy, mild, severe), antibiotics directly affected only a few metabolites (tryptophan, 3-phenyllactic acid). Together and independently, NEC and antibiotic treatment affected circulating metabolites in preterm pigs. Amino acids and plasma metabolites, partly related to the gut microbiome, may be helpful to monitor progression of NEC lesions after proper validation.
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Affiliation(s)
- Yan-Nan Jiang
- School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (Y.-N.J.); (Y.-X.Y.)
| | - Yong-Xin Ye
- School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (Y.-N.J.); (Y.-X.Y.)
| | - Per Torp Sangild
- Section for Comparative Paediatrics and Nutrition, Department of Veterinary and Animal Sciences, University of Copenhagen, DK-1870 Frederiksberg, Denmark; (P.T.S.); (T.T.)
- Department of Neonatology, Rigshospitalet, DK-2100 Copenhagen, Denmark
- Department of Paediatrics, Odense University Hospital, DK-5000 Odense, Denmark
| | - Thomas Thymann
- Section for Comparative Paediatrics and Nutrition, Department of Veterinary and Animal Sciences, University of Copenhagen, DK-1870 Frederiksberg, Denmark; (P.T.S.); (T.T.)
| | - Søren Balling Engelsen
- Department of Food Science, University of Copenhagen, DK-1958 Frederiksberg, Denmark; (S.B.E.); (B.K.)
| | - Bekzod Khakimov
- Department of Food Science, University of Copenhagen, DK-1958 Frederiksberg, Denmark; (S.B.E.); (B.K.)
| | - Ping-Ping Jiang
- School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; (Y.-N.J.); (Y.-X.Y.)
- Section for Comparative Paediatrics and Nutrition, Department of Veterinary and Animal Sciences, University of Copenhagen, DK-1870 Frederiksberg, Denmark; (P.T.S.); (T.T.)
- Correspondence:
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Course CW, Watkins J, Muller C, Odd D, Kotecha S, Chakraborty M. Volatile organic compounds as disease predictors in newborn infants: a systematic review. J Breath Res 2021; 15. [PMID: 33530065 DOI: 10.1088/1752-7163/abe283] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 02/02/2021] [Indexed: 11/11/2022]
Abstract
Volatile organic compounds (VOC) detected in human breath, urine, stool, sweat, saliva, and blood result from metabolic processes in the body during health or disease. Using sophisticated measurement systems, small amounts of these compounds can be detected in the above bodily fluids. Multiple studies in adults and children have shown the potential of these compounds to differentiate between healthy individuals and patients by detecting profiles of compounds in non-invasively collected samples. However, the detection of biomarkers in VOCs from neonates is particularly attractive due to the non-invasive nature of its approach, and its ability to track disease progress by longitudinal sampling. In this work we have reviewed the literature on the use of VOCs in neonates and identified areas for future work.
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Affiliation(s)
- Christopher William Course
- University Hospital of Wales, University Hospital of Wales, Cardiff, Cardiff, CF14 4XW, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
| | - John Watkins
- Cardiff University, Cardiff University, Cardiff, CF14 4YS, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
| | - Carsten Muller
- Cardiff University, Cardiff University, Cardiff, CF14 4YS, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
| | - David Odd
- Cardiff University, Cardiff University, Cardiff, CF14 4YS, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
| | - Sailesh Kotecha
- Cardiff University, University Hospital of Wales, Cardiff, CF14 4XW, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
| | - Mallinath Chakraborty
- Cardiff University, University Hospital of Wales, Cardiff, CF10 3AT, UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND
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Recent Potential Noninvasive Biomarkers in Necrotizing Enterocolitis. Gastroenterol Res Pract 2019; 2019:8413698. [PMID: 31178908 PMCID: PMC6501130 DOI: 10.1155/2019/8413698] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 12/31/2018] [Accepted: 02/12/2019] [Indexed: 12/27/2022] Open
Abstract
Necrotizing enterocolitis (NEC) is a rare but devastating gastrointestinal disease that predominately affects preterm neonates. Numerous studies have revealed that NEC is strongly associated with very low birth weight, degree of prematurity, formula feeding, infection, hypoxic/ischemic injury, and enteric dysbiosis. Given these clinical associations, the search for a deeper understanding of disease pathogenesis has led to an intense interest in the discovery and development of noninvasive biomarkers of NEC from stool, urine, and serum. Biomarkers for NEC may serve at least two general purposes of urgent unmet need: to improve diagnostic accuracy and disease prediction and to reveal the mechanism of the disease. This review will provide an overview of recent research focused on clinical NEC and highlight the advances that were made within the past five years towards the development of noninvasive diagnostic biomarkers.
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Shores DR, Everett AD. Children as Biomarker Orphans: Progress in the Field of Pediatric Biomarkers. J Pediatr 2018; 193:14-20.e31. [PMID: 29031860 PMCID: PMC5794519 DOI: 10.1016/j.jpeds.2017.08.077] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 08/04/2017] [Accepted: 08/30/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Darla R Shores
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Johns Hopkins School of Medicine, Baltimore, MD.
| | - Allen D Everett
- Division of Cardiology, Department of Pediatrics, Johns Hopkins School of Medicine, Baltimore, MD
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Caplan MS. Paediatrics: Are human milk oligosaccharides the magic bullet for necrotizing enterocolitis? Nat Rev Gastroenterol Hepatol 2017; 14:394-395. [PMID: 28513631 DOI: 10.1038/nrgastro.2017.65] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Michael S Caplan
- Department of Pediatrics, NorthShore University HealthSystem, Evanston Hospital, 2650 Ridge Avenue, Evanston, Illinois 60201, USA
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