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Öğe A Case of Spontaneous Spinal Epidural Hematoma Mimicking Stroke(Turkish Neurological Soc, 2014) Koc, Emine Rabia; Acar, Burcu; Ayturk, Zubeyde; Cemil, Duran Berker; Kosehan, Dilek; Ilhan, AtillaSpontaneous spinal epidural hematoma is an uncommon cause of acute non-traumatic myelopathy and may present with various clinical phenotypes. It should be included in the differential diagnosis of the patients who have focal neurological findings suggestive of stroke. Therefore, a thorough documentation of patient history is of great importance, since this can reveal symptoms suggestive of a different etiology. Here, we present a case of a 80-year-old female who was admitted with hemiparesis without cortical or cranial neurological abnormalities. She described pre-existing shoulder and neck pain. Diagnosis of epidural hematoma was made by cervical magnetic resonance imaging. Symptoms resolved partially after surgical intervention. Our case illustrates the variation in the clinical presentations of spontaneous spinal epidural hematoma which can be misdiagnosed as stroke. Therefore, in patients with preceding neck, shoulder or interscapular pain and focal neurological deficits, this diagnosis should be included in the differential diagnosis, particularly in the absence of cortical and cranial symptoms.Öğe A comparison of hair and serum trace elements in patients with Alzheimer disease and healthy participants(Tubitak Scientific & Technological Research Council Turkey, 2015) Koc, Emine Rabia; Ilhan, Atilla; Ayturk, Zubeyde; Acar, Burcu; Gurler, Mukaddes; Altuntas, Aynur; Karapirli, MustafaBackground/aim: To determine whether there was a difference between serum and hair trace elements' concentrations in patients with Alzheimer disease (AD) and healthy participants. Materials and methods: Hair and serum copper, selenium, zinc, magnesium, manganese, and iron levels were measured by inductively coupled plasma-mass spectrometry in patients with AD and healthy participants, and the obtained results were statistically compared. Results: The mean hair selenium and zinc levels of patients with AD were significantly lower than the levels found for control participants (P < 0.05). Patients with AD had significantly higher mean hair copper and manganese levels than the controls. There were no significant differences between AD patients and controls with respect to the hair iron and magnesium levels (P > 0.05). Hair and serum trace element (copper, selenium, zinc, magnesium, manganese, and iron) levels in patients with AD showed no significant difference according to mini mental test scores or sex (P > 0.05). Conclusion: Some trace element levels may change in patients with AD. Due to the more permanent status, the analysis of these element levels in hair might be superior to blood analysis.Öğe HAIR AND SERUM TRACE ELEMENT LEVELS IN ALZHEIMER'S DISEASE(Elsevier Science Inc, 2014) Koc, Emine R.; Ayturk, Zubeyde; Ilhan, Atilla; Acar, Burcu; Gurler, Mukaddes; Bodur, M. Said[Abstract Not Available]Öğe PLATELET ACTIVATION IN ALZHEIMER'S DISEASE(Elsevier Science Inc, 2014) Koc, Emine R.; Uzar, Ertugrul; Cirak, Yasemin; Demir, Yasemin P.; Ilhan, Atilla[Abstract Not Available]Öğe Possible effects of rosuvastatin on noise-induced oxidative stress in rat brain(Medknow Publications & Media Pvt Ltd, 2014) Ersoy, Alevtina; Koc, Emine Rabia; Sahin, Semsettin; Duzgun, Ulkuhan; Acar, Burcu; Ilhan, AtillaThe problem of noise has recently gained more attention as it has become an integral part of our daily lives. However, its influence has yet to be fully elucidated. Other than being an unpleasant stimulus, noise may cause health disorders through annoyance and stress, including oxidative stress. Rosuvastatin, a 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor, may possess antioxidant properties. Based on rat models, our project investigates the effect of rosuvastatin on noise-induced oxidative stress in the brain tissue. Thirty-two male Wistar albino rats were used. The rats were divided into four groups: Noise exposure plus rosuvastatin usage, only noise exposure, only rosuvastatin usage, and control. After the data had been collected, oxidant and antioxidant parameters were analyzed in the cerebral cortex, brain stem, and cerebellum. Results indicated that superoxide dismutase values were significantly decreased in the cerebral cortex, while malondialdehyde values in the brainstem and cerebellum were significantly increased in the group with only noise exposure. Superoxide dismutase values in the brainstem were significantly increased, but nitric oxide values in the cerebellum and brainstem and malondialdehyde values in the cerebellum and cerebral cortex were significantly decreased in the group where only rosuvastatin was used. During noise exposure, the use of rosuvastatin caused significantly increased superoxide dismutase values in the cerebral cortex and brainstem, but significantly reduced malondialdehyde values in the brain stem. Consequently, our data show that brain tissue was affected by oxidative stress due to continued exposure to noise. This noise-induced stress decreases with rosuvastatin therapy.Öğe Potential genetic biomarkers in the early diagnosis of Alzheimer disease: APOE and BIN1(Tubitak Scientific & Technological Research Council Turkey, 2015) Kaya, Gulhan; Gunduz, Esra; Acar, Muradiye; Hatipoglu, Omer Faruk; Acar, Burcu; Ilhan, Atilla; Gunduz, MehmetBackground/aim: Alzheimer disease (AD) is triggered by interactions of multiple genetic and environmental factors. The APOE gene E4 allele is the best-known risk factor for AD, yet it represents a small ratio of genetic factors. According to genome-wide association studies, the BIN1 gene is the second important risk factor for AD, following the APOE gene. We aimed to identify a novel biomarker indicating susceptibility to AD by investigating APOE alleles and BIN1 gene polymorphisms in a Turkish population. Materials and methods: Fifty-three AD patients and 56 controls were included to examine polymorphism and allele frequency of the APOE and BIN1 genes. Genomic DNAs were isolated from whole blood by SDS/proteinase K treatment, phenol-chloroform extraction, and ethanol precipitation. RFLP was done for identification of polymorphisms in the APOE gene and allele-specific PCR was used for the BIN1 gene. Results: Frequency of the APOE E4 allele was higher in the AD patient group, while the frequency of the E2 allele was higher in controls. The E4/E4 genotype was detected in the AD patient group, while this genotype was not observed in the controls. The frequencies of BIN1 alleles were similar in both groups. Conclusion: There was a strong association between AD and the APOE E4 allele, while no such relation was observed with BIN1 gene polymorphism.Öğe The effects and interactions of APOE and APH-1A polymorphisms in Alzheimer disease(Tubitak Scientific & Technological Research Council Turkey, 2015) Acar Cinleti, Burcu; Yardimci, Nilgul; Ayturk, Zubeyde; Ilhan, Atilla; Kaya, Gulhan; Acar, Muradiye; Koc, Emine RabiaBackground/aim: Alzheimer disease (AD) is characterized by the accumulation of senile plaques composed of amyloid beta-peptide, which is derived from beta-amyloid precursor protein through degradation by beta-secretase and.-secretase complexes. One of the major components of gamma-secretase complex, anterior pharynx-defective-1 (APH-1), is responsible for the activity of the.-secretase complex. In this study, we searched for not only the most known common genetic risk factor, APOE, but also the APH-1a gene polymorphism in AD patients in a Turkish population. Materials and methods: In this study, 49 AD patients and 45 healthy controls were included. The genetic polymorphisms and allele frequencies of APOE and APH-1a were investigated. Patients were evaluated for behavioral, cognitive, and functional domains by detailed neurocognitive tests, and comparison between the above-mentioned polymorphisms and disease severity was made. Results: Although there was an increased tendency of the APO epsilon 4 allele in the AD group, no statistically significant difference was detected either in APOE or APH-1a polymorphisms, not suggesting a strong susceptibility to the development of AD. Conclusion: While searching for the pathogenesis of AD in order to develop novel diagnostic as well as therapeutic approaches, analysis of other genes with a possible role in AD is warranted.Öğe The increase of mean platelet volume in patients with Alzheimer disease(Tubitak Scientific & Technological Research Council Turkey, 2014) Koc, Emine Rabia; Uzar, Ertugrul; Cirak, Yasemin; Parlak Demir, Yasemin; Ilhan, AtillaBackground/aim: Vascular risk factors play an important role in the progression of Alzheimer disease (AD). Mean platelet volume (MPV) is a determinant of platelet functionality and increased MPV is associated with an increased risk of vascular inflammation. Here we aimed to examine whether MPV could be used as a marker of vascular damage in AD and to discuss the relation between MPV and other vascular risk factors. Materials and methods: A total of 109 outpatients with AD and 81 healthy controls were included in this study. Diagnosis of AD was made according to defined criteria. The Turkish version of the Mini Mental State Examination (MMSE) was used for cognitive assessment. According to the test results, patients were divided into 2 subgroups, mild (MMSE >= 18) and moderate (MMSE < 18), and their MPV levels were compared. Results: MPV levels were higher in the AD group. There was no statistically significant difference between the moderate group and the mild group according to MPV values. Conclusion: Increased MPV in patients with AD may point to platelet dysfunction. MPV is an indicator of increased in vivo platelet activation. Hence, platelets could be the link between vascular risk factors and AD. The assessment of MPV in patients with AD may help identify the patients that could benefit from additional antiplatelet therapy.
