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Öğe Assessment of ADMA, IMA, and Vitamin A and E Levels in Patients with Acne Vulgaris(Wiley, 2020) Tuncez Akyurek, Fatma; Saylam Kurtipek, Gulcan; Kurku, Huseyin; Akyurek, Fikret; Unlu, Ali; Abusoglu, Sedat; Ataseven, ArzuBackground Acne vulgaris is a common skin disease in adolescents known to be associated with oxidative stress. However, the number of studies in which oxidative stress and antioxidants are evaluated together is limited. Aims In this study, we aimed to investigate L-arginine/nitric oxide (NO) pathway metabolites, ischemia-modified albumin (IMA), and vitamin A and E levels in patients with acne and its association with disease severity. Patients/Methods Ninety patients with acne and 30 healthy adults were included in the study. The serum levels ofL-arjinin, L-arginine metabolites, IMA, and vitamins A and E measured in the patient and control groups. Results Asymmetric dimethylarginine (ADMA), LNG-monomethyl-L-arginine (L-NMMA) and symmetric dimethylarginine (SDMA), and IMA levels were significantly higher in the patients with acne than in the control group (P < .05). The L-arginine/ADMA ratio and citrulline and vitamin A levels were significantly lower in patients with acne than those of the controls (P < .05). ADMA and IMA plasma levels were increased in parallel with the disease severity (P < .05). L-arginine/ADMA ratio, L-arginine, citrulline, and vitamin A plasma levels decreased as the disease became severe (P < .05). Although L-arginine and vitamin E levels were lower in the patient group compared to the control group, the difference was not statistically significant (P > .05). Conclusion These results suggest that IMA and L-arginine-NO pathway associated with ischemia and oxidative stress may play an important role in the pathogenesis and progression of acne vulgaris.Öğe Evaluation of Annexin-1 (ANXA-1), Annexin-2 (ANXA-2) and Bone Morphogenetic Protein-7 (BMP-7) Serum Levels in Patients Followed Up With A Diagnosis of COVID-19(Ankara Microbiology Soc, 2022) Ural, Onur; Kiratli, Hatice Esranur; Sumer, Sua; Aktug Demir, Nazlim; Yilmaz Kirik, Sema; Vatansev, Husamettin; Akyurek, FikretCoronavirus disease 2019 (COVID-19) is a global health problem caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). SARS-CoV-2 infection may present with clinical pictures ranging from asymptomatic or mild forms to respiratory failure requiring intensive care follow-up and mechanical ventilation. The course of this disease with different clinical presentations raises many immunological questions. This study aimed to evaluate the serum levels of Annexin-1 (ANXA-1), Annexin-2 (ANXA-2) and bone morphogenetic protein-7 (BMP-7) in patients diagnosed with COVID-19 and to investigate whether these markers are associated with lung involvement. The study was conducted in 173 patients who were followed and treated with the diagnosis of COVID-19 and 51 healthy control group. Patients were primarily divided into two groups based on the presence of typical lung involvement (ground glass opacities, consolidation, and both) in the thoracic computed tomography (CT) scans for COVID-19. Those who found to have involvement in thoracic CT scans were divided into three groups as mild (< 33%), moderate (34-66%), and severe (> 67%) according to the extent of their lesions. Of the 173 patients included in the study, 130 had typical thoracic CT involvement for COVID-19, while 43 did not. ANXA-1, ANXA-2 and BMP-7 values were found to be higher in the patients than the control group (p=0.001, p=0.001, p=0.001). ANXA-2 levels were higher in patients with thoracic CT involvement than those without thoracic CT involvement (p=0.023). In addition, when the patients were evaluated according to their thorax CT involvement levels, it was found that as the lung involvement levels increased, ANXA-2 increased, ANXA-1 decreased, and BMP-7 levels did not change. While the increase in ANXA-2 was statistically significant, the decrease in ANXA-1 was not found statistically significant. When the relationship between the laboratory parameters and the thorax CT involvement level was evaluated; it was found that, the lymphocyte and thrombocyte counts decreased as the thorax CT involvement increased, and lactate dehydrogenase (LDH), ferritin, procalcitonin (PCT), C-reactive protein (CRP), D-dimer and troponin levels were increased. While no significant correlation was found between ANXA-1 and BMP-7 and laboratory parameters, a positive correlation was found between ANXA-2 and leukocyte count, LDH, troponin, PCT, ferritin, D-dimer, and CRP. The data obtained in our study suggest that the ANXA-2 level at the time of admission was related with the lung involvement and the level of involvement of the disease. As a result, molecular studies are needed today to understand the pathogenesis of COVID-19 and to investigate new treatment targets. Evaluation of ANXA-2 level may be important in predicting the level of lung involvement due to COVID-19.Öğe Relationship between mean platelet volume and low-grade systemic coagulation with vitamin D deficiency in primary ovarian insufficiency(Springer Heidelberg, 2013) Kebapcilar, Ayse Gul; Kulaksizoglu, Mustafa; Ipekci, Suleyman Hilmi; Korkmaz, Huseyin; Kebapcilar, Levent; Akyurek, Fikret; Taner, Cuneyt EftalPremature menopause in young women is associated with an increased incidence of cardiovascular disease. The present study was designed to determine vitamin D (vit D) and the coagulation parameters such as activated partial thromboplastin time (APTT), PT, D-dimer, white blood cell (WBC), and mean platelet volume (MPV) levels, in primary ovarian insufficiency (POI) patients and control women with a normal menstrual cycle. A total of 43 patients with non-diabetic POI were studied in order to evaluate and compare with the control group comprising 33 women with a normal menstrual cycle. There was no significant difference between the groups for age and body mass index (BMI). D-dimer, WBC, MPV, PT, total cholesterol, and LDL cholesterol were higher in women with POI. APTT levels were also increased but missed the significance in POI group. Women with POI had significantly lower serum vit D levels compared with healthy control group. FSH level was positively correlated with D-dimer, WBC, MPV, and negatively correlated to vit D and serum D vit level was inversely correlated with MPV, APTT, D-dimer, FSH levels in individual women. The obtained results seem to indicate that POI patients had low-grade systemic coagulation and fibrinolytic activation as evidenced by elevated D-dimer, WBC, MPV, PT values potentially be used as indicators of risk factor for thrombosis and atherosclerosis in POI women. All of our patients with POI were deficient in vit D. These results also suggest that vit D deficiency plays important roles of POI women and associated with coagulation, independently from age and BMI.Öğe Risk Factors for Diabetes Mellitus in Women with Primary Ovarian Insufficiency(Humana Press Inc, 2013) Kulaksizoglu, Mustafa; Ipekci, Suleyman Hilmi; Kebapcilar, Levent; Kebapcilar, Ayse Gul; Korkmaz, Huseyin; Akyurek, Fikret; Baldane, SuleymanPrimary ovarian insufficiency (POI) is not only a gynecological problem but also has serious effects on women's health such as changes in hormone levels that can trigger fluctuations in blood sugar level and inflammation status. The present study was designed to determine vitamin D, copper, zinc, metabolic parameters [insulin, homeostasis model of assessment-insulin resistance (HOMA-IR)], inflammation parameters such as procalcitonin and high sensitivity C reactive protein (hs-CRP), and lipid profile in POI patients and control subjects with normal menstrual cycles. A total of 43 patients with nondiabetic POI were studied in order to evaluate and compare the findings with those of the control group, which comprised 33 women with normal menstrual cycles. The women with POI had higher levels of serum copper, serum insulin, glucose, LDL-cholesterol, total cholesterol, HOMA-IR, hs-CRP, and procalcitonin, whereas serum vitamin D and zinc levels were lower compared with the healthy control group. Follicle-stimulating hormone (FSH) levels were positively correlated with insulin, glucose, HOMA-IR, hs-CRP, procalcitonin, and copper and negatively correlated with vitamin D and zinc levels. In multivariate statistic analyses with body mass index and FSH as dependent variables, FSH was positively associated with copper and HOMA-IR negatively with vitamin D levels. The present study demonstrated that women with POI have traditional risk factors for diabetes mellitus, including lower levels of vitamin D, whereas higher levels of copper and HOMA-IR.
