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Browsing by Author "Caf, Fatma"

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    Article
    The Correlation Between the Differences in Nucb2/Nesfatin(nes) Peptide Levels and Body Weight, Lenght and Gender in Alburnus Tarichi
    (Central Fisheries Research inst, 2018) Caf, Fatma; Koprucu, Sibel; Algul, Sermin; Koyun, Mustafa; Atici, Ataman Altug
    Nucleobindin-2 (NUCB2) is a 396-amino-acid peptide related to food intake and body weight. It suppresses appetite by acting on the hypothalamus, andits derived peptide, nesfatin-1, was shown to reduce food intake and body weight in rodents. In this study, we examined NUCB2 peptide levels in correlation with body weight, length and gender in adult Alburnus tarichi fish. Serum NUCB2 levels were measured with ELISA, and were observed to significantly vary depending on gender: 0.43 +/- 0.17 ng/mL in the males (n=6) and 0.28 +/- 0.11 ng/ml in the females (n= 6) (p<0.05). However, NUCB2 levels were not significantly correlated to body weight (r=-0.08, p=0.7) or length (r=-0.16, p= 0.6). NUCB2/nesfatin, an appetiteregulation hormone, was therefore shown to be impacted by gender but not by body weight or length in A. tarichi.
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    Article
    Evaluation of Total Antioxidant Status, Total Oxidant Status and Oxidative Stress Index of Some Economically Important Plants From Turkey
    (Mattioli 1885, 2018) Caf, Fatma; Kilic, Omer; Algul, Sermin
    This study aims to develop antioxidant properties of thirty four economically important plants of Asteraceae and Lamiaceae families, from Turkey. Analyses were done with reliable measurement research kits. Total antioxidant status, total oxidant status were determined with a novel method using available enzyme-linked immuno assay kit (TOS Cat. No: RL0024, TAS Cat. No: RL0017). Total antioxidant (TAS) level of studied Aster aceae and Lamiaceae taxa were detected as 71.61 +/- 37.05 mmol/L and 36.97 +/- 9.6 mmol/L, respectively. In addition, TAS level of Asteraceae taxa was found to be higher (p<0.38) than Lamiaceae taxa. When compared total oxidant (TOS) level of Asteraceae (3.02 +/- 0.66) and Lamiaceae taxa (5.26 +/- 1.06), no significant (p=0.08) differences were observed. In the similar way OSI levels in the Asteraceae (12.52 +/- 3.63 AU) Lamiaceae families (30.8 +/- 8.4 AU) were found to be no significant difference (p=0.05). The present study concluded that antioxidative feature of studied plant taxa is remarkable. So studied plant taxa are emerges a natural source of antioxidants and could be a good experimental system for further researches.