Skip to main content

Table 1 Total Sod activity of Staphylococcus aureus clinical isolates.

From: Superoxide dismutase is upregulated in Staphylococcus aureus following protoporphyrin-mediated photodynamic inactivation and does not directly influence the response to photodynamic treatment

S. aureus strain Strain response to PDIΔ Total Sod activity [U/mg of cell proteins]1 Total Sod activity [U/mg of cell proteins]2 Sod activity increase [× fold]
   Before PDI 3 After PDI 3 Before PDI 3 After PDI 3  
  MRSA      
472 S 1494 ± 517 492 ± 96 16.7 ± 10.4 66.6 ± 5.8 3.9
2002 R 2006 ± 312 1247 ± 154 41.8 ± 6.5 43.3 ± 5.2 1.0
80/0 S 1604 ± 404 680 ± 93 24.6 ± 6.2 113.4 ± 15.5 4.6
4246 R 1703 ± 720 1807 ± 591 11.6 ± 4.9 34.4 ± 10.3 2.9
  MSSA      
1397 R 2234 ± 235 1046 ± 48 32.8 ± 3.4 28.5 ± 0.86 0.8
7259 R 1957 ± 805 1375 ± 178 46.6 ± 19.2 42.3 ± 5.3 0.9
2288 S 3596 ± 427 3583 ± 488 27.8 ± 3.3 137.2 ± 14.2 4.9
5491 S 2070 ± 318 2426 ± 42 25.2 ± 3.9 86.5 ± 1.5 3.4
  1. 1- the given numbers are mean values of 3 measurements ± standard deviation, absolute values are given
  2. 2 - values normalized with respect to the number of c.f.u. (colony forming units)
  3. 3 - PDI - Photodynamic inactivation performed with 50 μM protoporphyrin IX, light dose of 12 J/cm2, 624 nm red light.
  4. MRSA - Multiresistant Staphylococcus aureus; MSSA - Multisensitive Staphylococcus aureus
  5. ΔS - sensitive, R - resistant