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Öğe ACUTE TOXIC EFFECTS OF METHYL ALCOHOL ON THE RAT BRAIN: THE PROTECTIVE EFFECTS OF CAFFEIC ACID PHENETHYL ESTER(Carbone Editore, 2014) Cevik, Mehmet Ugur; Varol, Sefer; Yucel, Yavuz; Akil, Esref; Uzar, E.; Kaplan, I; Can, Yazgan UmitBackground: Efficiency of caffeic acid phenethyl ester (CAPE) in reducing free radicals generated by oxidative stress has been previously reported. In the present study, the protective effect of CAPE on methyl alcohol (MeOH) induced oxidative damages on rat brain were presented. Methods: The rats were randomly divided into four groups as follows: Control, methotrexate (MTX) alone, MTX+MeOH, and MTX+MeOH+CAPE (CAPE treatment). All animals except the control group were treated with MTX for 7 days. MTX was diluted in sterile saline and administered (0.3 mg/kg/day) intraperitoneally (ip). At the eighth day, MeOH was administered (3gm/Kg) (ip) in MeOH+MTX and CAPE treatment groups. Four hours after MeOH administration in the CAPE group rats were treated with 10 mu mol/kg CAPE (ip), serum physiologic (i.p.) in MeOH+MTX group. After eight hours, rats were anaesthetized and sacrificed. Malondialdehyde (MDA) levels, paraoxonase-1 (PON-1) activity were measured on the cerebral tissue. Results: MTX+MeOH group compared to the MTX alone group; a statistically significant increase in MDA levels (p = 0.042) were detected. In addition, MTX+MeOH group than MTX MTX alone group in led to a statistically significant decrease in PON-I activity (p = 0.018). CAPE treatment, significantly decrease in MDA levels was compared with MeOH+MTX (p = 0.001). However, CAPE treatment caused an increase on PON-I activity in MeOH group, which was statistically significant (p = 0.009). Conclusion: Consequently, it was demonstrated for the first time that CAPE prevents acute MeOH intoxication induced brain injury by reducing the increase in lipid peroxidation, and elevating the decrease in PON-1 activity.Öğe Association between sequence variations of the Mediterranean fever gene and the risk of migraine: a case-control study(Dove Medical Press Ltd, 2016) Coskun, Salih; Varol, Sefer; Ozdemir, Hasan H.; Celik, Sercan Bulut; Balduz, Metin; Camkurt, Mehmet Akif; Cim, AbdullahMigraine pathogenesis involves a complex interaction between hormones, neurotransmitters, and inflammatory pathways, which also influence the migraine phenotype. The Mediterranean fever gene (MEFV) encodes the pyrin protein. The major role of pyrin appears to be in the regulation of inflammation activity and the processing of the cytokine prointerleukin-1 beta, and this cytokine plays a part in migraine pathogenesis. This study included 220 migraine patients and 228 healthy controls. Eight common missense mutations of the MEFV gene, known as M694V, M694I, M680I, V726A, R761H, K695R, P369S, and E148Q, were genotyped using real-time polymerase chain reaction with 5' nuclease assays, which include sequence specific primers, and probes with a reporter dye. When mutations were evaluated separately among the patient and control groups, only the heterozygote E148Q carrier was found to be significantly higher in the control group than in the patient group (P=0.029, odds ratio [95% confidence interval] =0.45 [0.21-0.94]). In addition, the frequency of the homozygote and the compound heterozygote genotype carrier was found to be significantly higher in patients (n=8, 3.6%) than in the control group (n=1, 0.4%) (P=0.016, odds ratio [95% confidence interval] =8.57 [1.06-69.07]). However, there was no statistically significant difference in the allele frequencies of MEFV mutations between the patients and the healthy control group (P=0.964). In conclusion, the results of the present study suggest that biallelic mutations in the MEFV gene could be associated with a risk of migraine in the Turkish population. Moreover, MEFV mutations could be related to increased frequency and short durations of migraine attacks (P=0.043 and P=0.021, respectively). Future studies in larger groups and expression analysis of MEFV are required to clarify the role of the MEFV gene in migraine susceptibility.Öğe Association of brain-derived neurotrophic factor and nerve growth factor gene polymorphisms with susceptibility to migraine(Dove Medical Press Ltd, 2016) Coskun, Salih; Varol, Sefer; Ozdemir, Hasan H.; Agacayak, Elif; Aydin, Birsen; Kapan, Oktay; Camkurt, Mehmet AkifMigraine is one of the most common neurological diseases worldwide. Migraine pathophysiology is very complex. Genetic factors play a major role in migraine. Neurotrophic factors, such as brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF), play an important role in central nervous system functioning, development, and modulation of pain. This study investigates whether polymorphisms in the BDNF and NGF genes are associated with migraine disease in a Turkish case-control population. Overall, 576 subjects were investigated (288 patients with migraine and 288 healthy controls) for the following polymorphisms: rs6265(G/A), rs8192466(C/T), rs925946(G/T), rs2049046(A/T), and rs12273363(T/C) in the BDNF gene, and rs6330(C/T), rs11466112(C/T), rs11102930(C/A), and rs4839435(G/A) in the NGF gene using 5'-exonuclease allelic discrimination assays. We found no differences in frequency of the analyzed eight polymorphisms between migraine and control groups. However, the frequency of minor A alleles of rs6265 in BDNF gene was borderline significant in the patients compared with the healthy controls (P=0.049; odds ratios [ORs] [95% confidence intervals {CIs}] = 0.723 [0.523-0.999]). Moreover, when the migraine patients were divided into two subgroups, migraine with aura (MA) and migraine without aura (MO), the minor TT genotype of rs6330 in NGF was significantly higher in MA patients than in MO patients (P=0.036) or healthy controls (P=0.026), and this disappeared after correction for multiple testing. Also, the rs6330*T minor allele was more common in the MA group than in the MO group or controls (P=0.011, ORs [95% CIs] = 1.626 [1.117-2.365] or P=0.007, ORs [95% CIs] = 1.610 [1.140-2.274], respectively). In conclusion, this is the first clinical study to evaluate the association between BDNF and NGF polymorphisms in migraine patients compared with health controls. Our findings suggest that the NGF rs6330*T minor allele might be nominated as a risk factor for developing aura in migraine disease. Our results should be considered as preliminary, and they need to be confirmed by future studies.Öğe Changes in serum albumin levels and neutrophil-lymphocyte ratio in patients with convulsive status epilepticus(Taylor & Francis Ltd, 2017) Ozdemir, Hasan H.; Akil, Esref; Acar, Abdullah; Tamam, Yusuf; Varol, Sefer; Cevik, Mehmet Ugur; Arikanoglu, AdaletAim: Inflammation may be involved in the ictogenesis and development of some partial epilepsies. Serum albumin levels and the neutrophil-lymphocyte ratio (NLR) are markers of inflammation. The aim of this study was to investigate the ability of serum albumin levels and NLR to predict inflammation in patients with convulsive status epilepticus (CSE). Methods: This retrospective study was conducted on 58 patients who were diagnosed with CSE and control group comprised of 58 healthy individuals. Albumin levels and NLR were evaluated during both the acute and subacute periods of CSE. Results: The average serum albumin levels were 3.27 +/- 0.62 g/dL during the acute period and 3.4 +/- 0.67 g/dL in the subacute period in the patient group and 3.92 +/- 0.52 g/dL in the control group. Neutrophil counts were higher in patients in the acute phase of CSE, but lymphocyte counts were lower compared to the control group and the subacute phase. The average NLR values were 4.83 +/- 5.1 in the acute period, 3.07 +/- 3.02 during the subacute period and 1.98 +/- 0.42 in the control group. Serum albumin and NLR levels were significantly different between the patients in the subacute and acute periods of CSE and the control group (p < 0.05). There were significant negative correlational relationships between serum albumin and NLR levels (p < 0.05). Conclusion: We found serum albumin levels were significantly lower and the NLR was significantly higher in the acute period of CSE. Neutrophil-mediated inflammation may be important in the aetiopathogenesis of CSE.Öğe Classification of Epilepsy Types from Electroencephalogram Time Series Using Continuous Wavelet Transform Scalogram-Based Convolutional Neural Network(Amer Soc Testing Materials, 2021) Turk, Omer; Akpolat, Veysi; Varol, Sefer; Aluclu, Mehmet Ufuk; Ozerdem, Mehmet SiracDuring the supervisory activities of the brain, the electrical activities of nerve cell clusters produce oscillations. These complex biopotential oscillations are called electroencephalogram (EEG) signals. Certain diseases, such as epilepsy, can be detected by measuring these signals. Epilepsy is a disease that manifests itself as seizures. These seizures manifest themselves in different characteristics. These different characteristics divide epilepsy seizure types into two main groups: generalized and partial epilepsy. This study aimed to classify different types of epilepsy from EEG signals. For this purpose, a scalogram-based, deep learning approach has been developed. The utilized classification process had the following main steps: the scalogram images were obtained by using the continuous wavelet transform (CWT) method. So, a one-dimension EEG time series was converted to a two-dimensional time-frequency data set in order to extract more features. Then, the increased dimension data set (CWT scalogram images) was applied to the convolutional neural network (CNN) as input patterns for classifying the images. The EEG signals were taken from Dicle University, Neurology Clinic of Medical School. This data consisted of four classes: healthy brain waves, generalized preseizure, generalized seizure, and partial epilepsy brain waves. With the proposed method, the average accuracy performance of three of the EEG records' classes (healthy, generalized preseizure, and generalized seizure), and that of all four classes of EEG records were 90.16 % (+/- 0.20) and 84.66 % (+/- 0.48). According to these results, regarding the specific accuracy ratings of the recordings, the healthy EEG records scored 91.29 %, generalized epileptic seizure records were at 96.50 %, partial seizure EEG records scored 89.63 %, and the preseizure EEG records had a 90.44 % rating. The results of the proposed method were compared to the results of both similar studies and conventional methods. As a result, the performance of the proposed method was found to be acceptable.Öğe Contribution of polymorphisms in ESR1, ESR2, FSHR, CYP19A1, SHBG and NRIP1 genes to migraine susceptibility in Turkish population(Indian Acad Sciences, 2016) Coskun, Salih; Yucel, Yavuz; Cim, Abdullah; Cengiz, Beyhan; Oztuzcu, Serdar; Varol, Sefer; Ozdemir, Hasan H.Migraine, a highly prevalent headache disorder, is regarded as a polygenic multifactorial disease, Single-nucleotide polymorphisms (SNPs) in the genes that involved in sex hormone metabolism may comprise risk for migraine, but the results of previous genetic association studies are conflicting. The aim of this study was to evaluate genetic variants in genes involved in oestrogen receptor and oestrogen hormone metabolism in a Turkish population. A total of 12 SNPs in the ESR1, ESR2. FSHR, CYP19A1 SHBG and NRIP1 genes were genotyped in 142 migraine cases and 141 nonmigraine controls, using a 13iolVtark 96,96 dynamic array system. In addition, gene gene interactions were analysed using generalized multifactor dimensionality reduction (GMDR) methods. According to GI\ADR analysis, our results indicated that there was a significant association between migraine and gene gene interaction a.mong the CYP19A1 FSHR, ESR1 and NRIP1, Single-gene variant analysis showed that a significant association was observed between the TT genotype of rs10046 and migraine susceptibility. When the analysis was performed only in women, the GG genotype of rs222974I was different between migaineurs and controls. When the female migraine patients were divided into two groups, migraine related to menstruation ilVIRM) or migraine not related to menstruation (MN RN), OG genotype of rs726281 was significantly associated with M FM. These results suggested that rs10046 could play a potential role in migyaine susceptibility in Turkish population, Also, the rare GG genotype of rs726281 appears to influence migraine susceptibility in a recessive manner in MRM subgroup of female patients. In addition, variant GG genotype of rs2229741 may reduce the risk of migraine in Turkish women.Öğe Determining quality of life and associated factors in patients with stroke(Turkish Society of Physical Medicine and Rehabilitation, 2015) Em, Serda; Bozkurt, Mehtap; Karakoç, Mehmet; Çağlayan, Mehmet; Akdeniz, Dicle; Oktayoğlu, Pelin; Varol, Sefer; Nas, KemalObjective: This study aims to examine the overall and domain-specific quality of life in patients with stroke and to identify variables predicting quality of life after stroke. Material and Methods: A total of 104 patients with sufficient cognitive functions having hemiplegia because of cerebrovascular accident and 108 controls were included in this study. Demographic and clinical features were recorded. The Barthel Index (BI) and Functional Ambulation Category scale were employed to assess the functional state of patients. Quality of life was evaluated by the Short Form 36 (SF-36) health survey, whereas the emotional state of the patients was evaluated by the Hospital Anxiety and Depression Scale (HADS). Functional status, motor impairment, and emotional state were determined as independent variables, and multiple regression analysis was used to predict quality of life. Results: Patients had significantly lower scores in the quality of life subscores and total scores in comparison with the controls (p<0.001). The mean anxiety and depression rates in the patients were significantly higher than those in controls (p<0.001). The sum of subscores and physical composite score of SF-36 were significantly lower in female and illiterate patients than in male and educated patients. Multiple regression analyses indicated that HADS depression was associated with mental health (p<0.001), whereas BI was independently associated with the physical health total score (p<0.05). The power of the statistical analysis for study population was 100% according to the given effect size (α=0.01). Conclusion: Present results demonstrated that patients with stroke have a significantly poor quality of life than the general population. The reduced quality of life after stroke appears to be related the emotional state, physical disability, and demographic properties such as gender and education. Therefore, prevention of disability and early diagnosis and treatment of depression are vital in improving the quality of life of patients with stroke.Öğe Diagnostic value of F-wave inversion in patients with early carpal tunnel syndrome(Elsevier Ireland Ltd, 2012) Cevik, Mehmet Ugur; Altun, Yasar; Uzar, Ertugrul; Acar, Abdullah; Yucel, Yavuz; Arikanoglu, Adalet; Varol, SeferRoutine electrophysiological studies usually give normal results in patients with early stage carpal tunnel syndrome (CTS). Diagnostic significance of the F-wave inversion (the median of F-wave minimal latencies (FWML) exceeds a normal ipsilateral ulnar FWML by 1 ms) has not been previously reported in early stage CTS. In this study, our primary aim was to investigate the diagnostic value of F-wave inversion in early stage CTS. Additionally, we aimed to demonstrate any possible relationship between F-wave inversion and symptom scores of the Boston questionnaire and functional capacity in early stage CTS. The study included 60 early stage CTS patients who presented with a median sensory nerve conduction velocity of >= 50 m/s. The symptom severity and functional status of the patients were assessed by using the Boston questionnaire. The control group consisted of 45 healthy volunteers. We compared early stage CTS patients and healthy control subjects in terms of the results obtained from median-ulnar FWML. Existence of F-wave inversion was found in 32 (53.3%) of the early stage CTS patients and in 3 (8.7%) of the healthy controls (p = 0.001). It was also found to be positively correlated with the Boston questionnaire scores (p = 0.001, r = 0.41) and functional capacity scores (p = 0.001, r = 0.41). The sensitivity and specificity of F-wave inversion for the diagnosis of early stage CTS were calculated as 53.3% and 93.3%, respectively. The addition of F-wave inversion measurement to the set of the routine nerve conduction studies can increase the reliability of the electrophysiological studies in patients with early stage CTS. (C) 2011 Elsevier Ireland Ltd. All rights reserved.Öğe Double Filtration Plasmapheresis in the Treatment of a Case with Acute Disseminated Encephalomyelitis(Turkish Neurological Soc, 2013) Cevik, Mehmet Ugur; Cetincakmak, Mehmet Guli; Varol, Sefer; Akil, EsrefAcute disseminated encephalomyelitis (ADEM), is a monophasic autoimmune demyelinating disease of the central nervous system. Although high-dose steroid management has been considered the mainstay of treatment for ADEM, some patients are unresponsive to steroid therapy. We report the case of a 44-year-old woman with ADEM who did not respond to steroid therapy, but who showed a noticeable improvement with double filtration plasmapheresis (DFPP). To the best of our knowledge, this is the first case report of ADEM in literature treated with DFPP.Öğe Echocardiographic Epicardial Fat Thickness and Neutrophil to Lymphocyte Ratio Are Novel Inflammatory Predictors of Cerebral Ischemic Stroke(Elsevier Science Bv, 2014) Akil, Esref; Akil, Mehmet Ata; Varol, Sefer; Ozdemir, Hasan Huseyin; Yucel, Yavuz; Arslan, Demet; Akyuz, AbdurahmanBackground: The role of epicardial fat thickness (EFT) in ischemic stroke (IS) has not been previously investigated. The aim of the present study was to evaluate EFT and neutrophil/lymphocyte ratio (NLR) among patients with IS and to examine the relationship between these inflammatory markers and the incidence of IS. Methods: The cross-sectional design includes 38 patients with IS and 47 age- and sex-matched healthy controls. Echocardiographic measurement of EFT was conducted according to previously published methods. An automated hematology analyzer was used to generate total and differential leukocyte counts from patient blood samples. Results: Mean EFT was 4.86 +/- .68 mm in the control group and 5.95 +/- 1.14 mm in the IS group. EFTwas significantly greater in the IS patients in relation to the control group (P < .001). Mean NLR was significantly greater among IS patients in relation to the control group (2.5 +/- .6 vs. 1.8 +/- .4, P < .001). No significant confounding factors were identified in the data set. Spearman's correlation analysis revealed a mild, but highly significant correlation between EFT and NLR (r = 5.293, P =.006). Conclusions: This study demonstrates for the first time the association between EFT and cerebral IS. Echocardiographic EFT was significantly correlated with NLR. NLR and echocardiographic EFT represent inexpensive and readily available clinical markers that maybe useful in estimating risk of IS.Öğe The effects of needle deformation during lumbar puncture(Wolters Kluwer Medknow Publications, 2015) Ozdemir, Hasan Huseyin; Demir, Caner F.; Varol, Sefer; Arslan, Demet; Yildiz, Mustafa; Akil, EsrefObjective: The aim of this study is to assess deformation of the tip and deflection from the axis of 22-gauge Quincke needles when they are used for diagnostic lumbar puncture (LP). Thus, it can be determined whether constructional alterations of needles are important for predicting clinical problems after diagnostic LP. Materials and Methods: The 22-gauge Quincke needles used for diagnostic LP were evaluated. A specially designed protractor was used for measurement and evaluation. Waist circumference was measured in each patient. Patients were questioned about headaches occurring after LP. Results: A total of 115 Quincke-type spinal needles used in 113 patients were evaluated. No deflection was detected in 38 (33.1%) of the needles. Deflection between 0.1 degrees and 5 degrees occurred in 43 (37.3%) of the needles and deflection >= 5.1 degrees occurred in 34 patients (29.6%). Forty-seven (41.5%) patients experienced post lumbar puncture headache (PLPH) and 13 (11.5%) patients experienced intracranial hypotension (IH). No statistically significant correlation between the degree of deflection and headache was found (P > 0.05). Epidural blood patch was performed for three patients. Deformity in the form of bending like a hook occurred in seven needles and IH occurred in six patients using these needles. Two of the needles used in three patients requiring blood patch were found to be bent. Conclusion: Deformation of needles may increase complications after LP. Needle deformation may lead to IH. In case of deterioration in the structure of the needle, termination of the puncture procedure and the use of a new needle could reduce undesirable clinical consequences, especially IH.Öğe Epilepsili hastalarda serum paraoksonaz-1 aktivitesi ve malondialdehit düzeyleri(Dicle Üniversitesi Tıp Fakültesi, 2012) Çevik, Mehmet Uğur; Varol, Sefer; Yücel, Yavuz; Akıl, Eşref; Çelepkolu, Tahsin; Arıkanoğlu, Adalet; Yüksel, Hatice; Aluçlu, Mehmet UfukAmaç: Amacımız epilepsili hastalarda serumda antioksidan olarak paraoksonaz-1 (PON-1) aktivitesi ve malondialdehit (MDA) (oksidatif stres parametresi) düzeylerini değerlendirmektir. Gereç ve yöntem: Çalışmaya kırk beş epilepsi hastası alındı ve kontrol sağlıklı 45 kişi ile karşılaştırıldı. Serum MDA düzeyleri ve PON-1 aktiviteleri sırasıyla Ohkawa ve Eckerson metodları ile ölçüldü. Bulgular: Serum MDA seviyeleri hasta grubunda (3,97±0,71 nmol/mL) kontol grubuna (3,52±0,95 nmol/mL) göre anlamlı yüksek (p = 0,015) iken, PON-1 aktiviteleri hasta grubunda kontrol grubuna göre anlamlı düşük bulundu (45,17±29,70 U/L ve 66,50±46,15 U/L, p= 0,011). Sonuç: Epilepside reaktif oksijen türlerinin seviyelerinin artması oksidatif stresin bir sonucu olabilir. Bu sebeple antioksidan olarak PON-1 aktivitesi azalırken, MDA düzeyleri artabilir.Öğe Evaluation of cerebral venous thrombosis secondary to oral contraceptive use in adolescents(Springer-Verlag Italia Srl, 2015) Ozdemir, Hasan H.; Varol, Sefer; Akil, Esref; Acar, Abdullah; Demir, Caner F.Our goal was to evaluate the clinical patterns, additional risk factors, treatment and outcome of cerebral venous thrombosis (CVT) related to adolescent oral contraceptive pill (OCP) usage. We evaluated 22 patients with CVT related to OCPs admitted to Firat and Dicle University Hospitals from January 2008 to January 2013. We assessed the clinical features, risk factors, imaging results and prognosis. Magnetic resonance imaging (MRI) and magnetic resonance were the preferred procedures for the diagnosis of CVT. MRI revealed parenchymal lesions in 11 (50 %) patients, and the remaining patients had normal MRIs. The sinuses most frequently affected by thrombosis were the superior sagittal sinus and the transverse sinus. The additional risk factors identified for CVT were antiphospholipid syndrome, protein C deficiency, protein C and S deficiency, factor V Leiden associated with heterozygous antithrombin III deficiency, methylenetetrahydrofolate reductase and prothrombin gene mutations. CVT may be overlooked in adolescents because it is more common among middle-aged and elderly adults. CVT should be suspected in the presence of neurological symptoms in adolescents, especially in those using OCPs.Öğe Evaluation of posttraumatic recurrent bacterial meningitis in adults(Turkish Assoc Trauma Emergency Surgery, 2015) Deveci, Ozcan; Uysal, Cem; Varol, Sefer; Tekin, Recep; Bozkurt, Fatma; Bekcibasi, Muhammed; Hosoglu, SalihBACKGROUND: Acute bacterial meningitis may develop as a complication after head trauma. The aim of this study was to present the demographic, clinical, microbiological and radiological characteristics of adult patients who presented with recurrent bacterial meningitis attacks after trauma. METHODS: Using a retrospective approach, the medical records of patients with acute recurrent bacterial meningitis (RBM) were reviewed, and those who had a history of trauma were included into the study. RBM was diagnosed based on clinical, bacteriologic and laboratory results. Demographic characteristics, clinical course, laboratory test results including cerebrospinal fluid analysis (CSF), radiological images, and the applied treatments were evaluated. RESULTS: A total of two hundred and twelve patients with acute bacterial meningitis were included into the study. RBM was diagnosed in twenty-five patients (11.8%), and in 18 of these patients (8.5%), the attacks had occurred subsequent to a trauma. In the CSF cultures of four patients, S. pneumoniae growth was observed. CT cisternography indicated CSF leaks in eleven patients. Moreover, bone fractures were observed in the CT images of ten patients. Ceftriaxone therapy was prescribed to 83% of the patients. Eight patients had a history of a fall in childhood, and five were involved in traffic accidents before acute bacterial meningitis. Four of the patients developed epilepsy and one developed deafness as sequelae. CONCLUSION: Since RBM attacks are frequently observed following trauma, in patients with a history of trauma who present with meningitis, the risk of recurrence should be considered.Öğe Facial diplegia: etiology, clinical manifestations, and diagnostic evaluation(Assoc Arquivos Neuro- Psiquiatria, 2015) Varol, Sefer; Ozdemir, Hasan Huseyin; Akil, Esref; Arslan, Demet; Aluclu, M. Ufuk; Demir, Caner F.; Yucel, YavuzObjective: Facial diplegia (FD) is a rare neurological manifestation with diverse causes. This article aims to systematically evaluate the etiology, diagnostic evaluation and treatment of FD. Method: The study was performed retrospectively and included 17 patients with a diagnosis of FD. Results: Patients were diagnosed with Guillain-Barre syndrome (GBS) (11), Bickerstaff's brainstem encephalitis (1), neurosarcoidosis (1), non-Hodgkin's Lymphoma (1), tuberculous meningitis (1) herpes simplex reactivation (1) and idiopathic (1). In addition, two patients had developed FD during pregnancy. Conclusion: Facial diplegia is an ominous symptom with widely varying causes that requires careful investigation.Öğe Guillain-Barre sendromunda klinik ve demografik özellikler(Dicle Üniversitesi Tıp Fakültesi, 2014) Akıl, Eşref; Varol, Sefer; Taşkın, Asım; Arıkanoğlu, Adalet; Tamam, Yusuf; Öztürk, ÜnalAmaç: Guillain-Barre Sendrom’lu (GBS) hastaların epidemiyolojik, klinik, laboratuvar ve elektrofizyolojik bulguları değerlendirilmesi amaçladık. Yöntemler: Çalışmaya Güneydoğu Anadolu bölge nüfusunu temsil ettiği düşünülen Dicle üniversitesi tıp fakültesi hastanesi nöroloji kliniğine Ocak 2011 ve Mart 2014 yılları arasında başvurmuş ve yatırılarak takip edilen 36 olgunun dosya kayıtları geriye dönük olarak incelendi. Tüm hastaların demografik, klinik, laboratuar, BOS, elektrofizyolojik ve tedavi verileri kaydedildi. Bulgular: Guillain-Barre Sendromu tanısı alan 36 olgunun 22 (%61,1)’u erkek ve 14 (%38,9)’i kadındı. Klinik ve elektrofizyolojik verilerine göre 22 hasta (%61,1) Akut İnflamatuar Demiyelinizan Polinöropati (AIDP), 4 hasta (%11,1) Akut Motor Aksonal Nöropati (AMAN), 8 hasta (%22,2) Akut Motor ve Sensoryal Aksonal nöropati (AMSAN) ve 2 hasta (%5,6) Miller Fisher Sendromu (MFS) olarak değerlendirildi. Hastaların çoğunda öncül bir hastalık mevcuttu. 13 hastada (%36,1) üst solunum yolu enfeksiyonu (ÜSYE) , 10 hastada (%27,8) gastroenterit, 4 hastada(%11,1) cerrahi, bir hastada(%2,8) aşı öyküsü mevcuttu. Sonuç: Çalışmamız GBS’yi cerrahi işlemlerin tetikleyebileceğini ve GBS’nin etyopatogenezinde coğrafyanın ve çevresel faktörlerin önemini göstermektedir.Öğe High-sensitivity C-reactive protein and high mobility group box-1 levels in Parkinson's disease(Springer-Verlag Italia Srl, 2019) Baran, Aslihan; Bulut, Mahmut; Kaya, Mehmet Cemal; Demirpence, Ozlem; Sevim, Bunyamin; Akil, Esref; Varol, SeferVarious immunologic and inflammatory factors are contributed to pathogenesis of Parkinson's disease (PD). High mobility group box-1 (HMGB1) is a protein that plays certain roles in inflammation, DNA repair, transcription, somatic recombination, cell differentiation, cell migration, neuronal development, and neurodegeneration. The aim of the present study was to evaluate the serum levels of HMGB1 and high-sensitivity C-reactive protein (hs-CRP) among patients with Parkinson's disease and healthy controls. This study includes 30 patients with PD and 30 healthy controls, matched sex, age, body mass index, and smoking status. HMGB1 and hs-CRP serum levels were compared between the groups. The diagnostic performance of HMGB1 and hs-CRP was evaluated with receiver operating characteristic (ROC) curve analysis. HMGB1 levels were significantly higher in PD patients than in controls. Hs-CRP levels were significantly higher in PD patients than in controls There was a moderate correlation between hs-CRP and HMGB1 levels in the patient group. The cut-off value of HMGB1 level for the prediction of PD was determined as 32.8ng/mL with 80% sensitivity and 60% specificity (p=0.006). The cut-off value of hs-CRP level for the prediction of PD was determined as 0.63mg/L with 66.7% sensitivity and 77.7% specificity (p=0.007). This study demonstrates for the first time the association between HMGB1, hs-CRP, and PD. We found that HMGB1 and hs-CRP levels to be significantly higher in the PD patients than in the normal controls. As a result of the ROC curve analysis, HMGB1 and hs-CRP levels may be fair markers in the diagnosis of PD.Öğe Increased fibrinogen, D-dimer and galectin-3 levels in patients with migraine(Springer-Verlag Italia Srl, 2014) Yucel, Yavuz; Tanriverdi, Halis; Arikanoglu, Adalet; Varol, Sefer; Kaplan, Ibrahim; Akil, Esref; Celepkolu, TahsinThere are limited studies evaluating the fibrinogen levels in patients with migraine. It remains unknown whether the levels of the haematological marker of thromboembolism, d-dimer, and the levels of galectin-3, which plays an important role in inflammation as a proinflammatory mediator, change during the attacks in patients with migraine. The present study aims to compare galectin-3, fibrinogen and d-dimer levels in patients with migraine during the attacks and interictal periods, and to compare galectin-3, fibrinogen and d-dimer levels between patients with migraine and healthy controls to investigate the role of these parameters in the pathogenesis of migraine. Fifty-nine patients with migraine and 30 age-gender matched healthy control subjects were enrolled in the study. Blood galectin-3, fibrinogen and d-dimer levels were measured in patients with migraine. Patients with migraine had higher levels of galectin-3, fibrinogen and d-dimer compared to the healthy controls (p < 0.05). No statistically significant difference was found between galectin-3 and fibrinogen levels during the attacks and interictal period in the migraine group (p > 0.05). Migraine patients had higher d-dimer levels during the attacks compared to the patients in the interictal period in the migraine group (p = 0.05). In conclusion, we found increased levels of fibrinogen, d-dimer and galectin-3 in patients with migraine compared to the healthy control group. Furthermore, we showed increased galectin-3 levels in patients with migraine, and higher d-dimer levels during migraine attacks compared to the interictal periods for the first time. These findings may be associated with the hypercoagulability and neurogenic inflammation during migraine headaches.Öğe Investigation of Mean Platelet Volume and Platelet Count in the Blood of Patients with Migraine(Turkish Neurological Soc, 2013) Varol, Sefer; Akil, Esref; Cevik, Mehmet Ugur; Celepkolu, Tahsin; Yucel, Yavuz; Tanriverdi, Mehmet Halis; Aluclu, Mehmet UfukObjective: Mean platelet volume (MPV) is an indicator for platelet function and activation. Studies researching MPV and platelet level on the patients with migraine are insufficient. In this study, we aimed to find a difference in MPV and platelet count in individuals with migraine compared to healthy controls, which are indicators for platelet activation. Material and Method: We recruited 193 patients (female/male: 128/65, average age: 31.66 +/- 9.01) who are referred to the Neurology Clinic of Dicle University, Faculty of Medicine between January 2010 and January 2012 and have been diagnosed with migraine according to 2004 diagnostic criteria of International Headache Society (IHS) and 119 healthy individuals (female/male: 73/46, averge age: 32.27 +/- 9.88) who are referred to the Family Practice Clinic and Blood Bank. We compared MPV and platelet counts between the patients with migraine and healthy controls. Both groups were similar in terms of age and gender. Results: A statistically insignificant increase was found in MPV in patients with migraine (7.98 +/- 1.34 fL) when compared to the control group (7.85 +/- 0.96 fL) (p=0.34). Platelet levels were significantly lower in patients with migraine (367.6 +/- 74.2) than the platelet levels of the control group (286.9 +/- 68.3) (p=0.02). Discussion: We found lower platelet levels in the patients with migraine compared to the control group. There was also statistically insignificant increase in MPV in patients with migraine, suggesting that these findings may indicate an insignificant platelet activation in patients with migraine. New prospective studies are needed on this subject.Öğe Investigation of Total Oxidants/Antioxidants in Patients with Intracerebral Haemorrhage(Turkish Neurological Soc, 2013) Cevik, Mehmet Ugur; Acar, Abdullah; Yucel, Yavuz; Varol, Sefer; Akil, Esref; Arikanoglu, Adalet; Yuksel, HaticeObjective: Although there are numerous studies about oxidants and antioxidants in patients with ischemic stroke, the number of studies on this subject in patients with intracerebral hemorrhage (ICH) is limited. Malondialdehyde (MDA) is an oxidant parameter investigated in patients with ICH, and total oxidant status (TOS) has not been investigated so far. We aimed to investigate in blood samples the oxidant parameters MDA and TOS, and the total antioxidant status (TAS) in patients with ICH. Material and Method: A total of 30 patients with ICH, admitted and treated at the Neurology Clinic in the Faculty of Medicine, University of Dicle and 30 control who had no stroke or any systemic disorders were included in the study. Peripheral vein blood samples taken from patients and controls were included in the first 24 hours after stroke. Serum TAS, TOS values were measured with the Erel method, a specific, fully automatic and colorimetric method, and serum level of MDA was measured with method of Ohkawa. Results: Compared to the control group, the serum levels of TAS, TOS and MDA were significantly higher in the ICH patients (p < 0.05). However, there was no correlation between serum TOS, TAS and MDA levels and Glasgow Coma Scale (GCS) total scores and hematoma volumes (p> 0.05). Discussion: The increase in the serum levels of MDA, TOS, and TAS in ICH patients may demonstrate that there is an increase in oxidative stress and this supports the fact that that oxidative stress may play a significant role in the pathogenesis of the ICH. However, the increase of these parameters was not found to be associated with hematoma volume and GCS in patients with ICH.
