Yazar "Şen, Hadice Selimoǧlu" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim
    Öğe
    Carvacrol and pomegranate extract in treating methotrexate-induced lung oxidative injury in rats
    (International Scientific Literature Inc., 2014) Şen, Hadice Selimoǧlu; Şen, Velat; Bozkurt, Mehtap; Türkçü, Gül; Güzel, Abdulmenap; Sezgi, Cengizhan; Abakay, Özlem; Kaplan, İbrahim
    Background: This study was designed to evaluate the effects of carvacrol (CRV) and pomegranate extract (PE) on methotrexate (MTX)-induced lung injury in rats.Material/Methods: A total of 32 male rats were subdivided into 4 groups: control (group I), MTX treated (group II), MTX+CRV treated (group III), and MTX+PE treated (group IV). A single dose of 73 mg/kg CRV was administered intraperitoneally to rats in group III on Day 1 of the investigation. To group IV, a dose of 225 mg/kg of PE was administered via orogastric gavage once daily over 7 days. A single dose of 20 mg/kg of MTX was given intraperitoneally to groups II, III, and IV on Day2. The total duration of experiment was 8 days. Malondialdehyde (MDA), total oxidant status (TOS), total antioxidant capacity (TAC), and oxidative stress index (OSI) were measured from rat lung tissues and cardiac blood samples.Results: Serum and lung specimen analyses demonstrated that MDA, TOS, and OSI levels were significantly greater in group II relative to controls. Conversely, the TAC level was significantly reduced in group II when compared to the control group. Pre-administering either CRV or PE was associated with decreased MDA, TOS, and OSI levels and increased TAC levels compared to rats treated with MTX alone. Histopathological examination revealed that lung injury was less severe in group III and IV relative to group II.Conclusions: MTX treatment results in rat lung oxidative damage that is partially counteracted by pretreatment with either CRV or PE.
  • Küçük Resim
    Öğe
    The relationship of fluid overload as assessed by bioelectrical impedance analysis with pulmonary arterial hypertension in hemodialysis patients
    (International Scientific Literature Inc., 2016) Yılmaz, Süreyya; Yıldırım, Yaşar; Taylan, Mahsuk; Demir, Melike; Yılmaz, Zülfükar; Kara, Ali Veysel; Aydın, Fatma; Şen, Hadice Selimoǧlu; Karabulut, Aziz; Topçu, Füsun
    Background: Pulmonary arterial hypertension (PAH) is common disease among hemodialysis (HD) patients and is associated with increased morbidity and mortality. However, its pathogenesis has not been completely elucidated. We aimed to evaluate the frequency of PAH in HD patients, as well as the relationship between fluid status and PAH. Material/Methods: We enrolled 77 HD patients in this study. Multifrequency bioimpedance analysis (BIA) was used to assess fluid status. BIA was performed before and 30 min after the midweek of HD. Overhydration (OH)/extracellular water (ECW)% ratio was used as an indicator of fluid status. Fluid overload was defined as OH/ECW ?7%. Echocardiographic examinations were performed before and after the HD. Pulmonary arterial hypertension was defined as systolic pulmonary artery pressure at rest (sPAP) higher than 35 mmHg. Results: PAH was found in 33.7% of the HD patients. OH/ECW and the frequency of fluid overload were significantly higher in HD patients with PAH than those without PAH, whereas serum albumin and hemoglobin levels were significantly lower. sPAP level was significantly higher in HD patients with fluid overload than in those without fluid overload after hemodialysis session. Furthermore, sPAP, OH/ECW levels, and the frequency of PAH were significantly reduced after HD. We also found a significant positive correlation between sPAP and OH/ECW. Multivariate logistic regression analysis demonstrated fluid overload to be an independent predictor of PAH after HD. Conclusions: PAH is prevalent among HD patients. This study demonstrated a strong relationship between fluid overload and PAH in HD patients.