Publications by authors named "Yagci M"

Silk fibroin (SF), a natural polymer with very desirable physicochemical and biological properties, is an ideal material for crafting biocompatible scaffolds in tissue engineering. However, conventional methods for removing the sericin layer and dissolving SF often involve environmentally harmful reagents and processes, requiring extensive dialysis procedures to purify the fibers produced. Such processes may also damage the surface and bulk properties of the SF produced.

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The widespread use of wireless communication technologies has increased human exposure to radiofrequency electromagnetic fields (RF-EMFs). Considering the brain's close proximity to mobile phones and its entirely electrical transmission network, it emerges as the organ most profoundly impacted by the RF field. This study aims to investigate the potential effects of RF radiation on cell viability, apoptosis, and gene expressions in glioblastoma cells (U118-MG) at different exposure times (1, 24, and 48 h).

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Introduction: In the OPTIMISMM trial, pomalidomide/bortezomib/dexamethasone (PVd) significantly prolonged median progression-free survival (PFS) versus bortezomib/dexamethasone (Vd) in lenalidomide-exposed relapsed and refractory multiple myeloma (RRMM). We report final overall survival (OS) and updated efficacy analyses.

Methods: Adults with RRMM who had 1-3 prior regimens, including lenalidomide (≥ 2 cycles), were assigned (1:1) to PVd or Vd.

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High-entropy alloys (HEAs) have garnered significant attention in different fields due to their exceptional mechanical and physical properties, making them promising candidates for various applications. Several techniques, including physical vapor deposition and pulsed laser deposition (PLD), have been employed for the fabrication of HEA thin films. In this study, we explore a novel approach to synthesizing the lightweight HEA (LWHEA) AlCrFeMnTi using PLD in air at atmospheric pressure with a particular focus on the influence of the laser wavelength on the deposition process and the resulting alloy characteristics.

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The electrochemical CO reduction reaction (CORR) holds tremendous promise as a strategy for lowering atmospheric CO levels and creating new clean energy sources. The conversion of CORR to CO, in particular, has garnered significant scientific interest due to its industrial feasibility. Within this context, the CuZn-based electrocatalyst presents an attractive alternative to conventional CO-selective electrocatalysts, which are often costly and scarce.

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Introduction: A proportion of patients with multiple myeloma (MM) are older and/or have comorbidities, requiring dose adjustments. Data from OPTIMISMM (NCT01734928) supported the use of pomalidomide, bortezomib, and dexamethasone (PVd) for treating relapsed/refractory MM. This subanalysis of OPTIMISMM assessed outcome by frailty and/or bortezomib dose adjustment.

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Article Synopsis
  • Patients with chronic lymphocytic leukemia (CLL) have a significantly heightened risk of developing other malignancies (OMs), with a study tracking nearly 20,000 CLL patients revealing 3,513 OMs diagnosed over 129,254 years of follow-up.
  • The study found that treatment with fludarabine and cyclophosphamide increased the likelihood of developing myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML), while non-melanoma skin cancer (NMSC) and prostate cancer were common solid tumors in treated patients.
  • Importantly, patients with CLL who developed OMs had lower overall survival rates, especially those diagnosed with AML and MDS, highlighting that C
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Background: In the GLOW study, fixed-duration ibrutinib-venetoclax showed superior progression-free survival versus chlorambucil-obinutuzumab in patients with previously untreated chronic lymphocytic leukaemia who were older or had comorbidities, or both, at a median follow up of 27·7 months. In this Article, we report updated outcomes from GLOW after a 46-month median follow-up.

Methods: GLOW was a randomised, multicentre, phase 3 study done at 67 hospital centres across 14 countries.

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Background: Many studies have discussed the effects of serum vitamin D deficiency in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) patients. This study aimed to investigate the relationship between SARS-CoV-2 infection severity and free vitamin D (FVD) and bioavailable vitamin D (BAVD) levels in children.

Methods: A prospective case-control study design was used.

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Autologous stem cell transplantation (ASCT) remains the mainstay of the treatment in newly diagnosed transplant-eligible multiple myeloma (MM) patients. This retrospective study was performed to investigate the potential prognostic markers which may modify transplant course in a total of 256 ASCT recipients [median age: 58 (30-74) years; male/female: 138/118], including pretransplant (PET) and day + 60 (PET) PET/CT assessments and comparative analysis of melphalan (Mel) dose. Better responses with significantly higher complete response/very good partial response rates were achieved in patients who proceeded to transplant within 301 days from diagnosis (p < 0.

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Objective: The discovery of imatinib was a milestone for chronic myeloid leukemia (CML). As the life expectancy of CML patients has approached that of the general population, research has shifted towards improving quality of life and economic considerations. After 2010, it was shown that some patients could maintain molecular response even after discontinuing imatinib.

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Allogeneic hematopoietic stem cell transplantation (alloHCT) is associated with severe complications, most of which share a common physiopathological background characterized by endothelial dysfunction. A novel risk assessment model, endothelial activation and stress index (EASIX), has been introduced as a predictor of endothelial activation. This retrospective study was performed to evaluate the predictive impact of EASIX/modified-EASIX (mEASIX) on transplant outcome.

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Introduction: We aim to evaluate of the relationship between high mobility gene box-1 (HMGB1) levels and clinical, laboratory and histopathological findings at diagnosis and in remission in children with Celiac Disease (CD).

Material And Methods: The study included 36 celiac patients at diagnosis, 36 celiac patients in remission, and 36 healthy controls. Patients with intestinal pathologies other than CD, and accompanying inflammatory and/or autoimmune diseases were excluded.

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  • * In a study of 90 patients, flow cytometry (FCM) showed higher sensitivity (94.2%) compared to cytology (68.5%) for diagnosing CNS involvement, although cytology remains the gold standard.
  • * The findings suggest that FCM could be a valuable routine diagnostic tool alongside cytology, as it can detect smaller numbers of malignant cells more effectively and offers quicker results.
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  • Ibrutinib + venetoclax treatment shows improved progression-free survival (PFS) compared to chlorambucil + obinutuzumab for older patients with untreated chronic lymphocytic leukemia (CLL).
  • The analysis highlights the importance of undetectable minimal residual disease (uMRD) post-treatment, showing significant rates of uMRD in patients receiving ibrutinib + venetoclax (40.6% in bone marrow and 43.4% in blood) compared to lower rates in the other treatment group.
  • High PFS rates were observed in patients treated with ibrutinib + venetoclax after one year, regardless of their MRD status or immunoglobulin heavy
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  • Opportunistic fungal infections like invasive aspergillosis (IA) are a significant health threat for immunocompromised patients, with around 250,000 cases yearly, and early diagnosis and treatment can help lower mortality rates.
  • This study aimed to evaluate the effectiveness of two diagnostic tests—galactomannan and beta-glucan—for diagnosing invasive pulmonary aspergillosis (IPA) in 60 patients at Gazi University Hospital.
  • Results showed that the galactomannan test had a sensitivity of 77.8% and specificity of 96.7%, while the beta-glucan test had a lower sensitivity of 61.1%, highlighting the relevance of risk factors like steroid use in IPA development.
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  • This study aimed to understand the long-term gastrointestinal effects and gut-brain interaction disorders in patients hospitalized for COVID-19 compared to those without the infection.
  • The analysis included data from 883 patients, revealing that gastrointestinal symptoms were more prevalent in COVID-19 patients during hospitalization, but by the 12-month follow-up, controls reported higher rates of constipation and hard stools.
  • Additionally, COVID-19 patients showed a significantly higher prevalence of irritable bowel syndrome (IBS) compared to controls, with certain factors like allergies and medication usage being associated with IBS diagnosis.
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Introduction: This is the first study of simultaneous occurrences of Familial Mediterranean Fever (FMF) in patients with haemophilia.

Aim: The aim was to investigate the frequency and clinical characteristics of FMF in patients with severe haemophilia.

Methods: Our study included 30 patients with severe haemophilia (26 haemophilia A and four haemophilia B).

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  • Multiple myeloma (MM) is a cancer primarily affecting older adults, and this study focused on assessing the health and functionality of newly diagnosed patients before and after treatment.
  • The study involved 37 patients aged 50 and older, measuring their performance status and conducting a comprehensive geriatric assessment (CGA) at diagnosis and after 4 cycles of induction chemotherapy.
  • Findings indicated that 40.7% of patients showed improvement in performance status post-treatment, with frail patients and those with more health issues experiencing less improvement, suggesting CGA can help predict potential recovery and suitability for future treatments like transplants.
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Background: We evaluate here the effect of the ketogenic diet (KD) on children with drug-resistant epilepsy (DRE) in terms of clinical effectiveness, anthropometric measurements, and some electroencephalogram (EEG) and biochemical findings.

Methods: Included in the study were 18 children (median age 70 months, 61.1% female) who received the classical KD and modified Atkins diet (MAD) for at least one year due to DRE.

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Introduction: The presence of high-risk chromosomal abnormalities [t(4;14), del(17p), and t(14;16)] has been linked with inferior outcomes in patients with multiple myeloma (MM). A prespecified interim analysis of the Phase 3 IKEMA study (NCT03275285) demonstrated that isatuximab (Isa) + carfilzomib (K) and dexamethasone (d; Isa-Kd) significantly improved progression-free survival (PFS) versus Kd in patients with relapsed MM. This prespecified subgroup analysis of IKEMA examined efficacy and safety in patients with high-risk cytogenetics.

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Article Synopsis
  • - The study analyzed the effectiveness and safety of isatuximab (Isa) combined with carfilzomib-dexamethasone (Kd) in older (≥70 years) versus younger (<70 years) patients with relapsed multiple myeloma (MM), highlighting its potential benefits across age groups.
  • - Results showed that the Isa-Kd combination significantly improved progression-free survival (PFS) and response rates (including very good partial response and complete response) in both age groups, particularly in elderly patients.
  • - Although Isa-Kd had a higher rate of grade ≥3 treatment-emergent adverse events, fewer elderly patients discontinued treatment due to these side effects, indicating that Isa-Kd has a manageable
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