<i>Alistipes finegoldii</i>in Blood Cultures from Colon Cancer Patients

Fenner, Lukas; Roux, Véronique; Ananian, Priscilla; Raoult, Didier

doi:10.3201/eid1308.060662

Cited by 42 publications

(18 citation statements)

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“…The increased number of patients with severe immunosuppression and treatment for malignancies at our institution may explain the increase found for this group of anaerobes. In addition, new species associated with underlying diseases have emerged (4).…”

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confidence: 99%

Is the Incidence of Anaerobic Bacteremia Decreasing? Analysis of 114,000 Blood Cultures over a Ten-Year Period

et al. 2008

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Anaerobic organisms account for about 4% of bacteremias (range, 0.5% to 9%) depending on geographic location, hospital patient demographics, and patient age (5).From 1974 to 1988, the incidence of anaerobic bacteremia at the Mayo Clinic (Rochester, MN) decreased by 45% (3). Recently, a study from the same institution indicated the reemergence of anaerobic bacteremia from 1993 to 2004 (7). In contrast, a report from a U.S. community hospital provided no evidence for an increase (1). Therefore, we examined the occurrence of anaerobic and aerobic bacteremias at the University Hospital Basel (UHBS), Basel, Switzerland, and analyzed the proportions of six important groups of anaerobes in relation to 1,000 blood cultures as well as in relation to positive aerobic blood culture results over a 10-year period.The UHBS is a 680-bed tertiary care center in Switzerland with 27,000 inpatients and 167,000 outpatients per year. It provides all medical services for adults and is one of the major centers for hematopoietic stem cell transplants in Switzerland (9). We retrospectively analyzed blood culture data for a 10-year period between 1997 and 2006 at UHBS. During the entire study period, the same blood culture system (BacT/ ALERT; bioMérieux, Hazelwood, MO) and the same pair of aerobic/anaerobic bottles (BacT/ALERT FA/FN; bioMérieux) were used according to the manufacturer's instructions and incubated for 6 days. Since clinical data were not available for the entire study period, determination of sepsis versus contaminant was not possible for the isolates. Bacterial identification was performed according to the Wadsworth-KTL anaerobic bacteriology manual (6). Anaerobic organisms were categorized into six groups (Bacteroides fragilis group, Clostridium spp., gram-positive cocci, non-spore-forming gram-positive bacteria, Prevotella/Porphyromonas spp., other Bacteroides spp., and anaerobic gram-negative bacteria) as previously published (7). The rates of bacteremia during two time periods were compared using an incidence rate calculation (Stata 9.2; College Station, TX).A total of 114,338 blood cultures were submitted to the laboratory between 1997 and 2006. From those, 1,084 (0.95%) anaerobic organisms were isolated from blood cultures. The total number of blood cultures steadily increased over the 10

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Is the Incidence of Anaerobic Bacteremia Decreasing? Analysis of 114,000 Blood Cultures over a Ten-Year Period

et al. 2008

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“…A. finegoldii -type organisms were identified by molecular methods as part of the microbiota of chicken guts [32] and they were detected in blood cultures from colon cancer patients [33]. …”

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Complete genome sequence of the bile-resistant pigment-producing anaerobe Alistipes finegoldii type strain (AHN2437T)

Mavromatis¹,

Stackebrandt²,

Munk³

et al. 2013

Stand. Genomic Sci.

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Alistipes finegoldii Rautio et al. 2003 is one of five species of Alistipes with a validly published name: family Rikenellaceae, order Bacteroidetes, class Bacteroidia, phylum Bacteroidetes. This rod-shaped and strictly anaerobic organism has been isolated mostly from human tissues. Here we describe the features of the type strain of this species, together with the complete genome sequence, and annotation. A. finegoldii is the first member of the genus Alistipes for which the complete genome sequence of its type strain is now available. The 3,734,239 bp long single replicon genome with its 3,302 protein-coding and 68 RNA genes is part of the Genomic Encyclopedia of Bacteria and Archaea project.

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“…Members of the genus Alistipes are strictly anaerobic Gram-negative rods that are closely related to the Bacteroides fragilis group, with which they share the characteristic of bile-resistance and indole-positivity. Most Alistipes species have been isolated from human specimens, including the normal intestinal flora [17] and in cases of bacteremia, appendicitis, perirectal and brain abscess [18-20]. A 16S rRNA phylogenetic analysis revealed that A. obesi was closely related to A.…”

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confidence: 99%

Non contiguous-finished genome sequence and description of Alistipes obesi sp. nov

Hugon¹,

Ramasamy²,

Lagier³

et al. 2013

Stand. Genomic Sci.

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Alistipes obesi sp. nov. strain ph8T is the type strain of A. obesi, a new species within the genus Alistipes. This strain, whose genome is described here, was isolated from the fecal flora of a 26-year-old woman suffering from morbid obesity. A. obesi is an obligately anaerobic rod. Here we describe the features of this organism, together with the complete genome sequence and annotation. The 3,162,233 bp long genome (1 chromosome but no plasmid) contains 2,623 protein-coding and 49 RNA genes, including three rRNA genes.

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Alistipes finegoldiiin Blood Cultures from Colon Cancer Patients

Cited by 42 publications

References 10 publications

Is the Incidence of Anaerobic Bacteremia Decreasing? Analysis of 114,000 Blood Cultures over a Ten-Year Period

Is the Incidence of Anaerobic Bacteremia Decreasing? Analysis of 114,000 Blood Cultures over a Ten-Year Period

Complete genome sequence of the bile-resistant pigment-producing anaerobe Alistipes finegoldii type strain (AHN2437T)

Non contiguous-finished genome sequence and description of Alistipes obesi sp. nov

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