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Kupkova K, Shetty SJ, Pray-Grant MG, Grant PA, Haque R, Petri WA, Auble DT. Globally elevated levels of histone H3 lysine 9 trimethylation in early infancy are associated with poor growth trajectory in Bangladeshi children. Clin Epigenetics 2023; 15:129. [PMID: 37568218 PMCID: PMC10422758 DOI: 10.1186/s13148-023-01548-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 08/06/2023] [Indexed: 08/13/2023] Open
Abstract
BACKGROUND Stunting is a global health problem affecting hundreds of millions of children worldwide and contributing to 45% of deaths in children under the age of five. Current therapeutic interventions have limited efficacy. Understanding the epigenetic changes underlying stunting will elucidate molecular mechanisms and likely lead to new therapies. RESULTS We profiled the repressive mark histone H3 lysine 9 trimethylation (H3K9me3) genome-wide in peripheral blood mononuclear cells (PBMCs) from 18-week-old infants (n = 15) and mothers (n = 14) enrolled in the PROVIDE study established in an urban slum in Bangladesh. We associated H3K9me3 levels within individual loci as well as genome-wide with anthropometric measurements and other biomarkers of stunting and performed functional annotation of differentially affected regions. Despite the relatively small number of samples from this vulnerable population, we observed globally elevated H3K9me3 levels were associated with poor linear growth between birth and one year of age. A large proportion of the differentially methylated genes code for proteins targeting viral mRNA and highly significant regions were enriched in transposon elements with potential regulatory roles in immune system activation and cytokine production. Maternal data show a similar trend with child's anthropometry; however, these trends lack statistical significance to infer an intergenerational relationship. CONCLUSIONS We speculate that high H3K9me3 levels may result in poor linear growth by repressing genes involved in immune system activation. Importantly, changes to H3K9me3 were detectable before the overt manifestation of stunting and therefore may be valuable as new biomarkers of stunting.
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Affiliation(s)
- Kristyna Kupkova
- Department of Biochemistry and Molecular Genetics, University of Virginia Health System, Charlottesville, VA, 22908, USA
- Center for Public Health Genomics, University of Virginia Health System, Charlottesville, VA, 22908, USA
| | - Savera J Shetty
- Department of Biochemistry and Molecular Genetics, University of Virginia Health System, Charlottesville, VA, 22908, USA
| | - Marilyn G Pray-Grant
- Department of Biomedical Science, Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, 33431, USA
| | - Patrick A Grant
- Department of Biomedical Science, Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, 33431, USA
| | - Rashidul Haque
- Infectious Disease Division, International Centre for Diarrhoeal Disease Research, Dhaka, 1000, Bangladesh
| | - William A Petri
- Division of Infectious Diseases and International Health, University of Virginia Health System, Charlottesville, VA, 22908, USA
| | - David T Auble
- Department of Biochemistry and Molecular Genetics, University of Virginia Health System, Charlottesville, VA, 22908, USA.
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2
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Hendrickson SM, Thomas A, Raué HP, Prongay K, Haertel AJ, Rhoades NS, Slifka JF, Gao L, Quintel BK, Amanna IJ, Messaoudi I, Slifka MK. Campylobacter vaccination reduces diarrheal disease and infant growth stunting among rhesus macaques. Nat Commun 2023; 14:3806. [PMID: 37365162 PMCID: PMC10293212 DOI: 10.1038/s41467-023-39433-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 06/12/2023] [Indexed: 06/28/2023] Open
Abstract
Campylobacter-associated enteric disease is estimated to be responsible for more than 160 million cases of gastroenteritis each year and is linked to growth stunting of infants living under conditions of poor sanitation and hygiene. Here, we examine naturally occurring Campylobacter-associated diarrhea among rhesus macaques as a model to determine if vaccination could reduce severe diarrheal disease and infant growth stunting. Compared to unvaccinated controls, there are no Campylobacter diarrhea-associated deaths observed among vaccinated infant macaques and all-cause diarrhea-associated infant mortality is decreased by 76% (P = 0.03). By 9 months of age, there is a 1.3 cm increase in dorsal length that equaled a significant 1.28 LAZ (Length-for-Age Z score) improvement in linear growth among vaccinated infants compared to their unvaccinated counterparts (P = 0.001). In this work, we show that Campylobacter vaccination not only reduces diarrheal disease but also potentially serves as an effective intervention that improves infant growth trajectories.
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Affiliation(s)
- Sara M Hendrickson
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, 97006, USA
| | - Archana Thomas
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, 97006, USA
| | - Hans-Peter Raué
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, 97006, USA
| | - Kamm Prongay
- Division of Animal Resources and Research Support, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, 97006, USA
| | - Andrew J Haertel
- Division of Animal Resources and Research Support, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, 97006, USA
| | - Nicholas S Rhoades
- Department of Microbiology, Immunology and Molecular Genetics, University of Kentucky, College of Medicine, Lexington, KY, 40506, USA
| | - Jacob F Slifka
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, 97006, USA
| | - Lina Gao
- Biostatistics and Bioinformatics Core, Oregon National Primate Research Center, Biostatistics Shared Resource, Knight Cancer Institute, Portland, OR, 97239, USA
| | | | - Ian J Amanna
- Najít Technologies, Inc., Beaverton, OR, 97006, USA
| | - Ilhem Messaoudi
- Department of Microbiology, Immunology and Molecular Genetics, University of Kentucky, College of Medicine, Lexington, KY, 40506, USA
| | - Mark K Slifka
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, 97006, USA.
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Oriá RB, Freitas RS, Roque CR, Nascimento JCR, Silva AP, Malva JO, Guerrant RL, Vitek MP. ApoE Mimetic Peptides to Improve the Vicious Cycle of Malnutrition and Enteric Infections by Targeting the Intestinal and Blood-Brain Barriers. Pharmaceutics 2023; 15:pharmaceutics15041086. [PMID: 37111572 PMCID: PMC10141726 DOI: 10.3390/pharmaceutics15041086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/21/2023] [Accepted: 03/24/2023] [Indexed: 03/30/2023] Open
Abstract
Apolipoprotein E (apoE) mimetic peptides are engineered fragments of the native apoE protein’s LDL-receptor binding site that improve the outcomes following a brain injury and intestinal inflammation in a variety of models. The vicious cycle of enteric infections and malnutrition is closely related to environmental-driven enteric dysfunction early in life, and such chronic inflammatory conditions may blunt the developmental trajectories of children with worrisome and often irreversible physical and cognitive faltering. This window of time for microbiota maturation and brain plasticity is key to protecting cognitive domains, brain health, and achieving optimal/full developmental potential. This review summarizes the potential role of promising apoE mimetic peptides to improve the function of the gut-brain axis, including targeting the blood-brain barrier in children afflicted with malnutrition and enteric infections.
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Affiliation(s)
- Reinaldo B. Oriá
- Laboratory of Tissue Healing, Ontogeny and Nutrition, Department of Morphology, School of Medicine, Institute of Biomedicine, Federal University of Ceara, Fortaleza 60430-270, Brazil
- Correspondence: ; Tel.: +55-85-3366-8239
| | - Raul S. Freitas
- Laboratory of Tissue Healing, Ontogeny and Nutrition, Department of Morphology, School of Medicine, Institute of Biomedicine, Federal University of Ceara, Fortaleza 60430-270, Brazil
| | - Cássia R. Roque
- Laboratory of Tissue Healing, Ontogeny and Nutrition, Department of Morphology, School of Medicine, Institute of Biomedicine, Federal University of Ceara, Fortaleza 60430-270, Brazil
| | - José Carlos R. Nascimento
- Laboratory of Tissue Healing, Ontogeny and Nutrition, Department of Morphology, School of Medicine, Institute of Biomedicine, Federal University of Ceara, Fortaleza 60430-270, Brazil
- Institute of Health Sciences, Medicine, University of International Integration of Afro-Brazilian Lusofonia, Redenção 62790-970, Brazil
| | - Ana Paula Silva
- Institute of Pharmacology and Experimental Therapeutics and Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine and Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-548 Coimbra, Portugal
| | - João O. Malva
- Institute of Pharmacology and Experimental Therapeutics and Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine and Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-548 Coimbra, Portugal
| | - Richard L. Guerrant
- Division of Infectious Diseases and International Health, Department of Medicine, School of Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Michael P. Vitek
- Division of Neurology, Duke University Medical Center, Durham, NC 27710, USA
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4
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Lynch LE, Hair AB, Soni KG, Yang H, Gollins LA, Narvaez-Rivas M, Setchell KDR, Preidis GA. Cholestasis impairs gut microbiota development and bile salt hydrolase activity in preterm neonates. Gut Microbes 2023; 15:2183690. [PMID: 36843227 PMCID: PMC9980517 DOI: 10.1080/19490976.2023.2183690] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/28/2023] Open
Abstract
Cholestasis refers to impaired bile flow from the liver to the intestine. In neonates, cholestasis causes poor growth and may progress to liver failure and death. Normal bile flow requires an intact liver-gut-microbiome axis, whereby liver-derived primary bile acids are transformed into secondary bile acids. Microbial bile salt hydrolase (BSH) enzymes are responsible for the first step, deconjugating glycine- and taurine-conjugated primary bile acids. Cholestatic neonates often are treated with the potent choleretic bile acid ursodeoxycholic acid (UDCA), although interactions between UDCA, gut microbes, and other bile acids are poorly understood. To gain insight into how the liver-gut-microbiome axis develops in extreme prematurity and how cholestasis alters this maturation, we conducted a nested case-control study collecting 124 stool samples longitudinally from 24 preterm infants born at mean 27.2 ± 1.8 weeks gestation and 946 ± 249.6 g, half of whom developed physiologic cholestasis. Samples were analyzed by whole metagenomic sequencing, in vitro BSH enzyme activity assays optimized for low biomass fecal samples, and quantitative mass spectrometry to measure the bile acid metabolome. In extremely preterm neonates, acquisition of the secondary bile acid biosynthesis pathway and BSH genes carried by Clostridium perfringens are the most prominent features of early microbiome development. Cholestasis interrupts this developmental pattern. BSH gene abundance and enzyme activity are profoundly reduced in cholestatic neonates, resulting in decreased quantities of unconjugated bile acids. UDCA restores total fecal bile acid levels in cholestatic neonates, but this is due to a 522-fold increase in fecal UDCA. A majority of bile acids in early development are atypical positional and stereo-isomers of bile acids. We report novel associations linking isomeric bile acids and BSH activity to neonatal growth trajectories. These data highlight deconjugation of bile acids as a key microbial function that is acquired in early neonatal development and impaired by cholestasis.
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Affiliation(s)
- Lauren E. Lynch
- Division of Gastroenterology, Hepatology & Nutrition, Department of Pediatrics, Baylor College of Medicine and Texas Children’s Hospital, Houston, TX, USA
| | - Amy B. Hair
- Division of Neonatology, Department of Pediatrics, Baylor College of Medicine and Texas Children’s Hospital, Houston, TX, USA,CONTACT Amy B. Hair Division of Neonatology, Department of Pediatrics, Baylor College of Medicine and Texas Children’s Hospital, 6621 Fannin Street, Suite A5590, Houston, TX77030, USA
| | - Krishnakant G. Soni
- Division of Gastroenterology, Hepatology & Nutrition, Department of Pediatrics, Baylor College of Medicine and Texas Children’s Hospital, Houston, TX, USA
| | - Heeju Yang
- Division of Neonatology, Department of Pediatrics, Baylor College of Medicine and Texas Children’s Hospital, Houston, TX, USA
| | - Laura A. Gollins
- Division of Neonatology, Department of Pediatrics, Baylor College of Medicine and Texas Children’s Hospital, Houston, TX, USA
| | - Monica Narvaez-Rivas
- Division of Pathology and Laboratory Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
| | - Kenneth D. R. Setchell
- Division of Pathology and Laboratory Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Geoffrey A. Preidis
- Division of Gastroenterology, Hepatology & Nutrition, Department of Pediatrics, Baylor College of Medicine and Texas Children’s Hospital, Houston, TX, USA,Geoffrey A. Preidis Division of Gastroenterology, Hepatology & Nutrition, Department of Pediatrics, Baylor College of Medicine and Texas Children’s Hospital, 1102 Bates Avenue, Feigin Tower Suite 860, Houston, TX77030, USA
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5
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Hu G, Ling C, Chi L, Thind MK, Furse S, Koulman A, Swann JR, Lee D, Calon MM, Bourdon C, Versloot CJ, Bakker BM, Gonzales GB, Kim PK, Bandsma RHJ. The role of the tryptophan-NAD + pathway in a mouse model of severe malnutrition induced liver dysfunction. Nat Commun 2022; 13:7576. [PMID: 36481684 PMCID: PMC9732354 DOI: 10.1038/s41467-022-35317-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 11/29/2022] [Indexed: 12/13/2022] Open
Abstract
Mortality in children with severe malnutrition is strongly related to signs of metabolic dysfunction, such as hypoglycemia. Lower circulating tryptophan levels in children with severe malnutrition suggest a possible disturbance in the tryptophan-nicotinamide adenine dinucleotide (TRP-NAD+) pathway and subsequently in NAD+ dependent metabolism regulator sirtuin1 (SIRT1). Here we show that severe malnutrition in weanling mice, induced by 2-weeks of low protein diet feeding from weaning, leads to an impaired TRP-NAD+ pathway with decreased NAD+ levels and affects hepatic mitochondrial turnover and function. We demonstrate that stimulating the TRP-NAD+ pathway with NAD+ precursors improves hepatic mitochondrial and overall metabolic function through SIRT1 modulation. Activating SIRT1 is sufficient to induce improvement in metabolic functions. Our findings indicate that modulating the TRP-NAD+ pathway can improve liver metabolic function in a mouse model of severe malnutrition. These results could lead to the development of new interventions for children with severe malnutrition.
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Affiliation(s)
- Guanlan Hu
- grid.17063.330000 0001 2157 2938Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, M5G 1A8 Toronto, Canada ,grid.42327.300000 0004 0473 9646Translational Medicine Program, The Hospital for Sick Children, M5G 0A4 Toronto, Canada
| | - Catriona Ling
- grid.17063.330000 0001 2157 2938Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, M5G 1A8 Toronto, Canada ,grid.42327.300000 0004 0473 9646Translational Medicine Program, The Hospital for Sick Children, M5G 0A4 Toronto, Canada
| | - Lijun Chi
- grid.42327.300000 0004 0473 9646Translational Medicine Program, The Hospital for Sick Children, M5G 0A4 Toronto, Canada
| | - Mehakpreet K. Thind
- grid.17063.330000 0001 2157 2938Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, M5G 1A8 Toronto, Canada ,grid.42327.300000 0004 0473 9646Translational Medicine Program, The Hospital for Sick Children, M5G 0A4 Toronto, Canada
| | - Samuel Furse
- grid.5335.00000000121885934Core Metabolomics and Lipidomics Laboratory, Wellcome Trust-Metabolic Research Laboratories, Institute of Metabolic Sciences, University of Cambridge, CB2 0QQ Cambridge, UK ,grid.4903.e0000 0001 2097 4353Biological Chemistry Group, Royal Botanic Gardens, Kew, Kew Green, TW9 3AE Richmond, UK
| | - Albert Koulman
- grid.5335.00000000121885934Core Metabolomics and Lipidomics Laboratory, Wellcome Trust-Metabolic Research Laboratories, Institute of Metabolic Sciences, University of Cambridge, CB2 0QQ Cambridge, UK
| | - Jonathan R. Swann
- grid.5491.90000 0004 1936 9297School of Human Development and Health, Faculty of Medicine, University of Southampton, SO16 6YD Southampton, UK ,grid.7445.20000 0001 2113 8111Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, SW7 2AZ London, UK
| | - Dorothy Lee
- grid.42327.300000 0004 0473 9646Translational Medicine Program, The Hospital for Sick Children, M5G 0A4 Toronto, Canada
| | - Marjolein M. Calon
- grid.42327.300000 0004 0473 9646Translational Medicine Program, The Hospital for Sick Children, M5G 0A4 Toronto, Canada
| | - Celine Bourdon
- grid.42327.300000 0004 0473 9646Translational Medicine Program, The Hospital for Sick Children, M5G 0A4 Toronto, Canada ,grid.511677.3The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
| | - Christian J. Versloot
- grid.4494.d0000 0000 9558 4598Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Barbara M. Bakker
- grid.4494.d0000 0000 9558 4598Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Gerard Bryan Gonzales
- grid.42327.300000 0004 0473 9646Translational Medicine Program, The Hospital for Sick Children, M5G 0A4 Toronto, Canada ,grid.4818.50000 0001 0791 5666Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | - Peter K. Kim
- grid.17063.330000 0001 2157 2938Department of Biochemistry, University of Toronto, M5S 1A8 Toronto, Canada ,grid.42327.300000 0004 0473 9646Cell Biology Program, The Hospital for Sick Children, M5G 0A4 Toronto, Canada
| | - Robert H. J. Bandsma
- grid.17063.330000 0001 2157 2938Department of Nutritional Sciences, Temerty Faculty of Medicine, University of Toronto, M5G 1A8 Toronto, Canada ,grid.42327.300000 0004 0473 9646Translational Medicine Program, The Hospital for Sick Children, M5G 0A4 Toronto, Canada ,grid.511677.3The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya ,grid.4494.d0000 0000 9558 4598Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands ,grid.42327.300000 0004 0473 9646Division of Gastroenterology, Hepatology, and Nutrition, The Hospital for Sick Children, M5G 0A4 Toronto, Canada
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Investigation of metabolomic biomarkers for childhood executive function and the role of genetic and dietary factors: The GUSTO cohort. EBioMedicine 2022; 81:104111. [PMID: 35728485 PMCID: PMC9214799 DOI: 10.1016/j.ebiom.2022.104111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 05/21/2022] [Accepted: 05/28/2022] [Indexed: 11/22/2022] Open
Abstract
Background Few studies have investigated molecular biomarkers of specific executive function (EF) skills in children. We aimed to characterise the prospective associations between metabolome and multiple domains of EF using a bidirectional design. Methods This study was conducted within a longitudinal birth cohort, the Growing Up in Singapore Towards healthy Outcomes (GUSTO). Circulating levels of 165 metabolites were quantified using a nuclear magnetic resonance based metabolomics platform (n = 457 (∼6yrs) and n = 524 (∼8yrs)). Parent-reported EF was available for 495 children (∼7yrs). Multivariate linear regression was used to assess the metabolite-EF relationships. We examined the role of body composition, dietary factors, and genetics in the metabolite-EF associations. Findings Higher leucine level (∼6yrs) was associated with poorer EF (∼7yrs, Initiate (P = 0.003) and Working Memory (P = 0.004)). EF (∼7yrs) was not associated with leucine (∼8yrs). Importantly, we found weak evidence for associations of dietary factors (∼5yrs) with leucine (∼6yrs) and EF (∼7yrs). Each copy of C allele in rs1260326 (a leucine-related polymorphism) was associated with higher leucine level and poorer Initiate and Working Memory (P < 0.05). Amongst those with less strongly genetically influenced leucine, inverse association between leucine and cognitive regulation were weaker among those with higher BMI. Interpretation The observed association between higher leucine level and poorer EF may be determined by genetics and may not be easily amenable to dietary interventions. Further research is needed for validation and to understand mechanisms. Funding Singapore National Research Foundation and Agency for Science, Technology and Research.
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Exploratory Analysis of Selected Components of the mTOR Pathway Reveals Potentially Crucial Associations with Childhood Malnutrition. Nutrients 2022; 14:nu14081612. [PMID: 35458174 PMCID: PMC9031007 DOI: 10.3390/nu14081612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/13/2022] [Accepted: 03/25/2022] [Indexed: 12/10/2022] Open
Abstract
Dysregulations in the mammalian target of rapamycin (mTOR) pathway are associated with several human anomalies. We aimed to elucidate possible implications for potential aberrations in the mTOR pathway with childhood malnutrition. We analyzed the activity of phospho-mTORC1 and the expressions of several mTOR pathway genes, namely: MTOR, TSC1, LAMTOR2, RPS6K1 and RICTOR from peripheral blood mononuclear cells isolated from venous blood of children suffering from different forms of malnutrition and compared them with those from healthy children. Significant reduction in the phosphorylation of mTORC1 was noted, as well as a decrease in expression of LAMTOR2 gene and increase in TSC1 gene expression were observed between malnourished children in comparison to the healthy children. The deregulation in the activity of the TSC1 and LAMTOR2 gene was significantly associated with all forms of childhood malnutrition. Our findings provide key insights into possible down-modulation in the overall activity of the mTOR pathway in childhood malnutrition. Further studies focusing on the analysis of a multitude of components involved in the mTOR pathway both at the gene and protein expression levels are required for conclusive evidence for the aforementioned proposition.
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8
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Marx W, Thomson S, O'Hely M, Symeonides C, Collier F, Tang MLK, Loughman A, Burgner D, Saffery R, Pham C, Mansell T, Sly PD, Vuillermin P, Ranganathan S, Ponsonby AL. Maternal inflammatory and omega-3 fatty acid pathways mediate the association between socioeconomic disadvantage and childhood cognition. Brain Behav Immun 2022; 100:211-218. [PMID: 34896180 DOI: 10.1016/j.bbi.2021.12.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 11/28/2021] [Accepted: 12/03/2021] [Indexed: 10/19/2022] Open
Abstract
Poor cognitive outcomes in early childhood predict poor educational outcomes and diminished health over the life course. We sought to investigate (i) whether maternal metabolites predict child cognition, and (ii) if maternal metabolomic profile mediates the relationship between environmental exposures and child cognition. Metabolites were measured using nuclear magnetic resonance-based metabolomics in pregnant women from a population-derived birth cohort. Child cognition was measured at age 2 years. In 662 mother-child pairs, elevated inflammatory markers (β = -2.62; 95% CI -4.10, -1.15; P = 0.0005) and lower omega-3 fatty acid-related metabolites (β = 0.49; 95% CI 0.09, 0.88; P = 0.02) in the mother were associated with lower child cognition and partially mediated the association between lower child cognition and multiple risk factors common to socioeconomic disadvantage. Modifying maternal prenatal metabolic pathways related to inflammation and omega-3 fatty acids may offset the adverse associations between prenatal risk factors related to socioeconomic disadvantage and low child cognition.
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Affiliation(s)
- Wolfgang Marx
- Florey Institute for Neuroscience and Mental Health, 30 Royal Parade, Parkville, VIC 3052, Australia; Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, 299 Ryrie Street, Geelong, VIC 3220, Australia
| | - Sarah Thomson
- Florey Institute for Neuroscience and Mental Health, 30 Royal Parade, Parkville, VIC 3052, Australia
| | - Martin O'Hely
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, 299 Ryrie Street, Geelong, VIC 3220, Australia; Murdoch Children's Research Institute, Royal Children's Hospital, 50 Flemington Rd, Parkville, VIC 3052, Australia
| | - Christos Symeonides
- Murdoch Children's Research Institute, Royal Children's Hospital, 50 Flemington Rd, Parkville, VIC 3052, Australia; Minderoo Foundation, Perth, VIC 6000, Australia; Royal Children's Hospital, 50 Flemington Rd, Parkville, VIC 3052, Australia
| | - Fiona Collier
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, 299 Ryrie Street, Geelong, VIC 3220, Australia
| | - Mimi L K Tang
- Murdoch Children's Research Institute, Royal Children's Hospital, 50 Flemington Rd, Parkville, VIC 3052, Australia; Royal Children's Hospital, 50 Flemington Rd, Parkville, VIC 3052, Australia; University of Melbourne, Grattan Street, Parkville, VIC 3010, Australia
| | - Amy Loughman
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, 299 Ryrie Street, Geelong, VIC 3220, Australia
| | - David Burgner
- Murdoch Children's Research Institute, Royal Children's Hospital, 50 Flemington Rd, Parkville, VIC 3052, Australia; Department of Paediatrics, University of Melbourne, Grattan Street, Parkville, VIC 3010, Australia
| | - Richard Saffery
- Murdoch Children's Research Institute, Royal Children's Hospital, 50 Flemington Rd, Parkville, VIC 3052, Australia; Department of Paediatrics, University of Melbourne, Grattan Street, Parkville, VIC 3010, Australia
| | - Cindy Pham
- Florey Institute for Neuroscience and Mental Health, 30 Royal Parade, Parkville, VIC 3052, Australia; Murdoch Children's Research Institute, Royal Children's Hospital, 50 Flemington Rd, Parkville, VIC 3052, Australia
| | - Toby Mansell
- Murdoch Children's Research Institute, Royal Children's Hospital, 50 Flemington Rd, Parkville, VIC 3052, Australia; Department of Paediatrics, University of Melbourne, Grattan Street, Parkville, VIC 3010, Australia
| | - Peter D Sly
- Child Health Research Centre, The University of Queensland, 62 Graham St, South Brisbane, QLD 4101, Australia
| | - Peter Vuillermin
- Deakin University, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, 299 Ryrie Street, Geelong, VIC 3220, Australia; Barwon Health, Bellerine St, Geelong, VIC 3220, Australia
| | - Sarath Ranganathan
- Murdoch Children's Research Institute, Royal Children's Hospital, 50 Flemington Rd, Parkville, VIC 3052, Australia
| | - Anne-Louise Ponsonby
- Florey Institute for Neuroscience and Mental Health, 30 Royal Parade, Parkville, VIC 3052, Australia; Murdoch Children's Research Institute, Royal Children's Hospital, 50 Flemington Rd, Parkville, VIC 3052, Australia.
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9
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Non-Targeted Dried Blood Spot-Based Metabolomics Analysis Showed Rice Bran Supplementation Effects Multiple Metabolic Pathways during Infant Weaning and Growth in Mali. Nutrients 2022; 14:nu14030609. [PMID: 35276967 PMCID: PMC8840250 DOI: 10.3390/nu14030609] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/25/2022] [Accepted: 01/25/2022] [Indexed: 12/29/2022] Open
Abstract
Rice bran contains essential nutrients, antioxidants, and bioactives with anti-inflammatory and diarrheal protective properties important for infants. This 6-month randomized controlled trial investigated the effects of heat-stabilized rice bran supplementation during Malian infant weaning. Fifty healthy 6-month-old infants were randomized to a rice bran intervention (N = 25) or non-intervention control group (N = 25). Intervention infants received dose-escalating rice bran supplementation for 6 months (1–5 g/day). Monthly infant dried blood spot and anthropometric measurements were collected. Dried blood spot metabolite abundances were compared monthly according to diet for six months. Supplementation resulted in favorable weight-for-age and weight-for-length z-score changes. Non-targeted dried blood spot-based metabolomics identified 796 metabolites, of which 33% had significant fold differences between groups (7–12 months). Lipids and amino acids represented 70.6% of the metabolites identified. Rice bran supplementation during infant weaning significantly modulated the metabolites involved in antioxidant defenses and with neuroactive properties including reduced glutathione, glycine, glutamate, cysteinylglycine, tryptophan betaine, and choline. These findings support rice bran as a weaning ingredient to meet infant nutritional requirements and with the potential to reduce oxidative stress and improve cognitive outcomes. This study provides evidence for dried blood spots as a cost-effective tool to detect infant biomarkers of nutritional and metabolic status.
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10
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Hendrickson SM, Thomas A, Prongay K, Haertel AJ, Garzel LM, Gill L, Barr T, Rhoades NS, Reader R, Galan M, Carroll JM, Roberts CT, Gao L, Amanna IJ, Messaoudi I, Slifka MK. Reduced infant rhesus macaque growth rates due to environmental enteric dysfunction and association with histopathology in the large intestine. Nat Commun 2022; 13:234. [PMID: 35017515 PMCID: PMC8752659 DOI: 10.1038/s41467-021-27925-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 12/15/2021] [Indexed: 11/09/2022] Open
Abstract
Environmental enteric dysfunction is associated with malnutrition as well as infant growth stunting and has been classically defined by villous blunting, decreased crypt-to-villus ratio, and inflammation in the small intestine. Here, we characterized environmental enteric dysfunction among infant rhesus macaques that are naturally exposed to enteric pathogens commonly linked to human growth stunting. Remarkably, despite villous atrophy and histological abnormalities observed in the small intestine, poor growth trajectories and low serum tryptophan levels were correlated with increased histopathology in the large intestine. This work provides insight into the mechanisms underlying this disease and indicates that the large intestine may be an important target for therapeutic intervention. Environmental enteric dysfunction (EED), a subclinical disorder of intestinal function, is associated with malnutrition, infant growth stunting and pathologies in the small intestine. Here the authors report that infant rhesus macaques that are naturally exposed to enteric pathogens commonly linked to human growth stunting present with EED and growth faltering that associates with large intestine pathologies.
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Affiliation(s)
- Sara M Hendrickson
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, 97006, USA
| | - Archana Thomas
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, 97006, USA
| | - Kamm Prongay
- Division of Comparative Medicine, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, USA
| | - Andrew J Haertel
- Division of Comparative Medicine, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, USA
| | - Laura M Garzel
- California National Primate Research Center, University of California, Davis, Davis, CA, USA
| | - Leanne Gill
- California National Primate Research Center, University of California, Davis, Davis, CA, USA
| | - Tasha Barr
- Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, CA, USA
| | - Nicholas S Rhoades
- Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, CA, USA
| | - Rachel Reader
- California National Primate Research Center, University of California, Davis, Davis, CA, USA
| | - Mark Galan
- Department of Pathology and Laboratory Medicine, Rutgers, New Jersey Medical School, Newark, NJ, USA
| | - Julie M Carroll
- Division of Cardiometabolic Health and Division of Reproductive and Developmental Science, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, 97006, USA
| | - Charles T Roberts
- Division of Cardiometabolic Health and Division of Reproductive and Developmental Science, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, 97006, USA
| | - Lina Gao
- Biostatistics and Bioinformatics Core, Oregon National Primate Research Center, and Biostatistics Shared Resource, Knight Cancer Institute, Portland, OR, 97239, USA
| | - Ian J Amanna
- Najít Technologies, Inc., Beaverton, OR, 97006, USA
| | - Ilhem Messaoudi
- Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, CA, USA
| | - Mark K Slifka
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, 97006, USA.
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11
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Wallenborn JT, Vonaesch P. OUP accepted manuscript. Gastroenterol Rep (Oxf) 2022; 10:goac010. [PMID: 35419206 PMCID: PMC8996373 DOI: 10.1093/gastro/goac010] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/10/2021] [Accepted: 02/16/2022] [Indexed: 11/15/2022] Open
Abstract
The intestinal microbiota plays a crucial role in health and changes in its composition are linked with major global human diseases. Fully understanding what shapes the human intestinal microbiota composition and knowing ways of modulating the composition are critical for promotion of life-course health, combating diseases, and reducing global health disparities. We aim to provide a foundation for understanding what shapes the human intestinal microbiota on an individual and global scale, and how interventions could utilize this information to promote life-course health and reduce global health disparities. We briefly review experiences within the first 1,000 days of life and how long-term exposures to environmental elements or geographic specific cultures have lasting impacts on the intestinal microbiota. We also discuss major public health threats linked to the intestinal microbiota, including antimicrobial resistance and disappearing microbial diversity due to globalization. In order to promote global health, we argue that the interplay of the larger ecosystem with intestinal microbiota research should be utilized for future research and urge for global efforts to conserve microbial diversity.
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Affiliation(s)
- Jordyn T Wallenborn
- Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Pascale Vonaesch
- Department of Fundamental Microbiology, University of Lausanne, Bâtiment Biophore Campus UNIL-Sorge, Lausanne, Switzerland
- Corresponding author. Department of Fundamental Microbiology, University of Lausanne, 1015 Lausanne, Switzerland. Tel: +41-21-692-5600;
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12
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Turesky TK, Shama T, Kakon SH, Haque R, Islam N, Someshwar A, Gagoski B, Petri WA, Nelson CA, Gaab N. Brain morphometry and diminished physical growth in Bangladeshi children growing up in extreme poverty: A longitudinal study. Dev Cogn Neurosci 2021; 52:101029. [PMID: 34801857 PMCID: PMC8605388 DOI: 10.1016/j.dcn.2021.101029] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 09/14/2021] [Accepted: 10/24/2021] [Indexed: 11/25/2022] Open
Abstract
Diminished physical growth is a common marker of malnutrition and it affects approximately 200 million children worldwide. Despite its importance and prevalence, it is not clear whether diminished growth relates to brain development and general cognitive ability. Further, diminished growth is more common in areas of extreme poverty, raising the possibility that it may mediate previously shown links between socioeconomic status (SES) and brain structure. To address these gaps, 79 children growing up in an extremely poor, urban area of Bangladesh underwent MRI at age six years. Structural brain images were submitted to Mindboggle software, a Docker-compliant and high-reproducibility tool for tissue segmentation and regional estimations of volume, surface area, cortical thickness, sulcal depth, and mean curvature. Diminished growth predicted brain morphometry and mediated the link between SES and brain morphometry most consistently for subcortical and white matter subcortical volumes. Meanwhile, brain volume in left pallidum and right ventral diencephalon mediated the relationship between diminished growth and full-scale IQ. These findings offer malnutrition as one possible pathway through which SES affects brain development and general cognitive ability in areas of extreme poverty.
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Affiliation(s)
- Ted K Turesky
- Laboratories of Cognitive Neuroscience, Division of Developmental Medicine, Department of Medicine, Boston Children's Hospital, Boston, MA, United States; Harvard Graduate School of Education, Cambridge, MA, United States; Harvard Medical School, Boston, MA, United States.
| | - Talat Shama
- The International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | | | - Rashidul Haque
- The International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Nazrul Islam
- National Institute of Neuroscience and Hospital, Dhaka, Bangladesh
| | - Amala Someshwar
- Laboratories of Cognitive Neuroscience, Division of Developmental Medicine, Department of Medicine, Boston Children's Hospital, Boston, MA, United States
| | - Borjan Gagoski
- Harvard Graduate School of Education, Cambridge, MA, United States; Fetal-Neonatal Neuroimaging and Development Science Center, Boston Children's Hospital, Boston, MA, United States
| | - William A Petri
- Division of Infectious Diseases and International Health, Department of Medicine, School of Medicine, University of Virginia, Charlottesville, VA, United States
| | - Charles A Nelson
- Laboratories of Cognitive Neuroscience, Division of Developmental Medicine, Department of Medicine, Boston Children's Hospital, Boston, MA, United States; Harvard Graduate School of Education, Cambridge, MA, United States; Harvard Medical School, Boston, MA, United States
| | - Nadine Gaab
- Laboratories of Cognitive Neuroscience, Division of Developmental Medicine, Department of Medicine, Boston Children's Hospital, Boston, MA, United States; Harvard Graduate School of Education, Cambridge, MA, United States; Harvard Medical School, Boston, MA, United States
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13
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Tamana SK, Tun HM, Konya T, Chari RS, Field CJ, Guttman DS, Becker AB, Moraes TJ, Turvey SE, Subbarao P, Sears MR, Pei J, Scott JA, Mandhane PJ, Kozyrskyj AL. Bacteroides-dominant gut microbiome of late infancy is associated with enhanced neurodevelopment. Gut Microbes 2021; 13:1-17. [PMID: 34132157 PMCID: PMC8210878 DOI: 10.1080/19490976.2021.1930875] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Dysbiosis of gut microbiota has been retrospectively linked to autism spectrum disorders but the temporal association between gut microbiota and early neurodevelopment in healthy infants is largely unknown. We undertook this study to determine associations between gut microbiota at two critical periods during infancy and neurodevelopment in a general population birth cohort.Here, we analyzed data from 405 infants (199 females) from the CHILD (Canadian Healthy Infant Longitudinal Development) Cohort Study. Neurodevelopmental outcomes were objectively assessed using the Bayley Scale of Infant Development (BSID-III) at 1 and 2 years of age. Microbiota profiling with 16S rRNA gene sequencing was conducted on fecal samples obtained at a mean age of 4 and 12 months.Using clustering methods, we identified three groups of infants based on relative abundance of gut microbiota at 12 months: Proteobacteria-dominant cluster (22.4% higher abundance at 12 months), Firmicutes-dominant cluster (46.0% higher abundance at 12 months) and Bacteroidetes-dominant cluster (31.6% higher abundance at 12 months). Relative to the Proteobacteria-dominant cluster, the Bacteroidetes-dominant cluster was associated with higher scores for cognitive (4.8 points; FDRp = .02), language (4.2 points; FDRp≤0.001), and motor (3.1 points; FDRp = .03) development at age 2 in models adjusted for covariates. When stratified by sex, only male infants with a Bacteroidetes-dominant microbiota had more favorable cognitive (5.9 points, FDRp = .06) and language (7.9 points; FDRp≤0.001) development. Genus Bacteroides abundance in gut microbiota was positively correlated with cognitive and language scores at age 2. Fully adjusted linear mixed model analysis revealed a positive association between Bacteroidetes-dominant cluster and change in cognitive and language performance from 1 to 2 years, predominantly among males. No associations were evident between 4-month microbiota clusters and BSID-II scores. Noteworthy is that enhanced sphingolipid synthesis and metabolism, and antagonism or competition between Bacteroides and Streptococcus were characteristic of a Bacteroidetes-dominant gut microbiota.This study found strong evidence of positive associations between Bacteroidetes gut microbiota in late infancy and subsequent neurodevelopment, most prominently among males but not females.
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Affiliation(s)
| | - Hein M. Tun
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada,HKU-Pasteur Research Pole, School of Public Health, Li Ka Shing Faculty of Medicine, University of Hong Kong, Hong Kong SAR, China
| | - Theodore Konya
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
| | - Radha S. Chari
- Department of Obstetrics and Gynecology, University of Alberta, Edmonton, AB, Canada
| | - Catherine J. Field
- Department of Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - David S. Guttman
- Centre for the Analysis of Genome Evolution and Function, University of Toronto, Toronto, ON, Canada
| | - Allan B. Becker
- Department of Pediatrics & Child Health, Children’s Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, MB, Canada
| | - Theo J. Moraes
- Department of Pediatrics, Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Stuart E. Turvey
- Department of Pediatrics, Child & Family Research Institute, BC Children’s Hospital, University of British Columbia, Vancouver, BC, Canada
| | - Padmaja Subbarao
- Department of Pediatrics, Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Malcolm R. Sears
- Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Jacqueline Pei
- Department of Educational Psychology, University of Alberta, Edmonton, AB, Canada
| | - James A. Scott
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
| | - Piush J. Mandhane
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada
| | - Anita L. Kozyrskyj
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada,CONTACT Anita L. Kozyrskyj Department of Pediatrics, University of Alberta, 3-527 Edmonton Clinic Health Academy, 11405-87th Ave, Edmonton, ABT6G 1C9, Canada
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14
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Zhao X, Setchell KDR, Huang R, Mallawaarachchi I, Ehsan L, Dobrzykowski III E, Zhao J, Syed S, Ma JZ, Iqbal NT, Iqbal J, Sadiq K, Ahmed S, Haberman Y, Denson LA, Ali SA, Moore SR. Bile Acid Profiling Reveals Distinct Signatures in Undernourished Children with Environmental Enteric Dysfunction. J Nutr 2021; 151:3689-3700. [PMID: 34718665 PMCID: PMC8643614 DOI: 10.1093/jn/nxab321] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/20/2021] [Accepted: 08/30/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Intestinal inflammation and malabsorption in environmental enteric dysfunction (EED) are associated with early childhood growth faltering in impoverished settings worldwide. OBJECTIVES The goal of this study was to identify candidate biomarkers associated with inflammation, EED histology, and as predictors of later growth outcomes by focusing on the liver-gut axis by investigating the bile acid metabolome. METHODS Undernourished rural Pakistani infants (n = 365) with weight-for-height Z score (WHZ) < -2 were followed up to the age of 24 mo and monitored for growth, infections, and EED. Well-nourished local children (n = 51) were controls, based on consistent WHZ > 0 and height-for-age Z score (HAZ) > -1 on 2 consecutive visits at 3 and 6 mo. Serum bile acid (sBA) profiles were measured by tandem MS at the ages of 3-6 and 9 mo and before nutritional intervention. Biopsies and duodenal aspirates were obtained following upper gastrointestinal endoscopy from a subset of children (n = 63) that responded poorly to nutritional intervention. BA composition in paired plasma and duodenal aspirates was compared based on the severity of EED histopathological scores and correlated to clinical and growth outcomes. RESULTS Remarkably, >70% of undernourished Pakistani infants displayed elevated sBA concentrations consistent with subclinical cholestasis. Serum glycocholic acid (GCA) correlated with linear growth faltering (HAZ, r = -0.252 and -0.295 at the age of 3-6 and 9 mo, respectively, P <0.001) and biomarkers of inflammation. The proportion of GCA positively correlated with EED severity for both plasma (rs = 0.324 P = 0.02) and duodenal aspirates (rs = 0.307 P = 0.06) in children with refractory wasting that underwent endoscopy, and the proportion of secondary BA was low in both undernourished and EED children. CONCLUSIONS Dysregulated bile acid metabolism is associated with growth faltering and EED severity in undernourished children. Restoration of intestinal BA homeostasis may offer a novel therapeutic target for undernutrition in children with EED. This trial was registered at clinicaltrials.gov as NCT03588013.
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Affiliation(s)
- Xueheng Zhao
- Division of Pathology & Laboratory Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | | | - Rong Huang
- Division of Pathology & Laboratory Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | | | - Lubaina Ehsan
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Virginia, Charlottesville, VA, USA
| | - Edward Dobrzykowski III
- Division of Pathology & Laboratory Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA,Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Junfang Zhao
- Division of Pathology & Laboratory Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Sana Syed
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Virginia, Charlottesville, VA, USA,Departments of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | - Jennie Z Ma
- Department of Public Health Sciences, University of Virginia, Charlottesville, VA, USA
| | - Najeeha T Iqbal
- Departments of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan,Departments of Biological and Biomedical Sciences, Aga Khan University, Karachi, Pakistan
| | - Junaid Iqbal
- Departments of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan,Departments of Biological and Biomedical Sciences, Aga Khan University, Karachi, Pakistan
| | - Kamran Sadiq
- Departments of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | - Sheraz Ahmed
- Departments of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | - Yael Haberman
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA,Department of Pediatrics, Sheba Medical Center, Tel-HaShomer, affiliated with the Tel-Aviv University, Israel,Division of Gastroenterology, Hepatology, and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Lee A Denson
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA,Division of Gastroenterology, Hepatology, and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Syed Asad Ali
- Departments of Pediatrics and Child Health, Aga Khan University, Karachi, Pakistan
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15
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Parikh P, Semba R, Manary M, Swaminathan S, Udomkesmalee E, Bos R, Poh BK, Rojroongwasinkul N, Geurts J, Sekartini R, Nga TT. Animal source foods, rich in essential amino acids, are important for linear growth and development of young children in low- and middle-income countries. MATERNAL AND CHILD NUTRITION 2021; 18:e13264. [PMID: 34467645 PMCID: PMC8710096 DOI: 10.1111/mcn.13264] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 07/02/2021] [Accepted: 08/02/2021] [Indexed: 11/28/2022]
Abstract
Growth faltering under 5 years of age is unacceptably high worldwide, and even more children, while not stunted, fail to reach their growth potential. The time between conception and 2 years of age is critical for development. The period from 6 to 23 months, when complementary foods are introduced, coincides with a time when growth faltering and delayed neurocognitive developments are most common. Fortunately, this is also the period when diet exercises its greatest influence. Growing up in an adverse environment, with a deficient diet, as typically seen in low‐ and middle‐income countries (LMICs), hampers growth and development of children and prevents them from realising their full developmental and economic future potential. Sufficient nutrient availability and utilisation are paramount to a child's growth and development trajectory, especially in the period after breastfeeding. This review highlights the importance of essential amino acids (EAAs) in early life for linear growth and, likely, neurocognitive development. The paper further discusses signalling through mammalian target of rapamycin complex 1 (mTORC1) as one of the main amino acid (AA)‐sensing hubs and the master regulator of both growth and neurocognitive development. Children in LMICs, despite consuming sufficient total protein, do not meet their EAA requirements due to poor diet diversity and low‐quality dietary protein. AA deficiencies in early life can cause reductions in linear growth and cognition. Ensuring AA adequacy in diets, particularly through inclusion of nutrient‐dense animal source foods from 6 to 23 months, is strongly encouraged in LMICs in order to compensate for less than optimal growth during complementary feeding.
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Affiliation(s)
| | - Richard Semba
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Mark Manary
- Department of Paediatrics, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Sumathi Swaminathan
- St John's Research Institute, St John's National Academy of Health Sciences, Bangalore, Karnataka, India
| | | | - Rolf Bos
- FrieslandCampina, Amersfoort, The Netherlands
| | - Bee Koon Poh
- Nutritional Sciences Programme & Centre for Community Health, Faculty of Health Sciences, University Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | | | - Jan Geurts
- FrieslandCampina, Amersfoort, The Netherlands
| | - Rini Sekartini
- Faculty of Medicine, Department of Pediatrics, University of Indonesia and Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Tran Thuy Nga
- Department of Occupational and School Nutrition, National Institute of Nutrition (NIN), Hanoi, Vietnam
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16
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Bragg MG, Prado EL, Stewart CP. Choline and docosahexaenoic acid during the first 1000 days and children's health and development in low- and middle-income countries. Nutr Rev 2021; 80:656-676. [PMID: 34338760 PMCID: PMC8907485 DOI: 10.1093/nutrit/nuab050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Choline and DHA are nutrients that, when provided during the first 1000 days from conception to age 2 years, may have beneficial effects on child neurodevelopment as well as related health factors, including birth outcomes and child growth, morbidity, and inflammation. Because these nutrients are found mainly in animal-source foods, they may be lacking in the diets of pregnant and lactating women and young children in low- and middle-income countries, potentially putting children at risk for suboptimal development and health. Prior reviews of these nutrients have mainly focused on studies from high-income countries. Here, a narrative review is presented of studies describing the pre- and postnatal roles of choline, docosahexaenoic acid, and a combination of the 2 nutrients on child neurodevelopment, birth outcomes, growth, morbidity, and inflammation in low- and middle-income countries. More studies are needed to understand the specific, long-term effects of perinatal choline and docosahexaenoic acid intake in various contexts.
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Affiliation(s)
- Megan G Bragg
- M.G. Bragg, E.L. Prado, and C.P. Stewart are with the Institute for Global Nutrition, University of California Davis, Davis, California, United States
| | - Elizabeth L Prado
- M.G. Bragg, E.L. Prado, and C.P. Stewart are with the Institute for Global Nutrition, University of California Davis, Davis, California, United States
| | - Christine P Stewart
- M.G. Bragg, E.L. Prado, and C.P. Stewart are with the Institute for Global Nutrition, University of California Davis, Davis, California, United States
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17
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Human Brain Lipidomics: Utilities of Chloride Adducts in Flow Injection Analysis. Life (Basel) 2021; 11:life11050403. [PMID: 33924945 PMCID: PMC8145723 DOI: 10.3390/life11050403] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/25/2021] [Accepted: 04/26/2021] [Indexed: 11/16/2022] Open
Abstract
Ceramides have been implicated in a number of disease processes. However, current means of evaluation with flow infusion analysis (FIA) have been limited primarily due to poor sensitivity within our high-resolution mass spectrometry lipidomics analytical platform. To circumvent this deficiency, we investigated the potential of chloride adducts as an alternative method to improve sensitivity with electrospray ionization. Chloride adducts of ceramides and ceramide subfamilies provided 2- to 50-fold increases in sensitivity both with analytical standards and biological samples. Chloride adducts of a number of other lipids with reactive hydroxy groups were also enhanced. For example, monogalactosyl diacylglycerols (MGDGs), extracted from frontal lobe cortical gray and subcortical white matter of cognitively intact subjects, were not detected as ammonium adducts but were readily detected as chloride adducts. Hydroxy lipids demonstrate a high level of specificity in that phosphoglycerols and phosphoinositols do not form chloride adducts. In the case of choline glycerophospholipids, the fatty acid substituents of these lipids could be monitored by MS2 of the chloride adducts. Monitoring the chloride adducts of a number of key lipids offers enhanced sensitivity and specificity with FIA. In the case of glycerophosphocholines, the chloride adducts also allow determination of fatty acid substituents. The chloride adducts of lipids possessing electrophilic hydrogens of hydroxyl groups provide significant increases in sensitivity. In the case of glycerophosphocholines, chloride attachment to the quaternary ammonium group generates a dominant anion, which provides the identities of the fatty acid substituents under MS2 conditions.
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18
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Gazi MA, Das S, Siddique MA, Alam MA, Fahim SM, Hasan MM, Hossaini F, Kabir MM, Noor Z, Haque R, Mahfuz M, Ahmed T. Plasma Kynurenine to Tryptophan Ratio Is Negatively Associated with Linear Growth of Children Living in a Slum of Bangladesh: Results from a Community-Based Intervention Study. Am J Trop Med Hyg 2020; 104:766-773. [PMID: 33236707 PMCID: PMC7866305 DOI: 10.4269/ajtmh.20-0049] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Accepted: 09/26/2020] [Indexed: 12/13/2022] Open
Abstract
Chronic exposure to infectious agents results in environmental enteric dysfunction-a significant contributor to childhood stunting. Low plasma tryptophan (TRP), increased kynurenine (KYN), and KYN-TRP (KT) ratio are associated with infections and chronic immune activation. We postulated that both these conditions are interlinked, and therefore aimed to identify the association between KT ratio and the linear growth of Bangladeshi children. A total of 480 stunted and at risk of being stunted children aged 12-18 months were enrolled and provided nutrition intervention for 90 days. Plasma samples were assessed using liquid chromatography tandem mass spectrometry to measure TRP and KYN concentrations. Multivariable linear regression with generalized estimating equations was applied to analyze association between the KT ratio and linear growth. Tryptophan, KYN, and KT ratio were significantly higher in stunted children than in children at risk of being stunted both at baseline and at the end of nutrition intervention. Following intervention, the median (interquartile range [IQR]) KYN concentration was significantly reduced from 4.6 (3.6, 5.4) µmol/L to 3.9 (0.3, 7.6) µmol/L, and median (IQR) KT ratio decreased from 104 (80.9, 131) to 92.8 (6.6, 247) in stunted children. We also found KT ratio to be negatively associated (coefficient = -0.7; 95% CI = -1.13, -0.26; P-value = 0.002) with linear growth. In addition, KYN and KT ratio were positively correlated with fecal neopterin and plasma C-reactive protein, whereas TRP was negatively correlated with both of these biomarkers and alpha-1-acid glycoprotein. Our findings imply that KT ratio is associated in the pathophysiology of stunting as well as with biomarkers of inflammation in Bangladeshi children.
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Affiliation(s)
- Md. Amran Gazi
- Nutrition and Clinical Services Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Subhasish Das
- Nutrition and Clinical Services Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Md. Abdullah Siddique
- Emerging Infection and Parasitology Laboratory, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Md. Ashraful Alam
- Nutrition and Clinical Services Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Shah Mohammad Fahim
- Nutrition and Clinical Services Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Md. Mehedi Hasan
- Nutrition and Clinical Services Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Farzana Hossaini
- Nutrition and Clinical Services Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Md. Mamun Kabir
- Emerging Infection and Parasitology Laboratory, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Zannatun Noor
- Emerging Infection and Parasitology Laboratory, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Rashidul Haque
- Emerging Infection and Parasitology Laboratory, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Mustafa Mahfuz
- Nutrition and Clinical Services Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Tahmeed Ahmed
- Nutrition and Clinical Services Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
- James P. Grant School of Public Health, BRAC University, Dhaka, Bangladesh
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19
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Intervention and Mechanisms of Alanyl-glutamine for Inflammation, Nutrition, and Enteropathy: A Randomized Controlled Trial. J Pediatr Gastroenterol Nutr 2020; 71:393-400. [PMID: 32826717 PMCID: PMC8576339 DOI: 10.1097/mpg.0000000000002834] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
OBJECTIVE Determine the minimum dosage of alanyl-glutamine (Ala-Gln) required to improve gut integrity and growth in children at risk of environmental enteropathy (EE). METHODS This was a double-blinded randomized placebo-controlled dose-response trial. We enrolled 140 children residing in a low-income community in Fortaleza, Brazil. Participants were 2 to 60 months old and had weight-for-age (WAZ), height-for-age (HAZ), or weight-for-height (WHZ) z-scores less than -1. We randomized children to 10 days of nutritional supplementation: Ala-Gln at 3 g/day, Ala-Gln at 6 g/day, Ala-Gln at 12 g/day, or an isonitrogenous dose of glycine (Gly) placebo at 12.5 g/day. Our primary outcome was urinary lactulose-mannitol excretion testing. Secondary outcomes were anthropometry, fecal markers of inflammation, urine metabolic profiles, and malabsorption (spot fecal energy). RESULTS Of 140 children, 103 completed 120 days of follow-up (24% dropout). In the group receiving the highest dose of Ala-Gln, we detected a modest improvement in urinary lactulose excretion from 0.19% on day 1 to 0.17% on day 10 (P = 0.05). We observed significant but transient improvements in WHZ at day 10 in 2 Ala-Gln groups, and in WHZ and WAZ in all Ala-Gln groups at day 30. We detected no effects on fecal inflammatory markers, diarrheal morbidity, or urine metabolic profiles; but did observe modest reductions in fecal energy and fecal lactoferrin in participants receiving Ala-Gln. CONCLUSIONS Intermediate dose Ala-Gln promotes short-term improvement in gut integrity and ponderal growth in children at risk of EE. Lower doses produced improvements in ponderal growth in the absence of enhanced gut integrity.
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20
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Abstract
Short bowel syndrome (SBS) is a malabsorptive state that may occur either after surgical bowel resection or as the result of congenital bowel anomalies. SBS can incur significant morbidity and mortality including intestinal failure, cholestasis, sepsis, and death. For patients with SBS, management involves a multidisciplinary approach that begins with neonatology, pediatric surgery, nutritionists, pharmacists, and nurses in the NICU and also includes the transition to an intestinal rehabilitation program. The aim of this review is to provide the neonatologist with an overview of the common causes of neonatal SBS, anticipated nutritional deficiencies, complications associated with SBS, and the surgical and medical management of SBS to assist in counseling affected families.
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Affiliation(s)
| | - Melissa E Danko
- Pediatric Surgery, Monroe Carell Jr Children's Hospital at Vanderbilt, Nashville, TN
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21
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Turesky T, Xie W, Kumar S, Sliva DD, Gagoski B, Vaughn J, Zöllei L, Haque R, Kakon SH, Islam N, Petri WA, Nelson CA, Gaab N. Relating anthropometric indicators to brain structure in 2-month-old Bangladeshi infants growing up in poverty: A pilot study. Neuroimage 2020; 210:116540. [PMID: 31945509 PMCID: PMC7068701 DOI: 10.1016/j.neuroimage.2020.116540] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 11/06/2019] [Accepted: 01/10/2020] [Indexed: 01/03/2023] Open
Abstract
Anthropometric indicators, including stunting, underweight, and wasting, have previously been associated with poor neurocognitive outcomes. This link may exist because malnutrition and infection, which are known to affect height and weight, also impact brain structure according to animal models. However, a relationship between anthropometric indicators and brain structural measures has not been tested yet, perhaps because stunting, underweight, and wasting are uncommon in higher-resource settings. Further, with diminished anthropometric growth prevalent in low-resource settings, where biological and psychosocial hazards are most severe, one might expect additional links between measures of poverty, anthropometry, and brain structure. To begin to examine these relationships, we conducted an MRI study in 2-3-month-old infants growing up in the extremely impoverished urban setting of Dhaka, Bangladesh. The sample size was relatively small because the challenges of investigating infant brain structure in a low-resource setting needed to be realized and resolved before introducing a larger cohort. Initially, fifty-four infants underwent T1 sequences using 3T MRI, and resulting structural images were segmented into gray and white matter maps, which were carefully evaluated for accurate tissue labeling by a pediatric neuroradiologist. Gray and white matter volumes from 29 infants (79 ± 10 days-of-age; F/M = 12/17), whose segmentations were of relatively high quality, were submitted to semi-partial correlation analyses with stunting, underweight, and wasting, which were measured using height-for-age (HAZ), weight-for-age (WAZ), and weight-for-height (WHZ) scores. Positive semi-partial correlations (after adjusting for chronological age and sex and correcting for multiple comparisons) were observed between white matter volume and HAZ and WAZ; however, WHZ was not correlated with any measure of brain volume. No associations were observed between income-to-needs or maternal education and brain volumetric measures, suggesting that measures of poverty were not associated with total brain tissue volume in this sample. Overall, these results provide the first link between diminished anthropometric growth and white matter volume in infancy. Challenges of conducting a developmental neuroimaging study in a low-resource country are also described.
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Affiliation(s)
- Ted Turesky
- Laboratories of Cognitive Neuroscience, Division of Developmental Medicine, Department of Medicine, Boston Children's Hospital, Boston, MA, United States; Harvard Medical School, Boston, MA, United States.
| | - Wanze Xie
- Laboratories of Cognitive Neuroscience, Division of Developmental Medicine, Department of Medicine, Boston Children's Hospital, Boston, MA, United States; Harvard Medical School, Boston, MA, United States
| | - Swapna Kumar
- Laboratories of Cognitive Neuroscience, Division of Developmental Medicine, Department of Medicine, Boston Children's Hospital, Boston, MA, United States
| | - Danielle D Sliva
- Department of Neuroscience, Brown University, Providence, RI, United States
| | - Borjan Gagoski
- Department of Radiology, Harvard Medical School, Boston, MA, United States; Fetal Neonatal Neuroimaging and Developmental Science Center, Boston Children's Hospital, Boston, MA, United States
| | - Jennifer Vaughn
- Department of Radiology, Harvard Medical School, Boston, MA, United States
| | - Lilla Zöllei
- A.A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Boston, MA, United States
| | - Rashidul Haque
- The International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | | | - Nazrul Islam
- National Institute of Neuroscience and Hospital, Dhaka, Bangladesh
| | - William A Petri
- Division of Infectious Diseases and International Health, Department of Medicine, School of Medicine, University of Virginia, Charlottesville, VA, United States
| | - Charles A Nelson
- Laboratories of Cognitive Neuroscience, Division of Developmental Medicine, Department of Medicine, Boston Children's Hospital, Boston, MA, United States; Harvard Medical School, Boston, MA, United States; Harvard Graduate School of Education, Cambridge, MA, United States
| | - Nadine Gaab
- Laboratories of Cognitive Neuroscience, Division of Developmental Medicine, Department of Medicine, Boston Children's Hospital, Boston, MA, United States; Harvard Medical School, Boston, MA, United States
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22
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Colston JM, Peñataro Yori P, Moulton LH, Paredes Olortegui M, Kosek PS, Rengifo Trigoso D, Siguas Salas M, Schiaffino F, François R, Fardus-Reid F, Swann JR, Kosek MN. Penalized regression models to select biomarkers of environmental enteric dysfunction associated with linear growth acquisition in a Peruvian birth cohort. PLoS Negl Trop Dis 2019; 13:e0007851. [PMID: 31730639 PMCID: PMC6881068 DOI: 10.1371/journal.pntd.0007851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 11/27/2019] [Accepted: 10/16/2019] [Indexed: 12/02/2022] Open
Abstract
Environmental enteric dysfunction (EED) is associated with chronic undernutrition. Efforts to identify minimally invasive biomarkers of EED reveal an expanding number of candidate analytes. An analytic strategy is reported to select among candidate biomarkers and systematically express the strength of each marker’s association with linear growth in infancy and early childhood. 180 analytes were quantified in fecal, urine and plasma samples taken at 7, 15 and 24 months of age from 258 subjects in a birth cohort in Peru. Treating the subjects’ length-for-age Z-score (LAZ-score) over a 2-month lag as the outcome, penalized linear regression models with different shrinkage methods were fitted to determine the best-fitting subset. These were then included with covariates in linear regression models to obtain estimates of each biomarker’s adjusted effect on growth. Transferrin had the largest and most statistically significant adjusted effect on short-term linear growth as measured by LAZ-score–a coefficient value of 0.50 (0.24, 0.75) for each log2 increase in plasma transferrin concentration. Other biomarkers with large effect size estimates included adiponectin, arginine, growth hormone, proline and serum amyloid P-component. The selected subset explained up to 23.0% of the variability in LAZ-score. Penalized regression modeling approaches can be used to select subsets from large panels of candidate biomarkers of EED. There is a need to systematically express the strength of association of biomarkers with linear growth or other outcomes to compare results across studies. Childhood undernutrition is widespread throughout the world and has severe, long-lasting health impacts. Substances measured in blood, urine and stool could be used as biomarkers to identify children undergoing growth failure before these impacts occur. However, it is not yet known which of the many markers that can be identified are accurate and clinically useful predictors of poor growth in infants and children. This study used a large number of candidate biomarkers of immune activation, metabolism and hormones and applied statistical methods to narrow them down from 110 different substances, to the 36 best predictors of growth in 258 Peruvian infants. It also estimated how large the effect of each of these markers was on height two months later. The biomarker with the largest effect was transferrin, a glycoprotein that can be measured in blood samples. 15-month old children with elevated transferrin were around two thirds of a centimeter taller on average at 17 months than those with low levels. Transferrin and other proteins, glycoproteins, hormones and antibodies that this study identified, can be measured easily and affordably in standard laboratories making them feasible to be used broadly as prognostic markers as part of child health and nutrition programs in under-resourced settings.
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Affiliation(s)
- Josh M. Colston
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America
| | - Pablo Peñataro Yori
- Division of Infectious Diseases and International Health, University of Virginia School of Medicine, Charlottesville, Virginia, United States of America
| | - Lawrence H. Moulton
- Department of International Health, Johns Hopkins School of Public Health, Baltimore, Maryland, United States of America
| | | | - Peter S. Kosek
- Oregon Neurosurgery, Eugene, Oregon, United States of America
| | | | | | - Francesca Schiaffino
- Department of International Health, Johns Hopkins School of Public Health, Baltimore, Maryland, United States of America
| | - Ruthly François
- Department of International Health, Johns Hopkins School of Public Health, Baltimore, Maryland, United States of America
| | - Fahmina Fardus-Reid
- Division of Integrative Systems Medicine and Digestive Diseases, Department of Surgery and Cancer, Imperial College London, London, United Kingdom
| | - Jonathan R. Swann
- Division of Integrative Systems Medicine and Digestive Diseases, Department of Surgery and Cancer, Imperial College London, London, United Kingdom
| | - Margaret N. Kosek
- Division of Infectious Diseases and International Health, University of Virginia School of Medicine, Charlottesville, Virginia, United States of America
- * E-mail:
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23
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Mahmud I, Kabir M, Haque R, Garrett TJ. Decoding the Metabolome and Lipidome of Child Malnutrition by Mass Spectrometric Techniques: Present Status and Future Perspectives. Anal Chem 2019; 91:14784-14791. [PMID: 31682425 DOI: 10.1021/acs.analchem.9b03338] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Child malnutrition (CM) is a global public health problem. It contributes to poor health in one in four children under five years worldwide and causes serious health problems in children, including stunted, wasted, and overweight growth. These serious public health issues lead to a higher chance of living in poverty in adulthood. Malnutrition is related with reduced economic productivity and increases the serious national and international burden. Currently, there is no meaningful therapeutic intervention of CM, and the use of different therapeutic foods has shown poor outcomes among supplemented malnourished children. The role of metabolites and lipids has been extensively recognized as early determinants of child health, but their contribution in CM and its pathobiology are poorly understood. This perspective provides a most recent update on these aspects. After briefly introducing the disciplines of metabolomics and lipidomics, we describe a mass spectrometry-based metabolic workflow for analysis of both metabolites and lipids and summarize several recent applications of metabolomics and lipidomics in CM. Finally, we discuss the future directions of the field toward the development of meaningful interventions for CM through metabolomics and lipidomics advances.
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Affiliation(s)
- Iqbal Mahmud
- Department of Pathology, Immunology, and Laboratory Medicine , University of Florida, College of Medicine , Gainesville , Florida 32608 , United States.,Southeast Center for Integrated Metabolomics (SECIM), Clinical and Translational Science Institute , University of Florida , Gainesville , Florida 32608 , United States
| | - Mamun Kabir
- Emerging Infections and Parasitology Laboratory, Infectious Disease Division , International Centre for Diarrheal Disease Research , Dhaka 1213 , Bangladesh
| | - Rashidul Haque
- Emerging Infections and Parasitology Laboratory, Infectious Disease Division , International Centre for Diarrheal Disease Research , Dhaka 1213 , Bangladesh
| | - Timothy J Garrett
- Department of Pathology, Immunology, and Laboratory Medicine , University of Florida, College of Medicine , Gainesville , Florida 32608 , United States.,Southeast Center for Integrated Metabolomics (SECIM), Clinical and Translational Science Institute , University of Florida , Gainesville , Florida 32608 , United States
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24
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van den Heuvel M. Metabolomics, stunting and neurodevelopment. EBioMedicine 2019; 44:10-11. [PMID: 31176679 PMCID: PMC6606741 DOI: 10.1016/j.ebiom.2019.05.067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 05/31/2019] [Indexed: 02/04/2023] Open
Affiliation(s)
- Meta van den Heuvel
- Divsision of Pediatrics, Hospital for Sick children, Toronto, Canada; Department of Pediatrics, University of Toronto, Toronto, Canada; Centre for Global Health, Hospital for Sick Children, Toronto, Canada.
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