Yazar "Or, Mehmet Erman" seçeneğine göre listele

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  • Küçük Resim
    Öğe
    A disseminated cutaneous plasmacytoma case in a dog
    (Scientific Technical Research Council Turkey-Tubitak, 2014) Özkan, Burçak; Ülgen, Sinem; Yıldırım, Funda; Kızıler, Ali Rıza; Özer, Kürşat; Or, Mehmet Erman; Dodurka, Hazım Tamer
    A 5-year-old mixed-breed dog presenting with diffuse lesions was diagnosed with cutaneous plasmacytoma. Sites where tumors occurred most often involved the skin of the facial areas, as well as that of the shoulder, neck, and back of the body. No systemic findings were present in spite of a significant enlargement of the lesions. The tumors varied in diameter, the largest being 5-10 cm. Tissue samples obtained from tumoral masses were fixed in 10% formalin, processed routinely, embedded in paraffin, cut into sections of 4-5 mu m, and stained with hematoxylin and eosin. To determine the nature of the tumoral cells, kappa and lambda light chain antibodies were applied to the paraffin sections immunohistochemically. The tumor was diagnosed as cutaneous plasmacytoma according to its morphological and microscopical properties. Tumor cells displayed features of asynchronous plasmacytoma. The patient was cured by medical treatment. The disease and the chemotherapy procedure ended with a favorable prognosis and are discussed here due to the rarity of such cases.
  • Küçük Resim
    Öğe
    Relationships Linking the Element, Bioactive, Hydroxymethylfurfural, Color of Kars Honeys: a Chemometric Approach
    (Springernature, 2022) Aksoy, Aksem; Tarhan, Duygu; Yıkmış, Seydi; Ercan, Alev Meltem; Altunatmaz, Sema Sandıkçı; Aksu, Filiz; Or, Mehmet Erman
    Honey is a natural food substance considered among functional foods due to its positive effect on human health. Quality of honey is significantly influenced by environmental conditions and botanical origin. This study aimed to determine the element content in honey from Kars, Turkey, as well as the bioactive compounds and certain physicochemical and biochemical properties such as hydroxymethylfurfural (HMF) and color in a chemometric approach. In this study, a total of 41 local honey samples were analyzed. The levels of elements Al, As, B, Cd, Cr, Cu, Fe, Mg, Zn, and Pb were determined by inductively coupled plasma optical emission spectrophotometer (ICP-OES). The mean concentrations of the elements in the samples were identified as 3.09, 0.64, 59.07, 0.02, 0.14, 0.17, 1.76, 9.32, 0.78, and 0.33 mu g/g for Al, As, B, Cd, Cr, Cu, Fe, Mg, Zn, and Pb, respectively. The mean bioactive compounds of the honey samples were determined as phenolic content (19.74 mg GAE/100 g), flavonoid content (4.47 mg CE/100 mg), and DPPH (49.08% inhibition). The HMF levels of all samples conformed to the honey standards of the Codex Alimentarius and Turkish Food Codex. HMF was not negatively correlated with the other color parameters except for the a* (redness or greenness) value. This study showed that clustering analysis (CA) and principal component analysis (PCA) are useful for distinguishing the originality of honey samples by using element content, bioactive properties, HMF, and color and were useful in defining the Kars honey type.