Abstract:
:The purpose of the present study was to determine the extent to which bacteria not detected by culture contribute to the microbial flora of the bowel of preterm infants with and without neonatal necrotizing enterocolitis (NEC). Fecal samples from 32 preterm infants in special care baby units including samples from 10 infants with NEC were examined by culture and PCR amplification of the 16S rRNA gene (rDNA). The 16S rDNA V3 region was amplified with eubacterial primers, and the amplification products derived from the fecal sample DNA were compared with the products from individual cultured isolates by PCR and denaturing gradient gel electrophoresis (PCR-DGGE), allowing the DNA from uncultured bacteria to be identified. For the 22 infants without NEC weekly samples were examined for a mean of 5.3 postnatal weeks. The total number of types detected by culture combined with PCR-DGGE was 10.1 per infant, of which PCR-DGGE contributed 10.4% of the types identified. Additional types detected by PCR-DGGE were found in 14 (63.6%) of the 22 infants. The majority of the sequences associated with uncultured bacteria showed > 90% 16S rDNA sequence identity with sequences from culturable human enteric flora, and all were found in single infants with the exception of sequences indistinguishable by DGGE from seven infants. These sequences showed > 90% sequence identity with the 16S rDNA of Streptococcus salivarius and may have been derived from upper gastrointestinal or respiratory tract flora. In the present study uncultured bacteria detected by PCR-DGGE were no more frequent in fecal samples from infants with NEC than in samples from infants without NEC, although these findings do not exclude the possibility of unrecognized bacteria associated with the mucosa of the small intestine of infants with NEC.
journal_name
J Clin Microbioljournal_title
Journal of clinical microbiologyauthors
Millar MR,Linton CJ,Cade A,Glancy D,Hall M,Jalal Hdoi
10.1128/JCM.34.10.2506-2510.1996subject
Has Abstractpub_date
1996-10-01 00:00:00pages
2506-10issue
10eissn
0095-1137issn
1098-660Xjournal_volume
34pub_type
杂志文章abstract::Two new T-cell-based reporter cell lines were established to measure human immunodeficiency virus type 1 (HIV-1) infectivity. One cell line naturally expresses CD4 and CXCR4, making it susceptible to X4-tropic viruses, and the other cell line, in which a CCR5 expression vector was introduced, is susceptible to both X4...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01708-06
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journal_title:Journal of clinical microbiology
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doi:10.1128/JCM.01159-11
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.34.3.537-542.1996
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abstract::Single multiplexed assays could replace the standard 2-tiered (STT) algorithm recommended for the laboratory diagnosis of Lyme disease if they perform with a specificity and a sensitivity superior or equal to those of the STT algorithm. We used human serum rigorously characterized to be sera from patients with acute- ...
journal_title:Journal of clinical microbiology
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doi:10.1128/JCM.01142-19
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abstract::In 32 patients for whom highly active antiretroviral therapy was failing, a good agreement between drug resistance-associated mutations in plasma and peripheral blood mononuclear cells (PBMCs) was found (k = 0.85). The mutations with the lowest agreement were 20R, 63P, and 84V in the protease gene and 184V in the reve...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.41.4.1760-1762.2003
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abstract::The capsular-like envelope of Legionella pneumophila strains Togus 1 (serotype 2) and Philadelphia 1 (serotype 1) was isolated and purified by column chromatography on Sepharose 6B. Antibody raised in rabbits to these two antigenic materials did not cross-react in gel diffusion. Upon electrophoresis followed by gel di...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.13.4.637-642.1981
更新日期:1981-04-01 00:00:00
abstract::Real-time isothermal nucleic acid sequence-based amplification (RT-NASBA) was applied to the detection of Mycoplasma pneumoniae. In vitro-generated M. pneumoniae RNA was used to assess the sensitivity of the assay. The 95% hit rate was 148 molecules of M. pneumoniae RNA in the amplification and 10(4) molecules of in v...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.41.9.4448-4450.2003
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abstract::Detection of the source of Clostridium difficile strains is of importance for the control of the nosocomial spread of this microorganism. For this purpose, vaginal and rectal swabs from 183 mothers, duplicate fecal samples (taken on days 1 and 4 after birth) from 183 neonates, and 94 environmental samples were culture...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.33.8.2016-2021.1995
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.22.1.9-12.1985
更新日期:1985-07-01 00:00:00
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.12.5.690-694.1980
更新日期:1980-11-01 00:00:00
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.34.12.3072-3074.1996
更新日期:1996-12-01 00:00:00
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02437-07
更新日期:2008-09-01 00:00:00
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.27.10.2214-2217.1989
更新日期:1989-10-01 00:00:00
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.29.9.2030-2033.1991
更新日期:1991-09-01 00:00:00
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journal_title:Journal of clinical microbiology
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.37.11.3707-3710.1999
更新日期:1999-11-01 00:00:00
abstract::Between 1998 and 2001, tissues from four captive white-tailed deer were observed to have histologic lesions of systemic lymphocytic vasculitis. These lesions suggested malignant catarrhal fever, although epizootic hemorrhagic disease and bluetongue were included in the differential diagnosis. Initial diagnostic effort...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.40.4.1311-1318.2002
更新日期:2002-04-01 00:00:00
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.32.4.960-963.1994
更新日期:1994-04-01 00:00:00
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journal_title:Journal of clinical microbiology
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.33.8.2069-2076.1995
更新日期:1995-08-01 00:00:00
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doi:10.1128/JCM.44.5.1733-1739.2006
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journal_title:Journal of clinical microbiology
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更新日期:2002-10-01 00:00:00
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.34.1.216-217.1996
更新日期:1996-01-01 00:00:00
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journal_title:Journal of clinical microbiology
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更新日期:2012-07-01 00:00:00
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.12.6.753-760.1980
更新日期:1980-12-01 00:00:00
abstract::Monoclonal antibodies to K88ac and K88ab were used in enzyme-linked immunosorbent assays on Escherichia coli cultures known to produce K88 pili. A total of 415 K88-positive E. coli isolates from nine states were all found to be the K88ac variant. The cultures tested were isolated during the years 1976 to 1985. ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.26.1.149-150.1988
更新日期:1988-01-01 00:00:00
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.20.1.77-80.1984
更新日期:1984-07-01 00:00:00
abstract::The detection of porphyrins produced from omega-aminolevulinic acid was evaluated for use in speciation of the Haemophilus. Two hundred and forty-eight clinical isolates of nonhemolytic Haemophilus were tested concurrently for porphyrin production and for X and V requirements. The porphyrin production test was more ra...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:1977-02-01 00:00:00
abstract::The Mycobacterium tuberculosis complex includes the four species M. tuberculosis, M. bovis, M. africanum, and M. microti. We sequenced 13 M. tuberculosis complex strains in the 16S-to-23S rDNA internal transcribed spacer (ITS). The ITS has a high rate of nucleotide substitution. Previous reports found three nucleotide...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.32.7.1639-1643.1994
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