Publications by authors named "Guelbin Konakcı"

Serpentine soils containing high levels of nickel and other metals are particularly preferred by some plants that accumulate nickel in their bodies. In this study, the Ni, Co, and Cr accumulation capacities of A. murale grown in Guleman's serpentine soils were measured.

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Article Synopsis
  • This study aimed to determine which technique (standard, ultrasonography (USG), or near-infrared light (NIR)) was most effective for successfully placing a peripheral intravenous catheter (PIVC) on the first attempt in patients with difficult vascular access (DVA).
  • Results showed that the first attempt success rate was highest with USG at 78.9%, compared to 62.2% for standard methods and 58.9% for NIR methods.
  • Though USG had the highest success rate, it also took the longest to perform, suggesting a trade-off between time and immediate success when accessing veins in DVA patients.
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Purpose: This study aimed to determine the level of secondary traumatic stress in nurses (n = 205) working with patients with suspected or confirmed COVID-19 in Turkey.

Design And Methods: Data were collected using the personal information form and Secondary Traumatic Stress Scale.

Findings: Of the total sample, 62% were female and 52% of nurses were in the 20- to 30-years age range.

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Background And Object: The object of this study is to analyze the complementary and alternative treatments for the prevention of COVID-19/Coronavirus in the Turkish news.

Material And Method: The sample of this descriptive study consisted of 160 news articles published between 11 March and 11 April 2020 on the websites of the three highest-circulating newspapers throughout the nation. A quantitative media context analysis method, consisting of 14 questions and 2 sections was employed to evaluate news on the newspapers.

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Objectives: This study was carried out as a methodological study to adapt the stressor scale for emergency nurses to Turkish and to test its validity and reliability.

Materials And Methods: Data were collected between April 2019 and December 2019 from 250 emergency nurses working in the emergency department of two different universities and two state hospitals. The scale was reapplied to 40 emergency nurses from the sample group 3 weeks after the first application.

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Objectives: The study was done experimentally to test the effect of diabetes on body mass index (BMI), low-density lipoprotein (LDL), high-density lipoprotein (HDL), systolic blood pressure, diastolic blood pressure, fasting blood glucose and postprandial blood glucose.

Methods: In the randomization performed, with 80 percent power, 80 people with Type 2 diabetes were found to be suitable for sampling. Personal data forms were filled in by conducting a face-to-face interview with both the experimental and control groups for randomization purposes.

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Many new features have recently been incorporated to ÇEDD Çözüm/Child Metrics, an online and freely accessible scientific toolset. Various auxological assessments can now be made with data of children with genetic diseases (Prader Willi syndrome, Noonan syndrome, Turner syndrome, Down syndrome, and Achondroplasia) and preterm and term newborns. More detailed reports for height, weight, and body mass index data of a given child are now available.

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Purpose: To date, application of intraoperative magnetic resonance imaging (ioMRI) to enhance surgical quality for spinal intramedullary neoplastic lesions has been rarely reported. Moreover, in developing countries or regions, ioMRI accessibility remains very limited. This report describes a technology design of high-field ioMRI accessible for multioperation rooms via a case presentation of an imaging-assisted surgical excision of human cervical spinal cord diffuse glioma.

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Foot drop is an inability to dorsiflex the ankle and toe. Primary causes of foot drop are compression or lesion of the 5th lumbar nerve and entrapment of the peroneal nerve at the head of the fibula. Rarely, some central nervous system lesions lead to foot drop.

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Purpose: Pain management following posterior spinal fusion surgeries is a challenging topic. Continuous epidural analgesia (CEA) technique has been invented to resolve some deleterious effects related with conventional intravenous patient-controlled analgesia (IV-PCA) method. However, studies for effectiveness and safety of CEA are scarce in adult population.

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Background: Cannulation, cross clamping, or partial clamping of the aorta during a proximal anastomosis may cause embolic complications in patients with severely atherosclerotic (porcelain) aortas. These patients carry high morbidity and mortality risks due to intraoperative atheroembolism.

Methods: Between June 2008 and May 2010, 972 open heart surgery operations were performed in our department.

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In recent years, tuberculosis has re-emerged as a serious public health problem, raising the possibility that tuberculous eye disease may also have become more prevalent. Ocular tuberculosis usually occurs in apparently healthy individuals. It is rarely observed in patients with active pulmonary disease.

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Purpose: This study aims to complement the authors' prior findings on palisade endings in extraocular muscles (EOMs) of monkeys, and to clarify whether palisade endings are cholinergic motor or cholinergic sensory.

Methods: Macaque monkeys (Macaca fascicularis, n = 10) of both sexes were analyzed using three-dimensional (3D) reconstructions, confocal laser scanning microscopy (CLSM), and conventional/immuno transmission electron microscopy (TEM). For CLSM, we used three combinations of triple fluorescent labeling.

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Background: alpha(2)-Adrenoceptor agonists administered into the intrathecal and epidural space have been found to be effective in the treatment of chronic pain. Moreover, it was shown that they increase the analgesic effects of local anaesthetics and provide sedation, anxiolysis and haemodynamic stability. Dexmedetomidine, a potent and highly selective alpha(2)-adrenoceptor agonist, is in current clinical use, particularly in the intensive care unit.

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Osteoblasts and osteocytes derive from the same precursors, and osteocytes are terminally differentiated osteoblasts. These two cell types are distinguishable by their morphology, localization and levels of expression of various bone cell-specific markers. In the present study on the chicken femur we investigated the properties of the mesenchymal cells within cartilage canals on their course into the secondary ossification centre (SOC).

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Objective: The aim of this study was to describe rabies suspected animal bites and post-exposure prophylaxis (PEP) practices in Narlidere District in Turkey between 1999 and 2001.

Methods: One thousand five hundred and sixty-nine rabies suspected bite cases reported were identified from the District's rabies surveillance forms.

Results: Males comprised 66.

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Purpose: To analyze palisade endings in extraocular muscles (EOMs) of a primate species and to examine our previous findings in cat that palisade endings are putative effector organs.

Methods: Eleven monkeys (Macaca fascicularis) of both sexes, between 4 and 6 years of age were analyzed. Whole EOM myotendons were immunostained with four combinations of triple-fluorescent labeling and examined by confocal laser scanning microscopy.

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The role of sensory receptors in eye muscles is not well understood, but there is physiological and clinical evidence for the presence of proprioceptive signals in many areas of the central nervous system. It is unclear which structures generate these sensory signals, and which central neural pathways are involved. Three different types of receptors are associated with eye muscles: (1) muscle spindles, (2) palisade endings, and (3) Golgi tendon organs, but their occurrence varies wildly between species.

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We investigated the development of cartilage canals to clarify their function in the process of bone formation. Cartilage canals are tubes containing vessels that are found in the hyaline cartilage prior to the formation of a secondary ossification centre (SOC). Their exact role is still controversial and it is unclear whether they contribute to endochondral bone formation when an SOC appears.

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Objectives: We studied the experimental use of Seprafilm, a sheet-like film form of hyaluronic acid, in the repair of subtotal perforations of the tympanic membrane (TM), and the durability of such repairs.

Method: The research was conducted on 42 Sprague-Dawley rats. Right TMs of all rats were subtotally and thermally perforated in the same fashion.

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Background: The alpha-Gal (Galalpha1,3-Galbeta1-4GlcNAc-R) epitope is the major xenoantigen causing hyperacute rejection of pig organs transplanted into primates. Porcine bioprostheses are utilized in cardiac surgery. However, premature degeneration of bioprostheses has limited utilization in younger patients and the immune response remains elusive.

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Purpose: To analyze palisade endings in cat extraocular muscles (EOMs) and to clarify whether these EOM-specific organs are sensory or motor.

Methods: Twelve cats aged between 1 and 16 years were analyzed. Whole EOM tendons were immunostained using four different combinations of triple fluorescence labeling.

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In the present study muscle spindles (MSps) and Golgi tendon organs (GTOs) in bovine extraocular muscles (EOMs) were analyzed in detail. The innervation pattern of these proprioceptors was investigated with transmission electron microscope and confocal laser scanning microscope after double-fluorescent labeling. Three-dimensional (3D) reconstructions were performed of GTOs.

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Sudden unexpected death caused by a colloid cyst of the third ventricle in young apparently healthy persons is an uncommon phenomenon that nevertheless occurs regularly in medical examiner's cases and may occur in general hospital pathology practice. This entity has not received proper attention in the general or forensic pathology literature in spite of the fact that sudden death has been appreciated in the clinical literature for many years. We report four cases of sudden unexpected death in young persons whose only major previous complaint was that the chronic relapsing headaches.

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