Publications by authors named "Aykut A"

Background/objectives: Vitamin D helps the mineralization of bone, teeth, and other calcified tissues by regulating calcium-phosphate metabolism. The nuclear activation of the vitamin D receptor () gene is essential for the effectiveness of vitamin D. The main objective of this study is to determine the role of vitamin D levels and gene variants in dental caries.

View Article and Find Full Text PDF

Introduction: Gaucher disease (GD) is a lysosomal storage disorder causing systemic and skeletal complications. This study evaluates bone health in adult GD type 1 patients, focusing on skeletal complications, bone mineral density (BMD), and biochemical markers.

Material And Methods: A cohort of adult GD type 1 patients followed up at Ege University Pediatric Metabolism Department were retrospectively examined.

View Article and Find Full Text PDF

Unlabelled: Glutaric aciduria type 1 (GA1) is a rare metabolic disorder characterized by a deficiency in the enzyme glutaryl-CoA dehydrogenase. This study aims to present the clinical, biochemical, genetic, and neuroimaging findings of GA1 patients, emphasizing the importance of early detection and the potential benefits of incorporating GA1 into NBS programs. The demographic, clinical, and laboratory findings of GA1 patients were reviewed retrospectively.

View Article and Find Full Text PDF

Purpose: To describe the advanced multimodal imaging findings of patients with bilateral diffuse uveal melanocytic proliferation (BDUMP) and the changes in these findings over time.

Methods: Fundus photography, fundus autofluorescence (FAF), fundus fluorescein angiography (FA), spectral domain optical coherence tomography (OCT), B-scan ultrasonography (US), and ultrasound biomicroscopy (UBM) images of the patients diagnosed with BDUMP at a single institution between years 2006-2023 were evaluated.

Results: Sixteen eyes of 8 patients with BDUMP were included.

View Article and Find Full Text PDF

Objectives: To conduct the first bibliometric analysis of retinoblastoma research in Türkiye and identify leading institutions, authors, collaboration patterns, and potential growth areas.

Materials And Methods: We conducted a search on international databases (Web of Science [WoS] and Scopus), a national database (TR Dizin), and gray literature sources (thesis/Scientific and Technological Research Council of Türkiye project reports). Data were cleaned and analyzed using bibliometric tools, including Open Refine and VOSviewer.

View Article and Find Full Text PDF

Objective: To compare one-year anatomical and functional results of switching to an on-label intravitreal anti-vascular endothelial growth factor (anti-VEGF) agent (intravitreal ranibizumab [IVR] or aflibercept [IVA]) after treatment failure with three loading doses of off-label intravitreal bevacizumab (IVB), which is mandatory in the treatment of neovascular age-related macular degeneration (nAMD) to get reimbursement from Social Security Institution in Turkiye.

Methods: This comparative, real-life, retrospective cohort study included treatment-naïve nAMD patients treated starting with three loading doses of IVB, switched to three loading doses of IVR and IVA due to treatment failure after IVB loading, and followed up one year with a treat-and-extend (T&E) protocol with 2-week extension/shortening intervals. The primary outcomes were changes in best-corrected visual acuity (BCVA; logMAR) and central macular thickness (CMT, µm) one year after the switch, and the secondary outcomes were maximum treatment intervals, number of injections, and disease activity rates.

View Article and Find Full Text PDF
Article Synopsis
  • Inborn errors of immunity (IEI) are genetic diseases leading to immune system dysfunction, with this study focusing on patients diagnosed in a pediatric intensive care unit (PICU).
  • Out of 753 admissions over three years, 33 new IEI cases were identified, with a higher prevalence of immunodeficiencies with immune dysregulation and combined immunodeficiencies, often triggered by severe viral and life-threatening infections.
  • The study found a high mortality rate of 58%, emphasizing the critical need for early diagnosis, treatment, and improved screening methods for better outcomes in IEI patients.
View Article and Find Full Text PDF

Next-generation sequencing (NGS) coupled with bioinformatic tools has revolutionized the detection of copy number variations (CNVs), which are implicated in the emergence of Mendelian disorders. In this study, we evaluated the diagnostic yield of exome sequencing-based CNV analysis in 449 patients with suspected Mendelian disorders. We aimed to assess the diagnostic yield of this recently utilized method and expand the clinical spectrum of intragenic CNVs.

View Article and Find Full Text PDF

Purpose: The aim of this study is to investigate the effect of vitreomacular interface disorders (VMID) on treatment response in patients treated with anti-vascular endothelial growth factor (anti-VEGF) due to diabetic macular edema (DME).

Methods: Three hundred seventy-seven eyes of 239 patients in the MARMASIA Study Group who received intravitreal anti-VEGF treatment (IVT) due to DME were included in the study. The group 1 consisted of 44 eyes of the patients who had not received any treatment before, were followed up regularly for 24 months after at least a 3-month loading dose, and suffered from VMID such as epiretinal membrane, vitreomacular adhesion or traction, and lamellar hole.

View Article and Find Full Text PDF
Article Synopsis
  • The study focuses on a case involving a 49-year-old woman diagnosed with rheumatoid arthritis and subsequent severe immune deficiency due to a homozygous mutation in the LRBA gene, which is crucial for immune regulation.
  • The patient showed various symptoms, including massive splenomegaly, portal hypertension, and a rare type of cystitis associated with mast cells, indicating a complex clinical presentation.
  • This case emphasizes the importance of understanding LRBA's role in immune function and the diverse clinical manifestations linked to its deficiency.
View Article and Find Full Text PDF

Purpose: This study aimed to compare the effect of intravitreal aflibercept (IVA) and ranibizumab (IVR) on the maximal diameter of the largest intraretinal cyst (mdIRC), indicating chronicity in patients with diabetic cystoid macular edema (CME).

Methods: This retrospective, comparative study included a subgroup of patients from the MARMASIA Study with treatment-naïve diabetic CME who had IVA (IVA group) or IVR (IVR group) on a pro re nata regimen after a loading dose of 3-monthly injections and followed-up for 24 months. Best-corrected visual acuity (logMAR), central macular thickness (CMT, µm), and mdIRC (µm) and their changes during the study period in the IVA and IVR groups were compared.

View Article and Find Full Text PDF

Introduction: OpenAI recently introduced the ability to create custom generative pre-trained transformers (cGPTs) using text-based instruction and/or external documents using retrieval-augmented generation (RAG) architecture without coding knowledge. This study aimed to analyze the features of ophthalmology-related cGPTs and explore their potential utilities.

Methods: Data collection took place on January 20 and 21, 2024, and custom GPTs were found by entering ophthalmology keywords into the "Explore GPTS" section of the website.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to assess how different patterns of diabetic macular edema (DME) respond to intravitreal injection therapies, particularly ranibizumab and aflibercept, over a 12-month period.
  • Participants were categorized into four groups based on their OCT features, and their visual acuity and central macular thickness were measured at baseline and after 3, 6, and 12 months.
  • Results showed no significant differences in visual acuity improvement or the number of injections needed among the groups, but group 4 had the highest baseline central macular thickness and the most significant reduction in thickness by month 12.
View Article and Find Full Text PDF

Objective: Postoperative nausea (PN) and vomiting (PONV) in cardiac surgery increases adrenergic stimulation, limits mobilization and oral intake, and can be distressing for patients. The primary aim of our study was to investigate the effect of sevoflurane and propofol anaesthesia on the incidence of PONV in cardiac surgery patients undergoing Enhanced Recovery After Surgery (ERAS) protocol.

Methods: Following ethics committee approval, 62 patients undergoing elective coronary artery bypass surgery with ERAS protocol were included in this prospective randomized study.

View Article and Find Full Text PDF
Article Synopsis
  • Dysmorphologists face challenges due to the diverse phenotypic variability of human faces, particularly when using Next-Generation Phenotyping (NGP) tools, which are often trained on limited data.
  • To address this, the GestaltMatcher Database (GMDB) was created, compiling over 10,980 facial images from various global populations, significantly improving the representation of underrepresented ancestries, especially African and Asian patients.
  • The study found that incorporating data from non-European patients enhanced NGP accuracy by over 11% without compromising performance for European patients, highlighting the importance of diverse datasets in identifying genetic disorders.
View Article and Find Full Text PDF

Human Inborn Errors of Immunity (IEIs) encompass a clinically and genetically heterogeneous group of disorders, ranging from mild cases to severe, life-threatening types. Among these, Primary Immune Regulatory Disorders (PIRDs) constitute a subset of IEIs characterized by diverse clinical phenotypes, prominently featuring severe atopy, autoimmunity, lymphoproliferation, hyperinflammation, autoinflammation, and susceptibility to malignancies. According to the latest report from the International Union of Immunological Societies (IUIS), PIRDs arise from mutations in various genes including LYST, RAB27A, AP3B1, AP3D1, PRF1, UNC13D, STX11, STXBP2, FAAP24, SLC7A7, RASGRP1, CD70, CTPS1, RLTPR, ITK, MAGT1, PRKCD, TNFRSF9, SH2DIA, XIAP, CD27 (TNFRSF7), FAS (TNFRSF6), FASLG (TNFSF6), CASP10, CASP8, FADD, LRBA, STAT3, AIRE, ITCH, ZAP70, TPP2, JAK1, PEPD, FOXP3, IL2RA, CTLA4, BACH2, IL2RB, DEF6, FERMT1, IL10, IL10RA, IL10RB, NFAT5, TGFB1, and RIPK1 genes.

View Article and Find Full Text PDF

Objective: Perioperative multimodal analgesia is an important step in enhanced recovery after surgery (ERAS) care. Many factors, such as preoperative chronic pain and anxiety, may provide information about the expected postoperative pain. In this study, we evaluated preoperative pain and anxiety and investigate their effects on acute postoperative pain in patients undergoing elective cardiac surgery.

View Article and Find Full Text PDF

Objectives: This study aimed to report the demographic and clinical characteristics of diabetic macular edema (DME) patients treated with intravitreal injection (IVI) of anti-vascular endothelial growth factors (anti-VEGF) and provide an overview of outcomes during routine clinical practice in Türkiye.

Materials And Methods: This retrospective, real-world study included 1,372 eyes (854 patients) treated with a pro re nata protocol by 21 ophthalmologists from 8 tertiary clinics on the Asian side of the Marmara region of Türkiye (MARMASIA Study Group). Five cohort groups were established by collecting the patients' baseline and 3, 6, 12, 24, and 36-month follow-up data, where each subsequent cohort may include the previous.

View Article and Find Full Text PDF

Objectives: Carnitine palmitoyltransferase II (CPT II) deficiency is an autosomal recessive disorder of long-chain fatty acid oxidation. Three clinical phenotypes, lethal neonatal form, severe infantile hepatocardiomuscular form, and myopathic form, have been described in CPT II deficiency. The myopathic form is usually mild and can manifest from infancy to adulthood, characterised by recurrent rhabdomyolysis episodes.

View Article and Find Full Text PDF

Objectives: To assess dysfunctional personality beliefs associated with specific personality disorders (PD), as well as psychopathological symptoms and psychological distress levels in central serous chorioretinopathy (CSC) patients.

Material And Methods: This cross-sectional study included acute and chronic CSC patients and age- and sex-matched healthy volunteers. Dysfunctional personality beliefs and psychopathological symptoms assessed with Personality Belief Questionnaire-Short Form and Symptom Check List-90 Revised (SCL-90-R), respectively, were compared between CSC patients and healthy volunteers and between acute and chronic CSC patients.

View Article and Find Full Text PDF

Adenylate cyclase 3 (ADCY3) gene alterations have been found to be associated with obesity. However, few patients with homozygous mutations have been reported so far, and the follow-up procedure and treatment options have not been clarified. A 10-month-old female presented with increased appetite and weight gain.

View Article and Find Full Text PDF

Objective: Noonan syndrome (NS) is characterized by dysmorphic facial features, short stature, congenital heart defects, and varying levels of developmental delays. It is a genetic, multisystem disorder with autosomal dominant inheritance and is the most common of the RASopathies. In approximately 50% of patients, NS is caused by variants in the Protein Tyrosine Phosphatase Non-Receptor Type 11 () gene.

View Article and Find Full Text PDF

Identification of the causes of monogenetic common variable immunodeficiency (CVID) patients has rapidly increased in the last years by means of worldwide availability of appropriate genetic diagnostic methods. However, up to date, very limited numbers of reports demonstrating the role of geography, ethnicity, and consanguinity have been published. Here, we reported the first study of Turkish CVID patients and compared them with the results of three countries from America, Europe, and Asia.

View Article and Find Full Text PDF
Article Synopsis
  • The significant phenotypic variability of human faces complicates the work of dysmorphologists by challenging Next-Generation Phenotyping (NGP) tools, especially when analyzing patients from diverse genetic backgrounds.
  • The research established the GestaltMatcher Database (GMDB), which includes over 10,000 facial images from patients with rare genetic disorders worldwide, striving to improve representation of underrepresented populations, particularly Asian and African patients.
  • The analysis showed that incorporating data from non-European patients enhanced the accuracy of NGP in diagnosing facial disorders without negatively affecting performance on European patients, emphasizing the need for more diverse datasets in medical genetics.
View Article and Find Full Text PDF