Publications by authors named "Vural G"

Transcranial Direct Current Stimulation (tDCS) is a non-invasive brain stimulation technique used to modulates cortical brain activity. However, its effects on brain metabolites within the dorsolateral prefrontal cortex (DLPFC), a crucial area targeted for brain stimulation in mental disorders, remain unclear. This study aimed to investigate whether prefrontal tDCS over the left and right DLPFC modulates levels of key metabolites, including gamma-aminobutyric acid (GABA), glutamate (Glu), glutamine/glutamate (Glx), N-acetylaspartate (NAA), near to the target region and to explore potential sex-specific effects on these metabolite concentrations.

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Purpose: To investigate the potential effects of systemic fingolimod treatment on parameters of the anterior segment of the eye and tear film function tests in patients with multiple sclerosis (MS).

Methods: Forty-eight eyes of 24 individuals who were started on systemic fingolimod treatment for relapsing-remitting MS were prospectively enrolled in this study. Patients underwent examinations immediately before initiation of systemic fingolimod treatment, and at the first and sixth months of treatment.

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Article Synopsis
  • The study compared clinical outcomes of rhegmatogenous retinal detachment (RRD) surgeries during COVID-related lockdowns (partial and complete) versus non-COVID periods in a tertiary ophthalmology clinic.
  • A total of 20 cases were analyzed for both partial and complete lockdowns, and 23 cases from non-COVID times, focusing on factors such as visual symptoms duration, lens status, and visual acuity.
  • Results showed no significant differences in surgical approaches or final visual acuity after two years across the different periods, suggesting that lockdowns did not impact the effectiveness of RRD surgeries.
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Previous investigations on the causal neural mechanisms underlying intertemporal decision making focused on the dorsolateral prefrontal cortex as neural substrate of cognitive control. However, little is known, about the causal contributions of further parts of the frontoparietal control network to delaying gratification, including the pre-supplementary motor area (pre-SMA) and posterior parietal cortex (PPC). Conflicting previous evidence related pre-SMA and PPC either to evidence accumulation processes, choice biases, or response caution.

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Article Synopsis
  • The study investigates how lipid profiles and thiol-disulfide homeostasis relate to cognitive impairment, fatigue, and sleep disorders in multiple sclerosis patients.
  • Researchers used various assessment tools to evaluate cognitive functions, fatigue levels, and sleep quality, while also analyzing blood samples for lipid levels and specific enzyme activities.
  • The results showed no link between dysfunctional high-density lipoprotein and the patients' physical or cognitive decline, but indicated that changes in thiol-disulfide balance could be connected to cognitive dysfunction.
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Background/aim: Trunk control, which plays a key role in balance and mobility, decreases in patients with multiple sclerosis (PwMS) and many parameters such as sensory, motor, and musculoskeletal systems affect trunk control. The aim of this study was to compare trunk control, spinal mobility, and spinal posture in PwMS with healthy controls and investigate the relationship between trunk control with spinal posture and spinal mobility in PwMS.

Materials And Methods: The study was completed with 38 PwMS and 38 healthy controls with matched age and sex.

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Background: Walking speed is considered a vital sign of health and better functional outcomes. It is important to assess walking speed both for disease monitoring and before starting rehabilitation. The aim of this study was to examine the reliability, validity, minimal detectable change, and the ideal cutoff time for differentiating patients with multiple sclerosis (PwMS) who fall from PwMS who do not.

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Purpose: Early diagnosis of ovarian cancer (OC) increases survival rates; however, due to low awareness levels, women may be diagnosed with OC at the advanced stage. The aim of this cross-sectional study is to reveal the OC awareness of Turkish women and affecting factors.

Methods: Participants were invited to study via social media tools between February-June 2022.

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Objectives: Corneal confocal microscopy (CCM) is a non-invasive technique that examines the corneal cellular structure. Its use in the detection of small fiber neuropathy is being researched. In our study, we examined the role of CCM in the detection of small fiber neuropathy in diabetic patients, as well as the differences between CCM findings in diabetic patients with and without overt polyneuropathy with neuropathic symptoms.

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Transcranial direct current stimulation (tDCS) of the prefrontal cortex might beneficially influence neurocognitive dysfunctions associated with major depressive disorder (MDD). However, previous studies of neurocognitive effects of tDCS have been inconclusive. In the current study, we analyzed longitudinal, neurocognitive data from 101 participants of a randomized controlled multicenter trial (DepressionDC), investigating the efficacy of bifrontal tDCS (2 mA, 30 min/d, for 6 weeks) in patients with MDD and insufficient response to selective serotonin reuptake inhibitors (SSRI).

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Optic neuritis frequently occurs during the clinical course of multiple sclerosis (MS). In this condition, demyelination of the optic nerve occurs, which electrophysiologically causes a delay in P100 wave latency. Sensitive cholesterol homeostasis is critical for the formation of the myelin sheath and for myelin to become functionally mature.

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Cesarean delivery rates have been increasing which leads to a rise the problems experienced. After cesarean deliveries important problems for the mother and baby may be seen. The most common problems in the mothers after cesarean delivery are; bleeding, infection, fatigue, sleep disorders, breast problems, self-care issues, and sense of inadequacy in care of the newborn.

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Background: During the first interaction between the father and the infant, touch can be very important especially father-infant skin-to-skin contact. Few studies have focused on the effect of kangaroo care (KC) on paternal attachment.

Purpose: This randomized controlled study was conducted to determine the effect of KC on paternal attachment.

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Background: Patients with Multiple Sclerosis (PwMS) may experience a decline in balance, gait, and mobility as well as an increase in fear of falling (FoF) and fatigue due to weaker muscles and proprioceptive loss in their lower limbs. The study aimed to compare lower extremity muscle strength and proprioception, balance, functional mobility, gait, FoF, and fatigue between PwMS and healthy controls and to investigate the relationship between lower extremity muscle strength and proprioception and balance, functional mobility, gait, FoF, and fatigue in PwMS.

Methods: The study was completed with 35 PwMS and 35 healthy controls with matching age and gender.

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Objective: Immunoglobulin G4-related disease (IgG4-RD) and chronic tonsillitis are both chronic fibroinflammatory diseases in which tissue atrophy is sometimes observed. In this study, the authors aimed to investigate the pathologic IgG4 positivity in tonsillectomy specimens and hypothesized to name it as a new clinical component of IgG4-RD if there is significant IgG4 positivity in chronic tonsillitis.

Methods: A total of 73 patients who underwent tonsillectomy for chronic tonsillitis were included in this study.

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The coronavirus disease 2019 (COVID-19) may lead to a wide spectrum of clinical manifestations ranging from asymptomatic to symptomatic by having targets on various tissues such as lung parenchyma and myocardium (Shahrbaf et al., Cardiovasc Hematol Disord Drug Targets. 21(2):88-90, 2021).

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Background: Acute cerebral infarction (ACI) occurs as a result of instant disruption of vascular flow that causes disbalance between oxidative/antioxidative activity. We examined the relationship of serum neuro-oxidative stress parameters with stroke severity and infarct volume in ACI and emphasized the qualitative importance of high-density lipoprotein (HDL) on its relationship with myeloperoxidase (MPO) and paraoxonase-1 (PON1) in the acute period of stroke.

Methods: One hundred ACI patients applied within the first 24 h and 50 healthy volunteers were included.

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Purpose: To compare the central corneal thickness (CCT), the structural properties of the anterior chamber and optic disc in patients with central retinal vein occlusion (CRVO), branch retinal vein occlusion (BRVO), and controls.

Material And Methods: In this prospective study, 31 eyes of 31 CRVO patients (group 1) (mean age: 65.7 ± 10.

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Purpose: To evaluate whether baseline spectral-domain optical coherence tomography characteristics of intraretinal cystoid spaces predict visual outcomes in patients receiving intravitreal antivascular endothelial growth factor injection therapy (bevacizumab 1.25mg/0.05ml) for diabetic cystoid macular edema.

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The structure of the delivery room, the protection of privacy, the distance of the hospital and institution policies are important factors affecting women's birth experiences. This study aimed to give voice mothers' expectations of midwives during the birth process, the care received by them, and their views about the delivery environment. The research was conducted with primipara mothers in a public hospital through in-depth interviews in a qualitative pattern based on the interpretive content analysis approach.

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Objective: Dysmenorrhea is defined as menstrual pain that develops due to uterine menstrual contractions. When the literature is examined, there are a limited number of studies about the frequency of primary dysmenorrhea (PD), influencing factors, and complementary and alternative treatment methods (CAMs) in Turkey. In this study, the aim was to determine the risk factors for PD and the effect of CAM use on PD in female university students.

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Neuromyelitis optica (NMO), also known as Devic's disease, is a rare, autoimmune, and recurrent demyelinating disorder that primarily affects the spinal cord and optic nerve. We report a case with recurrent optic neuritis caused by the paraneoplastic NMO spectrum disorder in the setting of a gastric neuroendocrine tumor 2 weeks after receiving an inactive COVID-19 vaccine.

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Navigating through our environment raises challenges for perception by generating salient background visual motion and eliciting prominent eye movements to stabilise the retinal image. It remains unclear if exogenous spatial attentional orienting is possible during background motion and the eye movements it causes and whether this compromises the underlying neural processing. To test this, we combined exogenous orienting, visual scene motion, and electroencephalography (EEG).

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: High parity women are more likely to have poor quality of life during pregnancy than low parity women. Thus, the aim of this study was to explore the lived experience of healthy pregnancy among high parity women in North Jordan. : A descriptive phenomenological design was employed in this study to complement previously published quantitative results.

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Objectives: The aim of this study is the documentation of human papilloma virus (HPV) frequency and types seen in the city of Istanbul, Turkey, as well as evaluation of the relationship between these subtypes and cytological and pathological diagnoses.

Methods: 4879 cases were studied in our molecular pathology department between 2001 and 2019 in Istanbul. Between 2001 and 2010, 1692 cases were screened for HPV 6, 11, 16, 18, 31, and 33 by conventional hybridization and polymerase chain reaction (PCR).

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