Derya Kaya
Dokuz Eylül University
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Publication
Featured researches published by Derya Kaya.
Journal of the Neurological Sciences | 2013
Dilaram Billur Çelik; Esra Coskuner Poyraz; Ayhan Bingöl; Egemen Idiman; Serkan Ozakbas; Derya Kaya
PURPOSE To assess the frequency and nature of sexual dysfunction in multiple sclerosis (MS) patients and to investigate the relationships of SD with clinical, demographic and psychosocial factors by comparing MS patients with and without SD. METHODS Eighty-nine patients were included, 45 males and 44 females, aging an average of 37.4 ± 8.6 years (range:21-56). We applied Multiple Sclerosis Intimacy and Sexuality Questionnaire-19 (MSISQ-19) and Arizona Sexual Experiences Scale (ASEX) to all patients. Disability was evaluated with the expanded disability status scale (EDSS). RESULTS 60.7% (n=54) of patients reported SD according to MSISQ scores. Women exhibited significantly higher MSISQ scores than men (42.6 ± 12.9 and 36.6 ± 13.3, respectively; P=0.034). Women (7.9%) also reported to experience sexual arousal difficulties significantly more than men (1.1%) (P=0.024) according to ASEX. The patients were classified into three MSISQ-19 subscales, Primary, Secondary and Tertiary SD. The most common reported dimension of SD was secondary (32.5%, n=41). In this dimension of SD, patients mostly complained of pain-burning, memory-concentration problems and bowel symptoms. A significant relationship was found between Secondary SD and both EDSS score and disease duration (r=0.34 p=0.001 and r=0.21 p=0.042, respectively). Tertiary SD was also associated with EDSS score (r=0.23 p=0.03). CONCLUSION Sexual Dysfunction, a frequent problem for MS patients, is associated with gender. Women reported more SD than men. Secondary SD symptoms were the most common complaints for both men and women. Nonetheless women had more secondary SD symptoms than men. The emotional dimension of SD is related with disability.
Annals of clinical and translational neurology | 2015
Jens Ingwersen; Til Menge; Britta Wingerath; Derya Kaya; Jonas Graf; Tim Prozorovski; Andreas Keller; Christina Backes; Markus Beier; Matthias Scheffler; Thomas Dehmel; Bernd C. Kieseier; Hans-Peter Hartung; Patrick Küry; Orhan Aktas
To identify microRNAs (miRNAs) regulated by anti‐α4 integrin monoclonal antibody therapy (natalizumab) in the peripheral blood of patients with relapsing‐remitting (RR) multiple sclerosis (MS) and to confirm their role in experimental settings in vivo.
Experimental Gerontology | 2017
Busra Tuven; Pinar Soysal; Gulcin Unutmaz; Derya Kaya; Ahmet Turan Isik
&NA; Uric acid (UA) may not only prevent development of cognitive dysfunction owing to its antioxidant efficacy, but also may worsen cognitive functions by gaining pro‐oxidant character. The present study attempts to uncover this paradoxical association between UA and cognitive impairment in elderly. 1374 elderly patients were retrospectively evaluated and included in the study. Participants underwent determination of circulating UA levels and comprehensive geriatric assessment. A serum UA concentration ≥ 7.0 mg/dL in males and ≥ 5.7 mg/dL in females were considered hyperuricemia. The mean age of patients was 76.72 ± 8.76 years. The prevalence of hyperuricemia was 36.6%. Significant differences was determined between the patients with and without hyperuricemia in terms of age, gender, body mass index, score of Charlson Comorbidity Index (CCI), triglyceride level, and the prevalence of dementia, diabetes, hypertension and Congestive Heart Failure (CHF) (p < 0.05). When the effect of diabetes, hypertension and CHF between the groups has been statistically adjusted, the prevalence of dementia was significantly higher in those with lower UA in the absence of effect of DM, HT and CHF (p < 0.05). Higher UA is associated with better cognitive performance in the absence of cardiovascular risk factors, and these risk factors may potentially suppress this protective effect of higher UA in the older adults. HighlightsUA has a paradoxic effect of on cognitive functions in older adults.Higher UA is associated with better cognitive performance in the absence of CV risk factors.CV risk factors may lead to supress the protective effect of higher UA.
Autoimmune Diseases | 2012
Serkan Ozakbas; Derya Kaya; Egemen Idiman
Objectives. In the present study, we aimed to compare the childhood and adult onset multiple sclerosis patients prospectively in their adulthood on the basis of clinical and magnetic resonance imaging (MRI) findings and cognitive impairment, which have not been performed before. Patients and Methods. Forty-six patients in whom the disease onset occurred before 16 years of age were included in the present study. Study subjects were compared with 64 randomly included adult onset patients. Results. Mean disease duration, clinical course, and female to male ratio did not differ in the groups. Cerebellar/brainstem and spinal involvement at onset were significantly higher in EOMS than in AOMS. Difference in MSFC between baseline and at the end of the 5th year was significantly worse in EOMS population (P = 0.02). The most significant difference was found in Paced Auditory Serial Addition Test (PASAT) (P = 0.008). Differences between baseline and at the end of the 5th year on the basis of T1 hypointense lesions were significantly higher in early onset MS than in adult onset MS patients (P = 0.02). Conclusions. Early onset MS seems to have worse prognosis than that of adult onset MS on the basis of clinical manifestation, cognitive impairment, and MRI parameters.
Psychogeriatrics | 2018
Ahmet Turan Isik; Pinar Soysal; Derya Kaya; Cansu Usarel
A simple, quick, and efficient screening tool for detecting mild cognitive impairment (MCI) and Alzheimer’s disease (AD) is essential, especially in the primary care setting. In this study, we examined the neuropsychological profiles of elderly patients and aimed to assess the diagnostic value of the triple test, comprised of the attended alone sign (AAS), head‐turning sign, and applause sign (AS), for detecting MCI and AD.
Current Geriatrics Reports | 2015
Pinar Soysal; Derya Kaya; Ahmet Turan Isik
Delirium is a complex syndrome defined as an acute, fluctuating syndrome of altered attention, awareness, and cognition. Delirium is common in the elderly, but unfortunately underdiagnosed. The consequences could be significant such as an increase in mortality, hospitalization, loss of autonomy, and increased risk to be institutionalized. The predisposing and precipitating factors are well known, but the pathogenesis is not yet identified clearly. However, evidence that delirium is a neurotoxic factor which develops due primarily to neurotransmitter (cholinergic insufficiency) and inflammatory (increase in stress response/neuroinflammation) mechanisms is increasing each passing day. Delirium is associated with serious complications, but can also be treatable if diagnosed early and managed properly. It is important to develop primary and secondary prevention and therefore close contact with the patient, ensuring adequate vision, hearing, nutrition, hydration, and sleep; informing the caregivers about delirium for recognizing early symptoms of delirium, mobilizing the patient as early as possible, and managing the pain are strongly recommended. Besides, clinicians must identify the real underlying medical conditions. If non-pharmacologic interventions are insufficient, pharmacologic therapy should be implemented.
American Journal of Alzheimers Disease and Other Dementias | 2015
Derya Kaya; Pinar Soysal; Ahmet Turan Isik
It is somewhat unexpected to have headaches in patients with idiopathic normal pressure hydrocephalus (INPH) for which the treatment is drainage of cerebrospinal fluid (CSF) using shunt. Moreover, intracranial hypotension syndrome (IHS) can be a challenging diagnosis, as CSF leak may be difficult to confirm as imaging findings can be normal. This report describes a woman with INPH who developed symptoms of IHS after a spinal tap test. There might be cases with IHS, like our case, who do not completely fulfill the current diagnostic criteria in terms of not having any objective evidence of intracranial hypotension but who also could not be explained by other conditions and recovered totally after classical IHS treatment. Current diagnostic criteria for IHS might be revised for those having normal neuroimaging and not accepting lumbar puncture. Nevertheless, when the history, signs, and symptoms strongly suggest IHS even with normal imaging, treatment should be started immediately.
Autoimmune Diseases | 2012
Derya Kaya; Egemen Idiman; Serkan Ozakbas
In a retrospective review of patients with acquired demyelinating disorders of the central nervous system, 133 patients (5.6%) whose diseases started in childhood, were selected from 2369 patients, who had medical records in the Neurology Department of Dokuz Eylul University. Out of 133, 98 had relapsing remitting multiple sclerosis, 21 had secondary progressive multiple sclerosis, 8 had clinically isolated syndrome, 3 had neuromyelitis optica, 2 had Marburg disease, and 1 had radiologically isolated syndrome. In 55 patients (41.3%), disease onset was before age 16. Polysymptomatic presentation (22.6%) was the most common initial feature. The EDSS scores ranged from 0 to 9 with a median of 2.0 (2.22 ± 1.88) for 126 patients. MRI records of 111 patients were obtained. 97 patients had clinically definite multiple sclerosis. 11 MS patients (11.3%) did not initially present the diagnostic MRI features. All of the remaining multiple sclerosis patients fulfilled Barkhof-Tintore criteria (100%) and 88.7% fulfilled KIDMUS criteria. Cranial MRI of NMO patients was normal. Our findings demonstrate some important clinical and paraclinical features that can help the literature on acquired demyelinating disorders of childhood by utilizing data from Western Turkey.
Türk Oftalmoloji Dergisi | 2018
Süleyman Kaynak; Mahmut Kaya; Derya Kaya
Choroidal neovascularization due to age-related macular degeneration (AMD) is currently treated successfully with anti-vascular endothelial growth factor (VEGF) intravitreal agents. Emerging evidence suggests that anti-VEGF treatment may potentially increase development of geographic atrophy. However, there is not yet direct proof of a causal relationship between geographic atrophy and use of anti-VEGF agents in neovaskuler AMD. The aim of this review is to discuss the evidence concerning the association between anti-VEGF therapy and progression of geographic atrophy.
Ophthalmologica | 2018
Mahmut Kaya; Derya Kaya; Egemen Idiman; Nilüfer Koçak; Taylan Ozturk; Ziya Ayhan; Zekiye Altun; Süleyman Kaynak
Purpose: To determine whether serum chitinase-3-like protein 1 (CHI3L1) and interleukin-6 (IL-6) levels correlate with serous retinal detachment (SRD) in diabetic macular edema (DME) using spectral-domain optical coherence tomography (SD-OCT). Methods: In this cross-sectional case-control study, 394 patients (treatment-naive DME patients, n = 218; diabetic patients without DME, n = 96; nondiabetic controls, n = 80) were included in the study. Eyes were classified according to SD-OCT features of DME: SRD, cystoid macular edema (CMO), and diffuse retinal thickness (DRT). Serum concentrations of CHI3L1 and IL-6 were analyzed using enzyme-linked immunosorbent assay. Results: Serum CHI3L1 and IL-6 levels were significantly higher in DME with SRD compared to patients with CMO and DRT (p < 0.001 for all groups). Multivariate regression analysis showed that CHI3L1 and IL-6 had a stronger influence on the presence of SRD in DME (r = 1.162, p = 0.026, and r = 1.242, p = 0.016, respectively). Serum concentration of CHI3L1 was significantly correlated with that of IL-6 (r = 0.386, p = 0.0015). Conclusions: Our data suggest that serum concentrations of CHI3L1 and IL-6 are involved in the process of SRD in DME. CHI3L1 can be investigated further as a new diagnostic biomarker for DME with SRD.