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    A rare entity of acquired idiopathic generalised anhidrosis which has been successfully treated with pulse steroid therapy: Does the histopathology predict the treatment response?
    (Ifjusagi Lap-es Konyvkiado Vallalat, 2020) Öktem, Ece Özdemir; Çankaya, Şeyda; Uykur, Abdullah Burak; Erdem, Nazan Şimşek; Yuluğ, Burak
    Acquired idiopathic generalised anhidrosis is an uncommon sweating disorder characterized by loss of sweating in the absence of any neurologic, metabolic or sweat gland abnormalities. Although some possible immunological and structural mechanisms have been proposed for this rare entity, the definitive pathophysiology is still unclear. Despite some successfully treated cases with systemic corticosteroid application, the dose and route of steroid application are controversial. Here, we present a 41-yearold man with lack of generalised sweating who has been successfully treated with high dose pulse intravenous prednisolone. We have discussed his clinical and histopathological findings as well as the treatment options in view of the current literature. © 2020 Ifjusagi Lap-es Konyvkiado Vallalat. All rights reserved.
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    Paracetamol alters empathy scores in healthy and headache subjects: Functional MRI correlates
    (Elsevier Sci Ltd, 2020) Çankaya, Şeyda; Öktem, Ece Özdemir; Saatçi, Özlem; Vehoğlu, Halil Aziz; Uygur, Abdullah Burak; Özşimşeka, Ahmet; Yuluğ, Burak
    Introduction: Although previous evidence suggest that paracetamol decreases psychological reactivity in healthy subjects, there is still no confirmed correlation between the empathy scores and brain activity in healthy and headache patients after paracetamol treatment. Material and methods: The study group included 16 patients with tension-type headache, and 12 healthy age-and sex-matched controls. After a detailed neurological examination Positive and Negative Affect Schedule (PANAS) and Empathy for Pain Scale (EPS) were applied to all subjects. Next, 1000 mg paracetamol tablet was administered orally, after administration of paracetamol, EPS were repeated, and fMRI was performed to all subjects. Results: We have revealed increased empathy scores in the headache group after the paracetamol treatment which were associated with significant alterations in brain regions which play a critical role in the processing of empathy. Discussion: The observed neuroimaging and clinical difference between healthy and headache subjects could be related to the fact that pain perception in healthy subjects might differ in some aspects from the mechanisms of empathy in headache-experienced patients. Conclusion: To the best of our knowledge, this is the first study that evaluated the paracetamol treatment and neural networks' correlation with pain empathy in healthy and headache individuals. (C) 2020 Elsevier Ltd. All rights reserved.
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    Topological network mechanisms of clinical response to antidepressant treatment in drug-naive major depressive disorder
    (Churchill Livingstone, 2021) Uykur, Abdullah Burak; Yıldız, Sultan; Velioğlu, Halil Aziz; Özşimşek, Ahmet; Öktem, Ece Özdemir; Bayraktaroğlu, Zübeyir; Ergün, Tarkan; Lakadamyalı, Hatice; Hanoğlu, Lütfi; Hanoğlu, Lütfi; Çankaya, Şeyda; Saatçi, Özlem; Yuluğ, Burak
    Aim: There is rapidly increasing evidence that remission of MDD is associated with substantial changes in functional brain connectivity. These New data have provided a holistic view on the mechanism of antidepressants on multiple levels that goes beyond their conventional effects on neurotransmitters. Method: The study was approved by the Local Ethics Committee of Istanbul Medipol University (10840098-604.01.01-E.65129) and followed the Helsinki Declaration principles. In our study, we have evaluated the effect of six weeks of treatment with antidepressants (escitalopram and duloxetine), and tested the underlying brain functional connectivity through a Graph analysis approach in a well-defined first-episode, drug-naive, and non-comorbid population with MDD. Results: Beyond indicating that there was a significant correlation between the antidepressant response and topological characteristics of the brain, our results suggested that global rather than regional network alterations may be implicated in the antidepressant effect. Conclusion: Despite the small-sample size and non-controlled study design, our study provides important and relevant clinical data regarding the underlying mechanisms of the antidepressants on topological dynamics in the human brain. © 2020 Elsevier Ltd