Publications by authors named "Oktem I"

The genus is composed of Gram-negative, fastidious, facultative intracellular bacteria that can cause bacteremia in mammals and various disorders in humans. Rodents have been reported as reservoirs of more than 30 species, seven of which cause zoonotic infections. In the present study, the isolation of sp.

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Introduction: To ensure the appropriate usage of ceftazidime-avibactam (CAZ-AVI), recently introduced in our hospital, we aimed to determine susceptibility rates, enzyme analysis, and clonal relationship among strains, together with clinical data.

Methodology: Between June 1 and September 30, 2021, demographic and microbiological data of the patients were recorded. In the obtained samples, meropenem and colistin minimal inhibitory concentration (MIC) levels, carbapenem resistance genes, and the clonal relationship were studied by molecular methods.

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Article Synopsis
  • Orthohantaviruses are significant public health threats, causing various diseases like hemorrhagic fever and hantavirus pulmonary syndrome, so monitoring wild rodents for these viruses is crucial for outbreak preparedness.
  • Researchers conducted a study from 2015 to 2017 in Southern Anatolia but found no evidence of orthohantavirus infections among the trapped rodents.
  • The study suggests that orthohantavirus presence may be influenced by climatic conditions, particularly precipitation and temperature, and emphasizes the need for further research on rodent surveillance in different regions.
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We report complete coding sequences of Orthohantavirus dobravaense (Dobrava virus) Igneada strains and phylogenetic characterization of all available complete coding sequences. Our analyses suggested separation of host-dependent lineages, followed by geographic clustering. Surveillance of orthohantaviruses using complete genomes would be useful for assessing public health threats from Dobrava virus.

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Aim: To demonstrate that decreased platelet count in patients with craniosynostosis increases the requirement for blood replacement, thus providing guidance to clinicians by revealing the time at which the platelet count decreases. Additionally, the relationship between the amount of blood transfusion and preoperative and postoperative platelet counts was evaluated.

Material And Methods: This study included 38 patients with craniosynostosis who underwent surgery between July 2017 and March 2019.

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Background: There is no standard treatment recommended at category 1 level in international guidelines for subsequent therapy after cyclin-dependent kinase 4/6 inhibitor (CDK4/6) based therapy. We aimed to evaluate which subsequent treatment oncologists prefer in patients with disease progression under CDKi. In addition, we aimed to show the effectiveness of systemic treatments after CDKi and whether there is a survival difference between hormonal treatments (monotherapy vs.

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Purpose: Chiari malformation type 1 (CM-1) is a posterior fossa anomaly characterized by herniation of the cerebellar tonsils from the foramen magnum (FM). This study compares FM, medulla spinalis (MS), and herniated cerebellar tonsils ratios by making area measurements from axial plane MRI in CM-1 patients and the control group.

Methods: Our study evaluated 30 pediatric patients with CM-1 and 30 people in the control group.

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Article Synopsis
  • Aminoglycosides (AGs) are increasingly used in combination therapies against carbapenem-resistant gram-negative bacteria, but their effectiveness is challenged by the spread of 16S rRNA methylases, which lead to high-level resistance.
  • This study investigates the discrepancies in susceptibility testing results for amikacin and gentamicin in Acinetobacter baumannii and Klebsiella pneumoniae isolates, evaluating different testing methods and the genetic factors involved.
  • The results indicate a correlation between the presence of certain methylase genes and false susceptibility results, highlighting discrepancies in automated testing systems compared to standard methods.
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Objective: West Nile Virus (WNV), which causes widespread outbreaks in different parts of the world, is a risk to public health in Turkey, too. Community-based study data are needed to identify measures against possible outbreaks. This study aimed to determine the seroprevalence of community-based WNV in Manisa and to investigate the relationship between sociodemographic and socioeconomic variables.

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Objectives: COVID-19 has seriously altered physicians' approach to patients and diseases, with a tendency to postpone elective procedures. Tonsillectomy, alone or with adenoidectomy, is one of the most common surgeries performed by otolaryngologists. Although they are generally accepted as elective surgeries, they significantly improve the quality of life, and postponing these surgeries for a long time can have deteriorative effects on the patients.

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Rodents play role as a reservoir for some Bartonella species which cause different clinical manifestations in humans. Bartonella spp. existence in rodents of Turkish Thrace has been detected for the first time, and the risky habitat types were evaluated for the infection.

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  • The study aimed to explore how bipolar electrocautery affects the development of epidural fibrosis after lumbar spine surgery in rats.
  • Fourteen male rats were divided into two groups: one group underwent laminectomy with bipolar electrocautery, while the control group had laminectomy only.
  • Results indicated that the group using bipolar electrocautery had significantly higher levels of TGF-β and collagen, suggesting increased epidural fibrosis compared to the control group, implying that reducing the use of bipolar cauterization may help lessen this issue.
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Background: Some of the hantavirus species in Euro-Asia cause haemorrhagic fever with renal syndrome (HFRS) in humans. The first documented human hantavirus infection in Turkey was diagnosed in 2009. This report describes the dynamics of the first hantavirus outbreak that emerged in humans in the Western Black Sea Region of Turkey.

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Orthohantaviruses (family Hantaviridae order Bunyavirales) are emerging pathogens with a significant impact on human health. They are transmitted via aerosolized excreta of rodents which also act as reservoir hosts, constituting a unique route for dispersion. Dobrava-Belgrade and Puumala orthohantaviruses have been previously reported from Anatolia, in rodents, case reports and occasional outbreaks.

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Background: Body region-dependent hair follicle (HF) characteristics are concerned with follicular size and distribution, and have been demonstrated to have characteristics for each region of the body.

Objectives: The aim of the present study was to investigate the expression patterns of the markers called cytokeratin 15 (K15), cytokeratin 6 (K6) and monoclonal antibody Ki-67, and also apoptosis in HFs, which can be observed in different parts of the human body.

Material And Methods: In this study, healthy human HFs were taken by biopsy from 5 various donor sites of the human body: the scalp, the leg, the abdomen, the back and waist.

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Vaccination is the most effective way of preventing pertussis disease. Turkey commenced a routine infant immunization program using whole cell (wP) pertussis vaccine in 1968. Immunization accelerated in 1985 after participation of Turkey in the Expanded Programme on Immunization initiated by the World Health Organization.

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We employed a direct metagenomic approach via next-generation sequencing for a cross-sectional investigation of viruses in 10 tick pools, collected from Aegean, Mediterranean and central Anatolian locations in Turkey. Sequences from all genome segments of Tamdy orthonairovirus (family Nairoviridae) were characterized in ticks collected from a Meriones tristrami. We further obtained near-complete L and partial S segments of several tick-associated phleboviruses (family Phenuiviridae), including Tacheng tick virus 2 and a novel virus, tentatively named as the tick phlebovirus Anatolia.

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Hantaviruses infect humans via inhalation of viral particles within secretions of infected rodents or rarely through direct contact with infected rodents. Determining the prevalence of hantavirus infections among rodent populations is of vital importance to obtain information on hantavirus-related cases and to predict possible outbreaks. We hypothesized that DOBV strains circulating in the Thrace Region in Turkey would be related to other Balkan DOBV strains.

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Article Synopsis
  • Barrel stave osteotomy is a common neurosurgical procedure for craniosynostosis patients, often resulting in unavoidable bleeding from the bones, highlighting a need for improved management techniques.
  • During a study involving 143 patients from 2005 to 2013, erythrocyte suspension was proactively administered to counteract potential blood loss, and post-operative monitoring of blood levels was crucial for ensuring patient safety.
  • The findings indicate that immediate replacement of blood losses is necessary in infants undergoing this surgery to maintain adequate hemoglobin and hematocrit levels postoperatively.
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Recently, in Turkey, there has been an increase in the number of violent acts against healthcare workers, towards doctors in particular. This study aimed to investigate the extent of violence, the causes of violence and to evaluate proposed solutions to violence. Out of 597 physicians, 86.

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In 2009, human Dobrava-Belgrade virus (DOBV) infections were reported on the Black Sea coast of Turkey. Serologic and molecular studies of potential rodent reservoirs demonstrated DOBV infections in Apodemus flavicollis and A. uralensis mice.

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Laboratory testing for viral hepatitis B constitutes a vast burden regarding the cost and the workload for health care system for many countries including ours. There are several reports stating that the cost in question is not always necessary. As a consequence of larger scale vaccination programmes, an increase in unnecessary hepatitis B testing is expected in vaccinated individuals.

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Objective: A prospective clinical follow-up study of patients who underwent thoracolumbar intraspinal surgery with replacement of the posterior spinal arch and supporting elements is reported.

Patients And Methods: The surgical procedures of 45 patients who underwent intraspinal surgery with osteotomy and replacement of 122 spinal laminae using an air drill and mini-plates with repair of the supraspinous ligaments were analyzed. Data of a complete clinical and radiological follow-up examination were evaluated in 45 patients.

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