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Published in: Trials 1/2017

Open Access 01-12-2017 | Study protocol

Lactoferrin and lysozyme to reduce environmental enteric dysfunction and stunting in Malawian children: study protocol for a randomized controlled trial

Authors: William D. Cheng, Karl J. Wold, Nicole S. Benzoni, Chrissie Thakwalakwa, Kenneth M. Maleta, Mark J. Manary, Indi Trehan

Published in: Trials | Issue 1/2017

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Abstract

Background

Chronic childhood malnutrition, as manifested by stunted linear growth, remains a persistent barrier to optimal child growth and societal development. Environmental enteric dysfunction (EED) is a significant underlying factor in the causal pathway to stunting, delayed cognitive development, and ultimately morbidity and mortality. Effective therapies against EED and stunting are lacking and further clinical trials are warranted to effectively identify and operationalize interventions.

Methods/design

A prospective randomized placebo-controlled parallel-group randomized controlled trial will be conducted to determine if a daily supplement of lactoferrin and lysozyme, two important proteins found in breast milk, can decrease the burden of EED and stunting in rural Malawian children aged 12–23 months old. The intervention and control groups will have a sample size of 86 subjects each. All field and laboratory researchers will be blinded to the assigned intervention group, as will the subjects and their caregivers. The percentage of ingested lactulose excreted in the urine (Δ%L) after 4 h will be used as the biomarker for EED and linear growth as the measure of chronic malnutrition (stunting). The primary outcomes of interest will be change in Δ%L from baseline to 8 weeks and to 16 weeks. Intention-to-treat analyses will be used.

Discussion

A rigorous clinical trial design will be used to assess the biologically plausible use of lactoferrin and lysozyme as dietary supplements for children at high risk for EED. If proven effective, these safe proteins may serve to markedly reduce the burden of childhood malnutrition and improve survival.

Trial Registration

Clinicaltrials.gov, NCT02925026. Registered on 4 October 2016.
Appendix
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Literature
1.
go back to reference World Health Organization. World health statistics 2016. Geneva: World Health Organization; 2016. World Health Organization. World health statistics 2016. Geneva: World Health Organization; 2016.
2.
go back to reference Bhutta ZA, Das JK, Rizvi A, Gaffey MF, Walker N, Horton S, et al. Evidence-based interventions for improvement of maternal and child nutrition: what can be done and at what cost? Lancet. 2013;382(9890):452–77.PubMedCrossRef Bhutta ZA, Das JK, Rizvi A, Gaffey MF, Walker N, Horton S, et al. Evidence-based interventions for improvement of maternal and child nutrition: what can be done and at what cost? Lancet. 2013;382(9890):452–77.PubMedCrossRef
4.
go back to reference Trehan I, Kelly P, Shaikh N, Manary MJ. New insights into environmental enteric dysfunction. Arch Dis Child. 2016;101(8):741–4.PubMedCrossRef Trehan I, Kelly P, Shaikh N, Manary MJ. New insights into environmental enteric dysfunction. Arch Dis Child. 2016;101(8):741–4.PubMedCrossRef
5.
go back to reference Watanabe K, Petri Jr WA. Environmental enteropathy: elusive but significant subclinical abnormalities in developing countries. EBioMedicine. 2016;10:25–32.PubMedPubMedCentralCrossRef Watanabe K, Petri Jr WA. Environmental enteropathy: elusive but significant subclinical abnormalities in developing countries. EBioMedicine. 2016;10:25–32.PubMedPubMedCentralCrossRef
6.
go back to reference Keusch GT, Denno DM, Black RE, Duggan C, Guerrant RL, Lavery JV, et al. Environmental enteric dysfunction: pathogenesis, diagnosis, and clinical consequences. Clin Infect Dis. 2014;59 Suppl 4:S207–12.PubMedPubMedCentralCrossRef Keusch GT, Denno DM, Black RE, Duggan C, Guerrant RL, Lavery JV, et al. Environmental enteric dysfunction: pathogenesis, diagnosis, and clinical consequences. Clin Infect Dis. 2014;59 Suppl 4:S207–12.PubMedPubMedCentralCrossRef
7.
go back to reference Kelly P, Besa E, Zyambo K, Louis-Auguste J, Lees J, Banda T, et al. Endomicroscopic and transcriptomic analysis of impaired barrier function and malabsorption in environmental enteropathy. PLoS Negl Trop Dis. 2016;10(4):e0004600.PubMedPubMedCentralCrossRef Kelly P, Besa E, Zyambo K, Louis-Auguste J, Lees J, Banda T, et al. Endomicroscopic and transcriptomic analysis of impaired barrier function and malabsorption in environmental enteropathy. PLoS Negl Trop Dis. 2016;10(4):e0004600.PubMedPubMedCentralCrossRef
8.
go back to reference Trehan I, Shulman RJ, Ou CN, Maleta K, Manary MJ. A randomized, double-blind, placebo-controlled trial of rifaximin, a nonabsorbable antibiotic, in the treatment of tropical enteropathy. Am J Gastroenterol. 2009;104(9):2326–33.PubMedPubMedCentralCrossRef Trehan I, Shulman RJ, Ou CN, Maleta K, Manary MJ. A randomized, double-blind, placebo-controlled trial of rifaximin, a nonabsorbable antibiotic, in the treatment of tropical enteropathy. Am J Gastroenterol. 2009;104(9):2326–33.PubMedPubMedCentralCrossRef
9.
go back to reference Galpin L, Manary MJ, Fleming K, Ou CN, Ashorn P, Shulman RJ. Effect of Lactobacillus GG on intestinal integrity in Malawian children at risk of tropical enteropathy. Am J Clin Nutr. 2005;82(5):1040–5.PubMed Galpin L, Manary MJ, Fleming K, Ou CN, Ashorn P, Shulman RJ. Effect of Lactobacillus GG on intestinal integrity in Malawian children at risk of tropical enteropathy. Am J Clin Nutr. 2005;82(5):1040–5.PubMed
10.
go back to reference Thurnham DI, Northrop-Clewes CA, McCullough FS, Das BS, Lunn PG. Innate immunity, gut integrity, and vitamin a in Gambian and Indian infants. J Infect Dis. 2000;182 Suppl 1:S23–8.PubMedCrossRef Thurnham DI, Northrop-Clewes CA, McCullough FS, Das BS, Lunn PG. Innate immunity, gut integrity, and vitamin a in Gambian and Indian infants. J Infect Dis. 2000;182 Suppl 1:S23–8.PubMedCrossRef
11.
go back to reference Lima NL, Soares AM, Mota RM, Monteiro HS, Guerrant RL, Lima AA. Wasting and intestinal barrier function in children taking alanyl-glutamine-supplemented enteral formula. J Pediatr Gastroenterol Nutr. 2007;44(3):365–74.PubMedCrossRef Lima NL, Soares AM, Mota RM, Monteiro HS, Guerrant RL, Lima AA. Wasting and intestinal barrier function in children taking alanyl-glutamine-supplemented enteral formula. J Pediatr Gastroenterol Nutr. 2007;44(3):365–74.PubMedCrossRef
12.
go back to reference van der Merwe LF, Moore SE, Fulford AJ, Halliday KE, Drammeh S, Young S, et al. Long-chain pufa supplementation in rural African infants: a randomized controlled trial of effects on gut integrity, growth, and cognitive development. Am J Clin Nutr. 2013;97(1):45–57.PubMedCrossRef van der Merwe LF, Moore SE, Fulford AJ, Halliday KE, Drammeh S, Young S, et al. Long-chain pufa supplementation in rural African infants: a randomized controlled trial of effects on gut integrity, growth, and cognitive development. Am J Clin Nutr. 2013;97(1):45–57.PubMedCrossRef
13.
go back to reference Ryan KN, Stephenson KB, Trehan I, Shulman RJ, Thakwalakwa C, Murray E, et al. Zinc or albendazole attenuates the progression of environmental enteropathy: a randomized controlled trial. Clin Gastroenterol Hepatol. 2014;12(9):1507–13.PubMedCrossRef Ryan KN, Stephenson KB, Trehan I, Shulman RJ, Thakwalakwa C, Murray E, et al. Zinc or albendazole attenuates the progression of environmental enteropathy: a randomized controlled trial. Clin Gastroenterol Hepatol. 2014;12(9):1507–13.PubMedCrossRef
14.
go back to reference Smith HE, Ryan KN, Stephenson KB, Westcott C, Thakwalakwa C, Maleta K, et al. Multiple micronutrient supplementation transiently ameliorates environmental enteropathy in Malawian children aged 12–35 months in a randomized controlled clinical trial. J Nutr. 2014;144(12):2059–65.PubMedCrossRef Smith HE, Ryan KN, Stephenson KB, Westcott C, Thakwalakwa C, Maleta K, et al. Multiple micronutrient supplementation transiently ameliorates environmental enteropathy in Malawian children aged 12–35 months in a randomized controlled clinical trial. J Nutr. 2014;144(12):2059–65.PubMedCrossRef
15.
go back to reference Jones KD, Hunten-Kirsch B, Laving AM, Munyi CW, Ngari M, Mikusa J, et al. Mesalazine in the initial management of severely acutely malnourished children with environmental enteric dysfunction: a pilot randomized controlled trial. BMC Med. 2014;12:133.PubMedPubMedCentralCrossRef Jones KD, Hunten-Kirsch B, Laving AM, Munyi CW, Ngari M, Mikusa J, et al. Mesalazine in the initial management of severely acutely malnourished children with environmental enteric dysfunction: a pilot randomized controlled trial. BMC Med. 2014;12:133.PubMedPubMedCentralCrossRef
16.
go back to reference Wang AZ, Shulman RJ, Crocker AH, Thakwalakwa C, Maleta KM, Devaraj S, et al. A combined intervention of zinc, multiple micronutrients, and albendazole does not ameliorate environmental enteric dysfunction or stunting in rural Malawian children in a double-blind randomized controlled trial. J Nutr. 2017;147(1):97–103.PubMedCrossRef Wang AZ, Shulman RJ, Crocker AH, Thakwalakwa C, Maleta KM, Devaraj S, et al. A combined intervention of zinc, multiple micronutrients, and albendazole does not ameliorate environmental enteric dysfunction or stunting in rural Malawian children in a double-blind randomized controlled trial. J Nutr. 2017;147(1):97–103.PubMedCrossRef
17.
go back to reference Owino V, Ahmed T, Freemark M, Kelly P, Loy A, Manary M, et al. Environmental enteric dysfunction and growth failure/stunting in global child health. Pediatrics. 2016;138(6):e20160641.PubMedCrossRef Owino V, Ahmed T, Freemark M, Kelly P, Loy A, Manary M, et al. Environmental enteric dysfunction and growth failure/stunting in global child health. Pediatrics. 2016;138(6):e20160641.PubMedCrossRef
18.
go back to reference Sankar MJ, Sinha B, Chowdhury R, Bhandari N, Taneja S, Martines J, et al. Optimal breastfeeding practices and infant and child mortality: a systematic review and meta-analysis. Acta Paediatr. 2015;104:3–13.PubMedCrossRef Sankar MJ, Sinha B, Chowdhury R, Bhandari N, Taneja S, Martines J, et al. Optimal breastfeeding practices and infant and child mortality: a systematic review and meta-analysis. Acta Paediatr. 2015;104:3–13.PubMedCrossRef
19.
go back to reference Taylor SN, Basile LA, Ebeling M, Wagner CL. Intestinal permeability in preterm infants by feeding type: mother’s milk versus formula. Breastfeed Med. 2009;4(1):11–5.PubMedPubMedCentralCrossRef Taylor SN, Basile LA, Ebeling M, Wagner CL. Intestinal permeability in preterm infants by feeding type: mother’s milk versus formula. Breastfeed Med. 2009;4(1):11–5.PubMedPubMedCentralCrossRef
20.
go back to reference Lönnerdal B. Biochemistry and physiological function of human milk proteins. Am J Clin Nutr. 1985;42(6):1299–317.PubMed Lönnerdal B. Biochemistry and physiological function of human milk proteins. Am J Clin Nutr. 1985;42(6):1299–317.PubMed
21.
go back to reference Lönnerdal B, Iyer S. Lactoferrin: molecular structure and biological function. Annu Rev Nutr. 1995;15(1):93–110.PubMedCrossRef Lönnerdal B, Iyer S. Lactoferrin: molecular structure and biological function. Annu Rev Nutr. 1995;15(1):93–110.PubMedCrossRef
23.
go back to reference Ochoa TJ, Pezo A, Cruz K, Chea-Woo E, Cleary TG. Clinical studies of lactoferrin in children. Biochem Cell Biol. 2012;90(3):457–67.PubMedCrossRef Ochoa TJ, Pezo A, Cruz K, Chea-Woo E, Cleary TG. Clinical studies of lactoferrin in children. Biochem Cell Biol. 2012;90(3):457–67.PubMedCrossRef
24.
go back to reference King Jr JC, Cummings GE, Guo N, Trivedi L, Readmond BX, Keane V, et al. A double-blind, placebo-controlled, pilot study of bovine lactoferrin supplementation in bottle-fed infants. J Pediatr Gastroenterol Nutr. 2007;44(2):245–51.PubMedCrossRef King Jr JC, Cummings GE, Guo N, Trivedi L, Readmond BX, Keane V, et al. A double-blind, placebo-controlled, pilot study of bovine lactoferrin supplementation in bottle-fed infants. J Pediatr Gastroenterol Nutr. 2007;44(2):245–51.PubMedCrossRef
25.
go back to reference Braun OH, Sandkühler H. Relationships between lysozyme concentration of human milk, bacteriologic content, and weight gain of premature infants. J Pediatr Gastroenterol Nutr. 1985;4(4):583–6.PubMedCrossRef Braun OH, Sandkühler H. Relationships between lysozyme concentration of human milk, bacteriologic content, and weight gain of premature infants. J Pediatr Gastroenterol Nutr. 1985;4(4):583–6.PubMedCrossRef
26.
go back to reference Cooper CA, Brundige DR, Reh WA, Maga EA, Murray JD. Lysozyme transgenic goats’ milk positively impacts intestinal cytokine expression and morphology. Transgenic Res. 2011;20(6):1235–43.PubMedPubMedCentralCrossRef Cooper CA, Brundige DR, Reh WA, Maga EA, Murray JD. Lysozyme transgenic goats’ milk positively impacts intestinal cytokine expression and morphology. Transgenic Res. 2011;20(6):1235–43.PubMedPubMedCentralCrossRef
27.
go back to reference Ventura M, O'Flaherty S, Claesson MJ, Turroni F, Klaenhammer TR, van Sinderen D, et al. Genome-scale analyses of health-promoting bacteria: probiogenomics. Nat Rev Micro. 2009;7(1):61–71.CrossRef Ventura M, O'Flaherty S, Claesson MJ, Turroni F, Klaenhammer TR, van Sinderen D, et al. Genome-scale analyses of health-promoting bacteria: probiogenomics. Nat Rev Micro. 2009;7(1):61–71.CrossRef
28.
go back to reference Maga EA, Desai PT, Weimer BC, Dao N, Kültz D, Murray JD. Consumption of lysozyme-rich milk can alter microbial fecal populations. Appl Environ Microbiol. 2012;78(17):6153–60.PubMedPubMedCentralCrossRef Maga EA, Desai PT, Weimer BC, Dao N, Kültz D, Murray JD. Consumption of lysozyme-rich milk can alter microbial fecal populations. Appl Environ Microbiol. 2012;78(17):6153–60.PubMedPubMedCentralCrossRef
29.
go back to reference Garas LC, Feltrin C, Hamilton MK, Hagey JV, Murray JD, Bertolini LR, et al. Milk with and without lactoferrin can influence intestinal damage in a pig model of malnutrition. Food Funct. 2016;7(2):665–78.PubMedCrossRef Garas LC, Feltrin C, Hamilton MK, Hagey JV, Murray JD, Bertolini LR, et al. Milk with and without lactoferrin can influence intestinal damage in a pig model of malnutrition. Food Funct. 2016;7(2):665–78.PubMedCrossRef
30.
go back to reference Ellison RT, Giehl TJ, LaForce FM. Damage of the outer membrane of enteric Gram-negative bacteria by lactoferrin and transferrin. Infect Immun. 1988;56(11):2774–81.PubMedPubMedCentral Ellison RT, Giehl TJ, LaForce FM. Damage of the outer membrane of enteric Gram-negative bacteria by lactoferrin and transferrin. Infect Immun. 1988;56(11):2774–81.PubMedPubMedCentral
31.
go back to reference Leitch EC, Willcox MDP. Synergic antistaphylococcal properties of lactoferrin and lysozyme. J Med Microbiol. 1998;47(9):837–42.PubMedCrossRef Leitch EC, Willcox MDP. Synergic antistaphylococcal properties of lactoferrin and lysozyme. J Med Microbiol. 1998;47(9):837–42.PubMedCrossRef
32.
go back to reference De Laureto PP, De Filippis V, Scaramella E, Zambonin M, Fontana A. Limited proteolysis of lysozyme in trifluoroethanol. Eur J Biochem. 1995;230(2):779–87.CrossRef De Laureto PP, De Filippis V, Scaramella E, Zambonin M, Fontana A. Limited proteolysis of lysozyme in trifluoroethanol. Eur J Biochem. 1995;230(2):779–87.CrossRef
33.
go back to reference Kuwata H, Yamauchi K, Teraguchi S, Ushida Y, Shimokawa Y, Toida T, et al. Functional fragments of ingested lactoferrin are resistant to proteolytic degradation in the gastrointestinal tract of adult rats. J Nutr. 2001;131(8):2121–7.PubMed Kuwata H, Yamauchi K, Teraguchi S, Ushida Y, Shimokawa Y, Toida T, et al. Functional fragments of ingested lactoferrin are resistant to proteolytic degradation in the gastrointestinal tract of adult rats. J Nutr. 2001;131(8):2121–7.PubMed
34.
go back to reference Zavaleta N, Figueroa D, Rivera J, Sánchez J, Alfaro S, Lönnerdal B. Efficacy of rice-based oral rehydration solution containing recombinant human lactoferrin and lysozyme in Peruvian children with acute diarrhea. J Pediatr Gastroenterol Nutr. 2007;44(2):258–64.PubMedCrossRef Zavaleta N, Figueroa D, Rivera J, Sánchez J, Alfaro S, Lönnerdal B. Efficacy of rice-based oral rehydration solution containing recombinant human lactoferrin and lysozyme in Peruvian children with acute diarrhea. J Pediatr Gastroenterol Nutr. 2007;44(2):258–64.PubMedCrossRef
36.
go back to reference Trehan I, Benzoni NS, Wang AZ, Bollinger LB, Ngoma TN, Chimimba UK, et al. Common beans and cowpeas as complementary foods to reduce environmental enteric dysfunction and stunting in Malawian children: study protocol for two randomized controlled trials. Trials. 2015;16(1):520.PubMedPubMedCentralCrossRef Trehan I, Benzoni NS, Wang AZ, Bollinger LB, Ngoma TN, Chimimba UK, et al. Common beans and cowpeas as complementary foods to reduce environmental enteric dysfunction and stunting in Malawian children: study protocol for two randomized controlled trials. Trials. 2015;16(1):520.PubMedPubMedCentralCrossRef
37.
go back to reference Spears D, Ghosh A, Cumming O. Open defecation and childhood stunting in India: an ecological analysis of new data from 112 districts. PLoS One. 2013;8(9):e73784.PubMedPubMedCentralCrossRef Spears D, Ghosh A, Cumming O. Open defecation and childhood stunting in India: an ecological analysis of new data from 112 districts. PLoS One. 2013;8(9):e73784.PubMedPubMedCentralCrossRef
38.
go back to reference George CM, Oldja L, Biswas S, Perin J, Lee GO, Kosek M, et al. Geophagy is associated with environmental enteropathy and stunting in children in rural Bangladesh. Am J Trop Med Hyg. 2015;92(6):1117–24.PubMedPubMedCentralCrossRef George CM, Oldja L, Biswas S, Perin J, Lee GO, Kosek M, et al. Geophagy is associated with environmental enteropathy and stunting in children in rural Bangladesh. Am J Trop Med Hyg. 2015;92(6):1117–24.PubMedPubMedCentralCrossRef
39.
go back to reference Perin J, Thomas A, Oldja L, Ahmed S, Parvin T, Bhuyian SI, et al. Geophagy is associated with growth faltering in children in rural Bangladesh. J Pediatr. 2016;178:34–9. e1.PubMedCrossRef Perin J, Thomas A, Oldja L, Ahmed S, Parvin T, Bhuyian SI, et al. Geophagy is associated with growth faltering in children in rural Bangladesh. J Pediatr. 2016;178:34–9. e1.PubMedCrossRef
40.
go back to reference Zembe-Mkabile WZ, Jackson D, Sanders D, Besada D, Daniels K, Zamasiya T, et al. The ‘community’ in community case management of childhood illnesses in Malawi. Glob Health Action. 2016;9(1):29177.CrossRef Zembe-Mkabile WZ, Jackson D, Sanders D, Besada D, Daniels K, Zamasiya T, et al. The ‘community’ in community case management of childhood illnesses in Malawi. Glob Health Action. 2016;9(1):29177.CrossRef
41.
go back to reference World Medical Association. World Medical Association Declaration of Helsinki: ethical principles for medical research involving human subjects. JAMA. 2013;310(20):2191–4.CrossRef World Medical Association. World Medical Association Declaration of Helsinki: ethical principles for medical research involving human subjects. JAMA. 2013;310(20):2191–4.CrossRef
42.
go back to reference Weisz AJ, Manary MJ, Stephenson K, Agapova S, Manary FG, Thakwalakwa C, et al. Abnormal gut integrity is associated with reduced linear growth in rural Malawian children. J Pediatr Gastroenterol Nutr. 2012;55(6):747–50.PubMedCrossRef Weisz AJ, Manary MJ, Stephenson K, Agapova S, Manary FG, Thakwalakwa C, et al. Abnormal gut integrity is associated with reduced linear growth in rural Malawian children. J Pediatr Gastroenterol Nutr. 2012;55(6):747–50.PubMedCrossRef
43.
go back to reference Ordiz MI, Shaikh N, Trehan I, Maleta K, Stauber J, Shulman R, et al. Environmental enteric dysfunction is associated with poor linear growth and can be identified by host fecal mRNAs. J Pediatr Gastroenterol Nutr. 2016;63(5):453–9.PubMedPubMedCentralCrossRef Ordiz MI, Shaikh N, Trehan I, Maleta K, Stauber J, Shulman R, et al. Environmental enteric dysfunction is associated with poor linear growth and can be identified by host fecal mRNAs. J Pediatr Gastroenterol Nutr. 2016;63(5):453–9.PubMedPubMedCentralCrossRef
44.
go back to reference Yu J, Ordiz MI, Stauber J, Shaikh N, Trehan I, Barnell E, et al. Environmental enteric dysfunction includes a broad spectrum of inflammatory responses and epithelial repair processes. Cell Mol Gastroenterol Hepatol. 2016;2(2):158–74. e1.PubMedCrossRef Yu J, Ordiz MI, Stauber J, Shaikh N, Trehan I, Barnell E, et al. Environmental enteric dysfunction includes a broad spectrum of inflammatory responses and epithelial repair processes. Cell Mol Gastroenterol Hepatol. 2016;2(2):158–74. e1.PubMedCrossRef
45.
46.
go back to reference Ochoa TJ, Chea-Woo E, Baiocchi N, Pecho I, Campos M, Prada A, et al. Randomized double-blind controlled trial of bovine lactoferrin for prevention of diarrhea in children. J Pediatr. 2013;162(2):349–56.PubMedCrossRef Ochoa TJ, Chea-Woo E, Baiocchi N, Pecho I, Campos M, Prada A, et al. Randomized double-blind controlled trial of bovine lactoferrin for prevention of diarrhea in children. J Pediatr. 2013;162(2):349–56.PubMedCrossRef
48.
go back to reference Atef Yekta M, Verdonck F, Van Den Broeck W, Goddeeris B, Cox E, Vanrompay D. Lactoferrin inhibits e. Coli o157: H7 growth and attachment to intestinal epithelial cells. Vet Med. 2010;55(8):359–68. Atef Yekta M, Verdonck F, Van Den Broeck W, Goddeeris B, Cox E, Vanrompay D. Lactoferrin inhibits e. Coli o157: H7 growth and attachment to intestinal epithelial cells. Vet Med. 2010;55(8):359–68.
49.
go back to reference Huang J, Wu L, Yalda D, Adkins Y, Kelleher SL, Crane M, et al. Expression of functional recombinant human lysozyme in transgenic rice cell culture. Transgenic Res. 2002;11(3):229–39.PubMedCrossRef Huang J, Wu L, Yalda D, Adkins Y, Kelleher SL, Crane M, et al. Expression of functional recombinant human lysozyme in transgenic rice cell culture. Transgenic Res. 2002;11(3):229–39.PubMedCrossRef
50.
go back to reference WHO Multicentre Growth Reference Study Group. Assessment of differences in linear growth among populations in the WHO Multicentre Growth Reference Study. Acta Paediatr Suppl. 2006;450:56–65. WHO Multicentre Growth Reference Study Group. Assessment of differences in linear growth among populations in the WHO Multicentre Growth Reference Study. Acta Paediatr Suppl. 2006;450:56–65.
51.
go back to reference Trehan I, Manary MJ. Management of severe acute malnutrition in low-income and middle-income countries. Arch Dis Child. 2015;100(3):283–7.PubMedCrossRef Trehan I, Manary MJ. Management of severe acute malnutrition in low-income and middle-income countries. Arch Dis Child. 2015;100(3):283–7.PubMedCrossRef
52.
go back to reference World Health Organization. Supplementary foods for the management of moderate acute malnutrition. Geneva: World Health Organization; 2012. World Health Organization. Supplementary foods for the management of moderate acute malnutrition. Geneva: World Health Organization; 2012.
53.
go back to reference World Health Organization. Guideline: updates on the management of severe acute malnutrition in infants and children. Geneva: World Health Organization; 2013. World Health Organization. Guideline: updates on the management of severe acute malnutrition in infants and children. Geneva: World Health Organization; 2013.
54.
go back to reference Denno DM, VanBuskirk K, Nelson ZC, Musser CA, Hay Burgess DC, Tarr PI. Use of the lactulose to mannitol ratio to evaluate childhood environmental enteric dysfunction: a systematic review. Clin Infect Dis. 2014;59 Suppl 4:S213–9.PubMedCrossRef Denno DM, VanBuskirk K, Nelson ZC, Musser CA, Hay Burgess DC, Tarr PI. Use of the lactulose to mannitol ratio to evaluate childhood environmental enteric dysfunction: a systematic review. Clin Infect Dis. 2014;59 Suppl 4:S213–9.PubMedCrossRef
55.
go back to reference Ukabam SO, Cooper BT. Small intestinal permeability as an indicator of jejunal mucosal recovery in patients with celiac sprue on a gluten-free diet. J Clin Gastroenterol. 1985;7(3):232–6.PubMedCrossRef Ukabam SO, Cooper BT. Small intestinal permeability as an indicator of jejunal mucosal recovery in patients with celiac sprue on a gluten-free diet. J Clin Gastroenterol. 1985;7(3):232–6.PubMedCrossRef
56.
go back to reference Zhang Y, Lee B, Thompson M, Glass R, Cama RI, Figueroa D, et al. Lactulose-mannitol intestinal permeability test in children with diarrhea caused by rotavirus and cryptosporidium. Diarrhea working group, Peru. J Pediatr Gastroenterol Nutr. 2000;31(1):16–21.PubMedCrossRef Zhang Y, Lee B, Thompson M, Glass R, Cama RI, Figueroa D, et al. Lactulose-mannitol intestinal permeability test in children with diarrhea caused by rotavirus and cryptosporidium. Diarrhea working group, Peru. J Pediatr Gastroenterol Nutr. 2000;31(1):16–21.PubMedCrossRef
57.
go back to reference Chen P, Soares AM, Lima AA, Gamble MV, Schorling JB, Conway M, et al. Association of vitamin a and zinc status with altered intestinal permeability: analyses of cohort data from northeastern Brazil. J Health Popul Nutr. 2003;21(4):309–15.PubMed Chen P, Soares AM, Lima AA, Gamble MV, Schorling JB, Conway M, et al. Association of vitamin a and zinc status with altered intestinal permeability: analyses of cohort data from northeastern Brazil. J Health Popul Nutr. 2003;21(4):309–15.PubMed
58.
go back to reference Goto K, Chew F, Torun B, Peerson JM, Brown KH. Epidemiology of altered intestinal permeability to lactulose and mannitol in Guatemalan infants. J Pediatr Gastroenterol Nutr. 1999;28(3):282–90.PubMedCrossRef Goto K, Chew F, Torun B, Peerson JM, Brown KH. Epidemiology of altered intestinal permeability to lactulose and mannitol in Guatemalan infants. J Pediatr Gastroenterol Nutr. 1999;28(3):282–90.PubMedCrossRef
59.
go back to reference Semba RD, Shardell M, Trehan I, Moaddel R, Maleta KM, Ordiz MI, et al. Metabolic alterations in children with environmental enteric dysfunction. Sci Rep. 2016;6:28009.PubMedPubMedCentralCrossRef Semba RD, Shardell M, Trehan I, Moaddel R, Maleta KM, Ordiz MI, et al. Metabolic alterations in children with environmental enteric dysfunction. Sci Rep. 2016;6:28009.PubMedPubMedCentralCrossRef
60.
go back to reference Lunn PG, Northrop-Clewes CA, Downes RM. Intestinal permeability, mucosal injury, and growth faltering in Gambian infants. Lancet. 1991;338(8772):907–10.PubMedCrossRef Lunn PG, Northrop-Clewes CA, Downes RM. Intestinal permeability, mucosal injury, and growth faltering in Gambian infants. Lancet. 1991;338(8772):907–10.PubMedCrossRef
61.
go back to reference Mishra A, Makharia GK. Techniques of functional and motility test: how to perform and interpret intestinal permeability. J Neurogastroenterol Motil. 2012;18(4):443–7.PubMedPubMedCentralCrossRef Mishra A, Makharia GK. Techniques of functional and motility test: how to perform and interpret intestinal permeability. J Neurogastroenterol Motil. 2012;18(4):443–7.PubMedPubMedCentralCrossRef
62.
go back to reference Shulman RJ, Eakin MN, Czyzewski DI, Jarrett M, Ou CN. Increased gastrointestinal permeability and gut inflammation in children with functional abdominal pain and irritable bowel syndrome. J Pediatr. 2008;153(5):646–50.PubMedPubMedCentralCrossRef Shulman RJ, Eakin MN, Czyzewski DI, Jarrett M, Ou CN. Increased gastrointestinal permeability and gut inflammation in children with functional abdominal pain and irritable bowel syndrome. J Pediatr. 2008;153(5):646–50.PubMedPubMedCentralCrossRef
63.
go back to reference Scrimshaw NS, Taylor CE, Gordon JE. Interactions of nutrition and infection. Monogr Ser World Health Organ. 1968;57:3–329.PubMed Scrimshaw NS, Taylor CE, Gordon JE. Interactions of nutrition and infection. Monogr Ser World Health Organ. 1968;57:3–329.PubMed
64.
go back to reference Checkley W, Buckley G, Gilman RH, Assis AM, Guerrant RL, Morris SS, et al. Multi-country analysis of the effects of diarrhoea on childhood stunting. Int J Epidemiol. 2008;37(4):816–30.PubMedPubMedCentralCrossRef Checkley W, Buckley G, Gilman RH, Assis AM, Guerrant RL, Morris SS, et al. Multi-country analysis of the effects of diarrhoea on childhood stunting. Int J Epidemiol. 2008;37(4):816–30.PubMedPubMedCentralCrossRef
65.
go back to reference Guerrant RL, DeBoer MD, Moore SR, Scharf RJ, Lima AA. The impoverished gut—a triple burden of diarrhoea, stunting and chronic disease. Nat Rev Gastroenterol Hepatol. 2013;10(4):220–9.PubMedCrossRef Guerrant RL, DeBoer MD, Moore SR, Scharf RJ, Lima AA. The impoverished gut—a triple burden of diarrhoea, stunting and chronic disease. Nat Rev Gastroenterol Hepatol. 2013;10(4):220–9.PubMedCrossRef
67.
go back to reference Walker A. Breast milk as the gold standard for protective nutrients. J Pediatr. 2010;156(2 Suppl):S3–7.PubMedCrossRef Walker A. Breast milk as the gold standard for protective nutrients. J Pediatr. 2010;156(2 Suppl):S3–7.PubMedCrossRef
68.
go back to reference Montagne P, Cuilliere ML, Mole C, Bene MC, Faure G. Changes in lactoferrin and lysozyme levels in human milk during the first twelve weeks of lactation. Adv Exp Med Biol. 2001;501:241–7.PubMedCrossRef Montagne P, Cuilliere ML, Mole C, Bene MC, Faure G. Changes in lactoferrin and lysozyme levels in human milk during the first twelve weeks of lactation. Adv Exp Med Biol. 2001;501:241–7.PubMedCrossRef
69.
go back to reference Wang RJ, Trehan I, LaGrone LN, Weisz AJ, Thakwalakwa CM, Maleta KM, et al. Investigation of food acceptability and feeding practices for lipid nutrient supplements and blended flours used to treat moderate malnutrition. J Nutr Educ Behav. 2013;45(3):258–63.PubMedCrossRef Wang RJ, Trehan I, LaGrone LN, Weisz AJ, Thakwalakwa CM, Maleta KM, et al. Investigation of food acceptability and feeding practices for lipid nutrient supplements and blended flours used to treat moderate malnutrition. J Nutr Educ Behav. 2013;45(3):258–63.PubMedCrossRef
70.
go back to reference Trehan I, Goldbach HS, LaGrone LN, Meuli GJ, Wang RJ, Maleta KM, et al. Antibiotics as part of the management of severe acute malnutrition. N Engl J Med. 2013;368(5):425–35.PubMedPubMedCentralCrossRef Trehan I, Goldbach HS, LaGrone LN, Meuli GJ, Wang RJ, Maleta KM, et al. Antibiotics as part of the management of severe acute malnutrition. N Engl J Med. 2013;368(5):425–35.PubMedPubMedCentralCrossRef
Metadata
Title
Lactoferrin and lysozyme to reduce environmental enteric dysfunction and stunting in Malawian children: study protocol for a randomized controlled trial
Authors
William D. Cheng
Karl J. Wold
Nicole S. Benzoni
Chrissie Thakwalakwa
Kenneth M. Maleta
Mark J. Manary
Indi Trehan
Publication date
01-12-2017
Publisher
BioMed Central
Published in
Trials / Issue 1/2017
Electronic ISSN: 1745-6215
DOI
https://doi.org/10.1186/s13063-017-2278-8

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