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Öğe EFFECT OF BREAST CANCER AND BREAST CANCER TREATMENT ON THE BLOOD SERUM CONCENTRATIONS OF TRACE ELEMENTS AND SELENOPROTEINS(Polish Society Magnesium Research, 2022) Öğüt, Selim; Bahtiyar, Nurten; Mordeniz, Cengiz; Cinemre, Fatma Behice; Aydemir, Birsen; Karaçetin, Didem; Bektaş, MuhammetTrace elements (TEs) playing critical roles in chemical events that occur at the cellular level in the body are necessary for biological processes in human health. The role of TEs and selenoproteins and their relationship with breast cancer (BC) have not been studied thoroughly and therefore remain relatively unknown. Our study aimed to investigate possible changes in the serum selenoproteins (Glutathione Peroxidase 1 (GPX1), Glutathione Peroxidase 6 (GPX6), Selenoprotein F (Sel-F), Selenoprotein H (Sel-H), Selenoprotein S (Sel-S), Selenoprotein V (Sel-V), Selenoprotein M (Sel-M)), and TEs (Se, Zn, Mn, Cu, and Fe) levels, and TEs ratios (Fe/Se, Fe/Zn, Fe/Mn, Cu/Se, Cu/Zn, and Cu/Mn) in patients with BC before and after treatment (surgery, radiotherapy, and chemotherapy), and to evaluate the results in the patient groups with healthy controls. A total of 35 patients with BC and 25 healthy subjects were included in the study. Blood samples were collected from the patient group on the day prior to treatment, and on the day treatment was completed. Serum GPX1, GPX6, Sel-F, Sel-H, and Sel-S levels were decreased in both before and after treatment groups compared to the control. The treatment of BC resulted in increasing the concentration of Sel-V compared to before treatment levels. The treatment of BC resulted in lowering serum Se, Zn, and Fe concentrations compared to before treatment levels. Also, serum Se, Zn, and Fe levels were decreased in both before and after treatment groups compared to the control. The ratios of Cu/Se, Cu/Zn, and Cu/Mn were increased after treatment compared to the values before treatment. Cu/Se and Cu/Zn ratios were increased, but Fe/Mn ratios were decreased after treatment compared to healthy control. This study indicates that changes in serum levels of TEs such as Zn, Mn, Cu, and Se, as well as their ratios and selenoproteins, may be related to the treatments of BC. Further studies are required to clarify the exact specific mechanisms involved in the status of TEs and selenoproteins in therapeutic strategies of BC.Öğe Evaluation of heavy metal blood concentrations in patients with essential tremor: A preliminary study(Polish Society Magnesium Research, 2024) Korucu, Ibrahim; Gundogdu, Asli Aksoy; Bahtiyar, NurtenEssential Tremor (ET) is one the most common mobility disorders, affecting 1% of the population. Both genetic and environmental factors may trigger the pathophysiology that eventually causes ET. Pb blood levels in ET patients have been studied. However, there are no clear data in the literature evaluating the blood levels of other heavy metals (aluminum, chromium, manganese, nickel, copper, zinc, cadmium, antimony, tin) in ET patients. We aimed to investigate the relationship between heavy metal blood levels and tremor characteristics of ET patients. A total of 110 ET patients and 146 healthy controls were included. The control group was subdivided into control-1 (52 patients' household members) and control-2 (94 unrelated healthy individuals). The average age of patients was 52.10 +/- 17.00 and that of the control group was 46.00 +/- 15.85. All patients underwent a detailed neurological examination, and scores on the Basic Tremor Evaluation Scale and Fahn-Tolosa-Marin Tremor Scales were recorded for the patient group. Peripheral blood samples were collected from all participants and heavy metal levels were examined and analyzed. The Al, Cd, Cr and Sb blood levels were statistically signifi- cantly higher in ET patients than in the control group (for Al: chi 2 =8.684, p=0.013, for Cd: F=7.883, p<0.001, for Cr: chi 2 =8.175, p=0.017, for Sb: chi 2 =9.075, p=0.011). The duration of the disease was found to be positively correlated with Al blood levels (r=0.227, p=0.017). Our results revealed that ET is associated with elevated blood levels of Al, Cd, Cr and Sb. Investigating the etiological role of heavy metals will enable the establishment of novel therapeutic approaches to prevent or cure ET.Öğe One of the Factor Associated with Etiopathogenesis of Diabetes Mellitus: Intraerythrocyte Fluid Volume(İstanbul Gelisim University, 2024) Bahtiyar, Nurten; Aydemir, Birsen; Hacıoğlu, Burcu; Sevinç Afşar, Leyla; Savaş, Gamze; Köse, Fadime; Azmamedova, İnciAim: The aim of the present study was to investigate the levels of intraerythrocyte fluid volume, erythrocyte indices, and biochemical parameters and to evaluate the relationship between intraerythrocyte fluid volume and these parameters in patients with Diabetes Mellitus (DM) and healthy controls. Method: The study included 42 patients with DM and 40 healthy controls. Biochemical parameters were measured using an automated analyzer. Complete blood counts were performed using an automated hematology analyzer, and intraerythrocyte fluid volumes were measured using the microcentrifugation method. Results: Intraerythrocyte fluid volume, glycated hemoglobin (HbA1c), and glucose levels were higher in the patient group than in the control group, whereas mean corpuscular volume (MCV), potassium (K), and sodium (Na) values were lower in the patient group than in the control group. On the other hand, a negative correlation was found between intraerythrocyte fluid volume and mean corpuscular hemoglobin concentration (MCHC), magnesium (Mg), and K values in the patient group. Conclusion: Studies findings indicated that intraerythrocyte fluid volume may be an effective hemodynamic parameter in the etiopathogenesis of DM. In line with these data, it can be suggested that intraerythrocyte fluid volume is an important factor that should be considered in monitoring the progression of the disease.Öğe Oxidized Low Density Lipoprotein Receptor 1 3'UTR 188C>T Gene Polymorphism in Patients with Coronary Artery Bypass Grafting(Galenos Publ House, 2023) Bahtiyar, Nurten; Baykara, Onur; Hacioglu, Yalcin; Oner, Tuba; Cinemre, Fatma Behice; Aydemir, Birsen; Onaran, IlhanAim: Coronary artery disease (CAD) is a pathological process characterized by atherosclerotic plaque accumulation in the epicardial arteries. Inflammation and high lipid levels play a role in pathological changes in atherosclerosis. Besides traditional risk factors, genetic factors such as single nucleotide polymorphism (SNPs) can be involved in disease process. In this study, we aimed to evaluate the effects of oxidized low density lipoprotein receptor 1 (OLR1) 3'UTR188C>T gene polymorphism, C -reactive protein (CRP), and lipid status in patients with coronary artery bypass grafting (CABG). Materials and Methods: The study population consisted of 109 CAD patients who had undergone CABG, and 127 healthy controls. The OLR1 3'UTR188C>T polymorphism was genotyped using PCR-RFLP technique. Serum CRP, high -density lipoprotein -cholesterol (HDL-C), and low -density lipoprotein -cholesterol (LDL-C) levels were measured with an automatic biochemistry analyzer. Results: The distribution of the OLR1 3'UTR188C>T genotypes and alleles did not differ significantly between CAD patients with CABG and controls. Serum CRP levels were increased in patients compared to the control group (p<0.001), but HDL-C, and LDL-C levels were not different between two groups. Traditional risk factor such as cigarette smoking, alcohol use, family history, diabetes mellitus and hypertension were increased in patients compared to the control group (p<0.001, for each). The CRP levels were higher in patients with the TT, CT, and CC genotypes than in controls with the same genotypes (p<0.001, p<0.01, and p<0.05, respectively). Conclusion: OLR1 3'UTR 188C>T polymorphism may not be involved in susceptibility to atherosclerosis. However, traditional risk factors in atherosclerosis such as smoking, alcohol consumption, family history, hypertension, diabetes mellitus, and circulating CRP levels were increased in our CABG population. The evaluation of OLR1 3'UTR188C>T and different OLR1 SNPs may be useful for their single and combined effects in atherosclerosis.Öğe Sağlık Hizmetleri Meslek ve Sağlık Bilimleri Yüksekokullarındaki Öğrencilerin Elektromanyetik Alan Maruziyetinin Araştırılması(2018) Öğüt, Selim; Sevinç, Leyla; Serinkan Cinemre, Fatma Behice; Cinemre, Hakan; Bahtiyar, Nurten; Küçük Ataman, Buket; Aydemir, BirsenAmaç Günümüzde, teknolojik gelişmelerle birlikte elektromanyetik alanlara (EMA) maruziyet oldukça artmıştır. Bunun insan sağlığı üzerindeki etkileri üzerine çeşitli çalışmalar bulunmaktadır. Bu araştırmada amacımız, Sağlık Hizmetleri Meslek ve Sağlık Bilimleri Yüksekokulları öğrencilerinin yaşam alanlarında EMA'lara maruziyeti ve sağlıkları üzerine etkilerini araştırmaktı. ( Sakarya Tıp Dergisi 2018, 8(4):806-812 )Gereç ve YöntemlerBu çalışmaya 552 öğrenciye EMA maruziyeti ve bunun sağlık üzerine etkilerini sorgulayan bir anket uygulandı.Bulgular Çalışmaya katılan öğrencilerin %34,2’si erkek, %65,8’i kız ve yaş ortanca değeri 21’idi (min-max: 18-41). Katılımcıların %29’u baz istasyonlarına ve %19,4’ü yüksek voltaj hatlarına yakın oturmaktaydılar. %45,5'i günde 5 saatten fazla elektrik/ elektronik sistemlere maruz kalırken, %72,5’nin yatak odasında elektrikli/ elektronik cihazlar bulundurmaktaydı. %83,9'unun evinde internet ağı, %44’ünün evinde mikrodalga fırın olduğu belirlendi. Katılan öğrencilerin %74,3’ü yorgunluk hissinden şikâyetçi idi ve ki kare analiziyle bu şikayet, günlük elektrikli/ elektronik cihaz maruziyet süresi ile anlamlı bir ilişki gösterdi (x2: 0.332- P<0.016). Aynı şekilde yorgunluk hissi ve göz rahatsızlıklarının (% 27,4), yatak odasında elektronik cihaz bulunması durumuyla istatistiksel anlamlı ilişki gösterdi (x2: 7.630- P<0.006; x2: 11.832- P<0.008, sırasıyla). Diğer bir anlamlı ilişki de günlük bilgisayar kullanımı saat ile koku problemi (% 4) arasında tespit edildi (x2: 11.832- P<0.008). Sonuç Teknolojik sistemlerden yayılan elektromanyetik radyasyonun insanlar üzerindeki uzun vadeli etkisi belirsiz olsa da, bulgular elektromanyetik radyasyonun insanlarda bazı sağlık sorunlarına neden olabileceğini düşündürmektedir. Daha kesin sonuçlar için daha kapsamlı popülasyonlarda bilimsel çalışmalara ihtiyaç vardır.Öğe Thyroid Dysfunctions Due to Lithium Treatment in Bipolar Disorder: Changes in Oxidative Stress, Trace Elements, and Hemorheological Parameters(Polish Society Magnesium Research, 2020) Bahtiyar, Nurten; Cinemre, Fatma Behice Serinkan; Cinemre, Hakan; Kızıler, Ali Rıza; Atagün, Murat İlhan; Gulyasar, Tevfik; Aydemir, BirsenLithium is one of the most widely used medications for the treatment of bipolar disorder (BD). It also has some side effects on thyroid functions. We aimed to investigate the role of oxidative stress, trace elements, and hemorheological parameters on the pathophysiology of thyroid dysfunctions developed by lithium treatment in patients with BD. Patients with BD were divided into three groups: patients that non-lithium-treated, lithium-treated patients for 4-6 weeks, and lithium-treated patients for 40-68 weeks. Blood samples for analysis were taken before and after the treatment period. After analysis, patients were divided into six groups: non-treatment BD group (Group 1); short-term lithium-treatment group that did not develop thyroid dysfunctions (Group 2); short-term lithium-treatment group that developed hyperthyroidism (Group 3); long-term lithium treatment group that developed hypothyroidism (Group 4), long-term lithium-treatment group that developed hyperthyroidism (Group 5), and long-term lithium-treatment group that did not develop thyroid dysfunctions (Group 6). Plasma and whole blood viscosity levels were significantly increased in Groups 4 and 6 compared to Groups 1, 2, and 3. Hemoglobin levels were lower in Group 4 than in Groups 1, 2, and 5. Fibrinogen values were higher in Groups 4 and 5 than Group 1. Plasma and erythrocyte malondialdehyde levels were higher in Group 4 than In Groups 1, 2, 3, and 5. Also, they were increased in Group 6 in comparison with Groups 2 and 3. Erythrocyte glutathione levels were lower in Groups 4 and 6 than Groups 1, 2, 3 and 5. Plasma protein carbonyls levels were higher in Group 4 than in Group 1, or in Group 5 than in Groups 1, 2, and 3, as well as in Group 6 than Groups 1, and 2. Serum zinc levels were higher in Groups 2, 3 and 6 than in Group1. Serum copper levels increased in Groups 2, 4 and 6 in comparison with Group1. The results of this study indicate that oxidative stress increased with treatment time in lithium-induced thyroid dysfunctions. Also, whole blood viscosity, plasma viscosity, fibrinogen, zinc, and copper levels were affected by lithium treatment and treatment duration induced thyroid dysfunctions.
