Balance between beneficial microflora and Staphylococcus aureus colonisation: in vivo evaluation in patients with atopic dermatitis during hydrotherapy

2013 ◽  
Vol 23 (6) ◽  
pp. 786-794 ◽  
Author(s):  
Muriel Bourrain ◽  
Virginie Ribet ◽  
Audrey Calvez ◽  
Philippe Lebaron ◽  
Anne-Marie Schmitt
Allergy ◽  
2021 ◽  
Author(s):  
Mika Murai‐Yamamura ◽  
Sandra Garcet ◽  
Kazuhiko Yamamura ◽  
Juana Gonzalez ◽  
Shunsuke Miura ◽  
...  

1980 ◽  
Vol 6 (suppl A) ◽  
pp. 55-61 ◽  
Author(s):  
J. Klastersky ◽  
H. Gaya ◽  
S. H. Zinner ◽  
C. Bernard ◽  
J-C. Ryff ◽  
...  

Author(s):  
Yao Hu ◽  
Wen Zhou ◽  
Chengguang Zhu ◽  
Yujie Zhou ◽  
Qiang Guo ◽  
...  

Smoking is considered a key risk factor for implant survival; however, how it interacts with the pathogens in peri-implant infections is not clear. Here, we identified that nicotine, the key component of cigarette smoking, can interact with Staphylococcus aureus and synergistically induce peri-implant infections in a rat osteolysis model. The nicotine–S. aureus combination group increased the gross bone pathology, osteolysis, periosteal reactions, and bone resorption compared to the nicotine or S. aureus single treated group (p < 0.05). Nicotine did not promote the proliferation of S. aureus both in vitro and in vivo, but it can significantly upregulate the expression of staphylococcal protein A (SpA), a key virulence factor of S. aureus. The nicotine–S. aureus combination also synergistically activated the expression of RANKL (receptor activator of nuclear factor-kappa B ligand, p < 0.05) to promote the development of peri-implant infections. The synergistic effects between nicotine and S. aureus infection can be a new target to reduce the peri-implant infections.


1963 ◽  
Vol 118 (1) ◽  
pp. 13-26 ◽  
Author(s):  
P. F. Bartell ◽  
I. S. Thind ◽  
T. Orr ◽  
W. S. Blakemore

Staphylococcus bacteriophage 81 is capable of in vivo interaction with Staphylococcus aureus, Type 80/81. This is immediately made evident by increased levels of bacteriophage and concomitant survival of 81 per cent infected mice. The reaction is dependent upon the use of active, type-specific bacteriophage. The maximal protective effect is observed at a bacteriophage to bacteria ratio of 1:2 and decreased quantities of bacteriophage result in decreased protection. Time and sequence of administration are also determining factors. It is evident that bacteriophage administered intravenously is capable of interaction with the infecting bacterial cell at the site of infection. In vivo produced bacteriophage is apparently eliminated or otherwise rendered nondetectable fairly rapidly, occurring within a period of 5 to 10 days. However, it appears that host defense mechanisms are stimulated in the process and actively play a protective role against subsequent challenge inocula administered up to 3 weeks later.


2014 ◽  
Vol 58 (12) ◽  
pp. 7606-7610 ◽  
Author(s):  
Kaat De Cremer ◽  
Nicolas Delattin ◽  
Katrijn De Brucker ◽  
Annelies Peeters ◽  
Soña Kucharíková ◽  
...  

ABSTRACTWe here report on thein vitroactivity of toremifene to inhibit biofilm formation of different fungal and bacterial pathogens, includingCandida albicans,Candida glabrata,Candida dubliniensis,Candida krusei,Pseudomonas aeruginosa,Staphylococcus aureus, andStaphylococcus epidermidis. We validated thein vivoefficacy of orally administered toremifene againstC. albicans and S. aureusbiofilm formation in a rat subcutaneous catheter model. Combined, our results demonstrate the potential of toremifene as a broad-spectrum oral antibiofilm compound.


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