Publications by authors named "Yılmaz Fatih"

Background: The Bethesda System for Reporting Thyroid Cytology (TBSRTC) recommended for the interpretation of needle aspiration cytology of the thyroid, is the most widely used worldwide. Studies have shown that the disagreement between observers, especially in the Bethesda III and IV diagnostic categories, is not insignificant at 10%-40%. In the TBSRTC 2023 version, some definitions were removed and simplified, and molecular pathology was proposed as a complement to cytopathology.

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  • Bladder carcinoma (BC) is common, with 20% classified as non-muscle invasive bladder cancer (NMIBC), where about 40% of patients experience recurrence despite treatment.
  • The study evaluates the prognostic implications of FOXP3, TIM-3, and tertiary lymphoid structures (TLS) in NMIBC by analyzing patient samples using immunohistochemistry and survival analysis.
  • Findings indicate that higher levels of FOXP3/TLS correlate with better recurrence-free survival, suggesting that FOXP3/TLS may serve as an effective prognostic marker, especially for patients undergoing BCG treatment.
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Objective: This study aims to reveal the importance of tertiary lymphoid structures (TLS) in transurethral resection of bladder tumor (TURBT) materials with a practical and applicable method in which the effect of a certain threshold value on survival and treatment response can be implicated.

Methods: TURBT materials that had not previously received any treatment (chemotherapy, radiotherapy, or immunotherapy) and were diagnosed for the first time at Mardin Training and Research Hospital between 2014 and 2022 were included in the study. The maximum TLS per 4× magnification field (field diameter: 4.

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  • * Data from 43 patients showed a significantly lower PCF rate in the group that received cervical fascia flaps (4.5%) compared to those who did not (33.3%).
  • * The cervical fascia flap method proved to be effective, technically simpler, and cost-effective for reducing PCF rates in laryngectomy patients.
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Freezing of artichoke is a promising alternative to storing it in brine and canning. The perishable vegetable was vacuum infused with inulin to improve freezing tolerance. Artichokes with and without inulin were frozen by static, air blast and individual quick freezing (IQF) methods and thawed by microwave, 25 °C and 4 °C temperature levels at each month of 6-months storage.

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Background: Preoperative left ventricular (LV) ejection fraction (PreLVEF) and preoperative LV end-systolic diameter (PreESD) are known predictors for postoperative LV dysfunction after mitral valve repair (MVR). Fragmented QRS (fQRS) evaluated in 12-derivation electrocardiography has widely been accepted as a sign of myocardial fibrosis. In the present study, we aimed to evaluate the relationship between fQRS in preoperative 12‑lead electrocardiography (ECG) and postoperative LV dysfunction that develop after MVR in patients with severe primary mitral regurgitation (MR) due to mitral valve prolapse (MVP).

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The honeybee ectoparasite Varroa destructor is a major threat to apiculture when evaluating bee diseases and pests. While attempting to control this mite, beekeepers often depend on a small selection of authorized synthetic acaricides, such as flumethrin, which is widely used in Türkiye and globally. However, resistance to flumethrin develops due to incorrect and excessive use.

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Background: Nutcracker syndrome is a rare condition that occurs as a result of the entrapment of the left renal vein (LRV) between the aorta and the superior mesenteric artery. It is typically associated with symptoms such as left flank pain, hematuria, proteinuria, and pelvic congestion. The current treatment approach may be conservative in the presence of tolerable symptoms, and surgical or hybrid and stenting procedures in the order of priority in the presence of intolerable symptoms.

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Background: In patients with symptomatic mitral PVL, successful transcatheter reduction of the PVL to less than mild is associated with significant improvement in short- and midterm survival.

Objectives: In this study, we present our single-centre, same operators' experience on percutaneous paravalvular leak closure with techniques and outcomes.

Methods: In this retrospective observational designed study, we retrieved hospital records of patients with a surgical history of mechanical or biological prosthetic valve replacement and who subsequently underwent transcatheter mitral paravalvular leak closure (TMPLC).

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Purpose: Bumblebees are an important group of insects in the pollination of various vegetables, fruits, oilseeds, legumes, and the fodder crops. Compared to honeybees, they have a wider choice of hosts and a longer flight period. These bees are used especially for the pollination of plants in greenhouses and are commercially produced for this purpose.

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Structural modification of protein prior to food application is an emergent approach to improve functionalization. The effectiveness of high-power ultrasound at varying amplitudes (0-100%) on the properties of pea protein powder was investigated in this study. The resulting modification was also tested with model gluten-free bread formulation and by screening the emulsion properties within vegetable oil.

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The present study evaluated the effect of ultrasonication prior to microwave heating applied at 60 °C, 70 °C, and 80 °C on the quality characteristics of verjuice. The sole microwave heating and conventional heating were also performed at the same temperature levels, and effectiveness of three different treatments were evaluated. The required treatment times were decided based on obtaining <10% pectin methylesterase (PME) activity, and ultrasound pretreatment provided the least heating durations.

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Purpose: For assessing the severity of tricuspid regurgitation (TR), there is no gold standard. We developed a parameter, the right ventricular systolic force ratio-RIVIERA, using the continious wave Doppler analysis of TR and pulsed-wave analysis of the right ventricle outflow tract. We hypothesized that the RIVIERA would facilitate the ability to identify severe TR in clinical settings.

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Granulocytic sarcoma (GS) is a malignancy of the bone marrow precursor cells, often associated with acute or chronic myeloid leukemia, forming isolated masses with extramedullary spread. It rarely shows laryngeal involvement. In this case report, a case of GS accompanying acute myeloid leukemia involving larynx with mass of neck and mediastinum as two separate masses was presented.

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This study was designed to compare the effects of natural nitrite sources from the arugula leaves (arugula extract and pre-converted arugula extract) and the use of barberry extract (BE) in heat-treated fermented sausage formulations. Eight different sausages were manufactured as follows: pre-converted arugula extract (PA), arugula extract (A), pre-converted arugula extract + BE (PAB), arugula extract + BE (AB), nitrite +BE (POB), no nitrite+ BE (NEB), also positive and negative control groups were prepared with (POC) or without nitrite (NEC). The addition of arugula and barberry extracts reduced the residual nitrite content, in fact PAB had the lowest value with a reduction ratio of 47%.

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Cereal-based foods have been essential elements in nutrition throughout history. Recently, there has been an increasing interest in the application of innovative strategies to improve technological and nutritional properties of dough-based cereal products. Literature studies indicate that the integration of vacuum technology into baking and noodle industry can significantly enhance the quality and feasibility of final products.

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  • Amyloidosis is a group of diseases caused by misfolded proteins that build up in tissues, while gout is an inflammatory arthritis caused by uric acid crystals in joints.
  • In this case, a 28-year-old man with gout was found to have AA amyloidosis affecting his medullary sponge kidney, despite gout usually not being associated with this condition.
  • The patient's family history and genetic testing did not reveal any pathogenic changes, and a renal biopsy confirmed amyloidosis; this case adds to existing literature, making it the 17th documented instance of gout linked to AA amyloidosis.
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Introduction: Peritoneal fibrosis may progress in peritoneal dialysis (PD) patients to a fatal clinical condition called encapsulating peritoneal sclerosis (EPS). Transforming growth factor (TGF)-β plays a pivotal role in the pathogenesis of peritoneal fibrosis. We aimed to investigate the association among polymorphisms in the gene encoding TGF-β1, which were -509C/T (rs1800469), +869T/C (rs1982073), and +915G/C (rs1800471) in EPS patients.

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Objective: Discontinuation of metformin treatment is a frequently used approach in clinical practice in diabetic ST-segment elevation myocardial infarction patients using metformin in order to reduce the risk of contrast-induced acute kidney injury. There is insufficient evidence in the literature to support this approach. The aim of this study is to determine whether the risk of contrast-induced acute kidney injury is different in diabetic ST-segment elevation myocardial infarction patients using metformin compared to those not taking metformin.

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Purpose: Coronavirus disease 2019 (COVID-19) has a higher mortality in the presence of chronic kidney disease (CKD). However, there has not been much research in the literature concerning the outcomes of CKD patients in the post-COVID-19 period. We aimed to investigate the outcomes of CKD patients not receiving renal replacement therapy.

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  • Catheter ablation of frequent premature ventricular complexes (PVCs) has been shown to improve heart function, specifically left ventricular ejection fraction and diastolic function, but its effects on atrial electromechanical properties were previously unclear.
  • This study evaluated the short-term impacts of radiofrequency catheter ablation on atrial electromechanical delay (EMD) in patients with outflow tract PVCs.
  • Results indicated significant improvements in atrial EMD regardless of whether patients had normal or low ejection fractions, suggesting that the procedure benefits atrial function across different heart performance levels.
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Chokeberry (aronia) fruit is a rich source of bioactive compounds with various health benefits. However, it has a limited shelf life and a firm (tight) structure that makes it difficult for moisture transfer during drying. Therefore, the aim of the study is to investigate the effects of high-power ultrasound pretreatment (550 W, 30 min) and air drying temperature (65, 70 and 75 °C) on the drying rate and bioactive compounds of chokeberry fruit.

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Objective: No study has thus far evaluated the association of controlling nutritional status (CO NUT) score and prognostic nutritional index (PNI) with prognosis in candidates listed for heart transplantation (HT). Therefore, in this study, we aimed to investigate the impact of these nutritional indices on prognosis in these candidates.

Methods: In this retrospective study, a total of 195 candidates for HT were included.

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