Publications by authors named "O Witzke"

Purpose: Urinary tract infections (UTIs) are common complications after kidney transplantation (KT), often resulting in severe outcomes like acute graft failure and sepsis. Factors such as diabetes, age, sex, and type of transplantation significantly influence disease progression. Rising antibiotic resistance complicates treatment, emphasizing the importance of Antimicrobial Stewardship (AMS), particularly during the post-transplant immunosuppression phase.

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Vaccinations are an important preventive measure against viral diseases and have saved many lives since their introduction. Nowadays, any doctor can administer a vaccination. Patients with chronic diseases should be vaccinated according to indications.

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HLA-G, an important immune-checkpoint (IC) molecule that exerts inhibitory signalling on immune effector cells, has been suggested to represent a key player in regulating the immune response to Severe Acute Respiratory Syndrome Coronavirus Type 2 (SARS-CoV-2). Since specific single-nucleotide polymorphisms (SNP) in the HLA-G 3'untranslated region (UTR), which arrange as haplotypes, are crucial for the regulation of HLA-G expression, we analysed the contribution of these genetic variants as host factors in SARS-CoV-2 infection during acute and post-acute phases. HLA-G gene polymorphisms in the 3'UTR were investigated by sequencing in an unvaccinated Coronavirus Disease 2019 (COVID-19) cohort during acute SARS-CoV-2 infection (N = 505) and in the post-acute phase (N = 253).

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Background: In the phase 3 SOLSTICE study (NCT02931539), maribavir was superior to investigator-assigned therapy (IAT) for confirmed cytomegalovirus viremia clearance at study week 8 in hematopoietic cell/solid organ transplant (HCT/SOT) recipients. We report additional efficacy and safety analyses from the SOT subgroup.

Methods: Eligible SOT recipients (n=211) received maribavir 400 mg twice daily (n=142) or IAT (n=69) for 8 weeks (12 weeks' follow-up).

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