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    High-sensitivity C-reactive protein and high mobility group box-1 levels in Parkinson's disease
    (Springer-Verlag Italia Srl, 2019) Baran, Aslihan; Bulut, Mahmut; Kaya, Mehmet Cemal; Demirpence, Ozlem; Sevim, Bunyamin; Akil, Esref; Varol, Sefer
    Various immunologic and inflammatory factors are contributed to pathogenesis of Parkinson's disease (PD). High mobility group box-1 (HMGB1) is a protein that plays certain roles in inflammation, DNA repair, transcription, somatic recombination, cell differentiation, cell migration, neuronal development, and neurodegeneration. The aim of the present study was to evaluate the serum levels of HMGB1 and high-sensitivity C-reactive protein (hs-CRP) among patients with Parkinson's disease and healthy controls. This study includes 30 patients with PD and 30 healthy controls, matched sex, age, body mass index, and smoking status. HMGB1 and hs-CRP serum levels were compared between the groups. The diagnostic performance of HMGB1 and hs-CRP was evaluated with receiver operating characteristic (ROC) curve analysis. HMGB1 levels were significantly higher in PD patients than in controls. Hs-CRP levels were significantly higher in PD patients than in controls There was a moderate correlation between hs-CRP and HMGB1 levels in the patient group. The cut-off value of HMGB1 level for the prediction of PD was determined as 32.8ng/mL with 80% sensitivity and 60% specificity (p=0.006). The cut-off value of hs-CRP level for the prediction of PD was determined as 0.63mg/L with 66.7% sensitivity and 77.7% specificity (p=0.007). This study demonstrates for the first time the association between HMGB1, hs-CRP, and PD. We found that HMGB1 and hs-CRP levels to be significantly higher in the PD patients than in the normal controls. As a result of the ROC curve analysis, HMGB1 and hs-CRP levels may be fair markers in the diagnosis of PD.
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    Increased High Mobility Group Box1 (HMGB1) level in major depressive disorder
    (Yerkure Tanitim & Yayincilik Hizmetleri A S, 2015) Demir, Suleyman; Bulut, Mahmut; Kaya, Mehmet Cemal; Sevim, Bunyamin; Demirpence, Ozlem; Ibiloglu, Aslihan Okan; Gunes, Mehmet
    Objective: It was reported that High Mobility Group Box 1 (HMGB1), also known as the nuclear transcription factor, is a late mediator of inflammation. It was thought that HMGB1 has a prominent role in the activation of Tumor Necrosis Factor-a (TNF-alpha), Interleukin (IL)-1 beta and IL-8 which are proinflammatory mediators during inflammation. HMGB1 plays a role in progress, diagnosis and prognosis of immune system illnesses. Besides suppressing the immune system, Major Depressive Disorder (MDD) was indicated to cause changes in inflammatory processes. Biological determinants affecting the diagnosis, therapy, and prognosis of depression are quite limited. Therefore, new etiological models are needed to explain the pathophysiology of depression. There is no study in the literature investigating level of HMGB1 in MDD of the humans. This study aims to examine the role of inflammation in the etiology of depression based on the HMGB1 in patients with MDD. Methods: A total of 30 patients diagnosed with MDD were included in the study. The control group consisted of 30 healthy subjects without any psychiatric disorders. A socio-demographic information form, Hamilton Depression Rating Scale (HDRS) and Clinical Global Impression Scale (CGIS) were administered, and blood was taken for measurement of HMGB1 levels. Results: Significantly higher HMGB1 values were identified with the patient group when compared to the control group (p<0.05). Conclusion: Our study is the first in which HMGB1 level was investigated in MDD ot the humans. The findings of the study reveal that HMGB1 tends to be higher in patients with MDD, and a high HMGB1 value supports the view that inflammation might have a critical role in the etiology of MDD.
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    Serum paraoxonase, TAS, TOS and ceruloplasmin in brucellosis
    (E-Century Publishing Corp, 2014) Demirpence, Ozlem; Sevim, Bunyamin; Yildirim, Mustafa; Nurlu, Nilhan Ayan; Mert, Duygu; Evliyaoglu, Osman
    It is possible that brucellosis may be related to increase free radical production and antioxidant depletion. Thus, in the present study we aimed to evaluate the oxidative status in patient with brucellosis and healthy controls. Methods: This study includes the patients with brucellosis diagnosed by clinical findings and positive agglutination titer. The paraoxonase, ceruloplasmin, total antioxidant capacity and total oxidant status values were measured from the samples taken. The oxidative stress index value was calculated through the total antioxidant capacity and total oxidant status values. Results: A total number of 93 people, 40 women (43%) and 53 men (57%) were included to the study. The levels of ceruloplasmin were found higher in patients when compared to the control group (p < 0.001). The total antioxidant capacity level was found significantly higher in the patients group when compared to the control group (p < 0.001). The oxidative stress index value was significantly lower in the patients group when compared to the control group (p < 0.001). The paraoxonase-1 level was not different in control and patient groups (p = 0.077). Conclusions: Brucellosis is an infection that is frequently seen in Mediterranean countries. This infection breaks the oxidant and antioxidant balance. In this disease, oxidant-antioxidant system indicators such as ceruloplasmin, total antioxidant capacity, total oxidant status and oxidative stress index can be used for showing the role of the brucella infection and for the monitoring of the treatment results.