Interplay between human leukocyte antigen genes and the microbial colonization process of the newborn intestine.

Coeliac disease (CD) development involves genetic (HLA-DQ2/DQ8) and environmental factors. Herein, the influence of the HLA-DQ genotype on the gut colonization process of breast-fed children was determined. A cohort of 20 newborns, with at least one first-degree relative with CD, were classified according to their HLA-DQ genotype into high, intermediate and low genetic risk groups, showing 24-28%, 7-8% and less than 1% probability to develop CD, respectively. Faecal microbiota was analysed at 7 days, 1 and 4 months of children's age by fluorescence in situ hybridization. When considering all data, Gram-negative bacteria and Bacteroides-Prevotella group proportions were higher (P<0.05) in the high than in the intermediate and low genetic risk groups. E. coli, Streptococcus-Lactococcus, E. rectale-C. coccoides, sulphate-reducing bacteria, C. lituseburense and C. histolyticum group proportions were also significantly higher (P<0.05) in the high than in the low genetic risk group. Correlations between these bacterial groups and the genetic risk were also detected (P<0.05). In addition, the number and type of CD relative seemed to influence (P<0.050) these bacterial proportions in children at CD risk. At 4 months of age, similar relationships were established between the high genetic risk to develop CD and the proportions of Streptococcus-Lactococcus (P<0.05), E. rectale-C. coccoides (P<0.05), C. lituseburense (P<0.05), C. histolyticum (P<0.05), Bacteroides-Prevotella (P<0.10) groups and total Gram-negative bacteria (P<0.05). The results suggest a relationship between HLA-DQ genes and the gut microbial colonization process that could lead to a change in the way this disorder is investigated.

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Main Authors: Palma, Giada de, Nova, Esther, Pozo Rubio, Tamara, Sanz, Yolanda
Format: artículo biblioteca
Published: Caister Academic Press 2010
Online Access:http://hdl.handle.net/10261/94237
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spelling dig-ictan-es-10261-942372021-06-22T12:50:43Z Interplay between human leukocyte antigen genes and the microbial colonization process of the newborn intestine. Palma, Giada de Nova, Esther Pozo Rubio, Tamara Sanz, Yolanda Coeliac disease (CD) development involves genetic (HLA-DQ2/DQ8) and environmental factors. Herein, the influence of the HLA-DQ genotype on the gut colonization process of breast-fed children was determined. A cohort of 20 newborns, with at least one first-degree relative with CD, were classified according to their HLA-DQ genotype into high, intermediate and low genetic risk groups, showing 24-28%, 7-8% and less than 1% probability to develop CD, respectively. Faecal microbiota was analysed at 7 days, 1 and 4 months of children's age by fluorescence in situ hybridization. When considering all data, Gram-negative bacteria and Bacteroides-Prevotella group proportions were higher (P<0.05) in the high than in the intermediate and low genetic risk groups. E. coli, Streptococcus-Lactococcus, E. rectale-C. coccoides, sulphate-reducing bacteria, C. lituseburense and C. histolyticum group proportions were also significantly higher (P<0.05) in the high than in the low genetic risk group. Correlations between these bacterial groups and the genetic risk were also detected (P<0.05). In addition, the number and type of CD relative seemed to influence (P<0.050) these bacterial proportions in children at CD risk. At 4 months of age, similar relationships were established between the high genetic risk to develop CD and the proportions of Streptococcus-Lactococcus (P<0.05), E. rectale-C. coccoides (P<0.05), C. lituseburense (P<0.05), C. histolyticum (P<0.05), Bacteroides-Prevotella (P<0.10) groups and total Gram-negative bacteria (P<0.05). The results suggest a relationship between HLA-DQ genes and the gut microbial colonization process that could lead to a change in the way this disorder is investigated. Peer Reviewed 2014-03-26T09:35:40Z 2014-03-26T09:35:40Z 2010 2014-03-26T09:35:40Z artículo http://purl.org/coar/resource_type/c_6501 issn: 1467-3045 Current Issues in Molecular Biology 12: 1- 10 (2010) http://hdl.handle.net/10261/94237 open Caister Academic Press
institution ICTAN ES
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country España
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libraryname Biblioteca del ICTAN España
description Coeliac disease (CD) development involves genetic (HLA-DQ2/DQ8) and environmental factors. Herein, the influence of the HLA-DQ genotype on the gut colonization process of breast-fed children was determined. A cohort of 20 newborns, with at least one first-degree relative with CD, were classified according to their HLA-DQ genotype into high, intermediate and low genetic risk groups, showing 24-28%, 7-8% and less than 1% probability to develop CD, respectively. Faecal microbiota was analysed at 7 days, 1 and 4 months of children's age by fluorescence in situ hybridization. When considering all data, Gram-negative bacteria and Bacteroides-Prevotella group proportions were higher (P<0.05) in the high than in the intermediate and low genetic risk groups. E. coli, Streptococcus-Lactococcus, E. rectale-C. coccoides, sulphate-reducing bacteria, C. lituseburense and C. histolyticum group proportions were also significantly higher (P<0.05) in the high than in the low genetic risk group. Correlations between these bacterial groups and the genetic risk were also detected (P<0.05). In addition, the number and type of CD relative seemed to influence (P<0.050) these bacterial proportions in children at CD risk. At 4 months of age, similar relationships were established between the high genetic risk to develop CD and the proportions of Streptococcus-Lactococcus (P<0.05), E. rectale-C. coccoides (P<0.05), C. lituseburense (P<0.05), C. histolyticum (P<0.05), Bacteroides-Prevotella (P<0.10) groups and total Gram-negative bacteria (P<0.05). The results suggest a relationship between HLA-DQ genes and the gut microbial colonization process that could lead to a change in the way this disorder is investigated.
format artículo
author Palma, Giada de
Nova, Esther
Pozo Rubio, Tamara
Sanz, Yolanda
spellingShingle Palma, Giada de
Nova, Esther
Pozo Rubio, Tamara
Sanz, Yolanda
Interplay between human leukocyte antigen genes and the microbial colonization process of the newborn intestine.
author_facet Palma, Giada de
Nova, Esther
Pozo Rubio, Tamara
Sanz, Yolanda
author_sort Palma, Giada de
title Interplay between human leukocyte antigen genes and the microbial colonization process of the newborn intestine.
title_short Interplay between human leukocyte antigen genes and the microbial colonization process of the newborn intestine.
title_full Interplay between human leukocyte antigen genes and the microbial colonization process of the newborn intestine.
title_fullStr Interplay between human leukocyte antigen genes and the microbial colonization process of the newborn intestine.
title_full_unstemmed Interplay between human leukocyte antigen genes and the microbial colonization process of the newborn intestine.
title_sort interplay between human leukocyte antigen genes and the microbial colonization process of the newborn intestine.
publisher Caister Academic Press
publishDate 2010
url http://hdl.handle.net/10261/94237
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