Publications by authors named "Tosun A"

Objectives: The aim of this study was to measure the reliability of the expanded and revised Melbourne Cerebral Palsy Hip Classification System (r-MCPHCS) across different medical specialties.

Patients And Methods: Anteroposterior pelvic radiographs of a total of 44 patients (20 males, 24 females; median 16.7 years; range, 12 to 32 years) with cerebral palsy (CP) were analyzed between January 2005 and December 2020.

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Transient receptor potential channel 1 (TRPC1) is a widely expressed mechanosensitive ion channel located within the endoplasmic reticulum membrane, crucial for refilling depleted internal calcium stores during activation of calcium-dependent signaling pathways. Here, we demonstrate that TRPC1 activity is protective within cartilage homeostasis in the prevention of cellular senescence associated cartilage breakdown during mechanical and inflammatory challenge. We reveal that TRPC1 loss is associated with early stages of osteoarthritis (OA) and plays a non-redundant role in calcium signaling in chondrocytes.

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In this Editorial on behalf of the PLOS Medicine Editors, Alexandra Tosun discusses how ultra-processed food has found itself at the center of a growing storm of criticism, the complexities of the ongoing nutrition debate and why stakeholders must be held to higher standards.

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Article Synopsis
  • Diabetes mellitus can cause the parotid gland to non-inflamedly enlarge and affects blood flow in small vessels.
  • A study compared 38 people with diabetes to 38 healthy controls using ultrasound to measure the parotid glands' volume, stiffness, and blood supply.
  • Results showed diabetic patients had larger parotid glands and lower microvascularity, with those on antidiabetic medication having even larger glands; longer diabetes duration correlated with reduced blood supply.
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Purpose: The presence of right ventricular dysfunction indicates a higher risk status in patients with pulmonary embolism (PE). The RV strain evaluated by speckle-tracking echocardiography seems to be more reliable method in the evaluation of RV dysfunction as compared to standard echocardiographic measures. In this study, we aimed to determine the value of myocardial-work indices in evaluating serial changes of RV function in acute PE.

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Background: AngioJet rheolytic thrombectomy (ART) system has been widely used as a catheter-directed treatment (CDT) method in acute pulmonary embolism (PE), however, there has been a controversy regarding the safety of its use. In this systematic review and meta-analysis, we evaluated the efficacy and safety outcomes of ART in patients with PE.

Methods: Our meta-analysis have been based on search in the MEDLINE, EMBASE, and Cochrane Library for studies published up to August 2022.

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Background: Various etiologies may underlie optic neuritis, including autoantibody-mediated disorders described in the last decade. We re-examined demographic, clinical, laboratory features and prognostic factors in pediatric patients with autoimmune optic neuritis according to current knowledge.

Methods: Cases of pediatric ON from 27 centers in Türkiye diagnosed between 2009 and 2022 were included for retrospective evaluation.

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The aim of the present study was to investigate whether patients with psoriasis are prone to urolithiasis. Prospective analysis of 67 patients diagnosed as psoriasis (PS group) and 65 volunteers who had never been diagnosed as psoriasis (NPS group) was performed. The levels of oxalate, citrate, calcium, uric acid, magnesium, creatinine, and sodium were evaluated by analyzing the 24-h urine samples.

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Background: The link between rosacea and various systemic conditions has been growing in prominence, even though the relationship between rosacea and cardiovascular disease remains a subject of debate in current research.

Aims: Detecting the connection between rosacea and subclinical atherosclerosis using laboratory and ultrasonographic parameters.

Methods: Fifty rosacea patients and 49 control were included in the study.

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Introduction: Physiological, hormonal, or biochemical changes may be related to the increased morbidity of COVID-19 during pregnancy. Our knowledge remains limited about which pregnant women will worsen and develop complications. The aim was to evaluate the maternal, fetal, and neonatal outcomes in hospitalized pregnant women who delivered while infected with acute COVID-19 and to investigate the possible predictors of poor prognosis in a tertiary pandemic center.

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Article Synopsis
  • The study focuses on how pulmonary artery (PA) enlargement in patients with severe pulmonary hypertension (PH) can indicate potential complications like left main coronary artery compression (LMCA-Co) and Ortner syndrome, which causes hoarseness.
  • Researchers analyzed data from 865 PH patients who underwent tests to assess these complications and evaluated the correlation between PA size and clinical symptoms.
  • Results showed that larger PA diameters were strongly linked to both LMCA-Co and hoarseness, suggesting that monitoring PA size could help predict these serious issues in patients with PH.
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  • The study investigated how well ECG readings can predict pulmonary hemodynamics using right heart catheterization data from 562 patients over 16 years.
  • Significant correlations were found between specific ECG measures (like P-wave amplitude and R/S ratio) and pulmonary pressures and resistance, while some measures did not correlate.
  • Key ECG indicators effectively predicted pulmonary hypertension and precapillary hypertension, suggesting that certain ECG metrics could be useful for early identification of these conditions.
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Unlabelled: In the patient who complained of dizziness, thrombus was observed in the right vertebral artery. Compression was detected in the nerve root due to compensatory hypertrophy in the left vertebral artery. In conclusion, in cases of unilateral vertebral artery thrombosis, should be aware of the pathologies that may develop in adjacent structures due to compensatory hypertrophy.

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Unlabelled: This article describes the case of a 56-year-old male patient who presented with a headache and swelling on the left side of his head. Medical examinations, including non-contrast computed tomography (CT) and contrast-enhanced magnetic resonance imaging (MRI), revealed the presence of an expansile soft tissue lesion in the frontoparietal bone structures, causing compression of the brain tissue. Further immunohistochemical analysis confirmed the diagnosis of extramedullary hematopoiesis (EMH) in the bone lesion, with predominant involvement of the myeloid series.

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Aycan Ünalp, Yiğithan Güzin, Bülent Ünay, Ayşe Tosun, Dilek Çavuşoğlu, Hande Gazeteci Tekin, Semra Hız Kurul, Ebru Arhan, Selvinaz Edizer, Gülten Öztürk, Uluç Yiş, Ünsal Yılmaz, Turkish Rare Epilepsies Study Group, Clinical and genetic evaluations of rare childhood epilepsies in Turkey's national cohort, Epileptic Disorders, 2023, (https://doi.org/10.1002/epd2.

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Background: In this study, it was aimed to evaluate the effect of a physical activity program applied to Alzheimer's disease patients on cognitive functions and depression.

Method: This study is a randomised controlled study designed in a pre-test post-test design. It was conducted with 72 patients in total, 36 of whom were interventions and 36 were controls, at the Alzheimer's Day Life Centre.

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Article Synopsis
  • This study introduces a new index that includes right ventricle function to better evaluate patients with acute pulmonary embolism, addressing limitations of existing models.
  • The research analyzed data from 502 patients who underwent specific imaging techniques during emergency room admission and found that the new index correlated with long-term mortality, despite being less effective for predicting immediate in-hospital mortality.
  • Results suggest that higher index values reflect more severe clinical conditions and long-term mortality risk, indicating the potential usefulness of this index for patient management.
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Background: Although an adopted echocardiography algorithm based on tricuspid regurgitation jet peak velocity and suggestive findings for pulmonary hypertension has been utilized in the non-invasive prediction of pulmonary hypertension probability, the reliability of this approach for the updated hemodynamic definition of pulmonary hypertension remains to be determined. In this study, for the first time, we aimed to evaluate the tricuspid regurgitation jet peak velocity and suggestive findings in predicting the probability of pulmonary hypertension as defined by mean pulmonary arterial pressure > 20 mm Hg and > 25 mm Hg, respectively.

Methods: Our study group was comprised of the retrospectively evaluated 1300 patients (age 53.

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  • The study aimed to assess the clinical and demographic characteristics, as well as treatment options, for pediatric patients with chronic inflammatory demyelinating polyneuropathy (CIDP) in Turkey over an 11-year period.
  • A total of 43 patients were reviewed, showing that both first-line treatments (IVIg alone vs. IVIg combined with steroids) were equally effective in improving patient outcomes, as indicated by significant reductions in the modified Rankin scale scores after treatment.
  • Additionally, patients with abnormal MRI findings had worse pretreatment scores compared to those with normal MRI, suggesting that imaging results may correlate with disease severity at diagnosis.
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Lower body implants are designed according to the boundary conditions of gait data and tested against. However, due to diversity in cultural backgrounds, religious rituals might cause different ranges of motion and different loading patterns. Especially in the Eastern part of the world, diverse Activities of Daily Living (ADL) consist of salat, yoga rituals, and different style sitting postures.

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Background: Pulmonary embolism severity index, its simplified version, and shock index have been used for risk stratification in acute pulmonary embolism. In this study, we proposed a modification in severity index and evaluated the correlates and prognostic value of modification in severity index in this setting.

Methods: The study group comprised retrospectively evaluated 181 patients with acute pulmonary embolism.

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