scholarly journals Staphylococcus epidermidis Forms Floating Micro-colonies in Platelet Concentrates at the Early Stage of Contamination

2009 ◽  
Vol 55 (5) ◽  
pp. 726-731 ◽  
Author(s):  
Yasuo Motoyama ◽  
Nobuyasu Yamaguchi ◽  
Mami Matsumoto ◽  
Tomoaki Ichijo ◽  
Hideto Nagumo ◽  
...  
Coatings ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 930
Author(s):  
Marco Consumi ◽  
Kamila Jankowska ◽  
Gemma Leone ◽  
Claudio Rossi ◽  
Alessio Pardini ◽  
...  

In the present study, the early stage of bacteria biofilm formation has been studied as a function of different nutrients. Infrared spectra of Pseudomonas fluorescens (PF) and Staphylococcus epidermidis (SE), on germanium ATR crystal, were collected under deionized water H2O, phosphate buffered solution (PBS) and PBS with glucose (PBS-G). In H2O, protein bands of PF increased while, no difference in PBS and PBS-G were observed until 135 min. SE strain showed a low sensitivity to PBS composition starting to expose proteins on surfaces after 120 min. SE shows a low polysaccharides increase in H2O while, in bare and enriched PBS their intensity increases after 120 and 75 min. in PBS and PBS-G respectively. PF exhibits a peculiar behavior in H2O where the saccharide bands increased strongly after 100 min, while under all the other conditions, the intensity of polysaccharide bands increased up to the plateau probably because the layer of the biofilm exceeded the penetration capability of FTIR technique. All data suggest that, under lack of nutrients, both the bacteria tend to firmly anchor themselves to the support using proteins.


2019 ◽  
Vol 12 (6) ◽  
pp. e229588
Author(s):  
Vimal Kumar ◽  
Vaibhav Deorari ◽  
Shekhar Swaroop ◽  
Ashutosh Biswas

Dengue fever is known for its life-threatening complications of bleeding and capillary leak syndrome. We report an unusual complication of dengue fever causing panophthalmitis, leading to rapidly progressive painful visual loss within days. Later on, the patient developed secondary bacterial infection of the eyeball and developed multiple brain abscesses due to spread of infection from the eyeball. Culture from pus swab of the right eye grew Staphylococcus epidermidis. The patient was promptly treated with broad spectrum antibiotics and after stabilisation, evisceration of the affected eye was done. Supportive therapy in the form of mechanical ventilation in view of poor sensorium, platelet transfusions for thrombocytopenia and guided fluid therapy was also provided. After multiple challenges in the management of the patient, fortunately, the patient survived but we failed to save his right eye. Therefore, it is necessary to carefully examine all vital organs at an early stage to prevent unfortunate outcome.


2018 ◽  
Vol 67 (2) ◽  
pp. 190-197 ◽  
Author(s):  
Mariam Taha ◽  
Carissa Kohnen ◽  
Shruti Mallya ◽  
Yuntong Kou ◽  
Adriana Zapata ◽  
...  

2020 ◽  
Vol 151 ◽  
pp. 111993 ◽  
Author(s):  
Guangyuan Li ◽  
Yifan Wu ◽  
Yuxuan Li ◽  
Yuzhi Hong ◽  
Xilin Zhao ◽  
...  

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