Lactococcus lactis: un pathogène opportuniste?

Mofredj, A.; Bahloul, H.; Chanut, C.

doi:10.1016/j.medmal.2007.01.005

Cited by 16 publications

(6 citation statements)

References 79 publications

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“…Recently, Lc. lactis has been isolated from diseased fish (Wang et al, 2008;Chen et al, 2012;Pérez et al, 2011), bovine mastitis cases (Wyder et al, 2011;Romero et al, 2011, Plumed-Ferrer et al, 2013, Werner et al, 2014, bird infections (Goyache et al, 2001), and many human clinical infections (Mofredj et al, 2007;Uchida et al, 2011). Isolates from the genus Lactococcus are often misidentified as enterococci or streptococci, and the difficulties in correctly identifying them have probably hindered elucidation of their clinical significance (Goyache et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial susceptibilities and random amplified polymorphic DNA-PCR fingerprint characterization of Lactococcus lactis ssp. lactis and Lactococcus garvieae isolated from bovine intramammary infections

Plumed-Ferrer

Barberio

Franklin‐Guild

et al. 2015

Journal of Dairy Science

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In total, 181 streptococci-like bacteria isolated from intramammary infections (IMI) were submitted by a veterinary clinic to Quality Milk Production Services (QMPS, Cornell University, Ithaca, NY). The isolates were characterized by sequence analysis, and 46 Lactococcus lactis ssp. lactis and 47 Lactococcus garvieae were tested for susceptibility to 17 antibiotics. No resistant strains were found for β-lactam antibiotics widely used in clinical practice (penicillin, ampicillin, and amoxicillin), and all minimum inhibitory concentrations (MIC) were far from the resistance breakpoints. Eight strains had MIC intermediate to cefazolin. The random amplification of polymorphic DNA (RAPD)-PCR fingerprint patterns showed a slightly higher heterogeneity for Lc. lactis ssp. lactis isolates than for Lc. garvieae isolates.

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Section: Introductionmentioning

confidence: 99%

Antimicrobial susceptibilities and random amplified polymorphic DNA-PCR fingerprint characterization of Lactococcus lactis ssp. lactis and Lactococcus garvieae isolated from bovine intramammary infections

Plumed-Ferrer

Barberio

Franklin‐Guild

et al. 2015

Journal of Dairy Science

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“…In the previously reported cases, therapeutic regimen mostly based on the result of susceptibility tests. Available limited studies reported that they show a natural resistance to the aminoglycosides and no resistance to vancomycin [21,22]. We used vancomycin as therapeutic agent and the patients recovered completely.…”

Section: Resultsmentioning

confidence: 99%

Lactococcus lactis spp lactis infection in infants with chronic diarrhea: two cases report and literature review in children

Karaaslan

Soysal

Kadayıfçı

et al. 2016

J Infect Dev Ctries

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Lactococcus lactis is a gram-positive, facultative anaerobic coccus that is occasionally isolated from human mucocutaneous surfaces such as the intestines. It is used in the dairy industry for milk acidification and is mostly nonpathogenic in immunocompetent humans, however a number of cases of infection with L. lactis have been reported in recent years. In this article, we describe two cases of infection due to L. lactis in patients with chronic diarrhea. The first case is a five-month-old boy who was operated on for volvulus on his first day of life and had ileostomy with subsequent diagnosis of chronic diarrhea and bacteremia due to L. Lactis. The second case is a six-month-old girl with the diagnosis of chronic diarrhea that developed after a catheter-related bloodstream infection. Both of the infections due to L. Lactis spp lactis were successfully treated with intravenous vancomycin therapy. Although Lactococcus species is mostly known as nonpathogenic, it should be kept in mind as a potential pathogen, especially in patients with gastrointestinal disorders.

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“…These cases of infection most often affect non-immunocompetent people [32]. Some authors report natural resistance to aminoglycosides [37,38]. However, the origin and mechanism of the contamination are not yet well known.…”

Section: Discussionmentioning

confidence: 99%

Characterization and Antimicrobial Susceptibility of Lactococcus lactis Isolated from Endodontic Infections in Ouagadougou, Burkina Faso

et al. 2018

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Background: This study aimed to characterize and test the antimicrobial susceptibility of Lactococcus lactis isolated in endodontic infections in Burkina Faso. Material and methods: This was a prospective study conducted at the Municipal Oral Health Center of Ouagadougou, Burkina Faso, from June to October 2014. Clinical data were collected using a questionnaire form. The method of streaking on selective medium was used to isolate bacteria. Identification was made using the API 20 Strep gallery. Antibiotic susceptibility was performed by the diffusion method on solid medium. Results: One hundred and twenty-five (125) patients were received with a significant proportion from the age group of 19 to 40 years (55.2%). Apical periodontitis accounted for 50.4% and cellulitis for 49.6% of cases. Lactococcus lactis ssp. lactis was identified in five exudate samples. Isolates were 100% resistant to cefixime and metronidazole, 80% to ceftriaxone, cefuroxime, cefotaxime, chloramphenicol and 60% to penicillin G, amoxicillin, amoxicillin clavulanic acid. A multidrug resistance of more than three families of antibiotics was noticed. No strains produced extended spectrum ß-lactamases. Conclusion: Lactococcus lactis is part of endodontic biofilm. The reported strong antibiotic resistance involving endodontic therapy will focus on the effect of the disinfectant solution and the mechanical action of the canal instruments.

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Lactococcus lactis: un pathogène opportuniste?

Cited by 16 publications

References 79 publications

Antimicrobial susceptibilities and random amplified polymorphic DNA-PCR fingerprint characterization of Lactococcus lactis ssp. lactis and Lactococcus garvieae isolated from bovine intramammary infections

Antimicrobial susceptibilities and random amplified polymorphic DNA-PCR fingerprint characterization of Lactococcus lactis ssp. lactis and Lactococcus garvieae isolated from bovine intramammary infections

Lactococcus lactis spp lactis infection in infants with chronic diarrhea: two cases report and literature review in children

Characterization and Antimicrobial Susceptibility of Lactococcus lactis Isolated from Endodontic Infections in Ouagadougou, Burkina Faso

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