Publications by authors named "Celik O"

Purpose: To evaluate the effect of subconjunctival injection of dexpanthenol on corneal neovascularization and inflammation in rats with induced chemical burns.

Methods: This experimental study included 40 female albino Wistar rats. Chemical burns were induced in the right eye of all rats on the first day, and the left eye was used as a control.

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To establish a machine learning (ML) model for predicting prostate biopsy outcomes using prostate-specific antigen (PSA) values, multiparametric magnetic resonance imaging (mpMRI) findings, and hematologic parameters. The medical records of the patients who had undergone a prostate biopsy were evaluated. Laboratory findings, mpMRI findings, and prostate biopsy results were collected.

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: This study was aimed to identify the most effective machine learning (ML) algorithm for predicting preeclampsia based on sociodemographic and obstetric factors during the preconception period. : Data from pregnant women admitted to the obstetric clinic during their first trimester were analyzed, focusing on maternal age, body mass index (BMI), smoking status, history of diabetes mellitus, gestational diabetes mellitus, and mean arterial pressure. The women were grouped by whether they had a preeclampsia diagnosis and by whether they had one or two live births.

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Blastocystis is an intestinal protist commonly found in humans and many different animal species. It is probably the most common enteric parasite with an estimated one billion infections worldwide. The fecal materials for this study were collected from 100 cats and 200 dogs of different ages and sexes in shelters in Van, Turkey.

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Due to the rapidly developing technological advancements, the overuse of the Internet has led to the emergence of problematic Internet use, which has become a part of our daily lives. This study aims to investigate the relationships between problematic Internet use, Behavioral Activation System (BAS), metacognition, online dissociative experiences, and insomnia. Participants were 341 Turkish adolescents aged between 15 and 19 years (Mean = 15.

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Genes involved in lipid metabolism have been considered potential therapeutic targets in lung cancer because lipid metabolism is severely disrupted in this cancer. Monoglyceride lipase (MGLL) is a lipolytic enzyme that converts monoacylglycerides to fatty acids and glycerol. MicroRNAs (miRNA), one of the most important epigenetic regulators of gene expression, are also considered potential biomarkers in diagnosing, treating, and prognosis lung cancer.

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  • - Type 2 diabetes mellitus (DM) is linked to increased risks of sarcopenia (muscle loss) and has a complex relationship with osteoporosis (OP) in postmenopausal women, highlighting the need for further study on these connections.
  • - A study involving 444 postmenopausal women found that those with DM had higher rates of sarcopenia (23.4%) and lower rates of OP (33.5%) compared to controls, suggesting differing impacts of DM on muscle and bone health.
  • - Results indicated that longer menopause duration positively influenced OP risk, while higher age and body mass index correlated with greater sarcopenia risk; DM appeared to negatively impact OLST scores, reflecting challenges
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Objectives: To determine the effects of hyperandrogenemia and other phenotypic parameters on endometrial vitamin D receptor (VDR-X2 and VDR-X4) expression in women with polycystic ovary syndrome (PCOS) undergoing ovarian stimulation and total embryo freezing.

Methods: Forty-four PCOS patients were divided into four phenotypes according to the criteria for hyperandrogenemia (HA), ovulatory dysfunction (OD), and polycystic ovary morphology (PCOM): phenotype A (HA+OD+PCOM), phenotype B (HA+OD), phenotype C (HA+PCOM), and phenotype D (OD+PCOM). Endometrial VDR expression was determined by real-time PCR and immunohistochemistry.

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  • - Para-duodenal hernias account for 53% of internal hernias, mostly occurring on the left side, with rare symptoms in adults and a higher prevalence in males; right para-duodenal hernias are particularly uncommon and often discovered during emergency surgeries.
  • - A 71-year-old male experienced severe abdominal pain, nausea, and vomiting, leading to a CT scan that identified a right para-duodenal hernia, resulting in an emergency surgery where the hernia was confirmed.
  • - Internal hernias, while rare, lead to significant complications like bowel obstruction and ischemia; due to the patient's extensive symptoms at presentation, an exploratory laparotomy was chosen as the surgical approach, ultimately resulting in a full recovery.
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Background And Objectives: Fournier's gangrene (FG) is a polymicrobial-induced necrotizing fasciitis that affects the deep and superficial tissues of the perineal, perianal, scrotal, and genital regions. This study aimed to investigate the role of C-reactive protein (CRP)/lymphocyte and neutrophil/lymphocyte ratios, which are objective markers of inflammatory response, in predicting mortality in patients with FG.

Patients And Methods: Seventy-one patients who underwent surgery for FG between 2019 and 2023 were evaluated retrospectively.

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  • The study explored the effects of Vetiveria zizanioides oil (VET) on oxidative stress and cell death in rats that experienced seizures induced by pentylenetetrazol (PTZ).
  • Four groups of rats were observed: a control group, a PTZ only group, and two groups receiving different doses of VET alongside the PTZ treatment.
  • Findings indicated that PTZ increased seizure activity and caused oxidative stress, but treatment with VET significantly reduced these negative effects and improved the overall condition of the rats' brain tissues.
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We demonstrate a thin film lithium niobate electro-optic modulator operating at 456 nm with an RF voltage-length product of 0.38 V-cm and a bandwidth of 6.9 GHz.

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Objective: The aim of the study was to determine the expression pattern of long pentraxin 3 (PTX3) mRNA in cumulus cells (CCs) isolated from metaphase II oocytes of women with unilateral endometrioma undergoing controlled ovarian stimulation using a gonadotropin-releasing hormone antagonist (GnRHa) protocol.

Patients And Methods: A total of 60 CC samples, 30 from the affected ovary and 30 from the contralateral ovary, were collected from 12 patients with unilateral endometrioma who underwent flexible GnRHa protocol with recombinant human chorionic gonadotropin (rhCG) trigger. Thirty CC samples collected from the left ovary of 12 women with male factor infertility were used as external controls.

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Background: We explored whether the feature aggregation and refinement network (FARNet) algorithm accurately identified posteroanterior (PA) cephalometric landmarks.

Methods: We identified 47 landmarks on 1,431 PA cephalograms of which 1,177 were used for training, 117 for validation, and 137 for testing. A FARNet-based artificial intelligence (AI) algorithm automatically detected the landmarks.

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Objective: This study sought to translate the Antenatal Risk Questionnaire-Revised (ANRQ-R) into Turkish and evaluate its psychometric properties for assessing psychosocial vulnerabilities among Turkish-speaking pregnant women.

Methods: The ANRQ-R was translated into Turkish following standard linguistic adaptation procedures. Psychometric properties were then examined using a cross-sectional study design, involving 156 pregnant women recruited from antenatal clinics in Turkey.

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Objectives: Accurately identification and tooth numbering on radiographs is essential for any clinicians. The aim of the present study was to validate the hypothesis that Yolov5, a type of artificial intelligence model, can be trained to detect and number teeth in periapical radiographs.

Materials And Methods: Six thousand four hundred forty six anonymized periapical radiographs without motion-related artifacts were randomly selected from the database.

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Purpose: With significant advancements in laparoscopic procedures and tools over the last decade, the partial nephrectomy (PN) surgical approach has gradually transformed from open to laparoscopic partial nephrectomy (LPN). Although numerous studies evaluating the postoperative complications of laparoscopic partial nephrectomy can be found in the literature, a scoring system that addresses both preoperative physical condition and intraoperative risk factors has not yet been established. The Estimation of Physiological Ability and Surgical Stress (E-PASS) score is a scoring system that considers both the patient's preoperative condition and intraoperative variables to predict the risk of postoperative complications in surgically treated patients.

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To determine whether the urinary excretion of podocyte degradation products varies according to PCOS phenotype and metabolic syndrome (MetS). The concentrations of podocalyxin (PDX) and nephrin, chronic markers of podocyte damage, and neutrophil gelatinase-associated lipocalin (NGAL), a marker of acute glomerular damage, were analyzed in the morning urine samples of 50 PCOS patients and 50 healthy controls matched by age and BMI. Albuminuria was assessed by calculating the urine albumin-creatinine ratio (uACR).

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  • The study focused on the bread wheat cultivar Sagittario and its drought-tolerant mutant lines, assessing their response to drought stress induced by polyethylene glycol (PEG).
  • Drought caused a drop in chlorophyll levels and increased proline and TBARS, while improving the activity of important antioxidant enzymes like catalase and peroxidase.
  • The research identified unique proteins in the mutant lines linked to better photosynthesis and ATP synthesis, suggesting these traits contribute to their drought tolerance and may aid future plant breeding strategies.
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  • This study explores the use of automated deep learning (DL) systems to improve the segmentation of maxillary sinuses and their associated diseases in Cone-Beam Computed Tomography (CBCT) images, which can benefit surgical planning for physicians.
  • The modified YOLOv5x architecture with transfer learning was utilized to analyze a dataset of 307 anonymized CBCT images, identifying conditions such as mucous retention cysts and mucosal thickenings.
  • Results showed high accuracy in segmentation, with F1 scores indicating successful detection of both healthy and diseased maxillary sinuses using the AI model.
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  • - The study focuses on evaluating the effectiveness of trans-syndesmotic fixation in patients with SER type 4 ankle fractures after assessing syndesmosis using intraoperative tests.
  • - Results show that patients treated with trans-syndesmotic fixation had better outcomes in terms of ankle range of motion and scores on the AOFAS and OMAS compared to those who did not receive this fixation.
  • - However, the lack of fixation for the posterior malleolus significantly increases the risk of developing arthritis, highlighting the need for careful detection and treatment of syndesmotic injuries.
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Dental fillings, frequently used in dentistry to address various dental tissue issues, may pose problems when not aligned with the anatomical contours and physiology of dental and periodontal tissues. Our study aims to detect the prevalence and distribution of normal and overhanging filling restorations using a deep CNN architecture trained through supervised learning, on panoramic radiography images. A total of 10480 fillings and 2491 overhanging fillings were labeled using CranioCatch software from 2473 and 1850 images, respectively.

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  • - Blastocystis spp. is a common protozoan found in the gastrointestinal tract of humans and animals, with at least 28 genetic subtypes identified, including those in mammals and birds.
  • - This study focused on assessing the prevalence and specific subtypes of Blastocystis spp. in Anatolian buffaloes in Van province, eastern Turkey, using PCR and genetic sequencing on 120 fecal samples.
  • - Findings revealed an 11.67% prevalence of Blastocystis spp., particularly in female and young buffaloes, and identified subtypes ST10, ST14, ST25, and ST26, with ST25 and ST26 being newly reported in buffaloes.
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  • Türkiye has an increasing older population, prompting a study to determine the prevalence and characteristics of dementia, revealing varied results from previous smaller studies.
  • Researchers screened electronic health records from 2019 to 2020, identifying 247,727 dementia cases in 2019 and 233,949 cases in 2020, with a majority being women.
  • The study found that dementia prevalence in Türkiye is lower than the global average, indicating potential underreporting and a need for increased awareness and education about dementia care.
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