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  • Küçük Resim
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    Analysis of human omentum-associated lymphoid tissue components with S-100: an immunohistochemical study
    (Editura Acad Romane, 2010) Yildirim, A.; Aktas, A.; Nergiz, Y.; Akkus, M.
    Milky spots are opaque patches in the greater omentum. They were first described by von Recklinghausen (1863) in the omentum of rabbits. In man, milky spots are relatively uniform, highly vascularized accumulations of mononuclear cells. The objective of this study was to describe in human omental lymphoid tissue components with S-100. Tissue samples (greater omentum) were collected from 14 patients operated with different reasons in our Department of General Surgery, in order to histologically present the presence of S-100 in the cells making up the milky spots in human omentum tissue. Tissue samples were cut approximately 5-8 micrometer thick with frozen-sections and stained with an indirect immunoperoxidase technique, as described previously. Then milky spots were examined by light microscopy. These data indicate that unstimulated milky spots in the human greater omentum are to a great extent just a preformed specific accumulation of primarily macrophages within the stroma of the greater omentum, secondarily B-and T-lymphocytes. In addition to these cells, we observed that a few mast and reticular cells were seen in the milky spots by S-100 reactive cross-sections of greater omentum. In the human omentum tissue that was stained with indirect immunoperoxidase method using anti S-100 monoclonal antibody, an arteriole cross-section in the center, reactive nerve cross-sections in the adjacent stroma and endogenic peroxidase reactivity in a few granulocytes in omental tissue were observed.
  • Küçük Resim
    Öğe
    Relation between egg shape index and egg quality characteristics
    (Eugen Ulmer Gmbh Co, 2016) Duman, M.; Sekeroglu, A.; Yildirim, A.; Eleroglu, H.; Camci, O.
    The objective of this study was to investigate the impact of the egg shape index on egg quality characteristics. The eggs used in this study were laid by layers of the ATAK-S strain. The eggs were classified with respect to shape index (SI), namely sharp eggs (SI < 72), normal (standard) eggs (SI = 72-76) and round eggs (SI > 76). A total of 166 eggs were analysed to determine egg quality characteristics. Effects of egg shape on L*, a*, b*, specific gravity, albumen index and Haugh unit were statistically significant. However, the effects of egg shape index on egg weight,.E value, breaking strength, shell thickness, shell weight, surface area, yolk index, yolk colour, albumen pH and albumen and yolk blood spots were not significant. Statistically significant correlations between egg shape index and egg weight, L*, b*, specific gravity, egg surface area, albumen index and Haugh unit were determined. But, shape index did not correlate with a*, Delta E value, breaking strength, shell thickness, shell weight, yolk index, yolk colour and albumen pH. In conclusion, it is clear that the shape index has an effect on some egg quality characteristics. Therefore, shape index should be considered for use in future breeding programs.