Publications by authors named "K Petraki"

Background And Aims: Helicobacter pylori (H. pylori)-induced gastric pathology involves remodeling of extracellular matrix mediated by aberrant activity of matrix metalloproteinases (MMPs). We have previously shown that in vitro H.

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Nivolumab, an anti-PD-1 check point inhibitor, is an immunotherapeutic agent, representing a major step in the treatment of melanoma. However, its use is associated with severe toxicities. Among them, gastrointestinal (GI) disorders from the lower GI tract have been widely reported.

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At high altitude conditions, the low-pressure atmospheric oxygen reduces the generation of energy, thus inducing a decrease in oxygen availability. As a result, endurance flights evoke imbalance in redox signaling, posing a safety risk for the pilots involved. The aim of the present study was to assess changes in the redox status of military pilots during flight simulation conditions according to their flight hours (experts vs.

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Background: Dose-dense sequential chemotherapy with anthracyclines and taxanes achieved an 18% reduction of recurrence risk in early breast cancer (BC). The optimal chemotherapy schedule and interval between cycles remain under investigation.

Methods: Overall, 990 patients were randomised to receive either three cycles of epirubicin (E, 110 mg/m) every 2 weeks followed by 3 cycles of paclitaxel (T, 200 mg/m) every 2 weeks followed by three cycles of intensified CMF (Control Arm A, E-T-CMF) that was previously used in BC or three cycles of epirubicin followed by three cycles of CMF followed by nine consecutive weekly cycles of docetaxel (wD) 35 mg/m (Arm B, E-CMF-wD) or nine consecutive weekly cycles of paclitaxel (wT) 80 mg/m (Arm C, E-CMF-wT).

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Article Synopsis
  • A 72-year-old woman with metastatic melanoma showed significant regression of skin nodules after her second dose of the Pfizer-BioNTech COVID-19 vaccine.
  • Two days post-vaccination, the nodules became painful and shrank noticeably, a change confirmed by physical exams and ultrasound.
  • Histopathological analysis revealed key differences between the reduced nodule and an earlier one, particularly the lack of infiltrating lymphocytes in the reduced nodule, suggesting the vaccine may stimulate immune responses that help combat cancer.
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