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Öğe Apoptosis-induced T-cell lymphopenia is related to COVID-19 severity(Wiley, 2021) Cizmecioglu, Ahmet; Cizmecioglu, Hilal Akay; Goktepe, Mevlut Hakan; Emsen, Ayca; Korkmaz, Celalettin; Tasbent, Fatma Esenkaya; Consultant, Fatma ColkesenIncreased levels of acute-phase reactants and lymphopenia are predictors of disease severity in coronavirus disease 2019 (COVID-19). This study aimed to investigate the role of apoptosis in the etiology of lymphopenia in patients with COVID-19. This multicentered, prospective, and case-control study was conducted with polymerase chain reaction (+) severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) patients, and an age-gender-matched control group. Samples were taken at the time of diagnosis and analyzed via flow cytometry within 24 h. The participants' demographic data and initial laboratory tests were also recorded. In total, 33 patients with COVID-19 (mean age = 45.4 +/- 17.2) and 25 controls (mean age = 43.4 +/- 17.4) participated in the study. All patients were identified as having mild (16), moderate (5), or severe (12) disease severity. Both early and late apoptotic cells in B and T lymphocytes were increased in all patients with COVID-19 (p < .05). Early apoptotic (EA) B and T lymphocytes were also higher in severe cases compared to mild cases (p = .026). There was no significant difference between lymphopenia and apoptosis in patients with COVID-19. However, patients with lymphopenia (n = 14) and severe COVID-19 (p = .013) had increased EA T lymphocytes. This study's results show that B and T lymphocytes' apoptosis increases in patients with COVID-19. In addition, enhanced T lymphocyte apoptosis is associated with disease severity in lymphopenic patients with COVID-19.Öğe Are dietary and serum advanced glycation end-products related to inflammation and oxidation biomarkers in breast cancer patients: a follow-up study(Springer, 2023) Alkan, Senay Burcin; Artac, Mehmet; Aksoy, Faruk; Belviranli, Mehmet Metin; Gurbilek, Mehmet; Cizmecioglu, Hilal Akay; Rakicioglu, NeslisahPurposeThis study is aimed at evaluating the relationship between dietary and serum advanced glycation end-products (AGEs) with serum inflammatory and oxidative stress biomarkers in breast cancer (BC).MethodsA sample of BC patients was followed for 12 months (March 2020-January 2022). Three-day food consumption record and serum samples were taken before surgery (T1), before chemotherapy (T2), at the 6(th) month of chemotherapy (T3), and at the 12(th) month of chemotherapy (T4). Dietary AGE intake was represented by carboxymethyl lysine (dCML). Serum levels of CML, inflammation, and oxidation biomarkers were determined with biochemical blood tests. The results were compared according to human epidermal growth factor receptor-2 (HER2) status.ResultsThirty-two women with BC and 32 age and body mass index-matched healthy women participated. No significant correlation was found between dCML and serum CML, inflammatory or oxidative stress biomarkers at T1, T2, and T4. A weak positive correlation was demonstrated between dCML and serum malondialdehyde levels (rho=0.355, p=0.046) at T3. The serum CML, inflammation, and oxidation biomarker levels of the HER2- group were significantly higher than those of the HER2+ group at T1.ConclusionThis study suggests that there is limited correlation between dCML and serum inflammation and oxidative stress biomarkers in BC patients. Inflammation and oxidative biomarker levels appear to decline with treatment although dietary and serum AGE levels show not a corresponding significant decline. The HER2- subtype appears to be associated with higher dietary and serum AGEs and higher inflammatory and oxidative stress biomarkers.Öğe Determination of hearing levels in gout patients and factors affecting hearing levels such as the dislipidemia, hemoglobin levels and hyperuricemia(W B Saunders Co-Elsevier Inc, 2020) Yucel, Abitter; Yucel, Hilal; Aydemir, Fuat; Cure, Erkan; Eryilmaz, Mehmet Akif; Cizmecioglu, Hilal Akay; Kucuk, Adem[Abstract Not Availabe]Öğe Efficacy of convalescent plasma therapy in severe COVID-19 patients(Pergamon-Elsevier Science Ltd, 2021) Cizmecioglu, Hilal Akay; Goktepe, Mevlut Hakan; Demircioglu, Sinan; Tekinalp, Atakan; Cizmecioglu, Ahmet; Tuna, Ali Kursat; Ozer, HuseyinIntroduction: The use of convalescent plasma (CP) transfusions is very valuable in the current COVID-19 outbreak, given that there are no specific preventive and therapeutic options. Materials and methods: 50 patients with severe COVID-19 disease treated with convalescent plasma transfusion were included in the study. The efficacy of CP and in which situations it was effective were investigated. Conclusion: 80 % of the patients recovered, and 20 % died in our study. The mean age of the patients who died was found to be higher than the patients who recovered. CRP, ferritin, D-dimer, neutrophil, MPV, and NLR counts were found to be higher, and lymphocyte and platelet counts were lower in the deceased group after CP. It was determined that patients who received CP within the first five days were hospitalized for a shorter period. Discussion: Administration of CP transfusion within the first five days in severe COVID-19 patients has been shown to reduce hospital stay length.Öğe The Evaluation of Dietary Antioxidant Capacity, Dietary Inflammatory Index and Serum Biomarkers in Breast Cancer: A Prospective Study(Routledge Journals, Taylor & Francis Ltd, 2023) Alkan, Senay Burcin; Artac, Mehmet; Aksoy, Faruk; Belviranli, Mehmet Metin; Gurbilek, Mehmet; Cizmecioglu, Hilal Akay; Rakicioglu, NeslisahDietary antioxidant capacity (dTAC) and dietary inflammatory index (DII) are commonly used to assess nutrition. This prospective study examined dTAC, DII, and serum biomarkers in women with breast cancer (BC). Patients were followed-up before surgery (T-1), before chemotherapy (T-2), at 6(th) (T-3) and 12(th) months of chemotherapy (T-4). Serum tumor necrosis factor alpha, interleukin 1 & beta;, interleukin 6, protein carbonyl, malondialdehyde, total antioxidant capacity (TAC), and total oxidant status levels were analyzed. Dietary antioxidant intake, dTAC, and DII were determined using a three-day dietary record. dTAC was calculated using vitamin C equivalent (VCE), oxygen radical absorption capacity (ORAC), trolox equivalent antioxidant capacity (TEAC), total radical-trapping antioxidant parameter (TRAP), and ferrous ion reducing antioxidant potential (FRAP). This study included 32 women with BC and 32 controls (CG). ORAC, TEAC, TRAP, and FRAP were significantly lower in BC than in CG. During follow-up, only ORAC increased significantly at T-2 compared to T-1. A weak positive correlation was found between dTAC (VCE) and serum TAC levels at T-2 (rho = 0.371, p = 0.036). The relationship between diet and serum biomarkers was not significant. Multicenter prospective studies on different age groups are needed to understand the association between diet and serum biomarkers levels in patients with BC.Öğe Hot Lung Sign in Pulmonary Intravascular Large B-Cell Lymphoma on 18F-FDG PET/CT(Lippincott Williams & Wilkins, 2020) Sahin, Ozlem; Kaya, Bugra; Serdengecti, Mustafa; Cizmecioglu, Hilal Akay; Sen, Ahmet ErenIntravascular large B-cell lymphoma is a rare type of non-Hodgkin lymphoma characterized by intravascular proliferation of clonal lymphocytes within the lumen of small vessels, which is often fatal. Diffuse FDG uptake in the lung without clear/evident CT findings, hot lung, is quasi-pathognomonic for lung intravascular large B-cell lymphoma. In this report, we present the case of a 43-year-old man who was diagnosed as having intravascular lymphoma thanks to this rare finding.Öğe Liver metastasis in colorectal cancer: evaluation of segmental distribution(Termedia Publishing House Ltd, 2019) Kadiyoran, Cengiz; Cizmecioglu, Hilal Akay; Cure, Erkan; Yildirim, Mehmet Aykut; Yilmaz, Pinar DiydemIntroduction: It is known that the liver is the main target for metastasis in colorectal cancer. However, we do not know enough from the literature to describe the segmental distribution of liver metastatic lesions of colorectal cancers. Aim: To investigate which liver segment is affected. Material and methods: A total of 326 patients (female/male, n = 115/221; age: 53 +/- 8/51 +/- 7 years) were included in our study, classified according to their pathological diagnosis. After liver metastases of the patients were determined, they were divided according to Couinaud classification. Results: While the total number of metastases detected in the right lobe was 691 (70.1%), the number of metastases detected in the left lobe was 294 (29.9%), and the difference was highly significant (p < 0.0001). Metastases in the right lobe anterior segment amounted to 279 (40.4%), and metastasis in right lobe posterior segment was 412 (59.6%), and the difference was significant. When the total number of metastatic lesions is evaluated by excluding segment I, the largest number of lesions were observed in segment VIII. The liver segments with the highest number of metastatic lesions were, respectively, VII, IV, VI, V, III, and II. In this case, the fewest metastatic lesions were observed in segment II. Conclusions: Liver metastases of colorectal cancer are more common in the right lobe than in the left lobe. The right lobe posterior segment (segment VI) is the main target of metastases.Öğe Spontaneous Resolution of an Orbital Mass After Delivery: A Diagnostic Challenge(Lippincott Williams & Wilkins, 2018) Dadaci, Zeynep; Kadiyoran, Cengiz; Golen, Mustafa; Cizmecioglu, Hilal AkayThe authors report a 35-year-old woman who presented 1 month after delivery with the complaint of pain behind her left eye which started during her pregnancy. The patient described increased fullness with dependent head position and pain on left gaze but she had no proptosis and her ocular examination was normal. Magnetic resonance imaging (MRI) revealed an intraconal mass with inhomogeneous contrast enhancement. As the authors did not suspect malignity and her ocular examination was normal without any signs of inflammation, the authors followed the patient closely. Repeat MRI obtained 6 months after delivery revealed complete resolution of the mass. Upon disappearance of the lesion, the authors reviewed the case thoroughly and decided that orbital venous anomaly with intralesional hemorrhage/thrombosis was the most probable diagnosis. As hemorrhage or thrombosis occurring in orbital vascular anomalies may be a diagnostic challenge because of the localized lesion and distinct borders, careful interpretation of clinical characteristics and MRI findings and close follow-up is important in interpretation of orbital mass lesions, especially in pregnant or puerperal women.
