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  • Küçük Resim
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    Relationship of adma levels with cardiovascular parameters in patients with peritoneal dialysis: A bioimpedance analysis study
    (AVES, 2018) Şumnu, Abdullah; Cebeci, Egemen; Öztürk, Savaş; Gürsu, Meltem; Kasapoğlu, Ergün; Özkan, Oktay; Gümüş, Alper; Gürdal, Ahmet; Karadağ, Serhat; Kumbasar, Abdulbaki; Kazancıoğlu, Rümeyza
    Objective: Asymmetric dimethylarginine (ADMA) is known as a non-traditional risk factor for cardiovascular disease. Considering the increased prevalence of hypervolemia and heart failure in patients with peritoneal dialysis (PD), we aimed to investigate the relationship of ADMA with other biochemical parameters, echocardiographic findings, and results of bioimpedance analysis, which is a method for the determination of body fluid distribution in detail. Methods: The study was conducted on 21 patients with chronic PD. Bioimpedance was evaluated by Body Composition Monitor H02.201.1 (R). ADMA level was analyzed by an ELISA kit. Results: The mean ADMA level was 87.6 +/- 58.2 (18.54-247.34) mu mol/L. The mean ADMA level in patients with hypertension was significantly higher than those with normal blood pressure (95.8 +/- 58.8 mu mol/L and 41.0 +/- 27.9 mu mol/L, respectively; p=0.045). In univariate analysis, the parameters associated with serum ADMA levels were uric acid (r=0.681, p=0.001), left ventricular end-systolic diameter (LVESD) (r=0.509, p=0.019), intracellular water (ICW) (r=0.606, p=0.004), extracellular water (r=0.471, p=0.031), dialysate-to-plasma (D/P) creatinine ratio (r=0.452, p=0.04), body surface area (r=0.52, p=0.016), total body water (r=0.581, p=0.006), and lean tissue mass (r=0.528, p=0.014). In multivariate analysis, only uric acid level, ICW, LVESD, and D/P creatinine were found to be significantly associated with ADMA. Conclusion: Serum ADMA level may be a useful marker to detect cardiovascular risk in patients with PD. Serum uric acid and LVESD are important parameters related to ADMA levels in patients with PD. Bioimpedance spectroscopy findings support the association of ADMA with body fluid volume.
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    Retrospective evaluation of hospitalized patients treated with pleural drainage due to pleural effusion
    (Galenos Publishing House, 2021) Özdemir, Servet; Karandere, Faruk; Çıtak, Necati; Ulukan, Mustafa Özer; Kumbasar, Abdulbaki
    Objective: Pleural effusion (PE) is a common pathological condition that can occur during the clinical course of many diseases. This study aimed to retrospectively evaluate the clinical features and treatment results of patients with pleural fluid drainage due to PE. Methods: A retrospective analysis was performed in the study with 103 patients between January 2020 and March 2021, who had pleural drainage due to PE. The posteroanterior and lateral chest radiographs were evaluated. Results: A total of 103 patients were included in the study, with an overall mean age of 62.5 years minimum: 24, maximum: 91 years. Most patients had three or more comorbid diseases (n=53, 51.5%). The majority of patients had drainage using a pleural catheter (n=97, 94.2%). Cytological examination of the pleural fluid revealed malignancy in 5 (4.9%) patients, whereas 89 (86.4%) were discharged during follow-up, and 14 (13.6%) had mortality. In the patients who died, more fluid with exudate characteristics at a level close to statistical significance was detected. Malignant cells were detected in the pleural fluid in 10% of patients with primary malignant cases (n=50), whereas no malignant cell was found in the pleural fluid of patients without malignancy diagnosis (n=53), with a statistically significant difference between patients with and without malignancy. The total length of hospital stay was significantly higher in patients undergoing a second surgical procedure. Conclusion: Patients undergoing pleural fluid drainage had at least one systemic disease. The most common systemic disease in patients was a cardiac disease, followed by malignant disease. "No malignant cells were detected in the fluids of patients without primary malignancy," in the cytology. In addition, the rate of second pleural surgery is high in PE cases, which further prolongs the length of hospitalization of these patients.
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    The relationship between elevated plasma zonulin levels and Hashimoto's thyroiditis
    (Tubitak Scientific and Technical Research Council Turkey, 2022) Demir, Esra; Önal, Burak; Özkan, Hanise; Kıraç Utku, İrem; Sahtiyancı, Berrak; Kumbasar, Abdulbaki; Yenmiş, Güven; Demir, Bülent
    Background/aim: Hashimoto thyroiditis (HT) is one of the most prevalent autoimmune diseases. The intestine microbiota is strongly associated with autoimmune diseases. Zonulin, a modulator of tight junctions that controls the selective permeability of the intestine can induce an elevation in gut permeability. We aimed to investigate the association of plasma zonulin levels with HT. Materials and methods: We compared 77 HT patients with 66 age-gender and BMI-matched healthy individuals in the case of plasma zonulin levels. Plasma zonulin levels were measured by ELISA. The statistical analyses were performed using Student's t-test and chi-square tests. The predictive power was investigated using univariate and multivariate logistic regression analysis. Results: We found that the increase in plasma zonulin levels in the HT group was statistically significant compared to the control group (p < 0.001). The regression analysis showed that urea, anti-thyroid peroxidase, aspartate aminotransferase, thyroid-stimulating hormone, free T3, and serum zonulin levels were found to be associated with HT in both univariate and multivariate models (p < 0.05). Conclusion: Zonulin is a possible biomarker candidate that may link intestinal permeability with the etiology of autoimmune diseases.