Our results suggest that an increased MDA level at the time of initial surgery is found in patients with a high risk of recurrence, which suggests that each patient can be categorized according to risk of recurrence based on their MDA level at the time of initial surgery.

Escherichia coli O157:H7 is well known enterohemorrhagic pathogen responsible for infections among animals including a man. The main source of this bacterium is cattle, that is mostly asymptomatic and through that E. coli O157:H7 can simple transfer to food products. Therefore, there is a need for rapid, sensitive and specific detection method. The present work is focused on its detection by a heptaplex polymerase chain reaction, which targets genes from known virulent regions of E. coli O157:H7. According to obtained results this approach is able to reach the detection sensitivity of 4 colony-forming units (CFU) from a culture and 6 and 8 CFU from milk and meat samples, respectively, independently of tested sample volume.

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