Fungi and bacteria in the beds of rural and urban infants correlate with later risk of atopic diseases
© 2023 The Authors. Clinical & Experimental Allergy published by John Wiley & Sons Ltd..
INTRODUCTION: Rural children have a lower risk of asthma and atopic diseases than urban children. However, whether indoor microbiota in non-farming rural homes provides protection is unclear.
METHODS: Here, we examine if microbes in the beds of rural and urban infants are associated with later development of atopic diseases. We studied fungi and bacteria in the beds of 6-month-old infants (n = 514) in association with the risk of asthma, allergic rhinitis, eczema and aeroallergen sensitization at 6 years of age in the prospective COPSAC2010 cohort.
RESULTS: Both fungal and bacterial diversity were lower in the beds of children, who later developed allergic rhinitis (-0.22 [-0.43,-0.01], padj = .04 and -.24 [-0.42,-0.05], padj = .01 respectively) and lower bacterial richness was discovered in beds of children later developing asthma (-41.34 [-76.95,-5.73], padj = .02) or allergic rhinitis (-45.65 [-81.19,-10.10], padj = .01). Interestingly, higher fungal diversity and richness were discovered in the beds of children developing eczema (0.23 [0.02,0.43], padj = .03 and 29.21 [1.59,56.83], padj = .04 respectively). We defined a limited set of fungal and bacterial genera that predicted rural/urban environment. Some rural-associated bacterial genera such as Romboutsia and Bacillus and fungal genera Spegazzinia and Physcia were also associated with reduced risk of diseases, including eczema. These fungal and bacterial fingerprints predicting the living environment were associated with asthma and allergic rhinitis, but not eczema, with rural compositions being protective. The bed dust bacteria mediated 27% of the protective association of a rural living environment for allergic rhinitis (p = .04).
CONCLUSIONS: Bed dust microbes can be differentially associated with airway- and skin-related diseases. The differing bed dust microbiota between rural and urban infants may influence their later risk of asthma and allergic rhinitis.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:53 |
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| Enthalten in: |
Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology - 53(2023), 12 vom: 06. Dez., Seite 1268-1278 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Lehtimäki, Jenni [VerfasserIn] |
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| Links: |
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| Themen: |
Childhood |
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| Anmerkungen: |
Date Completed 16.12.2023 Date Revised 05.04.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1111/cea.14414 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 100 | 1 | |a Lehtimäki, Jenni |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Fungi and bacteria in the beds of rural and urban infants correlate with later risk of atopic diseases |
| 264 | 1 | |c 2023 | |
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| 500 | |a Date Completed 16.12.2023 | ||
| 500 | |a Date Revised 05.04.2024 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a © 2023 The Authors. Clinical & Experimental Allergy published by John Wiley & Sons Ltd. | ||
| 520 | |a INTRODUCTION: Rural children have a lower risk of asthma and atopic diseases than urban children. However, whether indoor microbiota in non-farming rural homes provides protection is unclear | ||
| 520 | |a METHODS: Here, we examine if microbes in the beds of rural and urban infants are associated with later development of atopic diseases. We studied fungi and bacteria in the beds of 6-month-old infants (n = 514) in association with the risk of asthma, allergic rhinitis, eczema and aeroallergen sensitization at 6 years of age in the prospective COPSAC2010 cohort | ||
| 520 | |a RESULTS: Both fungal and bacterial diversity were lower in the beds of children, who later developed allergic rhinitis (-0.22 [-0.43,-0.01], padj = .04 and -.24 [-0.42,-0.05], padj = .01 respectively) and lower bacterial richness was discovered in beds of children later developing asthma (-41.34 [-76.95,-5.73], padj = .02) or allergic rhinitis (-45.65 [-81.19,-10.10], padj = .01). Interestingly, higher fungal diversity and richness were discovered in the beds of children developing eczema (0.23 [0.02,0.43], padj = .03 and 29.21 [1.59,56.83], padj = .04 respectively). We defined a limited set of fungal and bacterial genera that predicted rural/urban environment. Some rural-associated bacterial genera such as Romboutsia and Bacillus and fungal genera Spegazzinia and Physcia were also associated with reduced risk of diseases, including eczema. These fungal and bacterial fingerprints predicting the living environment were associated with asthma and allergic rhinitis, but not eczema, with rural compositions being protective. The bed dust bacteria mediated 27% of the protective association of a rural living environment for allergic rhinitis (p = .04) | ||
| 520 | |a CONCLUSIONS: Bed dust microbes can be differentially associated with airway- and skin-related diseases. The differing bed dust microbiota between rural and urban infants may influence their later risk of asthma and allergic rhinitis | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a childhood | |
| 650 | 4 | |a dust microbiome | |
| 650 | 4 | |a indoor microbiome | |
| 650 | 4 | |a non-communicable diseases | |
| 650 | 4 | |a residential environment | |
| 650 | 4 | |a urbanization | |
| 650 | 7 | |a Dust |2 NLM | |
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| 700 | 1 | |a Hjelmsø, Mathis |e verfasserin |4 aut | |
| 700 | 1 | |a Shah, Shiraz |e verfasserin |4 aut | |
| 700 | 1 | |a Thorsen, Jonathan |e verfasserin |4 aut | |
| 700 | 1 | |a Rasmussen, Morten Arendt |e verfasserin |4 aut | |
| 700 | 1 | |a Soverini, Matteo |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Xuanji |e verfasserin |4 aut | |
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| 700 | 1 | |a Trivedi, Urvish |e verfasserin |4 aut | |
| 700 | 1 | |a Brix, Susanne |e verfasserin |4 aut | |
| 700 | 1 | |a Bønnelykke, Klaus |e verfasserin |4 aut | |
| 700 | 1 | |a Chawes, Bo Lund |e verfasserin |4 aut | |
| 700 | 1 | |a Bisgaard, Hans |e verfasserin |4 aut | |
| 700 | 1 | |a Sørensen, Søren J |e verfasserin |4 aut | |
| 700 | 1 | |a Stokholm, Jakob |e verfasserin |4 aut | |
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