PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection

Permanent URI for this collectionhttps://hdl.handle.net/20.500.14365/2

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Citation - WoS: 2
Citation - Scopus: 1
Adjuvant Effects of Chemotherapeutics and Metformin on Mfe-319 Endometrial Carcinoma Cell Line
(Editura Acad Romane, 2020) Aydemir, Isil; Uluer, Elgin Turkoz; Korkmaz, Oya; Tuglu, Mehmet Ibrahim; Inan, Sevinc
We aimed to investigate the cytotoxicity of Metformin, Cisplatin, and Paclitaxel on MFE-319 endometrial carcinoma cell line using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and immunocytochemistry assays. Half maximal inhibitory concentration (IC50) doses of three drugs alone and in the dual combinations were applied to the cells. Immunocytochemical method was performed for the cell survival and for phosphatidylinositol 3-kinase (PI3K), phosphorylated extracellular regulated kinases (pErk)-1/2, Akt-1, phosphorylated Akt (pAkt)-1/2/3 cell growth markers and angiogenic vascular endothelial growth factor (VEGF). Immunoreactivities were evaluated using H-score and analyzed using the one-way analysis of variance (ANOVA) test for statistics. It was found that these drugs caused a decrease in the immunoreactivities of these markers. Particularly, dual combination of Paclitaxel and Cisplatin decreased the immunoreactivities of PI3K, pErk-1/2, Akt-1, and pAkt-1/2/3. Cisplatin and Paclitaxel were more effective than Metformin; on the other hand, Metformin has been shown to enhance the efficacy of these two drugs. In vitro or in vivo further studies are needed to investigate the efficacy of these three drugs via PI3K/Akt signal pathway.
Citation - WoS: 2
Citation - Scopus: 2
Analysis of Nucleotide Changes in Rt-Pcr Primer/Probe Binding Regions in Sars-Cov Isolates Reported From Turkey
(Ankara Microbiology Soc, 2021) Demir, Ayse Banu; Bulgurcu, Alihan; Appak, Ozgur; Sayiner, Ayca Arzu
The SARS-CoV-2 virus, which caused the COVID-19 epidemic, caused more than 55 million cases and nearly 1.5 million deaths worldwide. For the microbiological diagnosis of the disease, the most valid method is detecting the presence of the viral genome by real-time reverse transcription polymerase chain reaction (rRT-PCR). However, due to the nature of the RNA viruses, frequent mutations may affect the sensitivity of the analyses made on the genetic material of the virus, such as PCR. In this study, we aimed to investigate the mutations in the primer-probe binding regions of the rRT-PCR panels used in COVID-19 diagnosis. SARS-CoV-2 whole genome sequence data (n= 194) isolated from COVID-19 cases in Turkey and uploaded on GISAID database from the centers in Istanbul (n= 78), Ankara (n= 58), Kars (n= 47), Bursa (n= 2), Adiyaman (n= 2), Erciyes (n= 1) and Kocaeli (n= 1) between March 17-September 14, 2020 were analyzed. In order to determine the nucleotide changes, SARS-CoV-2 sequences from Turkey were compared to the reference genome sequence (NC_045512.1) present in GenBank website. The constructed data set was aligned using the MAFFT program and was checked manually if the sequences were in the same frame by using the AliView program. Primer-probe binding sites of the thirteen SARS-CoV-2 rRT-PCR panels from seven different institutes (US CDC, China CDC, Charite CDC, Pasteur, HKU, Thailand, NIID) that are being used in COVID-19 diagnosis were evaluated in terms of nucleotide changes within the corresponding regions compared to the reference genome. Sequence diversities in the viral genomes were determined via positional nucleotide numerical calculator and entropy calculator modules and nucleotide and entropy changes in primer-probe binding regions for each rRT-PCR panel were examined. Among thirteen different primer-probe panels, nucleotide changes in the target regions of the seven primer-probe panels were determined. When viral sequences with nucleotide changes in the primer-probe binding regions were examined, the most common changes were observed in the China CDC N-forward primer and US CDC N3-forward primer binding regions. It is important that the kits to be used as diagnostic tests are designed specific to the regions with less nucleotide changes. Nucleotide changes may not be critical for DNA amplification for most PCR panels, but should be carefully monitored as they may affect the sensitivity of the assay. If the risk of alteration of the designed region is high, the primer - probe binding sites should be checked frequently and updated when necessary.
Citation - WoS: 15
Citation - Scopus: 15
Assessment of Mtor Pathway Molecules During Implantation in Rats
(Taylor & Francis Ltd, 2017) Ekizceli, G.; İnan, Sevinç; Oktem, G.; Onur, E.; Ozbilgin, K.
Mammalian target of rapamycin (mTOR) is a member of the PI3K/Akt/mTOR signaling pathway that participates in cell growth, proliferation, protein synthesis, transcription, angiogenesis, apoptosis and autophagy. We investigated the role of mTOR and other signaling molecules in the rat uterus during implantation. Female pregnant rats were divided into three groups: embryonic days (ED) 4.5, 5.5 and 6.5 according to vaginal smears. Immunohistochemical staining of mTORC1, mTORC2, IGF1, PI3K, pAkt1/2/3, ERK1 and pERK1/2 was performed on formalin fixed, paraffin embedded uterine tissue samples. pAkt1/2/3 and ERK1 also were analyzed using western blotting. We found that PI3K/Akt/mTOR and ERK/pERK were increased during the implantation period. Different amounts of mTORC1, mTORC2, IGF1, PI3K, pAKT1/2/3, ERK1 and pERK1/2 were expressed in luminal epithelium, decidual cells, embryoblast and trophoblast cells during implantation. We suggest that mTOR and associated signaling molecules may participate in implantation.
The Association of Polypoid Growth Pattern With Lymph Node Involvement in Endometrioid Type Endometrial Adenocarcinoma
(Wolters Kluwer Medknow Publications, 2023) Bezircioğlu, İncim; Yetimalar, M.H.; Kılıç, D.; Yiğit, S.
Background: Tumor size is an independent predictor of lymph node metastasis and survival in the endometrioid type endometrial adenocarcinoma (EC). However, some of the ECs tend to grow towards the cavity in the polypoid pattern, which can reach very large sizes. In this study, we aimed to analyze the association of growing in the polypoid pattern of the tumor with the proportion of lymph node metastasis and extrauterine tumor spread. Methods: Four hundred seven patients were analyzed retrospectively. The effect of tumor size, tumor growing pattern, myometrial invasion, grade, and lymphovascular space invasion on the lymph node metastasis and extrauterine tumor spread were investigated. Statistical analysis consisted of unpaired t-tests for parametric data and Mann Whitney-U test for non-parametric data, whereas the Chi-square test for categorical variables. Logistic Regression, Cox Regression and multivariate analysis were used to estimate the risk predictors. Results: No association was found between the growing in polypoid pattern and lymph node metastasis (P > 0.05). In the analysis of endometrioid type EC patients who had myometrial invasion less than ½ as a subgroup, no association was found between the growing pattern and lymph node metastasis and extrauterine disease. Tumor size was found to be a statistically significant predictor of lymph node metastasis and extrauterine disease (P < 0.05). Conclusions: Lymphovascular space invasion, grade, and myometrial invasion are associated with a higher proportion of lymph node metastasis. The polypoid growth pattern of the tumor does not correlate with any histopathological parameters. © 2023 Copyright:
Citation - WoS: 6
Citation - Scopus: 2
Association of Ratios of Monocyte/High-density Lipoprotein Cholesterol and Neutrophil/High-Density Lipoprotein Cholesterol With Atherosclerotic Plaque Type on Coronary Computed Tomography
(Clinics Cardive Publ Pty Ltd, 2024) Okan, T.; Topaloglu, C.
Objectives: The monocyte/high-density lipoprotein cholesterol (HDL-C) ratio (MHR) and neutrophil/HDL-C ratio (NHR) are markers for inflammation and dyslipidaemia, which are important factors in atherosclerosis. Studies have linked MHR and NHR to the prediction, severity and prognosis of coronary artery disease. However, no study has explored their connection to plaque stability, specifically its calcific or soft/mixed content. Methods: Monocyte, neutrophil and HDL-C levels were examined in 99 patients who had coronary computed tomographic angiography (CTA) between January and August 2023. They were divided into three groups: a group of 42 healthy individuals (group 0) with no coronary artery plaque and an Agatson score of 0, an unstable plaque group (group 1) with 31 patients displaying mixed and/or soft plaque on CTA, and a stable plaque group (group 2) with 26 patients showing only calcific plaque. Results: White blood cell (WBC), monocyte and neutrophil counts were significantly higher in group 1 patients compared to group 0 patients (group 0: WBC = 6.31 ± 0.97 × 103 cells/ µl, monocytes = 0.40 ± 0.09 × 103 cells/µl, neutrophils = 3.32 ± 0.81 × 103 cells/µl; and group 1: WBC = 7.61 ± 1.95 × 103 cells/µl, monocytes = 0.50 ± 0.11 × 103 cells/µl, neutrophils = 4.19 ± 1.36 103 cells/µl; p < 0.05). MHR and NHR were significantly higher in group 1 patients compared to group 0 patients (group 0: MHR = 0.0079 ± 0.0029, NHR = 0.063 ± 0.023 and group 1: MHR = 0.0102 ± 0.003, NHR = 0.085 ± 0.036, p < 0.05). Conclusion: The significant differences in MHR and NHR between the three groups were due to the differences between groups 0 and 1. MHR and NHR were significantly higher in group 1 patients, although there was no statistically significant difference between groups 1 and 2. Copyright © 2024 Clinics Cardive Publishing. All Rights Reserved.
Autophagy-Related Genes Affect the Survival of Multiple Myeloma Patients Depending on Chromosomal Abnormality
(Walter De Gruyter Gmbh, 2022) Ayna Duran, Gizem; Benderli Cihan, Yasemin
Background: Targeting autophagy at gene level may be promising in multiple myeloma (MM) treatment depending on chromosomal abnormality (ABN) status.Objectives: We aimed to investigate the role of ABN on survival of MM patients and to identify prognosis related autophagy-related genes (ARGs) for patients with or without ABN.Methods: Gene intensity values of 222 ARG for 548 MM patients were obtained from the Affymetrix Human Genome U133 Plus 2.0 Array (GPL570) platform containing 54,675 probes (GSE24080). A dataset containing data from 1576 MM patients with 1q21 amplification (GSE4204, GSE4452, GSE4581, and GSE2658) was used for validation. Survival analysis of the patients was analyzed using univariate and multivariate Cox regression method with the help of R3.53 programming language and Kaplan-Meier graphics were created. The Gene Ontology enRIchmentanaLysis and visuaLizAtion (GOrilla) tool was used to define the related biological processes and pathways.Results: The overall survival (OS) and event-free survival (EFS) in all MM patients were strongly influenced by ABN. In the group of patients with ABN, 41 ARGs were found to be important in prognosis, whereas in the group of patients without ABN, 13 ARGs were found to be important in prognosis. CDKN1A, FKBP1B, FOXO3, and NCKAP1 ARGs were commonly significant in both groups and found to be survival triggering.Conclusions: The classification of MM patients according to the absence or presence of ABN is important in the determination of survival status. Detection of survival related ARGs in patients with chromosomal anomalies may be a new therapeutic target in treatment.
Bioinformatics Based Drug Repurposing Approach for Breast and Gynecological Cancers: RECQL4/FAM13C Genes Address Common Hub Genes and Drugs
(Galenos Publ House, 2025) Duran, Gizem Ayna
Objective: The prevalence of breast cancer and gynaecological cancers is high, and these cancer types can occur consecutively as secondary cancers. The aim of our study is to determine the genes commonly expressed in these cancers and to identify the common hub genes and drug components. Materials and Methods: Gene intensity values of breast cancer, gynaecological cancers such as cervical, ovarian and endometrial cancers were used from the Gene Expression Omnibus database Affymetrix Human Genome U133 Plus 2.0 Array project. Using the linear modelling method included in the R LIMMA package, genes that differ between healthy individuals and cancer patients were identified. Hub genes were determined using cytoHubba in Cytoscape program. “ShinyGo 0.80” tool was used to determine the disease-specific biological KEGG pathways. Drug.MATADOR from the ShinyGo 0.80 tool was used to predict drug-target relationships. Results: The RecQ Like Helicase 4 and Family with Sequence Similarity 13 Member C genes were found to be similarly expressed in breast cancer and gynaecological cancers. Upon KEGG pathway analyses with hub genes, Drug.MATADOR analysis with hub genes related to cancer related pathways was performed. We have determined these gene/drug interactions: NBN (targeted by Hydroxyurea), EP300 (targeted by Acetylcarnitine) and MAPK14 (targeted by Salicylate and Dibutyryl cyclic AMP). Conclusion: The drugs associated with hub genes determined in our study are not routinely used in cancer treatment. Our study offers the opportunity to identify the target genes of drugs used in breast and gynaecological cancers with the drug repurposing approach.
Citation - WoS: 5
Citation - Scopus: 5
Caregiving Self-Efficacy in Family Caregivers of People With Dementia: the Role of Knowledge of Dementia and Perceived Social Support
(Routledge Journals, Taylor & Francis Ltd, 2023) Özgül, Ecem; Akyol, Merve Aliye; Soylemez, Burcu Akpinar; Küçükgüçlü, Özlem
PurposeTo examine the role of perceived social support and knowledge of dementia in family caregivers of people with dementia (PwD) regarding caregiving self-efficacy.DesignDescriptive, cross-sectional, and predictive design was used.MethodsThe study was conducted with caregivers of PwD (n:102) between March and May 2022. Data was collected using the following forms: a socio-demographic characteristics form, the revised scale for caregiving self-efficacy (RSCSE), the dementia knowledge assessment scale (DKAS) and the revised form of the multidimensional scale of perceived social support (RFMSPSS). Data was assessed through descriptive statistics and multivariate regression analysis.FindingsThe participants' RSCSE, DKAS and RFMSPSS mean scores were 1125.89 & PLUSMN; 417.18 (range:0-1800), 15.70 & PLUSMN; 6.06 (range:0-34), and 52.72 & PLUSMN; 20.07 (range:12-74), respectively. Analysis indicated that DKAS and RFMSPSS predicted positive caregiving self-efficacy scores but it was not statistically significant for DKAS (R2:0.209, F:13.077, p < 0.001). These variables accounted for 21% of total variance of caregiving self-efficacy. RFMSPSS predicted positively and statistically significantly (& beta;:0.461, p < 0.001) the total score of the self-efficacy scale.ConclusionsThe perceived social support of caregivers of PwD is an important predictor of the self-efficacy level of caregivers.Clinical EvidenceIn order to enhance improving the quality of the caregiving process, caregivers should be strengthened, and caregiving self-efficacy should be comprehensively evaluated to enable assistance to the caregiver. The social support of caregivers is an important predictor of caregiving self-efficacy. Therefore, social support should be taken into consideration when engaging in appropriate initiatives.
Citation - WoS: 1
Case Report-Right Atrial Mass: a Very Rare Presentation of Endometrial Cancer Metastasis
(Oxford Univ Press, 2023) Ertürk, Emre; Söyler, Onur; Pehlivan, Fatma Seher; Arslan, Çagatay
Background We report a case of a 47-year-old woman with right atrial metastasis of endometrioid adenocarcinoma, which is an uncommon clinical presentation for patients with endometrial cancer (EC). The principal aim of this case is to demonstrate the possibility of distant metastasis, something rarely encountered among this group of patients.Case summary Our patient, diagnosed with EC and receiving chemotherapy and radiotherapy after surgery, was found to have enhanced 18-fluorodeoxyglucose uptake inside the right atrium on the repeat positron emission tomography-computed tomography scan at the ninth month after initial diagnosis. Following trans-oesophageal echocardiography, cardiac magnetic resonance imaging showed a hyper-vascular mass with right atrial lateral wall involvement likely to be malignant in nature. A right atrial tumour was successfully removed by cardiovascular surgeons, and a pericardial patch was placed at the site of the excised atrium. The pathological examination showed EC metastasis. Following surgery, systemic treatment was planned for recurrent EC. The patient had an uneventful recovery after the surgery.Discussion Endometrial cancer is the most common gynaecologic malignancy and the fourth most common cancer in women. The lymphatic pathway is the main metastatic behaviour of EC; however, haematogenous metastases are not uncommon, especially in patients with higher stages of the disease. Our patient did not show any signs and symptoms of cardiac involvement. Nevertheless, clinicians should be alert for symptoms of cardiac involvement like new-onset murmur, embolism, or dyspnoea. Having known the behavioural pattern of the primary tumour, timely utilization of diagnostic imaging methods in accordance with clinical suspicions in patients with rapidly growing tumours can be lifesaving.
Citation - Scopus: 3
Clinical Impact of Hepatitis C Virus Genomic Variations
(Ankara Microbiology Society, 2015) Ergünay K.; Abacioglu H.
Hepatitis C virus (HCV) is a globally-dispersed agent of chronic hepatitis with a significant public health threat, affecting over 110 million individuals throughout the world. The increased risk for chronicity after exposure and the lack of a protective vaccine make HCV is a leading infectious cause of cirrhosis, liver failure requiring transplantation and hepatocellular carcinoma. The replicative process and infection dynamics in the host enable HCV to generate an array of closely-related but non-identical genetic variants known as quasispecies in the infected individuals. Pathogenesis and outcome in HCV infections are directly affected by the virus genetic heterogeneity, reflected as the emergence of quasispecies in infected individuals. The evolution of these highly-diverse viral populations in the host directly influences the disease course, via providing a pool of variants capable of resuming viral replication under extrinsic and/or intrinsic selective pressures. Viral quasispecies go through several alterations during the course of the infection, and provide a background for the selection of escape mutants from the host humoral and cell-mediated immune responses and antiviral treatment. Supported by the robust next generation sequencing techniques, recent studies have provided significant insights on the genomic diversity and progression as well as on the origin and the epidemiology of HCV. This review provides an overview of the mechanisms of HCV genetic variability, and the interactions with the host, that affects clinical disease, covering viral and host determinants of humoral and cell-mediated immune responses, alterations during the early and late stages of the infection and disease progression leading to chronicity. In addition, current findings in virus evolution and epidemiology were briefly interpreted from the inter-species and population perspectives. The impact of viral genomic heterogeneity on antiviral treatment in the era of direct-acting agents is also discussed, along with an overview of current methods employed for the characterization of viral diversity.
Clinical Management Strategies of Cardiologists in Heart Failure with Reduced Ejection Fraction in Türkiye
(Kare Publ, 2024) Türk, Uğur Önsel; Kocabaş, Umut; Özçalık, Emre; Kıvrak, Tarık; Altın, Cihan
Amaç: Kalp yetersizliği (KY) kılavuz önerilerinin klinik pratikte uygulanması zaman almaktadır ve genellikle gerçek yaşam şartlarında optimal düzeyde uygulanmamaktadır. Bu zorluğun önemli nedenlerinden biri hekim ile ilişkili faktörlerdir. Bu anket çalışmasının amacı, Türkiye’deki kardiyoloji uzmanlarının düşük ejeksiyon fraksiyonlu kalp yetersizliği (DEF-KY) tedavi tercihlerini belirlemektir. Yöntem: Anket çalışması 22 sorudan oluşmaktadır. Bu sorular, SurveyMonkey üzerinden yayınlanmış ve anket katılım linki birçok sosyal medya aracı üzerinden hekimlere ulaştırılmıştır. Bulgular: Anket çalışmasına Türkiye’de görev yapmakta olan 177 kardiyoloji uzmanı ve asistanı katıldı. Katılımcıların ortalama yaşı 39.5, %73.3’ü erkek, %38.7’si eğitim ve araştırma hastanelerinde görev yapmakta idi ve sadece %10.2’si kendisini KY uzmanı olarak tanımlamaktaydı. Katılımcıların %80.1’i, DEF-KY tanısı için sınır ejeksiyon fraksiyonu değerini %40 olarak kabul ettiklerini belirttiler. Hekimlerin %52.6’sı anjiyotensin reseptör-neprilisin inhibitörü (ARNi) tedavisini ‘‘en etkili KY tedavisi’’ olarak kabul ettiklerini belirtmelerine karşın, %62.7’si ilacın geri ödeme kısıtlılıkları ve fiyatı nedeniyle, DEF-KY tedavisine ARNi yerine anjiyotensin dönüştürücü enzim inhibitörü (ADEi) ile başlamak zorunda kaldıklarını belirttiler. Katılımcıların %52.3’ü tedaviye farklı bir KY ilaç sınıfını eklemenin, halihazırda kullanılan ilaçların dozunu arttırmaktan daha önemli olduğunu belirttiler. Hekimlerin %69.5’i yeni tanı KY hastalarında, hastane yatışı sırasında dört KY ilaç sınıfını aynı anda başlamanın mümkün olduğunu belirttiler. Buna karşın günlük pratiklerinde, sırasıyla ADEi/ARNI, beta–bloker, mineralokortikoid reseptör antagonisti ve sodyum-glukoz ko-transporter 2 inhibitörlerini başladıkları sıralı yaklaşımı daha çok tercih ettiklerini belirttiler. Sonuç: Bu anket çalışması, kılavuz önerileri ile gerçek yaşam uygulamaları arasında önemli farklılıklar olduğunu ortaya koymaktadır. Kılavuz önerilerinin, klinik pratikte uygulanabilmesi için sağlık sağlayıcıların gerekli önlemleri almalarına ve düzenlemeleri yapmalarına ihtiyaç vardır.
Citation - WoS: 3
Citation - Scopus: 3
A Combination of Heart Rate-Corrected Qt Interval and Grace Risk Score Better Predict Early Mortality in Patients With Non-St Segment Elevation Acute Coronary Syndrome
(Aves, 2022) Inci, Saadet Demirtas; Tekindal, Mustafa Agah; Altinsoy, Meltem; Ozbeyaz, Nail Burak; Sunman, Hamza; Tas, Alperen; Yilmaz, Sabiye
Objective: This study aimed to evaluate whether the addition of heart rate-corrected QT interval prolongation to the Global Registry of Acute Coronary Events risk score improves the predictive value for early mortality in patients with non-ST segment elevation acute coronary syndrome. Methods: We retrospectively screened our database for consecutive non-ST-segment elevation acute coronary syndrome patients between January 2017 and July 2019. The demographic and clinical parameters were acquired via chart review. All electrocardiograms were reviewed by 2 physicians. QT interval was measured using the tangent method. Early mortality was defined as all-cause death observed during the hospital stay or within 30 days after discharge. Results: The final study population consisted of 283 patients, there were 17 early deaths. Ten of 59 patients with prolonged corrected QT intervals died (16.9%, P < .001). Both the Global Registry of Acute Coronary Events risk score (odds ratio: 1.032; 95% CI: 1.012-1.053; P = .002) and corrected QT interval (odds ratio: 1.026; 95% CI: 1.007-1.045; P = 0.007) independently predicted early mortality. The area under value was 0.769 (95% CI: 0.674-0.863, P < .001) for the corrected QT interval and 0.780 (95% CI:0.681-0.878; P < .001) for the Global Registry of Acute Coronary Events risk score alone. However, when the corrected QT interval and the Global Registry of Acute Coronary Events risk score were combined, it was found to be 0.808 (95% CI: 0.713-0.904, P < .001). Conclusion: This study is the first to report that prolonged corrected QT and the Global Registry of Acute Coronary Events risk score independently predict early mortality and a combination of these 2 factors may improve the predictive value for early mortality in patients with ST-segment elevation acute coronary syndrome.
Citation - WoS: 3
Citation - Scopus: 3
Comparison of Single- and Double-Plate Fixation Techniques in the Treatment of Nonunions of the Humeral Shaft
(Atha Comunicacao & Editora, 2022) Akdemir, Mehmet; Biçen, Ahmet Çağdaş; Ozkan, Mustafa
Introduction: Humerus shaft fractures may be treated conservatively or surgically. In 2.5% to 13% of cases, nonunion is observed, and it leads to severe pain and morbidity. Plate osteosynthesis has become popular in the treatment of nonunion of the humeral shaft. In this study, we compared the clinical outcomes of patients with humerus shaft nonunion whom we treated with single- or double-plate fixation. Materials and Methods: Fifty-three patients diagnosed with aseptic humeral shaft nonunion and treated with plate fixation were included in the study. Patients were evaluated according to the number of plates (single vs. double plates). The two groups were subjected to statistical evaluation according to their clinical and radiographical results. Results: The average age of the patients was 53 years (range: 1-86); 28 (52.8%) were female and 25 (47.2%) were male. The union rate was 90.32% for single plate and 90.91% for double plate fixation. There was no statistically significant difference between single and double plates in the clinical and radiographical results (union time, union rate, Q-DASH score) (p > 0.05). There was a significant correlation between age and union times / Q-DASH scores according to the Spearman correlation test (p < 0.05). Transient radial nerve neuropraxia developed in 2 patients and 1 patient suffered from an infection that was treated with debridement and antibiotic therapy. Conclusion: In our study, similar good results were obtained with single and double plates. In treatment of humeral shaft nonunions, a second plate is not needed if enough stability is provided with single plate fixation.
Citation - WoS: 3
Citation - Scopus: 2
A Comparison of the Molecular Distribution of Proangiogenic Factors in Endometrium of Missed Abortions and of Voluntary First Trimester Termination Cases
(7847050 Canada Inc, 2015) Ozcakir, T.; Turan, M. A.; Simsek, F.; Atay, C.; Vatansevers, S.; Ozbilgin, K.
Objective: The authors aimed to evaluate the angiogenic changes that occur in the cases with missed abortions compared with the voluntary termination of pregnancy as control group, with this controlled clinical study. Materials and Methods: The study included fifteen healthy volunteer women with unwanted pregnancy less than 10th gestational week in an academic research environment. The patients were 19 women between 6th and 11th gestational weeks diagnosed with missed abortion as the patient group. Immunohistochemistry was utilized to examine temporal and spatial expression of vascular endothelial growth factor (VEGF) and their two receptors: VEGF-Rl (Flt-1) and VEGF-R2 (Flk-1/KDR), and Trombospondin-1, eNOS, iNOS, and HIF-1 alpha in the both deciduas and placenta of the both groups. Results: This study discovered the significant difference (p < 0.005) between the groups of controlled and missed abortion in the decidual and placental cell components, and has put forward that thrombospondin and iNOS have an impact on abortion through antiangiogenic effect in cases of missed abortions. Conclusions: The potential role of molecules affecting angiogenesis in the etiology of missed abortion has been evaluated and the authors aimed for this to be a guide for studies on further treatments and on the prevention of the development of missed abortions.
Citation - WoS: 2
Citation - Scopus: 2
Continuous and Intermittent Parathyroid Hormone Administration Promotes Osteogenic Differentiation and Activity of Programmable Cells of Monocytic Origin
(Taylor & Francis Ltd, 2022) Kir, M. C.; Onal, M. O.; Uluer, E. T.; Ulman, C.; İnan, Sevinç
Bone healing deficiencies are challenging for orthopedic practice. The use of stem cells with scaffolds to treat bone tissue losses currently is popular for promoting regeneration of tissue. Programmable cells of monocytic origin (PCMO) may differentiate into three germ layers and may be a promising alternative treatment due to their stem cell-like properties. Parathyroid hormone (PTH) participates in bone metabolism. Intermittent administration of PTH promotes osteogenic activity of mesenchymal stem cdells (MSC). We investigated the osteogenic effects of continuous and intermittent administration of PTH on PCMO. Mononuclear cells were harvested from the peripheral blood of healthy donors. Isolated cells were cultured for six days in a de-differentiation medium. Indirect immunocytochemistry using anti-CD14, anti-CD45 and anti-CD90 primary antibodies, as well as electron microscopy were used to detect PCMO. PCMO then were cultured in an osteogenic differentiation medium supplemented with continuous or intermittent 50 ng/ml PTH. The PTH-free control group (CG), intermittent PTH treated group (IPG) and continuous PTH treated group (CPG) were cultured and assessed for their differentiation into osteogenic lineage cells by indirect immunocytochemistry using anti-collagen I, anti-osteonectin and anti-osteocalcin primary antibodies. Osteoblast-like cells obtained by continuous or intermittent PTH administration exhibited increased levels of collagen I, osteonectin and osteocalcin immunoreactivity. We found that continuous and intermittent PTH administration to PCMO enhanced their differentiation to osteogenic lineage cells and increased osteoblastic activity.
Coping Self-Efficacy Scale Evaluation of the Turkish Validity and Reliability of the Scale
(Wolters Kluwer Medknow Publications, 2025) Gokdemir, Ozden; Come, Ogulcan; Akin, Cetin; Tunay, Merthan
Background:The purpose of the study is to evaluate the validity and reliability of the Coping Self-Efficacy Scale (CSES) for family physicians.Method:The study is a correlational cross-sectional type of methodological study conducted with 255 family physicians. In the research, data were collected using descriptive data record form and the CSES. The collected data were analyzed using the following statistical methods: "Explanatory Factor Analysis (EFA)," "Confirmatory Factor Analysis (CFA)," "Cronbach's Alpha."Results:This study involved family physicians (mean age: 38.5 +/- 10.1, 59.2% women), with 72.2% married and 59.6% having children. Work settings varied, with 39.2% in family health centers, 38.0% in university hospitals, and 16.5% in state hospitals. Exploratory and confirmatory factor analyses were conducted on the CSES, revealing a three-factor model with strong validity (Kaiser-Meyer-Olkin (KMO) =0.956). The model exhibited good fit indices (chi(2) =61.432, df = 132, P = 1.000; root mean square error of approximation (RMSEA) =0.000; goodness of fit (GFI) =0.998; comparative fit index (CFI) =1.00; incremental fit index (IFI) =1.003; relative fit index (RFI) =0.997; normed fit index (NFI) =0.997). Reliability was high (Cronbach's alpha =0.978), indicating robust internal consistency across factors. This instrument appears reliable and valid for assessing family physicians' self-efficacy.Conclusions:Findings affirm the reliability and validity of the CSES instrument in assessing self-efficacy among family physicians, providing a valuable tool for understanding and enhancing their professional capabilities in diverse healthcare settings.
Coronary Artery Bypass Grafting in a Patient With Situs Inversus Totalis
(Clinics Cardive Publ Pty Ltd, 2023) Okan, Taha; Topaloğlu, Caner; Küçükk, Orhan; Bayraktaroğlu, Selen; Ceylan, Naim
Situs inversus totalis (SIT) describes a complete mirror image of the visceral organs in the thoracic and abdominal cavities. Dextrocardia, in combination with SIT, is a rare congenital anomaly with a frequency of 1:10 000, and coronary heart disease may occur with a similar frequency and manifestation as in the general population. Coronary computed tomogra-phy (CT) angiography is useful for accurately assessing the coronary artery origin and position for preprocedural plan-ning of difficult coronary artery catheterisation in SIT. In this case, invasive coronary angiography (ICA) was performed from the same angle but on the opposite side compared to standard angiography. With the use of volume-rendered three-dimensional and curved reformatted images recon-structed from coronary CT angiography, the advancement of guidewires and catheters during ICA as well as the planning of surgical procedures can be performed more safely.
Citation - WoS: 7
Citation - Scopus: 8
Could the Inflammatory Prognostic Index Predict the Efficacy of Regorafenib in Patients With Metastatic Colorectal Cancer?
(Springer, 2022) Erdogan, Atike Pinar; Ekinci, Ferhat; Karabas, Aykut; Balcik, Onur Yazdan; Barutca, Sabri; Dirican, Ahmet
Purpose To investigate the clinical importance of the inflammatory prognostic index (IPI) in patients with metastatic colorectal cancer treated with regorafenib. Methods A retrospective analysis of 65 metastatic CRC patients treated with regorafenib between 2015 and 2020 was performed. The association between NLR, PNLR, IPI, and overall survival (OS) and progression-free survival (PFS) was evaluated. Results According to the cut-off points, patients were divided into two groups. The patients in the high IPI group showed poorer OS compared to patients in the low IPI groups. The PFS was better in patients with low neutrophil-lymphocyte ratio (NLR) and platelet-neutrophil to lymphocyte ratio (PNLR), and the OS was better in patients with low IPI. Conclusion Among the immune inflammation scores analyzed in mCRC patients receiving regorafenib, NLR and PNLR were the best predictor of recurrence, whereas IPI was the best predictor of long-term survival. After being confirmed by better designed controlled trials, IPI can be used to identify the group of patients who will benefit more from regorafenib treatment.
Covid-19 Outbreak May Increase Mortality Rates in Genitourinary Cancers Comment
(Wolters Kluwer Medknow Publications, 2022) Ozturk, Hakan; Gumus, Can
[Abstract Not Available]
Covid-19 With Woman Academicians' Perspective in Türkiye: Hopelessness and Well-Being
(Routledge Journals, Taylor & Francis Ltd, 2025) Kiratli, Didem; Ugurlu, Meltem; Yavan, Tülay; Sahin, Eda
This study aimed to determine the hopelessness and well-being levels of woman academics during the COVID-19 pandemic. This cross-sectional and analytical study was conducted online between February and May 2022 at the end of the fourth wave of the COVID-19 pandemic. The study was conducted with 341 woman academics from state and foundation universities in T & uuml;rkiye. The mean score from the Beck Hopelessness Scale was 6.02 +/- 4.84, and the mean score from the Flourishing Scale (FS) was 43.50 +/- 7.24. There was a significant negative correlation between flourishing scores and low, mild, moderate, and high hopelessness scores (p = .038, p < .001, p = .001, p = .034, respectively); as participants' level of hopelessness increases, their FS scores decrease significantly (r: -.689, p < .001). Revealing the effects of changes in the routine and academic activities of woman academics on hopelessness and well-being during the COVID-19 pandemic process has the potential to reduce possible risks that may develop in pandemics, and contribute to reducing the hopelessness levels and increasing well-being of woman academics.

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