Publications by authors named "Mustafa Demir"

Earthquakes are natural disasters that cause physical, psychological, social, and environmental damage. Due to the intense psychological impact, victims of earthquakes may associate a fatalistic approach with religion as a mechanism for seeking protection. The aim of this study was to determine the relationship between religious health fatalism and healthy lifestyle behaviors among earthquake victims.

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This study aims to evaluate the role of <50% stenotic cervical carotid artery plaques in embolic stroke of undetermined source (ESUS), focusing on plaque characteristics in symptomatic versus asymptomatic carotid arteries (contralateral). In this cross-sectional observational study, 81 patients who met the diagnostic criteria for ESUS and underwent were retrospectively analyzed. Carotid plaques causing <50% stenosis were examined, noting features such as plaque thickness, degree of luminal stenosis, irregularity, ulceration, calcification, and hypodensity.

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Introduction: Os odontoideum (OO) is a rare anatomic variant of the axis characterized by the separation of a part of the axis. It may cause cervical instability, atlantoaxial dislocation, myelopathy, or permanent paralysis. We present an extremely rare case of an OO with posterior atlantoaxial dislocation in a child.

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The selective extraction of lithium from aqueous systems necessitates efficient sorbent materials. Spinel-type lithium manganese oxide ion sieves (LMOs) have been bee recognized for their high performance in this application. However, the elevated market cost of the spinel form (λ-MnO) raises economic concerns, posing challenges to the feasibility of the extraction process.

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Transcription factors (TFs) are key players in eukaryotic gene regulation, but the DNA binding specificity of many TFs remains unknown. Here, we assayed 284 mostly poorly characterized, putative human TFs using selective microfluidics-based ligand enrichment followed by sequencing (SMiLE-seq), revealing 72 new DNA binding motifs. To investigate whether some of the 158 TFs for which we did not find motifs preferably bind epigenetically modified DNA (i.

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Article Synopsis
  • * This study focuses on using electrolytic manganese dioxide (γ-MnO), a cost-effective material, to extract lithium from the Tuzla Geothermal Power Plant in Turkey through a mini-pilot reactor setup.
  • * The research demonstrated effective lithium sorption/desorption, achieving up to 230 mg/L of lithium concentration after multiple cycles, while also confirming that the γ-MnO sorbent retains significant efficiency even after reuse.
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  • The study aimed to compare two surgical techniques for treating epiphora caused by punctal stenosis: canalicular triangular flap punctoplasty and triangular three-snip punctoplasty, using AS-OCT for assessment.
  • A total of 80 eyes from 43 patients were analyzed, with Group A (canalicular triangular flap) achieving a 100% anatomical success and 95% functional success, while Group B (triangular three-snip) achieved 75% anatomical and 77.5% functional success at 6 months.
  • The canalicular triangular flap technique was found to be more effective for both anatomical and functional outcomes compared to the three-snip method, highlighting the utility of AS-OCT for diagnosing and tracking punct
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Objective: Thyroid uptake test plays an important role in diagnosis, treatment planning and radioiodine dose determination in patients with hyperthyroidism. The aim of this study was to compare the % uptake values calculated with gamma camera and uptake probe after diagnostic 131I application in hyperthyroid patients.

Materials And Methods: In this study, % uptake values were measured using a thyroid uptake probe and gamma camera in 32 patients who underwent thyroid radioiodine uptake measurement in our Nuclear Medicine center.

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Article Synopsis
  • Fluoroscopic examinations, such as ERCP and PTC, are essential for diagnosing hepatobiliary diseases but expose patients to significant radiation, prompting a need to better assess radiation doses to critical organs.
  • The study used an Alderson RANDO phantom and Thermoluminescent Dosemeters to measure actual radiation exposure during these procedures, finding that PTC generally yields higher doses, particularly to the thyroid and spleen.
  • Results highlight the necessity of evaluating the risks versus benefits of these procedures due to the notable radiation exposure, suggesting a preference for ERCP when minimizing radiation is necessary, and advocating for continued improvements in medical imaging to enhance patient safety.
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Student leadership prepares students for responsibilities, such as taking on specific tasks and assuming leadership roles in their future personal and professional lives. Developing students' leadership profiles is among the important goals of educational systems aiming for future generations to take responsibility and advance their countries. With this perspective in mind, the PISA assessment includes items to measure students' leadership behaviors.

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Despite high rates of psychological symptoms, many medical students often avoid psychological help. Determining the mental status of medical students at an early stage is very important for developing necessary interventions. The aim of this study was to evaluate the barriers to seeking psychological help among first-year medical students.

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Aim: This study aimed to perform dosimetry in patients with metastatic prostate cancer treated with Lutetium (Lu) prostate-specific membrane antigen (PSMA)-617 radiopharmaceutical, calculating organ blood clearance and consequently determining the maximum tolerable treatment activity.

Materials And Methods: Eighteen patients with metastatic prostate cancer were enrolled in the study. Patients were administered 5.

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Severe aplastic anemia (SAA) is a life-threatening hematological disease characterized by the suppression of the bone marrow. Patients with SAA are predisposed to recurrent bacterial infections and invasive fungal infections (IFI) due to profound and persistent neutropenia. Mucorales are the second most common cause of IFI encountered in SAA.

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 Intracranial cavernous malformations (CMs), commonly known as cavernomas or cavernous angiomas, are low-flow, well-circumscribed vascular lesions composed of sinusoidal spaces lined by a single layer of endothelium and separated by a collagenous matrix without elastin, smooth muscle, or other vascular wall elements. A diameter greater than 3 cm for a CM is unlikely. These lesions may have atypical appearances on magnetic resonance imaging (MRI).

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This study provides a comprehensive evaluation of the occupational radiation exposure faced by healthcare professionals during Endoscopic Retrograde Cholangiopancreatography (ERCP) procedures. Utilizing an anthropomorphic RANDO phantom equipped with Thermoluminescent Dosimeters (TLDs), we replicated ERCP scenarios to measure radiation doses received by medical staff. The study meticulously assessed radiation exposure in various corresponding body regions typically occupied by medical staff during ERCP, with a focus on eyes, thyroid, hands, and reproductive corresponding organ regions.

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Article Synopsis
  • This study focuses on analyzing the CT and MR imaging characteristics of intracranial extra-axial chondromas in six patients, highlighting their distinct appearances based on location.
  • The researchers found that frontal chondromas typically showed calcification and mixed signals on imaging, while cavernous sinus chondromas displayed bone erosion and intense hyperintensity on T2-weighted images without calcification.
  • The study concludes that while there are various imaging features, specific traits like absence of restricted diffusion and distinct signal patterns can suggest the presence of an intracranial chondroma, aiding in diagnosis.
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Functional or non-secretory ectopic pituitary neuroendocrine tumors (PitNET) can form around the sella turcica during the development of the adenohypophysis by differentiating and detaching from the pharyngeal roof. These tumors usually appear in the sphenoid sinus, clivus, cavernous sinus, infundibulum, and suprasellar cistern. Ectopic PitNETs typically display the characteristic magnetic resonance imaging findings of pituitary adenomas.

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High-throughput transcriptomics is of increasing fundamental biological and clinical interest. The generation of molecular data from large collections of samples, such as biobanks and drug libraries, is boosting the development of new biomarkers and treatments. Focusing on gene expression, the transcriptomic market exploits the benefits of next-generation sequencing (NGS), leveraging RNA sequencing (RNA-seq) as standard for measuring genome-wide gene expression in biological samples.

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Introduction: The most important toxicity of transarterial radioembolization therapy applied in liver malignancies is radiation pneumonitis and fibrosis due to hepatopulmonary shunt of Yttrium-90 (Y) microspheres. Currently, Technetium-99m macroaggregated albumin (Tc-MAA) scintigraphic images are used to estimate lung shunt fraction (LSF) before treatment. The aim of this study was to create a phantom to calculate exact LFS rates according to Tc activities in the phantom and to compare these rates with LSF values calculated from scintigraphic images.

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Objective: Infantile myofibromatosis is a rare entity of childhood characterized by benign myofibroblastic tumors in the soft tissues, the bones, and occasionally the viscera. Solitary skeletal lesions are relatively uncommon. Calvarial involvement should be distinguished from more aggressive tumors for appropriate treatment.

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Objective: This study examines low-, medium-, and high-performing Human-Autonomy Teams' (HATs') communication strategies during various technological failures that impact routine communication strategies to adapt to the task environment.

Background: Teams must adapt their communication strategies during dynamic tasks, where more successful teams make more substantial adaptations. Adaptations in communication strategies may explain how successful HATs overcome technological failures.

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