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pediococcus pentosaceus bacteremia

Pediococcus acidilactici caused septicemia in a 53-year-old man, and P. pentosaceus caused bacteremia in a 64-day-old infant. According to the current keys for differentiation and identification ofPediococcus (9), the two arabinose-positive pediococcal species (P. acidilactici and P. pentosaceus), which are the most frequently associated with human sources, should be negative for the production of acids from sucrose. BACTEC culture of PD fluid isolated growth of Gram-positive cocci, which was confirmed as Pediococcus pentosaceus . This appears to be the first reported case of septicemia caused by this organism. Distinct parameters were used to resolve P. acidilactici and P. pentosaceus DNA fragments. Lane 2, 3141-90; lane 3, 3142-90; lane 4, 3144-90; lane 5, 3146-90; lane 6, 874-92; lane 7, 989-92; lane 8, 1701-93; lane 9, 2165-93; lane 10, 194-94; lane 11, 768-95; lane 12, 155-89; lane 13, 562-89; lane 14, 2893-90; lane 15, 578-91; lane 16, 579-91; lane 17, 1616-91; lane 18, 1934-94; lane 19, 4140-96. Seven patients were hospitalized before P. acidilactici was isolated. The 34 If these causes of persistent enterococcal bacteremia are eliminated, microbiologic and antimicrobial therapy-related causes for persistent bacteremia should be considered. ... 3 To date, only 2 case reports of bacteremia caused by P pentosaceus have been described in the literature. This study is the first to report enterococcus as a predictor of treatment failure in complicated intraabdominal infections. In our case, the infiltrated by the extra-gastrointestinal stromal cell tumor ruptured colon was the source of the infection. This review provides information on Lactobacillus, Lactococcus, Leuconostoc, Pediococcus, Carnobacterium, and Enterococcus. The association of pediococcal isolates with human infections has recently been described, but their identification in the clinical laboratory can be incorrect due, in part, to difficulties in dif-ferentiating them from physiologically similar bacteria (4, 10, 19). This would appear to be the first reported case of P. pentosaceus septicaemia. The rise in the minimal inhibitory concentrations of Staphylococcus aureus to vancomycin may become a threat. Some lactic acid bacteria and bifidobacteria are common inhabitants of the human gut, and they are believed to hold strong link to a healthy gastrointestinal tract by exhibiting probiotic functions. In addition, effects of LAB on feed preparation and animal production are described and reviewed. Pediococcus pentosaceus and Pediococcus acidilactici are the dominant species isolated from dairy products. Bacteremia with Pediococcus pentosaceus has only been described twice previously. Recovery of vancomycin-resistant Gram-positive cocci from pediatric liver transplant recipients, Septicemia caused by vancomycin-resistant Pediococcus acidilactici, Swenson JM, Facklam RR, Thornsberry C.. Antimicrobial susceptibility of vancomycin-resistant Leuconostoc, Pediococcus, and Lactobacillus species. Erythromycin resistance has been found in a minority of isolates; as yet, there have been not reported use of his drug … These differences are statistically significant (P < 0.05) and indicate that P. acidilactici is more likely to be associated with bacteremia than P. pentosaceus. Laparotomy revealed purulent peritonitis caused by infiltration and rupture of the splenic flexure by the tumor. None of the organisms were resistant to imipenem, minocycline, The organisms were all highly resistant to vancomycin and cefoxitin. Despite in vitro susceptibility to daptomycin, limited clinical data are available on the use of this agent to treat infections caused by Pediococcus. Pediococcus pentosaceus has been isolated from tonsils and the nasal cavity of piglets. Despite prompt intervention the patient died 19 days later. 2 0 obj Antibiotic resistance (AR) genes in this species are a matter of concern for treating clinical infections. halophilus and the type strain of E. solitarius. This plasmid was structurally distinct from two enterococcal MLS resistance plasmids, pIP819 and pAM beta 1. For practical purposes we recommend that only a strong, clear-cut, color change should be interpreted as a positive reaction. In this case, a polyphasic approach consisting of phenotypic and molecular genetic analyses was used, and the identification of Pediococcus acidilactici was conclusive. Over a 43-month period, 23 separate isolates of nonenterococcal alpha- and nonhemolytic streptococci were reported by our clinical microbiology laboratory to be resistant to vancomycin. Substrates were dissolved in 0.067 M Sorensen buffer (Na2HPO4 and KH2PO4) at pH 8.0 to a final concentration of 0.1%. Lanes 1 and 19, molecular size markers (in kilobases, lambda DNA concatemers ranging from 48.5 to 1,018.5 kb); lanes 2 to 19, clinical isolates ofP. Strains.A total of 72 strains isolated from human clinical sources (32 from blood, 11 from stool, 5 from peritoneal fluid, 5 from urine, 4 from wounds, 3 from abscesses, 3 from catheters, 2 from bone infections, 1 from cerebrospinal fluid, 1 from liver biopsy, 1 from vaginal secretion, and four strains from unknown sources) between 1977 and 1996 were retrieved from the culture collection of theStreptococcus Laboratory, Centers for Disease Control and Prevention (CDC) and included in the present study. pentosaceus (three strains). The results showed the utility Among the atypical strains (sucrose positive), the twoP. One maltose-positive strain (1259-87), identified as P. acidilactici by WCPP and confirmed by DNA-DNA hybridization experiments (data not shown), had typical negative reactions in all chromogenic substrates. Significant differences (P < 0.05) were only observed between rates of isolation of P. acidilactici (28 of 54 isolates; 51.8%) andP. There are many Pediococcus strains that produce pediocin, an effective antilisterial bacteriocin. Swenson JM, Facklam RR, Thornsberry C (1990) Antimicrobial suscept-ibility of vancomycin-resistant Leuconostoc, Pediococcus, and Lacto-bacillus species. We present a case of a urinary tract infection secondary to Pediococcus pentosaceus causing septic shock and acute kidney injury in a 70-year-old male. Protein profiles of the type strains of the different species were compared according to their percentages of similarity estimated by the Dice coefficient and clustered by the unweighted pair group method with averages (UPGMA) by using the Molecular Analyst Fingerprinting Plus software package, version 1.12, of the Image Analysis System (Bio-Rad Laboratories, Hercules, Calif.). When disk diffusion results were Pediococcus species has emerged as an opportunistic pathogen in immunocompro-mised patients. Eighty-six isolates were recovered from 36 of the 49 patients. Of the eight species of the genus Pediococcus currently recognized , only Pediococcus acidilactici and P. pentosaceus have been described as human pathogens causing septicemia, hepatic abscesses, and bacteremia (2, 3, 5, 8). The patient was initially treated with debridement and fasciotomy of the anterior abdominal wall.

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27. listopada 2020 by
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