Publications by authors named "Ozlem Cakici"

Article Synopsis
  • Vaccines have significantly reduced COVID-19 hospitalizations among adolescents in Turkey, evidenced by a decline in hospitalizations during the vaccination period compared to pre-vaccination.
  • The study revealed that while there were more total hospitalizations during the vaccination period, the proportion of vaccinated adolescents requiring hospitalization was lower, reflecting the effectiveness of the vaccine.
  • Additionally, breakthrough infections in vaccinated adolescents were generally milder and less severe compared to infections in unvaccinated peers, with many being asymptomatic.
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Article Synopsis
  • The study investigates multisystem inflammatory syndrome in children (MISC) related to COVID-19, focusing on comparing clinical and laboratory characteristics of children hospitalized in ICU versus those who were not.
  • Conducted from June 2021 to January 2022, the observational study included 601 patients, with 157 requiring ICU care, revealing significant differences in demographics, lab results, and disease features.
  • Key findings showed that older age groups and higher levels of certain inflammatory markers increased the likelihood of ICU admission, highlighting the severe impact of MISC on children's health.
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Background: In the first half of 2022, the increase in cases of severe acute hepatitis in children with no epidemiological link and unknown cause has aroused concern worldwide. In this study, we aimed to determine the frequency of adenovirus in children with hepatitis of unknown origin in Turkey.

Methods: In this study, which was conducted with the participation of 16 centers from Turkey, between July 2022 and January 2023, 36 pediatric patients under the age of 18 who met the definition of acute hepatitis were included.

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Neonicotinoids are the most widely used pesticide compared to other major insecticide classes known worldwide and have the fastest growing market share. Many studies showed that neonicotinoid pesticides harm honeybee learning and farming activities, negatively affect colony adaptation and reduce pollination abilities. Bumblebees are heavily preferred species all over the world in order to ensure pollination in plant production.

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Neonicotinoids harm especially bumblebees and other species in agricultural areas all over the world. The toxic effect of thiamethoxam from the neonicotinoid group has been little studied especially on bees. This research aimed to evaluate the effects of thiamethoxam on the immune system cells of Bombus terrestris workers.

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Background: Although it was originally unknown whether there would be cases of reinfection of coronavirus disease 2019 (COVID-19) as seen with other coronaviruses, cases of reinfection were reported from various regions recently. However, there is little information about reinfection in children.

Methods: In this study, we aimed to investigate the incidence and clinical findings of reinfection in pediatric patients who had recovered from COVID-19.

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Introduction As in many other countries, healthcare workers (HCWs) have been identified as the priority group for vaccination in Turkey for they are in close contact with not only patients with COVID-19 to whom they provide treatment but also asymptomatic individuals with COVID-19 infection while inoculating COVID-19 vaccines. As a result of this prioritization, they will always be in the limelight and regarded as role models for personal and parental acceptance of COVID-19 vaccines. Methods Turkish healthcare workers (n=1,808) were contacted and invited to fill out an online questionnaire between December 27, 2020, and January 14, 2021, in order to reveal their approaches to COVID-19 vaccines and vaccination.

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Article Synopsis
  • The study investigates multisystem inflammatory syndrome in children (MIS-C), which can lead to severe complications or death, focusing on cases from 25 hospitals in Turkey between April and October 2020.
  • It analyzed the medical records of 101 patients, primarily aged 7, finding high rates of fever, fatigue, and gastrointestinal issues, with significant laboratory abnormalities and a notable proportion requiring intensive care.
  • The research underscores the importance of recognizing MIS-C, especially in previously healthy children presenting with persistent fever and other symptoms; most were treated effectively with immunomodulatory therapies, though there were reported fatalities.
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Unlabelled: Multisystemic inflammatory syndrome (MIS-C) diagnosis remains difficult because the clinical features overlap with Kawasaki disease (KD). The study aims to highlight the clinical and laboratory features and outcomes of patients with MISC whose clinical manifestations overlap with or without KD. This study is a retrospective analysis of a case series designed for patients aged 1 month to 18 years in 28 hospitals between November 1, 2020, and June 9, 2021.

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In this study, it was aimed to determine secretory cell types using histochemical properties of secretory cells and epidermis histology in the body wall of two medicinal leech species, Hirudo verbana and Hirudo sulukii. In addition, areas of epidermis epithelial cells, secretory cell types, and secretion areas of secretory cells stained with histochemical stains were statistically compared in both species. Epidermis is composed of single layer of cylindrical epithelium and secretory cells.

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This study describes the histopathological effects of carbaryl in the spleen of Levantine frog, Pelophylax bedriage. Due to its primary role in immune system, it is important to research the toxic effects of pesticides, which play an important role in environmental pollution, on spleen. To that end, adult frogs were exposed to carbaryl for 96 h.

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Due to the negative effects of pesticide usage in environment, i.e., decline in amphibian populations, this study was designed to examine histopathologic changes following carbaryl exposure for 96 h in the digestive tract of variable toad, Bufotes variabilis.

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The purpose of this work was to investigate for the first time histopathologic effects of carbaryl in liver and kidney tissues of Bufotes variabilis. After 96h following exposure to carbaryl (low dose: 0.05, medium dose: 0.

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Objective: To examine sublethal toxic effects of propanil on liver and kidney of albino Swiss mice, Mus musculus.

Study Design: Different doses of propanil (75, 150, and 300 mg/kg) were administered to determine histologic defects on liver and kidney tissues of mice for 30 consecutive days. Biometric analyses (area measurements of hepatocyte/nucleus and glomerulus/renal corpuscle) were also conducted to determine whether there were statistical differences in these end points.

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In this study, histopathologic changes following carbaryl exposure for 96 hr were investigated in the digestive tract of Levantine frog, Pelophylax bedriagae. Adult frogs were exposed to carbaryl once by oral gavage in concentrations of 0.05, 0.

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The aim of the study was to investigate for the first time histopathologic effects of carbaryl on the testes of adult frog, Pelophylax bedriagae. Frogs were exposed to carbaryl once by oral gavage in concentrations of 0.05, 0.

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Objective: To determine the sublethal toxic effects of diazinon on liver and kidney tissues of Swiss albino mice.

Study Design: Mice were exposed to different concentrations (30, 60, and 120 mg/kg) of diazinon through oral administration for 30 consecutive days. Biometric analyses (area measurements of histologic structures) of some histopathological changes were evaluated by measuring the areas of hepatocyte/nucleus in the liver and the areas of glomerulus and renal corpuscle in the kidney.

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We examined the effects of carbaryl in the digestive system of Ophisops elegans. Lizards were exposed once to different concentrations of carbaryl (2.5, 25 and 250 μg/g).

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Background, Aim And Scope: Due to their ecological niche and insectivore nature, lizards are of increased risk of exposure to pesticides in agricultural areas. In addition to their potential direct effects on non-target species, insecticides can also result in indirect impacts on lizard population by reducing their food source. Carbaryl is a common insecticide that is widely used in areas of Turkey that are home to a variety of reptiles.

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Increasing resistance due to extended-spectrum beta-lactamases (ESBLs) and multiple resistance mechanisms in gram-negative hospital isolates restrict the role of beta-lactam antibiotics in empirical treatment of serious infections. As the prevalence of ESBL producing strains and resistance rates to antimicrobial agents can vary in each center, local surveillance studies are required to guide therapy. In this study, in vitro rates of resistance to ceftriaxone, ceftazidime, cefepime, imipenem, cefoperazone/sulbactam and piperacillin/tazobactam were evaluated in 1196 gram-negative hospital isolates in a multicenter in vitro study with the participation of six different centers in Turkey between the period of June 2004-January 2005.

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Species of Bacteroides fragilis group bacteria are the most prevalent pathogens and have the highest resistance rates to antimicrobial agents among anaerobic bacteria. Infections due to these micro-organisms often originate from patient's own intestinal microbiota. The objective of the study was to determine and compare the susceptibility profiles of clinical and intestinal B.

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The objectives of the study were to investigate and compare the susceptibility profiles of preoperative and postoperative intestinal Bacteroides fragilis and Bacteroides thetaiotaomicron strains against antimicrobials to evaluate their resistance development patterns due to prophylactic antibiotic administration. Preoperative and postoperative stool samples were obtained from patients undergoing elective abdominal surgery with a "clean-contaminated" wound categorization. All patients received cefoxitin 2 g as prophylaxis.

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