Publications by authors named "Oguzhan Zengin"

BACKGROUND Shiga toxin-producing Escherichia coli (STEC) causes serious bacterial illnesses from consuming undercooked meat and foods contaminated with feces. This study aimed to describe the characteristics of an STEC outbreak associated with hemolytic uremic syndrome (HUS) that emerged in Turkey and affected 21 adults. MATERIAL AND METHODS The medical records of 21 adult patients who were admitted to Ankara Bilkent City Hospital Internal Medicine Intensive Care Department with the diagnosis of HUS between July and September 2022 were retrospectively evaluated through the system.

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A 25-year-old female patient was admitted to the hospital with abdominal pain, loss of appetite, and weight loss for the last 5 months. The patient underwent paracentesis five times and was referred to our clinic after peritonitis findings were detected. Tubal tuberculosis was detected during her hospitalization.

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The immunogenicity of vaccines decreases over time, causing a need for booster doses. This study aimed to present the long-term (Day 84) immunogenicity results of the double-blind, randomized, controlled, phase II Hybrid COV-RAPEL TR Study (NCT04979949), in which the TURKOVAC or CoronaVac vaccines were used as a booster after the second dose of primary vaccination with CoronaVac. A total of 190 participants from the Hybrid COV-RAPEL TR Study, who had both Day 28 and Day 84 immunogenicity results, were included.

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Protective neutralizing antibody titers reduce in time after COVID-19 vaccinations, as in individuals who have had COVID-19. This study aimed to evaluate the safety and immunogenicity of CoronaVac and TURKOVAC vaccines used as a booster dose after CoronaVac primary vaccination. This double-blind, randomized, controlled, phase II, multicenter study included healthy male and female adults (18-60 years) who were vaccinated with two doses of CoronaVac vaccine and did not exceed the duration of at least 90 days and a maximum of 270 days from the second dose of vaccination.

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COVID-19 has been studied extensively for its direct effects on healthcare workers. Despite this, very little is known about the effect of COVID-19 fear on future orientation. Studying medical social workers' fear of being infected with COVID-19 and their future orientation was the primary method used to examine this relationship.

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In this study, we aim to evaluate the presence of endothelial dysfunction in Gilbert syndrome patients with left ventricular mass index (LVMI) and endocan levels. The study included 60 patients who diagnosed with Gilbert syndrome and 60 healthy controls who did not have any known diseases. Human endocan levels were measured using a sandwich ELISA method.

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Purpose: This study aimed to reveal the effects of discrimination perceived by Turkish immigrants on their mental health.

Design And Methods: The participants of this pilot study were 111 Turkish immigrant patients treated at the Neuro-Psychiatrisches Zentrum Riem.

Findings: The preliminary findings illustrated that perceived individual discrimination was significantly correlated with three coping strategies, namely, substance use, friend support, and personal support.

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In this study, we aimed to investigate whether degree of pneumonia and COVID-19 prognosis are associated with serum endocan levels at the early stage, when vascular damage has started. Patients between the ages of 18-85 years who were hospitalized and followed up with a diagnosis of COVID-19 were included in the study. A total of 80 patients were divided into 2 groups as mild/moderate pneumonia and severe pneumonia.

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