Publications by authors named "ERGUN S"

Background: Organs and tissues need to be vascularized during development. Similarly, vascularization is required to engineer thick tissues. How vessels are formed during organogenesis is not fully understood, and vascularization of engineered tissues remains a significant challenge.

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Background: This study evaluates the safety and effectiveness of coil embolization of the superior rectal artery for both emergency and elective treatment of rectal bleeding caused by Goligher grade 4 hemorrhoids, where surgery is contraindicated.

Methods: Between 2019 and 2024, 18 patients (11 males, 7 females) with a mean age of 65±10.3 years were included in the study.

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  • Acanthamoeba species are protozoa that can cause serious eye and CNS infections, and current treatments are often ineffective, especially in specific areas like the eye.
  • The study evaluates the effectiveness of ethanolic fruit extract of E. umbellata, silver nanoparticles derived from it, and lauric acid in killing Acanthamoeba trophozoites and protecting DNA from damage.
  • Results show that these treatments can significantly kill trophozoites and prevent DNA damage, suggesting potential new options for treating Acanthamoeba infections.
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Importance: Increasing evidence supports the oncologic safety of de-escalating axillary surgery for patients with breast cancer after neoadjuvant chemotherapy (NAC).

Objective: To evaluate the oncologic outcomes of de-escalating axillary surgery among patients with clinically node (cN)-positive breast cancer and patients whose disease became cN negative after NAC (ycN negative).

Design, Setting, And Participants: In the NEOSENTITURK MF-1803 prospective cohort registry trial, patients from 37 centers with cT1-4N1-3M0 disease treated with sentinel lymph node biopsy (SLNB) or targeted axillary dissection (TAD) alone or with ypN-negative or ypN-positive disease after NAC were recruited between February 15, 2019, and January 1, 2023, and evaluated.

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A 45-day feeding study was carried out to assess the immune-stimulatory effects of capsicum oleoresin when added to rainbow trout diets. A total of 450 fish (mean weight: 155.20 ± 1.

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Introduction: The glycoprotein Carcinoembryonic Antigen-related Cell Adhesion Molecule 1 (CEACAM1), also known as CD66a, is a member of the immunoglobulin superfamily. It is expressed in a variety of tissues including epithelial, immune, as well as endothelial cells, and is crucial to diverse physiological and pathological mechanisms. This review aims to provide a comprehensive understanding of CEACAM1's multifaceted roles in vascular biology and inflammatory processes.

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  • The study aimed to explore the relationship between Epstein-Barr virus (EBV) and two conditions: Oral Lichen Planus (OLP), an immune system disease, and Oral Lichenoid Contact Lesions (OLCL), an allergic reaction to dental materials.
  • A total of 60 participants, including 20 with OLCL, 23 with OLP, and 20 healthy controls, underwent biopsies, saliva, and blood tests to detect the presence of EBV DNA using Real-time PCR.
  • Results revealed that EBV DNA was somewhat present in both OLP and OLCL patients, with no significant difference noted compared to the control group, suggesting more research is needed to clarify EBV's role in these conditions
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  • The testes and epididymis have a network of tubules responsible for sperm generation, maturation, nourishment, and transport, including the efferent ductules connecting the rete testis to the epididymis.
  • There is a debate over whether the efferent ductules belong to the testicles or the epididymis, but clinical evidence supports their classification with the epididymis.
  • Correctly identifying components of the epididymis is crucial for assessing testicular cancers, as infiltration by tumors can affect prognosis.
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Pyrenoids are algal CO-fixing organelles that mediate approximately one-third of global carbon fixation and hold the potential to enhance crop growth if engineered into land plants. Most pyrenoids are traversed by membranes that are thought to supply them with concentrated CO. Despite the critical nature of these membranes for pyrenoid function, they are poorly understood, with few protein components known in any species.

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Approximately one-third of global CO assimilation is performed by the pyrenoid, a liquid-like organelle found in most algae and some plants. Specialized pyrenoid-traversing membranes are hypothesized to drive CO assimilation in the pyrenoid by delivering concentrated CO, but how these membranes are made to traverse the pyrenoid matrix remains unknown. Here we show that proteins SAGA1 and MITH1 cause membranes to traverse the pyrenoid matrix in the model alga Chlamydomonas reinhardtii.

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Aim was to evaluate the influence of different quantum iterative reconstruction (QIR) levels on the image quality of femoral photon-counting CT angiographies (PCD-CTA).Ultra-high resolution PCD-CTA were obtained from both extremities of five extracorporeally-perfused cadavers using constant tube voltage and maximum radiation dose (71.2 ± 11.

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  • * The study analyzed 150 patients who underwent laparoscopic appendectomy to compare the effectiveness and safety of three stump closure methods: endoloop, Hem-o-lok clips, and endostaplers.
  • * Results showed that 96% of patients experienced no major complications, while the remaining 4% had issues, indicating that all three closure methods can be effective, though more research is needed on the best approach.
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Background: Acute appendicitis is one of the most common surgical emergencies. With antibiotic-first treatment strategies gaining importance, the risk of an appendiceal tumor as an incidental finding or as the cause of appendicitis presents an obstacle to a conservative approach. Neuroendocrine tumors, the most frequent type of appendiceal tumors, are difficult to diagnose preopera-tively due to their small size.

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The Carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1, also CD66a), a transmembrane glycoprotein of the immunoglobulin superfamily, is a pivotal mediator of various physiological and pathological processes, including oncologic disorders. However, its precise role in tumorigenicity is contradictory discussed by several clinical studies. This review aims to elucidate the clinical significance of CEACAM1 in different cancer entities focusing on tumour formation, progression and metastasis as well as on CEACAM1-mediated treatment resistance.

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Transitional care is essential to maintain the continuity of care in younger patients with rheumatic diseases. In this study, we aimed to assess the transition readiness of rheumatology patients who had already transferred from pediatric to adult care using a questionnaire. We included young adult rheumatology patients who had already transferred to adult rheumatology care.

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Chronic inflammation with progressive age, called inflammaging, contributes to the pathogenesis of cardiovascular diseases. Previously, we have shown increased vascular expression of the Carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) in aged mice and humans, presumably via mutual upregulation with the pro-inflammatory cytokine TNF-α. CEACAM1 is critical for aging-associated vascular alterations like endothelial dysfunction, fibrosis, oxidative stress, and sustained inflammation and can be regarded as a main contributor to vascular inflammaging.

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Background: Acute appendicitis is a common cause of acute abdominal pain necessitating surgical intervention. While the traditional treatment has been urgent appendectomy, recent studies suggest that an antibiotics-first approach can be safe for uncomplicated cases. Classifying appendicitis into uncomplicated and complicated categories is crucial for guiding treatment decisions and predicting patient outcomes.

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  • The FGF, VEGFR-2, and CSF1R signaling pathways are crucial in the development of multiple sclerosis (MS), and inhibiting FGFR with infigratinib showed a 40% prevention of severe symptoms in a mouse model.
  • Fexagratinib, which inhibits multiple kinases, demonstrated significant reductions in inflammation and neurodegeneration, with a 66.7% to 84.6% prevention of severe episodes in mice depending on the dosage used.
  • The study suggests that using a low, well-tolerated dose of fexagratinib in humans could be effective in slowing down MS progression and enhancing remyelination.
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  • Frozen shoulder is primarily treated conservatively, with corticosteroid injections being commonly used; however, which method of injection is most effective remains debated.
  • This study compared two injection techniques—anterior extra-articular and posterior intra-articular—on 54 patients, assessing their effectiveness through various evaluation parameters over several weeks.
  • Results showed significant improvement in both groups regarding pain and shoulder function, but there were no significant differences between the two injection methods in terms of outcomes.
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Approximately one-third of global CO assimilation is performed by the pyrenoid , a liquid-like organelle found in most algae and some plants . Specialized membranes are hypothesized to drive CO assimilation in the pyrenoid by delivering concentrated CO , but their biogenesis and function have not been experimentally characterized. Here, we show that homologous proteins SAGA1 and MITH1 mediate the biogenesis of the pyrenoid membrane tubules in the model alga and are sufficient to reconstitute pyrenoid-traversing membranes in a heterologous system, the plant .

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Background: Many of the familial Mediterranean fever (FMF) patients present with arthritis during attacks, which may vary in its characteristics.

Aims: In this study, we aimed to describe and characterise arthritis in FMF patients.

Methods: We used our hospital's record system to retrospectively identify FMF patients with arthritis who presented to our clinic between 2005 and 2020.

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Background: Preterm newborns face many health problems due to their incomplete intrauterine development and the immaturity of their systems. One of these problems concerns nutrition. This study aimed to determine the effect of online kangaroo care (KC) training provided post-discharge on breastfeeding self-efficacy in mothers with preterm infants.

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Background And Aims: The aim of this study was to investigate the imaging performance and quality differences of PCD-CT in standard resolution mode (SR) versus ultra-high resolution mode (UHR) in the lower extremity runoff of dose-matched CTAs in a human cadaveric model.

Methods: Extracorporeal perfusion of the upper leg was established in one fresh-frozen human cadaver via inguinal and popliteal accesses using a peristaltic pump. Seven peripheral stents were deployed in the SFA.

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Blood vessels in tumors are often dysfunctional. This impairs the delivery of therapeutic agents to and distribution among the cancer cells. Subsequently, treatment efficacy is reduced, and dose escalation can increase adverse effects on non-malignant tissues.

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