Cited by 762Gut microbiota and healthClostridium difficile and Clostridium perfringens researchMicrobial Community Ecology and Physiology

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Characterization of Bacterial Communities in Feces from Healthy Elderly Volunteers and Hospitalized Elderly Patients by Using Real-Time PCR and Effects of Antibiotic Treatment on the Fecal Microbiota

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Bartosch, Sabine, Fite, Alemu, Macfarlane, George T., McMurdo, Marion E. T.·2004·Applied and Environmental Microbiology

DOI 10.1128/aem.70.6.3575-3581.2004PMC PMC427772

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Abstract

Fecal bacteria were studied in healthy elderly volunteers (age, 63 to 90 years;n= 35) living in the local community, elderly hospitalized patients (age, 66 to 103;n= 38), and elderly hospitalized patients receiving antibiotic treatment (age, 65 to 100;n= 21). Group- and species-specific primer sets targeting 16S rRNA genes were used to quantitate intestinal bacteria by using DNA extracted from feces and real-time PCR. The principal difference between healthy elderly volunteers and both patient cohorts was a marked reduction in the Bacteroides-Prevotella group following hospitalization. Reductions in bifidobacteria,Desulfovibrio spp.,Clostridium clostridiiforme, and Faecalibacterium prausnitzii were also found in the hospitalized patients. However, total 16S rRNA gene copy numbers (per gram of wet weight of feces) were generally lower in the stool samples of the two groups of hospitalized patients compared to the number in the stool samples of elderly volunteers living in the community, so the relative abundance (percentage of the group- and species-specific rRNA gene copies in relation to total bacterial rRNA gene copies) of bifidobacteria,Desulfovibrio spp.,C. clostridiiforme, and F. prausnitzii did not change. Antibiotic treatment resulted in further reductions in the numbers of bacteria and their prevalence and, in some patients, complete elimination of certain bacterial communities. Conversely, the numbers of enterobacteria increased in the hospitalized patients who did not receive antibiotics, and due to profound changes in fecal microbiotas during antibiotic treatment, the opportunistic species Enterococcus faecalis proliferated.

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Additional file 5 of The pleiotropic effects of prebiotic galacto-oligosaccharides on the aging gut
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Additional file 3 of The pleiotropic effects of prebiotic galacto-oligosaccharides on the aging gut
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Additional file 4 of The pleiotropic effects of prebiotic galacto-oligosaccharides on the aging gut
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Additional file 1 of The pleiotropic effects of prebiotic galacto-oligosaccharides on the aging gut
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Additional file 6 of The pleiotropic effects of prebiotic galacto-oligosaccharides on the aging gut
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Authors: Bartosch, S., Fite, A., Macfarlane, G. T., & McMurdo, M. E. T.
Affiliations: University of Dundee (GB)
MRC Microbiology and Gut Biology Group
Venue: Applied and Environmental Microbiology
Publisher: American Society for Microbiology
Published: 2004-06
Volume: 70
Issue: 6
Pages: 3575-3581
ISSN: 0099-2240 (ISSN-L)
1098-5336
DOI: 10.1128/aem.70.6.3575-3581.2004
PMC: PMC427772
OpenAlex: W2109744701
Cited by: 762
References: 51
Citations by year: 2026: 15 · 2025: 29 · 2024: 12 · 2023: 31 · 2022: 36 · 2021: 51 · 2020: 49 · 2019: 36 · 2018: 38 · 2017: 63 · 2016: 59 · 2015: 65 · 2014: 44 · 2013: 46 · 2012: 46
FWCI: 4.63
Type: journal article
Language: en
Open access: green
europepmc.org
Licence: journals.asm.org/non-commercial-tdm-license (tdm)
Locations: Applied and Environmental Microbiology (publishedVersion)
Europe PMC (PubMed Central) (publishedVersion)
PubMed Central (publishedVersion)
PubMed (publishedVersion)
Discovery Research Portal (University of Dundee) (submittedVersion)
Funders: Medical Research Council
Topics: Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
Health Sciences › Medicine › Infectious Diseases › Clostridium difficile and Clostridium perfringens research
Physical Sciences › Environmental Science › Ecology › Microbial Community Ecology and Physiology
Keywords: fecal microbiota, older adults, hospitalized patients, antibiotic therapy, Bifidobacterium, Desulfovibrio, Faecalibacterium prausnitzii, 16S rRNA gene quantification, Enterobacteriaceae, Enterococcus faecalis, intestinal bacteria, community-acquired infections
MeSH terms: Aged, Aged, 80 and over, Anti-Bacterial Agents, Bacteria, Bacterial Infections, DNA, Bacterial, DNA, Ribosomal, Feces, Hospitalization, Humans, RNA, Ribosomal, 16S, Species Specificity, Polymerase Chain Reaction, Ecosystem, DNA Primers, Gene Dosage, Genes, rRNA

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Characterization of Bacterial Communities in Feces from Healthy Elderly Volunteers and Hospitalized Elderly Patients by Using Real-Time PCR and Effects of Antibiotic Treatment on the Fecal Microbiota

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